diff mbox series

drm/msm/a5xx: Eliminate condition on setup of SMMU CP_PROTECT

Message ID 20211022113128.102304-1-vladimir.lypak@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series drm/msm/a5xx: Eliminate condition on setup of SMMU CP_PROTECT | expand

Commit Message

Vladimir Lypak Oct. 22, 2021, 11:31 a.m. UTC 
Only GPU that has larger SMMU region size (0x8000 dwords) is A530.
All other GPUs have 0x4000 SMMU region. However those GPUs work
correctly with larger range protected because there is no known
registers after SMMU region.
This patch needs to be backported to stable releases because A540 GPU
was forgotten to get its branch (that would set up protected region of
0x4000 dwords).

Fixes: b5f103ab98c7 ("drm/msm: gpu: Add A5XX target support")
Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com>
---
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 5e2750eb3810..ecf6318a247f 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -851,11 +851,8 @@  static int a5xx_hw_init(struct msm_gpu *gpu)
 	/* UCHE */
 	gpu_write(gpu, REG_A5XX_CP_PROTECT(16), ADRENO_PROTECT_RW(0xE80, 16));
 
-	if (adreno_is_a508(adreno_gpu) || adreno_is_a509(adreno_gpu) ||
-	    adreno_is_a510(adreno_gpu) || adreno_is_a512(adreno_gpu) ||
-	    adreno_is_a530(adreno_gpu))
-		gpu_write(gpu, REG_A5XX_CP_PROTECT(17),
-			ADRENO_PROTECT_RW(0x10000, 0x8000));
+	/* SMMU */
+	gpu_write(gpu, REG_A5XX_CP_PROTECT(17), ADRENO_PROTECT_RW(0x10000, 0x8000));
 
 	gpu_write(gpu, REG_A5XX_RBBM_SECVID_TSB_CNTL, 0);
 	/*