linux-kernel - [PATCH AUTOSEL 6.11 223/244] drm/amdgpu/gfx12: use rlc safe mode for soft recovery

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Message-ID: <20240925113641.1297102-223-sashal@kernel.org>
Date: Wed, 25 Sep 2024 07:27:24 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Alex Deucher <alexander.deucher@....com>,
	Vitaly Prosyak <vitaly.prosyak@....com>,
	Sasha Levin <sashal@...nel.org>,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	Likun.Gao@....com,
	Hawking.Zhang@....com,
	kenneth.feng@....com,
	sunil.khatri@....com,
	Jack.Xiao@....com,
	marek.olsak@....com,
	Frank.Min@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.11 223/244] drm/amdgpu/gfx12: use rlc safe mode for soft recovery

From: Alex Deucher <alexander.deucher@....com>

[ Upstream commit 21818f39beda2e843199e5d8d9e3f9e43c8080a3 ]

Protect the MMIO access with safe mode.

Acked-by: Vitaly Prosyak <vitaly.prosyak@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
index 1a84163182689..f0f30cfcf0d76 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
@@ -4605,7 +4605,9 @@ static void gfx_v12_0_ring_soft_recovery(struct amdgpu_ring *ring,
 	value = REG_SET_FIELD(value, SQ_CMD, MODE, 0x01);
 	value = REG_SET_FIELD(value, SQ_CMD, CHECK_VMID, 1);
 	value = REG_SET_FIELD(value, SQ_CMD, VM_ID, vmid);
+	amdgpu_gfx_rlc_enter_safe_mode(adev, 0);
 	WREG32_SOC15(GC, 0, regSQ_CMD, value);
+	amdgpu_gfx_rlc_exit_safe_mode(adev, 0);
 }
 
 static void
-- 
2.43.0