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gpu: nvgpu: accept small_big_split in vm_init

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Currently, when unified address space is not requested, nvgpu_vm_init
splits user vm at a fixed address of 56G.
Modify nvgpu_vm_init to allow user to specify small big page vm split.

JIRA NVGPU-5302

Change-Id: I6ed33a4dc080f10a723cb9bd486f0d36c0cee0e9
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2428326
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: Sami Kiminki <skiminki@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Vedashree Vidwans
2020-10-14 19:05:47 -07:00
committed by Alex Waterman
parent 7f9ce100f8
commit 00d1e10ff2
20 changed files with 90 additions and 44 deletions
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2
userspace/units/mm/gmmu/page_table/page_table.c
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@@ -355,6 +355,7 @@ static int init_mm(struct unit_module *m, struct gk20a *g)
low_hole,
0ULL,
nvgpu_safe_sub_u64(aperture_size, low_hole),
0ULL,
true,
false,
false,
@@ -978,6 +979,7 @@ static struct vm_gk20a *init_test_req_vm(struct gk20a *g)
return nvgpu_vm_init(g, g->ops.mm.gmmu.get_default_big_page_size(),
low_hole, user_reserved, kernel_reserved,
nvgpu_gmmu_va_small_page_limit(),
big_pages, true, true, "testmem");
}