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authorOak Zeng <Oak.Zeng@amd.com>2019-05-07 06:11:14 +0300
committerAlex Deucher <alexander.deucher@amd.com>2019-05-28 22:44:31 +0300
commit1a058c3376765ee31d65e28cbbb9d4ff15120056 (patch)
treecbb619dc524ae65c831aaab75d351f4f04788a0b /include/uapi/linux/kfd_ioctl.h
parenteb82da1dc4429c026a165f419f8c76d7bbdcf26f (diff)
downloadlinux-1a058c3376765ee31d65e28cbbb9d4ff15120056.tar.xz
drm/amdkfd: New IOCTL to allocate queue GWS
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>
Diffstat (limited to 'include/uapi/linux/kfd_ioctl.h')
-rw-r--r--include/uapi/linux/kfd_ioctl.h20
1 files changed, 19 insertions, 1 deletions
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 20917c59f39c..070d1bc7e725 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -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