[PATCH 2/2] drm/msm/a6xx: Add support for Adreno 7c Gen 3 gpu
From: Akhil P Oommen
Date: Fri Jul 23 2021 - 06:38:43 EST
This patch adds support for the gpu found in the Snapdragon 7c Gen 3
compute platform. This gpu is similar to the exisiting a660 gpu with
minor delta in the programing sequence. As the Adreno GPUs are moving
away from a numeric chipid based naming scheme to a string, it was
decided to use 0x06030500 as the gpu id of this gpu to communicate
to the userspace driver.
Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 20 ++++++++++++++++++-
drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 1 +
drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h | 2 ++
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 21 ++++++++++++++------
drivers/gpu/drm/msm/adreno/a6xx_hfi.c | 32 ++++++++++++++++++++++++++++++
drivers/gpu/drm/msm/adreno/adreno_device.c | 12 +++++++++++
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 11 ++++++++--
7 files changed, 90 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index b349692..332301f 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -933,6 +933,7 @@ int a6xx_gmu_resume(struct a6xx_gpu *a6xx_gpu)
/* Use a known rate to bring up the GMU */
clk_set_rate(gmu->core_clk, 200000000);
+ clk_set_rate(gmu->hub_clk, 150000000);
ret = clk_bulk_prepare_enable(gmu->nr_clocks, gmu->clocks);
if (ret) {
pm_runtime_put(gmu->gxpd);
@@ -1094,6 +1095,7 @@ static void a6xx_gmu_shutdown(struct a6xx_gmu *gmu)
int a6xx_gmu_stop(struct a6xx_gpu *a6xx_gpu)
{
+ struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
struct msm_gpu *gpu = &a6xx_gpu->base.base;
@@ -1117,9 +1119,22 @@ int a6xx_gmu_stop(struct a6xx_gpu *a6xx_gpu)
* domain. Usually the GMU does this but only if the shutdown sequence
* was successful
*/
- if (!IS_ERR_OR_NULL(gmu->gxpd))
+ if (!IS_ERR_OR_NULL(gmu->gxpd)) {
+ /*
+ * Toggle the loop_en bit, across disabling the gx gdsc,
+ * with a delay of 10 XO cycles before disabling gx
+ * gdsc. This is to prevent CPR measurements from
+ * failing.
+ */
+ if (adreno_is_a660(adreno_gpu))
+ gmu_rmw(gmu, REG_A6XX_GPU_CPR_FSM_CTL, 1, 0);
+
pm_runtime_put_sync(gmu->gxpd);
+ if (adreno_is_a660(adreno_gpu))
+ gmu_rmw(gmu, REG_A6XX_GPU_CPR_FSM_CTL, 1, 1);
+ }
+
clk_bulk_disable_unprepare(gmu->nr_clocks, gmu->clocks);
pm_runtime_put_sync(gmu->dev);
@@ -1393,6 +1408,9 @@ static int a6xx_gmu_clocks_probe(struct a6xx_gmu *gmu)
gmu->core_clk = msm_clk_bulk_get_clock(gmu->clocks,
gmu->nr_clocks, "gmu");
+ gmu->hub_clk = msm_clk_bulk_get_clock(gmu->clocks,
+ gmu->nr_clocks, "hub");
+
return 0;
}
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
index 71dfa600..3c74f64 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
@@ -66,6 +66,7 @@ struct a6xx_gmu {
int nr_clocks;
struct clk_bulk_data *clocks;
struct clk *core_clk;
+ struct clk *hub_clk;
/* current performance index set externally */
int current_perf_index;
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
index 8115892..d46733f 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.xml.h
@@ -479,5 +479,7 @@ static inline uint32_t A6XX_GMU_GPU_NAP_CTRL_SID(uint32_t val)
#define REG_A6XX_RSCC_TCS3_DRV0_STATUS 0x0000053e
+#define REG_A6XX_GPU_CPR_FSM_CTL 0x0000c001
+
#endif /* A6XX_GMU_XML */
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 183b9f9..c0882536 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -694,6 +694,13 @@ static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
uavflagprd_inv = 2;
}
+ if (adreno_is_7c3(adreno_gpu)) {
+ lower_bit = 1;
+ amsbc = 1;
+ rgb565_predicator = 1;
+ uavflagprd_inv = 2;
+ }
+
gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL,
rgb565_predicator << 11 | amsbc << 4 | lower_bit << 1);
gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, lower_bit << 1);
@@ -950,10 +957,10 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
/* Setting the primFifo thresholds default values,
* and vccCacheSkipDis=1 bit (0x200) for A640 and newer
*/
- if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu))
- gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300200);
- else if (adreno_is_a640(adreno_gpu))
+ if (adreno_is_a640(adreno_gpu) || adreno_is_7c3(adreno_gpu))
gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00200200);
+ else if (adreno_is_a650(adreno_gpu) || adreno_is_a660(adreno_gpu))
+ gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300200);
else
gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00180000);
@@ -993,8 +1000,9 @@ static int a6xx_hw_init(struct msm_gpu *gpu)
if (adreno_is_a660(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, 0x1);
gpu_write(gpu, REG_A6XX_RBBM_GBIF_CLIENT_QOS_CNTL, 0x0);
- /* Set dualQ + disable afull for A660 GPU but not for A635 */
- gpu_write(gpu, REG_A6XX_UCHE_CMDQ_CONFIG, 0x66906);
+ /* Set dualQ + disable afull for A660 GPU but not for 7c3 */
+ if (!adreno_is_7c3(adreno_gpu))
+ gpu_write(gpu, REG_A6XX_UCHE_CMDQ_CONFIG, 0x66906);
}
/* Enable expanded apriv for targets that support it */
@@ -1780,7 +1788,8 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
*/
info = adreno_info(config->rev);
- if (info && (info->revn == 650 || info->revn == 660))
+ if (info && (info->revn == 650 || info->revn == 660
+ || info->revn == ADRENO_REV_7C3))
adreno_gpu->base.hw_apriv = true;
a6xx_llc_slices_init(pdev, a6xx_gpu);
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
index 9194337..1451c2b 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
@@ -382,6 +382,36 @@ static void a660_build_bw_table(struct a6xx_hfi_msg_bw_table *msg)
msg->cnoc_cmds_data[1][0] = 0x60000001;
}
+static void adreno_7c3_build_bw_table(struct a6xx_hfi_msg_bw_table *msg)
+{
+ /*
+ * Send a single "off" entry just to get things running
+ * TODO: bus scaling
+ */
+ msg->bw_level_num = 1;
+
+ msg->ddr_cmds_num = 3;
+ msg->ddr_wait_bitmask = 0x07;
+
+ msg->ddr_cmds_addrs[0] = 0x50004;
+ msg->ddr_cmds_addrs[1] = 0x50000;
+ msg->ddr_cmds_addrs[2] = 0x50088;
+
+ msg->ddr_cmds_data[0][0] = 0x40000000;
+ msg->ddr_cmds_data[0][1] = 0x40000000;
+ msg->ddr_cmds_data[0][2] = 0x40000000;
+
+ /*
+ * These are the CX (CNOC) votes - these are used by the GMU but the
+ * votes are known and fixed for the target
+ */
+ msg->cnoc_cmds_num = 1;
+ msg->cnoc_wait_bitmask = 0x01;
+
+ msg->cnoc_cmds_addrs[0] = 0x5006c;
+ msg->cnoc_cmds_data[0][0] = 0x40000000;
+ msg->cnoc_cmds_data[1][0] = 0x60000001;
+}
static void a6xx_build_bw_table(struct a6xx_hfi_msg_bw_table *msg)
{
/* Send a single "off" entry since the 630 GMU doesn't do bus scaling */
@@ -432,6 +462,8 @@ static int a6xx_hfi_send_bw_table(struct a6xx_gmu *gmu)
a640_build_bw_table(&msg);
else if (adreno_is_a650(adreno_gpu))
a650_build_bw_table(&msg);
+ else if (adreno_is_7c3(adreno_gpu))
+ adreno_7c3_build_bw_table(&msg);
else if (adreno_is_a660(adreno_gpu))
a660_build_bw_table(&msg);
else
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 6dad801..063b847 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -300,6 +300,18 @@ static const struct adreno_info gpulist[] = {
.init = a6xx_gpu_init,
.zapfw = "a660_zap.mdt",
.hwcg = a660_hwcg,
+ }, {
+ .rev = ADRENO_REV(6, 3, 5, ANY_ID),
+ .revn = ADRENO_REV_7C3,
+ .name = "Adreno 7c Gen 3",
+ .fw = {
+ [ADRENO_FW_SQE] = "a660_sqe.fw",
+ [ADRENO_FW_GMU] = "a660_gmu.bin",
+ },
+ .gmem = SZ_512K,
+ .inactive_period = DRM_MSM_INACTIVE_PERIOD,
+ .init = a6xx_gpu_init,
+ .hwcg = a660_hwcg,
},
};
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 8dbe0d1..679bc59 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -247,15 +247,22 @@ static inline int adreno_is_a650(struct adreno_gpu *gpu)
return gpu->revn == 650;
}
+#define ADRENO_REV_7C3 0x06030500
+static inline int adreno_is_7c3(struct adreno_gpu *gpu)
+{
+ return gpu->revn == ADRENO_REV_7C3;
+}
+
static inline int adreno_is_a660(struct adreno_gpu *gpu)
{
- return gpu->revn == 660;
+ return gpu->revn == 660 || gpu->revn == ADRENO_REV_7C3;
}
/* check for a650, a660, or any derivatives */
static inline int adreno_is_a650_family(struct adreno_gpu *gpu)
{
- return gpu->revn == 650 || gpu->revn == 620 || gpu->revn == 660;
+ return gpu->revn == 650 || gpu->revn == 620 || gpu->revn == 660
+ || gpu->revn == ADRENO_REV_7C3;
}
int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value);
--
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