This is a note to let you know that I've just added the patch titled
drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting
to the 4.4-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-return-enoent-from-uvd-6.0-early-init-for-harvesting.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From cb4b02d7cac56a69d8137d8d843507cca9182aed Mon Sep 17 00:00:00 2001
From: Leo Liu <leo.liu@xxxxxxx>
Date: Tue, 31 Oct 2017 21:03:39 -0400
Subject: drm/amdgpu: return -ENOENT from uvd 6.0 early init for harvesting
From: Leo Liu <leo.liu@xxxxxxx>
commit cb4b02d7cac56a69d8137d8d843507cca9182aed upstream.
Fixes init failures on polaris cards with harvested UVD.
Signed-off-by: Leo Liu <leo.liu@xxxxxxx>
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -83,6 +83,10 @@ static int uvd_v6_0_early_init(void *han
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ if (!(adev->flags & AMD_IS_APU) &&
+ (RREG32_SMC(ixCC_HARVEST_FUSES) & CC_HARVEST_FUSES__UVD_DISABLE_MASK))
+ return -ENOENT;
+
uvd_v6_0_set_ring_funcs(adev);
uvd_v6_0_set_irq_funcs(adev);
Patches currently in stable-queue which might be from leo.liu@xxxxxxx are
queue-4.4/drm-amdgpu-return-enoent-from-uvd-6.0-early-init-for-harvesting.patch