Commit a7f28103 authored by Kevin Wang's avatar Kevin Wang Committed by Alex Deucher
Browse files

drm/amdgpu: add amdgpu_virt_get_vf_mode helper function 



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: default avatarKevin Wang <kevin1.wang@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 728e7e0c

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

+16 −0
Original line number Diff line number Diff line
@@ -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;

}

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h

+8 −0
Original line number Diff line number Diff line
@@ -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