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drm/amdgpu: re-work VM syncing

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Rework how VM operations synchronize to submissions. Provide an
amdgpu_sync container to the backends instead of an reservation
object and fill in the amdgpu_sync object in the higher layers
of the code.

No intended functional change, just prepares for upcomming changes.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Friedrich Vock <friedrich.vock@gmx.de>
Acked-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2024-08-20 12:01:22 +02:00
committed by Alex Deucher
parent 7a19955764
commit 4da5a95bf1
5 changed files with 65 additions and 55 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_vm_sdma.c
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@@ -77,32 +77,24 @@ static int amdgpu_vm_sdma_alloc_job(struct amdgpu_vm_update_params *p,
* amdgpu_vm_sdma_prepare - prepare SDMA command submission
*
* @p: see amdgpu_vm_update_params definition
* @resv: reservation object with embedded fence
* @sync_mode: synchronization mode
* @sync: amdgpu_sync object with fences to wait for
*
* Returns:
* Negativ errno, 0 for success.
*/
static int amdgpu_vm_sdma_prepare(struct amdgpu_vm_update_params *p,
struct dma_resv *resv,
enum amdgpu_sync_mode sync_mode)
struct amdgpu_sync *sync)
{
struct amdgpu_sync sync;
int r;
r = amdgpu_vm_sdma_alloc_job(p, 0);
if (r)
return r;
if (!resv)
if (!sync)
return 0;
amdgpu_sync_create(&sync);
r = amdgpu_sync_resv(p->adev, &sync, resv, sync_mode, p->vm);
if (!r)
r = amdgpu_sync_push_to_job(&sync, p->job);
amdgpu_sync_free(&sync);
r = amdgpu_sync_push_to_job(sync, p->job);
if (r) {
p->num_dw_left = 0;
amdgpu_job_free(p->job);