linux-kernel - [PATCH 6/6] drm/msm/a6xx: Fix up GMU region reservations

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Message-Id: <20230517-topic-a7xx_prep-v1-6-7a964f2e99c2@linaro.org>
Date:   Wed, 17 May 2023 18:50:13 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 6/6] drm/msm/a6xx: Fix up GMU region reservations

Change the order of region allocations to make the addresses match
downstream. This shouldn't matter very much, but helps eliminate one
more difference when comparing register accesses.

Also, make the log region 16K long. That's what it is, unconditionally
on A6xx and A7xx.

Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 8004b582e45f..386c81e1a2f3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -1614,13 +1614,13 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
 			goto err_memory;
 	}
 
-	/* Allocate memory for for the HFI queues */
-	ret = a6xx_gmu_memory_alloc(gmu, &gmu->hfi, SZ_16K, 0, "hfi");
+	/* Allocate memory for the GMU log region */
+	ret = a6xx_gmu_memory_alloc(gmu, &gmu->log, SZ_16K, 0, "log");
 	if (ret)
 		goto err_memory;
 
-	/* Allocate memory for the GMU log region */
-	ret = a6xx_gmu_memory_alloc(gmu, &gmu->log, SZ_4K, 0, "log");
+	/* Allocate memory for for the HFI queues */
+	ret = a6xx_gmu_memory_alloc(gmu, &gmu->hfi, SZ_16K, 0, "hfi");
 	if (ret)
 		goto err_memory;
 

-- 
2.40.1