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drm/mgag200: Convert mgag200 driver to |struct drm_gem_vram_object| 

The data structure |struct drm_gem_vram_object| and its helpers replace
|struct mgag200_bo|. It's the same implementation; except for the type
names.

v4:
	* cleanups from checkpatch.pl
	* select config option DRM_VRAM_HELPER

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-15-tzimmermann@suse.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Thomas Zimmermann 2019-05-08 10:26:24 +02:00 committed by Gerd Hoffmann
parent b3a25b9af8
commit ebb04eb36f
8 changed files with 110 additions and 351 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/mgag200/Kconfig
View File

@ -3,6 +3,7 @@ config DRM_MGAG200
depends on DRM && PCI && MMU
select DRM_KMS_HELPER
select DRM_TTM
select DRM_VRAM_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

69
drivers/gpu/drm/mgag200/mgag200_cursor.c
View File

@ -23,9 +23,9 @@ static void mga_hide_cursor(struct mga_device *mdev)
WREG8(MGA_CURPOSXL, 0);
WREG8(MGA_CURPOSXH, 0);
if (mdev->cursor.pixels_1->pin_count)
mgag200_bo_unpin(mdev->cursor.pixels_1);
drm_gem_vram_unpin(mdev->cursor.pixels_1);
if (mdev->cursor.pixels_2->pin_count)
mgag200_bo_unpin(mdev->cursor.pixels_2);
drm_gem_vram_unpin(mdev->cursor.pixels_2);
}
int mga_crtc_cursor_set(struct drm_crtc *crtc,
@ -36,12 +36,12 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
{
struct drm_device *dev = crtc->dev;
struct mga_device *mdev = (struct mga_device *)dev->dev_private;
struct mgag200_bo *pixels_1 = mdev->cursor.pixels_1;
struct mgag200_bo *pixels_2 = mdev->cursor.pixels_2;
struct mgag200_bo *pixels_current = mdev->cursor.pixels_current;
struct mgag200_bo *pixels_prev = mdev->cursor.pixels_prev;
struct drm_gem_vram_object *pixels_1 = mdev->cursor.pixels_1;
struct drm_gem_vram_object *pixels_2 = mdev->cursor.pixels_2;
struct drm_gem_vram_object *pixels_current = mdev->cursor.pixels_current;
struct drm_gem_vram_object *pixels_prev = mdev->cursor.pixels_prev;
struct drm_gem_object *obj;
struct mgag200_bo *bo = NULL;
struct drm_gem_vram_object *gbo = NULL;
int ret = 0;
unsigned int i, row, col;
uint32_t colour_set[16];
@ -50,7 +50,7 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
uint32_t this_colour;
bool found = false;
int colour_count = 0;
u64 gpu_addr;
s64 gpu_addr;
u8 reg_index;
u8 this_row[48];
@ -79,44 +79,55 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
if (!obj)
return -ENOENT;
ret = mgag200_bo_reserve(pixels_1, true);
ret = drm_gem_vram_reserve(pixels_1, true);
if (ret) {
WREG8(MGA_CURPOSXL, 0);
WREG8(MGA_CURPOSXH, 0);
goto out_unref;
}
ret = mgag200_bo_reserve(pixels_2, true);
ret = drm_gem_vram_reserve(pixels_2, true);
if (ret) {
WREG8(MGA_CURPOSXL, 0);
WREG8(MGA_CURPOSXH, 0);
mgag200_bo_unreserve(pixels_1);
drm_gem_vram_unreserve(pixels_1);
goto out_unreserve1;
}
/* Move cursor buffers into VRAM if they aren't already */
if (!pixels_1->pin_count) {
ret = mgag200_bo_pin(pixels_1, TTM_PL_FLAG_VRAM,
&mdev->cursor.pixels_1_gpu_addr);
ret = drm_gem_vram_pin(pixels_1, DRM_GEM_VRAM_PL_FLAG_VRAM);
if (ret)
goto out1;
}
if (!pixels_2->pin_count) {
ret = mgag200_bo_pin(pixels_2, TTM_PL_FLAG_VRAM,
&mdev->cursor.pixels_2_gpu_addr);
if (ret) {
mgag200_bo_unpin(pixels_1);
gpu_addr = drm_gem_vram_offset(pixels_1);
if (gpu_addr < 0) {
drm_gem_vram_unpin(pixels_1);
goto out1;
}
mdev->cursor.pixels_1_gpu_addr = gpu_addr;
}
if (!pixels_2->pin_count) {
ret = drm_gem_vram_pin(pixels_2, DRM_GEM_VRAM_PL_FLAG_VRAM);
if (ret) {
drm_gem_vram_unpin(pixels_1);
goto out1;
}
gpu_addr = drm_gem_vram_offset(pixels_2);
if (gpu_addr < 0) {
drm_gem_vram_unpin(pixels_1);
drm_gem_vram_unpin(pixels_2);
goto out1;
}
mdev->cursor.pixels_2_gpu_addr = gpu_addr;
}
bo = gem_to_mga_bo(obj);
ret = mgag200_bo_reserve(bo, true);
gbo = drm_gem_vram_of_gem(obj);
ret = drm_gem_vram_reserve(gbo, true);
if (ret) {
dev_err(&dev->pdev->dev, "failed to reserve user bo\n");
goto out1;
}
if (!bo->kmap.virtual) {
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (!gbo->kmap.virtual) {
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &gbo->kmap);
if (ret) {
dev_err(&dev->pdev->dev, "failed to kmap user buffer updates\n");
goto out2;
@ -126,7 +137,7 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
memset(&colour_set[0], 0, sizeof(uint32_t)*16);
/* width*height*4 = 16384 */
for (i = 0; i < 16384; i += 4) {
this_colour = ioread32(bo->kmap.virtual + i);
this_colour = ioread32(gbo->kmap.virtual + i);
/* No transparency */
if (this_colour>>24 != 0xff &&
this_colour>>24 != 0x0) {
@ -192,7 +203,7 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
for (row = 0; row < 64; row++) {
memset(&this_row[0], 0, 48);
for (col = 0; col < 64; col++) {
this_colour = ioread32(bo->kmap.virtual + 4*(col + 64*row));
this_colour = ioread32(gbo->kmap.virtual + 4*(col + 64*row));
/* write transparent pixels */
if (this_colour>>24 == 0x0) {
this_row[47 - col/8] |= 0x80>>(col%8);
@ -238,15 +249,15 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc,
ttm_bo_kunmap(&pixels_prev->kmap);
out3:
ttm_bo_kunmap(&bo->kmap);
ttm_bo_kunmap(&gbo->kmap);
out2:
mgag200_bo_unreserve(bo);
drm_gem_vram_unreserve(gbo);
out1:
if (ret)
mga_hide_cursor(mdev);
mgag200_bo_unreserve(pixels_1);
drm_gem_vram_unreserve(pixels_1);
out_unreserve1:
mgag200_bo_unreserve(pixels_2);
drm_gem_vram_unreserve(pixels_2);
out_unref:
drm_gem_object_put_unlocked(obj);

5
drivers/gpu/drm/mgag200/mgag200_drv.c
View File

@ -80,9 +80,10 @@ static struct drm_driver driver = {
.minor = DRIVER_MINOR,
.patchlevel = DRIVER_PATCHLEVEL,
.gem_free_object_unlocked = mgag200_gem_free_object,
.gem_free_object_unlocked =
drm_gem_vram_driver_gem_free_object_unlocked,
.dumb_create = mgag200_dumb_create,
.dumb_map_offset = mgag200_dumb_mmap_offset,
.dumb_map_offset = drm_gem_vram_driver_dumb_mmap_offset,
};
static struct pci_driver mgag200_pci_driver = {

62
drivers/gpu/drm/mgag200/mgag200_drv.h
View File

@ -1,6 +1,6 @@
/*
* Copyright 2010 Matt Turner.
* Copyright 2012 Red Hat
* 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
@ -24,6 +24,7 @@
#include <drm/ttm/ttm_module.h>
#include <drm/drm_gem.h>
#include <drm/drm_gem_vram_helper.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
@ -159,13 +160,13 @@ struct mga_cursor {
If either of these is NULL, then don't do hardware cursors, and
fall back to software.
*/
struct mgag200_bo *pixels_1;
struct mgag200_bo *pixels_2;
struct drm_gem_vram_object *pixels_1;
struct drm_gem_vram_object *pixels_2;
u64 pixels_1_gpu_addr, pixels_2_gpu_addr;
/* The currently displayed icon, this points to one of pixels_1, or pixels_2 */
struct mgag200_bo *pixels_current;
struct drm_gem_vram_object *pixels_current;
/* The previously displayed icon */
struct mgag200_bo *pixels_prev;
struct drm_gem_vram_object *pixels_prev;
};
struct mga_mc {
@ -219,23 +220,6 @@ struct mga_device {
u32 unique_rev_id;
};
struct mgag200_bo {
struct ttm_buffer_object bo;
struct ttm_placement placement;
struct ttm_bo_kmap_obj kmap;
struct drm_gem_object gem;
struct ttm_place 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);
}
/* mgag200_mode.c */
int mgag200_modeset_init(struct mga_device *mdev);
void mgag200_modeset_fini(struct mga_device *mdev);
@ -259,45 +243,15 @@ int mgag200_gem_create(struct drm_device *dev,
int mgag200_dumb_create(struct drm_file *file,
struct drm_device *dev,
struct drm_mode_create_dumb *args);
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);
/* mgag200_i2c.c */
struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain);
static inline int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait)
{
int ret;
ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
if (ret) {
if (ret != -ERESTARTSYS && ret != -EBUSY)
DRM_ERROR("reserve failed %p\n", bo);
return ret;
}
return 0;
}
static inline 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 **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);
/* mgag200_cursor.c */
int mga_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
uint32_t handle, uint32_t width, uint32_t height);
int mga_crtc_cursor_move(struct drm_crtc *crtc, int x, int y);

22
drivers/gpu/drm/mgag200/mgag200_fb.c
View File

@ -23,7 +23,7 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev,
{
int i;
struct drm_gem_object *obj;
struct mgag200_bo *bo;
struct drm_gem_vram_object *gbo;
int src_offset, dst_offset;
int bpp = mfbdev->mfb.base.format->cpp[0];
int ret = -EBUSY;
@ -33,7 +33,7 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev,
unsigned long flags;
obj = mfbdev->mfb.obj;
bo = gem_to_mga_bo(obj);
gbo = drm_gem_vram_of_gem(obj);
/*
* try and reserve the BO, if we fail with busy
@ -41,7 +41,7 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev,
* store up the damage until later.
*/
if (drm_can_sleep())
ret = mgag200_bo_reserve(bo, true);
ret = drm_gem_vram_reserve(gbo, true);
if (ret) {
if (ret != -EBUSY)
return;
@ -75,25 +75,27 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev,
mfbdev->x2 = mfbdev->y2 = 0;
spin_unlock_irqrestore(&mfbdev->dirty_lock, flags);
if (!bo->kmap.virtual) {
ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap);
if (!gbo->kmap.virtual) {
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &gbo->kmap);
if (ret) {
DRM_ERROR("failed to kmap fb updates\n");
mgag200_bo_unreserve(bo);
drm_gem_vram_unreserve(gbo);
return;
}
unmap = true;
}
for (i = y; i <= y2; 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, (x2 - x + 1) * bpp);
src_offset = dst_offset =
i * mfbdev->mfb.base.pitches[0] + (x * bpp);
memcpy_toio(gbo->kmap.virtual + src_offset,
mfbdev->sysram + dst_offset, (x2 - x + 1) * bpp);
}
if (unmap)
ttm_bo_kunmap(&bo->kmap);
ttm_bo_kunmap(&gbo->kmap);
mgag200_bo_unreserve(bo);
drm_gem_vram_unreserve(gbo);
}
static void mga_fillrect(struct fb_info *info,

84
drivers/gpu/drm/mgag200/mgag200_main.c
View File

@ -230,11 +230,13 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
}
/* Make small buffers to store a hardware cursor (double buffered icon updates) */
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_1);
mgag200_bo_create(dev, roundup(48*64, PAGE_SIZE), 0, 0,
&mdev->cursor.pixels_2);
if (!mdev->cursor.pixels_2 || !mdev->cursor.pixels_1) {
mdev->cursor.pixels_1 = drm_gem_vram_create(dev, &mdev->ttm.bdev,
roundup(48*64, PAGE_SIZE),
0, 0);
mdev->cursor.pixels_2 = drm_gem_vram_create(dev, &mdev->ttm.bdev,
roundup(48*64, PAGE_SIZE),
0, 0);
if (IS_ERR(mdev->cursor.pixels_2) || IS_ERR(mdev->cursor.pixels_1)) {
mdev->cursor.pixels_1 = NULL;
mdev->cursor.pixels_2 = NULL;
dev_warn(&dev->pdev->dev,
@ -272,7 +274,8 @@ int mgag200_gem_create(struct drm_device *dev,
u32 size, bool iskernel,
struct drm_gem_object **obj)
{
struct mgag200_bo *astbo;
struct mga_device *mdev = dev->dev_private;
struct drm_gem_vram_object *gbo;
int ret;
*obj = NULL;
@ -281,13 +284,14 @@ int mgag200_gem_create(struct drm_device *dev,
if (size == 0)
return -EINVAL;
ret = mgag200_bo_create(dev, size, 0, 0, &astbo);
if (ret) {
gbo = drm_gem_vram_create(dev, &mdev->ttm.bdev, size, 0, false);
if (IS_ERR(gbo)) {
ret = PTR_ERR(gbo);
if (ret != -ERESTARTSYS)
DRM_ERROR("failed to allocate GEM object\n");
return ret;
}
*obj = &astbo->gem;
*obj = &gbo->gem;
return 0;
}
@ -295,64 +299,8 @@ 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;
struct mga_device *mdev = dev->dev_private;
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_put_unlocked(gobj);
if (ret)
return ret;
args->handle = handle;
return 0;
}
static void mgag200_bo_unref(struct mgag200_bo **bo)
{
if ((*bo) == NULL)
return;
ttm_bo_put(&((*bo)->bo));
*bo = NULL;
}
void mgag200_gem_free_object(struct drm_gem_object *obj)
{
struct mgag200_bo *mgag200_bo = gem_to_mga_bo(obj);
mgag200_bo_unref(&mgag200_bo);
}
static inline u64 mgag200_bo_mmap_offset(struct mgag200_bo *bo)
{
return drm_vma_node_offset_addr(&bo->bo.vma_node);
}
int
mgag200_dumb_mmap_offset(struct drm_file *file,
struct drm_device *dev,
uint32_t handle,
uint64_t *offset)
{
struct drm_gem_object *obj;
struct mgag200_bo *bo;
obj = drm_gem_object_lookup(file, handle);
if (obj == NULL)
return -ENOENT;
bo = gem_to_mga_bo(obj);
*offset = mgag200_bo_mmap_offset(bo);
drm_gem_object_put_unlocked(obj);
return 0;
return drm_gem_vram_fill_create_dumb(file, dev, &mdev->ttm.bdev, 0,
false, args);
}

46
drivers/gpu/drm/mgag200/mgag200_mode.c
View File

@ -867,48 +867,57 @@ static int mga_crtc_do_set_base(struct drm_crtc *crtc,
struct mga_device *mdev = crtc->dev->dev_private;
struct drm_gem_object *obj;
struct mga_framebuffer *mga_fb;
struct mgag200_bo *bo;
struct drm_gem_vram_object *gbo;
int ret;
u64 gpu_addr;
s64 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);
gbo = drm_gem_vram_of_gem(obj);
ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return ret;
mgag200_bo_push_sysram(bo);
mgag200_bo_unreserve(bo);
drm_gem_vram_push_to_system(gbo);
drm_gem_vram_unreserve(gbo);
}
mga_fb = to_mga_framebuffer(crtc->primary->fb);
obj = mga_fb->obj;
bo = gem_to_mga_bo(obj);
gbo = drm_gem_vram_of_gem(obj);
ret = mgag200_bo_reserve(bo, false);
ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return ret;
ret = mgag200_bo_pin(bo, TTM_PL_FLAG_VRAM, &gpu_addr);
if (ret) {
mgag200_bo_unreserve(bo);
return ret;
ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM);
if (ret)
goto err_drm_gem_vram_unreserve;
gpu_addr = drm_gem_vram_offset(gbo);
if (gpu_addr < 0) {
ret = (int)gpu_addr;
goto err_drm_gem_vram_unpin;
}
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);
ret = ttm_bo_kmap(&gbo->bo, 0, gbo->bo.num_pages, &gbo->kmap);
if (ret)
DRM_ERROR("failed to kmap fbcon\n");
}
mgag200_bo_unreserve(bo);
drm_gem_vram_unreserve(gbo);
mga_set_start_address(crtc, (u32)gpu_addr);
return 0;
err_drm_gem_vram_unpin:
drm_gem_vram_unpin(gbo);
err_drm_gem_vram_unreserve:
drm_gem_vram_unreserve(gbo);
return ret;
}
static int mga_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
@ -1428,12 +1437,13 @@ static void mga_crtc_disable(struct drm_crtc *crtc)
if (crtc->primary->fb) {
struct mga_framebuffer *mga_fb = to_mga_framebuffer(crtc->primary->fb);
struct drm_gem_object *obj = mga_fb->obj;
struct mgag200_bo *bo = gem_to_mga_bo(obj);
ret = mgag200_bo_reserve(bo, false);
struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(obj);
ret = drm_gem_vram_reserve(gbo, false);
if (ret)
return;
mgag200_bo_push_sysram(bo);
mgag200_bo_unreserve(bo);
drm_gem_vram_push_to_system(gbo);
drm_gem_vram_unreserve(gbo);
}
crtc->primary->fb = NULL;
}

172
drivers/gpu/drm/mgag200/mgag200_ttm.c
View File

@ -36,23 +36,6 @@ mgag200_bdev(struct ttm_bo_device *bd)
return container_of(bd, struct mga_device, ttm.bdev);
}
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);
}
static 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)
@ -78,26 +61,6 @@ mgag200_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
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)
{
struct mgag200_bo *mgabo = mgag200_bo(bo);
return drm_vma_node_verify_access(&mgabo->gem.vma_node,
filp->private_data);
}
static int mgag200_ttm_io_mem_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
@ -162,9 +125,9 @@ struct ttm_bo_driver mgag200_bo_driver = {
.ttm_tt_create = mgag200_ttm_tt_create,
.init_mem_type = mgag200_bo_init_mem_type,
.eviction_valuable = ttm_bo_eviction_valuable,
.evict_flags = mgag200_bo_evict_flags,
.evict_flags = drm_gem_vram_bo_driver_evict_flags,
.move = NULL,
.verify_access = mgag200_bo_verify_access,
.verify_access = drm_gem_vram_bo_driver_verify_access,
.io_mem_reserve = &mgag200_ttm_io_mem_reserve,
.io_mem_free = &mgag200_ttm_io_mem_free,
};
@ -211,137 +174,6 @@ void mgag200_mm_fini(struct mga_device *mdev)
mdev->fb_mtrr = 0;
}
void mgag200_ttm_placement(struct mgag200_bo *bo, int domain)
{
u32 c = 0;
unsigned i;
bo->placement.placement = bo->placements;
bo->placement.busy_placement = bo->placements;
if (domain & TTM_PL_FLAG_VRAM)
bo->placements[c++].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM;
if (domain & TTM_PL_FLAG_SYSTEM)
bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
if (!c)
bo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
bo->placement.num_placement = c;
bo->placement.num_busy_placement = c;
for (i = 0; i < c; ++i) {
bo->placements[i].fpfn = 0;
bo->placements[i].lpfn = 0;
}
}
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->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, false, acc_size,
NULL, NULL, 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)
{
struct ttm_operation_ctx ctx = { false, false };
int i, ret;
if (bo->pin_count) {
bo->pin_count++;
if (gpu_addr)
*gpu_addr = mgag200_bo_gpu_offset(bo);
return 0;
}
mgag200_ttm_placement(bo, pl_flag);
for (i = 0; i < bo->placement.num_placement; i++)
bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
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)
{
struct ttm_operation_ctx ctx = { false, false };
int i;
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].flags &= ~TTM_PL_FLAG_NO_EVICT;
return ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
}
int mgag200_bo_push_sysram(struct mgag200_bo *bo)
{
struct ttm_operation_ctx ctx = { false, false };
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].flags |= TTM_PL_FLAG_NO_EVICT;
ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx);
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 = filp->private_data;