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gpu: nvgpu: add ioctl to configure implicit ERRBAR

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Add ioctl support to configure implicit ERRBAR by setting/unsetting
NV_PGRAPH_PRI_GPCS_TPCS_SM_SCH_MACRO_SCHED register.

Add gpu characteritics flag: NVGPU_SCHED_EXIT_WAIT_FOR_ERRBAR_SUPPORTED
to allow userspace driver to determine if implicit ERRBAR ioctl is
supported.

Bug: 200782861

Change-Id: I530a4cf73bc5c844e8d73094d3e23949568fe335
Signed-off-by: atanand <atanand@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2718672
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
atanand
2022-05-26 09:34:15 +00:00
committed by mobile promotions
parent faf18009cb
commit eae4593343
15 changed files with 181 additions and 2 deletions
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14
include/uapi/linux/nvgpu.h
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@@ -621,8 +621,20 @@ struct nvgpu_dbg_gpu_va_access_args {
#define NVGPU_DBG_GPU_IOCTL_ACCESS_GPU_VA \
_IOWR(NVGPU_DBG_GPU_IOCTL_MAGIC, 32, struct nvgpu_dbg_gpu_va_access_args)
/* Implicit ERRBAR Mode */
#define NVGPU_DBG_GPU_SCHED_EXIT_WAIT_FOR_ERRBAR_DISABLED 0
#define NVGPU_DBG_GPU_SCHED_EXIT_WAIT_FOR_ERRBAR_ENABLED 1
struct nvgpu_sched_exit_wait_for_errbar_args {
__u32 enable; /* enable 1, disable 0*/
};
#define NVGPU_DBG_GPU_IOCTL_SET_SCHED_EXIT_WAIT_FOR_ERRBAR \
_IOW(NVGPU_DBG_GPU_IOCTL_MAGIC, 33, \
struct nvgpu_sched_exit_wait_for_errbar_args)
#define NVGPU_DBG_GPU_IOCTL_LAST \
_IOC_NR(NVGPU_DBG_GPU_IOCTL_ACCESS_GPU_VA)
_IOC_NR(NVGPU_DBG_GPU_IOCTL_SET_SCHED_EXIT_WAIT_FOR_ERRBAR)
#define NVGPU_DBG_GPU_IOCTL_MAX_ARG_SIZE \
sizeof(struct nvgpu_dbg_gpu_access_fb_memory_args)