This is a note to let you know that I've just added the patch titled
drm/amdgpu: indirect register access for nv12 sriov
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-indirect-register-access-for-nv12-sriov.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0d2397bd629a7d3b91f60c176216e64970a30921
Author: Peng Ju Zhou <PengJu.Zhou@xxxxxxx>
Date: Mon Mar 29 15:47:20 2021 +0800
drm/amdgpu: indirect register access for nv12 sriov
[ Upstream commit 8b8a162da820d48bb94261ae4684f2c839ce148c ]
unify host driver and guest driver indirect access
control bits names
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@xxxxxxx>
Reviewed-by: Emily.Deng <Emily.Deng@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f262c4e7a48a..a5f9f51cf583 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2047,6 +2047,11 @@ static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
return r;
}
+
+ /*get pf2vf msg info at it's earliest time*/
+ if (amdgpu_sriov_vf(adev))
+ amdgpu_virt_init_data_exchange(adev);
+
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index e7678ba8fdcf..d17bd0140bf6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -615,6 +615,14 @@ void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
if (adev->virt.ras_init_done)
amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size);
}
+ } else if (adev->bios != NULL) {
+ adev->virt.fw_reserve.p_pf2vf =
+ (struct amd_sriov_msg_pf2vf_info_header *)
+ (adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
+
+ amdgpu_virt_read_pf2vf_data(adev);
+
+ return;
}
if (adev->virt.vf2pf_update_interval_ms != 0) {
