This is a note to let you know that I've just added the patch titled
drm/amd/display: setup system context for APUs
to the 5.14-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-amd-display-setup-system-context-for-apus.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 3ca001aff0878546494d7f403334c8d987924977 Mon Sep 17 00:00:00 2001
From: Aaron Liu <aaron.liu@xxxxxxx>
Date: Mon, 23 Aug 2021 12:26:50 +0800
Subject: drm/amd/display: setup system context for APUs
From: Aaron Liu <aaron.liu@xxxxxxx>
commit 3ca001aff0878546494d7f403334c8d987924977 upstream.
Scatter/gather is APU feature starting from carrizo.
adev->apu_flags is not used for all APUs.
adev->flags & AMD_IS_APU can be used for all APUs.
Signed-off-by: Aaron Liu <aaron.liu@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -1202,7 +1202,7 @@ static int amdgpu_dm_init(struct amdgpu_
dc_hardware_init(adev->dm.dc);
#if defined(CONFIG_DRM_AMD_DC_DCN)
- if (adev->apu_flags) {
+ if ((adev->flags & AMD_IS_APU) && (adev->asic_type >= CHIP_CARRIZO)) {
struct dc_phy_addr_space_config pa_config;
mmhub_read_system_context(adev, &pa_config);
Patches currently in stable-queue which might be from aaron.liu@xxxxxxx are
queue-5.14/drm-amd-display-setup-system-context-for-apus.patch
queue-5.14/drm-amdgpu-enable-s-g-for-yellow-carp.patch
