This is a note to let you know that I've just added the patch titled
drm/amdgpu: make sure to init common IP before gmc
to the 5.19-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-make-sure-to-init-common-ip-before-gmc.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From a8671493d2074950553da3cf07d1be43185ef6c6 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Tue, 30 Aug 2022 10:59:49 -0400
Subject: drm/amdgpu: make sure to init common IP before gmc
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From: Alex Deucher <alexander.deucher@xxxxxxx>
commit a8671493d2074950553da3cf07d1be43185ef6c6 upstream.
Move common IP init before GMC init so that HDP gets
remapped before GMC init which uses it.
This fixes the Unsupported Request error reported through
AER during driver load. The error happens as a write happens
to the remap offset before real remapping is done.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
The error was unnoticed before and got visible because of the commit
referenced below. This doesn't fix anything in the commit below, rather
fixes the issue in amdgpu exposed by the commit. The reference is only
to associate this commit with below one so that both go together.
Fixes: 8795e182b02d ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Acked-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2391,8 +2391,16 @@ static int amdgpu_device_ip_init(struct
}
adev->ip_blocks[i].status.sw = true;
- /* need to do gmc hw init early so we can allocate gpu mem */
- if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
+ if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
+ /* need to do common hw init early so everything is set up for gmc */
+ r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
+ if (r) {
+ DRM_ERROR("hw_init %d failed %d\n", i, r);
+ goto init_failed;
+ }
+ adev->ip_blocks[i].status.hw = true;
+ } else if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
+ /* need to do gmc hw init early so we can allocate gpu mem */
/* Try to reserve bad pages early */
if (amdgpu_sriov_vf(adev))
amdgpu_virt_exchange_data(adev);
@@ -3078,8 +3086,8 @@ static int amdgpu_device_ip_reinit_early
int i, r;
static enum amd_ip_block_type ip_order[] = {
- AMD_IP_BLOCK_TYPE_GMC,
AMD_IP_BLOCK_TYPE_COMMON,
+ AMD_IP_BLOCK_TYPE_GMC,
AMD_IP_BLOCK_TYPE_PSP,
AMD_IP_BLOCK_TYPE_IH,
};
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-5.19/drm-amdgpu-move-nbio-ih_doorbell_range-into-ih-code-for-vega.patch
queue-5.19/drm-amdgpu-move-nbio-sdma_doorbell_range-into-sdma-code-for-vega.patch
queue-5.19/drm-amdgpu-don-t-enable-ltr-if-not-supported.patch
queue-5.19/drm-amdgpu-make-sure-to-init-common-ip-before-gmc.patch
