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Subject[PATCH v3] drm/msm/adreno: Add A540 support
Date
The A540 is a derivative of the A530, and is found in the MSM8998 SoC.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
---

v3:
-Adjusted MERCIU for A540 for best performance.

drivers/gpu/drm/msm/adreno/a5xx.xml.h | 28 ++++----
drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 26 +++++++-
drivers/gpu/drm/msm/adreno/a5xx_power.c | 76 +++++++++++++++++++++-
drivers/gpu/drm/msm/adreno/adreno_device.c | 18 +++++
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 6 ++
5 files changed, 137 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx.xml.h b/drivers/gpu/drm/msm/adreno/a5xx.xml.h
index cf4fe14ddd6e..4a61d4e72c98 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx.xml.h
+++ b/drivers/gpu/drm/msm/adreno/a5xx.xml.h
@@ -8,19 +8,19 @@ This file was generated by the rules-ng-ng headergen tool in this git repository
git clone https://github.com/freedreno/envytools.git

The rules-ng-ng source files this header was generated from are:
-- /home/robclark/src/envytools/rnndb/adreno.xml ( 501 bytes, from 2018-07-03 19:37:13)
-- /home/robclark/src/envytools/rnndb/freedreno_copyright.xml ( 1572 bytes, from 2018-07-03 19:37:13)
-- /home/robclark/src/envytools/rnndb/adreno/a2xx.xml ( 42463 bytes, from 2018-11-19 13:44:03)
-- /home/robclark/src/envytools/rnndb/adreno/adreno_common.xml ( 14201 bytes, from 2018-12-02 17:29:54)
-- /home/robclark/src/envytools/rnndb/adreno/adreno_pm4.xml ( 43052 bytes, from 2018-12-02 17:29:54)
-- /home/robclark/src/envytools/rnndb/adreno/a3xx.xml ( 83840 bytes, from 2018-07-03 19:37:13)
-- /home/robclark/src/envytools/rnndb/adreno/a4xx.xml ( 112086 bytes, from 2018-07-03 19:37:13)
-- /home/robclark/src/envytools/rnndb/adreno/a5xx.xml ( 147240 bytes, from 2018-12-02 17:29:54)
-- /home/robclark/src/envytools/rnndb/adreno/a6xx.xml ( 140790 bytes, from 2018-12-02 17:29:54)
-- /home/robclark/src/envytools/rnndb/adreno/a6xx_gmu.xml ( 10431 bytes, from 2018-09-14 13:03:07)
-- /home/robclark/src/envytools/rnndb/adreno/ocmem.xml ( 1773 bytes, from 2018-07-03 19:37:13)
-
-Copyright (C) 2013-2018 by the following authors:
+- /home/ubuntu/envytools/envytools/rnndb/./adreno.xml ( 501 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/freedreno_copyright.xml ( 1572 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a2xx.xml ( 79608 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/adreno_common.xml ( 14239 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/adreno_pm4.xml ( 43155 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a3xx.xml ( 83840 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a4xx.xml ( 112086 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a5xx.xml ( 147291 bytes, from 2019-05-29 14:51:41)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a6xx.xml ( 148461 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/a6xx_gmu.xml ( 10431 bytes, from 2019-05-29 01:28:15)
+- /home/ubuntu/envytools/envytools/rnndb/adreno/ocmem.xml ( 1773 bytes, from 2019-05-29 01:28:15)
+
+Copyright (C) 2013-2019 by the following authors:
- Rob Clark <robdclark@gmail.com> (robclark)
- Ilia Mirkin <imirkin@alum.mit.edu> (imirkin)

@@ -2148,6 +2148,8 @@ static inline uint32_t A5XX_VSC_RESOLVE_CNTL_Y(uint32_t val)

#define REG_A5XX_HLSQ_TIMEOUT_THRESHOLD_1 0x00000e01

+#define REG_A5XX_HLSQ_DBG_ECO_CNTL 0x00000e04
+
#define REG_A5XX_HLSQ_ADDR_MODE_CNTL 0x00000e05

#define REG_A5XX_HLSQ_MODE_CNTL 0x00000e06
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index e5fcefa49f19..556402f18908 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -318,12 +318,18 @@ static const struct {

void a5xx_set_hwcg(struct msm_gpu *gpu, bool state)
{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
unsigned int i;

for (i = 0; i < ARRAY_SIZE(a5xx_hwcg); i++)
gpu_write(gpu, a5xx_hwcg[i].offset,
state ? a5xx_hwcg[i].value : 0);

+ if (adreno_is_a540(adreno_gpu)) {
+ gpu_write(gpu, REG_A5XX_RBBM_CLOCK_DELAY_GPMU, state ? 0x00000770 : 0);
+ gpu_write(gpu, REG_A5XX_RBBM_CLOCK_HYST_GPMU, state ? 0x00000004 : 0);
+ }
+
gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, state ? 0xAAA8AA00 : 0);
gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, state ? 0x182 : 0x180);
}
@@ -507,6 +513,9 @@ static int a5xx_hw_init(struct msm_gpu *gpu)

gpu_write(gpu, REG_A5XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x00000003);

+ if (adreno_is_a540(adreno_gpu))
+ gpu_write(gpu, REG_A5XX_VBIF_GATE_OFF_WRREQ_EN, 0x00000009);
+
/* Make all blocks contribute to the GPU BUSY perf counter */
gpu_write(gpu, REG_A5XX_RBBM_PERFCTR_GPU_BUSY_MASKED, 0xFFFFFFFF);

@@ -567,7 +576,10 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_HI, 0x00000000);

gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x40);
- gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40);
+ if (adreno_is_a530(adreno_gpu))
+ gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40);
+ if (adreno_is_a540(adreno_gpu))
+ gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x80000060);
gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x40201B16);

@@ -592,6 +604,8 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
/* Set the highest bank bit */
gpu_write(gpu, REG_A5XX_TPL1_MODE_CNTL, 2 << 7);
gpu_write(gpu, REG_A5XX_RB_MODE_CNTL, 2 << 1);
+ if (adreno_is_a540(adreno_gpu))
+ gpu_write(gpu, REG_A5XX_UCHE_DBG_ECO_CNTL_2, 2);

/* Protect registers from the CP */
gpu_write(gpu, REG_A5XX_CP_PROTECT_CNTL, 0x00000007);
@@ -642,6 +656,16 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
REG_A5XX_RBBM_SECVID_TSB_TRUSTED_BASE_HI, 0x00000000);
gpu_write(gpu, REG_A5XX_RBBM_SECVID_TSB_TRUSTED_SIZE, 0x00000000);

+ /*
+ * VPC corner case with local memory load kill leads to corrupt
+ * internal state. Normal Disable does not work for all a5x chips.
+ * So do the following setting to disable it.
+ */
+ if (adreno_gpu->info->quirks & ADRENO_QUIRK_LMLOADKILL_DISABLE) {
+ gpu_rmw(gpu, REG_A5XX_VPC_DBG_ECO_CNTL, 0, BIT(23));
+ gpu_rmw(gpu, REG_A5XX_HLSQ_DBG_ECO_CNTL, BIT(18), 0);
+ }
+
ret = adreno_hw_init(gpu);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_power.c b/drivers/gpu/drm/msm/adreno/a5xx_power.c
index 70e65c94e525..bf12c61f9331 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_power.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c
@@ -32,6 +32,18 @@
#define AGC_POWER_CONFIG_PRODUCTION_ID 1
#define AGC_INIT_MSG_VALUE 0xBABEFACE

+/* AGC_LM_CONFIG (A540+) */
+#define AGC_LM_CONFIG (136/4)
+#define AGC_LM_CONFIG_GPU_VERSION_SHIFT 17
+#define AGC_LM_CONFIG_ENABLE_GPMU_ADAPTIVE 1
+#define AGC_LM_CONFIG_THROTTLE_DISABLE (2 << 8)
+#define AGC_LM_CONFIG_ISENSE_ENABLE (1 << 4)
+#define AGC_LM_CONFIG_ENABLE_ERROR (3 << 4)
+#define AGC_LM_CONFIG_LLM_ENABLED (1 << 16)
+#define AGC_LM_CONFIG_BCL_DISABLED (1 << 24)
+
+#define AGC_LEVEL_CONFIG (140/4)
+
static struct {
uint32_t reg;
uint32_t value;
@@ -116,7 +128,7 @@ static inline uint32_t _get_mvolts(struct msm_gpu *gpu, uint32_t freq)
}

/* Setup thermal limit management */
-static void a5xx_lm_setup(struct msm_gpu *gpu)
+static void a530_lm_setup(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu);
@@ -165,6 +177,45 @@ static void a5xx_lm_setup(struct msm_gpu *gpu)
gpu_write(gpu, AGC_INIT_MSG_MAGIC, AGC_INIT_MSG_VALUE);
}

+#define PAYLOAD_SIZE(_size) ((_size) * sizeof(u32))
+#define LM_DCVS_LIMIT 1
+#define LEVEL_CONFIG ~(0x303)
+
+static void a540_lm_setup(struct msm_gpu *gpu)
+{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+ u32 config;
+
+ /* The battery current limiter isn't enabled for A540 */
+ config = AGC_LM_CONFIG_BCL_DISABLED;
+ config |= adreno_gpu->rev.patchid << AGC_LM_CONFIG_GPU_VERSION_SHIFT;
+
+ /* For now disable GPMU side throttling */
+ config |= AGC_LM_CONFIG_THROTTLE_DISABLE;
+
+ /* Until we get clock scaling 0 is always the active power level */
+ gpu_write(gpu, REG_A5XX_GPMU_GPMU_VOLTAGE, 0x80000000 | 0);
+
+ /* Fixed at 6000 for now */
+ gpu_write(gpu, REG_A5XX_GPMU_GPMU_PWR_THRESHOLD, 0x80000000 | 6000);
+
+ gpu_write(gpu, AGC_MSG_STATE, 0x80000001);
+ gpu_write(gpu, AGC_MSG_COMMAND, AGC_POWER_CONFIG_PRODUCTION_ID);
+
+ gpu_write(gpu, AGC_MSG_PAYLOAD(0), 5448);
+ gpu_write(gpu, AGC_MSG_PAYLOAD(1), 1);
+
+ gpu_write(gpu, AGC_MSG_PAYLOAD(2), _get_mvolts(gpu, gpu->fast_rate));
+ gpu_write(gpu, AGC_MSG_PAYLOAD(3), gpu->fast_rate / 1000000);
+
+ gpu_write(gpu, AGC_MSG_PAYLOAD(AGC_LM_CONFIG), config);
+ gpu_write(gpu, AGC_MSG_PAYLOAD(AGC_LEVEL_CONFIG), LEVEL_CONFIG);
+ gpu_write(gpu, AGC_MSG_PAYLOAD_SIZE,
+ PAYLOAD_SIZE(AGC_LEVEL_CONFIG + 1));
+
+ gpu_write(gpu, AGC_INIT_MSG_MAGIC, AGC_INIT_MSG_VALUE);
+}
+
/* Enable SP/TP cpower collapse */
static void a5xx_pc_init(struct msm_gpu *gpu)
{
@@ -206,7 +257,8 @@ static int a5xx_gpmu_init(struct msm_gpu *gpu)
return -EINVAL;
}

- gpu_write(gpu, REG_A5XX_GPMU_WFI_CONFIG, 0x4014);
+ if (adreno_is_a530(adreno_gpu))
+ gpu_write(gpu, REG_A5XX_GPMU_WFI_CONFIG, 0x4014);

/* Kick off the GPMU */
gpu_write(gpu, REG_A5XX_GPMU_CM3_SYSRESET, 0x0);
@@ -220,12 +272,26 @@ static int a5xx_gpmu_init(struct msm_gpu *gpu)
DRM_ERROR("%s: GPMU firmware initialization timed out\n",
gpu->name);

+ if (!adreno_is_a530(adreno_gpu)) {
+ u32 val = gpu_read(gpu, REG_A5XX_GPMU_GENERAL_1);
+
+ if (val)
+ DRM_ERROR("%s: GPMU firmware initialization failed: %d\n",
+ gpu->name, val);
+ }
+
return 0;
}

/* Enable limits management */
static void a5xx_lm_enable(struct msm_gpu *gpu)
{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+
+ /* This init sequence only applies to A530 */
+ if (!adreno_is_a530(adreno_gpu))
+ return;
+
gpu_write(gpu, REG_A5XX_GDPM_INT_MASK, 0x0);
gpu_write(gpu, REG_A5XX_GDPM_INT_EN, 0x0A);
gpu_write(gpu, REG_A5XX_GPMU_GPMU_VOLTAGE_INTR_EN_MASK, 0x01);
@@ -237,10 +303,14 @@ static void a5xx_lm_enable(struct msm_gpu *gpu)

int a5xx_power_init(struct msm_gpu *gpu)
{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
int ret;

/* Set up the limits management */
- a5xx_lm_setup(gpu);
+ if (adreno_is_a530(adreno_gpu))
+ a530_lm_setup(gpu);
+ else
+ a540_lm_setup(gpu);

/* Set up SP/TP power collpase */
a5xx_pc_init(gpu);
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index b907245d3d96..cb7dadaf1669 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -144,6 +144,24 @@ static const struct adreno_info gpulist[] = {
ADRENO_QUIRK_FAULT_DETECT_MASK,
.init = a5xx_gpu_init,
.zapfw = "a530_zap.mdt",
+ }, {
+ .rev = ADRENO_REV(5, 4, 0, 2),
+ .revn = 540,
+ .name = "A540",
+ .fw = {
+ [ADRENO_FW_PM4] = "a530_pm4.fw",
+ [ADRENO_FW_PFP] = "a530_pfp.fw",
+ [ADRENO_FW_GPMU] = "a540_gpmu.fw2",
+ },
+ .gmem = SZ_1M,
+ /*
+ * Increase inactive period to 250 to avoid bouncing
+ * the GDSC which appears to make it grumpy
+ */
+ .inactive_period = 250,
+ .quirks = ADRENO_QUIRK_LMLOADKILL_DISABLE,
+ .init = a5xx_gpu_init,
+ .zapfw = "a540_zap.mdt",
}, {
.rev = ADRENO_REV(6, 3, 0, ANY_ID),
.revn = 630,
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 0925606ec9b5..d67c1a69c49a 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -61,6 +61,7 @@ enum {
enum adreno_quirks {
ADRENO_QUIRK_TWO_PASS_USE_WFI = 1,
ADRENO_QUIRK_FAULT_DETECT_MASK = 2,
+ ADRENO_QUIRK_LMLOADKILL_DISABLE = 3,
};

struct adreno_rev {
@@ -221,6 +222,11 @@ static inline int adreno_is_a530(struct adreno_gpu *gpu)
return gpu->revn == 530;
}

+static inline int adreno_is_a540(struct adreno_gpu *gpu)
+{
+ return gpu->revn == 540;
+}
+
int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value);
const struct firmware *adreno_request_fw(struct adreno_gpu *adreno_gpu,
const char *fwname);
--
2.17.1
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