diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vi.c | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index b688e2f77419..a8154d0ac288 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -445,18 +445,21 @@ static bool vi_read_bios_from_rom(struct amdgpu_device *adev, return true; } -static u32 vi_get_virtual_caps(struct amdgpu_device *adev) +static void vi_detect_hw_virtualization(struct amdgpu_device *adev) { - u32 caps = 0; - u32 reg = RREG32(mmBIF_IOV_FUNC_IDENTIFIER); + uint32_t reg = RREG32(mmBIF_IOV_FUNC_IDENTIFIER); + /* bit0: 0 means pf and 1 means vf */ + /* bit31: 0 means disable IOV and 1 means enable */ + if (reg & 1) + adev->virtualization.virtual_caps |= AMDGPU_SRIOV_CAPS_IS_VF; - if (REG_GET_FIELD(reg, BIF_IOV_FUNC_IDENTIFIER, IOV_ENABLE)) - caps |= AMDGPU_VIRT_CAPS_SRIOV_EN; + if (reg & 0x80000000) + adev->virtualization.virtual_caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV; - if (REG_GET_FIELD(reg, BIF_IOV_FUNC_IDENTIFIER, FUNC_IDENTIFIER)) - caps |= AMDGPU_VIRT_CAPS_IS_VF; - - return caps; + if (reg == 0) { + if (is_virtual_machine()) /* passthrough mode exclus sr-iov mode */ + adev->virtualization.virtual_caps |= AMDGPU_PASSTHROUGH_MODE; + } } static const struct amdgpu_allowed_register_entry tonga_allowed_read_registers[] = { @@ -1521,13 +1524,13 @@ static const struct amdgpu_asic_funcs vi_asic_funcs = { .read_disabled_bios = &vi_read_disabled_bios, .read_bios_from_rom = &vi_read_bios_from_rom, + .detect_hw_virtualization = vi_detect_hw_virtualization, .read_register = &vi_read_register, .reset = &vi_asic_reset, .set_vga_state = &vi_vga_set_state, .get_xclk = &vi_get_xclk, .set_uvd_clocks = &vi_set_uvd_clocks, .set_vce_clocks = &vi_set_vce_clocks, - .get_virtual_caps = &vi_get_virtual_caps, }; static int vi_common_early_init(void *handle) @@ -1657,6 +1660,10 @@ static int vi_common_early_init(void *handle) return -EINVAL; } + /* in early init stage, vbios code won't work */ + if (adev->asic_funcs->detect_hw_virtualization) + amdgpu_asic_detect_hw_virtualization(adev); + if (amdgpu_smc_load_fw && smc_enabled) adev->firmware.smu_load = true; |