git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-27 03:49:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: use doorbell mgr for MES kernel doorbells

Browse Source 
This patch:
- Removes the existing doorbell management code, and its variables
  from the doorbell_init function, it will be done in doorbell
  manager now.
- uses the doorbell page created for MES kernel level needs (doorbells
  for MES self tests)
- current MES code was allocating MES doorbells in MES process context,
  but those were getting written using kernel doorbell calls. This patch
  instead allocates a MES kernel doorbell for this (in add_hw_queue).

V2: Create an extra page of doorbells for MES during kernel doorbell
    creation (Alex)
V4: Move MES doorbell size and page offset objects in this patch from
    patch 6.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Christian Koenig <christian.koenig@amd.com>
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Arvind Yadav <arvind.yadav@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shashank Sharma
2023-07-14 16:22:38 +02:00
committed by Alex Deucher
parent 8da0d694a3
commit e3cbb1f404
3 changed files with 47 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c
View File

@@ -145,6 +145,10 @@ int amdgpu_doorbell_create_kernel_doorbells(struct amdgpu_device *adev)
/* Reserve first num_kernel_doorbells (page-aligned) for kernel ops */
size = ALIGN(adev->doorbell.num_kernel_doorbells * sizeof(u32), PAGE_SIZE);
/* Allocate an extra page for MES kernel usages (ring test) */
adev->mes.db_start_dw_offset = size / sizeof(u32);
size += PAGE_SIZE;
r = amdgpu_bo_create_kernel(adev,
size,
PAGE_SIZE,