File 0163-drm-amdgpu-return-ENOENT-from-uvd-6.0-earl... of Package drm.7971

Overview Repositories Revisions Requests Users Attributes Meta

File 0163-drm-amdgpu-return-ENOENT-from-uvd-6.0-early-init-for.patch of Package drm.7971

From 09907f0cbe61f65d9dba6ad1a3bbb9f5ca31c2c9 Mon Sep 17 00:00:00 2001
From: Leo Liu <leo.liu@amd.com>
Date: Tue, 31 Oct 2017 21:03:39 -0400
Subject: [PATCH] drm/amdgpu: return -ENOENT from uvd 6.0 early init for
 harvesting

commit cb4b02d7cac56a69d8137d8d843507cca9182aed upstream.

Fixes init failures on polaris cards with harvested UVD.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 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
@@ -89,6 +89,10 @@ 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);

Places

File 0163-drm-amdgpu-return-ENOENT-from-uvd-6.0-early-init-for.patch of Package drm.7971

Places