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From: Rob Clark <robin.clark@oss.qualcomm.com>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
	Alexander Koskovich <akoskovich@pm.me>,
	Jie Zhang <jie.zhang@oss.qualcomm.com>,
	Akhil P Oommen <akhilpo@oss.qualcomm.com>,
	Bhaskar Reddy Valluru <bvalluru@qti.qualcomm.com>,
	Rob Clark <robin.clark@oss.qualcomm.com>,
	Sean Paul <sean@poorly.run>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Dmitry Baryshkov <lumag@kernel.org>,
	Abhinav Kumar <abhinav.kumar@linux.dev>,
	Jessica Zhang <jesszhan0024@gmail.com>,
	Marijn Suijten <marijn.suijten@somainline.org>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 05/12] drm/msm/a8xx: Stop getting GMEM_PROTECT from nonctx list
Date: Tue, 20 Oct 2026 13:46:19 -0700	[thread overview]
Message-ID: <20261020204728.28844-6-robin.clark@oss.qualcomm.com> (raw)
In-Reply-To: <20261020204728.28844-1-robin.clark@oss.qualcomm.com>

We can just simplify things and calculate the value, instead of manually
adding it to the nonctx list.

Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
---
 drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a8xx_gpu.c b/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
index 3e22ef788f2d..6d7982a117f7 100644
--- a/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
@@ -373,7 +373,7 @@ static void a8xx_set_ubwc_config(struct msm_gpu *gpu)
 		  hbb_lo << 1 | ubwc_mode);
 }
 
-static void a8xx_nonctxt_config(struct msm_gpu *gpu, u32 *gmem_protect)
+static void a8xx_nonctxt_config(struct msm_gpu *gpu)
 {
 	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
 	struct a6xx_gmu *gmu = &to_a6xx_gpu(adreno_gpu)->gmu;
@@ -393,9 +393,6 @@ static void a8xx_nonctxt_config(struct msm_gpu *gpu, u32 *gmem_protect)
 			if (!(BIT(pipe_id) & regs[i].pipe))
 				continue;
 
-			if (regs[i].offset == REG_A8XX_RB_GC_GMEM_PROTECT)
-				*gmem_protect = regs[i].value;
-
 			if ((regs[i].offset << 2) >= gmu->mmio_offset) {
 				gmu_write(gmu, regs[i].offset, regs[i].value);
 			} else {
@@ -641,7 +638,6 @@ static int hw_init(struct msm_gpu *gpu)
 	struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
 	struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
 	unsigned int pipe_id, i;
-	u32 gmem_protect = 0;
 	u64 gmem_range_min;
 	int ret;
 
@@ -722,7 +718,7 @@ static int hw_init(struct msm_gpu *gpu)
 
 	gpu_write(gpu, REG_A8XX_UCHE_CLIENT_PF, BIT(7) | 0x1);
 
-	a8xx_nonctxt_config(gpu, &gmem_protect);
+	a8xx_nonctxt_config(gpu);
 
 	/* Enable fault detection */
 	gpu_write(gpu, REG_A8XX_RBBM_INTERFACE_HANG_INT_CNTL, BIT(30) | 0xcfffff);
@@ -841,8 +837,8 @@ static int hw_init(struct msm_gpu *gpu)
 	 * GMEM_PROTECT register should be programmed after GPU is transitioned to
 	 * non-secure mode
 	 */
-	a8xx_write_pipe(gpu, PIPE_BR, REG_A8XX_RB_GC_GMEM_PROTECT, gmem_protect);
-	WARN_ON(!gmem_protect);
+	a8xx_write_pipe(gpu, PIPE_BR, REG_A8XX_RB_GC_GMEM_PROTECT,
+		        (adreno_gpu->info->gmem / SZ_4K) << 16);
 	a8xx_aperture_clear(gpu);
 
 	if (!a6xx_gpu->pwrup_reglist_emitted) {
-- 
2.56.0


  parent reply	other threads:[~2026-10-20 20:47 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-20 20:46 [PATCH 00/12] drm/msm/a8xx: GPU state capture support Rob Clark
2026-10-20 20:46 ` [PATCH 01/12] drm/msm: Import adreno_snapshot.h Rob Clark
2026-10-20 20:46 ` [PATCH 02/12] drm/msm/a8xx: Export aperture helpers Rob Clark
2026-10-20 20:46 ` [PATCH 03/12] drm/msm/a8xx: Add a8xx_aperture_acquire_slice() Rob Clark
2026-10-20 20:46 ` [PATCH 04/12] drm/msm/a8xx: Allow nonctx reglist to include GMU regs Rob Clark
2026-10-20 20:46 ` Rob Clark [this message]
2026-10-20 20:46 ` [PATCH 06/12] drm/msm/adreno: Fix PROTECT span length Rob Clark
2026-10-20 20:46 ` [PATCH 07/12] drm/msm/adreno: add temporary __maybe_unused Rob Clark
2026-10-20 20:46 ` [PATCH 08/12] drm/msm/a8xx: Import generated headers Rob Clark
2026-10-20 20:46 ` [PATCH 09/12] drm/msm/a8xx: devcoredump state capture support Rob Clark
2026-10-20 20:46 ` [PATCH 10/12] drm/msm/a8xx: Switch to generated nonctx regs Rob Clark
2026-10-20 20:46 ` [PATCH 11/12] drm/msm/a8xx: Switch to generated protect regs Rob Clark
2026-10-20 20:46 ` [PATCH 12/12] drm/msm/adreno: Remove temporary __maybe_unused Rob Clark

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