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drm/amdkfd: New IOCTL to allocate queue GWS

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Add a new kfd ioctl to allocate queue GWS. Queue
GWS is released on queue destroy.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oak Zeng
2019-05-06 22:11:14 -05:00
committed by Alex Deucher
parent eb82da1dc4
commit 1a058c3376
2 changed files with 46 additions and 1 deletions
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20
include/uapi/linux/kfd_ioctl.h
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@@ -410,6 +410,21 @@ struct kfd_ioctl_unmap_memory_from_gpu_args {
__u32 n_success; /* to/from KFD */
};
/* Allocate GWS for specific queue
*
* @gpu_id: device identifier
* @queue_id: queue's id that GWS is allocated for
* @num_gws: how many GWS to allocate
* @first_gws: index of the first GWS allocated.
* only support contiguous GWS allocation
*/
struct kfd_ioctl_alloc_queue_gws_args {
__u32 gpu_id; /* to KFD */
__u32 queue_id; /* to KFD */
__u32 num_gws; /* to KFD */
__u32 first_gws; /* from KFD */
};
struct kfd_ioctl_get_dmabuf_info_args {
__u64 size; /* from KFD */
__u64 metadata_ptr; /* to KFD */
@@ -529,7 +544,10 @@ enum kfd_mmio_remap {
#define AMDKFD_IOC_IMPORT_DMABUF \
AMDKFD_IOWR(0x1D, struct kfd_ioctl_import_dmabuf_args)
#define AMDKFD_IOC_ALLOC_QUEUE_GWS \
AMDKFD_IOWR(0x1E, struct kfd_ioctl_alloc_queue_gws_args)
#define AMDKFD_COMMAND_START 0x01
#define AMDKFD_COMMAND_END 0x1E
#define AMDKFD_COMMAND_END 0x1F
#endif