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drm/amdgpu:changes of virtualization cases probe (v3)

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1,Changes on virtualization detections
2,Don't load smu & mc firmware if using sr-iov bios
3,skip vPost for sriov & force vPost if dev pass-through

v2: agd: squash in Rays's fix for the missed SI case
v3: agd: squash in additional fixes for CIK, SI, cleanup

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu
2016-03-31 13:26:59 +08:00
committed by Alex Deucher
parent ecab76688a
commit 4e99a44e37
10 changed files with 81 additions and 55 deletions
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27
drivers/gpu/drm/amd/amdgpu/vi.c
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@@ -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;