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drm/amdgpu: add amdgpu_virt_get_vf_mode helper function

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the swsmu or powerplay(hwmgr) need to handle task according to different VF mode,
this function to help query vf mode.

vf mode:
1. SRIOV_VF_MODE_BARE_METAL: the driver work on host  OS (PF)
2. SRIOV_VF_MODE_ONE_VF    : the driver work on guest OS with one VF
3. SRIOV_VF_MODE_MULTI_VF  : the driver work on guest OS with multi VF

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kevin Wang 2020-04-29 18:49:23 +08:00 committed by Alex Deucher
parent 728e7e0cd6
commit a7f2810337
2 changed files with 24 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
View File

@ -370,3 +370,19 @@ void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev)
if (amdgpu_sriov_vf(adev))
adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME;
}
enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev)
{
enum amdgpu_sriov_vf_mode mode;
if (amdgpu_sriov_vf(adev)) {
if (amdgpu_sriov_is_pp_one_vf(adev))
mode = SRIOV_VF_MODE_ONE_VF;
else
mode = SRIOV_VF_MODE_MULTI_VF;
} else {
mode = SRIOV_VF_MODE_BARE_METAL;
}
return mode;
}

8
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
View File

@ -35,6 +35,12 @@
/* tonga/fiji use this offset */
#define mmBIF_IOV_FUNC_IDENTIFIER 0x1503
enum amdgpu_sriov_vf_mode {
SRIOV_VF_MODE_BARE_METAL = 0,
SRIOV_VF_MODE_ONE_VF,
SRIOV_VF_MODE_MULTI_VF,
};
struct amdgpu_mm_table {
struct amdgpu_bo *bo;
uint32_t *cpu_addr;
@ -323,4 +329,6 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev);
bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev);
int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev);
void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev);
enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev);
#endif