This is a note to let you know that I've just added the patch titled
drm/amdgpu: Assign correct bits for SDMA HDP flush
to the 6.6-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-assign-correct-bits-for-sdma-hdp-flush.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From aebd3eb9d3ae017e6260043f6bcace2f5ef60694 Mon Sep 17 00:00:00 2001
From: Lijo Lazar <lijo.lazar@xxxxxxx>
Date: Wed, 10 Apr 2024 19:30:46 +0530
Subject: drm/amdgpu: Assign correct bits for SDMA HDP flush
From: Lijo Lazar <lijo.lazar@xxxxxxx>
commit aebd3eb9d3ae017e6260043f6bcace2f5ef60694 upstream.
HDP Flush request bit can be kept unique per AID, and doesn't need to be
unique SOC-wide. Assign only bits 10-13 for SDMA v4.4.2.
Signed-off-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Acked-by: Alex Deucher <alexander.deucher@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/sdma_v4_4_2.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
@@ -365,7 +365,8 @@ static void sdma_v4_4_2_ring_emit_hdp_fl
u32 ref_and_mask = 0;
const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
- ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
+ ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0
+ << (ring->me % adev->sdma.num_inst_per_aid);
sdma_v4_4_2_wait_reg_mem(ring, 0, 1,
adev->nbio.funcs->get_hdp_flush_done_offset(adev),
Patches currently in stable-queue which might be from lijo.lazar@xxxxxxx are
queue-6.6/drm-amdgpu-assign-correct-bits-for-sdma-hdp-flush.patch
