linux-kernel - [PATCH v2 2/6] drm/msm/a6xx: Fix gpucc register block for A621

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Message-ID: <20250228-a623-gpu-support-v2-2-aea654ecc1d3@quicinc.com>
Date: Fri, 28 Feb 2025 01:37:50 +0530
From: Akhil P Oommen <quic_akhilpo@...cinc.com>
To: Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        "Konrad
 Dybcio" <konradybcio@...nel.org>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Simona
 Vetter" <simona@...ll.ch>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Jie Zhang <quic_jiezh@...cinc.com>,
        "Akhil P
 Oommen" <quic_akhilpo@...cinc.com>
Subject: [PATCH v2 2/6] drm/msm/a6xx: Fix gpucc register block for A621

From: Jie Zhang <quic_jiezh@...cinc.com>

Adreno 621 has a different memory map for GPUCC block. So update
a6xx_gpu_state code to dump the correct set of gpucc registers.

Signed-off-by: Jie Zhang <quic_jiezh@...cinc.com>
Signed-off-by: Akhil P Oommen <quic_akhilpo@...cinc.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c |  9 +++++++--
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 12 ++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
index 81763876e4029713994b47729a2cec7e1dd3fbb9..2c10474ccc95cf2515c6583007a9b5cc478f836c 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c
@@ -1226,8 +1226,13 @@ static void a6xx_get_gmu_registers(struct msm_gpu *gpu,
 		&a6xx_state->gmu_registers[0], false);
 	_a6xx_get_gmu_registers(gpu, a6xx_state, &a6xx_gmu_reglist[1],
 		&a6xx_state->gmu_registers[1], true);
-	_a6xx_get_gmu_registers(gpu, a6xx_state, &a6xx_gpucc_reg,
-		&a6xx_state->gmu_registers[2], false);
+
+	if (adreno_is_a621(adreno_gpu))
+		_a6xx_get_gmu_registers(gpu, a6xx_state, &a621_gpucc_reg,
+			&a6xx_state->gmu_registers[2], false);
+	else
+		_a6xx_get_gmu_registers(gpu, a6xx_state, &a6xx_gpucc_reg,
+			&a6xx_state->gmu_registers[2], false);
 
 	if (!a6xx_gmu_gx_is_on(&a6xx_gpu->gmu))
 		return;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
index 31c7462ab6d7b877c55abc04b98c0a80dac87759..e545106c70be713b07904187a9e246e08499f228 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
@@ -376,6 +376,17 @@ static const u32 a6xx_gmu_gpucc_registers[] = {
 	0xbc00, 0xbc16, 0xbc20, 0xbc27,
 };
 
+static const u32 a621_gmu_gpucc_registers[] = {
+	/* GPU CC */
+	0x9800, 0x980e, 0x9c00, 0x9c0e, 0xb000, 0xb004, 0xb400, 0xb404,
+	0xb800, 0xb804, 0xbc00, 0xbc05, 0xbc14, 0xbc1d, 0xbc2a, 0xbc30,
+	0xbc32, 0xbc32, 0xbc41, 0xbc55, 0xbc66, 0xbc68, 0xbc78, 0xbc7a,
+	0xbc89, 0xbc8a, 0xbc9c, 0xbc9e, 0xbca0, 0xbca3, 0xbcb3, 0xbcb5,
+	0xbcc5, 0xbcc7, 0xbcd6, 0xbcd8, 0xbce8, 0xbce9, 0xbcf9, 0xbcfc,
+	0xbd0b, 0xbd0c, 0xbd1c, 0xbd1e, 0xbd40, 0xbd70, 0xbe00, 0xbe16,
+	0xbe20, 0xbe2d,
+};
+
 static const u32 a6xx_gmu_cx_rscc_registers[] = {
 	/* GPU RSCC */
 	0x008c, 0x008c, 0x0101, 0x0102, 0x0340, 0x0342, 0x0344, 0x0347,
@@ -390,6 +401,7 @@ static const struct a6xx_registers a6xx_gmu_reglist[] = {
 };
 
 static const struct a6xx_registers a6xx_gpucc_reg = REGS(a6xx_gmu_gpucc_registers, 0, 0);
+static const struct a6xx_registers a621_gpucc_reg = REGS(a621_gmu_gpucc_registers, 0, 0);
 
 static u32 a6xx_get_cp_roq_size(struct msm_gpu *gpu);
 static u32 a7xx_get_cp_roq_size(struct msm_gpu *gpu);

-- 
2.48.1