Hi
This patch is causing issues for me on both a Raven system and a Tonga (PRIME) system
https://gitlab.freedesktop.org/drm/amd/-/issues/1405
It's only recently been merged into agd5f's tree - which is why I'm only just noticing it
I realise this has now been submitted for rc1 - please can someone take a look
Thanks
Mike
On Mon, 9 Nov 2020 at 00:54, Dave Airlie airlied@gmail.com wrote:
From: Dave Airlie airlied@redhat.com
This removes the code to move resources directly between SYSTEM and VRAM in favour of using the core ttm mulithop code.
Signed-off-by: Dave Airlie airlied@redhat.com
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 136 +++--------------------- 1 file changed, 13 insertions(+), 123 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index ce0d82802333..e1458d575aa9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -512,119 +512,6 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo, return r; }
-/**
- amdgpu_move_vram_ram - Copy VRAM buffer to RAM buffer
- Called by amdgpu_bo_move().
- */
-static int amdgpu_move_vram_ram(struct ttm_buffer_object *bo, bool evict,
struct ttm_operation_ctx *ctx,struct ttm_resource *new_mem)-{
struct ttm_resource *old_mem = &bo->mem;struct ttm_resource tmp_mem;struct ttm_place placements;struct ttm_placement placement;int r;/* create space/pages for new_mem in GTT space */tmp_mem = *new_mem;tmp_mem.mm_node = NULL;placement.num_placement = 1;placement.placement = &placements;placement.num_busy_placement = 1;placement.busy_placement = &placements;placements.fpfn = 0;placements.lpfn = 0;placements.mem_type = TTM_PL_TT;placements.flags = 0;r = ttm_bo_mem_space(bo, &placement, &tmp_mem, ctx);if (unlikely(r)) {pr_err("Failed to find GTT space for blit from VRAM\n");return r;}r = ttm_tt_populate(bo->bdev, bo->ttm, ctx);if (unlikely(r))goto out_cleanup;/* Bind the memory to the GTT space */r = amdgpu_ttm_backend_bind(bo->bdev, bo->ttm, &tmp_mem);if (unlikely(r)) {goto out_cleanup;}/* blit VRAM to GTT */r = amdgpu_move_blit(bo, evict, &tmp_mem, old_mem);if (unlikely(r)) {goto out_cleanup;}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);return r;-}
-/**
- amdgpu_move_ram_vram - Copy buffer from RAM to VRAM
- Called by amdgpu_bo_move().
- */
-static int amdgpu_move_ram_vram(struct ttm_buffer_object *bo, bool evict,
struct ttm_operation_ctx *ctx,struct ttm_resource *new_mem)-{
struct ttm_resource *old_mem = &bo->mem;struct ttm_resource tmp_mem;struct ttm_placement placement;struct ttm_place placements;int r;/* make space in GTT for old_mem buffer */tmp_mem = *new_mem;tmp_mem.mm_node = NULL;placement.num_placement = 1;placement.placement = &placements;placement.num_busy_placement = 1;placement.busy_placement = &placements;placements.fpfn = 0;placements.lpfn = 0;placements.mem_type = TTM_PL_TT;placements.flags = 0;r = ttm_bo_mem_space(bo, &placement, &tmp_mem, ctx);if (unlikely(r)) {pr_err("Failed to find GTT space for blit to VRAM\n");return r;}/* move/bind old memory to GTT space */r = ttm_tt_populate(bo->bdev, bo->ttm, ctx);if (unlikely(r))return r;r = amdgpu_ttm_backend_bind(bo->bdev, bo->ttm, &tmp_mem);if (unlikely(r)) {goto out_cleanup;}ttm_bo_assign_mem(bo, &tmp_mem);/* copy to VRAM */r = amdgpu_move_blit(bo, evict, new_mem, old_mem);if (unlikely(r)) {goto out_cleanup;}-out_cleanup:
ttm_resource_free(bo, &tmp_mem);return r;-}
/**
- amdgpu_mem_visible - Check that memory can be accessed by ttm_bo_move_memcpy
@@ -664,6 +551,17 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict, struct ttm_resource *old_mem = &bo->mem; int r;
if ((old_mem->mem_type == TTM_PL_SYSTEM &&new_mem->mem_type == TTM_PL_VRAM) ||(old_mem->mem_type == TTM_PL_VRAM &&new_mem->mem_type == TTM_PL_SYSTEM)) {hop->fpfn = 0;hop->lpfn = 0;hop->mem_type = TTM_PL_TT;hop->flags = 0;return -EMULTIHOP;}if (new_mem->mem_type == TTM_PL_TT) { r = amdgpu_ttm_backend_bind(bo->bdev, bo->ttm, new_mem); if (r)@@ -717,16 +615,8 @@ static int amdgpu_bo_move(struct ttm_buffer_object *bo, bool evict, goto memcpy; }
if (old_mem->mem_type == TTM_PL_VRAM &&new_mem->mem_type == TTM_PL_SYSTEM) {r = amdgpu_move_vram_ram(bo, evict, ctx, new_mem);} else if (old_mem->mem_type == TTM_PL_SYSTEM &&new_mem->mem_type == TTM_PL_VRAM) {r = amdgpu_move_ram_vram(bo, evict, ctx, new_mem);} else {r = amdgpu_move_blit(bo, evict,new_mem, old_mem);}
r = amdgpu_move_blit(bo, evict,new_mem, old_mem); if (r) {memcpy:
2.27.0
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