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drm/ttm: add move to system into drivers 

This moves the to system move into the drivers, and moves all
the unbinds in the move path under driver control

Note: radeon/nouveau already wait so don't duplicate it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201020010319.1692445-4-airlied@gmail.com
This commit is contained in:
Dave Airlie 2020-10-20 11:03:15 +10:00
parent a2dcf77f75
commit 29a1d482e4
6 changed files with 26 additions and 36 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -66,6 +66,8 @@
static int amdgpu_ttm_backend_bind(struct ttm_bo_device *bdev,
struct ttm_tt *ttm,
struct ttm_resource *bo_mem);
static void amdgpu_ttm_backend_unbind(struct ttm_bo_device *bdev,
struct ttm_tt *ttm);
static int amdgpu_ttm_init_on_chip(struct amdgpu_device *adev,
unsigned int type,
@ -561,11 +563,12 @@ static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo, bool evict,
goto out_cleanup;
}
/* move BO (in tmp_mem) to new_mem */
r = ttm_bo_move_to_system(bo, ctx);
r = ttm_bo_wait_ctx(bo, ctx);
if (unlikely(r))
goto out_cleanup;
amdgpu_ttm_backend_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
out_cleanup:
ttm_resource_free(bo, &tmp_mem);
@ -682,9 +685,12 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict,
if (old_mem->mem_type == TTM_PL_TT &&
new_mem->mem_type == TTM_PL_SYSTEM) {
r = ttm_bo_move_to_system(bo, ctx);
r = ttm_bo_wait_ctx(bo, ctx);
if (r)
return r;
amdgpu_ttm_backend_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
return 0;
}

10
drivers/gpu/drm/nouveau/nouveau_bo.c
View File

@ -46,6 +46,7 @@
static int nouveau_ttm_tt_bind(struct ttm_bo_device *bdev, struct ttm_tt *ttm,
struct ttm_resource *reg);
static void nouveau_ttm_tt_unbind(struct ttm_bo_device *bdev, struct ttm_tt *ttm);
/*
* NV10-NV40 tiling helpers
@ -897,10 +898,12 @@ nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict,
if (ret)
goto out;
ret = ttm_bo_move_to_system(bo, ctx);
ret = ttm_bo_wait_ctx(bo, ctx);
if (ret)
goto out;
nouveau_ttm_tt_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, &tmp_reg);
out:
ttm_resource_free(bo, &tmp_reg);
@ -1056,9 +1059,8 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
if (old_reg->mem_type == TTM_PL_TT &&
new_reg->mem_type == TTM_PL_SYSTEM) {
ret = ttm_bo_move_to_system(bo, ctx);
if (ret)
return ret;
nouveau_ttm_tt_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_reg);
goto out;
}

12
drivers/gpu/drm/radeon/radeon_ttm.c
View File

@ -59,6 +59,8 @@ static void radeon_ttm_debugfs_fini(struct radeon_device *rdev);
static int radeon_ttm_tt_bind(struct ttm_bo_device *bdev,
struct ttm_tt *ttm,
struct ttm_resource *bo_mem);
static void radeon_ttm_tt_unbind(struct ttm_bo_device *bdev,
struct ttm_tt *ttm);
struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev)
{
@ -244,10 +246,12 @@ static int radeon_move_vram_ram(struct ttm_buffer_object *bo,
if (unlikely(r)) {
goto out_cleanup;
}
r = ttm_bo_move_to_system(bo, ctx);
r = ttm_bo_wait_ctx(bo, ctx);
if (unlikely(r))
goto out_cleanup;
radeon_ttm_tt_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
out_cleanup:
ttm_resource_free(bo, &tmp_mem);
@ -329,10 +333,8 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
if (old_mem->mem_type == TTM_PL_TT &&
new_mem->mem_type == TTM_PL_SYSTEM) {
r = ttm_bo_move_to_system(bo, ctx);
if (r)
return r;
radeon_ttm_tt_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
return 0;
}

21
drivers/gpu/drm/ttm/ttm_bo_util.c
View File

@ -65,27 +65,6 @@ int ttm_bo_move_to_new_tt_mem(struct ttm_buffer_object *bo,
return 0;
}
int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
struct ttm_operation_ctx *ctx)
{
int ret;
if (bo->mem.mem_type == TTM_PL_SYSTEM)
return 0;
ret = ttm_bo_wait_ctx(bo, ctx);
if (unlikely(ret != 0)) {
if (ret != -ERESTARTSYS)
pr_err("Failed to expire sync object before unbinding TTM\n");
return ret;
}
ttm_bo_tt_unbind(bo);
ttm_resource_free(bo, &bo->mem);
return 0;
}
EXPORT_SYMBOL(ttm_bo_move_to_system);
int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
struct ttm_resource *mem)
{

5
drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
View File

@ -742,9 +742,12 @@ static int vmw_move(struct ttm_buffer_object *bo,
ttm_bo_assign_mem(bo, new_mem);
return 0;
}
ret = ttm_bo_move_to_system(bo, ctx);
ret = ttm_bo_wait_ctx(bo, ctx);
if (ret)
return ret;
vmw_ttm_unbind(bo->bdev, bo->ttm);
ttm_resource_free(bo, &bo->mem);
ttm_bo_assign_mem(bo, new_mem);
return 0;
} else {

2
include/drm/ttm/ttm_bo_driver.h
View File

@ -574,8 +574,6 @@ void ttm_mem_io_free(struct ttm_bo_device *bdev,
int ttm_bo_move_to_new_tt_mem(struct ttm_buffer_object *bo,
struct ttm_operation_ctx *ctx,
struct ttm_resource *new_mem);
int ttm_bo_move_to_system(struct ttm_buffer_object *bo,
struct ttm_operation_ctx *ctx);
/**
* ttm_bo_move_memcpy