drm/msm/adreno: Add A702 support

The A702 is a weird mix of 600 and 700 series.. Perhaps even a
testing ground for some A7xx features with good ol' A6xx silicon.
It's basically A610 that's been beefed up with some new registers
and hw features (like APRIV!), that was then cut back in size,
memory bus and some other ways.

Add support for it, tested with QCM2290 / RB1.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579752/
Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 84 insertions, 8 deletions

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index baee5bbb8ba2..0674aca0f8a3 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -837,6 +837,65 @@ const struct adreno_reglist a690_hwcg[] = {
 	{}
 };
 
+const struct adreno_reglist a702_hwcg[] = {
+	{ REG_A6XX_RBBM_CLOCK_CNTL_SP0, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_SP0, 0x00000081 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_SP0, 0x0000f3cf },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL3_TP0, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL4_TP0, 0x00022222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_TP0, 0x11111111 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY3_TP0, 0x11111111 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY4_TP0, 0x00011111 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_TP0, 0x77777777 },
+	{ REG_A6XX_RBBM_CLOCK_HYST2_TP0, 0x77777777 },
+	{ REG_A6XX_RBBM_CLOCK_HYST3_TP0, 0x77777777 },
+	{ REG_A6XX_RBBM_CLOCK_HYST4_TP0, 0x00077777 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_RB0, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL2_RB0, 0x01202222 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_CCU0, 0x00002220 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_RB_CCU0, 0x00040f00 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_RAC, 0x05522022 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL2_RAC, 0x00005555 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_RAC, 0x00000011 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_RAC, 0x00445044 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222 },
+	{ REG_A6XX_RBBM_CLOCK_MODE_VFD, 0x00002222 },
+	{ REG_A6XX_RBBM_CLOCK_MODE_GPC, 0x02222222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_HLSQ_2, 0x00000002 },
+	{ REG_A6XX_RBBM_CLOCK_MODE_HLSQ, 0x00002222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_VFD, 0x00002222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_GPC, 0x00000200 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_VFD, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_GPC, 0x04104004 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_HLSQ, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_UCHE, 0x00000004 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002 },
+	{ REG_A6XX_RBBM_ISDB_CNT, 0x00000182 },
+	{ REG_A6XX_RBBM_RAC_THRESHOLD_CNT, 0x00000000 },
+	{ REG_A6XX_RBBM_SP_HYST_CNT, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_FCHE, 0x00000222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_FCHE, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_FCHE, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_GLC, 0x00222222 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_GLC, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_GLC, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_CNTL_MHUB, 0x00000002 },
+	{ REG_A6XX_RBBM_CLOCK_DELAY_MHUB, 0x00000000 },
+	{ REG_A6XX_RBBM_CLOCK_HYST_MHUB, 0x00000000 },
+	{}
+};
+
 const struct adreno_reglist a730_hwcg[] = {
 	{ REG_A6XX_RBBM_CLOCK_CNTL_SP0, 0x02222222 },
 	{ REG_A6XX_RBBM_CLOCK_CNTL2_SP0, 0x02022222 },
@@ -968,6 +1027,8 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
 		clock_cntl_on = 0x8aa8aa02;
 	else if (adreno_is_a610(adreno_gpu))
 		clock_cntl_on = 0xaaa8aa82;
+	else if (adreno_is_a702(adreno_gpu))
+		clock_cntl_on = 0xaaaaaa82;
 	else
 		clock_cntl_on = 0x8aa8aa82;
 
@@ -1008,14 +1069,14 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
 		return;
 
 	/* Disable SP clock before programming HWCG registers */
-	if (!adreno_is_a610(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
+	if (!adreno_is_a610_family(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
 		gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 1, 0);
 
 	for (i = 0; (reg = &adreno_gpu->info->hwcg[i], reg->offset); i++)
 		gpu_write(gpu, reg->offset, state ? reg->value : 0);
 
 	/* Enable SP clock */
-	if (!adreno_is_a610(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
+	if (!adreno_is_a610_family(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
 		gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 0, 1);
 
 	gpu_write(gpu, REG_A6XX_RBBM_CLOCK_CNTL, state ? clock_cntl_on : 0);
@@ -1243,7 +1304,7 @@ static void a6xx_set_cp_protect(struct msm_gpu *gpu)
 	const u32 *regs = a6xx_protect;
 	unsigned i, count, count_max;
 
-	if (adreno_is_a650(adreno_gpu)) {
+	if (adreno_is_a650(adreno_gpu) || adreno_is_a702(adreno_gpu)) {
 		regs = a650_protect;
 		count = ARRAY_SIZE(a650_protect);
 		count_max = 48;
@@ -1340,6 +1401,12 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
 		gpu->ubwc_config.rgb565_predicator = 1;
 		gpu->ubwc_config.uavflagprd_inv = 2;
 	}
+
+	if (adreno_is_a702(gpu)) {
+		gpu->ubwc_config.highest_bank_bit = 14;
+		gpu->ubwc_config.min_acc_len = 1;
+		gpu->ubwc_config.ubwc_mode = 2;
+	}
 }
 
 static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
@@ -1473,7 +1540,7 @@ static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
 		return false;
 
 	/* A7xx is safe! */
-	if (adreno_is_a7xx(adreno_gpu))
+	if (adreno_is_a7xx(adreno_gpu) || adreno_is_a702(adreno_gpu))
 		return true;
 
 	/*
@@ -1691,7 +1758,7 @@ static int hw_init(struct msm_gpu *gpu)
 	a6xx_set_hwcg(gpu, true);
 
 	/* VBIF/GBIF start*/
-	if (adreno_is_a610(adreno_gpu) ||
+	if (adreno_is_a610_family(adreno_gpu) ||
 	    adreno_is_a640_family(adreno_gpu) ||
 	    adreno_is_a650_family(adreno_gpu) ||
 	    adreno_is_a7xx(adreno_gpu)) {
@@ -1725,6 +1792,7 @@ static int hw_init(struct msm_gpu *gpu)
 	}
 
 	if (!(adreno_is_a650_family(adreno_gpu) ||
+	      adreno_is_a702(adreno_gpu) ||
 	      adreno_is_a730(adreno_gpu))) {
 		gmem_range_min = adreno_is_a740_family(adreno_gpu) ? SZ_16M : SZ_1M;
 
@@ -1745,7 +1813,7 @@ static int hw_init(struct msm_gpu *gpu)
 	if (adreno_is_a640_family(adreno_gpu) || adreno_is_a650_family(adreno_gpu)) {
 		gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x02000140);
 		gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x8040362c);
-	} else if (adreno_is_a610(adreno_gpu)) {
+	} else if (adreno_is_a610_family(adreno_gpu)) {
 		gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x00800060);
 		gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x40201b16);
 	} else if (!adreno_is_a7xx(adreno_gpu)) {
@@ -1760,13 +1828,18 @@ static int hw_init(struct msm_gpu *gpu)
 	if (adreno_is_a610(adreno_gpu)) {
 		gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 48);
 		gpu_write(gpu, REG_A6XX_CP_MEM_POOL_DBG_ADDR, 47);
+	} else if (adreno_is_a702(adreno_gpu)) {
+		gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 64);
+		gpu_write(gpu, REG_A6XX_CP_MEM_POOL_DBG_ADDR, 63);
 	} else if (!adreno_is_a7xx(adreno_gpu))
 		gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 128);
 
 	/* Setting the primFifo thresholds default values,
 	 * and vccCacheSkipDis=1 bit (0x200) for A640 and newer
 	*/
-	if (adreno_is_a690(adreno_gpu))
+	if (adreno_is_a702(adreno_gpu))
+		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x0000c000);
+	else if (adreno_is_a690(adreno_gpu))
 		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00800200);
 	else if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu))
 		gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300200);
@@ -1806,7 +1879,7 @@ static int hw_init(struct msm_gpu *gpu)
 		gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x4fffff);
 	else if (adreno_is_a619(adreno_gpu))
 		gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x3fffff);
-	else if (adreno_is_a610(adreno_gpu))
+	else if (adreno_is_a610(adreno_gpu) || adreno_is_a702(adreno_gpu))
 		gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x3ffff);
 	else
 		gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x1fffff);
@@ -1842,6 +1915,9 @@ static int hw_init(struct msm_gpu *gpu)
 		else
 			gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, 0x1);
 		gpu_write(gpu, REG_A6XX_RBBM_GBIF_CLIENT_QOS_CNTL, 0x0);
+	} else if (adreno_is_a702(adreno_gpu)) {
+		/* Something to do with the HLSQ cluster */
+		gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, BIT(24));
 	}
 
 	if (adreno_is_a690(adreno_gpu))