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amdgpu: allow to query GPU sensor related information 

This exposes amdgpu_query_sensor_info().

v2: - add amdgpu_query_sensor_info() to the symbols list

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
main
Samuel Pitoiset 2017-04-04 16:34:56 +02:00
parent 1142f9b30f
commit 047aba1697
3 changed files with 34 additions and 0 deletions
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1
amdgpu/amdgpu-symbol-check
View File

@ -46,6 +46,7 @@ amdgpu_query_heap_info
amdgpu_query_hw_ip_count
amdgpu_query_hw_ip_info
amdgpu_query_info
amdgpu_query_sensor_info
amdgpu_read_mm_registers
amdgpu_va_range_alloc
amdgpu_va_range_free

18
amdgpu/amdgpu.h
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@ -1058,6 +1058,24 @@ int amdgpu_query_info(amdgpu_device_handle dev, unsigned info_id,
int amdgpu_query_gds_info(amdgpu_device_handle dev,
struct amdgpu_gds_resource_info *gds_info);
/**
* Query information about sensor.
*
* The return size is query-specific and depends on the "sensor_type"
* parameter. No more than "size" bytes is returned.
*
* \param dev - \c [in] Device handle. See #amdgpu_device_initialize()
* \param sensor_type - \c [in] AMDGPU_INFO_SENSOR_*
* \param size - \c [in] Size of the returned value.
* \param value - \c [out] Pointer to the return value.
*
* \return 0 on success\n
* <0 - Negative POSIX Error code
*
*/
int amdgpu_query_sensor_info(amdgpu_device_handle dev, unsigned sensor_type,
unsigned size, void *value);
/**
* Read a set of consecutive memory-mapped registers.
* Not all registers are allowed to be read by userspace.

15
amdgpu/amdgpu_gpu_info.c
View File

@ -318,3 +318,18 @@ int amdgpu_query_gds_info(amdgpu_device_handle dev,
return 0;
}
int amdgpu_query_sensor_info(amdgpu_device_handle dev, unsigned sensor_type,
unsigned size, void *value)
{
struct drm_amdgpu_info request;
memset(&request, 0, sizeof(request));
request.return_pointer = (uintptr_t)value;
request.return_size = size;
request.query = AMDGPU_INFO_SENSOR;
request.sensor_info.type = sensor_type;
return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
sizeof(struct drm_amdgpu_info));
}