| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20251121101315.3585-22-pierre-eric.pelloux-prayer@amd.com>
Date: Fri, 21 Nov 2025 11:12:31 +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>
CC: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>, "Felix
Kuehling" <felix.kuehling@....com>, <amd-gfx@...ts.freedesktop.org>,
<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 21/28] drm/amdgpu: allocate multiple move entities
No functional change for now, as we always use entity 0.
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@....com>
Acked-by: Felix Kuehling <felix.kuehling@....com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 45 +++++++++++++++---------
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 3 +-
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2 +-
3 files changed, 31 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index d7f041e43eca..438e8a3b7a06 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -439,7 +439,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
dst.offset = 0;
r = amdgpu_ttm_copy_mem_to_mem(adev,
- &adev->mman.move_entity,
+ &adev->mman.move_entities[0],
&src, &dst,
new_mem->size,
amdgpu_bo_encrypted(abo),
@@ -452,7 +452,7 @@ 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(adev, &adev->mman.move_entity,
+ r = amdgpu_fill_buffer(adev, &adev->mman.move_entities[0],
abo, 0, NULL, &wipe_fence,
AMDGPU_KERNEL_JOB_ID_MOVE_BLIT);
if (r) {
@@ -2224,12 +2224,13 @@ u32 amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
{
struct ttm_resource_manager *man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
u32 used_windows, reserved_windows;
- u32 num_clear_entities;
+ u32 num_clear_entities, num_move_entities;
uint64_t size;
int r, i, j;
num_clear_entities = adev->sdma.num_instances;
- reserved_windows = 2 + num_clear_entities;
+ num_move_entities = MIN(adev->sdma.num_instances, TTM_NUM_MOVE_FENCES);
+ reserved_windows = 2 * num_move_entities + num_clear_entities;
if (!adev->mman.initialized || amdgpu_in_reset(adev) ||
adev->mman.buffer_funcs_enabled == enable || adev->gmc.is_app_apu)
@@ -2251,20 +2252,25 @@ u32 amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
DRM_SCHED_PRIORITY_KERNEL, &sched,
1, NULL);
if (r) {
- dev_err(adev->dev,
- "Failed setting up TTM BO eviction entity (%d)\n",
+ dev_err(adev->dev, "Failed setting up entity (%d)\n",
r);
return 0;
}
- r = drm_sched_entity_init(&adev->mman.move_entity.base,
- DRM_SCHED_PRIORITY_NORMAL, &sched,
- 1, NULL);
- if (r) {
- dev_err(adev->dev,
- "Failed setting up TTM BO move entity (%d)\n",
- r);
- goto error_free_entity;
+ adev->mman.num_move_entities = num_move_entities;
+ for (i = 0; i < num_move_entities; i++) {
+ r = drm_sched_entity_init(&adev->mman.move_entities[i].base,
+ DRM_SCHED_PRIORITY_NORMAL, &sched,
+ 1, NULL);
+ if (r) {
+ dev_err(adev->dev,
+ "Failed setting up TTM BO move entities (%d)\n",
+ r);
+ for (j = 0; j < i; j++)
+ drm_sched_entity_destroy(
+ &adev->mman.move_entities[j].base);
+ goto error_free_entity;
+ }
}
adev->mman.num_clear_entities = num_clear_entities;
@@ -2279,6 +2285,9 @@ u32 amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
DRM_SCHED_PRIORITY_NORMAL, &sched,
1, NULL);
if (r) {
+ for (j = 0; j < num_move_entities; j++)
+ drm_sched_entity_destroy(
+ &adev->mman.move_entities[j].base);
for (j = 0; j < i; j++)
drm_sched_entity_destroy(
&adev->mman.clear_entities[j].base);
@@ -2290,15 +2299,17 @@ u32 amdgpu_ttm_set_buffer_funcs_status(struct amdgpu_device *adev, bool enable)
/* Statically assign GART windows to each entity. */
used_windows = amdgpu_ttm_buffer_entity_init(&adev->mman.default_entity,
0, false, false);
- used_windows = amdgpu_ttm_buffer_entity_init(&adev->mman.move_entity,
- used_windows, true, true);
+ for (i = 0; i < num_move_entities; i++)
+ used_windows = amdgpu_ttm_buffer_entity_init(&adev->mman.move_entities[i],
+ used_windows, true, true);
for (i = 0; i < num_clear_entities; i++)
used_windows = amdgpu_ttm_buffer_entity_init(&adev->mman.clear_entities[i],
used_windows, false, true);
WARN_ON(used_windows != reserved_windows);
} else {
drm_sched_entity_destroy(&adev->mman.default_entity.base);
- drm_sched_entity_destroy(&adev->mman.move_entity.base);
+ for (i = 0; i < num_move_entities; i++)
+ drm_sched_entity_destroy(&adev->mman.move_entities[i].base);
for (i = 0; i < num_clear_entities; i++)
drm_sched_entity_destroy(&adev->mman.clear_entities[i].base);
/* Drop all the old fences since re-creating the scheduler entities
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
index 250ef54a5550..eabc5a1549e9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
@@ -72,9 +72,10 @@ struct amdgpu_mman {
struct mutex gtt_window_lock;
struct amdgpu_ttm_buffer_entity default_entity; /* has no gart windows */
- struct amdgpu_ttm_buffer_entity move_entity;
struct amdgpu_ttm_buffer_entity *clear_entities;
u32 num_clear_entities;
+ struct amdgpu_ttm_buffer_entity move_entities[TTM_NUM_MOVE_FENCES];
+ u32 num_move_entities;
struct amdgpu_vram_mgr vram_mgr;
struct amdgpu_gtt_mgr gtt_mgr;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 0cc1d2b35026..5dd65f05a1e0 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -135,7 +135,7 @@ svm_migrate_copy_memory_gart(struct amdgpu_device *adev, dma_addr_t *sys,
u64 size;
int r;
- entity = &adev->mman.move_entity;
+ entity = &adev->mman.move_entities[0];
mutex_lock(&entity->lock);
--
2.43.0
Powered by blists - more mailing lists