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-rw-r--r--drivers/gpu/drm/msm/Makefile3
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx_gpu.c123
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx_gpu.h23
-rw-r--r--drivers/gpu/drm/msm/adreno/a5xx_power.c426
-rw-r--r--drivers/gpu/drm/msm/adreno/adreno_gpu.h3
5 files changed, 576 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 5c587d291198..9f035b10875b 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -53,7 +53,8 @@ msm_drm-y += adreno/adreno_device.o \
adreno/adreno_gpu.o \
adreno/a3xx_gpu.o \
adreno/a4xx_gpu.o \
- adreno/a5xx_gpu.o
+ adreno/a5xx_gpu.o \
+ adreno/a5xx_power.o
endif
msm_drm-$(CONFIG_DRM_MSM_MDP4) += mdp/mdp4/mdp4_crtc.o \
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 9c2a818620b6..fd92312529a6 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -463,6 +463,9 @@ 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);
+ /* Load the GPMU firmware before starting the HW init */
+ a5xx_gpmu_ucode_init(gpu);
+
ret = adreno_hw_init(gpu);
if (ret)
return ret;
@@ -480,6 +483,10 @@ static int a5xx_hw_init(struct msm_gpu *gpu)
if (ret)
return ret;
+ ret = a5xx_power_init(gpu);
+ if (ret)
+ return ret;
+
/*
* Send a pipeline event stat to get misbehaving counters to start
* ticking correctly
@@ -535,6 +542,12 @@ static void a5xx_destroy(struct msm_gpu *gpu)
drm_gem_object_unreference_unlocked(a5xx_gpu->pfp_bo);
}
+ if (a5xx_gpu->gpmu_bo) {
+ if (a5xx_gpu->gpmu_iova)
+ msm_gem_put_iova(a5xx_gpu->gpmu_bo, gpu->aspace);
+ drm_gem_object_unreference_unlocked(a5xx_gpu->gpmu_bo);
+ }
+
adreno_gpu_cleanup(adreno_gpu);
kfree(a5xx_gpu);
}
@@ -777,11 +790,55 @@ static void a5xx_dump(struct msm_gpu *gpu)
static int a5xx_pm_resume(struct msm_gpu *gpu)
{
- return msm_gpu_pm_resume(gpu);
+ int ret;
+
+ /* Turn on the core power */
+ ret = msm_gpu_pm_resume(gpu);
+ if (ret)
+ return ret;
+
+ /* Turn the RBCCU domain first to limit the chances of voltage droop */
+ gpu_write(gpu, REG_A5XX_GPMU_RBCCU_POWER_CNTL, 0x778000);
+
+ /* Wait 3 usecs before polling */
+ udelay(3);
+
+ ret = spin_usecs(gpu, 20, REG_A5XX_GPMU_RBCCU_PWR_CLK_STATUS,
+ (1 << 20), (1 << 20));
+ if (ret) {
+ DRM_ERROR("%s: timeout waiting for RBCCU GDSC enable: %X\n",
+ gpu->name,
+ gpu_read(gpu, REG_A5XX_GPMU_RBCCU_PWR_CLK_STATUS));
+ return ret;
+ }
+
+ /* Turn on the SP domain */
+ gpu_write(gpu, REG_A5XX_GPMU_SP_POWER_CNTL, 0x778000);
+ ret = spin_usecs(gpu, 20, REG_A5XX_GPMU_SP_PWR_CLK_STATUS,
+ (1 << 20), (1 << 20));
+ if (ret)
+ DRM_ERROR("%s: timeout waiting for SP GDSC enable\n",
+ gpu->name);
+
+ return ret;
}
static int a5xx_pm_suspend(struct msm_gpu *gpu)
{
+ /* Clear the VBIF pipe before shutting down */
+
+ gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0xF);
+ spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) & 0xF) == 0xF);
+
+ gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0);
+
+ /*
+ * Reset the VBIF before power collapse to avoid issue with FIFO
+ * entries
+ */
+ gpu_write(gpu, REG_A5XX_RBBM_BLOCK_SW_RESET_CMD, 0x003C0000);
+ gpu_write(gpu, REG_A5XX_RBBM_BLOCK_SW_RESET_CMD, 0x00000000);
+
return msm_gpu_pm_suspend(gpu);
}
@@ -826,6 +883,65 @@ static const struct adreno_gpu_funcs funcs = {
.get_timestamp = a5xx_get_timestamp,
};
+/* Read the limits management leakage from the efuses */
+static void a530_efuse_leakage(struct platform_device *pdev,
+ struct adreno_gpu *adreno_gpu, void *base,
+ size_t size)
+{
+ struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu);
+ unsigned int row0, row2;
+ unsigned int leakage_pwr_on, coeff;
+
+ if (size < 0x148)
+ return;
+
+ /* Leakage */
+ row0 = readl_relaxed(base + 0x134);
+ row2 = readl_relaxed(base + 0x144);
+
+ /* Read barrier to get the previous two reads */
+ rmb();
+
+ /* Get the leakage coefficient from device tree */
+ if (of_property_read_u32(pdev->dev.of_node,
+ "qcom,base-leakage-coefficent", &coeff))
+ return;
+
+ leakage_pwr_on = ((row2 >> 2) & 0xFF) * (1 << (row0 >> 1) & 0x03);
+ a5xx_gpu->lm_leakage = (leakage_pwr_on << 16) |
+ ((leakage_pwr_on * coeff) / 100);
+}
+
+/* Read target specific configuration from the efuses */
+static void a5xx_efuses_read(struct platform_device *pdev,
+ struct adreno_gpu *adreno_gpu)
+{
+ struct adreno_platform_config *config = pdev->dev.platform_data;
+ const struct adreno_info *info = adreno_info(config->rev);
+ struct resource *res;
+ void *base;
+
+ /*
+ * The adreno_gpu->revn mechanism isn't set up yet so we need to check
+ * it directly here
+ */
+ if (info->revn != 530)
+ return;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+ "qfprom_memory");
+ if (!res)
+ return;
+
+ base = ioremap(res->start, resource_size(res));
+ if (!base)
+ return;
+
+ a530_efuse_leakage(pdev, adreno_gpu, base, resource_size(res));
+
+ iounmap(base);
+}
+
struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
{
struct msm_drm_private *priv = dev->dev_private;
@@ -851,6 +967,11 @@ struct msm_gpu *a5xx_gpu_init(struct drm_device *dev)
adreno_gpu->registers = a5xx_registers;
adreno_gpu->reg_offsets = a5xx_register_offsets;
+ a5xx_gpu->lm_leakage = 0x4E001A;
+
+ /* Check the efuses for some configuration */
+ a5xx_efuses_read(pdev, adreno_gpu);
+
ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs);
if (ret) {
a5xx_destroy(&(a5xx_gpu->base.base));
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.h b/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
index 39a07f400b35..1590f845d554 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.h
@@ -30,8 +30,31 @@ struct a5xx_gpu {
struct drm_gem_object *pfp_bo;
uint64_t pfp_iova;
+
+ struct drm_gem_object *gpmu_bo;
+ uint64_t gpmu_iova;
+ uint32_t gpmu_dwords;
+
+ uint32_t lm_leakage;
};
#define to_a5xx_gpu(x) container_of(x, struct a5xx_gpu, base)
+int a5xx_power_init(struct msm_gpu *gpu);
+void a5xx_gpmu_ucode_init(struct msm_gpu *gpu);
+
+static inline int spin_usecs(struct msm_gpu *gpu, uint32_t usecs,
+ uint32_t reg, uint32_t mask, uint32_t value)
+{
+ while (usecs--) {
+ udelay(1);
+ if ((gpu_read(gpu, reg) & mask) == value)
+ return 0;
+ cpu_relax();
+ }
+
+ return -ETIMEDOUT;
+}
+
+
#endif /* __A5XX_GPU_H__ */
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_power.c b/drivers/gpu/drm/msm/adreno/a5xx_power.c
new file mode 100644
index 000000000000..6bc1d5cbb4fb
--- /dev/null
+++ b/drivers/gpu/drm/msm/adreno/a5xx_power.c
@@ -0,0 +1,426 @@
+/* Copyright (c) 2016 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/pm_opp.h>
+#include "a5xx_gpu.h"
+
+/*
+ * The GPMU data block is a block of shared registers that can be used to
+ * communicate back and forth. These "registers" are by convention with the GPMU
+ * firwmare and not bound to any specific hardware design
+ */
+
+#define AGC_INIT_BASE REG_A5XX_GPMU_DATA_RAM_BASE
+#define AGC_INIT_MSG_MAGIC (AGC_INIT_BASE + 5)
+#define AGC_MSG_BASE (AGC_INIT_BASE + 7)
+
+#define AGC_MSG_STATE (AGC_MSG_BASE + 0)
+#define AGC_MSG_COMMAND (AGC_MSG_BASE + 1)
+#define AGC_MSG_PAYLOAD_SIZE (AGC_MSG_BASE + 3)
+#define AGC_MSG_PAYLOAD(_o) ((AGC_MSG_BASE + 5) + (_o))
+
+#define AGC_POWER_CONFIG_PRODUCTION_ID 1
+#define AGC_INIT_MSG_VALUE 0xBABEFACE
+
+static struct {
+ uint32_t reg;
+ uint32_t value;
+} a5xx_sequence_regs[] = {
+ { 0xB9A1, 0x00010303 },
+ { 0xB9A2, 0x13000000 },
+ { 0xB9A3, 0x00460020 },
+ { 0xB9A4, 0x10000000 },
+ { 0xB9A5, 0x040A1707 },
+ { 0xB9A6, 0x00010000 },
+ { 0xB9A7, 0x0E000904 },
+ { 0xB9A8, 0x10000000 },
+ { 0xB9A9, 0x01165000 },
+ { 0xB9AA, 0x000E0002 },
+ { 0xB9AB, 0x03884141 },
+ { 0xB9AC, 0x10000840 },
+ { 0xB9AD, 0x572A5000 },
+ { 0xB9AE, 0x00000003 },
+ { 0xB9AF, 0x00000000 },
+ { 0xB9B0, 0x10000000 },
+ { 0xB828, 0x6C204010 },
+ { 0xB829, 0x6C204011 },
+ { 0xB82A, 0x6C204012 },
+ { 0xB82B, 0x6C204013 },
+ { 0xB82C, 0x6C204014 },
+ { 0xB90F, 0x00000004 },
+ { 0xB910, 0x00000002 },
+ { 0xB911, 0x00000002 },
+ { 0xB912, 0x00000002 },
+ { 0xB913, 0x00000002 },
+ { 0xB92F, 0x00000004 },
+ { 0xB930, 0x00000005 },
+ { 0xB931, 0x00000005 },
+ { 0xB932, 0x00000005 },
+ { 0xB933, 0x00000005 },
+ { 0xB96F, 0x00000001 },
+ { 0xB970, 0x00000003 },
+ { 0xB94F, 0x00000004 },
+ { 0xB950, 0x0000000B },
+ { 0xB951, 0x0000000B },
+ { 0xB952, 0x0000000B },
+ { 0xB953, 0x0000000B },
+ { 0xB907, 0x00000019 },
+ { 0xB927, 0x00000019 },
+ { 0xB947, 0x00000019 },
+ { 0xB967, 0x00000019 },
+ { 0xB987, 0x00000019 },
+ { 0xB906, 0x00220001 },
+ { 0xB926, 0x00220001 },
+ { 0xB946, 0x00220001 },
+ { 0xB966, 0x00220001 },
+ { 0xB986, 0x00300000 },
+ { 0xAC40, 0x0340FF41 },
+ { 0xAC41, 0x03BEFED0 },
+ { 0xAC42, 0x00331FED },
+ { 0xAC43, 0x021FFDD3 },
+ { 0xAC44, 0x5555AAAA },
+ { 0xAC45, 0x5555AAAA },
+ { 0xB9BA, 0x00000008 },
+};
+
+/*
+ * Get the actual voltage value for the operating point at the specified
+ * frequency
+ */
+static inline uint32_t _get_mvolts(struct msm_gpu *gpu, uint32_t freq)
+{
+ struct drm_device *dev = gpu->dev;
+ struct msm_drm_private *priv = dev->dev_private;
+ struct platform_device *pdev = priv->gpu_pdev;
+ struct dev_pm_opp *opp;
+
+ opp = dev_pm_opp_find_freq_exact(&pdev->dev, freq, true);
+
+ return (!IS_ERR(opp)) ? dev_pm_opp_get_voltage(opp) / 1000 : 0;
+}
+
+/* Setup thermal limit management */
+static void a5xx_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);
+ uint32_t tsens = 0;
+ uint32_t lm_limit = 6000;
+ uint32_t max_power = 0;
+ unsigned int i;
+
+ /* Write the block of sequence registers */
+ for (i = 0; i < ARRAY_SIZE(a5xx_sequence_regs); i++)
+ gpu_write(gpu, a5xx_sequence_regs[i].reg,
+ a5xx_sequence_regs[i].value);
+
+ of_property_read_u32(GPU_OF_NODE(gpu), "qcom,gpmu-tsens", &tsens);
+
+ gpu_write(gpu, REG_A5XX_GPMU_TEMP_SENSOR_ID, tsens);
+ gpu_write(gpu, REG_A5XX_GPMU_DELTA_TEMP_THRESHOLD, 0x01);
+ gpu_write(gpu, REG_A5XX_GPMU_TEMP_SENSOR_CONFIG, 0x01);
+
+ /* Until we get clock scaling 0 is always the active power level */
+ gpu_write(gpu, REG_A5XX_GPMU_GPMU_VOLTAGE, 0x80000000 | 0);
+
+ gpu_write(gpu, REG_A5XX_GPMU_BASE_LEAKAGE, a5xx_gpu->lm_leakage);
+
+ of_property_read_u32(GPU_OF_NODE(gpu), "qcom,lm-limit", &lm_limit);
+
+ gpu_write(gpu, REG_A5XX_GPMU_GPMU_PWR_THRESHOLD, 0x80000000 | lm_limit);
+
+ gpu_write(gpu, REG_A5XX_GPMU_BEC_ENABLE, 0x10001FFF);
+ gpu_write(gpu, REG_A5XX_GDPM_CONFIG1, 0x00201FF1);
+
+ /* Write the voltage table */
+
+ /* Get the max-power from the device tree */
+ of_property_read_u32(GPU_OF_NODE(gpu), "qcom,lm-max-power", &max_power);
+
+ gpu_write(gpu, REG_A5XX_GPMU_BEC_ENABLE, 0x10001FFF);
+ gpu_write(gpu, REG_A5XX_GDPM_CONFIG1, 0x201FF1);
+
+ gpu_write(gpu, AGC_MSG_STATE, 1);
+ gpu_write(gpu, AGC_MSG_COMMAND, AGC_POWER_CONFIG_PRODUCTION_ID);
+
+ /*
+ * For now just write the one voltage level - we will do more when we
+ * can do scaling
+ */
+ gpu_write(gpu, AGC_MSG_PAYLOAD(0), max_power);
+ 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_SIZE, 4 * sizeof(uint32_t));
+ 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)
+{
+ gpu_write(gpu, REG_A5XX_GPMU_PWR_COL_INTER_FRAME_CTRL, 0x7F);
+ gpu_write(gpu, REG_A5XX_GPMU_PWR_COL_BINNING_CTRL, 0);
+ gpu_write(gpu, REG_A5XX_GPMU_PWR_COL_INTER_FRAME_HYST, 0xA0080);
+ gpu_write(gpu, REG_A5XX_GPMU_PWR_COL_STAGGER_DELAY, 0x600040);
+}
+
+/* Enable the GPMU microcontroller */
+static int a5xx_gpmu_init(struct msm_gpu *gpu)
+{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+ struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu);
+ struct msm_ringbuffer *ring = gpu->rb;
+
+ if (!a5xx_gpu->gpmu_dwords)
+ return 0;
+
+ /* Turn off protected mode for this operation */
+ OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1);
+ OUT_RING(ring, 0);
+
+ /* Kick off the IB to load the GPMU microcode */
+ OUT_PKT7(ring, CP_INDIRECT_BUFFER_PFE, 3);
+ OUT_RING(ring, lower_32_bits(a5xx_gpu->gpmu_iova));
+ OUT_RING(ring, upper_32_bits(a5xx_gpu->gpmu_iova));
+ OUT_RING(ring, a5xx_gpu->gpmu_dwords);
+
+ /* Turn back on protected mode */
+ OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1);
+ OUT_RING(ring, 1);
+
+ gpu->funcs->flush(gpu);
+
+ if (!gpu->funcs->idle(gpu)) {
+ DRM_ERROR("%s: Unable to load GPMU firmware. GPMU will not be active\n",
+ gpu->name);
+ return -EINVAL;
+ }
+
+ gpu_write(gpu, REG_A5XX_GPMU_WFI_CONFIG, 0x4014);
+
+ /* Kick off the GPMU */
+ gpu_write(gpu, REG_A5XX_GPMU_CM3_SYSRESET, 0x0);
+
+ /*
+ * Wait for the GPMU to respond. It isn't fatal if it doesn't, we just
+ * won't have advanced power collapse.
+ */
+ if (spin_usecs(gpu, 25, REG_A5XX_GPMU_GENERAL_0, 0xFFFFFFFF,
+ 0xBABEFACE))
+ DRM_ERROR("%s: GPMU firmware initialization timed out\n",
+ gpu->name);
+
+ return 0;
+}
+
+/* Enable limits management */
+static void a5xx_lm_enable(struct msm_gpu *gpu)
+{
+ 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);
+ gpu_write(gpu, REG_A5XX_GPMU_TEMP_THRESHOLD_INTR_EN_MASK, 0x50000);
+ gpu_write(gpu, REG_A5XX_GPMU_THROTTLE_UNMASK_FORCE_CTRL, 0x30000);
+
+ gpu_write(gpu, REG_A5XX_GPMU_CLOCK_THROTTLE_CTRL, 0x011);
+}
+
+int a5xx_power_init(struct msm_gpu *gpu)
+{
+ int ret;
+
+ /* Set up the limits management */
+ a5xx_lm_setup(gpu);
+
+ /* Set up SP/TP power collpase */
+ a5xx_pc_init(gpu);
+
+ /* Start the GPMU */
+ ret = a5xx_gpmu_init(gpu);
+ if (ret)
+ return ret;
+
+ /* Start the limits management */
+ a5xx_lm_enable(gpu);
+
+ return 0;
+}
+
+static int _read_header(unsigned int *data, uint32_t fwsize,
+ unsigned int *major, unsigned int *minor)
+{
+ uint32_t size;
+ unsigned int i;
+
+ /* First dword of the header is the header size */
+ if (fwsize < 4)
+ return -EINVAL;
+
+ size = data[0];
+
+ /* Make sure the header isn't too big and is a multiple of two */
+ if ((size % 2) || (size > 10) || size > (fwsize >> 2))
+ return -EINVAL;
+
+ /* Read the values in pairs */
+ for (i = 1; i < size; i += 2) {
+ switch (data[i]) {
+ case 1:
+ *major = data[i + 1];
+ break;
+ case 2:
+ *minor = data[i + 1];
+ break;
+ default:
+ /* Invalid values are non fatal */
+ break;
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * Make sure cur_major and cur_minor are greater than or equal to the minimum
+ * allowable major/minor
+ */
+static inline bool _check_gpmu_version(uint32_t cur_major, uint32_t cur_minor,
+ uint32_t min_major, uint32_t min_minor)
+{
+ return ((cur_major > min_major) ||
+ ((cur_major == min_major) && (cur_minor >= min_minor)));
+}
+
+void a5xx_gpmu_ucode_init(struct msm_gpu *gpu)
+{
+ struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
+ struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu);
+ struct drm_device *drm = gpu->dev;
+ const char *name;
+ const struct firmware *fw;
+ uint32_t version[2] = { 0, 0 };
+ uint32_t dwords = 0, offset = 0;
+ uint32_t major = 0, minor = 0, bosize;
+ unsigned int *data, *ptr, *cmds;
+ unsigned int cmds_size;
+
+ if (a5xx_gpu->gpmu_bo)
+ return;
+
+ /*
+ * Read the firmware name from the device tree - if it doesn't exist
+ * then don't initialize the GPMU for this target
+ */
+ if (of_property_read_string(GPU_OF_NODE(gpu), "qcom,gpmu-firmware",
+ &name))
+ return;
+
+ /*
+ * The version isn't mandatory, but if it exists, we need to enforce
+ * that the version of the GPMU firmware matches or is newer than the
+ * value
+ */
+ of_property_read_u32_array(GPU_OF_NODE(gpu), "qcom,gpmu-version",
+ version, 2);
+
+ /* Get the firmware */
+ if (request_firmware(&fw, name, drm->dev)) {
+ DRM_ERROR("%s: Could not get GPMU firmware. GPMU will not be active\n",
+ gpu->name);
+ return;
+ }
+
+ data = (unsigned int *) fw->data;
+
+ /*
+ * The first dword is the size of the remaining data in dwords. Use it
+ * as a checksum of sorts and make sure it matches the actual size of
+ * the firmware that we read
+ */
+
+ if (fw->size < 8 || (data[0] < 2) || (data[0] >= (fw->size >> 2)))
+ goto out;
+
+ /* The second dword is an ID - look for 2 (GPMU_FIRMWARE_ID) */
+ if (data[1] != 2)
+ goto out;
+
+ /* Read the header and get the major/minor of the read firmware */
+ if (_read_header(&data[2], fw->size - 8, &major, &minor))
+ goto out;
+
+ if (!_check_gpmu_version(major, minor, version[0], version[1])) {
+ DRM_ERROR("%s: Loaded GPMU version %d.%d is too old\n",
+ gpu->name, major, minor);
+ goto out;
+ }
+
+ cmds = data + data[2] + 3;
+ cmds_size = data[0] - data[2] - 2;
+
+ /*
+ * A single type4 opcode can only have so many values attached so
+ * add enough opcodes to load the all the commands
+ */
+ bosize = (cmds_size + (cmds_size / TYPE4_MAX_PAYLOAD) + 1) << 2;
+
+ mutex_lock(&drm->struct_mutex);
+ a5xx_gpu->gpmu_bo = msm_gem_new(drm, bosize, MSM_BO_UNCACHED);
+ mutex_unlock(&drm->struct_mutex);
+
+ if (IS_ERR(a5xx_gpu->gpmu_bo))
+ goto err;
+
+ if (msm_gem_get_iova(a5xx_gpu->gpmu_bo, gpu->aspace,
+ &a5xx_gpu->gpmu_iova))
+ goto err;
+
+ ptr = msm_gem_vaddr(a5xx_gpu->gpmu_bo);
+ if (!ptr)
+ goto err;
+
+ while (cmds_size > 0) {
+ int i;
+ uint32_t _size = cmds_size > TYPE4_MAX_PAYLOAD ?
+ TYPE4_MAX_PAYLOAD : cmds_size;
+
+ ptr[dwords++] = PKT4(REG_A5XX_GPMU_INST_RAM_BASE + offset,
+ _size);
+
+ for (i = 0; i < _size; i++)
+ ptr[dwords++] = *cmds++;
+
+ offset += _size;
+ cmds_size -= _size;
+ }
+
+ a5xx_gpu->gpmu_dwords = dwords;
+
+ goto out;
+
+err:
+ if (a5xx_gpu->gpmu_iova)
+ msm_gem_put_iova(a5xx_gpu->gpmu_bo, gpu->aspace);
+ if (a5xx_gpu->gpmu_bo)
+ drm_gem_object_unreference_unlocked(a5xx_gpu->gpmu_bo);
+
+ a5xx_gpu->gpmu_bo = NULL;
+ a5xx_gpu->gpmu_iova = 0;
+ a5xx_gpu->gpmu_dwords = 0;
+
+out:
+ /* No need to keep that firmware laying around anymore */
+ release_firmware(fw);
+}
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 190e864a2cf9..a3073ef38795 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -148,6 +148,9 @@ struct adreno_platform_config {
__ret; \
})
+#define GPU_OF_NODE(_g) \
+ (((struct msm_drm_private *) \
+ ((_g)->dev->dev_private))->gpu_pdev->dev.of_node)
static inline bool adreno_is_a3xx(struct adreno_gpu *gpu)
{