diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2023-01-20 15:53:47 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:55:31 -0400 |
| commit | 46d79cbf9ac64a5e63f0c85f256ba6400a1f2024 (patch) | |
| tree | 7e87c84f3c975d2b98c7f9671c700d94cadc5a7b /drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c | |
| parent | ded7d99eb5b78931cec30dd49cd4097d0ac770e1 (diff) | |
drm/amdgpu: Use transient mode during xcp switch
During partition switch, keep the state as transient mode. Fetch the
latest state if switch fails.
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 | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c index 5b999e5334bb..e8aa4d6c6b62 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c @@ -139,7 +139,7 @@ static int __amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps) int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode) { - int ret, num_xcps = 0; + int ret, curr_mode, num_xcps = 0; if (!xcp_mgr || mode == AMDGPU_XCP_MODE_NONE) return -EINVAL; @@ -152,10 +152,22 @@ int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode) mutex_lock(&xcp_mgr->xcp_lock); + curr_mode = xcp_mgr->mode; + /* State set to transient mode */ + xcp_mgr->mode = AMDGPU_XCP_MODE_TRANS; + ret = xcp_mgr->funcs->switch_partition_mode(xcp_mgr, mode, &num_xcps); - if (ret) + if (ret) { + /* Failed, get whatever mode it's at now */ + if (xcp_mgr->funcs->query_partition_mode) + xcp_mgr->mode = amdgpu_xcp_query_partition_mode( + xcp_mgr, AMDGPU_XCP_FL_LOCKED); + else + xcp_mgr->mode = curr_mode; + goto out; + } if (!num_xcps || num_xcps > MAX_XCP) { ret = -EINVAL; @@ -183,7 +195,7 @@ int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags) 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) + if (xcp_mgr->mode != AMDGPU_XCP_MODE_TRANS && mode != xcp_mgr->mode) dev_WARN( xcp_mgr->adev->dev, "Cached partition mode %d not matching with device mode %d", |