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gpu: nvgpu: add NVGPU_SUPPORT_COMPRESSION flag

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Add NVGPU_SUPPORT_COMPRESSION to indicate if compression feature is
supported in nvgpu. If not, set cbc.init, cbc.ctrl and
cbc.alloc_comptags hals to NULL.
Add corresponding GPU characteristics flag and IOCTL mapping to sync
compression support status with nvrm_gpu.

JIRA NVGPU-4666

Change-Id: I2e685688ddac592b3bb918ee70c82ea5524d695a
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2338926
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Vedashree Vidwans
2020-05-04 15:04:42 -07:00
committed by Alex Waterman
parent cfc5bac059
commit ee216bc941
7 changed files with 49 additions and 6 deletions
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2
include/uapi/linux/nvgpu.h
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@@ -173,6 +173,8 @@ struct nvgpu_gpu_zbc_query_table_args {
#define NVGPU_GPU_FLAGS_SUPPORT_SET_CTX_MMU_DEBUG_MODE (1ULL << 32)
/* Fault recovery is enabled */
#define NVGPU_GPU_FLAGS_SUPPORT_FAULT_RECOVERY (1ULL << 33)
/* Compression is enabled */
#define NVGPU_GPU_FLAGS_SUPPORT_COMPRESSION (1ULL << 34)
/* SM LRF ECC is enabled */
#define NVGPU_GPU_FLAGS_ECC_ENABLED_SM_LRF (1ULL << 60)
/* SM SHM ECC is enabled */