nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-22 09:12:24 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: Enable GPU MMIO path

Browse Source 
This is adding support for work submit through
GPU mmio for gpu-next.

Bug 3938139

Change-Id: I69c6b2865e5264e485d8ecec4239c759abdd63d5
Signed-off-by: Dinesh T <dt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2903841
Tested-by: Martin Radev <mradev@nvidia.com>
Reviewed-by: Martin Radev <mradev@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Dinesh T
2023-05-13 09:38:35 +00:00
committed by mobile promotions
parent 7dbd29ceb6
commit c8ceef2d08
9 changed files with 290 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/nvgpu/common/mm/vm.c
View File

@@ -813,6 +813,7 @@ int nvgpu_vm_do_init(struct mm_gk20a *mm,
vm->mapped_buffers = NULL;
nvgpu_mutex_init(&vm->syncpt_ro_map_lock);
nvgpu_mutex_init(&vm->gpu_mmio_va_map_lock);
nvgpu_mutex_init(&vm->update_gmmu_lock);
nvgpu_ref_init(&vm->ref);
@@ -838,6 +839,7 @@ int nvgpu_vm_do_init(struct mm_gk20a *mm,
clean_up_gmmu_lock:
nvgpu_mutex_destroy(&vm->update_gmmu_lock);
nvgpu_mutex_destroy(&vm->syncpt_ro_map_lock);
nvgpu_mutex_destroy(&vm->gpu_mmio_va_map_lock);
#endif
clean_up_gpu_vm:
if (g->ops.mm.vm_as_free_share != NULL) {
@@ -943,6 +945,16 @@ static void nvgpu_vm_remove(struct vm_gk20a *vm)
vm->syncpt_ro_map_gpu_va);
}
nvgpu_mutex_acquire(&vm->gpu_mmio_va_map_lock);
if (vm->gpummio_va != 0U) {
nvgpu_gmmu_unmap_va(vm, vm->gpummio_va,
vm->gpummio_va_mapsize);
nvgpu_dma_free(g, &vm->gpummio_mem);
vm->gpummio_va = 0U;
vm->gpummio_va_mapsize = 0U;
}
nvgpu_mutex_release(&vm->gpu_mmio_va_map_lock);
nvgpu_mutex_acquire(&vm->update_gmmu_lock);
nvgpu_rbtree_enum_start(0, &node, vm->mapped_buffers);
@@ -988,6 +1000,7 @@ static void nvgpu_vm_remove(struct vm_gk20a *vm)
nvgpu_mutex_destroy(&vm->update_gmmu_lock);
nvgpu_mutex_destroy(&vm->syncpt_ro_map_lock);
nvgpu_mutex_destroy(&vm->gpu_mmio_va_map_lock);
nvgpu_kfree(g, vm);
}