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path: root/drivers/gpu/drm/nouveau/nouveau_fbcon.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fbcon.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_fbcon.c533
1 files changed, 0 insertions, 533 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
deleted file mode 100644
index 9352010030e9..000000000000
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ /dev/null
@@ -1,533 +0,0 @@
-/*
- * Copyright © 2007 David Airlie
- *
- * 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
- * THE AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * Authors:
- * David Airlie
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/sysrq.h>
-#include <linux/delay.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/screen_info.h>
-#include <linux/vga_switcheroo.h>
-#include <linux/console.h>
-
-#include <drm/drmP.h>
-#include <drm/drm_crtc.h>
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_fb_helper.h>
-
-#include "nouveau_drm.h"
-#include "nouveau_gem.h"
-#include "nouveau_bo.h"
-#include "nouveau_fbcon.h"
-#include "nouveau_chan.h"
-
-#include "nouveau_crtc.h"
-
-#include <core/client.h>
-#include <core/device.h>
-
-#include <subdev/fb.h>
-
-MODULE_PARM_DESC(nofbaccel, "Disable fbcon acceleration");
-static int nouveau_nofbaccel = 0;
-module_param_named(nofbaccel, nouveau_nofbaccel, int, 0400);
-
-static void
-nouveau_fbcon_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
-{
- struct nouveau_fbdev *fbcon = info->par;
- struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
- struct nouveau_device *device = nv_device(drm->device);
- int ret;
-
- if (info->state != FBINFO_STATE_RUNNING)
- return;
-
- ret = -ENODEV;
- if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
- mutex_trylock(&drm->client.mutex)) {
- if (device->card_type < NV_50)
- ret = nv04_fbcon_fillrect(info, rect);
- else
- if (device->card_type < NV_C0)
- ret = nv50_fbcon_fillrect(info, rect);
- else
- ret = nvc0_fbcon_fillrect(info, rect);
- mutex_unlock(&drm->client.mutex);
- }
-
- if (ret == 0)
- return;
-
- if (ret != -ENODEV)
- nouveau_fbcon_gpu_lockup(info);
- cfb_fillrect(info, rect);
-}
-
-static void
-nouveau_fbcon_copyarea(struct fb_info *info, const struct fb_copyarea *image)
-{
- struct nouveau_fbdev *fbcon = info->par;
- struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
- struct nouveau_device *device = nv_device(drm->device);
- int ret;
-
- if (info->state != FBINFO_STATE_RUNNING)
- return;
-
- ret = -ENODEV;
- if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
- mutex_trylock(&drm->client.mutex)) {
- if (device->card_type < NV_50)
- ret = nv04_fbcon_copyarea(info, image);
- else
- if (device->card_type < NV_C0)
- ret = nv50_fbcon_copyarea(info, image);
- else
- ret = nvc0_fbcon_copyarea(info, image);
- mutex_unlock(&drm->client.mutex);
- }
-
- if (ret == 0)
- return;
-
- if (ret != -ENODEV)
- nouveau_fbcon_gpu_lockup(info);
- cfb_copyarea(info, image);
-}
-
-static void
-nouveau_fbcon_imageblit(struct fb_info *info, const struct fb_image *image)
-{
- struct nouveau_fbdev *fbcon = info->par;
- struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
- struct nouveau_device *device = nv_device(drm->device);
- int ret;
-
- if (info->state != FBINFO_STATE_RUNNING)
- return;
-
- ret = -ENODEV;
- if (!in_interrupt() && !(info->flags & FBINFO_HWACCEL_DISABLED) &&
- mutex_trylock(&drm->client.mutex)) {
- if (device->card_type < NV_50)
- ret = nv04_fbcon_imageblit(info, image);
- else
- if (device->card_type < NV_C0)
- ret = nv50_fbcon_imageblit(info, image);
- else
- ret = nvc0_fbcon_imageblit(info, image);
- mutex_unlock(&drm->client.mutex);
- }
-
- if (ret == 0)
- return;
-
- if (ret != -ENODEV)
- nouveau_fbcon_gpu_lockup(info);
- cfb_imageblit(info, image);
-}
-
-static int
-nouveau_fbcon_sync(struct fb_info *info)
-{
- struct nouveau_fbdev *fbcon = info->par;
- struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
- struct nouveau_channel *chan = drm->channel;
- int ret;
-
- if (!chan || !chan->accel_done || in_interrupt() ||
- info->state != FBINFO_STATE_RUNNING ||
- info->flags & FBINFO_HWACCEL_DISABLED)
- return 0;
-
- if (!mutex_trylock(&drm->client.mutex))
- return 0;
-
- ret = nouveau_channel_idle(chan);
- mutex_unlock(&drm->client.mutex);
- if (ret) {
- nouveau_fbcon_gpu_lockup(info);
- return 0;
- }
-
- chan->accel_done = false;
- return 0;
-}
-
-static struct fb_ops nouveau_fbcon_ops = {
- .owner = THIS_MODULE,
- .fb_check_var = drm_fb_helper_check_var,
- .fb_set_par = drm_fb_helper_set_par,
- .fb_fillrect = nouveau_fbcon_fillrect,
- .fb_copyarea = nouveau_fbcon_copyarea,
- .fb_imageblit = nouveau_fbcon_imageblit,
- .fb_sync = nouveau_fbcon_sync,
- .fb_pan_display = drm_fb_helper_pan_display,
- .fb_blank = drm_fb_helper_blank,
- .fb_setcmap = drm_fb_helper_setcmap,
- .fb_debug_enter = drm_fb_helper_debug_enter,
- .fb_debug_leave = drm_fb_helper_debug_leave,
-};
-
-static struct fb_ops nouveau_fbcon_sw_ops = {
- .owner = THIS_MODULE,
- .fb_check_var = drm_fb_helper_check_var,
- .fb_set_par = drm_fb_helper_set_par,
- .fb_fillrect = cfb_fillrect,
- .fb_copyarea = cfb_copyarea,
- .fb_imageblit = cfb_imageblit,
- .fb_pan_display = drm_fb_helper_pan_display,
- .fb_blank = drm_fb_helper_blank,
- .fb_setcmap = drm_fb_helper_setcmap,
- .fb_debug_enter = drm_fb_helper_debug_enter,
- .fb_debug_leave = drm_fb_helper_debug_leave,
-};
-
-static void nouveau_fbcon_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
- u16 blue, int regno)
-{
- struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-
- nv_crtc->lut.r[regno] = red;
- nv_crtc->lut.g[regno] = green;
- nv_crtc->lut.b[regno] = blue;
-}
-
-static void nouveau_fbcon_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
- u16 *blue, int regno)
-{
- struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-
- *red = nv_crtc->lut.r[regno];
- *green = nv_crtc->lut.g[regno];
- *blue = nv_crtc->lut.b[regno];
-}
-
-static void
-nouveau_fbcon_zfill(struct drm_device *dev, struct nouveau_fbdev *fbcon)
-{
- struct fb_info *info = fbcon->helper.fbdev;
- struct fb_fillrect rect;
-
- /* Clear the entire fbcon. The drm will program every connector
- * with it's preferred mode. If the sizes differ, one display will
- * quite likely have garbage around the console.
- */
- rect.dx = rect.dy = 0;
- rect.width = info->var.xres_virtual;
- rect.height = info->var.yres_virtual;
- rect.color = 0;
- rect.rop = ROP_COPY;
- info->fbops->fb_fillrect(info, &rect);
-}
-
-static int
-nouveau_fbcon_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct nouveau_fbdev *fbcon = (struct nouveau_fbdev *)helper;
- struct drm_device *dev = fbcon->dev;
- struct nouveau_drm *drm = nouveau_drm(dev);
- struct nouveau_device *device = nv_device(drm->device);
- struct fb_info *info;
- struct drm_framebuffer *fb;
- struct nouveau_framebuffer *nouveau_fb;
- struct nouveau_channel *chan;
- struct nouveau_bo *nvbo;
- struct drm_mode_fb_cmd2 mode_cmd;
- struct pci_dev *pdev = dev->pdev;
- int size, ret;
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
-
- mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
- mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
-
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
-
- size = mode_cmd.pitches[0] * mode_cmd.height;
- size = roundup(size, PAGE_SIZE);
-
- ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
- 0, 0x0000, &nvbo);
- if (ret) {
- NV_ERROR(drm, "failed to allocate framebuffer\n");
- goto out;
- }
-
- ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM);
- if (ret) {
- NV_ERROR(drm, "failed to pin fb: %d\n", ret);
- goto out_unref;
- }
-
- ret = nouveau_bo_map(nvbo);
- if (ret) {
- NV_ERROR(drm, "failed to map fb: %d\n", ret);
- goto out_unpin;
- }
-
- chan = nouveau_nofbaccel ? NULL : drm->channel;
- if (chan && device->card_type >= NV_50) {
- ret = nouveau_bo_vma_add(nvbo, nv_client(chan->cli)->vm,
- &fbcon->nouveau_fb.vma);
- if (ret) {
- NV_ERROR(drm, "failed to map fb into chan: %d\n", ret);
- chan = NULL;
- }
- }
-
- mutex_lock(&dev->struct_mutex);
-
- info = framebuffer_alloc(0, &pdev->dev);
- if (!info) {
- ret = -ENOMEM;
- goto out_unlock;
- }
-
- ret = fb_alloc_cmap(&info->cmap, 256, 0);
- if (ret) {
- ret = -ENOMEM;
- framebuffer_release(info);
- goto out_unlock;
- }
-
- info->par = fbcon;
-
- nouveau_framebuffer_init(dev, &fbcon->nouveau_fb, &mode_cmd, nvbo);
-
- nouveau_fb = &fbcon->nouveau_fb;
- fb = &nouveau_fb->base;
-
- /* setup helper */
- fbcon->helper.fb = fb;
- fbcon->helper.fbdev = info;
-
- strcpy(info->fix.id, "nouveaufb");
- if (!chan)
- info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_DISABLED;
- else
- info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_COPYAREA |
- FBINFO_HWACCEL_FILLRECT |
- FBINFO_HWACCEL_IMAGEBLIT;
- info->flags |= FBINFO_CAN_FORCE_OUTPUT;
- info->fbops = &nouveau_fbcon_sw_ops;
- info->fix.smem_start = nvbo->bo.mem.bus.base +
- nvbo->bo.mem.bus.offset;
- info->fix.smem_len = size;
-
- info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
- info->screen_size = size;
-
- drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
- drm_fb_helper_fill_var(info, &fbcon->helper, sizes->fb_width, sizes->fb_height);
-
- /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
-
- mutex_unlock(&dev->struct_mutex);
-
- if (chan) {
- ret = -ENODEV;
- if (device->card_type < NV_50)
- ret = nv04_fbcon_accel_init(info);
- else
- if (device->card_type < NV_C0)
- ret = nv50_fbcon_accel_init(info);
- else
- ret = nvc0_fbcon_accel_init(info);
-
- if (ret == 0)
- info->fbops = &nouveau_fbcon_ops;
- }
-
- nouveau_fbcon_zfill(dev, fbcon);
-
- /* To allow resizeing without swapping buffers */
- NV_INFO(drm, "allocated %dx%d fb: 0x%lx, bo %p\n",
- nouveau_fb->base.width, nouveau_fb->base.height,
- nvbo->bo.offset, nvbo);
-
- vga_switcheroo_client_fb_set(dev->pdev, info);
- return 0;
-
-out_unlock:
- mutex_unlock(&dev->struct_mutex);
- if (chan)
- nouveau_bo_vma_del(nvbo, &fbcon->nouveau_fb.vma);
-out_unpin:
- nouveau_bo_unpin(nvbo);
-out_unref:
- nouveau_bo_ref(NULL, &nvbo);
-out:
- return ret;
-}
-
-void
-nouveau_fbcon_output_poll_changed(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- drm_fb_helper_hotplug_event(&drm->fbcon->helper);
-}
-
-static int
-nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
-{
- struct nouveau_framebuffer *nouveau_fb = &fbcon->nouveau_fb;
- struct fb_info *info;
-
- if (fbcon->helper.fbdev) {
- info = fbcon->helper.fbdev;
- unregister_framebuffer(info);
- if (info->cmap.len)
- fb_dealloc_cmap(&info->cmap);
- framebuffer_release(info);
- }
-
- if (nouveau_fb->nvbo) {
- nouveau_bo_unmap(nouveau_fb->nvbo);
- nouveau_bo_vma_del(nouveau_fb->nvbo, &nouveau_fb->vma);
- nouveau_bo_unpin(nouveau_fb->nvbo);
- drm_gem_object_unreference_unlocked(nouveau_fb->nvbo->gem);
- nouveau_fb->nvbo = NULL;
- }
- drm_fb_helper_fini(&fbcon->helper);
- drm_framebuffer_unregister_private(&nouveau_fb->base);
- drm_framebuffer_cleanup(&nouveau_fb->base);
- return 0;
-}
-
-void nouveau_fbcon_gpu_lockup(struct fb_info *info)
-{
- struct nouveau_fbdev *fbcon = info->par;
- struct nouveau_drm *drm = nouveau_drm(fbcon->dev);
-
- NV_ERROR(drm, "GPU lockup - switching to software fbcon\n");
- info->flags |= FBINFO_HWACCEL_DISABLED;
-}
-
-static struct drm_fb_helper_funcs nouveau_fbcon_helper_funcs = {
- .gamma_set = nouveau_fbcon_gamma_set,
- .gamma_get = nouveau_fbcon_gamma_get,
- .fb_probe = nouveau_fbcon_create,
-};
-
-
-int
-nouveau_fbcon_init(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- struct nouveau_fb *pfb = nouveau_fb(drm->device);
- struct nouveau_fbdev *fbcon;
- int preferred_bpp;
- int ret;
-
- if (!dev->mode_config.num_crtc)
- return 0;
-
- fbcon = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
- if (!fbcon)
- return -ENOMEM;
-
- fbcon->dev = dev;
- drm->fbcon = fbcon;
- fbcon->helper.funcs = &nouveau_fbcon_helper_funcs;
-
- ret = drm_fb_helper_init(dev, &fbcon->helper,
- dev->mode_config.num_crtc, 4);
- if (ret) {
- kfree(fbcon);
- return ret;
- }
-
- drm_fb_helper_single_add_all_connectors(&fbcon->helper);
-
- if (pfb->ram->size <= 32 * 1024 * 1024)
- preferred_bpp = 8;
- else
- if (pfb->ram->size <= 64 * 1024 * 1024)
- preferred_bpp = 16;
- else
- preferred_bpp = 32;
-
- /* disable all the possible outputs/crtcs before entering KMS mode */
- drm_helper_disable_unused_functions(dev);
-
- drm_fb_helper_initial_config(&fbcon->helper, preferred_bpp);
- return 0;
-}
-
-void
-nouveau_fbcon_fini(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
-
- if (!drm->fbcon)
- return;
-
- nouveau_fbcon_destroy(dev, drm->fbcon);
- kfree(drm->fbcon);
- drm->fbcon = NULL;
-}
-
-void nouveau_fbcon_save_disable_accel(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
-
- drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
- drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
-}
-
-void nouveau_fbcon_restore_accel(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
-}
-
-void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- console_lock();
- if (state == 0)
- nouveau_fbcon_save_disable_accel(dev);
- fb_set_suspend(drm->fbcon->helper.fbdev, state);
- if (state == 1)
- nouveau_fbcon_restore_accel(dev);
- console_unlock();
-}
-
-void nouveau_fbcon_zfill_all(struct drm_device *dev)
-{
- struct nouveau_drm *drm = nouveau_drm(dev);
- nouveau_fbcon_zfill(dev, drm->fbcon);
-}
generated by cgit (git 2.34.1) at 2025-12-25 22:40:36 +0000