From 2504c7ec728b7a2b6ca067e2a908fd1af2aad57c Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Wed, 22 Nov 2023 13:09:41 +0100 Subject: drm: Remove source code for non-KMS drivers Remove all remaining source code for non-KMS drivers. These drivers have been removed in v6.3 and won't comeback. Signed-off-by: Thomas Zimmermann Reviewed-by: David Airlie Reviewed-by: Daniel Vetter Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20231122122449.11588-13-tzimmermann@suse.de --- drivers/gpu/drm/Makefile | 12 - drivers/gpu/drm/drm_agpsupport.c | 451 ---------- drivers/gpu/drm/drm_bufs.c | 1627 ------------------------------------- drivers/gpu/drm/drm_context.c | 513 ------------ drivers/gpu/drm/drm_dma.c | 178 ---- drivers/gpu/drm/drm_hashtab.c | 203 ----- drivers/gpu/drm/drm_internal.h | 5 - drivers/gpu/drm/drm_irq.c | 204 ----- drivers/gpu/drm/drm_legacy.h | 290 ------- drivers/gpu/drm/drm_legacy_misc.c | 105 --- drivers/gpu/drm/drm_lock.c | 373 --------- drivers/gpu/drm/drm_memory.c | 138 ---- drivers/gpu/drm/drm_pci.c | 203 ----- drivers/gpu/drm/drm_scatter.c | 220 ----- drivers/gpu/drm/drm_vm.c | 665 --------------- include/drm/drm_auth.h | 22 - include/drm/drm_device.h | 71 +- include/drm/drm_drv.h | 19 - include/drm/drm_file.h | 5 - include/drm/drm_legacy.h | 331 -------- 20 files changed, 2 insertions(+), 5633 deletions(-) delete mode 100644 drivers/gpu/drm/drm_agpsupport.c delete mode 100644 drivers/gpu/drm/drm_bufs.c delete mode 100644 drivers/gpu/drm/drm_context.c delete mode 100644 drivers/gpu/drm/drm_dma.c delete mode 100644 drivers/gpu/drm/drm_hashtab.c delete mode 100644 drivers/gpu/drm/drm_irq.c delete mode 100644 drivers/gpu/drm/drm_legacy.h delete mode 100644 drivers/gpu/drm/drm_legacy_misc.c delete mode 100644 drivers/gpu/drm/drm_lock.c delete mode 100644 drivers/gpu/drm/drm_memory.c delete mode 100644 drivers/gpu/drm/drm_scatter.c delete mode 100644 drivers/gpu/drm/drm_vm.c delete mode 100644 include/drm/drm_legacy.h diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index b4cb0835620a..8ac6f4b9546e 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -47,18 +47,6 @@ drm-y := \ drm_vblank_work.o \ drm_vma_manager.o \ drm_writeback.o -drm-$(CONFIG_DRM_LEGACY) += \ - drm_agpsupport.o \ - drm_bufs.o \ - drm_context.o \ - drm_dma.o \ - drm_hashtab.o \ - drm_irq.o \ - drm_legacy_misc.o \ - drm_lock.o \ - drm_memory.o \ - drm_scatter.o \ - drm_vm.o drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o drm-$(CONFIG_COMPAT) += drm_ioc32.o drm-$(CONFIG_DRM_PANEL) += drm_panel.o diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c deleted file mode 100644 index a4ad6fd13abc..000000000000 --- a/drivers/gpu/drm/drm_agpsupport.c +++ /dev/null @@ -1,451 +0,0 @@ -/* - * \file drm_agpsupport.c - * DRM support for AGP/GART backend - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include - -#if IS_ENABLED(CONFIG_AGP) -#include -#endif - -#include -#include -#include -#include - -#include "drm_legacy.h" - -#if IS_ENABLED(CONFIG_AGP) - -/* - * Get AGP information. - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device has been initialized and acquired and fills in the - * drm_agp_info structure with the information in drm_agp_head::agp_info. - */ -int drm_legacy_agp_info(struct drm_device *dev, struct drm_agp_info *info) -{ - struct agp_kern_info *kern; - - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - - kern = &dev->agp->agp_info; - info->agp_version_major = kern->version.major; - info->agp_version_minor = kern->version.minor; - info->mode = kern->mode; - info->aperture_base = kern->aper_base; - info->aperture_size = kern->aper_size * 1024 * 1024; - info->memory_allowed = kern->max_memory << PAGE_SHIFT; - info->memory_used = kern->current_memory << PAGE_SHIFT; - info->id_vendor = kern->device->vendor; - info->id_device = kern->device->device; - - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_info); - -int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_info *info = data; - int err; - - err = drm_legacy_agp_info(dev, info); - if (err) - return err; - - return 0; -} - -/* - * Acquire the AGP device. - * - * \param dev DRM device that is to acquire AGP. - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device hasn't been acquired before and calls - * \c agp_backend_acquire. - */ -int drm_legacy_agp_acquire(struct drm_device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev->dev); - - if (!dev->agp) - return -ENODEV; - if (dev->agp->acquired) - return -EBUSY; - dev->agp->bridge = agp_backend_acquire(pdev); - if (!dev->agp->bridge) - return -ENODEV; - dev->agp->acquired = 1; - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_acquire); - -/* - * Acquire the AGP device (ioctl). - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device hasn't been acquired before and calls - * \c agp_backend_acquire. - */ -int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - return drm_legacy_agp_acquire((struct drm_device *)file_priv->minor->dev); -} - -/* - * Release the AGP device. - * - * \param dev DRM device that is to release AGP. - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device has been acquired and calls \c agp_backend_release. - */ -int drm_legacy_agp_release(struct drm_device *dev) -{ - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - agp_backend_release(dev->agp->bridge); - dev->agp->acquired = 0; - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_release); - -int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - return drm_legacy_agp_release(dev); -} - -/* - * Enable the AGP bus. - * - * \param dev DRM device that has previously acquired AGP. - * \param mode Requested AGP mode. - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device has been acquired but not enabled, and calls - * \c agp_enable. - */ -int drm_legacy_agp_enable(struct drm_device *dev, struct drm_agp_mode mode) -{ - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - - dev->agp->mode = mode.mode; - agp_enable(dev->agp->bridge, mode.mode); - dev->agp->enabled = 1; - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_enable); - -int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_mode *mode = data; - - return drm_legacy_agp_enable(dev, *mode); -} - -/* - * Allocate AGP memory. - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device is present and has been acquired, allocates the - * memory via agp_allocate_memory() and creates a drm_agp_mem entry for it. - */ -int drm_legacy_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request) -{ - struct drm_agp_mem *entry; - struct agp_memory *memory; - unsigned long pages; - u32 type; - - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - entry = kzalloc(sizeof(*entry), GFP_KERNEL); - if (!entry) - return -ENOMEM; - - pages = DIV_ROUND_UP(request->size, PAGE_SIZE); - type = (u32) request->type; - memory = agp_allocate_memory(dev->agp->bridge, pages, type); - if (!memory) { - kfree(entry); - return -ENOMEM; - } - - entry->handle = (unsigned long)memory->key + 1; - entry->memory = memory; - entry->bound = 0; - entry->pages = pages; - list_add(&entry->head, &dev->agp->memory); - - request->handle = entry->handle; - request->physical = memory->physical; - - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_alloc); - - -int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_buffer *request = data; - - return drm_legacy_agp_alloc(dev, request); -} - -/* - * Search for the AGP memory entry associated with a handle. - * - * \param dev DRM device structure. - * \param handle AGP memory handle. - * \return pointer to the drm_agp_mem structure associated with \p handle. - * - * Walks through drm_agp_head::memory until finding a matching handle. - */ -static struct drm_agp_mem *drm_legacy_agp_lookup_entry(struct drm_device *dev, - unsigned long handle) -{ - struct drm_agp_mem *entry; - - list_for_each_entry(entry, &dev->agp->memory, head) { - if (entry->handle == handle) - return entry; - } - return NULL; -} - -/* - * Unbind AGP memory from the GATT (ioctl). - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device is present and acquired, looks-up the AGP memory - * entry and passes it to the unbind_agp() function. - */ -int drm_legacy_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request) -{ - struct drm_agp_mem *entry; - int ret; - - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - entry = drm_legacy_agp_lookup_entry(dev, request->handle); - if (!entry || !entry->bound) - return -EINVAL; - ret = agp_unbind_memory(entry->memory); - if (ret == 0) - entry->bound = 0; - return ret; -} -EXPORT_SYMBOL(drm_legacy_agp_unbind); - - -int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_binding *request = data; - - return drm_legacy_agp_unbind(dev, request); -} - -/* - * Bind AGP memory into the GATT (ioctl) - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device is present and has been acquired and that no memory - * is currently bound into the GATT. Looks-up the AGP memory entry and passes - * it to bind_agp() function. - */ -int drm_legacy_agp_bind(struct drm_device *dev, struct drm_agp_binding *request) -{ - struct drm_agp_mem *entry; - int retcode; - int page; - - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - entry = drm_legacy_agp_lookup_entry(dev, request->handle); - if (!entry || entry->bound) - return -EINVAL; - page = DIV_ROUND_UP(request->offset, PAGE_SIZE); - retcode = agp_bind_memory(entry->memory, page); - if (retcode) - return retcode; - entry->bound = dev->agp->base + (page << PAGE_SHIFT); - DRM_DEBUG("base = 0x%lx entry->bound = 0x%lx\n", - dev->agp->base, entry->bound); - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_bind); - - -int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_binding *request = data; - - return drm_legacy_agp_bind(dev, request); -} - -/* - * Free AGP memory (ioctl). - * - * \return zero on success or a negative number on failure. - * - * Verifies the AGP device is present and has been acquired and looks up the - * AGP memory entry. If the memory is currently bound, unbind it via - * unbind_agp(). Frees it via free_agp() as well as the entry itself - * and unlinks from the doubly linked list it's inserted in. - */ -int drm_legacy_agp_free(struct drm_device *dev, struct drm_agp_buffer *request) -{ - struct drm_agp_mem *entry; - - if (!dev->agp || !dev->agp->acquired) - return -EINVAL; - entry = drm_legacy_agp_lookup_entry(dev, request->handle); - if (!entry) - return -EINVAL; - if (entry->bound) - agp_unbind_memory(entry->memory); - - list_del(&entry->head); - - agp_free_memory(entry->memory); - kfree(entry); - return 0; -} -EXPORT_SYMBOL(drm_legacy_agp_free); - - -int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_agp_buffer *request = data; - - return drm_legacy_agp_free(dev, request); -} - -/* - * Initialize the AGP resources. - * - * \return pointer to a drm_agp_head structure. - * - * Gets the drm_agp_t structure which is made available by the agpgart module - * via the inter_module_* functions. Creates and initializes a drm_agp_head - * structure. - * - * Note that final cleanup of the kmalloced structure is directly done in - * drm_pci_agp_destroy. - */ -struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev) -{ - struct pci_dev *pdev = to_pci_dev(dev->dev); - struct drm_agp_head *head = NULL; - - head = kzalloc(sizeof(*head), GFP_KERNEL); - if (!head) - return NULL; - head->bridge = agp_find_bridge(pdev); - if (!head->bridge) { - head->bridge = agp_backend_acquire(pdev); - if (!head->bridge) { - kfree(head); - return NULL; - } - agp_copy_info(head->bridge, &head->agp_info); - agp_backend_release(head->bridge); - } else { - agp_copy_info(head->bridge, &head->agp_info); - } - if (head->agp_info.chipset == NOT_SUPPORTED) { - kfree(head); - return NULL; - } - INIT_LIST_HEAD(&head->memory); - head->cant_use_aperture = head->agp_info.cant_use_aperture; - head->page_mask = head->agp_info.page_mask; - head->base = head->agp_info.aper_base; - return head; -} -/* Only exported for i810.ko */ -EXPORT_SYMBOL(drm_legacy_agp_init); - -/** - * drm_legacy_agp_clear - Clear AGP resource list - * @dev: DRM device - * - * Iterate over all AGP resources and remove them. But keep the AGP head - * intact so it can still be used. It is safe to call this if AGP is disabled or - * was already removed. - * - * Cleanup is only done for drivers who have DRIVER_LEGACY set. - */ -void drm_legacy_agp_clear(struct drm_device *dev) -{ - struct drm_agp_mem *entry, *tempe; - - if (!dev->agp) - return; - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { - if (entry->bound) - agp_unbind_memory(entry->memory); - agp_free_memory(entry->memory); - kfree(entry); - } - INIT_LIST_HEAD(&dev->agp->memory); - - if (dev->agp->acquired) - drm_legacy_agp_release(dev); - - dev->agp->acquired = 0; - dev->agp->enabled = 0; -} - -#endif diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c deleted file mode 100644 index 86700560fea2..000000000000 --- a/drivers/gpu/drm/drm_bufs.c +++ /dev/null @@ -1,1627 +0,0 @@ -/* - * Legacy: Generic DRM Buffer Management - * - * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Author: Rickard E. (Rik) Faith - * Author: Gareth Hughes - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include -#include - -#include "drm_legacy.h" - - -static struct drm_map_list *drm_find_matching_map(struct drm_device *dev, - struct drm_local_map *map) -{ - struct drm_map_list *entry; - - list_for_each_entry(entry, &dev->maplist, head) { - /* - * Because the kernel-userspace ABI is fixed at a 32-bit offset - * while PCI resources may live above that, we only compare the - * lower 32 bits of the map offset for maps of type - * _DRM_FRAMEBUFFER or _DRM_REGISTERS. - * It is assumed that if a driver have more than one resource - * of each type, the lower 32 bits are different. - */ - if (!entry->map || - map->type != entry->map->type || - entry->master != dev->master) - continue; - switch (map->type) { - case _DRM_SHM: - if (map->flags != _DRM_CONTAINS_LOCK) - break; - return entry; - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: - if ((entry->map->offset & 0xffffffff) == - (map->offset & 0xffffffff)) - return entry; - break; - default: /* Make gcc happy */ - break; - } - if (entry->map->offset == map->offset) - return entry; - } - - return NULL; -} - -static int drm_map_handle(struct drm_device *dev, struct drm_hash_item *hash, - unsigned long user_token, int hashed_handle, int shm) -{ - int use_hashed_handle, shift; - unsigned long add; - -#if (BITS_PER_LONG == 64) - use_hashed_handle = ((user_token & 0xFFFFFFFF00000000UL) || hashed_handle); -#elif (BITS_PER_LONG == 32) - use_hashed_handle = hashed_handle; -#else -#error Unsupported long size. Neither 64 nor 32 bits. -#endif - - if (!use_hashed_handle) { - int ret; - - hash->key = user_token >> PAGE_SHIFT; - ret = drm_ht_insert_item(&dev->map_hash, hash); - if (ret != -EINVAL) - return ret; - } - - shift = 0; - add = DRM_MAP_HASH_OFFSET >> PAGE_SHIFT; - if (shm && (SHMLBA > PAGE_SIZE)) { - int bits = ilog2(SHMLBA >> PAGE_SHIFT) + 1; - - /* For shared memory, we have to preserve the SHMLBA - * bits of the eventual vma->vm_pgoff value during - * mmap(). Otherwise we run into cache aliasing problems - * on some platforms. On these platforms, the pgoff of - * a mmap() request is used to pick a suitable virtual - * address for the mmap() region such that it will not - * cause cache aliasing problems. - * - * Therefore, make sure the SHMLBA relevant bits of the - * hash value we use are equal to those in the original - * kernel virtual address. - */ - shift = bits; - add |= ((user_token >> PAGE_SHIFT) & ((1UL << bits) - 1UL)); - } - - return drm_ht_just_insert_please(&dev->map_hash, hash, - user_token, 32 - PAGE_SHIFT - 3, - shift, add); -} - -/* - * Core function to create a range of memory available for mapping by a - * non-root process. - * - * Adjusts the memory offset to its absolute value according to the mapping - * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where - * applicable and if supported by the kernel. - */ -static int drm_addmap_core(struct drm_device *dev, resource_size_t offset, - unsigned int size, enum drm_map_type type, - enum drm_map_flags flags, - struct drm_map_list **maplist) -{ - struct drm_local_map *map; - struct drm_map_list *list; - unsigned long user_token; - int ret; - - map = kmalloc(sizeof(*map), GFP_KERNEL); - if (!map) - return -ENOMEM; - - map->offset = offset; - map->size = size; - map->flags = flags; - map->type = type; - - /* Only allow shared memory to be removable since we only keep enough - * book keeping information about shared memory to allow for removal - * when processes fork. - */ - if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) { - kfree(map); - return -EINVAL; - } - DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n", - (unsigned long long)map->offset, map->size, map->type); - - /* page-align _DRM_SHM maps. They are allocated here so there is no security - * hole created by that and it works around various broken drivers that use - * a non-aligned quantity to map the SAREA. --BenH - */ - if (map->type == _DRM_SHM) - map->size = PAGE_ALIGN(map->size); - - if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) { - kfree(map); - return -EINVAL; - } - map->mtrr = -1; - map->handle = NULL; - - switch (map->type) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: -#if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__arm__) - if (map->offset + (map->size-1) < map->offset || - map->offset < virt_to_phys(high_memory)) { - kfree(map); - return -EINVAL; - } -#endif - /* Some drivers preinitialize some maps, without the X Server - * needing to be aware of it. Therefore, we just return success - * when the server tries to create a duplicate map. - */ - list = drm_find_matching_map(dev, map); - if (list != NULL) { - if (list->map->size != map->size) { - DRM_DEBUG("Matching maps of type %d with " - "mismatched sizes, (%ld vs %ld)\n", - map->type, map->size, - list->map->size); - list->map->size = map->size; - } - - kfree(map); - *maplist = list; - return 0; - } - - if (map->type == _DRM_FRAME_BUFFER || - (map->flags & _DRM_WRITE_COMBINING)) { - map->mtrr = - arch_phys_wc_add(map->offset, map->size); - } - if (map->type == _DRM_REGISTERS) { - if (map->flags & _DRM_WRITE_COMBINING) - map->handle = ioremap_wc(map->offset, - map->size); - else - map->handle = ioremap(map->offset, map->size); - if (!map->handle) { - kfree(map); - return -ENOMEM; - } - } - - break; - case _DRM_SHM: - list = drm_find_matching_map(dev, map); - if (list != NULL) { - if (list->map->size != map->size) { - DRM_DEBUG("Matching maps of type %d with " - "mismatched sizes, (%ld vs %ld)\n", - map->type, map->size, list->map->size); - list->map->size = map->size; - } - - kfree(map); - *maplist = list; - return 0; - } - map->handle = vmalloc_user(map->size); - DRM_DEBUG("%lu %d %p\n", - map->size, order_base_2(map->size), map->handle); - if (!map->handle) { - kfree(map); - return -ENOMEM; - } - map->offset = (unsigned long)map->handle; - if (map->flags & _DRM_CONTAINS_LOCK) { - /* Prevent a 2nd X Server from creating a 2nd lock */ - if (dev->master->lock.hw_lock != NULL) { - vfree(map->handle); - kfree(map); - return -EBUSY; - } - dev->sigdata.lock = dev->master->lock.hw_lock = map->handle; /* Pointer to lock */ - } - break; - case _DRM_AGP: { - struct drm_agp_mem *entry; - int valid = 0; - - if (!dev->agp) { - kfree(map); - return -EINVAL; - } -#ifdef __alpha__ - map->offset += dev->hose->mem_space->start; -#endif - /* In some cases (i810 driver), user space may have already - * added the AGP base itself, because dev->agp->base previously - * only got set during AGP enable. So, only add the base - * address if the map's offset isn't already within the - * aperture. - */ - if (map->offset < dev->agp->base || - map->offset > dev->agp->base + - dev->agp->agp_info.aper_size * 1024 * 1024 - 1) { - map->offset += dev->agp->base; - } - map->mtrr = dev->agp->agp_mtrr; /* for getmap */ - - /* This assumes the DRM is in total control of AGP space. - * It's not always the case as AGP can be in the control - * of user space (i.e. i810 driver). So this loop will get - * skipped and we double check that dev->agp->memory is - * actually set as well as being invalid before EPERM'ing - */ - list_for_each_entry(entry, &dev->agp->memory, head) { - if ((map->offset >= entry->bound) && - (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) { - valid = 1; - break; - } - } - if (!list_empty(&dev->agp->memory) && !valid) { - kfree(map); - return -EPERM; - } - DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n", - (unsigned long long)map->offset, map->size); - - break; - } - case _DRM_SCATTER_GATHER: - if (!dev->sg) { - kfree(map); - return -EINVAL; - } - map->offset += (unsigned long)dev->sg->virtual; - break; - case _DRM_CONSISTENT: - /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G, - * As we're limiting the address to 2^32-1 (or less), - * casting it down to 32 bits is no problem, but we - * need to point to a 64bit variable first. - */ - map->handle = dma_alloc_coherent(dev->dev, - map->size, - &map->offset, - GFP_KERNEL); - if (!map->handle) { - kfree(map); - return -ENOMEM; - } - break; - default: - kfree(map); - return -EINVAL; - } - - list = kzalloc(sizeof(*list), GFP_KERNEL); - if (!list) { - if (map->type == _DRM_REGISTERS) - iounmap(map->handle); - kfree(map); - return -EINVAL; - } - list->map = map; - - mutex_lock(&dev->struct_mutex); - list_add(&list->head, &dev->maplist); - - /* Assign a 32-bit handle */ - /* We do it here so that dev->struct_mutex protects the increment */ - user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle : - map->offset; - ret = drm_map_handle(dev, &list->hash, user_token, 0, - (map->type == _DRM_SHM)); - if (ret) { - if (map->type == _DRM_REGISTERS) - iounmap(map->handle); - kfree(map); - kfree(list); - mutex_unlock(&dev->struct_mutex); - return ret; - } - - list->user_token = list->hash.key << PAGE_SHIFT; - mutex_unlock(&dev->struct_mutex); - - if (!(map->flags & _DRM_DRIVER)) - list->master = dev->master; - *maplist = list; - return 0; -} - -int drm_legacy_addmap(struct drm_device *dev, resource_size_t offset, - unsigned int size, enum drm_map_type type, - enum drm_map_flags flags, struct drm_local_map **map_ptr) -{ - struct drm_map_list *list; - int rc; - - rc = drm_addmap_core(dev, offset, size, type, flags, &list); - if (!rc) - *map_ptr = list->map; - return rc; -} -EXPORT_SYMBOL(drm_legacy_addmap); - -struct drm_local_map *drm_legacy_findmap(struct drm_device *dev, - unsigned int token) -{ - struct drm_map_list *_entry; - - list_for_each_entry(_entry, &dev->maplist, head) - if (_entry->user_token == token) - return _entry->map; - return NULL; -} -EXPORT_SYMBOL(drm_legacy_findmap); - -/* - * Ioctl to specify a range of memory that is available for mapping by a - * non-root process. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a drm_map structure. - * \return zero on success or a negative value on error. - * - */ -int drm_legacy_addmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_map *map = data; - struct drm_map_list *maplist; - int err; - - if (!(capable(CAP_SYS_ADMIN) || map->type == _DRM_AGP || map->type == _DRM_SHM)) - return -EPERM; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - err = drm_addmap_core(dev, map->offset, map->size, map->type, - map->flags, &maplist); - - if (err) - return err; - - /* avoid a warning on 64-bit, this casting isn't very nice, but the API is set so too late */ - map->handle = (void *)(unsigned long)maplist->user_token; - - /* - * It appears that there are no users of this value whatsoever -- - * drmAddMap just discards it. Let's not encourage its use. - * (Keeping drm_addmap_core's returned mtrr value would be wrong -- - * it's not a real mtrr index anymore.) - */ - map->mtrr = -1; - - return 0; -} - -/* - * Get a mapping information. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_map structure. - * - * \return zero on success or a negative number on failure. - * - * Searches for the mapping with the specified offset and copies its information - * into userspace - */ -int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_map *map = data; - struct drm_map_list *r_list = NULL; - struct list_head *list; - int idx; - int i; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - idx = map->offset; - if (idx < 0) - return -EINVAL; - - i = 0; - mutex_lock(&dev->struct_mutex); - list_for_each(list, &dev->maplist) { - if (i == idx) { - r_list = list_entry(list, struct drm_map_list, head); - break; - } - i++; - } - if (!r_list || !r_list->map) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - map->offset = r_list->map->offset; - map->size = r_list->map->size; - map->type = r_list->map->type; - map->flags = r_list->map->flags; - map->handle = (void *)(unsigned long) r_list->user_token; - map->mtrr = arch_phys_wc_index(r_list->map->mtrr); - - mutex_unlock(&dev->struct_mutex); - - return 0; -} - -/* - * Remove a map private from list and deallocate resources if the mapping - * isn't in use. - * - * Searches the map on drm_device::maplist, removes it from the list, see if - * it's being used, and free any associated resource (such as MTRR's) if it's not - * being on use. - * - * \sa drm_legacy_addmap - */ -int drm_legacy_rmmap_locked(struct drm_device *dev, struct drm_local_map *map) -{ - struct drm_map_list *r_list = NULL, *list_t; - int found = 0; - struct drm_master *master; - - /* Find the list entry for the map and remove it */ - list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) { - if (r_list->map == map) { - master = r_list->master; - list_del(&r_list->head); - drm_ht_remove_key(&dev->map_hash, - r_list->user_token >> PAGE_SHIFT); - kfree(r_list); - found = 1; - break; - } - } - - if (!found) - return -EINVAL; - - switch (map->type) { - case _DRM_REGISTERS: - iounmap(map->handle); - fallthrough; - case _DRM_FRAME_BUFFER: - arch_phys_wc_del(map->mtrr); - break; - case _DRM_SHM: - vfree(map->handle); - if (master) { - if (dev->sigdata.lock == master->lock.hw_lock) - dev->sigdata.lock = NULL; - master->lock.hw_lock = NULL; /* SHM removed */ - master->lock.file_priv = NULL; - wake_up_interruptible_all(&master->lock.lock_queue); - } - break; - case _DRM_AGP: - case _DRM_SCATTER_GATHER: - break; - case _DRM_CONSISTENT: - dma_free_coherent(dev->dev, - map->size, - map->handle, - map->offset); - break; - } - kfree(map); - - return 0; -} -EXPORT_SYMBOL(drm_legacy_rmmap_locked); - -void drm_legacy_rmmap(struct drm_device *dev, struct drm_local_map *map) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - mutex_lock(&dev->struct_mutex); - drm_legacy_rmmap_locked(dev, map); - mutex_unlock(&dev->struct_mutex); -} -EXPORT_SYMBOL(drm_legacy_rmmap); - -void drm_legacy_master_rmmaps(struct drm_device *dev, struct drm_master *master) -{ - struct drm_map_list *r_list, *list_temp; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - mutex_lock(&dev->struct_mutex); - list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { - if (r_list->master == master) { - drm_legacy_rmmap_locked(dev, r_list->map); - r_list = NULL; - } - } - mutex_unlock(&dev->struct_mutex); -} - -void drm_legacy_rmmaps(struct drm_device *dev) -{ - struct drm_map_list *r_list, *list_temp; - - list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) - drm_legacy_rmmap(dev, r_list->map); -} - -/* The rmmap ioctl appears to be unnecessary. All mappings are torn down on - * the last close of the device, and this is necessary for cleanup when things - * exit uncleanly. Therefore, having userland manually remove mappings seems - * like a pointless exercise since they're going away anyway. - * - * One use case might be after addmap is allowed for normal users for SHM and - * gets used by drivers that the server doesn't need to care about. This seems - * unlikely. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a struct drm_map structure. - * \return zero on success or a negative value on error. - */ -int drm_legacy_rmmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_map *request = data; - struct drm_local_map *map = NULL; - struct drm_map_list *r_list; - int ret; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - mutex_lock(&dev->struct_mutex); - list_for_each_entry(r_list, &dev->maplist, head) { - if (r_list->map && - r_list->user_token == (unsigned long)request->handle && - r_list->map->flags & _DRM_REMOVABLE) { - map = r_list->map; - break; - } - } - - /* List has wrapped around to the head pointer, or it's empty we didn't - * find anything. - */ - if (list_empty(&dev->maplist) || !map) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - /* Register and framebuffer maps are permanent */ - if ((map->type == _DRM_REGISTERS) || (map->type == _DRM_FRAME_BUFFER)) { - mutex_unlock(&dev->struct_mutex); - return 0; - } - - ret = drm_legacy_rmmap_locked(dev, map); - - mutex_unlock(&dev->struct_mutex); - - return ret; -} - -/* - * Cleanup after an error on one of the addbufs() functions. - * - * \param dev DRM device. - * \param entry buffer entry where the error occurred. - * - * Frees any pages and buffers associated with the given entry. - */ -static void drm_cleanup_buf_error(struct drm_device *dev, - struct drm_buf_entry *entry) -{ - drm_dma_handle_t *dmah; - int i; - - if (entry->seg_count) { - for (i = 0; i < entry->seg_count; i++) { - if (entry->seglist[i]) { - dmah = entry->seglist[i]; - dma_free_coherent(dev->dev, - dmah->size, - dmah->vaddr, - dmah->busaddr); - kfree(dmah); - } - } - kfree(entry->seglist); - - entry->seg_count = 0; - } - - if (entry->buf_count) { - for (i = 0; i < entry->buf_count; i++) { - kfree(entry->buflist[i].dev_private); - } - kfree(entry->buflist); - - entry->buf_count = 0; - } -} - -#if IS_ENABLED(CONFIG_AGP) -/* - * Add AGP buffers for DMA transfers. - * - * \param dev struct drm_device to which the buffers are to be added. - * \param request pointer to a struct drm_buf_desc describing the request. - * \return zero on success or a negative number on failure. - * - * After some sanity checks creates a drm_buf structure for each buffer and - * reallocates the buffer list of the same size order to accommodate the new - * buffers. - */ -int drm_legacy_addbufs_agp(struct drm_device *dev, - struct drm_buf_desc *request) -{ - struct drm_device_dma *dma = dev->dma; - struct drm_buf_entry *entry; - struct drm_agp_mem *agp_entry; - struct drm_buf *buf; - unsigned long offset; - unsigned long agp_offset; - int count; - int order; - int size; - int alignment; - int page_order; - int total; - int byte_count; - int i, valid; - struct drm_buf **temp_buflist; - - if (!dma) - return -EINVAL; - - count = request->count; - order = order_base_2(request->size); - size = 1 << order; - - alignment = (request->flags & _DRM_PAGE_ALIGN) - ? PAGE_ALIGN(size) : size; - page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; - total = PAGE_SIZE << page_order; - - byte_count = 0; - agp_offset = dev->agp->base + request->agp_start; - - DRM_DEBUG("count: %d\n", count); - DRM_DEBUG("order: %d\n", order); - DRM_DEBUG("size: %d\n", size); - DRM_DEBUG("agp_offset: %lx\n", agp_offset); - DRM_DEBUG("alignment: %d\n", alignment); - DRM_DEBUG("page_order: %d\n", page_order); - DRM_DEBUG("total: %d\n", total); - - if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) - return -EINVAL; - - /* Make sure buffers are located in AGP memory that we own */ - valid = 0; - list_for_each_entry(agp_entry, &dev->agp->memory, head) { - if ((agp_offset >= agp_entry->bound) && - (agp_offset + total * count <= agp_entry->bound + agp_entry->pages * PAGE_SIZE)) { - valid = 1; - break; - } - } - if (!list_empty(&dev->agp->memory) && !valid) { - DRM_DEBUG("zone invalid\n"); - return -EINVAL; - } - spin_lock(&dev->buf_lock); - if (dev->buf_use) { - spin_unlock(&dev->buf_lock); - return -EBUSY; - } - atomic_inc(&dev->buf_alloc); - spin_unlock(&dev->buf_lock); - - mutex_lock(&dev->struct_mutex); - entry = &dma->bufs[order]; - if (entry->buf_count) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; /* May only call once for each order */ - } - - if (count < 0 || count > 4096) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -EINVAL; - } - - entry->buflist = kcalloc(count, sizeof(*entry->buflist), GFP_KERNEL); - if (!entry->buflist) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - entry->buf_size = size; - entry->page_order = page_order; - - offset = 0; - - while (entry->buf_count < count) { - buf = &entry->buflist[entry->buf_count]; - buf->idx = dma->buf_count + entry->buf_count; - buf->total = alignment; - buf->order = order; - buf->used = 0; - - buf->offset = (dma->byte_count + offset); - buf->bus_address = agp_offset + offset; - buf->address = (void *)(agp_offset + offset); - buf->next = NULL; - buf->waiting = 0; - buf->pending = 0; - buf->file_priv = NULL; - - buf->dev_priv_size = dev->driver->dev_priv_size; - buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL); - if (!buf->dev_private) { - /* Set count correctly so we free the proper amount. */ - entry->buf_count = count; - drm_cleanup_buf_error(dev, entry); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address); - - offset += alignment; - entry->buf_count++; - byte_count += PAGE_SIZE << page_order; - } - - DRM_DEBUG("byte_count: %d\n", byte_count); - - temp_buflist = krealloc(dma->buflist, - (dma->buf_count + entry->buf_count) * - sizeof(*dma->buflist), GFP_KERNEL); - if (!temp_buflist) { - /* Free the entry because it isn't valid */ - drm_cleanup_buf_error(dev, entry); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - dma->buflist = temp_buflist; - - for (i = 0; i < entry->buf_count; i++) { - dma->buflist[i + dma->buf_count] = &entry->buflist[i]; - } - - dma->buf_count += entry->buf_count; - dma->seg_count += entry->seg_count; - dma->page_count += byte_count >> PAGE_SHIFT; - dma->byte_count += byte_count; - - DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count); - DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count); - - mutex_unlock(&dev->struct_mutex); - - request->count = entry->buf_count; - request->size = size; - - dma->flags = _DRM_DMA_USE_AGP; - - atomic_dec(&dev->buf_alloc); - return 0; -} -EXPORT_SYMBOL(drm_legacy_addbufs_agp); -#endif /* CONFIG_AGP */ - -int drm_legacy_addbufs_pci(struct drm_device *dev, - struct drm_buf_desc *request) -{ - struct drm_device_dma *dma = dev->dma; - int count; - int order; - int size; - int total; - int page_order; - struct drm_buf_entry *entry; - drm_dma_handle_t *dmah; - struct drm_buf *buf; - int alignment; - unsigned long offset; - int i; - int byte_count; - int page_count; - unsigned long *temp_pagelist; - struct drm_buf **temp_buflist; - - if (!drm_core_check_feature(dev, DRIVER_PCI_DMA)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - count = request->count; - order = order_base_2(request->size); - size = 1 << order; - - DRM_DEBUG("count=%d, size=%d (%d), order=%d\n", - request->count, request->size, size, order); - - if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) - return -EINVAL; - - alignment = (request->flags & _DRM_PAGE_ALIGN) - ? PAGE_ALIGN(size) : size; - page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; - total = PAGE_SIZE << page_order; - - spin_lock(&dev->buf_lock); - if (dev->buf_use) { - spin_unlock(&dev->buf_lock); - return -EBUSY; - } - atomic_inc(&dev->buf_alloc); - spin_unlock(&dev->buf_lock); - - mutex_lock(&dev->struct_mutex); - entry = &dma->bufs[order]; - if (entry->buf_count) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; /* May only call once for each order */ - } - - if (count < 0 || count > 4096) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -EINVAL; - } - - entry->buflist = kcalloc(count, sizeof(*entry->buflist), GFP_KERNEL); - if (!entry->buflist) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - entry->seglist = kcalloc(count, sizeof(*entry->seglist), GFP_KERNEL); - if (!entry->seglist) { - kfree(entry->buflist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - /* Keep the original pagelist until we know all the allocations - * have succeeded - */ - temp_pagelist = kmalloc_array(dma->page_count + (count << page_order), - sizeof(*dma->pagelist), - GFP_KERNEL); - if (!temp_pagelist) { - kfree(entry->buflist); - kfree(entry->seglist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - memcpy(temp_pagelist, - dma->pagelist, dma->page_count * sizeof(*dma->pagelist)); - DRM_DEBUG("pagelist: %d entries\n", - dma->page_count + (count << page_order)); - - entry->buf_size = size; - entry->page_order = page_order; - byte_count = 0; - page_count = 0; - - while (entry->buf_count < count) { - dmah = kmalloc(sizeof(drm_dma_handle_t), GFP_KERNEL); - if (!dmah) { - /* Set count correctly so we free the proper amount. */ - entry->buf_count = count; - entry->seg_count = count; - drm_cleanup_buf_error(dev, entry); - kfree(temp_pagelist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - dmah->size = total; - dmah->vaddr = dma_alloc_coherent(dev->dev, - dmah->size, - &dmah->busaddr, - GFP_KERNEL); - if (!dmah->vaddr) { - kfree(dmah); - - /* Set count correctly so we free the proper amount. */ - entry->buf_count = count; - entry->seg_count = count; - drm_cleanup_buf_error(dev, entry); - kfree(temp_pagelist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - entry->seglist[entry->seg_count++] = dmah; - for (i = 0; i < (1 << page_order); i++) { - DRM_DEBUG("page %d @ 0x%08lx\n", - dma->page_count + page_count, - (unsigned long)dmah->vaddr + PAGE_SIZE * i); - temp_pagelist[dma->page_count + page_count++] - = (unsigned long)dmah->vaddr + PAGE_SIZE * i; - } - for (offset = 0; - offset + size <= total && entry->buf_count < count; - offset += alignment, ++entry->buf_count) { - buf = &entry->buflist[entry->buf_count]; - buf->idx = dma->buf_count + entry->buf_count; - buf->total = alignment; - buf->order = order; - buf->used = 0; - buf->offset = (dma->byte_count + byte_count + offset); - buf->address = (void *)(dmah->vaddr + offset); - buf->bus_address = dmah->busaddr + offset; - buf->next = NULL; - buf->waiting = 0; - buf->pending = 0; - buf->file_priv = NULL; - - buf->dev_priv_size = dev->driver->dev_priv_size; - buf->dev_private = kzalloc(buf->dev_priv_size, - GFP_KERNEL); - if (!buf->dev_private) { - /* Set count correctly so we free the proper amount. */ - entry->buf_count = count; - entry->seg_count = count; - drm_cleanup_buf_error(dev, entry); - kfree(temp_pagelist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - DRM_DEBUG("buffer %d @ %p\n", - entry->buf_count, buf->address); - } - byte_count += PAGE_SIZE << page_order; - } - - temp_buflist = krealloc(dma->buflist, - (dma->buf_count + entry->buf_count) * - sizeof(*dma->buflist), GFP_KERNEL); - if (!temp_buflist) { - /* Free the entry because it isn't valid */ - drm_cleanup_buf_error(dev, entry); - kfree(temp_pagelist); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - dma->buflist = temp_buflist; - - for (i = 0; i < entry->buf_count; i++) { - dma->buflist[i + dma->buf_count] = &entry->buflist[i]; - } - - /* No allocations failed, so now we can replace the original pagelist - * with the new one. - */ - if (dma->page_count) { - kfree(dma->pagelist); - } - dma->pagelist = temp_pagelist; - - dma->buf_count += entry->buf_count; - dma->seg_count += entry->seg_count; - dma->page_count += entry->seg_count << page_order; - dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order); - - mutex_unlock(&dev->struct_mutex); - - request->count = entry->buf_count; - request->size = size; - - if (request->flags & _DRM_PCI_BUFFER_RO) - dma->flags = _DRM_DMA_USE_PCI_RO; - - atomic_dec(&dev->buf_alloc); - return 0; - -} -EXPORT_SYMBOL(drm_legacy_addbufs_pci); - -static int drm_legacy_addbufs_sg(struct drm_device *dev, - struct drm_buf_desc *request) -{ - struct drm_device_dma *dma = dev->dma; - struct drm_buf_entry *entry; - struct drm_buf *buf; - unsigned long offset; - unsigned long agp_offset; - int count; - int order; - int size; - int alignment; - int page_order; - int total; - int byte_count; - int i; - struct drm_buf **temp_buflist; - - if (!drm_core_check_feature(dev, DRIVER_SG)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - if (!capable(CAP_SYS_ADMIN)) - return -EPERM; - - count = request->count; - order = order_base_2(request->size); - size = 1 << order; - - alignment = (request->flags & _DRM_PAGE_ALIGN) - ? PAGE_ALIGN(size) : size; - page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; - total = PAGE_SIZE << page_order; - - byte_count = 0; - agp_offset = request->agp_start; - - DRM_DEBUG("count: %d\n", count); - DRM_DEBUG("order: %d\n", order); - DRM_DEBUG("size: %d\n", size); - DRM_DEBUG("agp_offset: %lu\n", agp_offset); - DRM_DEBUG("alignment: %d\n", alignment); - DRM_DEBUG("page_order: %d\n", page_order); - DRM_DEBUG("total: %d\n", total); - - if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) - return -EINVAL; - - spin_lock(&dev->buf_lock); - if (dev->buf_use) { - spin_unlock(&dev->buf_lock); - return -EBUSY; - } - atomic_inc(&dev->buf_alloc); - spin_unlock(&dev->buf_lock); - - mutex_lock(&dev->struct_mutex); - entry = &dma->bufs[order]; - if (entry->buf_count) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; /* May only call once for each order */ - } - - if (count < 0 || count > 4096) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -EINVAL; - } - - entry->buflist = kcalloc(count, sizeof(*entry->buflist), GFP_KERNEL); - if (!entry->buflist) { - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - entry->buf_size = size; - entry->page_order = page_order; - - offset = 0; - - while (entry->buf_count < count) { - buf = &entry->buflist[entry->buf_count]; - buf->idx = dma->buf_count + entry->buf_count; - buf->total = alignment; - buf->order = order; - buf->used = 0; - - buf->offset = (dma->byte_count + offset); - buf->bus_address = agp_offset + offset; - buf->address = (void *)(agp_offset + offset - + (unsigned long)dev->sg->virtual); - buf->next = NULL; - buf->waiting = 0; - buf->pending = 0; - buf->file_priv = NULL; - - buf->dev_priv_size = dev->driver->dev_priv_size; - buf->dev_private = kzalloc(buf->dev_priv_size, GFP_KERNEL); - if (!buf->dev_private) { - /* Set count correctly so we free the proper amount. */ - entry->buf_count = count; - drm_cleanup_buf_error(dev, entry); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - - DRM_DEBUG("buffer %d @ %p\n", entry->buf_count, buf->address); - - offset += alignment; - entry->buf_count++; - byte_count += PAGE_SIZE << page_order; - } - - DRM_DEBUG("byte_count: %d\n", byte_count); - - temp_buflist = krealloc(dma->buflist, - (dma->buf_count + entry->buf_count) * - sizeof(*dma->buflist), GFP_KERNEL); - if (!temp_buflist) { - /* Free the entry because it isn't valid */ - drm_cleanup_buf_error(dev, entry); - mutex_unlock(&dev->struct_mutex); - atomic_dec(&dev->buf_alloc); - return -ENOMEM; - } - dma->buflist = temp_buflist; - - for (i = 0; i < entry->buf_count; i++) { - dma->buflist[i + dma->buf_count] = &entry->buflist[i]; - } - - dma->buf_count += entry->buf_count; - dma->seg_count += entry->seg_count; - dma->page_count += byte_count >> PAGE_SHIFT; - dma->byte_count += byte_count; - - DRM_DEBUG("dma->buf_count : %d\n", dma->buf_count); - DRM_DEBUG("entry->buf_count : %d\n", entry->buf_count); - - mutex_unlock(&dev->struct_mutex); - - request->count = entry->buf_count; - request->size = size; - - dma->flags = _DRM_DMA_USE_SG; - - atomic_dec(&dev->buf_alloc); - return 0; -} - -/* - * Add buffers for DMA transfers (ioctl). - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a struct drm_buf_desc request. - * \return zero on success or a negative number on failure. - * - * According with the memory type specified in drm_buf_desc::flags and the - * build options, it dispatches the call either to addbufs_agp(), - * addbufs_sg() or addbufs_pci() for AGP, scatter-gather or consistent - * PCI memory respectively. - */ -int drm_legacy_addbufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_buf_desc *request = data; - int ret; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - return -EOPNOTSUPP; - -#if IS_ENABLED(CONFIG_AGP) - if (request->flags & _DRM_AGP_BUFFER) - ret = drm_legacy_addbufs_agp(dev, request); - else -#endif - if (request->flags & _DRM_SG_BUFFER) - ret = drm_legacy_addbufs_sg(dev, request); - else if (request->flags & _DRM_FB_BUFFER) - ret = -EINVAL; - else - ret = drm_legacy_addbufs_pci(dev, request); - - return ret; -} - -/* - * Get information about the buffer mappings. - * - * This was originally mean for debugging purposes, or by a sophisticated - * client library to determine how best to use the available buffers (e.g., - * large buffers can be used for image transfer). - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a drm_buf_info structure. - * \return zero on success or a negative number on failure. - * - * Increments drm_device::buf_use while holding the drm_device::buf_lock - * lock, preventing of allocating more buffers after this call. Information - * about each requested buffer is then copied into user space. - */ -int __drm_legacy_infobufs(struct drm_device *dev, - void *data, int *p, - int (*f)(void *, int, struct drm_buf_entry *)) -{ - struct drm_device_dma *dma = dev->dma; - int i; - int count; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - spin_lock(&dev->buf_lock); - if (atomic_read(&dev->buf_alloc)) { - spin_unlock(&dev->buf_lock); - return -EBUSY; - } - ++dev->buf_use; /* Can't allocate more after this call */ - spin_unlock(&dev->buf_lock); - - for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) { - if (dma->bufs[i].buf_count) - ++count; - } - - DRM_DEBUG("count = %d\n", count); - - if (*p >= count) { - for (i = 0, count = 0; i < DRM_MAX_ORDER + 1; i++) { - struct drm_buf_entry *from = &dma->bufs[i]; - - if (from->buf_count) { - if (f(data, count, from) < 0) - return -EFAULT; - DRM_DEBUG("%d %d %d %d %d\n", - i, - dma->bufs[i].buf_count, - dma->bufs[i].buf_size, - dma->bufs[i].low_mark, - dma->bufs[i].high_mark); - ++count; - } - } - } - *p = count; - - return 0; -} - -static int copy_one_buf(void *data, int count, struct drm_buf_entry *from) -{ - struct drm_buf_info *request = data; - struct drm_buf_desc __user *to = &request->list[count]; - struct drm_buf_desc v = {.count = from->buf_count, - .size = from->buf_size, - .low_mark = from->low_mark, - .high_mark = from->high_mark}; - - if (copy_to_user(to, &v, offsetof(struct drm_buf_desc, flags))) - return -EFAULT; - return 0; -} - -int drm_legacy_infobufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_buf_info *request = data; - - return __drm_legacy_infobufs(dev, data, &request->count, copy_one_buf); -} - -/* - * Specifies a low and high water mark for buffer allocation - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg a pointer to a drm_buf_desc structure. - * \return zero on success or a negative number on failure. - * - * Verifies that the size order is bounded between the admissible orders and - * updates the respective drm_device_dma::bufs entry low and high water mark. - * - * \note This ioctl is deprecated and mostly never used. - */ -int drm_legacy_markbufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_device_dma *dma = dev->dma; - struct drm_buf_desc *request = data; - int order; - struct drm_buf_entry *entry; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - DRM_DEBUG("%d, %d, %d\n", - request->size, request->low_mark, request->high_mark); - order = order_base_2(request->size); - if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) - return -EINVAL; - entry = &dma->bufs[order]; - - if (request->low_mark < 0 || request->low_mark > entry->buf_count) - return -EINVAL; - if (request->high_mark < 0 || request->high_mark > entry->buf_count) - return -EINVAL; - - entry->low_mark = request->low_mark; - entry->high_mark = request->high_mark; - - return 0; -} - -/* - * Unreserve the buffers in list, previously reserved using drmDMA. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a drm_buf_free structure. - * \return zero on success or a negative number on failure. - * - * Calls free_buffer() for each used buffer. - * This function is primarily used for debugging. - */ -int drm_legacy_freebufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_device_dma *dma = dev->dma; - struct drm_buf_free *request = data; - int i; - int idx; - struct drm_buf *buf; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - DRM_DEBUG("%d\n", request->count); - for (i = 0; i < request->count; i++) { - if (copy_from_user(&idx, &request->list[i], sizeof(idx))) - return -EFAULT; - if (idx < 0 || idx >= dma->buf_count) { - DRM_ERROR("Index %d (of %d max)\n", - idx, dma->buf_count - 1); - return -EINVAL; - } - idx = array_index_nospec(idx, dma->buf_count); - buf = dma->buflist[idx]; - if (buf->file_priv != file_priv) { - DRM_ERROR("Process %d freeing buffer not owned\n", - task_pid_nr(current)); - return -EINVAL; - } - drm_legacy_free_buffer(dev, buf); - } - - return 0; -} - -/* - * Maps all of the DMA buffers into client-virtual space (ioctl). - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg pointer to a drm_buf_map structure. - * \return zero on success or a negative number on failure. - * - * Maps the AGP, SG or PCI buffer region with vm_mmap(), and copies information - * about each buffer into user space. For PCI buffers, it calls vm_mmap() with - * offset equal to 0, which drm_mmap() interprets as PCI buffers and calls - * drm_mmap_dma(). - */ -int __drm_legacy_mapbufs(struct drm_device *dev, void *data, int *p, - void __user **v, - int (*f)(void *, int, unsigned long, - struct drm_buf *), - struct drm_file *file_priv) -{ - struct drm_device_dma *dma = dev->dma; - int retcode = 0; - unsigned long virtual; - int i; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA)) - return -EOPNOTSUPP; - - if (!dma) - return -EINVAL; - - spin_lock(&dev->buf_lock); - if (atomic_read(&dev->buf_alloc)) { - spin_unlock(&dev->buf_lock); - return -EBUSY; - } - dev->buf_use++; /* Can't allocate more after this call */ - spin_unlock(&dev->buf_lock); - - if (*p >= dma->buf_count) { - if ((dev->agp && (dma->flags & _DRM_DMA_USE_AGP)) - || (drm_core_check_feature(dev, DRIVER_SG) - && (dma->flags & _DRM_DMA_USE_SG))) { - struct drm_local_map *map = dev->agp_buffer_map; - unsigned long token = dev->agp_buffer_token; - - if (!map) { - retcode = -EINVAL; - goto done; - } - virtual = vm_mmap(file_priv->filp, 0, map->size, - PROT_READ | PROT_WRITE, - MAP_SHARED, - token); - } else { - virtual = vm_mmap(file_priv->filp, 0, dma->byte_count, - PROT_READ | PROT_WRITE, - MAP_SHARED, 0); - } - if (virtual > -1024UL) { - /* Real error */ - retcode = (signed long)virtual; - goto done; - } - *v = (void __user *)virtual; - - for (i = 0; i < dma->buf_count; i++) { - if (f(data, i, virtual, dma->buflist[i]) < 0) { - retcode = -EFAULT; - goto done; - } - } - } - done: - *p = dma->buf_count; - DRM_DEBUG("%d buffers, retcode = %d\n", *p, retcode); - - return retcode; -} - -static int map_one_buf(void *data, int idx, unsigned long virtual, - struct drm_buf *buf) -{ - struct drm_buf_map *request = data; - unsigned long address = virtual + buf->offset; /* *** */ - - if (copy_to_user(&request->list[idx].idx, &buf->idx, - sizeof(request->list[0].idx))) - return -EFAULT; - if (copy_to_user(&request->list[idx].total, &buf->total, - sizeof(request->list[0].total))) - return -EFAULT; - if (clear_user(&request->list[idx].used, sizeof(int))) - return -EFAULT; - if (copy_to_user(&request->list[idx].address, &address, - sizeof(address))) - return -EFAULT; - return 0; -} - -int drm_legacy_mapbufs(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_buf_map *request = data; - - return __drm_legacy_mapbufs(dev, data, &request->count, - &request->virtual, map_one_buf, - file_priv); -} - -int drm_legacy_dma_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (dev->driver->dma_ioctl) - return dev->driver->dma_ioctl(dev, data, file_priv); - else - return -EINVAL; -} - -struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev) -{ - struct drm_map_list *entry; - - list_for_each_entry(entry, &dev->maplist, head) { - if (entry->map && entry->map->type == _DRM_SHM && - (entry->map->flags & _DRM_CONTAINS_LOCK)) { - return entry->map; - } - } - return NULL; -} -EXPORT_SYMBOL(drm_legacy_getsarea); diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c deleted file mode 100644 index a0fc779e5e1e..000000000000 --- a/drivers/gpu/drm/drm_context.c +++ /dev/null @@ -1,513 +0,0 @@ -/* - * Legacy: Generic DRM Contexts - * - * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Author: Rickard E. (Rik) Faith - * Author: Gareth Hughes - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include - -#include -#include -#include - -#include "drm_legacy.h" - -struct drm_ctx_list { - struct list_head head; - drm_context_t handle; - struct drm_file *tag; -}; - -/******************************************************************/ -/** \name Context bitmap support */ -/*@{*/ - -/* - * Free a handle from the context bitmap. - * - * \param dev DRM device. - * \param ctx_handle context handle. - * - * Clears the bit specified by \p ctx_handle in drm_device::ctx_bitmap and the entry - * in drm_device::ctx_idr, while holding the drm_device::struct_mutex - * lock. - */ -void drm_legacy_ctxbitmap_free(struct drm_device * dev, int ctx_handle) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - mutex_lock(&dev->struct_mutex); - idr_remove(&dev->ctx_idr, ctx_handle); - mutex_unlock(&dev->struct_mutex); -} - -/* - * Context bitmap allocation. - * - * \param dev DRM device. - * \return (non-negative) context handle on success or a negative number on failure. - * - * Allocate a new idr from drm_device::ctx_idr while holding the - * drm_device::struct_mutex lock. - */ -static int drm_legacy_ctxbitmap_next(struct drm_device * dev) -{ - int ret; - - mutex_lock(&dev->struct_mutex); - ret = idr_alloc(&dev->ctx_idr, NULL, DRM_RESERVED_CONTEXTS, 0, - GFP_KERNEL); - mutex_unlock(&dev->struct_mutex); - return ret; -} - -/* - * Context bitmap initialization. - * - * \param dev DRM device. - * - * Initialise the drm_device::ctx_idr - */ -void drm_legacy_ctxbitmap_init(struct drm_device * dev) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - idr_init(&dev->ctx_idr); -} - -/* - * Context bitmap cleanup. - * - * \param dev DRM device. - * - * Free all idr members using drm_ctx_sarea_free helper function - * while holding the drm_device::struct_mutex lock. - */ -void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - mutex_lock(&dev->struct_mutex); - idr_destroy(&dev->ctx_idr); - mutex_unlock(&dev->struct_mutex); -} - -/** - * drm_legacy_ctxbitmap_flush() - Flush all contexts owned by a file - * @dev: DRM device to operate on - * @file: Open file to flush contexts for - * - * This iterates over all contexts on @dev and drops them if they're owned by - * @file. Note that after this call returns, new contexts might be added if - * the file is still alive. - */ -void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) -{ - struct drm_ctx_list *pos, *tmp; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - mutex_lock(&dev->ctxlist_mutex); - - list_for_each_entry_safe(pos, tmp, &dev->ctxlist, head) { - if (pos->tag == file && - pos->handle != DRM_KERNEL_CONTEXT) { - if (dev->driver->context_dtor) - dev->driver->context_dtor(dev, pos->handle); - - drm_legacy_ctxbitmap_free(dev, pos->handle); - list_del(&pos->head); - kfree(pos); - } - } - - mutex_unlock(&dev->ctxlist_mutex); -} - -/*@}*/ - -/******************************************************************/ -/** \name Per Context SAREA Support */ -/*@{*/ - -/* - * Get per-context SAREA. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx_priv_map structure. - * \return zero on success or a negative number on failure. - * - * Gets the map from drm_device::ctx_idr with the handle specified and - * returns its handle. - */ -int drm_legacy_getsareactx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_priv_map *request = data; - struct drm_local_map *map; - struct drm_map_list *_entry; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - mutex_lock(&dev->struct_mutex); - - map = idr_find(&dev->ctx_idr, request->ctx_id); - if (!map) { - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - } - - request->handle = NULL; - list_for_each_entry(_entry, &dev->maplist, head) { - if (_entry->map == map) { - request->handle = - (void *)(unsigned long)_entry->user_token; - break; - } - } - - mutex_unlock(&dev->struct_mutex); - - if (request->handle == NULL) - return -EINVAL; - - return 0; -} - -/* - * Set per-context SAREA. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx_priv_map structure. - * \return zero on success or a negative number on failure. - * - * Searches the mapping specified in \p arg and update the entry in - * drm_device::ctx_idr with it. - */ -int drm_legacy_setsareactx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_priv_map *request = data; - struct drm_local_map *map = NULL; - struct drm_map_list *r_list = NULL; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - mutex_lock(&dev->struct_mutex); - list_for_each_entry(r_list, &dev->maplist, head) { - if (r_list->map - && r_list->user_token == (unsigned long) request->handle) - goto found; - } - bad: - mutex_unlock(&dev->struct_mutex); - return -EINVAL; - - found: - map = r_list->map; - if (!map) - goto bad; - - if (IS_ERR(idr_replace(&dev->ctx_idr, map, request->ctx_id))) - goto bad; - - mutex_unlock(&dev->struct_mutex); - - return 0; -} - -/*@}*/ - -/******************************************************************/ -/** \name The actual DRM context handling routines */ -/*@{*/ - -/* - * Switch context. - * - * \param dev DRM device. - * \param old old context handle. - * \param new new context handle. - * \return zero on success or a negative number on failure. - * - * Attempt to set drm_device::context_flag. - */ -static int drm_context_switch(struct drm_device * dev, int old, int new) -{ - if (test_and_set_bit(0, &dev->context_flag)) { - DRM_ERROR("Reentering -- FIXME\n"); - return -EBUSY; - } - - DRM_DEBUG("Context switch from %d to %d\n", old, new); - - if (new == dev->last_context) { - clear_bit(0, &dev->context_flag); - return 0; - } - - return 0; -} - -/* - * Complete context switch. - * - * \param dev DRM device. - * \param new new context handle. - * \return zero on success or a negative number on failure. - * - * Updates drm_device::last_context and drm_device::last_switch. Verifies the - * hardware lock is held, clears the drm_device::context_flag and wakes up - * drm_device::context_wait. - */ -static int drm_context_switch_complete(struct drm_device *dev, - struct drm_file *file_priv, int new) -{ - dev->last_context = new; /* PRE/POST: This is the _only_ writer. */ - - if (!_DRM_LOCK_IS_HELD(file_priv->master->lock.hw_lock->lock)) { - DRM_ERROR("Lock isn't held after context switch\n"); - } - - /* If a context switch is ever initiated - when the kernel holds the lock, release - that lock here. - */ - clear_bit(0, &dev->context_flag); - - return 0; -} - -/* - * Reserve contexts. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx_res structure. - * \return zero on success or a negative number on failure. - */ -int drm_legacy_resctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_res *res = data; - struct drm_ctx ctx; - int i; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (res->count >= DRM_RESERVED_CONTEXTS) { - memset(&ctx, 0, sizeof(ctx)); - for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) { - ctx.handle = i; - if (copy_to_user(&res->contexts[i], &ctx, sizeof(ctx))) - return -EFAULT; - } - } - res->count = DRM_RESERVED_CONTEXTS; - - return 0; -} - -/* - * Add context. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx structure. - * \return zero on success or a negative number on failure. - * - * Get a new handle for the context and copy to userspace. - */ -int drm_legacy_addctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx_list *ctx_entry; - struct drm_ctx *ctx = data; - int tmp_handle; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - tmp_handle = drm_legacy_ctxbitmap_next(dev); - if (tmp_handle == DRM_KERNEL_CONTEXT) { - /* Skip kernel's context and get a new one. */ - tmp_handle = drm_legacy_ctxbitmap_next(dev); - } - DRM_DEBUG("%d\n", tmp_handle); - if (tmp_handle < 0) { - DRM_DEBUG("Not enough free contexts.\n"); - /* Should this return -EBUSY instead? */ - return tmp_handle; - } - - ctx->handle = tmp_handle; - - ctx_entry = kmalloc(sizeof(*ctx_entry), GFP_KERNEL); - if (!ctx_entry) { - DRM_DEBUG("out of memory\n"); - return -ENOMEM; - } - - INIT_LIST_HEAD(&ctx_entry->head); - ctx_entry->handle = ctx->handle; - ctx_entry->tag = file_priv; - - mutex_lock(&dev->ctxlist_mutex); - list_add(&ctx_entry->head, &dev->ctxlist); - mutex_unlock(&dev->ctxlist_mutex); - - return 0; -} - -/* - * Get context. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx structure. - * \return zero on success or a negative number on failure. - */ -int drm_legacy_getctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - /* This is 0, because we don't handle any context flags */ - ctx->flags = 0; - - return 0; -} - -/* - * Switch context. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx structure. - * \return zero on success or a negative number on failure. - * - * Calls context_switch(). - */ -int drm_legacy_switchctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - DRM_DEBUG("%d\n", ctx->handle); - return drm_context_switch(dev, dev->last_context, ctx->handle); -} - -/* - * New context. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx structure. - * \return zero on success or a negative number on failure. - * - * Calls context_switch_complete(). - */ -int drm_legacy_newctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - DRM_DEBUG("%d\n", ctx->handle); - drm_context_switch_complete(dev, file_priv, ctx->handle); - - return 0; -} - -/* - * Remove context. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument pointing to a drm_ctx structure. - * \return zero on success or a negative number on failure. - * - * If not the special kernel context, calls ctxbitmap_free() to free the specified context. - */ -int drm_legacy_rmctx(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_ctx *ctx = data; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - DRM_DEBUG("%d\n", ctx->handle); - if (ctx->handle != DRM_KERNEL_CONTEXT) { - if (dev->driver->context_dtor) - dev->driver->context_dtor(dev, ctx->handle); - drm_legacy_ctxbitmap_free(dev, ctx->handle); - } - - mutex_lock(&dev->ctxlist_mutex); - if (!list_empty(&dev->ctxlist)) { - struct drm_ctx_list *pos, *n; - - list_for_each_entry_safe(pos, n, &dev->ctxlist, head) { - if (pos->handle == ctx->handle) { - list_del(&pos->head); - kfree(pos); - } - } - } - mutex_unlock(&dev->ctxlist_mutex); - - return 0; -} - -/*@}*/ diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c deleted file mode 100644 index eb6b741a6f99..000000000000 --- a/drivers/gpu/drm/drm_dma.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * \file drm_dma.c - * DMA IOCTL and function support - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com - * - * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include - -#include -#include - -#include "drm_legacy.h" - -/** - * drm_legacy_dma_setup() - Initialize the DMA data. - * - * @dev: DRM device. - * Return: zero on success or a negative value on failure. - * - * Allocate and initialize a drm_device_dma structure. - */ -int drm_legacy_dma_setup(struct drm_device *dev) -{ - int i; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) || - !drm_core_check_feature(dev, DRIVER_LEGACY)) - return 0; - - dev->buf_use = 0; - atomic_set(&dev->buf_alloc, 0); - - dev->dma = kzalloc(sizeof(*dev->dma), GFP_KERNEL); - if (!dev->dma) - return -ENOMEM; - - for (i = 0; i <= DRM_MAX_ORDER; i++) - memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0])); - - return 0; -} - -/** - * drm_legacy_dma_takedown() - Cleanup the DMA resources. - * - * @dev: DRM device. - * - * Free all pages associated with DMA buffers, the buffers and pages lists, and - * finally the drm_device::dma structure itself. - */ -void drm_legacy_dma_takedown(struct drm_device *dev) -{ - struct drm_device_dma *dma = dev->dma; - drm_dma_handle_t *dmah; - int i, j; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) || - !drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - if (!dma) - return; - - /* Clear dma buffers */ - for (i = 0; i <= DRM_MAX_ORDER; i++) { - if (dma->bufs[i].seg_count) { - DRM_DEBUG("order %d: buf_count = %d," - " seg_count = %d\n", - i, - dma->bufs[i].buf_count, - dma->bufs[i].seg_count); - for (j = 0; j < dma->bufs[i].seg_count; j++) { - if (dma->bufs[i].seglist[j]) { - dmah = dma->bufs[i].seglist[j]; - dma_free_coherent(dev->dev, - dmah->size, - dmah->vaddr, - dmah->busaddr); - kfree(dmah); - } - } - kfree(dma->bufs[i].seglist); - } - if (dma->bufs[i].buf_count) { - for (j = 0; j < dma->bufs[i].buf_count; j++) { - kfree(dma->bufs[i].buflist[j].dev_private); - } - kfree(dma->bufs[i].buflist); - } - } - - kfree(dma->buflist); - kfree(dma->pagelist); - kfree(dev->dma); - dev->dma = NULL; -} - -/** - * drm_legacy_free_buffer() - Free a buffer. - * - * @dev: DRM device. - * @buf: buffer to free. - * - * Resets the fields of \p buf. - */ -void drm_legacy_free_buffer(struct drm_device *dev, struct drm_buf * buf) -{ - if (!buf) - return; - - buf->waiting = 0; - buf->pending = 0; - buf->file_priv = NULL; - buf->used = 0; -} - -/** - * drm_legacy_reclaim_buffers() - Reclaim the buffers. - * - * @dev: DRM device. - * @file_priv: DRM file private. - * - * Frees each buffer associated with \p file_priv not already on the hardware. - */ -void drm_legacy_reclaim_buffers(struct drm_device *dev, - struct drm_file *file_priv) -{ - struct drm_device_dma *dma = dev->dma; - int i; - - if (!dma) - return; - for (i = 0; i < dma->buf_count; i++) { - if (dma->buflist[i]->file_priv == file_priv) { - switch (dma->buflist[i]->list) { - case DRM_LIST_NONE: - drm_legacy_free_buffer(dev, dma->buflist[i]); - break; - case DRM_LIST_WAIT: - dma->buflist[i]->list = DRM_LIST_RECLAIM; - break; - default: - /* Buffer already on hardware. */ - break; - } - } - } -} diff --git a/drivers/gpu/drm/drm_hashtab.c b/drivers/gpu/drm/drm_hashtab.c deleted file mode 100644 index 60afa1865559..000000000000 --- a/drivers/gpu/drm/drm_hashtab.c +++ /dev/null @@ -1,203 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND. USA. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * - **************************************************************************/ -/* - * Simple open hash tab implementation. - * - * Authors: - * Thomas Hellström - */ - -#include -#include -#include -#include -#include - -#include - -#include "drm_legacy.h" - -int drm_ht_create(struct drm_open_hash *ht, unsigned int order) -{ - unsigned int size = 1 << order; - - ht->order = order; - ht->table = NULL; - if (size <= PAGE_SIZE / sizeof(*ht->table)) - ht->table = kcalloc(size, sizeof(*ht->table), GFP_KERNEL); - else - ht->table = vzalloc(array_size(size, sizeof(*ht->table))); - if (!ht->table) { - DRM_ERROR("Out of memory for hash table\n"); - return -ENOMEM; - } - return 0; -} - -void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key) -{ - struct drm_hash_item *entry; - struct hlist_head *h_list; - unsigned int hashed_key; - int count = 0; - - hashed_key = hash_long(key, ht->order); - DRM_DEBUG("Key is 0x%08lx, Hashed key is 0x%08x\n", key, hashed_key); - h_list = &ht->table[hashed_key]; - hlist_for_each_entry(entry, h_list, head) - DRM_DEBUG("count %d, key: 0x%08lx\n", count++, entry->key); -} - -static struct hlist_node *drm_ht_find_key(struct drm_open_hash *ht, - unsigned long key) -{ - struct drm_hash_item *entry; - struct hlist_head *h_list; - unsigned int hashed_key; - - hashed_key = hash_long(key, ht->order); - h_list = &ht->table[hashed_key]; - hlist_for_each_entry(entry, h_list, head) { - if (entry->key == key) - return &entry->head; - if (entry->key > key) - break; - } - return NULL; -} - -static struct hlist_node *drm_ht_find_key_rcu(struct drm_open_hash *ht, - unsigned long key) -{ - struct drm_hash_item *entry; - struct hlist_head *h_list; - unsigned int hashed_key; - - hashed_key = hash_long(key, ht->order); - h_list = &ht->table[hashed_key]; - hlist_for_each_entry_rcu(entry, h_list, head) { - if (entry->key == key) - return &entry->head; - if (entry->key > key) - break; - } - return NULL; -} - -int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item) -{ - struct drm_hash_item *entry; - struct hlist_head *h_list; - struct hlist_node *parent; - unsigned int hashed_key; - unsigned long key = item->key; - - hashed_key = hash_long(key, ht->order); - h_list = &ht->table[hashed_key]; - parent = NULL; - hlist_for_each_entry(entry, h_list, head) { - if (entry->key == key) - return -EINVAL; - if (entry->key > key) - break; - parent = &entry->head; - } - if (parent) { - hlist_add_behind_rcu(&item->head, parent); - } else { - hlist_add_head_rcu(&item->head, h_list); - } - return 0; -} - -/* - * Just insert an item and return any "bits" bit key that hasn't been - * used before. - */ -int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item, - unsigned long seed, int bits, int shift, - unsigned long add) -{ - int ret; - unsigned long mask = (1UL << bits) - 1; - unsigned long first, unshifted_key; - - unshifted_key = hash_long(seed, bits); - first = unshifted_key; - do { - item->key = (unshifted_key << shift) + add; - ret = drm_ht_insert_item(ht, item); - if (ret) - unshifted_key = (unshifted_key + 1) & mask; - } while(ret && (unshifted_key != first)); - - if (ret) { - DRM_ERROR("Available key bit space exhausted\n"); - return -EINVAL; - } - return 0; -} - -int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, - struct drm_hash_item **item) -{ - struct hlist_node *list; - - list = drm_ht_find_key_rcu(ht, key); - if (!list) - return -EINVAL; - - *item = hlist_entry(list, struct drm_hash_item, head); - return 0; -} - -int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key) -{ - struct hlist_node *list; - - list = drm_ht_find_key(ht, key); - if (list) { - hlist_del_init_rcu(list); - return 0; - } - return -EINVAL; -} - -int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item) -{ - hlist_del_init_rcu(&item->head); - return 0; -} - -void drm_ht_remove(struct drm_open_hash *ht) -{ - if (ht->table) { - kvfree(ht->table); - ht->table = NULL; - } -} diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h index fa08a313127e..8e4faf0a28e6 100644 --- a/drivers/gpu/drm/drm_internal.h +++ b/drivers/gpu/drm/drm_internal.h @@ -121,11 +121,6 @@ int drm_wait_vblank_ioctl(struct drm_device *dev, void *data, /* drm_irq.c */ /* IOCTLS */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_legacy_irq_control(struct drm_device *dev, void *data, - struct drm_file *file_priv); -#endif - int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c deleted file mode 100644 index d327638e15ee..000000000000 --- a/drivers/gpu/drm/drm_irq.c +++ /dev/null @@ -1,204 +0,0 @@ -/* - * drm_irq.c IRQ and vblank support - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * Created: Fri Mar 19 14:30:16 1999 by faith@valinux.com - * - * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include -#include /* For task queue support */ -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "drm_internal.h" - -static int drm_legacy_irq_install(struct drm_device *dev, int irq) -{ - int ret; - unsigned long sh_flags = 0; - - if (irq == 0) - return -EINVAL; - - if (dev->irq_enabled) - return -EBUSY; - dev->irq_enabled = true; - - DRM_DEBUG("irq=%d\n", irq); - - /* Before installing handler */ - if (dev->driver->irq_preinstall) - dev->driver->irq_preinstall(dev); - - /* PCI devices require shared interrupts. */ - if (dev_is_pci(dev->dev)) - sh_flags = IRQF_SHARED; - - ret = request_irq(irq, dev->driver->irq_handler, - sh_flags, dev->driver->name, dev); - - if (ret < 0) { - dev->irq_enabled = false; - return ret; - } - - /* After installing handler */ - if (dev->driver->irq_postinstall) - ret = dev->driver->irq_postinstall(dev); - - if (ret < 0) { - dev->irq_enabled = false; - if (drm_core_check_feature(dev, DRIVER_LEGACY)) - vga_client_unregister(to_pci_dev(dev->dev)); - free_irq(irq, dev); - } else { - dev->irq = irq; - } - - return ret; -} - -int drm_legacy_irq_uninstall(struct drm_device *dev) -{ - unsigned long irqflags; - bool irq_enabled; - int i; - - irq_enabled = dev->irq_enabled; - dev->irq_enabled = false; - - /* - * Wake up any waiters so they don't hang. This is just to paper over - * issues for UMS drivers which aren't in full control of their - * vblank/irq handling. KMS drivers must ensure that vblanks are all - * disabled when uninstalling the irq handler. - */ - if (drm_dev_has_vblank(dev)) { - spin_lock_irqsave(&dev->vbl_lock, irqflags); - for (i = 0; i < dev->num_crtcs; i++) { - struct drm_vblank_crtc *vblank = &dev->vblank[i]; - - if (!vblank->enabled) - continue; - - WARN_ON(drm_core_check_feature(dev, DRIVER_MODESET)); - - drm_vblank_disable_and_save(dev, i); - wake_up(&vblank->queue); - } - spin_unlock_irqrestore(&dev->vbl_lock, irqflags); - } - - if (!irq_enabled) - return -EINVAL; - - DRM_DEBUG("irq=%d\n", dev->irq); - - if (drm_core_check_feature(dev, DRIVER_LEGACY)) - vga_client_unregister(to_pci_dev(dev->dev)); - - if (dev->driver->irq_uninstall) - dev->driver->irq_uninstall(dev); - - free_irq(dev->irq, dev); - - return 0; -} -EXPORT_SYMBOL(drm_legacy_irq_uninstall); - -int drm_legacy_irq_control(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_control *ctl = data; - int ret = 0, irq; - struct pci_dev *pdev; - - /* if we haven't irq we fallback for compatibility reasons - - * this used to be a separate function in drm_dma.h - */ - - if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) - return 0; - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return 0; - /* UMS was only ever supported on pci devices. */ - if (WARN_ON(!dev_is_pci(dev->dev))) - return -EINVAL; - - switch (ctl->func) { - case DRM_INST_HANDLER: - pdev = to_pci_dev(dev->dev); - irq = pdev->irq; - - if (dev->if_version < DRM_IF_VERSION(1, 2) && - ctl->irq != irq) - return -EINVAL; - mutex_lock(&dev->struct_mutex); - ret = drm_legacy_irq_install(dev, irq); - mutex_unlock(&dev->struct_mutex); - - return ret; - case DRM_UNINST_HANDLER: - mutex_lock(&dev->struct_mutex); - ret = drm_legacy_irq_uninstall(dev); - mutex_unlock(&dev->struct_mutex); - - return ret; - default: - return -EINVAL; - } -} diff --git a/drivers/gpu/drm/drm_legacy.h b/drivers/gpu/drm/drm_legacy.h deleted file mode 100644 index 70c9dba114a6..000000000000 --- a/drivers/gpu/drm/drm_legacy.h +++ /dev/null @@ -1,290 +0,0 @@ -#ifndef __DRM_LEGACY_H__ -#define __DRM_LEGACY_H__ - -/* - * Copyright (c) 2014 David Herrmann - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * This file contains legacy interfaces that modern drm drivers - * should no longer be using. They cannot be removed as legacy - * drivers use them, and removing them are API breaks. - */ -#include - -#include -#include -#include - -struct agp_memory; -struct drm_buf_desc; -struct drm_device; -struct drm_file; -struct drm_hash_item; -struct drm_open_hash; - -/* - * Hash-table Support - */ - -#define drm_hash_entry(_ptr, _type, _member) container_of(_ptr, _type, _member) - -/* drm_hashtab.c */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_ht_create(struct drm_open_hash *ht, unsigned int order); -int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item); -int drm_ht_just_insert_please(struct drm_open_hash *ht, struct drm_hash_item *item, - unsigned long seed, int bits, int shift, - unsigned long add); -int drm_ht_find_item(struct drm_open_hash *ht, unsigned long key, struct drm_hash_item **item); - -void drm_ht_verbose_list(struct drm_open_hash *ht, unsigned long key); -int drm_ht_remove_key(struct drm_open_hash *ht, unsigned long key); -int drm_ht_remove_item(struct drm_open_hash *ht, struct drm_hash_item *item); -void drm_ht_remove(struct drm_open_hash *ht); -#endif - -/* - * RCU-safe interface - * - * The user of this API needs to make sure that two or more instances of the - * hash table manipulation functions are never run simultaneously. - * The lookup function drm_ht_find_item_rcu may, however, run simultaneously - * with any of the manipulation functions as long as it's called from within - * an RCU read-locked section. - */ -#define drm_ht_insert_item_rcu drm_ht_insert_item -#define drm_ht_just_insert_please_rcu drm_ht_just_insert_please -#define drm_ht_remove_key_rcu drm_ht_remove_key -#define drm_ht_remove_item_rcu drm_ht_remove_item -#define drm_ht_find_item_rcu drm_ht_find_item - -/* - * Generic DRM Contexts - */ - -#define DRM_KERNEL_CONTEXT 0 -#define DRM_RESERVED_CONTEXTS 1 - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_ctxbitmap_init(struct drm_device *dev); -void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev); -void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file); -#else -static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {} -static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {} -static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {} -#endif - -void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle); - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_switchctx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_newctx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f); - -int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f); -#endif - -/* - * Generic Buffer Management - */ - -#define DRM_MAP_HASH_OFFSET 0x10000000 - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -static inline int drm_legacy_create_map_hash(struct drm_device *dev) -{ - return drm_ht_create(&dev->map_hash, 12); -} - -static inline void drm_legacy_remove_map_hash(struct drm_device *dev) -{ - drm_ht_remove(&dev->map_hash); -} -#else -static inline int drm_legacy_create_map_hash(struct drm_device *dev) -{ - return 0; -} - -static inline void drm_legacy_remove_map_hash(struct drm_device *dev) {} -#endif - - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f); - -int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f); -#endif - -int __drm_legacy_infobufs(struct drm_device *, void *, int *, - int (*)(void *, int, struct drm_buf_entry *)); -int __drm_legacy_mapbufs(struct drm_device *, void *, int *, - void __user **, - int (*)(void *, int, unsigned long, struct drm_buf *), - struct drm_file *); - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_master_rmmaps(struct drm_device *dev, - struct drm_master *master); -void drm_legacy_rmmaps(struct drm_device *dev); -#else -static inline void drm_legacy_master_rmmaps(struct drm_device *dev, - struct drm_master *master) {} -static inline void drm_legacy_rmmaps(struct drm_device *dev) {} -#endif - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_vma_flush(struct drm_device *d); -#else -static inline void drm_legacy_vma_flush(struct drm_device *d) -{ - /* do nothing */ -} -#endif - -/* - * AGP Support - */ - -struct drm_agp_mem { - unsigned long handle; - struct agp_memory *memory; - unsigned long bound; - int pages; - struct list_head head; -}; - -/* drm_agpsupport.c */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP) -void drm_legacy_agp_clear(struct drm_device *dev); - -int drm_legacy_agp_acquire_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_release_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_enable_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_info_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_alloc_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_free_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_unbind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_agp_bind_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -#else -static inline void drm_legacy_agp_clear(struct drm_device *dev) {} -#endif - -/* drm_lock.c */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f); -int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f); -void drm_legacy_lock_release(struct drm_device *dev, struct file *filp); -#else -static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {} -#endif - -/* DMA support */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) -int drm_legacy_dma_setup(struct drm_device *dev); -void drm_legacy_dma_takedown(struct drm_device *dev); -#else -static inline int drm_legacy_dma_setup(struct drm_device *dev) -{ - return 0; -} -#endif - -void drm_legacy_free_buffer(struct drm_device *dev, - struct drm_buf * buf); -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_reclaim_buffers(struct drm_device *dev, - struct drm_file *filp); -#else -static inline void drm_legacy_reclaim_buffers(struct drm_device *dev, - struct drm_file *filp) {} -#endif - -/* Scatter Gather Support */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_sg_cleanup(struct drm_device *dev); -int drm_legacy_sg_alloc(struct drm_device *dev, void *data, - struct drm_file *file_priv); -int drm_legacy_sg_free(struct drm_device *dev, void *data, - struct drm_file *file_priv); -#endif - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_init_members(struct drm_device *dev); -void drm_legacy_destroy_members(struct drm_device *dev); -void drm_legacy_dev_reinit(struct drm_device *dev); -int drm_legacy_setup(struct drm_device * dev); -#else -static inline void drm_legacy_init_members(struct drm_device *dev) {} -static inline void drm_legacy_destroy_members(struct drm_device *dev) {} -static inline void drm_legacy_dev_reinit(struct drm_device *dev) {} -static inline int drm_legacy_setup(struct drm_device * dev) { return 0; } -#endif - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master); -#else -static inline void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) {} -#endif - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_master_legacy_init(struct drm_master *master); -#else -static inline void drm_master_legacy_init(struct drm_master *master) {} -#endif - -/* drm_pci.c */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_PCI) -int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, struct drm_file *file_priv); -void drm_legacy_pci_agp_destroy(struct drm_device *dev); -#else -static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - return -EINVAL; -} - -static inline void drm_legacy_pci_agp_destroy(struct drm_device *dev) {} -#endif - -#endif /* __DRM_LEGACY_H__ */ diff --git a/drivers/gpu/drm/drm_legacy_misc.c b/drivers/gpu/drm/drm_legacy_misc.c deleted file mode 100644 index d4c5434062d7..000000000000 --- a/drivers/gpu/drm/drm_legacy_misc.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * \file drm_legacy_misc.c - * Misc legacy support functions. - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include - -#include "drm_internal.h" -#include "drm_legacy.h" - -void drm_legacy_init_members(struct drm_device *dev) -{ - INIT_LIST_HEAD(&dev->ctxlist); - INIT_LIST_HEAD(&dev->vmalist); - INIT_LIST_HEAD(&dev->maplist); - spin_lock_init(&dev->buf_lock); - mutex_init(&dev->ctxlist_mutex); -} - -void drm_legacy_destroy_members(struct drm_device *dev) -{ - mutex_destroy(&dev->ctxlist_mutex); -} - -int drm_legacy_setup(struct drm_device * dev) -{ - int ret; - - if (dev->driver->firstopen && - drm_core_check_feature(dev, DRIVER_LEGACY)) { - ret = dev->driver->firstopen(dev); - if (ret != 0) - return ret; - } - - ret = drm_legacy_dma_setup(dev); - if (ret < 0) - return ret; - - - DRM_DEBUG("\n"); - return 0; -} - -void drm_legacy_dev_reinit(struct drm_device *dev) -{ - if (dev->irq_enabled) - drm_legacy_irq_uninstall(dev); - - mutex_lock(&dev->struct_mutex); - - drm_legacy_agp_clear(dev); - - drm_legacy_sg_cleanup(dev); - drm_legacy_vma_flush(dev); - drm_legacy_dma_takedown(dev); - - mutex_unlock(&dev->struct_mutex); - - dev->sigdata.lock = NULL; - - dev->context_flag = 0; - dev->last_context = 0; - dev->if_version = 0; - - DRM_DEBUG("lastclose completed\n"); -} - -void drm_master_legacy_init(struct drm_master *master) -{ - spin_lock_init(&master->lock.spinlock); - init_waitqueue_head(&master->lock.lock_queue); -} diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c deleted file mode 100644 index 1efbd5389d89..000000000000 --- a/drivers/gpu/drm/drm_lock.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * \file drm_lock.c - * IOCTLs for locking - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Created: Tue Feb 2 08:37:54 1999 by faith@valinux.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include - -#include -#include -#include -#include - -#include "drm_internal.h" -#include "drm_legacy.h" - -static int drm_lock_take(struct drm_lock_data *lock_data, unsigned int context); - -/* - * Take the heavyweight lock. - * - * \param lock lock pointer. - * \param context locking context. - * \return one if the lock is held, or zero otherwise. - * - * Attempt to mark the lock as held by the given context, via the \p cmpxchg instruction. - */ -static -int drm_lock_take(struct drm_lock_data *lock_data, - unsigned int context) -{ - unsigned int old, new, prev; - volatile unsigned int *lock = &lock_data->hw_lock->lock; - - spin_lock_bh(&lock_data->spinlock); - do { - old = *lock; - if (old & _DRM_LOCK_HELD) - new = old | _DRM_LOCK_CONT; - else { - new = context | _DRM_LOCK_HELD | - ((lock_data->user_waiters + lock_data->kernel_waiters > 1) ? - _DRM_LOCK_CONT : 0); - } - prev = cmpxchg(lock, old, new); - } while (prev != old); - spin_unlock_bh(&lock_data->spinlock); - - if (_DRM_LOCKING_CONTEXT(old) == context) { - if (old & _DRM_LOCK_HELD) { - if (context != DRM_KERNEL_CONTEXT) { - DRM_ERROR("%d holds heavyweight lock\n", - context); - } - return 0; - } - } - - if ((_DRM_LOCKING_CONTEXT(new)) == context && (new & _DRM_LOCK_HELD)) { - /* Have lock */ - return 1; - } - return 0; -} - -/* - * This takes a lock forcibly and hands it to context. Should ONLY be used - * inside *_unlock to give lock to kernel before calling *_dma_schedule. - * - * \param dev DRM device. - * \param lock lock pointer. - * \param context locking context. - * \return always one. - * - * Resets the lock file pointer. - * Marks the lock as held by the given context, via the \p cmpxchg instruction. - */ -static int drm_lock_transfer(struct drm_lock_data *lock_data, - unsigned int context) -{ - unsigned int old, new, prev; - volatile unsigned int *lock = &lock_data->hw_lock->lock; - - lock_data->file_priv = NULL; - do { - old = *lock; - new = context | _DRM_LOCK_HELD; - prev = cmpxchg(lock, old, new); - } while (prev != old); - return 1; -} - -static int drm_legacy_lock_free(struct drm_lock_data *lock_data, - unsigned int context) -{ - unsigned int old, new, prev; - volatile unsigned int *lock = &lock_data->hw_lock->lock; - - spin_lock_bh(&lock_data->spinlock); - if (lock_data->kernel_waiters != 0) { - drm_lock_transfer(lock_data, 0); - lock_data->idle_has_lock = 1; - spin_unlock_bh(&lock_data->spinlock); - return 1; - } - spin_unlock_bh(&lock_data->spinlock); - - do { - old = *lock; - new = _DRM_LOCKING_CONTEXT(old); - prev = cmpxchg(lock, old, new); - } while (prev != old); - - if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) { - DRM_ERROR("%d freed heavyweight lock held by %d\n", - context, _DRM_LOCKING_CONTEXT(old)); - return 1; - } - wake_up_interruptible(&lock_data->lock_queue); - return 0; -} - -/* - * Lock ioctl. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_lock structure. - * \return zero on success or negative number on failure. - * - * Add the current task to the lock wait queue, and attempt to take to lock. - */ -int drm_legacy_lock(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - DECLARE_WAITQUEUE(entry, current); - struct drm_lock *lock = data; - struct drm_master *master = file_priv->master; - int ret = 0; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - ++file_priv->lock_count; - - if (lock->context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - task_pid_nr(current), lock->context); - return -EINVAL; - } - - DRM_DEBUG("%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n", - lock->context, task_pid_nr(current), - master->lock.hw_lock ? master->lock.hw_lock->lock : -1, - lock->flags); - - add_wait_queue(&master->lock.lock_queue, &entry); - spin_lock_bh(&master->lock.spinlock); - master->lock.user_waiters++; - spin_unlock_bh(&master->lock.spinlock); - - for (;;) { - __set_current_state(TASK_INTERRUPTIBLE); - if (!master->lock.hw_lock) { - /* Device has been unregistered */ - send_sig(SIGTERM, current, 0); - ret = -EINTR; - break; - } - if (drm_lock_take(&master->lock, lock->context)) { - master->lock.file_priv = file_priv; - master->lock.lock_time = jiffies; - break; /* Got lock */ - } - - /* Contention */ - mutex_unlock(&drm_global_mutex); - schedule(); - mutex_lock(&drm_global_mutex); - if (signal_pending(current)) { - ret = -EINTR; - break; - } - } - spin_lock_bh(&master->lock.spinlock); - master->lock.user_waiters--; - spin_unlock_bh(&master->lock.spinlock); - __set_current_state(TASK_RUNNING); - remove_wait_queue(&master->lock.lock_queue, &entry); - - DRM_DEBUG("%d %s\n", lock->context, - ret ? "interrupted" : "has lock"); - if (ret) return ret; - - /* don't set the block all signals on the master process for now - * really probably not the correct answer but lets us debug xkb - * xserver for now */ - if (!drm_is_current_master(file_priv)) { - dev->sigdata.context = lock->context; - dev->sigdata.lock = master->lock.hw_lock; - } - - if (dev->driver->dma_quiescent && (lock->flags & _DRM_LOCK_QUIESCENT)) - { - if (dev->driver->dma_quiescent(dev)) { - DRM_DEBUG("%d waiting for DMA quiescent\n", - lock->context); - return -EBUSY; - } - } - - return 0; -} - -/* - * Unlock ioctl. - * - * \param inode device inode. - * \param file_priv DRM file private. - * \param cmd command. - * \param arg user argument, pointing to a drm_lock structure. - * \return zero on success or negative number on failure. - * - * Transfer and free the lock. - */ -int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_lock *lock = data; - struct drm_master *master = file_priv->master; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (lock->context == DRM_KERNEL_CONTEXT) { - DRM_ERROR("Process %d using kernel context %d\n", - task_pid_nr(current), lock->context); - return -EINVAL; - } - - if (drm_legacy_lock_free(&master->lock, lock->context)) { - /* FIXME: Should really bail out here. */ - } - - return 0; -} - -/* - * This function returns immediately and takes the hw lock - * with the kernel context if it is free, otherwise it gets the highest priority when and if - * it is eventually released. - * - * This guarantees that the kernel will _eventually_ have the lock _unless_ it is held - * by a blocked process. (In the latter case an explicit wait for the hardware lock would cause - * a deadlock, which is why the "idlelock" was invented). - * - * This should be sufficient to wait for GPU idle without - * having to worry about starvation. - */ -void drm_legacy_idlelock_take(struct drm_lock_data *lock_data) -{ - int ret; - - spin_lock_bh(&lock_data->spinlock); - lock_data->kernel_waiters++; - if (!lock_data->idle_has_lock) { - - spin_unlock_bh(&lock_data->spinlock); - ret = drm_lock_take(lock_data, DRM_KERNEL_CONTEXT); - spin_lock_bh(&lock_data->spinlock); - - if (ret == 1) - lock_data->idle_has_lock = 1; - } - spin_unlock_bh(&lock_data->spinlock); -} -EXPORT_SYMBOL(drm_legacy_idlelock_take); - -void drm_legacy_idlelock_release(struct drm_lock_data *lock_data) -{ - unsigned int old, prev; - volatile unsigned int *lock = &lock_data->hw_lock->lock; - - spin_lock_bh(&lock_data->spinlock); - if (--lock_data->kernel_waiters == 0) { - if (lock_data->idle_has_lock) { - do { - old = *lock; - prev = cmpxchg(lock, old, DRM_KERNEL_CONTEXT); - } while (prev != old); - wake_up_interruptible(&lock_data->lock_queue); - lock_data->idle_has_lock = 0; - } - } - spin_unlock_bh(&lock_data->spinlock); -} -EXPORT_SYMBOL(drm_legacy_idlelock_release); - -static int drm_legacy_i_have_hw_lock(struct drm_device *dev, - struct drm_file *file_priv) -{ - struct drm_master *master = file_priv->master; - - return (file_priv->lock_count && master->lock.hw_lock && - _DRM_LOCK_IS_HELD(master->lock.hw_lock->lock) && - master->lock.file_priv == file_priv); -} - -void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) -{ - struct drm_file *file_priv = filp->private_data; - - /* if the master has gone away we can't do anything with the lock */ - if (!dev->master) - return; - - if (drm_legacy_i_have_hw_lock(dev, file_priv)) { - DRM_DEBUG("File %p released, freeing lock for context %d\n", - filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock)); - drm_legacy_lock_free(&file_priv->master->lock, - _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock)); - } -} - -void drm_legacy_lock_master_cleanup(struct drm_device *dev, struct drm_master *master) -{ - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return; - - /* - * Since the master is disappearing, so is the - * possibility to lock. - */ - mutex_lock(&dev->struct_mutex); - if (master->lock.hw_lock) { - if (dev->sigdata.lock == master->lock.hw_lock) - dev->sigdata.lock = NULL; - master->lock.hw_lock = NULL; - master->lock.file_priv = NULL; - wake_up_interruptible_all(&master->lock.lock_queue); - } - mutex_unlock(&dev->struct_mutex); -} diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c deleted file mode 100644 index d2e1dccd8113..000000000000 --- a/drivers/gpu/drm/drm_memory.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * \file drm_memory.c - * Memory management wrappers for DRM - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Created: Thu Feb 4 14:00:34 1999 by faith@valinux.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include -#include - -#include -#include - -#include "drm_legacy.h" - -#if IS_ENABLED(CONFIG_AGP) - -#ifdef HAVE_PAGE_AGP -# include -#else -# ifdef __powerpc__ -# define PAGE_AGP pgprot_noncached_wc(PAGE_KERNEL) -# else -# define PAGE_AGP PAGE_KERNEL -# endif -#endif - -static void *agp_remap(unsigned long offset, unsigned long size, - struct drm_device *dev) -{ - unsigned long i, num_pages = - PAGE_ALIGN(size) / PAGE_SIZE; - struct drm_agp_mem *agpmem; - struct page **page_map; - struct page **phys_page_map; - void *addr; - - size = PAGE_ALIGN(size); - -#ifdef __alpha__ - offset -= dev->hose->mem_space->start; -#endif - - list_for_each_entry(agpmem, &dev->agp->memory, head) - if (agpmem->bound <= offset - && (agpmem->bound + (agpmem->pages << PAGE_SHIFT)) >= - (offset + size)) - break; - if (&agpmem->head == &dev->agp->memory) - return NULL; - - /* - * OK, we're mapping AGP space on a chipset/platform on which memory accesses by - * the CPU do not get remapped by the GART. We fix this by using the kernel's - * page-table instead (that's probably faster anyhow...). - */ - /* note: use vmalloc() because num_pages could be large... */ - page_map = vmalloc(array_size(num_pages, sizeof(struct page *))); - if (!page_map) - return NULL; - - phys_page_map = (agpmem->memory->pages + (offset - agpmem->bound) / PAGE_SIZE); - for (i = 0; i < num_pages; ++i) - page_map[i] = phys_page_map[i]; - addr = vmap(page_map, num_pages, VM_IOREMAP, PAGE_AGP); - vfree(page_map); - - return addr; -} - -#else /* CONFIG_AGP */ -static inline void *agp_remap(unsigned long offset, unsigned long size, - struct drm_device *dev) -{ - return NULL; -} - -#endif /* CONFIG_AGP */ - -void drm_legacy_ioremap(struct drm_local_map *map, struct drm_device *dev) -{ - if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) - map->handle = agp_remap(map->offset, map->size, dev); - else - map->handle = ioremap(map->offset, map->size); -} -EXPORT_SYMBOL(drm_legacy_ioremap); - -void drm_legacy_ioremap_wc(struct drm_local_map *map, struct drm_device *dev) -{ - if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) - map->handle = agp_remap(map->offset, map->size, dev); - else - map->handle = ioremap_wc(map->offset, map->size); -} -EXPORT_SYMBOL(drm_legacy_ioremap_wc); - -void drm_legacy_ioremapfree(struct drm_local_map *map, struct drm_device *dev) -{ - if (!map->handle || !map->size) - return; - - if (dev->agp && dev->agp->cant_use_aperture && map->type == _DRM_AGP) - vunmap(map->handle); - else - iounmap(map->handle); -} -EXPORT_SYMBOL(drm_legacy_ioremapfree); diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c index 67907dd42721..c585f1e8803e 100644 --- a/drivers/gpu/drm/drm_pci.c +++ b/drivers/gpu/drm/drm_pci.c @@ -35,13 +35,6 @@ #include #include "drm_internal.h" -#include "drm_legacy.h" - -#ifdef CONFIG_DRM_LEGACY -/* List of devices hanging off drivers with stealth attach. */ -static LIST_HEAD(legacy_dev_list); -static DEFINE_MUTEX(legacy_dev_list_lock); -#endif static int drm_get_pci_domain(struct drm_device *dev) { @@ -72,199 +65,3 @@ int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master) master->unique_len = strlen(master->unique); return 0; } - -#ifdef CONFIG_DRM_LEGACY - -static int drm_legacy_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p) -{ - struct pci_dev *pdev = to_pci_dev(dev->dev); - - if ((p->busnum >> 8) != drm_get_pci_domain(dev) || - (p->busnum & 0xff) != pdev->bus->number || - p->devnum != PCI_SLOT(pdev->devfn) || p->funcnum != PCI_FUNC(pdev->devfn)) - return -EINVAL; - - p->irq = pdev->irq; - - DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum, - p->irq); - return 0; -} - -/** - * drm_legacy_irq_by_busid - Get interrupt from bus ID - * @dev: DRM device - * @data: IOCTL parameter pointing to a drm_irq_busid structure - * @file_priv: DRM file private. - * - * Finds the PCI device with the specified bus id and gets its IRQ number. - * This IOCTL is deprecated, and will now return EINVAL for any busid not equal - * to that of the device that this DRM instance attached to. - * - * Return: 0 on success or a negative error code on failure. - */ -int drm_legacy_irq_by_busid(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_irq_busid *p = data; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - /* UMS was only ever support on PCI devices. */ - if (WARN_ON(!dev_is_pci(dev->dev))) - return -EINVAL; - - if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) - return -EOPNOTSUPP; - - return drm_legacy_pci_irq_by_busid(dev, p); -} - -void drm_legacy_pci_agp_destroy(struct drm_device *dev) -{ - if (dev->agp) { - arch_phys_wc_del(dev->agp->agp_mtrr); - drm_legacy_agp_clear(dev); - kfree(dev->agp); - dev->agp = NULL; - } -} - -static void drm_legacy_pci_agp_init(struct drm_device *dev) -{ - if (drm_core_check_feature(dev, DRIVER_USE_AGP)) { - if (pci_find_capability(to_pci_dev(dev->dev), PCI_CAP_ID_AGP)) - dev->agp = drm_legacy_agp_init(dev); - if (dev->agp) { - dev->agp->agp_mtrr = arch_phys_wc_add( - dev->agp->agp_info.aper_base, - dev->agp->agp_info.aper_size * - 1024 * 1024); - } - } -} - -static int drm_legacy_get_pci_dev(struct pci_dev *pdev, - const struct pci_device_id *ent, - const struct drm_driver *driver) -{ - struct drm_device *dev; - int ret; - - DRM_DEBUG("\n"); - - dev = drm_dev_alloc(driver, &pdev->dev); - if (IS_ERR(dev)) - return PTR_ERR(dev); - - ret = pci_enable_device(pdev); - if (ret) - goto err_free; - -#ifdef __alpha__ - dev->hose = pdev->sysdata; -#endif - - drm_legacy_pci_agp_init(dev); - - ret = drm_dev_register(dev, ent->driver_data); - if (ret) - goto err_agp; - - if (drm_core_check_feature(dev, DRIVER_LEGACY)) { - mutex_lock(&legacy_dev_list_lock); - list_add_tail(&dev->legacy_dev_list, &legacy_dev_list); - mutex_unlock(&legacy_dev_list_lock); - } - - return 0; - -err_agp: - drm_legacy_pci_agp_destroy(dev); - pci_disable_device(pdev); -err_free: - drm_dev_put(dev); - return ret; -} - -/** - * drm_legacy_pci_init - shadow-attach a legacy DRM PCI driver - * @driver: DRM device driver - * @pdriver: PCI device driver - * - * This is only used by legacy dri1 drivers and deprecated. - * - * Return: 0 on success or a negative error code on failure. - */ -int drm_legacy_pci_init(const struct drm_driver *driver, - struct pci_driver *pdriver) -{ - struct pci_dev *pdev = NULL; - const struct pci_device_id *pid; - int i; - - DRM_DEBUG("\n"); - - if (WARN_ON(!(driver->driver_features & DRIVER_LEGACY))) - return -EINVAL; - - /* If not using KMS, fall back to stealth mode manual scanning. */ - for (i = 0; pdriver->id_table[i].vendor != 0; i++) { - pid = &pdriver->id_table[i]; - - /* Loop around setting up a DRM device for each PCI device - * matching our ID and device class. If we had the internal - * function that pci_get_subsys and pci_get_class used, we'd - * be able to just pass pid in instead of doing a two-stage - * thing. - */ - pdev = NULL; - while ((pdev = - pci_get_subsys(pid->vendor, pid->device, pid->subvendor, - pid->subdevice, pdev)) != NULL) { - if ((pdev->class & pid->class_mask) != pid->class) - continue; - - /* stealth mode requires a manual probe */ - pci_dev_get(pdev); - drm_legacy_get_pci_dev(pdev, pid, driver); - } - } - return 0; -} -EXPORT_SYMBOL(drm_legacy_pci_init); - -/** - * drm_legacy_pci_exit - unregister shadow-attach legacy DRM driver - * @driver: DRM device driver - * @pdriver: PCI device driver - * - * Unregister a DRM driver shadow-attached through drm_legacy_pci_init(). This - * is deprecated and only used by dri1 drivers. - */ -void drm_legacy_pci_exit(const struct drm_driver *driver, - struct pci_driver *pdriver) -{ - struct drm_device *dev, *tmp; - - DRM_DEBUG("\n"); - - if (!(driver->driver_features & DRIVER_LEGACY)) { - WARN_ON(1); - } else { - mutex_lock(&legacy_dev_list_lock); - list_for_each_entry_safe(dev, tmp, &legacy_dev_list, - legacy_dev_list) { - if (dev->driver == driver) { - list_del(&dev->legacy_dev_list); - drm_put_dev(dev); - } - } - mutex_unlock(&legacy_dev_list_lock); - } - DRM_INFO("Module unloaded\n"); -} -EXPORT_SYMBOL(drm_legacy_pci_exit); - -#endif diff --git a/drivers/gpu/drm/drm_scatter.c b/drivers/gpu/drm/drm_scatter.c deleted file mode 100644 index f4e6184d1877..000000000000 --- a/drivers/gpu/drm/drm_scatter.c +++ /dev/null @@ -1,220 +0,0 @@ -/* - * \file drm_scatter.c - * IOCTLs to manage scatter/gather memory - * - * \author Gareth Hughes - */ - -/* - * Created: Mon Dec 18 23:20:54 2000 by gareth@valinux.com - * - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include - -#include -#include -#include - -#include "drm_legacy.h" - -#define DEBUG_SCATTER 0 - -static void drm_sg_cleanup(struct drm_sg_mem * entry) -{ - struct page *page; - int i; - - for (i = 0; i < entry->pages; i++) { - page = entry->pagelist[i]; - if (page) - ClearPageReserved(page); - } - - vfree(entry->virtual); - - kfree(entry->busaddr); - kfree(entry->pagelist); - kfree(entry); -} - -void drm_legacy_sg_cleanup(struct drm_device *dev) -{ - if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && - drm_core_check_feature(dev, DRIVER_LEGACY)) { - drm_sg_cleanup(dev->sg); - dev->sg = NULL; - } -} -#ifdef _LP64 -# define ScatterHandle(x) (unsigned int)((x >> 32) + (x & ((1L << 32) - 1))) -#else -# define ScatterHandle(x) (unsigned int)(x) -#endif - -int drm_legacy_sg_alloc(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_scatter_gather *request = data; - struct drm_sg_mem *entry; - unsigned long pages, i, j; - - DRM_DEBUG("\n"); - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_SG)) - return -EOPNOTSUPP; - - if (request->size > SIZE_MAX - PAGE_SIZE) - return -EINVAL; - - if (dev->sg) - return -EINVAL; - - entry = kzalloc(sizeof(*entry), GFP_KERNEL); - if (!entry) - return -ENOMEM; - - pages = (request->size + PAGE_SIZE - 1) / PAGE_SIZE; - DRM_DEBUG("size=%ld pages=%ld\n", request->size, pages); - - entry->pages = pages; - entry->pagelist = kcalloc(pages, sizeof(*entry->pagelist), GFP_KERNEL); - if (!entry->pagelist) { - kfree(entry); - return -ENOMEM; - } - - entry->busaddr = kcalloc(pages, sizeof(*entry->busaddr), GFP_KERNEL); - if (!entry->busaddr) { - kfree(entry->pagelist); - kfree(entry); - return -ENOMEM; - } - - entry->virtual = vmalloc_32(pages << PAGE_SHIFT); - if (!entry->virtual) { - kfree(entry->busaddr); - kfree(entry->pagelist); - kfree(entry); - return -ENOMEM; - } - - /* This also forces the mapping of COW pages, so our page list - * will be valid. Please don't remove it... - */ - memset(entry->virtual, 0, pages << PAGE_SHIFT); - - entry->handle = ScatterHandle((unsigned long)entry->virtual); - - DRM_DEBUG("handle = %08lx\n", entry->handle); - DRM_DEBUG("virtual = %p\n", entry->virtual); - - for (i = (unsigned long)entry->virtual, j = 0; j < pages; - i += PAGE_SIZE, j++) { - entry->pagelist[j] = vmalloc_to_page((void *)i); - if (!entry->pagelist[j]) - goto failed; - SetPageReserved(entry->pagelist[j]); - } - - request->handle = entry->handle; - - dev->sg = entry; - -#if DEBUG_SCATTER - /* Verify that each page points to its virtual address, and vice - * versa. - */ - { - int error = 0; - - for (i = 0; i < pages; i++) { - unsigned long *tmp; - - tmp = page_address(entry->pagelist[i]); - for (j = 0; - j < PAGE_SIZE / sizeof(unsigned long); - j++, tmp++) { - *tmp = 0xcafebabe; - } - tmp = (unsigned long *)((u8 *) entry->virtual + - (PAGE_SIZE * i)); - for (j = 0; - j < PAGE_SIZE / sizeof(unsigned long); - j++, tmp++) { - if (*tmp != 0xcafebabe && error == 0) { - error = 1; - DRM_ERROR("Scatter allocation error, " - "pagelist does not match " - "virtual mapping\n"); - } - } - tmp = page_address(entry->pagelist[i]); - for (j = 0; - j < PAGE_SIZE / sizeof(unsigned long); - j++, tmp++) { - *tmp = 0; - } - } - if (error == 0) - DRM_ERROR("Scatter allocation matches pagelist\n"); - } -#endif - - return 0; - - failed: - drm_sg_cleanup(entry); - return -ENOMEM; -} - -int drm_legacy_sg_free(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_scatter_gather *request = data; - struct drm_sg_mem *entry; - - if (!drm_core_check_feature(dev, DRIVER_LEGACY)) - return -EOPNOTSUPP; - - if (!drm_core_check_feature(dev, DRIVER_SG)) - return -EOPNOTSUPP; - - entry = dev->sg; - dev->sg = NULL; - - if (!entry || entry->handle != request->handle) - return -EINVAL; - - DRM_DEBUG("virtual = %p\n", entry->virtual); - - drm_sg_cleanup(entry); - - return 0; -} diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c deleted file mode 100644 index 87c9fe55dec7..000000000000 --- a/drivers/gpu/drm/drm_vm.c +++ /dev/null @@ -1,665 +0,0 @@ -/* - * \file drm_vm.c - * Memory mapping for DRM - * - * \author Rickard E. (Rik) Faith - * \author Gareth Hughes - */ - -/* - * Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include -#include -#include -#include -#include - -#if defined(__ia64__) -#include -#include -#endif -#include - -#include -#include -#include -#include -#include - -#include "drm_internal.h" -#include "drm_legacy.h" - -struct drm_vma_entry { - struct list_head head; - struct vm_area_struct *vma; - pid_t pid; -}; - -static void drm_vm_open(struct vm_area_struct *vma); -static void drm_vm_close(struct vm_area_struct *vma); - -static pgprot_t drm_io_prot(struct drm_local_map *map, - struct vm_area_struct *vma) -{ - pgprot_t tmp = vm_get_page_prot(vma->vm_flags); - -#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) || \ - defined(__mips__) || defined(__loongarch__) - if (map->type == _DRM_REGISTERS && !(map->flags & _DRM_WRITE_COMBINING)) - tmp = pgprot_noncached(tmp); - else - tmp = pgprot_writecombine(tmp); -#elif defined(__ia64__) - if (efi_range_is_wc(vma->vm_start, vma->vm_end - - vma->vm_start)) - tmp = pgprot_writecombine(tmp); - else - tmp = pgprot_noncached(tmp); -#elif defined(__sparc__) || defined(__arm__) - tmp = pgprot_noncached(tmp); -#endif - return tmp; -} - -static pgprot_t drm_dma_prot(uint32_t map_type, struct vm_area_struct *vma) -{ - pgprot_t tmp = vm_get_page_prot(vma->vm_flags); - -#if defined(__powerpc__) && defined(CONFIG_NOT_COHERENT_CACHE) - tmp = pgprot_noncached_wc(tmp); -#endif - return tmp; -} - -/* - * \c fault method for AGP virtual memory. - * - * \param vma virtual memory area. - * \param address access address. - * \return pointer to the page structure. - * - * Find the right map and if it's AGP memory find the real physical page to - * map, get the page, increment the use count and return it. - */ -#if IS_ENABLED(CONFIG_AGP) -static vm_fault_t drm_vm_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_local_map *map = NULL; - struct drm_map_list *r_list; - struct drm_hash_item *hash; - - /* - * Find the right map - */ - if (!dev->agp) - goto vm_fault_error; - - if (!dev->agp || !dev->agp->cant_use_aperture) - goto vm_fault_error; - - if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) - goto vm_fault_error; - - r_list = drm_hash_entry(hash, struct drm_map_list, hash); - map = r_list->map; - - if (map && map->type == _DRM_AGP) { - /* - * Using vm_pgoff as a selector forces us to use this unusual - * addressing scheme. - */ - resource_size_t offset = vmf->address - vma->vm_start; - resource_size_t baddr = map->offset + offset; - struct drm_agp_mem *agpmem; - struct page *page; - -#ifdef __alpha__ - /* - * Adjust to a bus-relative address - */ - baddr -= dev->hose->mem_space->start; -#endif - - /* - * It's AGP memory - find the real physical page to map - */ - list_for_each_entry(agpmem, &dev->agp->memory, head) { - if (agpmem->bound <= baddr && - agpmem->bound + agpmem->pages * PAGE_SIZE > baddr) - break; - } - - if (&agpmem->head == &dev->agp->memory) - goto vm_fault_error; - - /* - * Get the page, inc the use count, and return it - */ - offset = (baddr - agpmem->bound) >> PAGE_SHIFT; - page = agpmem->memory->pages[offset]; - get_page(page); - vmf->page = page; - - DRM_DEBUG - ("baddr = 0x%llx page = 0x%p, offset = 0x%llx, count=%d\n", - (unsigned long long)baddr, - agpmem->memory->pages[offset], - (unsigned long long)offset, - page_count(page)); - return 0; - } -vm_fault_error: - return VM_FAULT_SIGBUS; /* Disallow mremap */ -} -#else -static vm_fault_t drm_vm_fault(struct vm_fault *vmf) -{ - return VM_FAULT_SIGBUS; -} -#endif - -/* - * \c nopage method for shared virtual memory. - * - * \param vma virtual memory area. - * \param address access address. - * \return pointer to the page structure. - * - * Get the mapping, find the real physical page to map, get the page, and - * return it. - */ -static vm_fault_t drm_vm_shm_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct drm_local_map *map = vma->vm_private_data; - unsigned long offset; - unsigned long i; - struct page *page; - - if (!map) - return VM_FAULT_SIGBUS; /* Nothing allocated */ - - offset = vmf->address - vma->vm_start; - i = (unsigned long)map->handle + offset; - page = vmalloc_to_page((void *)i); - if (!page) - return VM_FAULT_SIGBUS; - get_page(page); - vmf->page = page; - - DRM_DEBUG("shm_fault 0x%lx\n", offset); - return 0; -} - -/* - * \c close method for shared virtual memory. - * - * \param vma virtual memory area. - * - * Deletes map information if we are the last - * person to close a mapping and it's not in the global maplist. - */ -static void drm_vm_shm_close(struct vm_area_struct *vma) -{ - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_vma_entry *pt, *temp; - struct drm_local_map *map; - struct drm_map_list *r_list; - int found_maps = 0; - - DRM_DEBUG("0x%08lx,0x%08lx\n", - vma->vm_start, vma->vm_end - vma->vm_start); - - map = vma->vm_private_data; - - mutex_lock(&dev->struct_mutex); - list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { - if (pt->vma->vm_private_data == map) - found_maps++; - if (pt->vma == vma) { - list_del(&pt->head); - kfree(pt); - } - } - - /* We were the only map that was found */ - if (found_maps == 1 && map->flags & _DRM_REMOVABLE) { - /* Check to see if we are in the maplist, if we are not, then - * we delete this mappings information. - */ - found_maps = 0; - list_for_each_entry(r_list, &dev->maplist, head) { - if (r_list->map == map) - found_maps++; - } - - if (!found_maps) { - switch (map->type) { - case _DRM_REGISTERS: - case _DRM_FRAME_BUFFER: - arch_phys_wc_del(map->mtrr); - iounmap(map->handle); - break; - case _DRM_SHM: - vfree(map->handle); - break; - case _DRM_AGP: - case _DRM_SCATTER_GATHER: - break; - case _DRM_CONSISTENT: - dma_free_coherent(dev->dev, - map->size, - map->handle, - map->offset); - break; - } - kfree(map); - } - } - mutex_unlock(&dev->struct_mutex); -} - -/* - * \c fault method for DMA virtual memory. - * - * \param address access address. - * \return pointer to the page structure. - * - * Determine the page number from the page offset and get it from drm_device_dma::pagelist. - */ -static vm_fault_t drm_vm_dma_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_device_dma *dma = dev->dma; - unsigned long offset; - unsigned long page_nr; - struct page *page; - - if (!dma) - return VM_FAULT_SIGBUS; /* Error */ - if (!dma->pagelist) - return VM_FAULT_SIGBUS; /* Nothing allocated */ - - offset = vmf->address - vma->vm_start; - /* vm_[pg]off[set] should be 0 */ - page_nr = offset >> PAGE_SHIFT; /* page_nr could just be vmf->pgoff */ - page = virt_to_page((void *)dma->pagelist[page_nr]); - - get_page(page); - vmf->page = page; - - DRM_DEBUG("dma_fault 0x%lx (page %lu)\n", offset, page_nr); - return 0; -} - -/* - * \c fault method for scatter-gather virtual memory. - * - * \param address access address. - * \return pointer to the page structure. - * - * Determine the map offset from the page offset and get it from drm_sg_mem::pagelist. - */ -static vm_fault_t drm_vm_sg_fault(struct vm_fault *vmf) -{ - struct vm_area_struct *vma = vmf->vma; - struct drm_local_map *map = vma->vm_private_data; - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_sg_mem *entry = dev->sg; - unsigned long offset; - unsigned long map_offset; - unsigned long page_offset; - struct page *page; - - if (!entry) - return VM_FAULT_SIGBUS; /* Error */ - if (!entry->pagelist) - return VM_FAULT_SIGBUS; /* Nothing allocated */ - - offset = vmf->address - vma->vm_start; - map_offset = map->offset - (unsigned long)dev->sg->virtual; - page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT); - page = entry->pagelist[page_offset]; - get_page(page); - vmf->page = page; - - return 0; -} - -/** AGP virtual memory operations */ -static const struct vm_operations_struct drm_vm_ops = { - .fault = drm_vm_fault, - .open = drm_vm_open, - .close = drm_vm_close, -}; - -/** Shared virtual memory operations */ -static const struct vm_operations_struct drm_vm_shm_ops = { - .fault = drm_vm_shm_fault, - .open = drm_vm_open, - .close = drm_vm_shm_close, -}; - -/** DMA virtual memory operations */ -static const struct vm_operations_struct drm_vm_dma_ops = { - .fault = drm_vm_dma_fault, - .open = drm_vm_open, - .close = drm_vm_close, -}; - -/** Scatter-gather virtual memory operations */ -static const struct vm_operations_struct drm_vm_sg_ops = { - .fault = drm_vm_sg_fault, - .open = drm_vm_open, - .close = drm_vm_close, -}; - -static void drm_vm_open_locked(struct drm_device *dev, - struct vm_area_struct *vma) -{ - struct drm_vma_entry *vma_entry; - - DRM_DEBUG("0x%08lx,0x%08lx\n", - vma->vm_start, vma->vm_end - vma->vm_start); - - vma_entry = kmalloc(sizeof(*vma_entry), GFP_KERNEL); - if (vma_entry) { - vma_entry->vma = vma; - vma_entry->pid = current->pid; - list_add(&vma_entry->head, &dev->vmalist); - } -} - -static void drm_vm_open(struct vm_area_struct *vma) -{ - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - - mutex_lock(&dev->struct_mutex); - drm_vm_open_locked(dev, vma); - mutex_unlock(&dev->struct_mutex); -} - -static void drm_vm_close_locked(struct drm_device *dev, - struct vm_area_struct *vma) -{ - struct drm_vma_entry *pt, *temp; - - DRM_DEBUG("0x%08lx,0x%08lx\n", - vma->vm_start, vma->vm_end - vma->vm_start); - - list_for_each_entry_safe(pt, temp, &dev->vmalist, head) { - if (pt->vma == vma) { - list_del(&pt->head); - kfree(pt); - break; - } - } -} - -/* - * \c close method for all virtual memory types. - * - * \param vma virtual memory area. - * - * Search the \p vma private data entry in drm_device::vmalist, unlink it, and - * free it. - */ -static void drm_vm_close(struct vm_area_struct *vma) -{ - struct drm_file *priv = vma->vm_file->private_data; - struct drm_device *dev = priv->minor->dev; - - mutex_lock(&dev->struct_mutex); - drm_vm_close_locked(dev, vma); - mutex_unlock(&dev->struct_mutex); -} - -/* - * mmap DMA memory. - * - * \param file_priv DRM file private. - * \param vma virtual memory area. - * \return zero on success or a negative number on failure. - * - * Sets the virtual memory area operations structure to vm_dma_ops, the file - * pointer, and calls vm_open(). - */ -static int drm_mmap_dma(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *priv = filp->private_data; - struct drm_device *dev; - struct drm_device_dma *dma; - unsigned long length = vma->vm_end - vma->vm_start; - - dev = priv->minor->dev; - dma = dev->dma; - DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", - vma->vm_start, vma->vm_end, vma->vm_pgoff); - - /* Length must match exact page count */ - if (!dma || (length >> PAGE_SHIFT) != dma->page_count) { - return -EINVAL; - } - - if (!capable(CAP_SYS_ADMIN) && - (dma->flags & _DRM_DMA_USE_PCI_RO)) { - vm_flags_clear(vma, VM_WRITE | VM_MAYWRITE); -#if defined(__i386__) || defined(__x86_64__) - pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; -#else - /* Ye gads this is ugly. With more thought - we could move this up higher and use - `protection_map' instead. */ - vma->vm_page_prot = - __pgprot(pte_val - (pte_wrprotect - (__pte(pgprot_val(vma->vm_page_prot))))); -#endif - } - - vma->vm_ops = &drm_vm_dma_ops; - - vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); - - drm_vm_open_locked(dev, vma); - return 0; -} - -static resource_size_t drm_core_get_reg_ofs(struct drm_device *dev) -{ -#ifdef __alpha__ - return dev->hose->dense_mem_base; -#else - return 0; -#endif -} - -/* - * mmap DMA memory. - * - * \param file_priv DRM file private. - * \param vma virtual memory area. - * \return zero on success or a negative number on failure. - * - * If the virtual memory area has no offset associated with it then it's a DMA - * area, so calls mmap_dma(). Otherwise searches the map in drm_device::maplist, - * checks that the restricted flag is not set, sets the virtual memory operations - * according to the mapping type and remaps the pages. Finally sets the file - * pointer and calls vm_open(). - */ -static int drm_mmap_locked(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *priv = filp->private_data; - struct drm_device *dev = priv->minor->dev; - struct drm_local_map *map = NULL; - resource_size_t offset = 0; - struct drm_hash_item *hash; - - DRM_DEBUG("start = 0x%lx, end = 0x%lx, page offset = 0x%lx\n", - vma->vm_start, vma->vm_end, vma->vm_pgoff); - - if (!priv->authenticated) - return -EACCES; - - /* We check for "dma". On Apple's UniNorth, it's valid to have - * the AGP mapped at physical address 0 - * --BenH. - */ - if (!vma->vm_pgoff -#if IS_ENABLED(CONFIG_AGP) - && (!dev->agp - || dev->agp->agp_info.device->vendor != PCI_VENDOR_ID_APPLE) -#endif - ) - return drm_mmap_dma(filp, vma); - - if (drm_ht_find_item(&dev->map_hash, vma->vm_pgoff, &hash)) { - DRM_ERROR("Could not find map\n"); - return -EINVAL; - } - - map = drm_hash_entry(hash, struct drm_map_list, hash)->map; - if (!map || ((map->flags & _DRM_RESTRICTED) && !capable(CAP_SYS_ADMIN))) - return -EPERM; - - /* Check for valid size. */ - if (map->size < vma->vm_end - vma->vm_start) - return -EINVAL; - - if (!capable(CAP_SYS_ADMIN) && (map->flags & _DRM_READ_ONLY)) { - vm_flags_clear(vma, VM_WRITE | VM_MAYWRITE); -#if defined(__i386__) || defined(__x86_64__) - pgprot_val(vma->vm_page_prot) &= ~_PAGE_RW; -#else - /* Ye gads this is ugly. With more thought - we could move this up higher and use - `protection_map' instead. */ - vma->vm_page_prot = - __pgprot(pte_val - (pte_wrprotect - (__pte(pgprot_val(vma->vm_page_prot))))); -#endif - } - - switch (map->type) { -#if !defined(__arm__) - case _DRM_AGP: - if (dev->agp && dev->agp->cant_use_aperture) { - /* - * On some platforms we can't talk to bus dma address from the CPU, so for - * memory of type DRM_AGP, we'll deal with sorting out the real physical - * pages and mappings in fault() - */ -#if defined(__powerpc__) - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); -#endif - vma->vm_ops = &drm_vm_ops; - break; - } - fallthrough; /* to _DRM_FRAME_BUFFER... */ -#endif - case _DRM_FRAME_BUFFER: - case _DRM_REGISTERS: - offset = drm_core_get_reg_ofs(dev); - vma->vm_page_prot = drm_io_prot(map, vma); - if (io_remap_pfn_range(vma, vma->vm_start, - (map->offset + offset) >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot)) - return -EAGAIN; - DRM_DEBUG(" Type = %d; start = 0x%lx, end = 0x%lx," - " offset = 0x%llx\n", - map->type, - vma->vm_start, vma->vm_end, (unsigned long long)(map->offset + offset)); - - vma->vm_ops = &drm_vm_ops; - break; - case _DRM_CONSISTENT: - /* Consistent memory is really like shared memory. But - * it's allocated in a different way, so avoid fault */ - if (remap_pfn_range(vma, vma->vm_start, - page_to_pfn(virt_to_page(map->handle)), - vma->vm_end - vma->vm_start, vma->vm_page_prot)) - return -EAGAIN; - vma->vm_page_prot = drm_dma_prot(map->type, vma); - fallthrough; /* to _DRM_SHM */ - case _DRM_SHM: - vma->vm_ops = &drm_vm_shm_ops; - vma->vm_private_data = (void *)map; - break; - case _DRM_SCATTER_GATHER: - vma->vm_ops = &drm_vm_sg_ops; - vma->vm_private_data = (void *)map; - vma->vm_page_prot = drm_dma_prot(map->type, vma); - break; - default: - return -EINVAL; /* This should never happen. */ - } - vm_flags_set(vma, VM_DONTEXPAND | VM_DONTDUMP); - - drm_vm_open_locked(dev, vma); - return 0; -} - -int drm_legacy_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *priv = filp->private_data; - struct drm_device *dev = priv->minor->dev; - int ret; - - if (drm_dev_is_unplugged(dev)) - return -ENODEV; - - mutex_lock(&dev->struct_mutex); - ret = drm_mmap_locked(filp, vma); - mutex_unlock(&dev->struct_mutex); - - return ret; -} -EXPORT_SYMBOL(drm_legacy_mmap); - -#if IS_ENABLED(CONFIG_DRM_LEGACY) -void drm_legacy_vma_flush(struct drm_device *dev) -{ - struct drm_vma_entry *vma, *vma_temp; - - /* Clear vma list (only needed for legacy drivers) */ - list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { - list_del(&vma->head); - kfree(vma); - } -} -#endif diff --git a/include/drm/drm_auth.h b/include/drm/drm_auth.h index ba248ca8866f..50131383ed81 100644 --- a/include/drm/drm_auth.h +++ b/include/drm/drm_auth.h @@ -33,24 +33,6 @@ #include struct drm_file; -struct drm_hw_lock; - -/* - * Legacy DRI1 locking data structure. Only here instead of in drm_legacy.h for - * include ordering reasons. - * - * DO NOT USE. - */ -struct drm_lock_data { - struct drm_hw_lock *hw_lock; - struct drm_file *file_priv; - wait_queue_head_t lock_queue; - unsigned long lock_time; - spinlock_t spinlock; - uint32_t kernel_waiters; - uint32_t user_waiters; - int idle_has_lock; -}; /** * struct drm_master - drm master structure @@ -145,10 +127,6 @@ struct drm_master { * Protected by &drm_device.mode_config's &drm_mode_config.idr_mutex. */ struct idr lessee_idr; - /* private: */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) - struct drm_lock_data lock; -#endif }; struct drm_master *drm_master_get(struct drm_master *master); diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index c490977ee250..63767cf24371 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -6,7 +6,6 @@ #include #include -#include #include struct drm_driver; @@ -153,8 +152,8 @@ struct drm_device { * * Lock for others (not &drm_minor.master and &drm_file.is_master) * - * WARNING: - * Only drivers annotated with DRIVER_LEGACY should be using this. + * TODO: This lock used to be the BKL of the DRM subsystem. Move the + * lock into i915, which is the only remaining user. */ struct mutex struct_mutex; @@ -317,72 +316,6 @@ struct drm_device { * Root directory for debugfs files. */ struct dentry *debugfs_root; - - /* Everything below here is for legacy driver, never use! */ - /* private: */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) - /* List of devices per driver for stealth attach cleanup */ - struct list_head legacy_dev_list; - -#ifdef __alpha__ - /** @hose: PCI hose, only used on ALPHA platforms. */ - struct pci_controller *hose; -#endif - - /* AGP data */ - struct drm_agp_head *agp; - - /* Context handle management - linked list of context handles */ - struct list_head ctxlist; - - /* Context handle management - mutex for &ctxlist */ - struct mutex ctxlist_mutex; - - /* Context handle management */ - struct idr ctx_idr; - - /* Memory management - linked list of regions */ - struct list_head maplist; - - /* Memory management - user token hash table for maps */ - struct drm_open_hash map_hash; - - /* Context handle management - list of vmas (for debugging) */ - struct list_head vmalist; - - /* Optional pointer for DMA support */ - struct drm_device_dma *dma; - - /* Context swapping flag */ - __volatile__ long context_flag; - - /* Last current context */ - int last_context; - - /* Lock for &buf_use and a few other things. */ - spinlock_t buf_lock; - - /* Usage counter for buffers in use -- cannot alloc */ - int buf_use; - - /* Buffer allocation in progress */ - atomic_t buf_alloc; - - struct { - int context; - struct drm_hw_lock *lock; - } sigdata; - - struct drm_local_map *agp_buffer_map; - unsigned int agp_buffer_token; - - /* Scatter gather memory */ - struct drm_sg_mem *sg; - - /* IRQs */ - bool irq_enabled; - int irq; -#endif }; #endif diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h index ea36aa79dca2..8878260d7529 100644 --- a/include/drm/drm_drv.h +++ b/include/drm/drm_drv.h @@ -442,25 +442,6 @@ struct drm_driver { * some examples. */ const struct file_operations *fops; - -#ifdef CONFIG_DRM_LEGACY - /* Everything below here is for legacy driver, never use! */ - /* private: */ - - int (*firstopen) (struct drm_device *); - void (*preclose) (struct drm_device *, struct drm_file *file_priv); - int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); - int (*dma_quiescent) (struct drm_device *); - int (*context_dtor) (struct drm_device *dev, int context); - irqreturn_t (*irq_handler)(int irq, void *arg); - void (*irq_preinstall)(struct drm_device *dev); - int (*irq_postinstall)(struct drm_device *dev); - void (*irq_uninstall)(struct drm_device *dev); - u32 (*get_vblank_counter)(struct drm_device *dev, unsigned int pipe); - int (*enable_vblank)(struct drm_device *dev, unsigned int pipe); - void (*disable_vblank)(struct drm_device *dev, unsigned int pipe); - int dev_priv_size; -#endif }; void *__devm_drm_dev_alloc(struct device *parent, diff --git a/include/drm/drm_file.h b/include/drm/drm_file.h index 8f35dcea82d3..ab230d3af138 100644 --- a/include/drm/drm_file.h +++ b/include/drm/drm_file.h @@ -386,11 +386,6 @@ struct drm_file { * Per-file buffer caches used by the PRIME buffer sharing code. */ struct drm_prime_file_private prime; - - /* private: */ -#if IS_ENABLED(CONFIG_DRM_LEGACY) - unsigned long lock_count; /* DRI1 legacy lock count */ -#endif }; /** diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h deleted file mode 100644 index 0fc85418aad8..000000000000 --- a/include/drm/drm_legacy.h +++ /dev/null @@ -1,331 +0,0 @@ -#ifndef __DRM_DRM_LEGACY_H__ -#define __DRM_DRM_LEGACY_H__ -/* - * Legacy driver interfaces for the Direct Rendering Manager - * - * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. - * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. - * Copyright (c) 2009-2010, Code Aurora Forum. - * All rights reserved. - * Copyright © 2014 Intel Corporation - * Daniel Vetter - * - * Author: Rickard E. (Rik) Faith - * Author: Gareth Hughes - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include - -#include -#include - -struct drm_device; -struct drm_driver; -struct file; -struct pci_driver; - -/* - * Legacy Support for palateontologic DRM drivers - * - * If you add a new driver and it uses any of these functions or structures, - * you're doing it terribly wrong. - */ - -/* - * Hash-table Support - */ - -struct drm_hash_item { - struct hlist_node head; - unsigned long key; -}; - -struct drm_open_hash { - struct hlist_head *table; - u8 order; -}; - -/** - * DMA buffer. - */ -struct drm_buf { - int idx; /**< Index into master buflist */ - int total; /**< Buffer size */ - int order; /**< log-base-2(total) */ - int used; /**< Amount of buffer in use (for DMA) */ - unsigned long offset; /**< Byte offset (used internally) */ - void *address; /**< Address of buffer */ - unsigned long bus_address; /**< Bus address of buffer */ - struct drm_buf *next; /**< Kernel-only: used for free list */ - __volatile__ int waiting; /**< On kernel DMA queue */ - __volatile__ int pending; /**< On hardware DMA queue */ - struct drm_file *file_priv; /**< Private of holding file descr */ - int context; /**< Kernel queue for this buffer */ - int while_locked; /**< Dispatch this buffer while locked */ - enum { - DRM_LIST_NONE = 0, - DRM_LIST_FREE = 1, - DRM_LIST_WAIT = 2, - DRM_LIST_PEND = 3, - DRM_LIST_PRIO = 4, - DRM_LIST_RECLAIM = 5 - } list; /**< Which list we're on */ - - int dev_priv_size; /**< Size of buffer private storage */ - void *dev_private; /**< Per-buffer private storage */ -}; - -typedef struct drm_dma_handle { - dma_addr_t busaddr; - void *vaddr; - size_t size; -} drm_dma_handle_t; - -/** - * Buffer entry. There is one of this for each buffer size order. - */ -struct drm_buf_entry { - int buf_size; /**< size */ - int buf_count; /**< number of buffers */ - struct drm_buf *buflist; /**< buffer list */ - int seg_count; - int page_order; - struct drm_dma_handle **seglist; - - int low_mark; /**< Low water mark */ - int high_mark; /**< High water mark */ -}; - -/** - * DMA data. - */ -struct drm_device_dma { - - struct drm_buf_entry bufs[DRM_MAX_ORDER + 1]; /**< buffers, grouped by their size order */ - int buf_count; /**< total number of buffers */ - struct drm_buf **buflist; /**< Vector of pointers into drm_device_dma::bufs */ - int seg_count; - int page_count; /**< number of pages */ - unsigned long *pagelist; /**< page list */ - unsigned long byte_count; - enum { - _DRM_DMA_USE_AGP = 0x01, - _DRM_DMA_USE_SG = 0x02, - _DRM_DMA_USE_FB = 0x04, - _DRM_DMA_USE_PCI_RO = 0x08 - } flags; - -}; - -/** - * Scatter-gather memory. - */ -struct drm_sg_mem { - unsigned long handle; - void *virtual; - int pages; - struct page **pagelist; - dma_addr_t *busaddr; -}; - -/** - * Kernel side of a mapping - */ -struct drm_local_map { - dma_addr_t offset; /**< Requested physical address (0 for SAREA)*/ - unsigned long size; /**< Requested physical size (bytes) */ - enum drm_map_type type; /**< Type of memory to map */ - enum drm_map_flags flags; /**< Flags */ - void *handle; /**< User-space: "Handle" to pass to mmap() */ - /**< Kernel-space: kernel-virtual address */ - int mtrr; /**< MTRR slot used */ -}; - -typedef struct drm_local_map drm_local_map_t; - -/** - * Mappings list - */ -struct drm_map_list { - struct list_head head; /**< list head */ - struct drm_hash_item hash; - struct drm_local_map *map; /**< mapping */ - uint64_t user_token; - struct drm_master *master; -}; - -int drm_legacy_addmap(struct drm_device *d, resource_size_t offset, - unsigned int size, enum drm_map_type type, - enum drm_map_flags flags, struct drm_local_map **map_p); -struct drm_local_map *drm_legacy_findmap(struct drm_device *dev, unsigned int token); -void drm_legacy_rmmap(struct drm_device *d, struct drm_local_map *map); -int drm_legacy_rmmap_locked(struct drm_device *d, struct drm_local_map *map); -struct drm_local_map *drm_legacy_getsarea(struct drm_device *dev); -int drm_legacy_mmap(struct file *filp, struct vm_area_struct *vma); - -int drm_legacy_addbufs_agp(struct drm_device *d, struct drm_buf_desc *req); -int drm_legacy_addbufs_pci(struct drm_device *d, struct drm_buf_desc *req); - -/** - * Test that the hardware lock is held by the caller, returning otherwise. - * - * \param dev DRM device. - * \param filp file pointer of the caller. - */ -#define LOCK_TEST_WITH_RETURN( dev, _file_priv ) \ -do { \ - if (!_DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock) || \ - _file_priv->master->lock.file_priv != _file_priv) { \ - DRM_ERROR( "%s called without lock held, held %d owner %p %p\n",\ - __func__, _DRM_LOCK_IS_HELD(_file_priv->master->lock.hw_lock->lock),\ - _file_priv->master->lock.file_priv, _file_priv); \ - return -EINVAL; \ - } \ -} while (0) - -void drm_legacy_idlelock_take(struct drm_lock_data *lock); -void drm_legacy_idlelock_release(struct drm_lock_data *lock); - -/* drm_irq.c */ -int drm_legacy_irq_uninstall(struct drm_device *dev); - -/* drm_pci.c */ - -#ifdef CONFIG_PCI - -int drm_legacy_pci_init(const struct drm_driver *driver, - struct pci_driver *pdriver); -void drm_legacy_pci_exit(const struct drm_driver *driver, - struct pci_driver *pdriver); - -#else - -static inline struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, - size_t size, size_t align) -{ - return NULL; -} - -static inline void drm_pci_free(struct drm_device *dev, - struct drm_dma_handle *dmah) -{ -} - -static inline int drm_legacy_pci_init(const struct drm_driver *driver, - struct pci_driver *pdriver) -{ - return -EINVAL; -} - -static inline void drm_legacy_pci_exit(const struct drm_driver *driver, - struct pci_driver *pdriver) -{ -} - -#endif - -/* - * AGP Support - */ - -struct drm_agp_head { - struct agp_kern_info agp_info; - struct list_head memory; - unsigned long mode; - struct agp_bridge_data *bridge; - int enabled; - int acquired; - unsigned long base; - int agp_mtrr; - int cant_use_aperture; - unsigned long page_mask; -}; - -#if IS_ENABLED(CONFIG_DRM_LEGACY) && IS_ENABLED(CONFIG_AGP) -struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev); -int drm_legacy_agp_acquire(struct drm_device *dev); -int drm_legacy_agp_release(struct drm_device *dev); -int drm_legacy_agp_enable(struct drm_device *dev, struct drm_agp_mode mode); -int drm_legacy_agp_info(struct drm_device *dev, struct drm_agp_info *info); -int drm_legacy_agp_alloc(struct drm_device *dev, struct drm_agp_buffer *request); -int drm_legacy_agp_free(struct drm_device *dev, struct drm_agp_buffer *request); -int drm_legacy_agp_unbind(struct drm_device *dev, struct drm_agp_binding *request); -int drm_legacy_agp_bind(struct drm_device *dev, struct drm_agp_binding *request); -#else -static inline struct drm_agp_head *drm_legacy_agp_init(struct drm_device *dev) -{ - return NULL; -} - -static inline int drm_legacy_agp_acquire(struct drm_device *dev) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_release(struct drm_device *dev) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_enable(struct drm_device *dev, - struct drm_agp_mode mode) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_info(struct drm_device *dev, - struct drm_agp_info *info) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_alloc(struct drm_device *dev, - struct drm_agp_buffer *request) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_free(struct drm_device *dev, - struct drm_agp_buffer *request) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_unbind(struct drm_device *dev, - struct drm_agp_binding *request) -{ - return -ENODEV; -} - -static inline int drm_legacy_agp_bind(struct drm_device *dev, - struct drm_agp_binding *request) -{ - return -ENODEV; -} -#endif - -/* drm_memory.c */ -void drm_legacy_ioremap(struct drm_local_map *map, struct drm_device *dev); -void drm_legacy_ioremap_wc(struct drm_local_map *map, struct drm_device *dev); -void drm_legacy_ioremapfree(struct drm_local_map *map, struct drm_device *dev); - -#endif /* __DRM_DRM_LEGACY_H__ */ -- cgit