[PATCH] drm/amdgpu: allocate gart memory when it's required (v3)
Felix Kuehling
felix.kuehling at amd.com
Wed Jun 27 17:08:23 UTC 2018
On 2018-06-27 04:28 AM, Junwei Zhang wrote:
> Instead of calling gart memory on every bo pin,
> allocates it on demand
>
> v2: fix error handling
> v3: drop the change for kfd gtt bo mapping, not needed.
>
> Signed-off-by: Junwei Zhang <Jerry.Zhang at amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 6 ++++++
> drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c | 14 ++++++++++++--
> drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 6 ++++++
> drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 8 ++++++++
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 15 +++++++++------
> drivers/gpu/drm/amd/amdgpu/amdgpu_test.c | 5 +++++
> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 13 +++++++++++--
> 7 files changed, 57 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> index 98e3bf8..e3ed08d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> @@ -280,6 +280,12 @@ int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
> goto allocate_mem_pin_bo_failed;
> }
>
> + r = amdgpu_ttm_alloc_gart(&bo->tbo);
> + if (r) {
> + dev_err(adev->dev, "%p bind failed\n", bo);
> + goto allocate_mem_kmap_bo_failed;
> + }
> +
> r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
> if (r) {
> dev_err(adev->dev,
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> index cb88d7e..3079ea8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
> @@ -96,11 +96,16 @@ static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
> if (unlikely(r != 0))
> goto out_cleanup;
> r = amdgpu_bo_pin(sobj, sdomain);
> - saddr = amdgpu_bo_gpu_offset(sobj);
> + if (r) {
> + amdgpu_bo_unreserve(sobj);
> + goto out_cleanup;
> + }
> + r = amdgpu_ttm_alloc_gart(&sobj->tbo);
> amdgpu_bo_unreserve(sobj);
> if (r) {
> goto out_cleanup;
> }
> + saddr = amdgpu_bo_gpu_offset(sobj);
> bp.domain = ddomain;
> r = amdgpu_bo_create(adev, &bp, &dobj);
> if (r) {
> @@ -110,11 +115,16 @@ static void amdgpu_benchmark_move(struct amdgpu_device *adev, unsigned size,
> if (unlikely(r != 0))
> goto out_cleanup;
> r = amdgpu_bo_pin(dobj, ddomain);
> - daddr = amdgpu_bo_gpu_offset(dobj);
> + if (r) {
> + amdgpu_bo_unreserve(sobj);
> + goto out_cleanup;
> + }
> + r = amdgpu_ttm_alloc_gart(&dobj->tbo);
> amdgpu_bo_unreserve(dobj);
> if (r) {
> goto out_cleanup;
> }
> + daddr = amdgpu_bo_gpu_offset(dobj);
>
> if (adev->mman.buffer_funcs) {
> time = amdgpu_benchmark_do_move(adev, size, saddr, daddr, n);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> index 036b6f7..7d6a36b 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
> @@ -194,6 +194,12 @@ int amdgpu_display_crtc_page_flip_target(struct drm_crtc *crtc,
> goto unreserve;
> }
>
> + r = amdgpu_ttm_alloc_gart(&new_abo->tbo);
> + if (unlikely(r != 0)) {
> + DRM_ERROR("%p bind failed\n", new_abo);
> + goto unpin;
> + }
> +
> r = reservation_object_get_fences_rcu(new_abo->tbo.resv, &work->excl,
> &work->shared_count,
> &work->shared);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> index 462b7a1..cd68a2e 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
> @@ -173,6 +173,14 @@ static int amdgpufb_create_pinned_object(struct amdgpu_fbdev *rfbdev,
> amdgpu_bo_unreserve(abo);
> goto out_unref;
> }
> +
> + ret = amdgpu_ttm_alloc_gart(&abo->tbo);
> + if (ret) {
> + amdgpu_bo_unreserve(abo);
> + dev_err(adev->dev, "%p bind failed\n", abo);
> + goto out_unref;
> + }
> +
> ret = amdgpu_bo_kmap(abo, NULL);
> amdgpu_bo_unreserve(abo);
> if (ret) {
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 79cdbf1..7f7c221 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> @@ -257,6 +257,13 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
> dev_err(adev->dev, "(%d) kernel bo pin failed\n", r);
> goto error_unreserve;
> }
> +
> + r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo);
> + if (r) {
> + dev_err(adev->dev, "%p bind failed\n", *bo_ptr);
> + goto error_unpin;
> + }
> +
> if (gpu_addr)
> *gpu_addr = amdgpu_bo_gpu_offset(*bo_ptr);
>
> @@ -270,6 +277,8 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
>
> return 0;
>
> +error_unpin:
> + amdgpu_bo_unpin(*bo_ptr);
> error_unreserve:
> amdgpu_bo_unreserve(*bo_ptr);
>
> @@ -903,12 +912,6 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
> goto error;
> }
>
> - r = amdgpu_ttm_alloc_gart(&bo->tbo);
> - if (unlikely(r)) {
> - dev_err(adev->dev, "%p bind failed\n", bo);
> - goto error;
> - }
> -
> bo->pin_count = 1;
>
> domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
> index 622affc..d6eeea1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_test.c
> @@ -102,6 +102,11 @@ static void amdgpu_do_test_moves(struct amdgpu_device *adev)
> DRM_ERROR("Failed to pin GTT object %d\n", i);
> goto out_lclean_unres;
> }
> + r = amdgpu_ttm_alloc_gart(>t_obj[i]->tbo);
> + if (r) {
> + DRM_ERROR("%p bind failed\n", gtt_obj[i]);
> + goto out_lclean_unpin;
> + }
> gart_addr = amdgpu_bo_gpu_offset(gtt_obj[i]);
>
> r = amdgpu_bo_kmap(gtt_obj[i], >t_map);
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 31652c1e..d433428 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -3110,13 +3110,22 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
> domain = AMDGPU_GEM_DOMAIN_VRAM;
>
> r = amdgpu_bo_pin(rbo, domain);
> - amdgpu_bo_unreserve(rbo);
> -
> if (unlikely(r != 0)) {
> if (r != -ERESTARTSYS)
> DRM_ERROR("Failed to pin framebuffer with error %d\n", r);
> + amdgpu_bo_unreserve(rbo);
> + return r;
> + }
> +
> + r = amdgpu_ttm_alloc_gart(&rbo->tbo);
> + if (unlikely(r != 0)) {
> + amdgpu_bo_unpin(rbo);
> + amdgpu_bo_unreserve(rbo);
> + DRM_ERROR("%p bind failed\n", rbo);
> return r;
> }
> + amdgpu_bo_unreserve(rbo);
> +
> afb->address = amdgpu_bo_gpu_offset(rbo);
>
> amdgpu_bo_ref(rbo);
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