drm/msm/adreno: support for adreno 430.

Signed-off-by: Craig Stout <cstout@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/adreno/a4xx_gpu.c

@@ -102,11 +102,17 @@ static void a4xx_enable_hwcg(struct msm_gpu *gpu)
 	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00000222);
 	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL_HLSQ , 0x00000000);
 	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_HYST_HLSQ, 0x00000000);
-	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_DELAY_HLSQ, 0x00020000);
-	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL, 0xAAAAAAAA);
+	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_DELAY_HLSQ, 0x00220000);
+	/* Early A430's have a timing issue with SP/TP power collapse;
+	   disabling HW clock gating prevents it. */
+	if (adreno_is_a430(adreno_gpu) && adreno_gpu->rev.patchid < 2)
+		gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL, 0);
+	else
+		gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL, 0xAAAAAAAA);
 	gpu_write(gpu, REG_A4XX_RBBM_CLOCK_CTL2, 0);
 }
 
+
 static void a4xx_me_init(struct msm_gpu *gpu)
 {
 	struct msm_ringbuffer *ring = gpu->rb;
@@ -141,7 +147,7 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 	uint32_t *ptr, len;
 	int i, ret;
 
-	if (adreno_is_a4xx(adreno_gpu)) {
+	if (adreno_is_a420(adreno_gpu)) {
 		gpu_write(gpu, REG_A4XX_VBIF_ABIT_SORT, 0x0001001F);
 		gpu_write(gpu, REG_A4XX_VBIF_ABIT_SORT_CONF, 0x000000A4);
 		gpu_write(gpu, REG_A4XX_VBIF_GATE_OFF_WRREQ_EN, 0x00000001);
@@ -150,6 +156,13 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 		gpu_write(gpu, REG_A4XX_VBIF_IN_WR_LIM_CONF0, 0x18181818);
 		gpu_write(gpu, REG_A4XX_VBIF_IN_WR_LIM_CONF1, 0x00000018);
 		gpu_write(gpu, REG_A4XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x00000003);
+	} else if (adreno_is_a430(adreno_gpu)) {
+		gpu_write(gpu, REG_A4XX_VBIF_GATE_OFF_WRREQ_EN, 0x00000001);
+		gpu_write(gpu, REG_A4XX_VBIF_IN_RD_LIM_CONF0, 0x18181818);
+		gpu_write(gpu, REG_A4XX_VBIF_IN_RD_LIM_CONF1, 0x00000018);
+		gpu_write(gpu, REG_A4XX_VBIF_IN_WR_LIM_CONF0, 0x18181818);
+		gpu_write(gpu, REG_A4XX_VBIF_IN_WR_LIM_CONF1, 0x00000018);
+		gpu_write(gpu, REG_A4XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x00000003);
 	} else {
 		BUG();
 	}
@@ -161,6 +174,10 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 	gpu_write(gpu, REG_A4XX_RBBM_SP_HYST_CNT, 0x10);
 	gpu_write(gpu, REG_A4XX_RBBM_WAIT_IDLE_CLOCKS_CTL, 0x10);
 
+	if (adreno_is_a430(adreno_gpu)) {
+		gpu_write(gpu, REG_A4XX_RBBM_WAIT_IDLE_CLOCKS_CTL2, 0x30);
+	}
+
 	 /* Enable the RBBM error reporting bits */
 	gpu_write(gpu, REG_A4XX_RBBM_AHB_CTL0, 0x00000001);
 
@@ -183,6 +200,9 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 	/* Turn on performance counters: */
 	gpu_write(gpu, REG_A4XX_RBBM_PERFCTR_CTL, 0x01);
 
+	if (adreno_is_a430(adreno_gpu))
+		gpu_write(gpu, REG_A4XX_UCHE_CACHE_WAYS_VFD, 0x07);
+
 	/* Disable L2 bypass to avoid UCHE out of bounds errors */
 	gpu_write(gpu, REG_A4XX_UCHE_TRAP_BASE_LO, 0xffff0000);
 	gpu_write(gpu, REG_A4XX_UCHE_TRAP_BASE_HI, 0xffff0000);
@@ -190,6 +210,15 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 	gpu_write(gpu, REG_A4XX_CP_DEBUG, (1 << 25) |
 			(adreno_is_a420(adreno_gpu) ? (1 << 29) : 0));
 
+	/* On A430 enable SP regfile sleep for power savings */
+	/* TODO downstream does this for !420, so maybe applies for 405 too? */
+	if (!adreno_is_a420(adreno_gpu)) {
+		gpu_write(gpu, REG_A4XX_RBBM_SP_REGFILE_SLEEP_CNTL_0,
+			0x00000441);
+		gpu_write(gpu, REG_A4XX_RBBM_SP_REGFILE_SLEEP_CNTL_1,
+			0x00000441);
+	}
+
 	a4xx_enable_hwcg(gpu);
 
 	/*
@@ -204,9 +233,11 @@ static int a4xx_hw_init(struct msm_gpu *gpu)
 		gpu_write(gpu, REG_A4XX_RBBM_CLOCK_DELAY_HLSQ, val);
 	}
 
-	ret = adreno_hw_init(gpu);
-	if (ret)
-		return ret;
+	if (!adreno_is_a430(adreno_gpu)) {
+		ret = adreno_hw_init(gpu);
+		if (ret)
+			return ret;
+	}
 
 	/* setup access protection: */
 	gpu_write(gpu, REG_A4XX_CP_PROTECT_CTRL, 0x00000007);

drivers/gpu/drm/msm/adreno/adreno_device.c

@@ -69,6 +69,14 @@ static const struct adreno_info gpulist[] = {
 		.pfpfw = "a420_pfp.fw",
 		.gmem  = (SZ_1M + SZ_512K),
 		.init  = a4xx_gpu_init,
+	}, {
+		.rev   = ADRENO_REV(4, 3, 0, ANY_ID),
+		.revn  = 430,
+		.name  = "A430",
+		.pm4fw = "a420_pm4.fw",
+		.pfpfw = "a420_pfp.fw",
+		.gmem  = (SZ_1M + SZ_512K),
+		.init  = a4xx_gpu_init,
 	},
 };
 

drivers/gpu/drm/msm/adreno/adreno_gpu.c

@@ -140,7 +140,8 @@ int adreno_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit,
 			if (priv->lastctx == ctx)
 				break;
 		case MSM_SUBMIT_CMD_BUF:
-			OUT_PKT3(ring, CP_INDIRECT_BUFFER_PFD, 2);
+			OUT_PKT3(ring, adreno_is_a430(adreno_gpu) ?
+				CP_INDIRECT_BUFFER_PFE : CP_INDIRECT_BUFFER_PFD, 2);
 			OUT_RING(ring, submit->cmd[i].iova);
 			OUT_RING(ring, submit->cmd[i].size);
 			ibs++;

drivers/gpu/drm/msm/adreno/adreno_gpu.h

@@ -228,6 +228,11 @@ static inline int adreno_is_a420(struct adreno_gpu *gpu)
 	return gpu->revn == 420;
 }
 
+static inline int adreno_is_a430(struct adreno_gpu *gpu)
+{
+       return gpu->revn == 430;
+}
+
 int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value);
 int adreno_hw_init(struct msm_gpu *gpu);
 uint32_t adreno_last_fence(struct msm_gpu *gpu);