drm/amdgpu: Add xcp manager num_xcp_per_mem_partition

Used by KFD to check memory limit accounting.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
index 9b960ba..f2981d2 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
@@ -156,6 +156,7 @@ int amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps, int mode)
        xcp_mgr->num_xcps = num_xcps;
        amdgpu_xcp_update_partition_sched_list(adev);
 
+       xcp_mgr->num_xcp_per_mem_partition = num_xcps / xcp_mgr->adev->gmc.num_mem_partitions;
        return 0;
 }
 

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
index 39aca87..68b63b9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.h
@@ -83,6 +83,9 @@ struct amdgpu_xcp_mgr {
        struct amdgpu_xcp xcp[MAX_XCP];
        uint8_t num_xcps;
        int8_t mode;
+
+        /* Used to determine KFD memory size limits per XCP */
+       unsigned int num_xcp_per_mem_partition;
 };
 
 struct amdgpu_xcp_mgr_funcs {