diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2023-01-16 08:25:38 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 16:55:29 +0300 |
| commit | ded7d99eb5b78931cec30dd49cd4097d0ac770e1 (patch) | |
| tree | 5c69496ae071595803e3d5ab783069ddd7b8418a /drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | |
| parent | 463e953ea2eda25fbde70e0e72900f5bafeff93c (diff) | |
| download | linux-ded7d99eb5b78931cec30dd49cd4097d0ac770e1.tar.xz | |
drm/amdgpu: Add flags for partition mode query
It's not required to take lock on all cases while querying partition
mode. Querying partition mode during KFD init process doesn't need to
take a lock. Init process after a switch will already be happening under
lock. Control the behaviour by adding flags to xcp_query_partition_mode.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c index f59bc450cabe..5b999e5334bb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c @@ -170,7 +170,7 @@ out: return ret; } -int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr) +int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags) { int mode; @@ -180,7 +180,8 @@ int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr) if (!xcp_mgr->funcs || !xcp_mgr->funcs->query_partition_mode) return xcp_mgr->mode; - mutex_lock(&xcp_mgr->xcp_lock); + if (!(flags & AMDGPU_XCP_FL_LOCKED)) + mutex_lock(&xcp_mgr->xcp_lock); mode = xcp_mgr->funcs->query_partition_mode(xcp_mgr); if (mode != xcp_mgr->mode) dev_WARN( @@ -188,7 +189,8 @@ int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr) "Cached partition mode %d not matching with device mode %d", xcp_mgr->mode, mode); - mutex_unlock(&xcp_mgr->xcp_lock); + if (!(flags & AMDGPU_XCP_FL_LOCKED)) + mutex_unlock(&xcp_mgr->xcp_lock); return mode; } |