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Code Issues Releases Wiki Activity

drm/amdgpu: invoke req full access early enough

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From SIENNA_CICHLID, HW introduce a new protection
feature which can control the FB, doorbell and MMIO
write access for VF, so guest driver should request
full access before ip discovery, or we couldn't access
ip discovery data in FB.

Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenhui Sheng 2020-06-23 13:43:49 +08:00 committed by Alex Deucher
parent d95f09acad
commit 00a979f3d6
1 changed files with 23 additions and 31 deletions
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54
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View file

@ -1722,6 +1722,29 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
amdgpu_device_enable_virtual_display(adev);
if (amdgpu_sriov_vf(adev)) {
/* handle vbios stuff prior full access mode for new handshake */
if (adev->virt.req_init_data_ver == 1) {
if (!amdgpu_get_bios(adev)) {
DRM_ERROR("failed to get vbios\n");
return -EINVAL;
}
r = amdgpu_atombios_init(adev);
if (r) {
dev_err(adev->dev, "amdgpu_atombios_init failed\n");
amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
return r;
}
}
r = amdgpu_virt_request_full_gpu(adev, true);
if (r) {
amdgpu_atombios_fini(adev);
return r;
}
}
switch (adev->asic_type) {
#ifdef CONFIG_DRM_AMDGPU_SI
case CHIP_VERDE:
@ -1801,31 +1824,6 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
amdgpu_amdkfd_device_probe(adev);
if (amdgpu_sriov_vf(adev)) {
/* handle vbios stuff prior full access mode for new handshake */
if (adev->virt.req_init_data_ver == 1) {
if (!amdgpu_get_bios(adev)) {
DRM_ERROR("failed to get vbios\n");
return -EINVAL;
}
r = amdgpu_atombios_init(adev);
if (r) {
dev_err(adev->dev, "amdgpu_atombios_init failed\n");
amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
return r;
}
}
}
/* we need to send REQ_GPU here for legacy handshaker otherwise the vbios
* will not be prepared by host for this VF */
if (amdgpu_sriov_vf(adev) && adev->virt.req_init_data_ver < 1) {
r = amdgpu_virt_request_full_gpu(adev, true);
if (r)
return r;
}
adev->pm.pp_feature = amdgpu_pp_feature_mask;
if (amdgpu_sriov_vf(adev) || sched_policy == KFD_SCHED_POLICY_NO_HWS)
adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
@ -1987,12 +1985,6 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
if (r)
return r;
if (amdgpu_sriov_vf(adev) && adev->virt.req_init_data_ver > 0) {
r = amdgpu_virt_request_full_gpu(adev, true);
if (r)
return -EAGAIN;
}
for (i = 0; i < adev->num_ip_blocks; i++) {
if (!adev->ip_blocks[i].status.valid)
continue;