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Message-ID: <20251121101315.3585-10-pierre-eric.pelloux-prayer@amd.com>
Date: Fri, 21 Nov 2025 11:12:19 +0100
From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>
To: Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>, David Airlie
<airlied@...il.com>, Simona Vetter <simona@...ll.ch>, Felix Kuehling
<Felix.Kuehling@....com>, Sumit Semwal <sumit.semwal@...aro.org>
CC: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>,
<amd-gfx@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
<linux-kernel@...r.kernel.org>, <linux-media@...r.kernel.org>,
<linaro-mm-sig@...ts.linaro.org>
Subject: [PATCH v3 09/28] drm/amdgpu: pass the entity to use to ttm public functions
This way the caller can select the one it wants to use.
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c | 3 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 4 +--
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 34 +++++++++----------
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 16 +++++----
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 3 +-
5 files changed, 32 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
index 3636b757c974..a050167e76a4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_benchmark.c
@@ -37,7 +37,8 @@ static int amdgpu_benchmark_do_move(struct amdgpu_device *adev, unsigned size,
stime = ktime_get();
for (i = 0; i < n; i++) {
- r = amdgpu_copy_buffer(adev, saddr, daddr, size, NULL, &fence,
+ r = amdgpu_copy_buffer(adev, &adev->mman.default_entity,
+ saddr, daddr, size, NULL, &fence,
false, 0);
if (r)
goto exit_do_move;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 926a3f09a776..858eb9fa061b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1322,8 +1322,8 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo)
if (r)
goto out;
- r = amdgpu_fill_buffer(abo, 0, &bo->base._resv, &fence, true,
- AMDGPU_KERNEL_JOB_ID_CLEAR_ON_RELEASE);
+ r = amdgpu_fill_buffer(&adev->mman.clear_entity, abo, 0, &bo->base._resv,
+ &fence, AMDGPU_KERNEL_JOB_ID_CLEAR_ON_RELEASE);
if (WARN_ON(r))
goto out;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 3d850893b97f..1d3afad885da 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -359,7 +359,7 @@ static int amdgpu_ttm_copy_mem_to_mem(struct amdgpu_device *adev,
write_compress_disable));
}
- r = amdgpu_copy_buffer(adev, from, to, cur_size, resv,
+ r = amdgpu_copy_buffer(adev, entity, from, to, cur_size, resv,
&next, true, copy_flags);
if (r)
goto error;
@@ -414,8 +414,9 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE)) {
struct dma_fence *wipe_fence = NULL;
- r = amdgpu_fill_buffer(abo, 0, NULL, &wipe_fence,
- false, AMDGPU_KERNEL_JOB_ID_MOVE_BLIT);
+ r = amdgpu_fill_buffer(&adev->mman.move_entity,
+ abo, 0, NULL, &wipe_fence,
+ AMDGPU_KERNEL_JOB_ID_MOVE_BLIT);
if (r) {
goto error;
} else if (wipe_fence) {
@@ -2258,7 +2259,9 @@ static int amdgpu_ttm_prepare_job(struct amdgpu_device *adev,
DMA_RESV_USAGE_BOOKKEEP);
}
-int amdgpu_copy_buffer(struct amdgpu_device *adev, uint64_t src_offset,
+int amdgpu_copy_buffer(struct amdgpu_device *adev,
+ struct amdgpu_ttm_buffer_entity *entity,
+ uint64_t src_offset,
uint64_t dst_offset, uint32_t byte_count,
struct dma_resv *resv,
struct dma_fence **fence,
@@ -2282,7 +2285,7 @@ int amdgpu_copy_buffer(struct amdgpu_device *adev, uint64_t src_offset,
max_bytes = adev->mman.buffer_funcs->copy_max_bytes;
num_loops = DIV_ROUND_UP(byte_count, max_bytes);
num_dw = ALIGN(num_loops * adev->mman.buffer_funcs->copy_num_dw, 8);
- r = amdgpu_ttm_prepare_job(adev, &adev->mman.move_entity, num_dw,
+ r = amdgpu_ttm_prepare_job(adev, entity, num_dw,
resv, vm_needs_flush, &job,
AMDGPU_KERNEL_JOB_ID_TTM_COPY_BUFFER);
if (r)
@@ -2411,22 +2414,18 @@ int amdgpu_ttm_clear_buffer(struct amdgpu_bo *bo,
return r;
}
-int amdgpu_fill_buffer(struct amdgpu_bo *bo,
- uint32_t src_data,
- struct dma_resv *resv,
- struct dma_fence **f,
- bool delayed,
- u64 k_job_id)
+int amdgpu_fill_buffer(struct amdgpu_ttm_buffer_entity *entity,
+ struct amdgpu_bo *bo,
+ uint32_t src_data,
+ struct dma_resv *resv,
+ struct dma_fence **f,
+ u64 k_job_id)
{
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
- struct amdgpu_ttm_buffer_entity *entity;
struct dma_fence *fence = NULL;
struct amdgpu_res_cursor dst;
int r;
- entity = delayed ? &adev->mman.clear_entity :
- &adev->mman.move_entity;
-
if (!adev->mman.buffer_funcs_enabled) {
dev_err(adev->dev,
"Trying to clear memory with ring turned off.\n");
@@ -2443,13 +2442,14 @@ int amdgpu_fill_buffer(struct amdgpu_bo *bo,
/* Never fill more than 256MiB at once to avoid timeouts */
cur_size = min(dst.size, 256ULL << 20);
- r = amdgpu_ttm_map_buffer(adev, &adev->mman.default_entity,
+ r = amdgpu_ttm_map_buffer(adev, entity,
&bo->tbo, bo->tbo.resource, &dst,
1, false, &cur_size, &to);
if (r)
goto error;
- r = amdgpu_ttm_fill_mem(adev, entity, src_data, to, cur_size, resv,
+ r = amdgpu_ttm_fill_mem(adev, entity,
+ src_data, to, cur_size, resv,
&next, true, k_job_id);
if (r)
goto error;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
index 41bbc25680a2..9288599c9c46 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
@@ -167,7 +167,9 @@ int amdgpu_ttm_init(struct amdgpu_device *adev);
void amdgpu_ttm_fini(struct amdgpu_device *adev);
void amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev,
bool enable);
-int amdgpu_copy_buffer(struct amdgpu_device *adev, uint64_t src_offset,
+int amdgpu_copy_buffer(struct amdgpu_device *adev,
+ struct amdgpu_ttm_buffer_entity *entity,
+ uint64_t src_offset,
uint64_t dst_offset, uint32_t byte_count,
struct dma_resv *resv,
struct dma_fence **fence,
@@ -175,12 +177,12 @@ int amdgpu_copy_buffer(struct amdgpu_device *adev, uint64_t src_offset,
int amdgpu_ttm_clear_buffer(struct amdgpu_bo *bo,
struct dma_resv *resv,
struct dma_fence **fence);
-int amdgpu_fill_buffer(struct amdgpu_bo *bo,
- uint32_t src_data,
- struct dma_resv *resv,
- struct dma_fence **fence,
- bool delayed,
- u64 k_job_id);
+int amdgpu_fill_buffer(struct amdgpu_ttm_buffer_entity *entity,
+ struct amdgpu_bo *bo,
+ uint32_t src_data,
+ struct dma_resv *resv,
+ struct dma_fence **f,
+ u64 k_job_id);
int amdgpu_ttm_alloc_gart(struct ttm_buffer_object *bo);
void amdgpu_ttm_recover_gart(struct ttm_buffer_object *tbo);
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index ade1d4068d29..9c76f1ba0e55 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -157,7 +157,8 @@ svm_migrate_copy_memory_gart(struct amdgpu_device *adev, dma_addr_t *sys,
goto out_unlock;
}
- r = amdgpu_copy_buffer(adev, gart_s, gart_d, size * PAGE_SIZE,
+ r = amdgpu_copy_buffer(adev, entity,
+ gart_s, gart_d, size * PAGE_SIZE,
NULL, &next, true, 0);
if (r) {
dev_err(adev->dev, "fail %d to copy memory\n", r);
--
2.43.0
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