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drm/amdgpu: impl sriov detection for vega10

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Read vega10 hw register to detect if sriov is enabled, and call
it before IP blocks setting.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Xiangliang Yu 2017-03-08 15:00:48 +08:00 committed by Alex Deucher
parent 3fc08b61df
commit 1b922423ce
3 changed files with 21 additions and 0 deletions
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18
drivers/gpu/drm/amd/amdgpu/nbio_v6_1.c
View File

@ -231,3 +231,21 @@ int nbio_v6_1_init(struct amdgpu_device *adev)
return 0;
}
void nbio_v6_1_detect_hw_virt(struct amdgpu_device *adev)
{
uint32_t reg;
reg = RREG32(SOC15_REG_OFFSET(NBIO, 0,
mmRCC_PF_0_0_RCC_IOV_FUNC_IDENTIFIER));
if (reg & 1)
adev->virt.caps |= AMDGPU_SRIOV_CAPS_IS_VF;
if (reg & 0x80000000)
adev->virt.caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV;
if (!reg) {
if (is_virtual_machine()) /* passthrough mode exclus sriov mod */
adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
}
}

1
drivers/gpu/drm/amd/amdgpu/nbio_v6_1.h
View File

@ -48,5 +48,6 @@ void nbio_v6_1_ih_control(struct amdgpu_device *adev);
u32 nbio_v6_1_get_rev_id(struct amdgpu_device *adev);
void nbio_v6_1_update_medium_grain_clock_gating(struct amdgpu_device *adev, bool enable);
void nbio_v6_1_update_medium_grain_light_sleep(struct amdgpu_device *adev, bool enable);
void nbio_v6_1_detect_hw_virt(struct amdgpu_device *adev);
#endif

2
drivers/gpu/drm/amd/amdgpu/soc15.c
View File

@ -469,6 +469,8 @@ static const struct amdgpu_ip_block_version vega10_common_ip_block =
int soc15_set_ip_blocks(struct amdgpu_device *adev)
{
nbio_v6_1_detect_hw_virt(adev);
switch (adev->asic_type) {
case CHIP_VEGA10:
amdgpu_ip_block_add(adev, &vega10_common_ip_block);