nvdla: kmd: handle {RELEASE,ALLOC}_QUEUE ioctls

[1] This commit separates the allocation and deallocation
    of mission critical resources away from open() and close()
[2] It is achieved through introduction of NVDLA_IOCTL_{ALLOC,RELEASE}
    IOCTLs.
[3] nvdla_buffer_* APIs introduced to facilitate easier split.

Jira DLA-4175
Bug 3200422
Bug 200628173

Change-Id: I3fb07ecaff69c62ec5eb9e5bea39b07ae1624240
Signed-off-by: Arvind M <am@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2403689
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2412585
GVS: Gerrit_Virtual_Submit
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: Mitch Harwell <mharwell@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/uapi/linux/nvhost_nvdla_ioctl.h b/include/uapi/linux/nvhost_nvdla_ioctl.h
index 3bb1a8183..b203fda63 100644
--- a/include/uapi/linux/nvhost_nvdla_ioctl.h
+++ b/include/uapi/linux/nvhost_nvdla_ioctl.h
@@ -254,8 +254,12 @@ struct nvdla_status_notify {
         _IOWR(NVHOST_NVDLA_IOCTL_MAGIC, 7, struct nvdla_get_q_status_args)
 #define NVDLA_IOCTL_EMU_TASK_SUBMIT \
         _IOWR(NVHOST_NVDLA_IOCTL_MAGIC, 8, struct nvdla_submit_args)
+#define NVDLA_IOCTL_ALLOC_QUEUE \
+        _IO(NVHOST_NVDLA_IOCTL_MAGIC, 9)
+#define NVDLA_IOCTL_RELEASE_QUEUE \
+        _IO(NVHOST_NVDLA_IOCTL_MAGIC, 10)
 #define NVDLA_IOCTL_LAST                \
-                _IOC_NR(NVDLA_IOCTL_EMU_TASK_SUBMIT)
+                _IOC_NR(NVDLA_IOCTL_RELEASE_QUEUE)
 
 #define NVDLA_IOCTL_MAX_ARG_SIZE  \
                 sizeof(struct nvdla_pin_unpin_args)