[PATCH v1 2/3] drm/msm/adreno: Add support for X185 GPU

[Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx>]

Add support in drm/msm driver for the Adreno X185 gpu found in
Snapdragon X1 Elite chipset.

Signed-off-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx>
---

 drivers/gpu/drm/msm/adreno/a6xx_gmu.c      | 19 +++++++++++++++----
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c      |  6 ++----
 drivers/gpu/drm/msm/adreno/adreno_device.c | 14 ++++++++++++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.h    |  5 +++++
 4 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 0e3dfd4c2bc8..168a4bddfaf2 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -830,8 +830,10 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, unsigned int state)
 	 */
 	gmu_write(gmu, REG_A6XX_GMU_CM3_CFG, 0x4052);
 
+	if (adreno_is_x185(adreno_gpu)) {
+		chipid = 0x7050001;
 	/* NOTE: A730 may also fall in this if-condition with a future GMU fw update. */
-	if (adreno_is_a7xx(adreno_gpu) && !adreno_is_a730(adreno_gpu)) {
+	} else if (adreno_is_a7xx(adreno_gpu) && !adreno_is_a730(adreno_gpu)) {
 		/* A7xx GPUs have obfuscated chip IDs. Use constant maj = 7 */
 		chipid = FIELD_PREP(GENMASK(31, 24), 0x7);
 
@@ -1329,9 +1331,18 @@ static int a6xx_gmu_rpmh_arc_votes_init(struct device *dev, u32 *votes,
 	if (!pri_count)
 		return -EINVAL;
 
-	sec = cmd_db_read_aux_data("mx.lvl", &sec_count);
-	if (IS_ERR(sec))
-		return PTR_ERR(sec);
+	/*
+	 * Some targets have a separate gfx mxc rail. So try to read that first and then fall back
+	 * to regular mx rail if it is missing
+	 */
+	sec = cmd_db_read_aux_data("gmxc.lvl", &sec_count);
+	if (PTR_ERR_OR_ZERO(sec) == -EPROBE_DEFER) {
+		return -EPROBE_DEFER;
+	} else if (IS_ERR(sec)) {
+		sec = cmd_db_read_aux_data("mx.lvl", &sec_count);
+		if (IS_ERR(sec))
+			return PTR_ERR(sec);
+	}
 
 	sec_count >>= 1;
 	if (!sec_count)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 973872ad0474..97837f7f2a40 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1319,9 +1319,7 @@ static void a6xx_set_cp_protect(struct msm_gpu *gpu)
 		count = ARRAY_SIZE(a660_protect);
 		count_max = 48;
 		BUILD_BUG_ON(ARRAY_SIZE(a660_protect) > 48);
-	} else if (adreno_is_a730(adreno_gpu) ||
-		   adreno_is_a740(adreno_gpu) ||
-		   adreno_is_a750(adreno_gpu)) {
+	} else if (adreno_is_a7xx(adreno_gpu)) {
 		regs = a730_protect;
 		count = ARRAY_SIZE(a730_protect);
 		count_max = 48;
@@ -1891,7 +1889,7 @@ static int hw_init(struct msm_gpu *gpu)
 	gpu_write(gpu, REG_A6XX_UCHE_CLIENT_PF, BIT(7) | 0x1);
 
 	/* Set weights for bicubic filtering */
-	if (adreno_is_a650_family(adreno_gpu)) {
+	if (adreno_is_a650_family(adreno_gpu) || adreno_is_x185(adreno_gpu)) {
 		gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_0, 0);
 		gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_1,
 			0x3fe05ff4);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index c3703a51287b..139c7d828749 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -568,6 +568,20 @@ static const struct adreno_info gpulist[] = {
 		.zapfw = "a740_zap.mdt",
 		.hwcg = a740_hwcg,
 		.address_space_size = SZ_16G,
+	}, {
+		.chip_ids = ADRENO_CHIP_IDS(0x43050c01), /* "C512v2" */
+		.family = ADRENO_7XX_GEN2,
+		.fw = {
+			[ADRENO_FW_SQE] = "gen70500_sqe.fw",
+			[ADRENO_FW_GMU] = "gen70500_gmu.bin",
+		},
+		.gmem = 3 * SZ_1M,
+		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
+		.quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
+			  ADRENO_QUIRK_HAS_HW_APRIV,
+		.init = a6xx_gpu_init,
+		.hwcg = a740_hwcg,
+		.address_space_size = SZ_16G,
 	}, {
 		.chip_ids = ADRENO_CHIP_IDS(0x43051401), /* "C520v2" */
 		.family = ADRENO_7XX_GEN3,
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 77526892eb8c..d9ea8e0f6ad5 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -448,6 +448,11 @@ static inline int adreno_is_a750(struct adreno_gpu *gpu)
 	return gpu->info->chip_ids[0] == 0x43051401;
 }
 
+static inline int adreno_is_x185(struct adreno_gpu *gpu)
+{
+	return gpu->info->chip_ids[0] == 0x43050c01;
+}
+
 static inline int adreno_is_a740_family(struct adreno_gpu *gpu)
 {
 	if (WARN_ON_ONCE(!gpu->info))
-- 
2.45.1