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This commit is contained in:
Andy Ritger
2022-11-22 10:04:21 -08:00
parent fe0728787f
commit c700e8f91c
34 changed files with 368 additions and 108 deletions
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40
kernel-open/nvidia/nv-mmap.c
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@@ -133,10 +133,10 @@ nvidia_vma_access(
pageOffset = (addr & ~PAGE_MASK);
if (length < 0)
{
return -EINVAL;
}
if (!mmap_context->valid)
@@ -217,8 +217,19 @@ static vm_fault_t nvidia_fault(
NvU64 page;
NvU64 num_pages = NV_VMA_SIZE(vma) >> PAGE_SHIFT;
NvU64 pfn_start =
(nvlfp->mmap_context.mmap_start >> PAGE_SHIFT) + vma->vm_pgoff;
NvU64 pfn_start = (nvlfp->mmap_context.mmap_start >> PAGE_SHIFT);
if (vma->vm_pgoff != 0)
{
return VM_FAULT_SIGBUS;
}
// Mapping revocation is only supported for GPU mappings.
if (NV_IS_CTL_DEVICE(nv))
@@ -490,6 +501,13 @@ int nvidia_mmap_helper(
return -EINVAL;
}
if (vma->vm_pgoff != 0)
{
return -EINVAL;
}
NV_PRINT_VMA(NV_DBG_MEMINFO, vma);
status = nv_check_gpu_state(nv);
@@ -517,11 +535,11 @@ int nvidia_mmap_helper(
NvU64 access_len = mmap_context->access_size;
// validate the size
if (NV_VMA_SIZE(vma) != mmap_length)
{
return -ENXIO;
}
if (IS_REG_OFFSET(nv, access_start, access_len))
{