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-rw-r--r--drivers/gpu/drm/Kconfig1
-rw-r--r--drivers/gpu/drm/Makefile1
-rw-r--r--drivers/gpu/drm/mgag200/Kconfig14
-rw-r--r--drivers/gpu/drm/mgag200/Makefile5
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_drv.c114
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_drv.h276
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_fb.c294
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_i2c.c156
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_main.c388
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_mode.c1533
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_reg.h661
-rw-r--r--drivers/gpu/drm/mgag200/mgag200_ttm.c452
12 files changed, 3895 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 9c6244c1fff6..8b23bd9d1659 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -189,3 +189,4 @@ source "drivers/gpu/drm/udl/Kconfig"
source "drivers/gpu/drm/ast/Kconfig"
+source "drivers/gpu/drm/mgag200/Kconfig"
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index fb3eac8402fe..52c9b5610ca2 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_DRM_RADEON)+= radeon/
obj-$(CONFIG_DRM_MGA) += mga/
obj-$(CONFIG_DRM_I810) += i810/
obj-$(CONFIG_DRM_I915) += i915/
+obj-$(CONFIG_DRM_MGAG200) += mgag200/
obj-$(CONFIG_DRM_SIS) += sis/
obj-$(CONFIG_DRM_SAVAGE)+= savage/
obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
diff --git a/drivers/gpu/drm/mgag200/Kconfig b/drivers/gpu/drm/mgag200/Kconfig
new file mode 100644
index 000000000000..ffffafa1d6d1
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/Kconfig
@@ -0,0 +1,14 @@
+config DRM_MGAG200
+ tristate "Kernel modesetting driver for MGA G200 server engines"
+ depends on DRM && PCI && EXPERIMENTAL
+ select FB_SYS_FILLRECT
+ select FB_SYS_COPYAREA
+ select FB_SYS_IMAGEBLIT
+ select DRM_KMS_HELPER
+ help
+ This is a KMS driver for the MGA G200 server chips, it
+ does not support the original MGA G200 or any of the desktop
+ chips. It requires 0.3.0 of the modesetting userspace driver,
+ and a version of mga driver that will fail on KMS enabled
+ devices.
+
diff --git a/drivers/gpu/drm/mgag200/Makefile b/drivers/gpu/drm/mgag200/Makefile
new file mode 100644
index 000000000000..7db592eedbf1
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/Makefile
@@ -0,0 +1,5 @@
+ccflags-y := -Iinclude/drm
+mgag200-y := mgag200_main.o mgag200_mode.o \
+ mgag200_drv.o mgag200_fb.o mgag200_i2c.o mgag200_ttm.o
+
+obj-$(CONFIG_DRM_MGAG200) += mgag200.o
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
new file mode 100644
index 000000000000..f03a636d769e
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -0,0 +1,114 @@
+/*
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Dave Airlie
+ */
+#include <linux/module.h>
+#include <linux/console.h>
+#include "drmP.h"
+#include "drm.h"
+
+#include "mgag200_drv.h"
+
+#include "drm_pciids.h"
+
+/*
+ * This is the generic driver code. This binds the driver to the drm core,
+ * which then performs further device association and calls our graphics init
+ * functions
+ */
+int mgag200_modeset = -1;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, mgag200_modeset, int, 0400);
+
+static struct drm_driver driver;
+
+static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
+ { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A },
+ { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
+ { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
+ { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
+ { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
+ { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
+ {0,}
+};
+
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+static int __devinit
+mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ return drm_get_pci_dev(pdev, ent, &driver);
+}
+
+static void mga_pci_remove(struct pci_dev *pdev)
+{
+ struct drm_device *dev = pci_get_drvdata(pdev);
+
+ drm_put_dev(dev);
+}
+
+static const struct file_operations mgag200_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = mgag200_mmap,
+ .poll = drm_poll,
+ .fasync = drm_fasync,
+ .read = drm_read,
+};
+
+static struct drm_driver driver = {
+ .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_USE_MTRR,
+ .load = mgag200_driver_load,
+ .unload = mgag200_driver_unload,
+ .fops = &mgag200_driver_fops,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+
+ .gem_init_object = mgag200_gem_init_object,
+ .gem_free_object = mgag200_gem_free_object,
+ .dumb_create = mgag200_dumb_create,
+ .dumb_map_offset = mgag200_dumb_mmap_offset,
+ .dumb_destroy = mgag200_dumb_destroy,
+};
+
+static struct pci_driver mgag200_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+ .probe = mga_pci_probe,
+ .remove = mga_pci_remove,
+};
+
+static int __init mgag200_init(void)
+{
+ if (vgacon_text_force() && mgag200_modeset == -1)
+ return -EINVAL;
+
+ if (mgag200_modeset == 0)
+ return -EINVAL;
+ return drm_pci_init(&driver, &mgag200_pci_driver);
+}
+
+static void __exit mgag200_exit(void)
+{
+ drm_pci_exit(&driver, &mgag200_pci_driver);
+}
+
+module_init(mgag200_init);
+module_exit(mgag200_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
new file mode 100644
index 000000000000..6f13b3563234
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -0,0 +1,276 @@
+/*
+ * Copyright 2010 Matt Turner.
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Matt Turner
+ * Dave Airlie
+ */
+#ifndef __MGAG200_DRV_H__
+#define __MGAG200_DRV_H__
+
+#include <video/vga.h>
+
+#include "drm/drm_fb_helper.h"
+#include "ttm/ttm_bo_api.h"
+#include "ttm/ttm_bo_driver.h"
+#include "ttm/ttm_placement.h"
+#include "ttm/ttm_memory.h"
+#include "ttm/ttm_module.h"
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+#include "mgag200_reg.h"
+
+#define DRIVER_AUTHOR "Matthew Garrett"
+
+#define DRIVER_NAME "mgag200"
+#define DRIVER_DESC "MGA G200 SE"
+#define DRIVER_DATE "20110418"
+
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+#define DRIVER_PATCHLEVEL 0
+
+#define MGAG200FB_CONN_LIMIT 1
+
+#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
+#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
+#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
+#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
+
+#define ATTR_INDEX 0x1fc0
+#define ATTR_DATA 0x1fc1
+
+#define WREG_ATTR(reg, v) \
+ do { \
+ RREG8(0x1fda); \
+ WREG8(ATTR_INDEX, reg); \
+ WREG8(ATTR_DATA, v); \
+ } while (0) \
+
+#define WREG_SEQ(reg, v) \
+ do { \
+ WREG8(MGAREG_SEQ_INDEX, reg); \
+ WREG8(MGAREG_SEQ_DATA, v); \
+ } while (0) \
+
+#define WREG_CRT(reg, v) \
+ do { \
+ WREG8(MGAREG_CRTC_INDEX, reg); \
+ WREG8(MGAREG_CRTC_DATA, v); \
+ } while (0) \
+
+
+#define WREG_ECRT(reg, v) \
+ do { \
+ WREG8(MGAREG_CRTCEXT_INDEX, reg); \
+ WREG8(MGAREG_CRTCEXT_DATA, v); \
+ } while (0) \
+
+#define GFX_INDEX 0x1fce
+#define GFX_DATA 0x1fcf
+
+#define WREG_GFX(reg, v) \
+ do { \
+ WREG8(GFX_INDEX, reg); \
+ WREG8(GFX_DATA, v); \
+ } while (0) \
+
+#define DAC_INDEX 0x3c00
+#define DAC_DATA 0x3c0a
+
+#define WREG_DAC(reg, v) \
+ do { \
+ WREG8(DAC_INDEX, reg); \
+ WREG8(DAC_DATA, v); \
+ } while (0) \
+
+#define MGA_MISC_OUT 0x1fc2
+#define MGA_MISC_IN 0x1fcc
+
+#define MGAG200_MAX_FB_HEIGHT 4096
+#define MGAG200_MAX_FB_WIDTH 4096
+
+#define MATROX_DPMS_CLEARED (-1)
+
+#define to_mga_crtc(x) container_of(x, struct mga_crtc, base)
+#define to_mga_encoder(x) container_of(x, struct mga_encoder, base)
+#define to_mga_connector(x) container_of(x, struct mga_connector, base)
+#define to_mga_framebuffer(x) container_of(x, struct mga_framebuffer, base)
+
+struct mga_framebuffer {
+ struct drm_framebuffer base;
+ struct drm_gem_object *obj;
+};
+
+struct mga_fbdev {
+ struct drm_fb_helper helper;
+ struct mga_framebuffer mfb;
+ struct list_head fbdev_list;
+ void *sysram;
+ int size;
+ struct ttm_bo_kmap_obj mapping;
+};
+
+struct mga_crtc {
+ struct drm_crtc base;
+ u8 lut_r[256], lut_g[256], lut_b[256];
+ int last_dpms;
+ bool enabled;
+};
+
+struct mga_mode_info {
+ bool mode_config_initialized;
+ struct mga_crtc *crtc;
+};
+
+struct mga_encoder {
+ struct drm_encoder base;
+ int last_dpms;
+};
+
+
+struct mga_i2c_chan {
+ struct i2c_adapter adapter;
+ struct drm_device *dev;
+ struct i2c_algo_bit_data bit;
+ int data, clock;
+};
+
+struct mga_connector {
+ struct drm_connector base;
+ struct mga_i2c_chan *i2c;
+};
+
+
+struct mga_mc {
+ resource_size_t vram_size;
+ resource_size_t vram_base;
+ resource_size_t vram_window;
+};
+
+enum mga_type {
+ G200_SE_A,
+ G200_SE_B,
+ G200_WB,
+ G200_EV,
+ G200_EH,
+ G200_ER,
+};
+
+#define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)
+
+struct mga_device {
+ struct drm_device *dev;
+ unsigned long flags;
+
+ resource_size_t rmmio_base;
+ resource_size_t rmmio_size;
+ void __iomem *rmmio;
+
+ drm_local_map_t *framebuffer;
+
+ struct mga_mc mc;
+ struct mga_mode_info mode_info;
+
+ struct mga_fbdev *mfbdev;
+
+ bool suspended;
+ int num_crtc;
+ enum mga_type type;
+ int has_sdram;
+ struct drm_display_mode mode;
+
+ int bpp_shifts[4];
+
+ int fb_mtrr;
+
+ struct {
+ struct drm_global_reference mem_global_ref;
+ struct ttm_bo_global_ref bo_global_ref;
+ struct ttm_bo_device bdev;
+ atomic_t validate_sequence;
+ } ttm;
+
+ u32 reg_1e24; /* SE model number */
+};
+
+
+struct mgag200_bo {
+ struct ttm_buffer_object bo;
+ struct ttm_placement placement;
+ struct ttm_bo_kmap_obj kmap;
+ struct drm_gem_object gem;
+ u32 placements[3];
+ int pin_count;
+};
+#define gem_to_mga_bo(gobj) container_of((gobj), struct mgag200_bo, gem)
+
+static inline struct mgag200_bo *
+mgag200_bo(struct ttm_buffer_object *bo)
+{
+ return container_of(bo, struct mgag200_bo, bo);
+}
+ /* mga_crtc.c */
+void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno);
+void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno);
+
+ /* mgag200_mode.c */
+int mgag200_modeset_init(struct mga_device *mdev);
+void mgag200_modeset_fini(struct mga_device *mdev);
+
+ /* mga_fbdev.c */
+int mgag200_fbdev_init(struct mga_device *mdev);
+void mgag200_fbdev_fini(struct mga_device *mdev);
+
+ /* mgag200_main.c */
+int mgag200_framebuffer_init(struct drm_device *dev,
+ struct mga_framebuffer *mfb,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj);
+
+
+int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
+int mgag200_driver_unload(struct drm_device *dev);
+int mgag200_gem_create(struct drm_device *dev,
+ u32 size, bool iskernel,
+ struct drm_gem_object **obj);
+int mgag200_gem_init_object(struct drm_gem_object *obj);
+int mgag200_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args);
+int mgag200_dumb_destroy(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle);
+void mgag200_gem_free_object(struct drm_gem_object *obj);
+int
+mgag200_dumb_mmap_offset(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle,
+ uint64_t *offset);
+ /* mga_i2c.c */
+struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
+void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
+
+#define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT)
+void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
+
+int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait);
+void mgag200_bo_unreserve(struct mgag200_bo *bo);
+int mgag200_bo_create(struct drm_device *dev, int size, int align,
+ uint32_t flags, struct mgag200_bo **pastbo);
+int mgag200_mm_init(struct mga_device *mdev);
+void mgag200_mm_fini(struct mga_device *mdev);
+int mgag200_mmap(struct file *filp, struct vm_area_struct *vma);
+int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr);
+int mgag200_bo_unpin(struct mgag200_bo *bo);
+int mgag200_bo_push_sysram(struct mgag200_bo *bo);
+#endif /* __MGAG200_DRV_H__ */
diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c
new file mode 100644
index 000000000000..880d3369760e
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_fb.c
@@ -0,0 +1,294 @@
+/*
+ * Copyright 2010 Matt Turner.
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Matt Turner
+ * Dave Airlie
+ */
+#include <linux/module.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_fb_helper.h"
+
+#include <linux/fb.h>
+
+#include "mgag200_drv.h"
+
+static void mga_dirty_update(struct mga_fbdev *mfbdev,
+ int x, int y, int width, int height)
+{
+ int i;
+ struct drm_gem_object *obj;
+ struct mgag200_bo *bo;
+ int src_offset, dst_offset;
+ int bpp = (mfbdev->mfb.base.bits_per_pixel + 7)/8;
+ int ret;
+ bool unmap = false;
+
+ obj = mfbdev->mfb.obj;
+ bo = gem_to_mga_bo(obj);
+
+ ret = mgag200_bo_reserve(bo, true);
+ if (ret) {
+ DRM_ERROR("failed to reserve fb bo\n");
+ return;
+ }
+
+ if (!bo->kmap.virtual) {
+ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (ret) {
+ DRM_ERROR("failed to kmap fb updates\n");
+ mgag200_bo_unreserve(bo);
+ return;
+ }
+ unmap = true;
+ }
+ for (i = y; i < y + height; i++) {
+ /* assume equal stride for now */
+ src_offset = dst_offset = i * mfbdev->mfb.base.pitches[0] + (x * bpp);
+ memcpy_toio(bo->kmap.virtual + src_offset, mfbdev->sysram + src_offset, width * bpp);
+
+ }
+ if (unmap)
+ ttm_bo_kunmap(&bo->kmap);
+
+ mgag200_bo_unreserve(bo);
+}
+
+static void mga_fillrect(struct fb_info *info,
+ const struct fb_fillrect *rect)
+{
+ struct mga_fbdev *mfbdev = info->par;
+ sys_fillrect(info, rect);
+ mga_dirty_update(mfbdev, rect->dx, rect->dy, rect->width,
+ rect->height);
+}
+
+static void mga_copyarea(struct fb_info *info,
+ const struct fb_copyarea *area)
+{
+ struct mga_fbdev *mfbdev = info->par;
+ sys_copyarea(info, area);
+ mga_dirty_update(mfbdev, area->dx, area->dy, area->width,
+ area->height);
+}
+
+static void mga_imageblit(struct fb_info *info,
+ const struct fb_image *image)
+{
+ struct mga_fbdev *mfbdev = info->par;
+ sys_imageblit(info, image);
+ mga_dirty_update(mfbdev, image->dx, image->dy, image->width,
+ image->height);
+}
+
+
+static struct fb_ops mgag200fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = drm_fb_helper_check_var,
+ .fb_set_par = drm_fb_helper_set_par,
+ .fb_fillrect = mga_fillrect,
+ .fb_copyarea = mga_copyarea,
+ .fb_imageblit = mga_imageblit,
+ .fb_pan_display = drm_fb_helper_pan_display,
+ .fb_blank = drm_fb_helper_blank,
+ .fb_setcmap = drm_fb_helper_setcmap,
+};
+
+static int mgag200fb_create_object(struct mga_fbdev *afbdev,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object **gobj_p)
+{
+ struct drm_device *dev = afbdev->helper.dev;
+ u32 bpp, depth;
+ u32 size;
+ struct drm_gem_object *gobj;
+
+ int ret = 0;
+ drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
+
+ size = mode_cmd->pitches[0] * mode_cmd->height;
+ ret = mgag200_gem_create(dev, size, true, &gobj);
+ if (ret)
+ return ret;
+
+ *gobj_p = gobj;
+ return ret;
+}
+
+static int mgag200fb_create(struct mga_fbdev *mfbdev,
+ struct drm_fb_helper_surface_size *sizes)
+{
+ struct drm_device *dev = mfbdev->helper.dev;
+ struct drm_mode_fb_cmd2 mode_cmd;
+ struct mga_device *mdev = dev->dev_private;
+ struct fb_info *info;
+ struct drm_framebuffer *fb;
+ struct drm_gem_object *gobj = NULL;
+ struct device *device = &dev->pdev->dev;
+ struct mgag200_bo *bo;
+ int ret;
+ void *sysram;
+ int size;
+
+ mode_cmd.width = sizes->surface_width;
+ mode_cmd.height = sizes->surface_height;
+ mode_cmd.pitches[0] = mode_cmd.width * ((sizes->surface_bpp + 7) / 8);
+
+ mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+ sizes->surface_depth);
+ size = mode_cmd.pitches[0] * mode_cmd.height;
+
+ ret = mgag200fb_create_object(mfbdev, &mode_cmd, &gobj);
+ if (ret) {
+ DRM_ERROR("failed to create fbcon backing object %d\n", ret);
+ return ret;
+ }
+ bo = gem_to_mga_bo(gobj);
+
+ sysram = vmalloc(size);
+ if (!sysram)
+ return -ENOMEM;
+
+ info = framebuffer_alloc(0, device);
+ if (info == NULL)
+ return -ENOMEM;
+
+ info->par = mfbdev;
+
+ ret = mgag200_framebuffer_init(dev, &mfbdev->mfb, &mode_cmd, gobj);
+ if (ret)
+ return ret;
+
+ mfbdev->sysram = sysram;
+ mfbdev->size = size;
+
+ fb = &mfbdev->mfb.base;
+
+ /* setup helper */
+ mfbdev->helper.fb = fb;
+ mfbdev->helper.fbdev = info;
+
+ ret = fb_alloc_cmap(&info->cmap, 256, 0);
+ if (ret) {
+ DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ strcpy(info->fix.id, "mgadrmfb");
+
+ info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
+ info->fbops = &mgag200fb_ops;
+
+ /* setup aperture base/size for vesafb takeover */
+ info->apertures = alloc_apertures(1);
+ if (!info->apertures) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ info->apertures->ranges[0].base = mdev->dev->mode_config.fb_base;
+ info->apertures->ranges[0].size = mdev->mc.vram_size;
+
+ drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
+ drm_fb_helper_fill_var(info, &mfbdev->helper, sizes->fb_width,
+ sizes->fb_height);
+
+ info->screen_base = sysram;
+ info->screen_size = size;
+ info->pixmap.flags = FB_PIXMAP_SYSTEM;
+
+ DRM_DEBUG_KMS("allocated %dx%d\n",
+ fb->width, fb->height);
+ return 0;
+out:
+ return ret;
+}
+
+static int mga_fb_find_or_create_single(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size
+ *sizes)
+{
+ struct mga_fbdev *mfbdev = (struct mga_fbdev *)helper;
+ int new_fb = 0;
+ int ret;
+
+ if (!helper->fb) {
+ ret = mgag200fb_create(mfbdev, sizes);
+ if (ret)
+ return ret;
+ new_fb = 1;
+ }
+ return new_fb;
+}
+
+static int mga_fbdev_destroy(struct drm_device *dev,
+ struct mga_fbdev *mfbdev)
+{
+ struct fb_info *info;
+ struct mga_framebuffer *mfb = &mfbdev->mfb;
+
+ if (mfbdev->helper.fbdev) {
+ info = mfbdev->helper.fbdev;
+
+ unregister_framebuffer(info);
+ if (info->cmap.len)
+ fb_dealloc_cmap(&info->cmap);
+ framebuffer_release(info);
+ }
+
+ if (mfb->obj) {
+ drm_gem_object_unreference_unlocked(mfb->obj);
+ mfb->obj = NULL;
+ }
+ drm_fb_helper_fini(&mfbdev->helper);
+ vfree(mfbdev->sysram);
+ drm_framebuffer_cleanup(&mfb->base);
+
+ return 0;
+}
+
+static struct drm_fb_helper_funcs mga_fb_helper_funcs = {
+ .gamma_set = mga_crtc_fb_gamma_set,
+ .gamma_get = mga_crtc_fb_gamma_get,
+ .fb_probe = mga_fb_find_or_create_single,
+};
+
+int mgag200_fbdev_init(struct mga_device *mdev)
+{
+ struct mga_fbdev *mfbdev;
+ int ret;
+
+ mfbdev = kzalloc(sizeof(struct mga_fbdev), GFP_KERNEL);
+ if (!mfbdev)
+ return -ENOMEM;
+
+ mdev->mfbdev = mfbdev;
+ mfbdev->helper.funcs = &mga_fb_helper_funcs;
+
+ ret = drm_fb_helper_init(mdev->dev, &mfbdev->helper,
+ mdev->num_crtc, MGAG200FB_CONN_LIMIT);
+ if (ret) {
+ kfree(mfbdev);
+ return ret;
+ }
+ drm_fb_helper_single_add_all_connectors(&mfbdev->helper);
+ drm_fb_helper_initial_config(&mfbdev->helper, 32);
+
+ return 0;
+}
+
+void mgag200_fbdev_fini(struct mga_device *mdev)
+{
+ if (!mdev->mfbdev)
+ return;
+
+ mga_fbdev_destroy(mdev->dev, mdev->mfbdev);
+ kfree(mdev->mfbdev);
+ mdev->mfbdev = NULL;
+}
diff --git a/drivers/gpu/drm/mgag200/mgag200_i2c.c b/drivers/gpu/drm/mgag200/mgag200_i2c.c
new file mode 100644
index 000000000000..dd3568a1b6b0
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_i2c.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ */
+#include <linux/export.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include "drmP.h"
+#include "drm.h"
+
+#include "mgag200_drv.h"
+
+static int mga_i2c_read_gpio(struct mga_device *mdev)
+{
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
+ return RREG8(DAC_DATA);
+}
+
+static void mga_i2c_set_gpio(struct mga_device *mdev, int mask, int val)
+{
+ int tmp;
+
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL);
+ tmp = (RREG8(DAC_DATA) & mask) | val;
+ WREG_DAC(MGA1064_GEN_IO_CTL, tmp);
+ WREG_DAC(MGA1064_GEN_IO_DATA, 0);
+}
+
+static inline void mga_i2c_set(struct mga_device *mdev, int mask, int state)
+{
+ if (state)
+ state = 0;
+ else
+ state = mask;
+ mga_i2c_set_gpio(mdev, ~mask, state);
+}
+
+static void mga_gpio_setsda(void *data, int state)
+{
+ struct mga_i2c_chan *i2c = data;
+ struct mga_device *mdev = i2c->dev->dev_private;
+ mga_i2c_set(mdev, i2c->data, state);
+}
+
+static void mga_gpio_setscl(void *data, int state)
+{
+ struct mga_i2c_chan *i2c = data;
+ struct mga_device *mdev = i2c->dev->dev_private;
+ mga_i2c_set(mdev, i2c->clock, state);
+}
+
+static int mga_gpio_getsda(void *data)
+{
+ struct mga_i2c_chan *i2c = data;
+ struct mga_device *mdev = i2c->dev->dev_private;
+ return (mga_i2c_read_gpio(mdev) & i2c->data) ? 1 : 0;
+}
+
+static int mga_gpio_getscl(void *data)
+{
+ struct mga_i2c_chan *i2c = data;
+ struct mga_device *mdev = i2c->dev->dev_private;
+ return (mga_i2c_read_gpio(mdev) & i2c->clock) ? 1 : 0;
+}
+
+struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev)
+{
+ struct mga_device *mdev = dev->dev_private;
+ struct mga_i2c_chan *i2c;
+ int ret;
+ int data, clock;
+
+ WREG_DAC(MGA1064_GEN_IO_DATA, 0xff);
+ WREG_DAC(MGA1064_GEN_IO_CTL, 0);
+
+ switch (mdev->type) {
+ case G200_SE_A:
+ case G200_SE_B:
+ case G200_EV:
+ case G200_WB:
+ data = 1;
+ clock = 2;
+ break;
+ case G200_EH:
+ case G200_ER:
+ data = 2;
+ clock = 1;
+ break;
+ default:
+ data = 2;
+ clock = 8;
+ break;
+ }
+
+ i2c = kzalloc(sizeof(struct mga_i2c_chan), GFP_KERNEL);
+ if (!i2c)
+ return NULL;
+
+ i2c->data = data;
+ i2c->clock = clock;
+ i2c->adapter.owner = THIS_MODULE;
+ i2c->adapter.class = I2C_CLASS_DDC;
+ i2c->adapter.dev.parent = &dev->pdev->dev;
+ i2c->dev = dev;
+ i2c_set_adapdata(&i2c->adapter, i2c);
+ snprintf(i2c->adapter.name, sizeof(i2c->adapter.name), "mga i2c");
+
+ i2c->adapter.algo_data = &i2c->bit;
+
+ i2c->bit.udelay = 10;
+ i2c->bit.timeout = 2;
+ i2c->bit.data = i2c;
+ i2c->bit.setsda = mga_gpio_setsda;
+ i2c->bit.setscl = mga_gpio_setscl;
+ i2c->bit.getsda = mga_gpio_getsda;
+ i2c->bit.getscl = mga_gpio_getscl;
+
+ ret = i2c_bit_add_bus(&i2c->adapter);
+ if (ret) {
+ kfree(i2c);
+ i2c = NULL;
+ }
+ return i2c;
+}
+
+void mgag200_i2c_destroy(struct mga_i2c_chan *i2c)
+{
+ if (!i2c)
+ return;
+ i2c_del_adapter(&i2c->adapter);
+ kfree(i2c);
+}
+
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
new file mode 100644
index 000000000000..636a81cd2f37
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -0,0 +1,388 @@
+/*
+ * Copyright 2010 Matt Turner.
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Matt Turner
+ * Dave Airlie
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc_helper.h"
+#include "mgag200_drv.h"
+
+static void mga_user_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+ struct mga_framebuffer *mga_fb = to_mga_framebuffer(fb);
+ if (mga_fb->obj)
+ drm_gem_object_unreference_unlocked(mga_fb->obj);
+ drm_framebuffer_cleanup(fb);
+ kfree(fb);
+}
+
+static int mga_user_framebuffer_create_handle(struct drm_framebuffer *fb,
+ struct drm_file *file_priv,
+ unsigned int *handle)
+{
+ return 0;
+}
+
+static const struct drm_framebuffer_funcs mga_fb_funcs = {
+ .destroy = mga_user_framebuffer_destroy,
+ .create_handle = mga_user_framebuffer_create_handle,
+};
+
+int mgag200_framebuffer_init(struct drm_device *dev,
+ struct mga_framebuffer *gfb,
+ struct drm_mode_fb_cmd2 *mode_cmd,
+ struct drm_gem_object *obj)
+{
+ int ret = drm_framebuffer_init(dev, &gfb->base, &mga_fb_funcs);
+ if (ret) {
+ DRM_ERROR("drm_framebuffer_init failed: %d\n", ret);
+ return ret;
+ }
+ drm_helper_mode_fill_fb_struct(&gfb->base, mode_cmd);
+ gfb->obj = obj;
+ return 0;
+}
+
+static struct drm_framebuffer *
+mgag200_user_framebuffer_create(struct drm_device *dev,
+ struct drm_file *filp,
+ struct drm_mode_fb_cmd2 *mode_cmd)
+{
+ struct drm_gem_object *obj;
+ struct mga_framebuffer *mga_fb;
+ int ret;
+
+ obj = drm_gem_object_lookup(dev, filp, mode_cmd->handles[0]);
+ if (obj == NULL)
+ return ERR_PTR(-ENOENT);
+
+ mga_fb = kzalloc(sizeof(*mga_fb), GFP_KERNEL);
+ if (!mga_fb) {
+ drm_gem_object_unreference_unlocked(obj);
+ return ERR_PTR(-ENOMEM);
+ }
+
+ ret = mgag200_framebuffer_init(dev, mga_fb, mode_cmd, obj);
+ if (ret) {
+ drm_gem_object_unreference_unlocked(obj);
+ kfree(mga_fb);
+ return ERR_PTR(ret);
+ }
+ return &mga_fb->base;
+}
+
+static const struct drm_mode_config_funcs mga_mode_funcs = {
+ .fb_create = mgag200_user_framebuffer_create,
+};
+
+/* Unmap the framebuffer from the core and release the memory */
+static void mga_vram_fini(struct mga_device *mdev)
+{
+ pci_iounmap(mdev->dev->pdev, mdev->rmmio);
+ mdev->rmmio = NULL;
+ if (mdev->mc.vram_base)
+ release_mem_region(mdev->mc.vram_base, mdev->mc.vram_window);
+}
+
+static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
+{
+ int offset;
+ int orig;
+ int test1, test2;
+ int orig1, orig2;
+
+ /* Probe */
+ orig = ioread16(mem);
+ iowrite16(0, mem);
+
+ for (offset = 0x100000; offset < mdev->mc.vram_window; offset += 0x4000) {
+ orig1 = ioread8(mem + offset);
+ orig2 = ioread8(mem + offset + 0x100);
+
+ iowrite16(0xaa55, mem + offset);
+ iowrite16(0xaa55, mem + offset + 0x100);
+
+ test1 = ioread16(mem + offset);
+ test2 = ioread16(mem);
+
+ iowrite16(orig1, mem + offset);
+ iowrite16(orig2, mem + offset + 0x100);
+
+ if (test1 != 0xaa55) {
+ break;
+ }
+
+ if (test2) {
+ break;
+ }
+ }
+
+ iowrite16(orig, mem);
+ return offset - 65536;
+}
+
+/* Map the framebuffer from the card and configure the core */
+static int mga_vram_init(struct mga_device *mdev)
+{
+ void __iomem *mem;
+ struct apertures_struct *aper = alloc_apertures(1);
+
+ /* BAR 0 is VRAM */
+ mdev->mc.vram_base = pci_resource_start(mdev->dev->pdev, 0);
+ mdev->mc.vram_window = pci_resource_len(mdev->dev->pdev, 0);
+
+ aper->ranges[0].base = mdev->mc.vram_base;
+ aper->ranges[0].size = mdev->mc.vram_window;
+ aper->count = 1;
+
+ remove_conflicting_framebuffers(aper, "mgafb", true);
+
+ if (!request_mem_region(mdev->mc.vram_base, mdev->mc.vram_window,
+ "mgadrmfb_vram")) {
+ DRM_ERROR("can't reserve VRAM\n");
+ return -ENXIO;
+ }
+
+ mem = pci_iomap(mdev->dev->pdev, 0, 0);
+
+ mdev->mc.vram_size = mga_probe_vram(mdev, mem);
+
+ pci_iounmap(mdev->dev->pdev, mem);
+
+ return 0;
+}
+
+static int mgag200_device_init(struct drm_device *dev,
+ uint32_t flags)
+{
+ struct mga_device *mdev = dev->dev_private;
+ int ret, option;
+
+ mdev->type = flags;
+
+ /* Hardcode the number of CRTCs to 1 */
+ mdev->num_crtc = 1;
+
+ pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
+ mdev->has_sdram = !(option & (1 << 14));
+
+ /* BAR 0 is the framebuffer, BAR 1 contains registers */
+ mdev->rmmio_base = pci_resource_start(mdev->dev->pdev, 1);
+ mdev->rmmio_size = pci_resource_len(mdev->dev->pdev, 1);
+
+ if (!request_mem_region(mdev->rmmio_base, mdev->rmmio_size,
+ "mgadrmfb_mmio")) {
+ DRM_ERROR("can't reserve mmio registers\n");
+ return -ENOMEM;
+ }
+
+ mdev->rmmio = pci_iomap(dev->pdev, 1, 0);
+ if (mdev->rmmio == NULL)
+ return -ENOMEM;
+
+ /* stash G200 SE model number for later use */
+ if (IS_G200_SE(mdev))
+ mdev->reg_1e24 = RREG32(0x1e24);
+
+ ret = mga_vram_init(mdev);
+ if (ret) {
+ release_mem_region(mdev->rmmio_base, mdev->rmmio_size);
+ return ret;
+ }
+
+ mdev->bpp_shifts[0] = 0;
+ mdev->bpp_shifts[1] = 1;
+ mdev->bpp_shifts[2] = 0;
+ mdev->bpp_shifts[3] = 2;
+ return 0;
+}
+
+void mgag200_device_fini(struct mga_device *mdev)
+{
+ release_mem_region(mdev->rmmio_base, mdev->rmmio_size);
+ mga_vram_fini(mdev);
+}
+
+/*
+ * Functions here will be called by the core once it's bound the driver to
+ * a PCI device
+ */
+
+
+int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
+{
+ struct mga_device *mdev;
+ int r;
+
+ mdev = kzalloc(sizeof(struct mga_device), GFP_KERNEL);
+ if (mdev == NULL)
+ return -ENOMEM;
+ dev->dev_private = (void *)mdev;
+ mdev->dev = dev;
+
+ r = mgag200_device_init(dev, flags);
+ if (r) {
+ dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
+ goto out;
+ }
+ r = mgag200_mm_init(mdev);
+ if (r)
+ goto out;
+
+ drm_mode_config_init(dev);
+ dev->mode_config.funcs = (void *)&mga_mode_funcs;
+ dev->mode_config.min_width = 0;
+ dev->mode_config.min_height = 0;
+ dev->mode_config.preferred_depth = 24;
+ dev->mode_config.prefer_shadow = 1;
+
+ r = mgag200_modeset_init(mdev);
+ if (r)
+ dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
+out:
+ if (r)
+ mgag200_driver_unload(dev);
+ return r;
+}
+
+int mgag200_driver_unload(struct drm_device *dev)
+{
+ struct mga_device *mdev = dev->dev_private;
+
+ if (mdev == NULL)
+ return 0;
+ mgag200_modeset_fini(mdev);
+ mgag200_fbdev_fini(mdev);
+ drm_mode_config_cleanup(dev);
+ mgag200_mm_fini(mdev);
+ mgag200_device_fini(mdev);
+ kfree(mdev);
+ dev->dev_private = NULL;
+ return 0;
+}
+
+int mgag200_gem_create(struct drm_device *dev,
+ u32 size, bool iskernel,
+ struct drm_gem_object **obj)
+{
+ struct mgag200_bo *astbo;
+ int ret;
+
+ *obj = NULL;
+
+ size = roundup(size, PAGE_SIZE);
+ if (size == 0)
+ return -EINVAL;
+
+ ret = mgag200_bo_create(dev, size, 0, 0, &astbo);
+ if (ret) {
+ if (ret != -ERESTARTSYS)
+ DRM_ERROR("failed to allocate GEM object\n");
+ return ret;
+ }
+ *obj = &astbo->gem;
+ return 0;
+}
+
+int mgag200_dumb_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct drm_mode_create_dumb *args)
+{
+ int ret;
+ struct drm_gem_object *gobj;
+ u32 handle;
+
+ args->pitch = args->width * ((args->bpp + 7) / 8);
+ args->size = args->pitch * args->height;
+
+ ret = mgag200_gem_create(dev, args->size, false,
+ &gobj);
+ if (ret)
+ return ret;
+
+ ret = drm_gem_handle_create(file, gobj, &handle);
+ drm_gem_object_unreference_unlocked(gobj);
+ if (ret)
+ return ret;
+
+ args->handle = handle;
+ return 0;
+}
+
+int mgag200_dumb_destroy(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle)
+{
+ return drm_gem_handle_delete(file, handle);
+}
+
+int mgag200_gem_init_object(struct drm_gem_object *obj)
+{
+ BUG();
+ return 0;
+}
+
+void mgag200_bo_unref(struct mgag200_bo **bo)
+{
+ struct ttm_buffer_object *tbo;
+
+ if ((*bo) == NULL)
+ return;
+
+ tbo = &((*bo)->bo);
+ ttm_bo_unref(&tbo);
+ if (tbo == NULL)
+ *bo = NULL;
+
+}
+
+void mgag200_gem_free_object(struct drm_gem_object *obj)
+{
+ struct mgag200_bo *mgag200_bo = gem_to_mga_bo(obj);
+
+ if (!mgag200_bo)
+ return;
+ mgag200_bo_unref(&mgag200_bo);
+}
+
+
+static inline u64 mgag200_bo_mmap_offset(struct mgag200_bo *bo)
+{
+ return bo->bo.addr_space_offset;
+}
+
+int
+mgag200_dumb_mmap_offset(struct drm_file *file,
+ struct drm_device *dev,
+ uint32_t handle,
+ uint64_t *offset)
+{
+ struct drm_gem_object *obj;
+ int ret;
+ struct mgag200_bo *bo;
+
+ mutex_lock(&dev->struct_mutex);
+ obj = drm_gem_object_lookup(dev, file, handle);
+ if (obj == NULL) {
+ ret = -ENOENT;
+ goto out_unlock;
+ }
+
+ bo = gem_to_mga_bo(obj);
+ *offset = mgag200_bo_mmap_offset(bo);
+
+ drm_gem_object_unreference(obj);
+ ret = 0;
+out_unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+
+}
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
new file mode 100644
index 000000000000..d303061b251e
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -0,0 +1,1533 @@
+/*
+ * Copyright 2010 Matt Turner.
+ * Copyright 2012 Red Hat
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License version 2. See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Authors: Matthew Garrett
+ * Matt Turner
+ * Dave Airlie
+ */
+
+#include <linux/delay.h>
+
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc_helper.h"
+
+#include "mgag200_drv.h"
+
+#define MGAG200_LUT_SIZE 256
+
+/*
+ * This file contains setup code for the CRTC.
+ */
+
+static void mga_crtc_load_lut(struct drm_crtc *crtc)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ int i;
+
+ if (!crtc->enabled)
+ return;
+
+ WREG8(DAC_INDEX + MGA1064_INDEX, 0);
+
+ for (i = 0; i < MGAG200_LUT_SIZE; i++) {
+ /* VGA registers */
+ WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_r[i]);
+ WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_g[i]);
+ WREG8(DAC_INDEX + MGA1064_COL_PAL, mga_crtc->lut_b[i]);
+ }
+}
+
+static inline void mga_wait_vsync(struct mga_device *mdev)
+{
+ unsigned int count = 0;
+ unsigned int status = 0;
+
+ do {
+ status = RREG32(MGAREG_Status);
+ count++;
+ } while ((status & 0x08) && (count < 250000));
+ count = 0;
+ status = 0;
+ do {
+ status = RREG32(MGAREG_Status);
+ count++;
+ } while (!(status & 0x08) && (count < 250000));
+}
+
+static inline void mga_wait_busy(struct mga_device *mdev)
+{
+ unsigned int count = 0;
+ unsigned int status = 0;
+ do {
+ status = RREG8(MGAREG_Status + 2);
+ count++;
+ } while ((status & 0x01) && (count < 500000));
+}
+
+/*
+ * The core passes the desired mode to the CRTC code to see whether any
+ * CRTC-specific modifications need to be made to it. We're in a position
+ * to just pass that straight through, so this does nothing
+ */
+static bool mga_crtc_mode_fixup(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static int mga_g200se_set_plls(struct mga_device *mdev, long clock)
+{
+ unsigned int vcomax, vcomin, pllreffreq;
+ unsigned int delta, tmpdelta, permitteddelta;
+ unsigned int testp, testm, testn;
+ unsigned int p, m, n;
+ unsigned int computed;
+
+ m = n = p = 0;
+ vcomax = 320000;
+ vcomin = 160000;
+ pllreffreq = 25000;
+
+ delta = 0xffffffff;
+ permitteddelta = clock * 5 / 1000;
+
+ for (testp = 8; testp > 0; testp /= 2) {
+ if (clock * testp > vcomax)
+ continue;
+ if (clock * testp < vcomin)
+ continue;
+
+ for (testn = 17; testn < 256; testn++) {
+ for (testm = 1; testm < 32; testm++) {
+ computed = (pllreffreq * testn) /
+ (testm * testp);
+ if (computed > clock)
+ tmpdelta = computed - clock;
+ else
+ tmpdelta = clock - computed;
+ if (tmpdelta < delta) {
+ delta = tmpdelta;
+ m = testm - 1;
+ n = testn - 1;
+ p = testp - 1;
+ }
+ }
+ }
+ }
+
+ if (delta > permitteddelta) {
+ printk(KERN_WARNING "PLL delta too large\n");
+ return 1;
+ }
+
+ WREG_DAC(MGA1064_PIX_PLLC_M, m);
+ WREG_DAC(MGA1064_PIX_PLLC_N, n);
+ WREG_DAC(MGA1064_PIX_PLLC_P, p);
+ return 0;
+}
+
+static int mga_g200wb_set_plls(struct mga_device *mdev, long clock)
+{
+ unsigned int vcomax, vcomin, pllreffreq;
+ unsigned int delta, tmpdelta, permitteddelta;
+ unsigned int testp, testm, testn;
+ unsigned int p, m, n;
+ unsigned int computed;
+ int i, j, tmpcount, vcount;
+ bool pll_locked = false;
+ u8 tmp;
+
+ m = n = p = 0;
+ vcomax = 550000;
+ vcomin = 150000;
+ pllreffreq = 48000;
+
+ delta = 0xffffffff;
+ permitteddelta = clock * 5 / 1000;
+
+ for (testp = 1; testp < 9; testp++) {
+ if (clock * testp > vcomax)
+ continue;
+ if (clock * testp < vcomin)
+ continue;
+
+ for (testm = 1; testm < 17; testm++) {
+ for (testn = 1; testn < 151; testn++) {
+ computed = (pllreffreq * testn) /
+ (testm * testp);
+ if (computed > clock)
+ tmpdelta = computed - clock;
+ else
+ tmpdelta = clock - computed;
+ if (tmpdelta < delta) {
+ delta = tmpdelta;
+ n = testn - 1;
+ m = (testm - 1) | ((n >> 1) & 0x80);
+ p = testp - 1;
+ }
+ }
+ }
+ }
+
+ for (i = 0; i <= 32 && pll_locked == false; i++) {
+ if (i > 0) {
+ WREG8(MGAREG_CRTC_INDEX, 0x1e);
+ tmp = RREG8(MGAREG_CRTC_DATA);
+ if (tmp < 0xff)
+ WREG8(MGAREG_CRTC_DATA, tmp+1);
+ }
+
+ /* set pixclkdis to 1 */
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_REMHEADCTL_CLKDIS;
+ WREG_DAC(MGA1064_REMHEADCTL, tmp);
+
+ /* select PLL Set C */
+ tmp = RREG8(MGAREG_MEM_MISC_READ);
+ tmp |= 0x3 << 2;
+ WREG8(MGAREG_MEM_MISC_WRITE, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN | 0x80;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ udelay(500);
+
+ /* reset the PLL */
+ WREG8(DAC_INDEX, MGA1064_VREF_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~0x04;
+ WREG_DAC(MGA1064_VREF_CTL, tmp);
+
+ udelay(50);
+
+ /* program pixel pll register */
+ WREG_DAC(MGA1064_WB_PIX_PLLC_N, n);
+ WREG_DAC(MGA1064_WB_PIX_PLLC_M, m);
+ WREG_DAC(MGA1064_WB_PIX_PLLC_P, p);
+
+ udelay(50);
+
+ /* turn pll on */
+ WREG8(DAC_INDEX, MGA1064_VREF_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= 0x04;
+ WREG_DAC(MGA1064_VREF_CTL, tmp);
+
+ udelay(500);
+
+ /* select the pixel pll */
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
+ tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_REMHEADCTL_CLKSL_MSK;
+ tmp |= MGA1064_REMHEADCTL_CLKSL_PLL;
+ WREG_DAC(MGA1064_REMHEADCTL, tmp);
+
+ /* reset dotclock rate bit */
+ WREG8(MGAREG_SEQ_INDEX, 1);
+ tmp = RREG8(MGAREG_SEQ_DATA);
+ tmp &= ~0x8;
+ WREG8(MGAREG_SEQ_DATA, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ vcount = RREG8(MGAREG_VCOUNT);
+
+ for (j = 0; j < 30 && pll_locked == false; j++) {
+ tmpcount = RREG8(MGAREG_VCOUNT);
+ if (tmpcount < vcount)
+ vcount = 0;
+ if ((tmpcount - vcount) > 2)
+ pll_locked = true;
+ else
+ udelay(5);
+ }
+ }
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_REMHEADCTL_CLKDIS;
+ WREG_DAC(MGA1064_REMHEADCTL, tmp);
+ return 0;
+}
+
+static int mga_g200ev_set_plls(struct mga_device *mdev, long clock)
+{
+ unsigned int vcomax, vcomin, pllreffreq;
+ unsigned int delta, tmpdelta, permitteddelta;
+ unsigned int testp, testm, testn;
+ unsigned int p, m, n;
+ unsigned int computed;
+ u8 tmp;
+
+ m = n = p = 0;
+ vcomax = 550000;
+ vcomin = 150000;
+ pllreffreq = 50000;
+
+ delta = 0xffffffff;
+ permitteddelta = clock * 5 / 1000;
+
+ for (testp = 16; testp > 0; testp--) {
+ if (clock * testp > vcomax)
+ continue;
+ if (clock * testp < vcomin)
+ continue;
+
+ for (testn = 1; testn < 257; testn++) {
+ for (testm = 1; testm < 17; testm++) {
+ computed = (pllreffreq * testn) /
+ (testm * testp);
+ if (computed > clock)
+ tmpdelta = computed - clock;
+ else
+ tmpdelta = clock - computed;
+ if (tmpdelta < delta) {
+ delta = tmpdelta;
+ n = testn - 1;
+ m = testm - 1;
+ p = testp - 1;
+ }
+ }
+ }
+ }
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+
+ tmp = RREG8(MGAREG_MEM_MISC_READ);
+ tmp |= 0x3 << 2;
+ WREG8(MGAREG_MEM_MISC_WRITE, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT);
+ tmp = RREG8(DAC_DATA);
+ WREG_DAC(MGA1064_PIX_PLL_STAT, tmp & ~0x40);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ WREG_DAC(MGA1064_EV_PIX_PLLC_M, m);
+ WREG_DAC(MGA1064_EV_PIX_PLLC_N, n);
+ WREG_DAC(MGA1064_EV_PIX_PLLC_P, p);
+
+ udelay(50);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ udelay(500);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
+ tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_PLL_STAT);
+ tmp = RREG8(DAC_DATA);
+ WREG_DAC(MGA1064_PIX_PLL_STAT, tmp | 0x40);
+
+ tmp = RREG8(MGAREG_MEM_MISC_READ);
+ tmp |= (0x3 << 2);
+ WREG8(MGAREG_MEM_MISC_WRITE, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ return 0;
+}
+
+static int mga_g200eh_set_plls(struct mga_device *mdev, long clock)
+{
+ unsigned int vcomax, vcomin, pllreffreq;
+ unsigned int delta, tmpdelta, permitteddelta;
+ unsigned int testp, testm, testn;
+ unsigned int p, m, n;
+ unsigned int computed;
+ int i, j, tmpcount, vcount;
+ u8 tmp;
+ bool pll_locked = false;
+
+ m = n = p = 0;
+ vcomax = 800000;
+ vcomin = 400000;
+ pllreffreq = 3333;
+
+ delta = 0xffffffff;
+ permitteddelta = clock * 5 / 1000;
+
+ for (testp = 16; testp > 0; testp--) {
+ if (clock * testp > vcomax)
+ continue;
+ if (clock * testp < vcomin)
+ continue;
+
+ for (testm = 1; testm < 33; testm++) {
+ for (testn = 1; testn < 257; testn++) {
+ computed = (pllreffreq * testn) /
+ (testm * testp);
+ if (computed > clock)
+ tmpdelta = computed - clock;
+ else
+ tmpdelta = clock - computed;
+ if (tmpdelta < delta) {
+ delta = tmpdelta;
+ n = testn - 1;
+ m = (testm - 1) | ((n >> 1) & 0x80);
+ p = testp - 1;
+ }
+ if ((clock * testp) >= 600000)
+ p |= 80;
+ }
+ }
+ }
+ for (i = 0; i <= 32 && pll_locked == false; i++) {
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+
+ tmp = RREG8(MGAREG_MEM_MISC_READ);
+ tmp |= 0x3 << 2;
+ WREG8(MGAREG_MEM_MISC_WRITE, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ udelay(500);
+
+ WREG_DAC(MGA1064_EH_PIX_PLLC_M, m);
+ WREG_DAC(MGA1064_EH_PIX_PLLC_N, n);
+ WREG_DAC(MGA1064_EH_PIX_PLLC_P, p);
+
+ udelay(500);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_SEL_MSK;
+ tmp |= MGA1064_PIX_CLK_CTL_SEL_PLL;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ vcount = RREG8(MGAREG_VCOUNT);
+
+ for (j = 0; j < 30 && pll_locked == false; j++) {
+ tmpcount = RREG8(MGAREG_VCOUNT);
+ if (tmpcount < vcount)
+ vcount = 0;
+ if ((tmpcount - vcount) > 2)
+ pll_locked = true;
+ else
+ udelay(5);
+ }
+ }
+
+ return 0;
+}
+
+static int mga_g200er_set_plls(struct mga_device *mdev, long clock)
+{
+ unsigned int vcomax, vcomin, pllreffreq;
+ unsigned int delta, tmpdelta;
+ unsigned int testr, testn, testm, testo;
+ unsigned int p, m, n;
+ unsigned int computed;
+ int tmp;
+
+ m = n = p = 0;
+ vcomax = 1488000;
+ vcomin = 1056000;
+ pllreffreq = 48000;
+
+ delta = 0xffffffff;
+
+ for (testr = 0; testr < 4; testr++) {
+ if (delta == 0)
+ break;
+ for (testn = 5; testn < 129; testn++) {
+ if (delta == 0)
+ break;
+ for (testm = 3; testm >= 0; testm--) {
+ if (delta == 0)
+ break;
+ for (testo = 5; testo < 33; testo++) {
+ computed = pllreffreq * (testn + 1) /
+ (testr + 1);
+ if (computed < vcomin)
+ continue;
+ if (computed > vcomax)
+ continue;
+ if (computed > clock)
+ tmpdelta = computed - clock;
+ else
+ tmpdelta = clock - computed;
+ if (tmpdelta < delta) {
+ delta = tmpdelta;
+ m = testm | (testo << 3);
+ n = testn;
+ p = testr | (testr << 3);
+ }
+ }
+ }
+ }
+ }
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_DIS;
+ WREG_DAC(MGA1064_PIX_CLK_CTL_CLK_DIS, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= MGA1064_REMHEADCTL_CLKDIS;
+ WREG_DAC(MGA1064_REMHEADCTL, tmp);
+
+ tmp = RREG8(MGAREG_MEM_MISC_READ);
+ tmp |= (0x3<<2) | 0xc0;
+ WREG8(MGAREG_MEM_MISC_WRITE, tmp);
+
+ WREG8(DAC_INDEX, MGA1064_PIX_CLK_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~MGA1064_PIX_CLK_CTL_CLK_DIS;
+ tmp |= MGA1064_PIX_CLK_CTL_CLK_POW_DOWN;
+ WREG_DAC(MGA1064_PIX_CLK_CTL, tmp);
+
+ udelay(500);
+
+ WREG_DAC(MGA1064_ER_PIX_PLLC_N, n);
+ WREG_DAC(MGA1064_ER_PIX_PLLC_M, m);
+ WREG_DAC(MGA1064_ER_PIX_PLLC_P, p);
+
+ udelay(50);
+
+ return 0;
+}
+
+static int mga_crtc_set_plls(struct mga_device *mdev, long clock)
+{
+ switch(mdev->type) {
+ case G200_SE_A:
+ case G200_SE_B:
+ return mga_g200se_set_plls(mdev, clock);
+ break;
+ case G200_WB:
+ return mga_g200wb_set_plls(mdev, clock);
+ break;
+ case G200_EV:
+ return mga_g200ev_set_plls(mdev, clock);
+ break;
+ case G200_EH:
+ return mga_g200eh_set_plls(mdev, clock);
+ break;
+ case G200_ER:
+ return mga_g200er_set_plls(mdev, clock);
+ break;
+ }
+ return 0;
+}
+
+static void mga_g200wb_prepare(struct drm_crtc *crtc)
+{
+ struct mga_device *mdev = crtc->dev->dev_private;
+ u8 tmp;
+ int iter_max;
+
+ /* 1- The first step is to warn the BMC of an upcoming mode change.
+ * We are putting the misc<0> to output.*/
+
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_CTL);
+ tmp = RREG8(DAC_DATA);
+ tmp |= 0x10;
+ WREG_DAC(MGA1064_GEN_IO_CTL, tmp);
+
+ /* we are putting a 1 on the misc<0> line */
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
+ tmp = RREG8(DAC_DATA);
+ tmp |= 0x10;
+ WREG_DAC(MGA1064_GEN_IO_DATA, tmp);
+
+ /* 2- Second step to mask and further scan request
+ * This will be done by asserting the remfreqmsk bit (XSPAREREG<7>)
+ */
+ WREG8(DAC_INDEX, MGA1064_SPAREREG);
+ tmp = RREG8(DAC_DATA);
+ tmp |= 0x80;
+ WREG_DAC(MGA1064_SPAREREG, tmp);
+
+ /* 3a- the third step is to verifu if there is an active scan
+ * We are searching for a 0 on remhsyncsts <XSPAREREG<0>)
+ */
+ iter_max = 300;
+ while (!(tmp & 0x1) && iter_max) {
+ WREG8(DAC_INDEX, MGA1064_SPAREREG);
+ tmp = RREG8(DAC_DATA);
+ udelay(1000);
+ iter_max--;
+ }
+
+ /* 3b- this step occurs only if the remove is actually scanning
+ * we are waiting for the end of the frame which is a 1 on
+ * remvsyncsts (XSPAREREG<1>)
+ */
+ if (iter_max) {
+ iter_max = 300;
+ while ((tmp & 0x2) && iter_max) {
+ WREG8(DAC_INDEX, MGA1064_SPAREREG);
+ tmp = RREG8(DAC_DATA);
+ udelay(1000);
+ iter_max--;
+ }
+ }
+}
+
+static void mga_g200wb_commit(struct drm_crtc *crtc)
+{
+ u8 tmp;
+ struct mga_device *mdev = crtc->dev->dev_private;
+
+ /* 1- The first step is to ensure that the vrsten and hrsten are set */
+ WREG8(MGAREG_CRTCEXT_INDEX, 1);
+ tmp = RREG8(MGAREG_CRTCEXT_DATA);
+ WREG8(MGAREG_CRTCEXT_DATA, tmp | 0x88);
+
+ /* 2- second step is to assert the rstlvl2 */
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL2);
+ tmp = RREG8(DAC_DATA);
+ tmp |= 0x8;
+ WREG8(DAC_DATA, tmp);
+
+ /* wait 10 us */
+ udelay(10);
+
+ /* 3- deassert rstlvl2 */
+ tmp &= ~0x08;
+ WREG8(DAC_INDEX, MGA1064_REMHEADCTL2);
+ WREG8(DAC_DATA, tmp);
+
+ /* 4- remove mask of scan request */
+ WREG8(DAC_INDEX, MGA1064_SPAREREG);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~0x80;
+ WREG8(DAC_DATA, tmp);
+
+ /* 5- put back a 0 on the misc<0> line */
+ WREG8(DAC_INDEX, MGA1064_GEN_IO_DATA);
+ tmp = RREG8(DAC_DATA);
+ tmp &= ~0x10;
+ WREG_DAC(MGA1064_GEN_IO_DATA, tmp);
+}
+
+
+void mga_set_start_address(struct drm_crtc *crtc, unsigned offset)
+{
+ struct mga_device *mdev = crtc->dev->dev_private;
+ u32 addr;
+ int count;
+
+ while (RREG8(0x1fda) & 0x08);
+ while (!(RREG8(0x1fda) & 0x08));
+
+ count = RREG8(MGAREG_VCOUNT) + 2;
+ while (RREG8(MGAREG_VCOUNT) < count);
+
+ addr = offset >> 2;
+ WREG_CRT(0x0d, (u8)(addr & 0xff));
+ WREG_CRT(0x0c, (u8)(addr >> 8) & 0xff);
+ WREG_CRT(0xaf, (u8)(addr >> 16) & 0xf);
+}
+
+
+/* ast is different - we will force move buffers out of VRAM */
+static int mga_crtc_do_set_base(struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int x, int y, int atomic)
+{
+ struct mga_device *mdev = crtc->dev->dev_private;
+ struct drm_gem_object *obj;
+ struct mga_framebuffer *mga_fb;
+ struct mgag200_bo *bo;
+ int ret;
+ u64 gpu_addr;
+
+ /* push the previous fb to system ram */
+ if (!atomic && fb) {
+ mga_fb = to_mga_framebuffer(fb);
+ obj = mga_fb->obj;
+ bo = gem_to_mga_bo(obj);
+ ret = mgag200_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+ mgag200_bo_push_sysram(bo);
+ mgag200_bo_unreserve(bo);
+ }
+
+ mga_fb = to_mga_framebuffer(crtc->fb);
+ obj = mga_fb->obj;
+ bo = gem_to_mga_bo(obj);
+
+ ret = mgag200_bo_reserve(bo, false);
+ if (ret)
+ return ret;
+
+ ret = mgag200_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
+ if (ret) {
+ mgag200_bo_unreserve(bo);
+ return ret;
+ }
+
+ if (&mdev->mfbdev->mfb == mga_fb) {
+ /* if pushing console in kmap it */
+ ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
+ if (ret)
+ DRM_ERROR("failed to kmap fbcon\n");
+
+ }
+ mgag200_bo_unreserve(bo);
+
+ DRM_INFO("mga base %llx\n", gpu_addr);
+
+ mga_set_start_address(crtc, (u32)gpu_addr);
+
+ return 0;
+}
+
+static int mga_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+ struct drm_framebuffer *old_fb)
+{
+ return mga_crtc_do_set_base(crtc, old_fb, x, y, 0);
+}
+
+static int mga_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y, struct drm_framebuffer *old_fb)
+{
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ int hdisplay, hsyncstart, hsyncend, htotal;
+ int vdisplay, vsyncstart, vsyncend, vtotal;
+ int pitch;
+ int option = 0, option2 = 0;
+ int i;
+ unsigned char misc = 0;
+ unsigned char ext_vga[6];
+ unsigned char ext_vga_index24;
+ unsigned char dac_index90 = 0;
+ u8 bppshift;
+
+ static unsigned char dacvalue[] = {
+ /* 0x00: */ 0, 0, 0, 0, 0, 0, 0x00, 0,
+ /* 0x08: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x10: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x18: */ 0x00, 0, 0xC9, 0xFF, 0xBF, 0x20, 0x1F, 0x20,
+ /* 0x20: */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ /* 0x28: */ 0x00, 0x00, 0x00, 0x00, 0, 0, 0, 0x40,
+ /* 0x30: */ 0x00, 0xB0, 0x00, 0xC2, 0x34, 0x14, 0x02, 0x83,
+ /* 0x38: */ 0x00, 0x93, 0x00, 0x77, 0x00, 0x00, 0x00, 0x3A,
+ /* 0x40: */ 0, 0, 0, 0, 0, 0, 0, 0,
+ /* 0x48: */ 0, 0, 0, 0, 0, 0, 0, 0
+ };
+
+ bppshift = mdev->bpp_shifts[(crtc->fb->bits_per_pixel >> 3) - 1];
+
+ switch (mdev->type) {
+ case G200_SE_A:
+ case G200_SE_B:
+ dacvalue[MGA1064_VREF_CTL] = 0x03;
+ dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_DAC_EN |
+ MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ if (mdev->has_sdram)
+ option = 0x40049120;
+ else
+ option = 0x4004d120;
+ option2 = 0x00008000;
+ break;
+ case G200_WB:
+ dacvalue[MGA1064_VREF_CTL] = 0x07;
+ option = 0x41049120;
+ option2 = 0x0000b000;
+ break;
+ case G200_EV:
+ dacvalue[MGA1064_PIX_CLK_CTL] = MGA1064_PIX_CLK_CTL_SEL_PLL;
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ option = 0x00000120;
+ option2 = 0x0000b000;
+ break;
+ case G200_EH:
+ dacvalue[MGA1064_MISC_CTL] = MGA1064_MISC_CTL_VGA8 |
+ MGA1064_MISC_CTL_DAC_RAM_CS;
+ option = 0x00000120;
+ option2 = 0x0000b000;
+ break;
+ case G200_ER:
+ dac_index90 = 0;
+ break;
+ }
+
+ switch (crtc->fb->bits_per_pixel) {
+ case 8:
+ dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_8bits;
+ break;
+ case 16:
+ if (crtc->fb->depth == 15)
+ dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_15bits;
+ else
+ dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_16bits;
+ break;
+ case 24:
+ dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_24bits;
+ break;
+ case 32:
+ dacvalue[MGA1064_MUL_CTL] = MGA1064_MUL_CTL_32_24bits;
+ break;
+ }
+
+ if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+ misc |= 0x40;
+ if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+ misc |= 0x80;
+
+
+ for (i = 0; i < sizeof(dacvalue); i++) {
+ if ((i <= 0x03) ||
+ (i == 0x07) ||
+ (i == 0x0b) ||
+ (i == 0x0f) ||
+ ((i >= 0x13) && (i <= 0x17)) ||
+ (i == 0x1b) ||
+ (i == 0x1c) ||
+ ((i >= 0x1f) && (i <= 0x29)) ||
+ ((i >= 0x30) && (i <= 0x37)))
+ continue;
+ if (IS_G200_SE(mdev) &&
+ ((i == 0x2c) || (i == 0x2d) || (i == 0x2e)))
+ continue;
+ if ((mdev->type == G200_EV || mdev->type == G200_WB || mdev->type == G200_EH) &&
+ (i >= 0x44) && (i <= 0x4e))
+ continue;
+
+ WREG_DAC(i, dacvalue[i]);
+ }
+
+ if (mdev->type == G200_ER) {
+ WREG_DAC(0x90, dac_index90);
+ }
+
+
+ if (option)
+ pci_write_config_dword(dev->pdev, PCI_MGA_OPTION, option);
+ if (option2)
+ pci_write_config_dword(dev->pdev, PCI_MGA_OPTION2, option2);
+
+ WREG_SEQ(2, 0xf);
+ WREG_SEQ(3, 0);
+ WREG_SEQ(4, 0xe);
+
+ pitch = crtc->fb->pitches[0] / (crtc->fb->bits_per_pixel / 8);
+ if (crtc->fb->bits_per_pixel == 24)
+ pitch = pitch >> (4 - bppshift);
+ else
+ pitch = pitch >> (4 - bppshift);
+
+ hdisplay = mode->hdisplay / 8 - 1;
+ hsyncstart = mode->hsync_start / 8 - 1;
+ hsyncend = mode->hsync_end / 8 - 1;
+ htotal = mode->htotal / 8 - 1;
+
+ /* Work around hardware quirk */
+ if ((htotal & 0x07) == 0x06 || (htotal & 0x07) == 0x04)
+ htotal++;
+
+ vdisplay = mode->vdisplay - 1;
+ vsyncstart = mode->vsync_start - 1;
+ vsyncend = mode->vsync_end - 1;
+ vtotal = mode->vtotal - 2;
+
+ WREG_GFX(0, 0);
+ WREG_GFX(1, 0);
+ WREG_GFX(2, 0);
+ WREG_GFX(3, 0);
+ WREG_GFX(4, 0);
+ WREG_GFX(5, 0x40);
+ WREG_GFX(6, 0x5);
+ WREG_GFX(7, 0xf);
+ WREG_GFX(8, 0xf);
+
+ WREG_CRT(0, htotal - 4);
+ WREG_CRT(1, hdisplay);
+ WREG_CRT(2, hdisplay);
+ WREG_CRT(3, (htotal & 0x1F) | 0x80);
+ WREG_CRT(4, hsyncstart);
+ WREG_CRT(5, ((htotal & 0x20) << 2) | (hsyncend & 0x1F));
+ WREG_CRT(6, vtotal & 0xFF);
+ WREG_CRT(7, ((vtotal & 0x100) >> 8) |
+ ((vdisplay & 0x100) >> 7) |
+ ((vsyncstart & 0x100) >> 6) |
+ ((vdisplay & 0x100) >> 5) |
+ ((vdisplay & 0x100) >> 4) | /* linecomp */
+ ((vtotal & 0x200) >> 4)|
+ ((vdisplay & 0x200) >> 3) |
+ ((vsyncstart & 0x200) >> 2));
+ WREG_CRT(9, ((vdisplay & 0x200) >> 4) |
+ ((vdisplay & 0x200) >> 3));
+ WREG_CRT(10, 0);
+ WREG_CRT(11, 0);
+ WREG_CRT(12, 0);
+ WREG_CRT(13, 0);
+ WREG_CRT(14, 0);
+ WREG_CRT(15, 0);
+ WREG_CRT(16, vsyncstart & 0xFF);
+ WREG_CRT(17, (vsyncend & 0x0F) | 0x20);
+ WREG_CRT(18, vdisplay & 0xFF);
+ WREG_CRT(19, pitch & 0xFF);
+ WREG_CRT(20, 0);
+ WREG_CRT(21, vdisplay & 0xFF);
+ WREG_CRT(22, (vtotal + 1) & 0xFF);
+ WREG_CRT(23, 0xc3);
+ WREG_CRT(24, vdisplay & 0xFF);
+
+ ext_vga[0] = 0;
+ ext_vga[5] = 0;
+
+ /* TODO interlace */
+
+ ext_vga[0] |= (pitch & 0x300) >> 4;
+ ext_vga[1] = (((htotal - 4) & 0x100) >> 8) |
+ ((hdisplay & 0x100) >> 7) |
+ ((hsyncstart & 0x100) >> 6) |
+ (htotal & 0x40);
+ ext_vga[2] = ((vtotal & 0xc00) >> 10) |
+ ((vdisplay & 0x400) >> 8) |
+ ((vdisplay & 0xc00) >> 7) |
+ ((vsyncstart & 0xc00) >> 5) |
+ ((vdisplay & 0x400) >> 3);
+ if (crtc->fb->bits_per_pixel == 24)
+ ext_vga[3] = (((1 << bppshift) * 3) - 1) | 0x80;
+ else
+ ext_vga[3] = ((1 << bppshift) - 1) | 0x80;
+ ext_vga[4] = 0;
+ if (mdev->type == G200_WB)
+ ext_vga[1] |= 0x88;
+
+ ext_vga_index24 = 0x05;
+
+ /* Set pixel clocks */
+ misc = 0x2d;
+ WREG8(MGA_MISC_OUT, misc);
+
+ mga_crtc_set_plls(mdev, mode->clock);
+
+ for (i = 0; i < 6; i++) {
+ WREG_ECRT(i, ext_vga[i]);
+ }
+
+ if (mdev->type == G200_ER)
+ WREG_ECRT(24, ext_vga_index24);
+
+ if (mdev->type == G200_EV) {
+ WREG_ECRT(6, 0);
+ }
+
+ WREG_ECRT(0, ext_vga[0]);
+ /* Enable mga pixel clock */
+ misc = 0x2d;
+
+ WREG8(MGA_MISC_OUT, misc);
+
+ if (adjusted_mode)
+ memcpy(&mdev->mode, mode, sizeof(struct drm_display_mode));
+
+ mga_crtc_do_set_base(crtc, old_fb, x, y, 0);
+
+ /* reset tagfifo */
+ if (mdev->type == G200_ER) {
+ u32 mem_ctl = RREG32(MGAREG_MEMCTL);
+ u8 seq1;
+
+ /* screen off */
+ WREG8(MGAREG_SEQ_INDEX, 0x01);
+ seq1 = RREG8(MGAREG_SEQ_DATA) | 0x20;
+ WREG8(MGAREG_SEQ_DATA, seq1);
+
+ WREG32(MGAREG_MEMCTL, mem_ctl | 0x00200000);
+ udelay(1000);
+ WREG32(MGAREG_MEMCTL, mem_ctl & ~0x00200000);
+
+ WREG8(MGAREG_SEQ_DATA, seq1 & ~0x20);
+ }
+
+
+ if (IS_G200_SE(mdev)) {
+ if (mdev->reg_1e24 >= 0x02) {
+ u8 hi_pri_lvl;
+ u32 bpp;
+ u32 mb;
+
+ if (crtc->fb->bits_per_pixel > 16)
+ bpp = 32;
+ else if (crtc->fb->bits_per_pixel > 8)
+ bpp = 16;
+ else
+ bpp = 8;
+
+ mb = (mode->clock * bpp) / 1000;
+ if (mb > 3100)
+ hi_pri_lvl = 0;
+ else if (mb > 2600)
+ hi_pri_lvl = 1;
+ else if (mb > 1900)
+ hi_pri_lvl = 2;
+ else if (mb > 1160)
+ hi_pri_lvl = 3;
+ else if (mb > 440)
+ hi_pri_lvl = 4;
+ else
+ hi_pri_lvl = 5;
+
+ WREG8(0x1fde, 0x06);
+ WREG8(0x1fdf, hi_pri_lvl);
+ } else {
+ if (mdev->reg_1e24 >= 0x01)
+ WREG8(0x1fdf, 0x03);
+ else
+ WREG8(0x1fdf, 0x04);
+ }
+ }
+ return 0;
+}
+
+#if 0 /* code from mjg to attempt D3 on crtc dpms off - revisit later */
+static int mga_suspend(struct drm_crtc *crtc)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ struct pci_dev *pdev = dev->pdev;
+ int option;
+
+ if (mdev->suspended)
+ return 0;
+
+ WREG_SEQ(1, 0x20);
+ WREG_ECRT(1, 0x30);
+ /* Disable the pixel clock */
+ WREG_DAC(0x1a, 0x05);
+ /* Power down the DAC */
+ WREG_DAC(0x1e, 0x18);
+ /* Power down the pixel PLL */
+ WREG_DAC(0x1a, 0x0d);
+
+ /* Disable PLLs and clocks */
+ pci_read_config_dword(pdev, PCI_MGA_OPTION, &option);
+ option &= ~(0x1F8024);
+ pci_write_config_dword(pdev, PCI_MGA_OPTION, option);
+ pci_set_power_state(pdev, PCI_D3hot);
+ pci_disable_device(pdev);
+
+ mdev->suspended = true;
+
+ return 0;
+}
+
+static int mga_resume(struct drm_crtc *crtc)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ struct pci_dev *pdev = dev->pdev;
+ int option;
+
+ if (!mdev->suspended)
+ return 0;
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_enable_device(pdev);
+
+ /* Disable sysclk */
+ pci_read_config_dword(pdev, PCI_MGA_OPTION, &option);
+ option &= ~(0x4);
+ pci_write_config_dword(pdev, PCI_MGA_OPTION, option);
+
+ mdev->suspended = false;
+
+ return 0;
+}
+
+#endif
+
+static void mga_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ u8 seq1 = 0, crtcext1 = 0;
+
+ switch (mode) {
+ case DRM_MODE_DPMS_ON:
+ seq1 = 0;
+ crtcext1 = 0;
+ mga_crtc_load_lut(crtc);
+ break;
+ case DRM_MODE_DPMS_STANDBY:
+ seq1 = 0x20;
+ crtcext1 = 0x10;
+ break;
+ case DRM_MODE_DPMS_SUSPEND:
+ seq1 = 0x20;
+ crtcext1 = 0x20;
+ break;
+ case DRM_MODE_DPMS_OFF:
+ seq1 = 0x20;
+ crtcext1 = 0x30;
+ break;
+ }
+
+#if 0
+ if (mode == DRM_MODE_DPMS_OFF) {
+ mga_suspend(crtc);
+ }
+#endif
+ WREG8(MGAREG_SEQ_INDEX, 0x01);
+ seq1 |= RREG8(MGAREG_SEQ_DATA) & ~0x20;
+ mga_wait_vsync(mdev);
+ mga_wait_busy(mdev);
+ WREG8(MGAREG_SEQ_DATA, seq1);
+ msleep(20);
+ WREG8(MGAREG_CRTCEXT_INDEX, 0x01);
+ crtcext1 |= RREG8(MGAREG_CRTCEXT_DATA) & ~0x30;
+ WREG8(MGAREG_CRTCEXT_DATA, crtcext1);
+
+#if 0
+ if (mode == DRM_MODE_DPMS_ON && mdev->suspended == true) {
+ mga_resume(crtc);
+ drm_helper_resume_force_mode(dev);
+ }
+#endif
+}
+
+/*
+ * This is called before a mode is programmed. A typical use might be to
+ * enable DPMS during the programming to avoid seeing intermediate stages,
+ * but that's not relevant to us
+ */
+static void mga_crtc_prepare(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ u8 tmp;
+
+ /* mga_resume(crtc);*/
+
+ WREG8(MGAREG_CRTC_INDEX, 0x11);
+ tmp = RREG8(MGAREG_CRTC_DATA);
+ WREG_CRT(0x11, tmp | 0x80);
+
+ if (mdev->type == G200_SE_A || mdev->type == G200_SE_B) {
+ WREG_SEQ(0, 1);
+ msleep(50);
+ WREG_SEQ(1, 0x20);
+ msleep(20);
+ } else {
+ WREG8(MGAREG_SEQ_INDEX, 0x1);
+ tmp = RREG8(MGAREG_SEQ_DATA);
+
+ /* start sync reset */
+ WREG_SEQ(0, 1);
+ WREG_SEQ(1, tmp | 0x20);
+ }
+
+ if (mdev->type == G200_WB)
+ mga_g200wb_prepare(crtc);
+
+ WREG_CRT(17, 0);
+}
+
+/*
+ * This is called after a mode is programmed. It should reverse anything done
+ * by the prepare function
+ */
+static void mga_crtc_commit(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct mga_device *mdev = dev->dev_private;
+ struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+ u8 tmp;
+
+ if (mdev->type == G200_WB)
+ mga_g200wb_commit(crtc);
+
+ if (mdev->type == G200_SE_A || mdev->type == G200_SE_B) {
+ msleep(50);
+ WREG_SEQ(1, 0x0);
+ msleep(20);
+ WREG_SEQ(0, 0x3);
+ } else {
+ WREG8(MGAREG_SEQ_INDEX, 0x1);
+ tmp = RREG8(MGAREG_SEQ_DATA);
+
+ tmp &= ~0x20;
+ WREG_SEQ(0x1, tmp);
+ WREG_SEQ(0, 3);
+ }
+ crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+/*
+ * The core can pass us a set of gamma values to program. We actually only
+ * use this for 8-bit mode so can't perform smooth fades on deeper modes,
+ * but it's a requirement that we provide the function
+ */
+static void mga_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, uint32_t start, uint32_t size)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+ int end = (start + size > MGAG200_LUT_SIZE) ? MGAG200_LUT_SIZE : start + size;
+ int i;
+
+ for (i = start; i < end; i++) {
+ mga_crtc->lut_r[i] = red[i] >> 8;
+ mga_crtc->lut_g[i] = green[i] >> 8;
+ mga_crtc->lut_b[i] = blue[i] >> 8;
+ }
+ mga_crtc_load_lut(crtc);
+}
+
+/* Simple cleanup function */
+static void mga_crtc_destroy(struct drm_crtc *crtc)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+
+ drm_crtc_cleanup(crtc);
+ kfree(mga_crtc);
+}
+
+/* These provide the minimum set of functions required to handle a CRTC */
+static const struct drm_crtc_funcs mga_crtc_funcs = {
+ .gamma_set = mga_crtc_gamma_set,
+ .set_config = drm_crtc_helper_set_config,
+ .destroy = mga_crtc_destroy,
+};
+
+static const struct drm_crtc_helper_funcs mga_helper_funcs = {
+ .dpms = mga_crtc_dpms,
+ .mode_fixup = mga_crtc_mode_fixup,
+ .mode_set = mga_crtc_mode_set,
+ .mode_set_base = mga_crtc_mode_set_base,
+ .prepare = mga_crtc_prepare,
+ .commit = mga_crtc_commit,
+ .load_lut = mga_crtc_load_lut,
+};
+
+/* CRTC setup */
+static void mga_crtc_init(struct drm_device *dev)
+{
+ struct mga_device *mdev = dev->dev_private;
+ struct mga_crtc *mga_crtc;
+ int i;
+
+ mga_crtc = kzalloc(sizeof(struct mga_crtc) +
+ (MGAG200FB_CONN_LIMIT * sizeof(struct drm_connector *)),
+ GFP_KERNEL);
+
+ if (mga_crtc == NULL)
+ return;
+
+ drm_crtc_init(dev, &mga_crtc->base, &mga_crtc_funcs);
+
+ drm_mode_crtc_set_gamma_size(&mga_crtc->base, MGAG200_LUT_SIZE);
+ mdev->mode_info.crtc = mga_crtc;
+
+ for (i = 0; i < MGAG200_LUT_SIZE; i++) {
+ mga_crtc->lut_r[i] = i;
+ mga_crtc->lut_g[i] = i;
+ mga_crtc->lut_b[i] = i;
+ }
+
+ drm_crtc_helper_add(&mga_crtc->base, &mga_helper_funcs);
+}
+
+/** Sets the color ramps on behalf of fbcon */
+void mga_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+
+ mga_crtc->lut_r[regno] = red >> 8;
+ mga_crtc->lut_g[regno] = green >> 8;
+ mga_crtc->lut_b[regno] = blue >> 8;
+}
+
+/** Gets the color ramps on behalf of fbcon */
+void mga_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, int regno)
+{
+ struct mga_crtc *mga_crtc = to_mga_crtc(crtc);
+
+ *red = (u16)mga_crtc->lut_r[regno] << 8;
+ *green = (u16)mga_crtc->lut_g[regno] << 8;
+ *blue = (u16)mga_crtc->lut_b[regno] << 8;
+}
+
+/*
+ * The encoder comes after the CRTC in the output pipeline, but before
+ * the connector. It's responsible for ensuring that the digital
+ * stream is appropriately converted into the output format. Setup is
+ * very simple in this case - all we have to do is inform qemu of the
+ * colour depth in order to ensure that it displays appropriately
+ */
+
+/*
+ * These functions are analagous to those in the CRTC code, but are intended
+ * to handle any encoder-specific limitations
+ */
+static bool mga_encoder_mode_fixup(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void mga_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+
+}
+
+static void mga_encoder_dpms(struct drm_encoder *encoder, int state)
+{
+ return;
+}
+
+static void mga_encoder_prepare(struct drm_encoder *encoder)
+{
+}
+
+static void mga_encoder_commit(struct drm_encoder *encoder)
+{
+}
+
+void mga_encoder_destroy(struct drm_encoder *encoder)
+{
+ struct mga_encoder *mga_encoder = to_mga_encoder(encoder);
+ drm_encoder_cleanup(encoder);
+ kfree(mga_encoder);
+}
+
+static const struct drm_encoder_helper_funcs mga_encoder_helper_funcs = {
+ .dpms = mga_encoder_dpms,
+ .mode_fixup = mga_encoder_mode_fixup,
+ .mode_set = mga_encoder_mode_set,
+ .prepare = mga_encoder_prepare,
+ .commit = mga_encoder_commit,
+};
+
+static const struct drm_encoder_funcs mga_encoder_encoder_funcs = {
+ .destroy = mga_encoder_destroy,
+};
+
+static struct drm_encoder *mga_encoder_init(struct drm_device *dev)
+{
+ struct drm_encoder *encoder;
+ struct mga_encoder *mga_encoder;
+
+ mga_encoder = kzalloc(sizeof(struct mga_encoder), GFP_KERNEL);
+ if (!mga_encoder)
+ return NULL;
+
+ encoder = &mga_encoder->base;
+ encoder->possible_crtcs = 0x1;
+
+ drm_encoder_init(dev, encoder, &mga_encoder_encoder_funcs,
+ DRM_MODE_ENCODER_DAC);
+ drm_encoder_helper_add(encoder, &mga_encoder_helper_funcs);
+
+ return encoder;
+}
+
+
+static int mga_vga_get_modes(struct drm_connector *connector)
+{
+ struct mga_connector *mga_connector = to_mga_connector(connector);
+ struct edid *edid;
+ int ret = 0;
+
+ edid = drm_get_edid(connector, &mga_connector->i2c->adapter);
+ if (edid) {
+ drm_mode_connector_update_edid_property(connector, edid);
+ ret = drm_add_edid_modes(connector, edid);
+ connector->display_info.raw_edid = NULL;
+ kfree(edid);
+ }
+ return ret;
+}
+
+static int mga_vga_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ /* FIXME: Add bandwidth and g200se limitations */
+
+ if (mode->crtc_hdisplay > 2048 || mode->crtc_hsync_start > 4096 ||
+ mode->crtc_hsync_end > 4096 || mode->crtc_htotal > 4096 ||
+ mode->crtc_vdisplay > 2048 || mode->crtc_vsync_start > 4096 ||
+ mode->crtc_vsync_end > 4096 || mode->crtc_vtotal > 4096) {
+ return MODE_BAD;
+ }
+
+ return MODE_OK;
+}
+
+struct drm_encoder *mga_connector_best_encoder(struct drm_connector
+ *connector)
+{
+ int enc_id = connector->encoder_ids[0];
+ struct drm_mode_object *obj;
+ struct drm_encoder *encoder;
+
+ /* pick the encoder ids */
+ if (enc_id) {
+ obj =
+ drm_mode_object_find(connector->dev, enc_id,
+ DRM_MODE_OBJECT_ENCODER);
+ if (!obj)
+ return NULL;
+ encoder = obj_to_encoder(obj);
+ return encoder;
+ }
+ return NULL;
+}
+
+static enum drm_connector_status mga_vga_detect(struct drm_connector
+ *connector, bool force)
+{
+ return connector_status_connected;
+}
+
+static void mga_connector_destroy(struct drm_connector *connector)
+{
+ struct mga_connector *mga_connector = to_mga_connector(connector);
+ mgag200_i2c_destroy(mga_connector->i2c);
+ drm_connector_cleanup(connector);
+ kfree(connector);
+}
+
+struct drm_connector_helper_funcs mga_vga_connector_helper_funcs = {
+ .get_modes = mga_vga_get_modes,
+ .mode_valid = mga_vga_mode_valid,
+ .best_encoder = mga_connector_best_encoder,
+};
+
+struct drm_connector_funcs mga_vga_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = mga_vga_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .destroy = mga_connector_destroy,
+};
+
+static struct drm_connector *mga_vga_init(struct drm_device *dev)
+{
+ struct drm_connector *connector;
+ struct mga_connector *mga_connector;
+
+ mga_connector = kzalloc(sizeof(struct mga_connector), GFP_KERNEL);
+ if (!mga_connector)
+ return NULL;
+
+ connector = &mga_connector->base;
+
+ drm_connector_init(dev, connector,
+ &mga_vga_connector_funcs, DRM_MODE_CONNECTOR_VGA);
+
+ drm_connector_helper_add(connector, &mga_vga_connector_helper_funcs);
+
+ mga_connector->i2c = mgag200_i2c_create(dev);
+ if (!mga_connector->i2c)
+ DRM_ERROR("failed to add ddc bus\n");
+
+ return connector;
+}
+
+
+int mgag200_modeset_init(struct mga_device *mdev)
+{
+ struct drm_encoder *encoder;
+ struct drm_connector *connector;
+ int ret;
+
+ mdev->mode_info.mode_config_initialized = true;
+
+ mdev->dev->mode_config.max_width = MGAG200_MAX_FB_WIDTH;
+ mdev->dev->mode_config.max_height = MGAG200_MAX_FB_HEIGHT;
+
+ mdev->dev->mode_config.fb_base = mdev->mc.vram_base;
+
+ mga_crtc_init(mdev->dev);
+
+ encoder = mga_encoder_init(mdev->dev);
+ if (!encoder) {
+ DRM_ERROR("mga_encoder_init failed\n");
+ return -1;
+ }
+
+ connector = mga_vga_init(mdev->dev);
+ if (!connector) {
+ DRM_ERROR("mga_vga_init failed\n");
+ return -1;
+ }
+
+ drm_mode_connector_attach_encoder(connector, encoder);
+
+ ret = mgag200_fbdev_init(mdev);
+ if (ret) {
+ DRM_ERROR("mga_fbdev_init failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+void mgag200_modeset_fini(struct mga_device *mdev)
+{
+
+}
diff --git a/drivers/gpu/drm/mgag200/mgag200_reg.h b/drivers/gpu/drm/mgag200/mgag200_reg.h
new file mode 100644
index 000000000000..fb24d8655feb
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_reg.h
@@ -0,0 +1,661 @@
+/*
+ * MGA Millennium (MGA2064W) functions
+ * MGA Mystique (MGA1064SG) functions
+ *
+ * Copyright 1996 The XFree86 Project, Inc.
+ *
+ * Authors
+ * Dirk Hohndel
+ * hohndel@XFree86.Org
+ * David Dawes
+ * dawes@XFree86.Org
+ * Contributors:
+ * Guy DESBIEF, Aix-en-provence, France
+ * g.desbief@aix.pacwan.net
+ * MGA1064SG Mystique register file
+ */
+
+
+#ifndef _MGA_REG_H_
+#define _MGA_REG_H_
+
+#define MGAREG_DWGCTL 0x1c00
+#define MGAREG_MACCESS 0x1c04
+/* the following is a mystique only register */
+#define MGAREG_MCTLWTST 0x1c08
+#define MGAREG_ZORG 0x1c0c
+
+#define MGAREG_PAT0 0x1c10
+#define MGAREG_PAT1 0x1c14
+#define MGAREG_PLNWT 0x1c1c
+
+#define MGAREG_BCOL 0x1c20
+#define MGAREG_FCOL 0x1c24
+
+#define MGAREG_SRC0 0x1c30
+#define MGAREG_SRC1 0x1c34
+#define MGAREG_SRC2 0x1c38
+#define MGAREG_SRC3 0x1c3c
+
+#define MGAREG_XYSTRT 0x1c40
+#define MGAREG_XYEND 0x1c44
+
+#define MGAREG_SHIFT 0x1c50
+/* the following is a mystique only register */
+#define MGAREG_DMAPAD 0x1c54
+#define MGAREG_SGN 0x1c58
+#define MGAREG_LEN 0x1c5c
+
+#define MGAREG_AR0 0x1c60
+#define MGAREG_AR1 0x1c64
+#define MGAREG_AR2 0x1c68
+#define MGAREG_AR3 0x1c6c
+#define MGAREG_AR4 0x1c70
+#define MGAREG_AR5 0x1c74
+#define MGAREG_AR6 0x1c78
+
+#define MGAREG_CXBNDRY 0x1c80
+#define MGAREG_FXBNDRY 0x1c84
+#define MGAREG_YDSTLEN 0x1c88
+#define MGAREG_PITCH 0x1c8c
+
+#define MGAREG_YDST 0x1c90
+#define MGAREG_YDSTORG 0x1c94
+#define MGAREG_YTOP 0x1c98
+#define MGAREG_YBOT 0x1c9c
+
+#define MGAREG_CXLEFT 0x1ca0
+#define MGAREG_CXRIGHT 0x1ca4
+#define MGAREG_FXLEFT 0x1ca8
+#define MGAREG_FXRIGHT 0x1cac
+
+#define MGAREG_XDST 0x1cb0
+
+#define MGAREG_DR0 0x1cc0
+#define MGAREG_DR1 0x1cc4
+#define MGAREG_DR2 0x1cc8
+#define MGAREG_DR3 0x1ccc
+
+#define MGAREG_DR4 0x1cd0
+#define MGAREG_DR5 0x1cd4
+#define MGAREG_DR6 0x1cd8
+#define MGAREG_DR7 0x1cdc
+
+#define MGAREG_DR8 0x1ce0
+#define MGAREG_DR9 0x1ce4
+#define MGAREG_DR10 0x1ce8
+#define MGAREG_DR11 0x1cec
+
+#define MGAREG_DR12 0x1cf0
+#define MGAREG_DR13 0x1cf4
+#define MGAREG_DR14 0x1cf8
+#define MGAREG_DR15 0x1cfc
+
+#define MGAREG_SRCORG 0x2cb4
+#define MGAREG_DSTORG 0x2cb8
+
+/* add or or this to one of the previous "power registers" to start
+ the drawing engine */
+
+#define MGAREG_EXEC 0x0100
+
+#define MGAREG_FIFOSTATUS 0x1e10
+#define MGAREG_Status 0x1e14
+#define MGAREG_CACHEFLUSH 0x1fff
+#define MGAREG_ICLEAR 0x1e18
+#define MGAREG_IEN 0x1e1c
+
+#define MGAREG_VCOUNT 0x1e20
+
+#define MGAREG_Reset 0x1e40
+
+#define MGAREG_OPMODE 0x1e54
+
+/* Warp Registers */
+#define MGAREG_WIADDR 0x1dc0
+#define MGAREG_WIADDR2 0x1dd8
+#define MGAREG_WGETMSB 0x1dc8
+#define MGAREG_WVRTXSZ 0x1dcc
+#define MGAREG_WACCEPTSEQ 0x1dd4
+#define MGAREG_WMISC 0x1e70
+
+#define MGAREG_MEMCTL 0x2e08
+
+/* OPMODE register additives */
+
+#define MGAOPM_DMA_GENERAL (0x00 << 2)
+#define MGAOPM_DMA_BLIT (0x01 << 2)
+#define MGAOPM_DMA_VECTOR (0x10 << 2)
+
+/* MACCESS register additives */
+#define MGAMAC_PW8 0x00
+#define MGAMAC_PW16 0x01
+#define MGAMAC_PW24 0x03 /* not a typo */
+#define MGAMAC_PW32 0x02 /* not a typo */
+#define MGAMAC_BYPASS332 0x10000000
+#define MGAMAC_NODITHER 0x40000000
+#define MGAMAC_DIT555 0x80000000
+
+/* DWGCTL register additives */
+
+/* Lines */
+
+#define MGADWG_LINE_OPEN 0x00
+#define MGADWG_AUTOLINE_OPEN 0x01
+#define MGADWG_LINE_CLOSE 0x02
+#define MGADWG_AUTOLINE_CLOSE 0x03
+
+/* Trapezoids */
+#define MGADWG_TRAP 0x04
+#define MGADWG_TEXTURE_TRAP 0x06
+
+/* BitBlts */
+
+#define MGADWG_BITBLT 0x08
+#define MGADWG_FBITBLT 0x0c
+#define MGADWG_ILOAD 0x09
+#define MGADWG_ILOAD_SCALE 0x0d
+#define MGADWG_ILOAD_FILTER 0x0f
+#define MGADWG_ILOAD_HIQH 0x07
+#define MGADWG_ILOAD_HIQHV 0x0e
+#define MGADWG_IDUMP 0x0a
+
+/* atype access to WRAM */
+
+#define MGADWG_RPL ( 0x00 << 4 )
+#define MGADWG_RSTR ( 0x01 << 4 )
+#define MGADWG_ZI ( 0x03 << 4 )
+#define MGADWG_BLK ( 0x04 << 4 )
+#define MGADWG_I ( 0x07 << 4 )
+
+/* specifies whether bit blits are linear or xy */
+#define MGADWG_LINEAR ( 0x01 << 7 )
+
+/* z drawing mode. use MGADWG_NOZCMP for always */
+
+#define MGADWG_NOZCMP ( 0x00 << 8 )
+#define MGADWG_ZE ( 0x02 << 8 )
+#define MGADWG_ZNE ( 0x03 << 8 )
+#define MGADWG_ZLT ( 0x04 << 8 )
+#define MGADWG_ZLTE ( 0x05 << 8 )
+#define MGADWG_GT ( 0x06 << 8 )
+#define MGADWG_GTE ( 0x07 << 8 )
+
+/* use this to force colour expansion circuitry to do its stuff */
+
+#define MGADWG_SOLID ( 0x01 << 11 )
+
+/* ar register at zero */
+
+#define MGADWG_ARZERO ( 0x01 << 12 )
+
+#define MGADWG_SGNZERO ( 0x01 << 13 )
+
+#define MGADWG_SHIFTZERO ( 0x01 << 14 )
+
+/* See table on 4-43 for bop ALU operations */
+
+/* See table on 4-44 for translucidity masks */
+
+#define MGADWG_BMONOLEF ( 0x00 << 25 )
+#define MGADWG_BMONOWF ( 0x04 << 25 )
+#define MGADWG_BPLAN ( 0x01 << 25 )
+
+/* note that if bfcol is specified and you're doing a bitblt, it causes
+ a fbitblt to be performed, so check that you obey the fbitblt rules */
+
+#define MGADWG_BFCOL ( 0x02 << 25 )
+#define MGADWG_BUYUV ( 0x0e << 25 )
+#define MGADWG_BU32BGR ( 0x03 << 25 )
+#define MGADWG_BU32RGB ( 0x07 << 25 )
+#define MGADWG_BU24BGR ( 0x0b << 25 )
+#define MGADWG_BU24RGB ( 0x0f << 25 )
+
+#define MGADWG_PATTERN ( 0x01 << 29 )
+#define MGADWG_TRANSC ( 0x01 << 30 )
+#define MGAREG_MISC_WRITE 0x3c2
+#define MGAREG_MISC_READ 0x3cc
+#define MGAREG_MEM_MISC_WRITE 0x1fc2
+#define MGAREG_MEM_MISC_READ 0x1fcc
+
+#define MGAREG_MISC_IOADSEL (0x1 << 0)
+#define MGAREG_MISC_RAMMAPEN (0x1 << 1)
+#define MGAREG_MISC_CLK_SEL_VGA25 (0x0 << 2)
+#define MGAREG_MISC_CLK_SEL_VGA28 (0x1 << 2)
+#define MGAREG_MISC_CLK_SEL_MGA_PIX (0x2 << 2)
+#define MGAREG_MISC_CLK_SEL_MGA_MSK (0x3 << 2)
+#define MGAREG_MISC_VIDEO_DIS (0x1 << 4)
+#define MGAREG_MISC_HIGH_PG_SEL (0x1 << 5)
+
+/* MMIO VGA registers */
+#define MGAREG_SEQ_INDEX 0x1fc4
+#define MGAREG_SEQ_DATA 0x1fc5
+#define MGAREG_CRTC_INDEX 0x1fd4
+#define MGAREG_CRTC_DATA 0x1fd5
+#define MGAREG_CRTCEXT_INDEX 0x1fde
+#define MGAREG_CRTCEXT_DATA 0x1fdf
+
+
+
+/* MGA bits for registers PCI_OPTION_REG */
+#define MGA1064_OPT_SYS_CLK_PCI ( 0x00 << 0 )
+#define MGA1064_OPT_SYS_CLK_PLL ( 0x01 << 0 )
+#define MGA1064_OPT_SYS_CLK_EXT ( 0x02 << 0 )
+#define MGA1064_OPT_SYS_CLK_MSK ( 0x03 << 0 )
+
+#define MGA1064_OPT_SYS_CLK_DIS ( 0x01 << 2 )
+#define MGA1064_OPT_G_CLK_DIV_1 ( 0x01 << 3 )
+#define MGA1064_OPT_M_CLK_DIV_1 ( 0x01 << 4 )
+
+#define MGA1064_OPT_SYS_PLL_PDN ( 0x01 << 5 )
+#define MGA1064_OPT_VGA_ION ( 0x01 << 8 )
+
+/* MGA registers in PCI config space */
+#define PCI_MGA_INDEX 0x44
+#define PCI_MGA_DATA 0x48
+#define PCI_MGA_OPTION 0x40
+#define PCI_MGA_OPTION2 0x50
+#define PCI_MGA_OPTION3 0x54
+
+#define RAMDAC_OFFSET 0x3c00
+
+/* TVP3026 direct registers */
+
+#define TVP3026_INDEX 0x00
+#define TVP3026_WADR_PAL 0x00
+#define TVP3026_COL_PAL 0x01
+#define TVP3026_PIX_RD_MSK 0x02
+#define TVP3026_RADR_PAL 0x03
+#define TVP3026_CUR_COL_ADDR 0x04
+#define TVP3026_CUR_COL_DATA 0x05
+#define TVP3026_DATA 0x0a
+#define TVP3026_CUR_RAM 0x0b
+#define TVP3026_CUR_XLOW 0x0c
+#define TVP3026_CUR_XHI 0x0d
+#define TVP3026_CUR_YLOW 0x0e
+#define TVP3026_CUR_YHI 0x0f
+
+/* TVP3026 indirect registers */
+
+#define TVP3026_SILICON_REV 0x01
+#define TVP3026_CURSOR_CTL 0x06
+#define TVP3026_LATCH_CTL 0x0f
+#define TVP3026_TRUE_COLOR_CTL 0x18
+#define TVP3026_MUX_CTL 0x19
+#define TVP3026_CLK_SEL 0x1a
+#define TVP3026_PAL_PAGE 0x1c
+#define TVP3026_GEN_CTL 0x1d
+#define TVP3026_MISC_CTL 0x1e
+#define TVP3026_GEN_IO_CTL 0x2a
+#define TVP3026_GEN_IO_DATA 0x2b
+#define TVP3026_PLL_ADDR 0x2c
+#define TVP3026_PIX_CLK_DATA 0x2d
+#define TVP3026_MEM_CLK_DATA 0x2e
+#define TVP3026_LOAD_CLK_DATA 0x2f
+#define TVP3026_KEY_RED_LOW 0x32
+#define TVP3026_KEY_RED_HI 0x33
+#define TVP3026_KEY_GREEN_LOW 0x34
+#define TVP3026_KEY_GREEN_HI 0x35
+#define TVP3026_KEY_BLUE_LOW 0x36
+#define TVP3026_KEY_BLUE_HI 0x37
+#define TVP3026_KEY_CTL 0x38
+#define TVP3026_MCLK_CTL 0x39
+#define TVP3026_SENSE_TEST 0x3a
+#define TVP3026_TEST_DATA 0x3b
+#define TVP3026_CRC_LSB 0x3c
+#define TVP3026_CRC_MSB 0x3d
+#define TVP3026_CRC_CTL 0x3e
+#define TVP3026_ID 0x3f
+#define TVP3026_RESET 0xff
+
+
+/* MGA1064 DAC Register file */
+/* MGA1064 direct registers */
+
+#define MGA1064_INDEX 0x00
+#define MGA1064_WADR_PAL 0x00
+#define MGA1064_SPAREREG 0x00
+#define MGA1064_COL_PAL 0x01
+#define MGA1064_PIX_RD_MSK 0x02
+#define MGA1064_RADR_PAL 0x03
+#define MGA1064_DATA 0x0a
+
+#define MGA1064_CUR_XLOW 0x0c
+#define MGA1064_CUR_XHI 0x0d
+#define MGA1064_CUR_YLOW 0x0e
+#define MGA1064_CUR_YHI 0x0f
+
+/* MGA1064 indirect registers */
+#define MGA1064_DVI_PIPE_CTL 0x03
+#define MGA1064_CURSOR_BASE_ADR_LOW 0x04
+#define MGA1064_CURSOR_BASE_ADR_HI 0x05
+#define MGA1064_CURSOR_CTL 0x06
+#define MGA1064_CURSOR_COL0_RED 0x08
+#define MGA1064_CURSOR_COL0_GREEN 0x09
+#define MGA1064_CURSOR_COL0_BLUE 0x0a
+
+#define MGA1064_CURSOR_COL1_RED 0x0c
+#define MGA1064_CURSOR_COL1_GREEN 0x0d
+#define MGA1064_CURSOR_COL1_BLUE 0x0e
+
+#define MGA1064_CURSOR_COL2_RED 0x010
+#define MGA1064_CURSOR_COL2_GREEN 0x011
+#define MGA1064_CURSOR_COL2_BLUE 0x012
+
+#define MGA1064_VREF_CTL 0x018
+
+#define MGA1064_MUL_CTL 0x19
+#define MGA1064_MUL_CTL_8bits 0x0
+#define MGA1064_MUL_CTL_15bits 0x01
+#define MGA1064_MUL_CTL_16bits 0x02
+#define MGA1064_MUL_CTL_24bits 0x03
+#define MGA1064_MUL_CTL_32bits 0x04
+#define MGA1064_MUL_CTL_2G8V16bits 0x05
+#define MGA1064_MUL_CTL_G16V16bits 0x06
+#define MGA1064_MUL_CTL_32_24bits 0x07
+
+#define MGA1064_PIX_CLK_CTL 0x1a
+#define MGA1064_PIX_CLK_CTL_CLK_DIS ( 0x01 << 2 )
+#define MGA1064_PIX_CLK_CTL_CLK_POW_DOWN ( 0x01 << 3 )
+#define MGA1064_PIX_CLK_CTL_SEL_PCI ( 0x00 << 0 )
+#define MGA1064_PIX_CLK_CTL_SEL_PLL ( 0x01 << 0 )
+#define MGA1064_PIX_CLK_CTL_SEL_EXT ( 0x02 << 0 )
+#define MGA1064_PIX_CLK_CTL_SEL_MSK ( 0x03 << 0 )
+
+#define MGA1064_GEN_CTL 0x1d
+#define MGA1064_GEN_CTL_SYNC_ON_GREEN_DIS (0x01 << 5)
+#define MGA1064_MISC_CTL 0x1e
+#define MGA1064_MISC_CTL_DAC_EN ( 0x01 << 0 )
+#define MGA1064_MISC_CTL_VGA ( 0x01 << 1 )
+#define MGA1064_MISC_CTL_DIS_CON ( 0x03 << 1 )
+#define MGA1064_MISC_CTL_MAFC ( 0x02 << 1 )
+#define MGA1064_MISC_CTL_VGA8 ( 0x01 << 3 )
+#define MGA1064_MISC_CTL_DAC_RAM_CS ( 0x01 << 4 )
+
+#define MGA1064_GEN_IO_CTL2 0x29
+#define MGA1064_GEN_IO_CTL 0x2a
+#define MGA1064_GEN_IO_DATA 0x2b
+#define MGA1064_SYS_PLL_M 0x2c
+#define MGA1064_SYS_PLL_N 0x2d
+#define MGA1064_SYS_PLL_P 0x2e
+#define MGA1064_SYS_PLL_STAT 0x2f
+
+#define MGA1064_REMHEADCTL 0x30
+#define MGA1064_REMHEADCTL_CLKDIS ( 0x01 << 0 )
+#define MGA1064_REMHEADCTL_CLKSL_OFF ( 0x00 << 1 )
+#define MGA1064_REMHEADCTL_CLKSL_PLL ( 0x01 << 1 )
+#define MGA1064_REMHEADCTL_CLKSL_PCI ( 0x02 << 1 )
+#define MGA1064_REMHEADCTL_CLKSL_MSK ( 0x03 << 1 )
+
+#define MGA1064_REMHEADCTL2 0x31
+
+#define MGA1064_ZOOM_CTL 0x38
+#define MGA1064_SENSE_TST 0x3a
+
+#define MGA1064_CRC_LSB 0x3c
+#define MGA1064_CRC_MSB 0x3d
+#define MGA1064_CRC_CTL 0x3e
+#define MGA1064_COL_KEY_MSK_LSB 0x40
+#define MGA1064_COL_KEY_MSK_MSB 0x41
+#define MGA1064_COL_KEY_LSB 0x42
+#define MGA1064_COL_KEY_MSB 0x43
+#define MGA1064_PIX_PLLA_M 0x44
+#define MGA1064_PIX_PLLA_N 0x45
+#define MGA1064_PIX_PLLA_P 0x46
+#define MGA1064_PIX_PLLB_M 0x48
+#define MGA1064_PIX_PLLB_N 0x49
+#define MGA1064_PIX_PLLB_P 0x4a
+#define MGA1064_PIX_PLLC_M 0x4c
+#define MGA1064_PIX_PLLC_N 0x4d
+#define MGA1064_PIX_PLLC_P 0x4e
+
+#define MGA1064_PIX_PLL_STAT 0x4f
+
+/*Added for G450 dual head*/
+
+#define MGA1064_VID_PLL_STAT 0x8c
+#define MGA1064_VID_PLL_P 0x8D
+#define MGA1064_VID_PLL_M 0x8E
+#define MGA1064_VID_PLL_N 0x8F
+
+/* Modified PLL for G200 Winbond (G200WB) */
+#define MGA1064_WB_PIX_PLLC_M 0xb7
+#define MGA1064_WB_PIX_PLLC_N 0xb6
+#define MGA1064_WB_PIX_PLLC_P 0xb8
+
+/* Modified PLL for G200 Maxim (G200EV) */
+#define MGA1064_EV_PIX_PLLC_M 0xb6
+#define MGA1064_EV_PIX_PLLC_N 0xb7
+#define MGA1064_EV_PIX_PLLC_P 0xb8
+
+/* Modified PLL for G200 EH */
+#define MGA1064_EH_PIX_PLLC_M 0xb6
+#define MGA1064_EH_PIX_PLLC_N 0xb7
+#define MGA1064_EH_PIX_PLLC_P 0xb8
+
+/* Modified PLL for G200 Maxim (G200ER) */
+#define MGA1064_ER_PIX_PLLC_M 0xb7
+#define MGA1064_ER_PIX_PLLC_N 0xb6
+#define MGA1064_ER_PIX_PLLC_P 0xb8
+
+#define MGA1064_DISP_CTL 0x8a
+#define MGA1064_DISP_CTL_DAC1OUTSEL_MASK 0x01
+#define MGA1064_DISP_CTL_DAC1OUTSEL_DIS 0x00
+#define MGA1064_DISP_CTL_DAC1OUTSEL_EN 0x01
+#define MGA1064_DISP_CTL_DAC2OUTSEL_MASK (0x03 << 2)
+#define MGA1064_DISP_CTL_DAC2OUTSEL_DIS 0x00
+#define MGA1064_DISP_CTL_DAC2OUTSEL_CRTC1 (0x01 << 2)
+#define MGA1064_DISP_CTL_DAC2OUTSEL_CRTC2 (0x02 << 2)
+#define MGA1064_DISP_CTL_DAC2OUTSEL_TVE (0x03 << 2)
+#define MGA1064_DISP_CTL_PANOUTSEL_MASK (0x03 << 5)
+#define MGA1064_DISP_CTL_PANOUTSEL_DIS 0x00
+#define MGA1064_DISP_CTL_PANOUTSEL_CRTC1 (0x01 << 5)
+#define MGA1064_DISP_CTL_PANOUTSEL_CRTC2RGB (0x02 << 5)
+#define MGA1064_DISP_CTL_PANOUTSEL_CRTC2656 (0x03 << 5)
+
+#define MGA1064_SYNC_CTL 0x8b
+
+#define MGA1064_PWR_CTL 0xa0
+#define MGA1064_PWR_CTL_DAC2_EN (0x01 << 0)
+#define MGA1064_PWR_CTL_VID_PLL_EN (0x01 << 1)
+#define MGA1064_PWR_CTL_PANEL_EN (0x01 << 2)
+#define MGA1064_PWR_CTL_RFIFO_EN (0x01 << 3)
+#define MGA1064_PWR_CTL_CFIFO_EN (0x01 << 4)
+
+#define MGA1064_PAN_CTL 0xa2
+
+/* Using crtc2 */
+#define MGAREG2_C2CTL 0x10
+#define MGAREG2_C2HPARAM 0x14
+#define MGAREG2_C2HSYNC 0x18
+#define MGAREG2_C2VPARAM 0x1c
+#define MGAREG2_C2VSYNC 0x20
+#define MGAREG2_C2STARTADD0 0x28
+
+#define MGAREG2_C2OFFSET 0x40
+#define MGAREG2_C2DATACTL 0x4c
+
+#define MGAREG_C2CTL 0x3c10
+#define MGAREG_C2CTL_C2_EN 0x01
+
+#define MGAREG_C2_HIPRILVL_M (0x07 << 4)
+#define MGAREG_C2_MAXHIPRI_M (0x07 << 8)
+
+#define MGAREG_C2CTL_PIXCLKSEL_MASK (0x03 << 1)
+#define MGAREG_C2CTL_PIXCLKSELH_MASK (0x01 << 14)
+#define MGAREG_C2CTL_PIXCLKSEL_PCICLK 0x00
+#define MGAREG_C2CTL_PIXCLKSEL_VDOCLK (0x01 << 1)
+#define MGAREG_C2CTL_PIXCLKSEL_PIXELPLL (0x02 << 1)
+#define MGAREG_C2CTL_PIXCLKSEL_VIDEOPLL (0x03 << 1)
+#define MGAREG_C2CTL_PIXCLKSEL_VDCLK (0x01 << 14)
+
+#define MGAREG_C2CTL_PIXCLKSEL_CRISTAL (0x01 << 1) | (0x01 << 14)
+#define MGAREG_C2CTL_PIXCLKSEL_SYSTEMPLL (0x02 << 1) | (0x01 << 14)
+
+#define MGAREG_C2CTL_PIXCLKDIS_MASK (0x01 << 3)
+#define MGAREG_C2CTL_PIXCLKDIS_DISABLE (0x01 << 3)
+
+#define MGAREG_C2CTL_CRTCDACSEL_MASK (0x01 << 20)
+#define MGAREG_C2CTL_CRTCDACSEL_CRTC1 0x00
+#define MGAREG_C2CTL_CRTCDACSEL_CRTC2 (0x01 << 20)
+
+#define MGAREG_C2HPARAM 0x3c14
+#define MGAREG_C2HSYNC 0x3c18
+#define MGAREG_C2VPARAM 0x3c1c
+#define MGAREG_C2VSYNC 0x3c20
+#define MGAREG_C2STARTADD0 0x3c28
+
+#define MGAREG_C2OFFSET 0x3c40
+#define MGAREG_C2DATACTL 0x3c4c
+
+/* video register */
+
+#define MGAREG_BESA1C3ORG 0x3d60
+#define MGAREG_BESA1CORG 0x3d10
+#define MGAREG_BESA1ORG 0x3d00
+#define MGAREG_BESCTL 0x3d20
+#define MGAREG_BESGLOBCTL 0x3dc0
+#define MGAREG_BESHCOORD 0x3d28
+#define MGAREG_BESHISCAL 0x3d30
+#define MGAREG_BESHSRCEND 0x3d3c
+#define MGAREG_BESHSRCLST 0x3d50
+#define MGAREG_BESHSRCST 0x3d38
+#define MGAREG_BESLUMACTL 0x3d40
+#define MGAREG_BESPITCH 0x3d24
+#define MGAREG_BESV1SRCLST 0x3d54
+#define MGAREG_BESV1WGHT 0x3d48
+#define MGAREG_BESVCOORD 0x3d2c
+#define MGAREG_BESVISCAL 0x3d34
+
+/* texture engine registers */
+
+#define MGAREG_TMR0 0x2c00
+#define MGAREG_TMR1 0x2c04
+#define MGAREG_TMR2 0x2c08
+#define MGAREG_TMR3 0x2c0c
+#define MGAREG_TMR4 0x2c10
+#define MGAREG_TMR5 0x2c14
+#define MGAREG_TMR6 0x2c18
+#define MGAREG_TMR7 0x2c1c
+#define MGAREG_TMR8 0x2c20
+#define MGAREG_TEXORG 0x2c24
+#define MGAREG_TEXWIDTH 0x2c28
+#define MGAREG_TEXHEIGHT 0x2c2c
+#define MGAREG_TEXCTL 0x2c30
+# define MGA_TW4 (0x00000000)
+# define MGA_TW8 (0x00000001)
+# define MGA_TW15 (0x00000002)
+# define MGA_TW16 (0x00000003)
+# define MGA_TW12 (0x00000004)
+# define MGA_TW32 (0x00000006)
+# define MGA_TW8A (0x00000007)
+# define MGA_TW8AL (0x00000008)
+# define MGA_TW422 (0x0000000A)
+# define MGA_TW422UYVY (0x0000000B)
+# define MGA_PITCHLIN (0x00000100)
+# define MGA_NOPERSPECTIVE (0x00200000)
+# define MGA_TAKEY (0x02000000)
+# define MGA_TAMASK (0x04000000)
+# define MGA_CLAMPUV (0x18000000)
+# define MGA_TEXMODULATE (0x20000000)
+#define MGAREG_TEXCTL2 0x2c3c
+# define MGA_G400_TC2_MAGIC (0x00008000)
+# define MGA_TC2_DECALBLEND (0x00000001)
+# define MGA_TC2_IDECAL (0x00000002)
+# define MGA_TC2_DECALDIS (0x00000004)
+# define MGA_TC2_CKSTRANSDIS (0x00000010)
+# define MGA_TC2_BORDEREN (0x00000020)
+# define MGA_TC2_SPECEN (0x00000040)
+# define MGA_TC2_DUALTEX (0x00000080)
+# define MGA_TC2_TABLEFOG (0x00000100)
+# define MGA_TC2_BUMPMAP (0x00000200)
+# define MGA_TC2_SELECT_TMU1 (0x80000000)
+#define MGAREG_TEXTRANS 0x2c34
+#define MGAREG_TEXTRANSHIGH 0x2c38
+#define MGAREG_TEXFILTER 0x2c58
+# define MGA_MIN_NRST (0x00000000)
+# define MGA_MIN_BILIN (0x00000002)
+# define MGA_MIN_ANISO (0x0000000D)
+# define MGA_MAG_NRST (0x00000000)
+# define MGA_MAG_BILIN (0x00000020)
+# define MGA_FILTERALPHA (0x00100000)
+#define MGAREG_ALPHASTART 0x2c70
+#define MGAREG_ALPHAXINC 0x2c74
+#define MGAREG_ALPHAYINC 0x2c78
+#define MGAREG_ALPHACTRL 0x2c7c
+# define MGA_SRC_ZERO (0x00000000)
+# define MGA_SRC_ONE (0x00000001)
+# define MGA_SRC_DST_COLOR (0x00000002)
+# define MGA_SRC_ONE_MINUS_DST_COLOR (0x00000003)
+# define MGA_SRC_ALPHA (0x00000004)
+# define MGA_SRC_ONE_MINUS_SRC_ALPHA (0x00000005)
+# define MGA_SRC_DST_ALPHA (0x00000006)
+# define MGA_SRC_ONE_MINUS_DST_ALPHA (0x00000007)
+# define MGA_SRC_SRC_ALPHA_SATURATE (0x00000008)
+# define MGA_SRC_BLEND_MASK (0x0000000f)
+# define MGA_DST_ZERO (0x00000000)
+# define MGA_DST_ONE (0x00000010)
+# define MGA_DST_SRC_COLOR (0x00000020)
+# define MGA_DST_ONE_MINUS_SRC_COLOR (0x00000030)
+# define MGA_DST_SRC_ALPHA (0x00000040)
+# define MGA_DST_ONE_MINUS_SRC_ALPHA (0x00000050)
+# define MGA_DST_DST_ALPHA (0x00000060)
+# define MGA_DST_ONE_MINUS_DST_ALPHA (0x00000070)
+# define MGA_DST_BLEND_MASK (0x00000070)
+# define MGA_ALPHACHANNEL (0x00000100)
+# define MGA_VIDEOALPHA (0x00000200)
+# define MGA_DIFFUSEDALPHA (0x01000000)
+# define MGA_MODULATEDALPHA (0x02000000)
+#define MGAREG_TDUALSTAGE0 (0x2CF8)
+#define MGAREG_TDUALSTAGE1 (0x2CFC)
+# define MGA_TDS_COLOR_ARG2_DIFFUSE (0x00000000)
+# define MGA_TDS_COLOR_ARG2_SPECULAR (0x00000001)
+# define MGA_TDS_COLOR_ARG2_FCOL (0x00000002)
+# define MGA_TDS_COLOR_ARG2_PREVSTAGE (0x00000003)
+# define MGA_TDS_COLOR_ALPHA_DIFFUSE (0x00000000)
+# define MGA_TDS_COLOR_ALPHA_FCOL (0x00000004)
+# define MGA_TDS_COLOR_ALPHA_CURRTEX (0x00000008)
+# define MGA_TDS_COLOR_ALPHA_PREVTEX (0x0000000c)
+# define MGA_TDS_COLOR_ALPHA_PREVSTAGE (0x00000010)
+# define MGA_TDS_COLOR_ARG1_REPLICATEALPHA (0x00000020)
+# define MGA_TDS_COLOR_ARG1_INV (0x00000040)
+# define MGA_TDS_COLOR_ARG2_REPLICATEALPHA (0x00000080)
+# define MGA_TDS_COLOR_ARG2_INV (0x00000100)
+# define MGA_TDS_COLOR_ALPHA1INV (0x00000200)
+# define MGA_TDS_COLOR_ALPHA2INV (0x00000400)
+# define MGA_TDS_COLOR_ARG1MUL_ALPHA1 (0x00000800)
+# define MGA_TDS_COLOR_ARG2MUL_ALPHA2 (0x00001000)
+# define MGA_TDS_COLOR_ARG1ADD_MULOUT (0x00002000)
+# define MGA_TDS_COLOR_ARG2ADD_MULOUT (0x00004000)
+# define MGA_TDS_COLOR_MODBRIGHT_2X (0x00008000)
+# define MGA_TDS_COLOR_MODBRIGHT_4X (0x00010000)
+# define MGA_TDS_COLOR_ADD_SUB (0x00000000)
+# define MGA_TDS_COLOR_ADD_ADD (0x00020000)
+# define MGA_TDS_COLOR_ADD2X (0x00040000)
+# define MGA_TDS_COLOR_ADDBIAS (0x00080000)
+# define MGA_TDS_COLOR_BLEND (0x00100000)
+# define MGA_TDS_COLOR_SEL_ARG1 (0x00000000)
+# define MGA_TDS_COLOR_SEL_ARG2 (0x00200000)
+# define MGA_TDS_COLOR_SEL_ADD (0x00400000)
+# define MGA_TDS_COLOR_SEL_MUL (0x00600000)
+# define MGA_TDS_ALPHA_ARG1_INV (0x00800000)
+# define MGA_TDS_ALPHA_ARG2_DIFFUSE (0x00000000)
+# define MGA_TDS_ALPHA_ARG2_FCOL (0x01000000)
+# define MGA_TDS_ALPHA_ARG2_PREVTEX (0x02000000)
+# define MGA_TDS_ALPHA_ARG2_PREVSTAGE (0x03000000)
+# define MGA_TDS_ALPHA_ARG2_INV (0x04000000)
+# define MGA_TDS_ALPHA_ADD (0x08000000)
+# define MGA_TDS_ALPHA_ADDBIAS (0x10000000)
+# define MGA_TDS_ALPHA_ADD2X (0x20000000)
+# define MGA_TDS_ALPHA_SEL_ARG1 (0x00000000)
+# define MGA_TDS_ALPHA_SEL_ARG2 (0x40000000)
+# define MGA_TDS_ALPHA_SEL_ADD (0x80000000)
+# define MGA_TDS_ALPHA_SEL_MUL (0xc0000000)
+
+#define MGAREG_DWGSYNC 0x2c4c
+
+#define MGAREG_AGP_PLL 0x1e4c
+#define MGA_AGP2XPLL_ENABLE 0x1
+#define MGA_AGP2XPLL_DISABLE 0x0
+
+#endif
diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c
new file mode 100644
index 000000000000..12264793108f
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c
@@ -0,0 +1,452 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors: Dave Airlie <airlied@redhat.com>
+ */
+#include "drmP.h"
+#include "mgag200_drv.h"
+#include <ttm/ttm_page_alloc.h>
+
+static inline struct mga_device *
+mgag200_bdev(struct ttm_bo_device *bd)
+{
+ return container_of(bd, struct mga_device, ttm.bdev);
+}
+
+static int
+mgag200_ttm_mem_global_init(struct drm_global_reference *ref)
+{
+ return ttm_mem_global_init(ref->object);
+}
+
+static void
+mgag200_ttm_mem_global_release(struct drm_global_reference *ref)
+{
+ ttm_mem_global_release(ref->object);
+}
+
+static int mgag200_ttm_global_init(struct mga_device *ast)
+{
+ struct drm_global_reference *global_ref;
+ int r;
+
+ global_ref = &ast->ttm.mem_global_ref;
+ global_ref->global_type = DRM_GLOBAL_TTM_MEM;
+ global_ref->size = sizeof(struct ttm_mem_global);
+ global_ref->init = &mgag200_ttm_mem_global_init;
+ global_ref->release = &mgag200_ttm_mem_global_release;
+ r = drm_global_item_ref(global_ref);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM memory accounting "
+ "subsystem.\n");
+ return r;
+ }
+
+ ast->ttm.bo_global_ref.mem_glob =
+ ast->ttm.mem_global_ref.object;
+ global_ref = &ast->ttm.bo_global_ref.ref;
+ global_ref->global_type = DRM_GLOBAL_TTM_BO;
+ global_ref->size = sizeof(struct ttm_bo_global);
+ global_ref->init = &ttm_bo_global_init;
+ global_ref->release = &ttm_bo_global_release;
+ r = drm_global_item_ref(global_ref);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM BO subsystem.\n");
+ drm_global_item_unref(&ast->ttm.mem_global_ref);
+ return r;
+ }
+ return 0;
+}
+
+void
+mgag200_ttm_global_release(struct mga_device *ast)
+{
+ if (ast->ttm.mem_global_ref.release == NULL)
+ return;
+
+ drm_global_item_unref(&ast->ttm.bo_global_ref.ref);
+ drm_global_item_unref(&ast->ttm.mem_global_ref);
+ ast->ttm.mem_global_ref.release = NULL;
+}
+
+
+static void mgag200_bo_ttm_destroy(struct ttm_buffer_object *tbo)
+{
+ struct mgag200_bo *bo;
+
+ bo = container_of(tbo, struct mgag200_bo, bo);
+
+ drm_gem_object_release(&bo->gem);
+ kfree(bo);
+}
+
+bool mgag200_ttm_bo_is_mgag200_bo(struct ttm_buffer_object *bo)
+{
+ if (bo->destroy == &mgag200_bo_ttm_destroy)
+ return true;
+ return false;
+}
+
+static int
+mgag200_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
+ struct ttm_mem_type_manager *man)
+{
+ switch (type) {
+ case TTM_PL_SYSTEM:
+ man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_MASK_CACHING;
+ man->default_caching = TTM_PL_FLAG_CACHED;
+ break;
+ case TTM_PL_VRAM:
+ man->func = &ttm_bo_manager_func;
+ man->flags = TTM_MEMTYPE_FLAG_FIXED |
+ TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->available_caching = TTM_PL_FLAG_UNCACHED |
+ TTM_PL_FLAG_WC;
+ man->default_caching = TTM_PL_FLAG_WC;
+ break;
+ default:
+ DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void
+mgag200_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
+{
+ struct mgag200_bo *mgabo = mgag200_bo(bo);
+
+ if (!mgag200_ttm_bo_is_mgag200_bo(bo))
+ return;
+
+ mgag200_ttm_placement(mgabo, TTM_PL_FLAG_SYSTEM);
+ *pl = mgabo->placement;
+}
+
+static int mgag200_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
+{
+ return 0;
+}
+
+static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem)
+{
+ struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ struct mga_device *mdev = mgag200_bdev(bdev);
+
+ mem->bus.addr = NULL;
+ mem->bus.offset = 0;
+ mem->bus.size = mem->num_pages << PAGE_SHIFT;
+ mem->bus.base = 0;
+ mem->bus.is_iomem = false;
+ if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+ return -EINVAL;
+ switch (mem->mem_type) {
+ case TTM_PL_SYSTEM:
+ /* system memory */
+ return 0;
+ case TTM_PL_VRAM:
+ mem->bus.offset = mem->start << PAGE_SHIFT;
+ mem->bus.base = pci_resource_start(mdev->dev->pdev, 0);
+ mem->bus.is_iomem = true;
+ break;
+ default:
+ return -EINVAL;
+ break;
+ }
+ return 0;
+}
+
+static void mgag200_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+}
+
+static int mgag200_bo_move(struct ttm_buffer_object *bo,
+ bool evict, bool interruptible,
+ bool no_wait_reserve, bool no_wait_gpu,
+ struct ttm_mem_reg *new_mem)
+{
+ int r;
+ r = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
+ return r;
+}
+
+
+static void mgag200_ttm_backend_destroy(struct ttm_tt *tt)
+{
+ ttm_tt_fini(tt);
+ kfree(tt);
+}
+
+static struct ttm_backend_func mgag200_tt_backend_func = {
+ .destroy = &mgag200_ttm_backend_destroy,
+};
+
+
+struct ttm_tt *mgag200_ttm_tt_create(struct ttm_bo_device *bdev,
+ unsigned long size, uint32_t page_flags,
+ struct page *dummy_read_page)
+{
+ struct ttm_tt *tt;
+
+ tt = kzalloc(sizeof(struct ttm_tt), GFP_KERNEL);
+ if (tt == NULL)
+ return NULL;
+ tt->func = &mgag200_tt_backend_func;
+ if (ttm_tt_init(tt, bdev, size, page_flags, dummy_read_page)) {
+ kfree(tt);
+ return NULL;
+ }
+ return tt;
+}
+
+static int mgag200_ttm_tt_populate(struct ttm_tt *ttm)
+{
+ return ttm_pool_populate(ttm);
+}
+
+static void mgag200_ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+ ttm_pool_unpopulate(ttm);
+}
+
+struct ttm_bo_driver mgag200_bo_driver = {
+ .ttm_tt_create = mgag200_ttm_tt_create,
+ .ttm_tt_populate = mgag200_ttm_tt_populate,
+ .ttm_tt_unpopulate = mgag200_ttm_tt_unpopulate,
+ .init_mem_type = mgag200_bo_init_mem_type,
+ .evict_flags = mgag200_bo_evict_flags,
+ .move = mgag200_bo_move,
+ .verify_access = mgag200_bo_verify_access,
+ .io_mem_reserve = &mgag200_ttm_io_mem_reserve,
+ .io_mem_free = &mgag200_ttm_io_mem_free,
+};
+
+int mgag200_mm_init(struct mga_device *mdev)
+{
+ int ret;
+ struct drm_device *dev = mdev->dev;
+ struct ttm_bo_device *bdev = &mdev->ttm.bdev;
+
+ ret = mgag200_ttm_global_init(mdev);
+ if (ret)
+ return ret;
+
+ ret = ttm_bo_device_init(&mdev->ttm.bdev,
+ mdev->ttm.bo_global_ref.ref.object,
+ &mgag200_bo_driver, DRM_FILE_PAGE_OFFSET,
+ true);
+ if (ret) {
+ DRM_ERROR("Error initialising bo driver; %d\n", ret);
+ return ret;
+ }
+
+ ret = ttm_bo_init_mm(bdev, TTM_PL_VRAM, mdev->mc.vram_size >> PAGE_SHIFT);
+ if (ret) {
+ DRM_ERROR("Failed ttm VRAM init: %d\n", ret);
+ return ret;
+ }
+
+ mdev->fb_mtrr = drm_mtrr_add(pci_resource_start(dev->pdev, 0),
+ pci_resource_len(dev->pdev, 0),
+ DRM_MTRR_WC);
+
+ return 0;
+}
+
+void mgag200_mm_fini(struct mga_device *mdev)
+{
+ struct drm_device *dev = mdev->dev;
+ ttm_bo_device_release(&mdev->ttm.bdev);
+
+ mgag200_ttm_global_release(mdev);
+
+ if (mdev->fb_mtrr >= 0) {
+ drm_mtrr_del(mdev->fb_mtrr,
+ pci_resource_start(dev->pdev, 0),
+ pci_resource_len(dev->pdev, 0), DRM_MTRR_WC);
+ mdev->fb_mtrr = -1;
+ }
+}
+
+void mgag200_ttm_placement(struct mgag200_bo *bo, int domain)
+{
+ u32 c = 0;
+ bo->placement.fpfn = 0;
+ bo->placement.lpfn = 0;
+ bo->placement.placement = bo->placements;
+ bo->placement.busy_placement = bo->placements;
+ if (domain & TTM_PL_FLAG_VRAM)
+ bo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
+ if (domain & TTM_PL_FLAG_SYSTEM)
+ bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ if (!c)
+ bo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ bo->placement.num_placement = c;
+ bo->placement.num_busy_placement = c;
+}
+
+int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
+{
+ int ret;
+
+ ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
+ if (ret) {
+ if (ret != -ERESTARTSYS)
+ DRM_ERROR("reserve failed %p\n", bo);
+ return ret;
+ }
+ return 0;
+}
+
+void mgag200_bo_unreserve(struct mgag200_bo *bo)
+{
+ ttm_bo_unreserve(&bo->bo);
+}
+
+int mgag200_bo_create(struct drm_device *dev, int size, int align,
+ uint32_t flags, struct mgag200_bo **pmgabo)
+{
+ struct mga_device *mdev = dev->dev_private;
+ struct mgag200_bo *mgabo;
+ size_t acc_size;
+ int ret;
+
+ mgabo = kzalloc(sizeof(struct mgag200_bo), GFP_KERNEL);
+ if (!mgabo)
+ return -ENOMEM;
+
+ ret = drm_gem_object_init(dev, &mgabo->gem, size);
+ if (ret) {
+ kfree(mgabo);
+ return ret;
+ }
+
+ mgabo->gem.driver_private = NULL;
+ mgabo->bo.bdev = &mdev->ttm.bdev;
+
+ mgag200_ttm_placement(mgabo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM);
+
+ acc_size = ttm_bo_dma_acc_size(&mdev->ttm.bdev, size,
+ sizeof(struct mgag200_bo));
+
+ ret = ttm_bo_init(&mdev->ttm.bdev, &mgabo->bo, size,
+ ttm_bo_type_device, &mgabo->placement,
+ align >> PAGE_SHIFT, 0, false, NULL, acc_size,
+ mgag200_bo_ttm_destroy);
+ if (ret)
+ return ret;
+
+ *pmgabo = mgabo;
+ return 0;
+}
+
+static inline u64 mgag200_bo_gpu_offset(struct mgag200_bo *bo)
+{
+ return bo->bo.offset;
+}
+
+int mgag200_bo_pin(struct mgag200_bo *bo, u32 pl_flag, u64 *gpu_addr)
+{
+ int i, ret;
+
+ if (bo->pin_count) {
+ bo->pin_count++;
+ if (gpu_addr)
+ *gpu_addr = mgag200_bo_gpu_offset(bo);
+ }
+
+ mgag200_ttm_placement(bo, pl_flag);
+ for (i = 0; i < bo->placement.num_placement; i++)
+ bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
+ if (ret)
+ return ret;
+
+ bo->pin_count = 1;
+ if (gpu_addr)
+ *gpu_addr = mgag200_bo_gpu_offset(bo);
+ return 0;
+}
+
+int mgag200_bo_unpin(struct mgag200_bo *bo)
+{
+ int i, ret;
+ if (!bo->pin_count) {
+ DRM_ERROR("unpin bad %p\n", bo);
+ return 0;
+ }
+ bo->pin_count--;
+ if (bo->pin_count)
+ return 0;
+
+ for (i = 0; i < bo->placement.num_placement ; i++)
+ bo->placements[i] &= ~TTM_PL_FLAG_NO_EVICT;
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int mgag200_bo_push_sysram(struct mgag200_bo *bo)
+{
+ int i, ret;
+ if (!bo->pin_count) {
+ DRM_ERROR("unpin bad %p\n", bo);
+ return 0;
+ }
+ bo->pin_count--;
+ if (bo->pin_count)
+ return 0;
+
+ if (bo->kmap.virtual)
+ ttm_bo_kunmap(&bo->kmap);
+
+ mgag200_ttm_placement(bo, TTM_PL_FLAG_SYSTEM);
+ for (i = 0; i < bo->placement.num_placement ; i++)
+ bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;
+
+ ret = ttm_bo_validate(&bo->bo, &bo->placement, false, false, false);
+ if (ret) {
+ DRM_ERROR("pushing to VRAM failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+int mgag200_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *file_priv;
+ struct mga_device *mdev;
+
+ if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET))
+ return drm_mmap(filp, vma);
+
+ file_priv = filp->private_data;
+ mdev = file_priv->minor->dev->dev_private;
+ return ttm_bo_mmap(filp, vma, &mdev->ttm.bdev);
+}
generated by cgit (git 2.34.1) at 2024-05-26 23:10:00 +0000