Files
linux-nvgpu/drivers/gpu/nvgpu/hal/mm/mm_gv11b.h
Sagar Kamble 5b55088970 gpu: nvgpu: skip subctx pdb init during as-channel bind
While creating a new channel, ioctls are called in the below sequence:
  1. GPU_IOCTL_OPEN_CHANNEL
  2. AS_IOCTL_BIND_CHANNEL
  3. TSG_IOCTL_BIND_CHANNEL_EX
  4. CHANNEL_ALLOC_GPFIFO_EX
  5. CHANNEL_ALLOC_OBJ_CTX.

subctx pdbs and valid mask are programmed in the channel instance block
in the channel ioctls AS_IOCTL_BIND_CHANNEL & CHANNEL_ALLOC_GPFIFO_EX.

Programming them in the ioctl AS_IOCTL_BIND_CHANNEL is redundant.
Remove related hal g->ops.mm.init_inst_block_for_subctxs.

The hal init_inst_block will program context pdb and big page size.
The hal init_inst_block_core will program context pdb, big page size
and subctx 0 pdb. This is used by h/w units (fecs, pmu, hwpm, bar1,
bar2, sec2, gsp, perfbuf etc.).

For user channels, subctx pdbs are programmed as part of ramfc setup.

Bug 3677982

Change-Id: I6656b002d513404c1fd7c3d349933e80cca7e604
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2680907
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
2022-06-28 23:33:31 -07:00

39 lines
1.5 KiB
C

/*
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#ifndef HAL_MM_MM_GV11B_H
#define HAL_MM_MM_GV11B_H
#include <nvgpu/types.h>
struct nvgpu_mem;
struct vm_gk20a;
void gv11b_mm_init_inst_block(struct nvgpu_mem *inst_block, struct vm_gk20a *vm,
u32 big_page_size);
void gv11b_mm_init_inst_block_core(struct nvgpu_mem *inst_block,
struct vm_gk20a *vm,
u32 big_page_size);
bool gv11b_mm_is_bar1_supported(struct gk20a *g);
#endif