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

Akhil P Oommen
2024-06-23T11:08:57Z

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@quicinc.com>
---

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