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msm: kgsl: Add sysfs node to enable GMU log streaming

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GMU log entries are not streamed out to the host by default.
The log_stream_enable sysfs node allows that.

Change-Id: I8e532cbb059f98652d2bf72842245625549002f1
Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>
This commit is contained in:
Sushmita Susheelendra 2020-10-09 13:26:02 -06:00
commit db97984e20
5 changed files with 63 additions and 3 deletions
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2
drivers/gpu/msm/adreno_a6xx_gmu.h
View file

@ -205,6 +205,8 @@ struct a6xx_gmu_device {
void __iomem *rdpm_cx_virt;
/** @rdpm_mx_virt: Pointer where the RDPM MX block is mapped */
void __iomem *rdpm_mx_virt;
/** @log_stream_enable: GMU log streaming enable */
bool log_stream_enable;
};
/* Helper function to get to a6xx gmu device from adreno device */

21
drivers/gpu/msm/adreno_a6xx_hfi.c
View file

@ -439,6 +439,27 @@ int a6xx_hfi_send_feature_ctrl(struct adreno_device *adreno_dev,
return ret;
}
int a6xx_hfi_send_set_value(struct adreno_device *adreno_dev,
u32 type, u32 subtype, u32 data)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
struct hfi_set_value_cmd cmd = {
.type = type,
.subtype = subtype,
.data = data,
};
int ret;
CMD_MSG_HDR(cmd, H2F_MSG_SET_VALUE);
ret = a6xx_hfi_send_generic_req(adreno_dev, &cmd);
if (ret)
dev_err(&gmu->pdev->dev,
"Unable to set HFI Value %d, %d to %d, error = %d\n",
type, subtype, data, ret);
return ret;
}
static int a6xx_hfi_send_dcvstbl_v1(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);

13
drivers/gpu/msm/adreno_a6xx_hfi.h
View file

@ -78,6 +78,7 @@
#define HFI_VALUE_LOG_EVENT_OFF 113
#define HFI_VALUE_DCVS_OBJ 114
#define HFI_VALUE_LM_CS0 115
#define HFI_VALUE_LOG_STREAM_ENABLE 119
#define HFI_VALUE_PREEMPT_COUNT 120
#define HFI_VALUE_GLOBAL_TOKEN 0xFFFFFFFF
@ -664,6 +665,18 @@ int a6xx_receive_ack_cmd(struct a6xx_gmu_device *gmu, void *rcvd,
int a6xx_hfi_send_feature_ctrl(struct adreno_device *adreno_dev,
u32 feature, u32 enable, u32 data);
/**
* a6xx_hfi_send_set_value - Send gmu set_values via hfi
* @adreno_dev: Pointer to the adreno device
* @type: GMU set_value type
* @subtype: GMU set_value subtype
* @data: Value to set
*
* Return: 0 on success or negative error on failure
*/
int a6xx_hfi_send_set_value(struct adreno_device *adreno_dev,
u32 type, u32 subtype, u32 data);
/**
* a6xx_hfi_send_core_fw_start - Send the core fw start hfi
* @adreno_dev: Pointer to the adreno device

4
drivers/gpu/msm/adreno_a6xx_hwsched_hfi.c
View file

@ -807,6 +807,10 @@ int a6xx_hwsched_hfi_start(struct adreno_device *adreno_dev)
if (ret)
goto err;
if (gmu->log_stream_enable)
a6xx_hfi_send_set_value(adreno_dev,
HFI_VALUE_LOG_STREAM_ENABLE, 0, 1);
ret = a6xx_hfi_send_core_fw_start(adreno_dev);
if (ret)
goto err;

26
drivers/gpu/msm/adreno_hwsched.c
View file

@ -1070,18 +1070,38 @@ static unsigned int _preempt_count_show(struct adreno_device *adreno_dev)
return count < 0 ? 0 : count;
}
static int _gmu_log_stream_enable_store(struct adreno_device *adreno_dev,
bool val)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
if (gmu->log_stream_enable == val)
return 0;
return adreno_power_cycle_bool(adreno_dev, &gmu->log_stream_enable, val);
}
static bool _gmu_log_stream_enable_show(struct adreno_device *adreno_dev)
{
struct a6xx_gmu_device *gmu = to_a6xx_gmu(adreno_dev);
return gmu->log_stream_enable;
}
static ADRENO_SYSFS_BOOL(preemption);
static ADRENO_SYSFS_U32(preempt_level);
static ADRENO_SYSFS_BOOL(usesgmem);
static ADRENO_SYSFS_BOOL(skipsaverestore);
static ADRENO_SYSFS_RO_U32(preempt_count);
static ADRENO_SYSFS_BOOL(gmu_log_stream_enable);
static const struct attribute *_preempt_attr_list[] = {
static const struct attribute *_hwsched_attr_list[] = {
&adreno_attr_preemption.attr.attr,
&adreno_attr_preempt_level.attr.attr,
&adreno_attr_usesgmem.attr.attr,
&adreno_attr_skipsaverestore.attr.attr,
&adreno_attr_preempt_count.attr.attr,
&adreno_attr_gmu_log_stream_enable.attr.attr,
NULL,
};
@ -1092,7 +1112,7 @@ void adreno_hwsched_dispatcher_close(struct adreno_device *adreno_dev)
kmem_cache_destroy(jobs_cache);
kmem_cache_destroy(obj_cache);
sysfs_remove_files(&device->dev->kobj, _preempt_attr_list);
sysfs_remove_files(&device->dev->kobj, _hwsched_attr_list);
}
static void adreno_hwsched_init_replay(struct adreno_hwsched *hwsched)
@ -1336,7 +1356,7 @@ void adreno_hwsched_init(struct adreno_device *adreno_dev)
init_llist_head(&hwsched->requeue[i]);
}
sysfs_create_files(&device->dev->kobj, _preempt_attr_list);
sysfs_create_files(&device->dev->kobj, _hwsched_attr_list);
}
void adreno_hwsched_mark_drawobj(struct adreno_device *adreno_dev,