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FAILED: patch "[PATCH] drm/amdgpu: disable MCBP by default" failed to apply to 6.6-stable tree

PATCH [email protected] 1 participant 1 message Dec 9, 2023

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The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x d6a57588666301acd9d42d3b00d74240964f07f6
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2023120953-unaligned-chowtime-dd0c@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

d6a575886663 ("drm/amdgpu: disable MCBP by default") 4e8303cf2c4d ("drm/amdgpu: Use function for IP version check") 6b7d211740da ("drm/amdgpu: Fix refclk reporting for SMU v13.0.6") 1b8e56b99459 ("drm/amdgpu: Restrict bootloader wait to SMUv13.0.6") 983ac45a06ae ("drm/amdgpu: update SET_HW_RESOURCES definition for UMSCH") 822f7808291f ("drm/amdgpu/discovery: enable UMSCH 4.0 in IP discovery") 3488c79beafa ("drm/amdgpu: add initial support for UMSCH") 2da1b04a2096 ("drm/amdgpu: add UMSCH 4.0 api definition") 3ee8fb7005ef ("drm/amdgpu: enable VPE for VPE 6.1.0") 9d4346bdbc64 ("drm/amdgpu: add VPE 6.1.0 support")
e370f8f38976 ("drm/amdgpu: Add bootloader wait for PSP v13") aba2be41470a ("drm/amdgpu: add mmhub 3.3.0 support") 15e7cbd91de6 ("drm/amdgpu/gfx11: initialize gfx11.5.0") f56c1941ebb7 ("drm/amdgpu: use 6.1.0 register offset for HDP CLK_CNTL") 15c5c5f57514 ("drm/amdgpu: Add bootloader status check") 3cce0bfcd0f9 ("drm/amd/display: Enable Replay for static screen use cases")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From d6a57588666301acd9d42d3b00d74240964f07f6 Mon Sep 17 00:00:00 2001
From: Jiadong Zhu <[email protected]>
Date: Fri, 1 Dec 2023 08:38:15 +0800
Subject: [PATCH] drm/amdgpu: disable MCBP by default

Disable MCBP(mid command buffer preemption) by default as old Mesa hangs with it. We shall not enable the feature that breaks old usermode driver.

Fixes 50a7c8765ca6 ("drm/amdgpu: enable mcbp by default on gfx9")
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +0 -4
index 5c0817cbc7c2..1cc1ae2743c1 100644
@@ -3791,10 +3791,6 @@ static void amdgpu_device_set_mcbp(struct amdgpu_device *adev)
 		adev->gfx.mcbp = true;
 	else if (amdgpu_mcbp == 0)
 		adev->gfx.mcbp = false;
-	else if ((amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(9, 0, 0)) &&
-		 (amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(10, 0, 0)) &&
-		 adev->gfx.num_gfx_rings)
-		adev->gfx.mcbp = true;
 
 	if (amdgpu_sriov_vf(adev))
 		adev->gfx.mcbp = true;