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drm/amdgpu: Restore partition mode after reset

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On a full device reset, PSP FW gets unloaded. Hence restore the
partition mode by placing a new request.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Lijo Lazar
2023-09-08 13:41:24 +05:30
committed by Alex Deucher
parent f4f8a4dac0
commit c45e38f217
4 changed files with 28 additions and 8 deletions
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28
drivers/gpu/drm/amd/amdgpu/amdgpu_xcp.c
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@@ -163,16 +163,11 @@ int amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps, int mode)
return 0;
}
int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode)
static int __amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr,
int mode)
{
int ret, curr_mode, num_xcps = 0;
if (!xcp_mgr || mode == AMDGPU_XCP_MODE_NONE)
return -EINVAL;
if (xcp_mgr->mode == mode)
return 0;
if (!xcp_mgr->funcs || !xcp_mgr->funcs->switch_partition_mode)
return 0;
@@ -201,6 +196,25 @@ out:
return ret;
}
int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode)
{
if (!xcp_mgr || mode == AMDGPU_XCP_MODE_NONE)
return -EINVAL;
if (xcp_mgr->mode == mode)
return 0;
return __amdgpu_xcp_switch_partition_mode(xcp_mgr, mode);
}
int amdgpu_xcp_restore_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr)
{
if (!xcp_mgr || xcp_mgr->mode == AMDGPU_XCP_MODE_NONE)
return 0;
return __amdgpu_xcp_switch_partition_mode(xcp_mgr, xcp_mgr->mode);
}
int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags)
{
int mode;