Am 30.04.19 um 13:12 schrieb Sahu, Satyajit:
On 4/30/2019 4:29 PM, Christian König wrote:
[CAUTION: External Email]
Am 30.04.19 um 12:51 schrieb Sahu, Satyajit:
Query the max uvd handles and used uvd handles.
NAK, please use the generic amdgpu_query_info() function for this.
Regards,
Christian.
Currently amdgpu_query_info does not provide an option to specify the
hw_ip_type. For AMDGPU_INFO_NUM_HANDLES the hw_ip_type needs to be
AMDGPU_HW_IP_UVD, otherwise the kernel returns error.
Ok, that makes sense.
But please still add a generic query function which takes query and
hw_ip_type instead of hard coding those values.
BTW: What do you need this for? The number returned is pretty useless on
newer hardware.
Regards,
Christian.
Regards,
Satyajit
Signed-off-by: Satyajit Sahu <satyajit.sahu@xxxxxxx>
---
amdgpu/amdgpu.h | 14 ++++++++++++++
amdgpu/amdgpu_gpu_info.c | 15 +++++++++++++++
2 files changed, 29 insertions(+)
diff --git a/amdgpu/amdgpu.h b/amdgpu/amdgpu.h
index c44a495a..407b5fae 100644
--- a/amdgpu/amdgpu.h
+++ b/amdgpu/amdgpu.h
@@ -1174,6 +1174,20 @@ int amdgpu_query_gpu_info(amdgpu_device_handle
dev,
int amdgpu_query_info(amdgpu_device_handle dev, unsigned info_id,
unsigned size, void *value);
+/**
+ * Query uvd handles info.
+ *
+ *
+ * \param dev - \c [in] Device handle. See
#amdgpu_device_initialize()
+ * \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_uvd_handles(amdgpu_device_handle dev,
+ unsigned size, void *value);
/**
* Query hardware or driver information.
*
diff --git a/amdgpu/amdgpu_gpu_info.c b/amdgpu/amdgpu_gpu_info.c
index 777087f2..253c4da7 100644
--- a/amdgpu/amdgpu_gpu_info.c
+++ b/amdgpu/amdgpu_gpu_info.c
@@ -44,6 +44,21 @@ drm_public int
amdgpu_query_info(amdgpu_device_handle dev, unsigned info_id,
sizeof(struct drm_amdgpu_info));
}
+drm_public int amdgpu_query_uvd_handles(amdgpu_device_handle dev,
+ 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_NUM_HANDLES;
+ request.query_hw_ip.type = AMDGPU_HW_IP_UVD;
+
+ return drmCommandWrite(dev->fd, DRM_AMDGPU_INFO, &request,
+ sizeof(struct drm_amdgpu_info));
+}
+
drm_public int amdgpu_query_crtc_from_id(amdgpu_device_handle dev,
unsigned id,
int32_t *result)
{
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