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530.30.02

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This commit is contained in:
Andy Ritger
2023-02-28 11:12:44 -08:00
parent e598191e8e
commit 4397463e73
928 changed files with 124728 additions and 88525 deletions
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13
kernel-open/nvidia-uvm/uvm_mmu.h
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@@ -36,7 +36,9 @@
#define UVM_PAGE_SIZE_AGNOSTIC 0
// Memory layout of UVM's kernel VA space.
// The following memory regions are not to scale.
// The following memory regions are not to scale. The memory layout is linear,
// i.e., no canonical form address conversion.
//
// Hopper:
// +----------------+ 128PB
// | |
@@ -57,7 +59,7 @@
// | |
// +----------------+ 0 (rm_va_base)
//
// Pascal-Ampere:
// Pascal-Ada:
// +----------------+ 512TB
// | |
// | (not used) |
@@ -592,13 +594,18 @@ static bool uvm_mmu_page_size_supported(uvm_page_tree_t *tree, NvU32 page_size)
static NvU32 uvm_mmu_biggest_page_size_up_to(uvm_page_tree_t *tree, NvU32 max_page_size)
{
NvU32 gpu_page_sizes = tree->hal->page_sizes();
NvU32 smallest_gpu_page_size = gpu_page_sizes & ~(gpu_page_sizes - 1);
NvU32 page_sizes;
NvU32 page_size;
UVM_ASSERT_MSG(is_power_of_2(max_page_size), "0x%x\n", max_page_size);
if (max_page_size < smallest_gpu_page_size)
return 0;
// Calculate the supported page sizes that are not larger than the max
page_sizes = tree->hal->page_sizes() & (max_page_size | (max_page_size - 1));
page_sizes = gpu_page_sizes & (max_page_size | (max_page_size - 1));
// And pick the biggest one of them
page_size = 1 << __fls(page_sizes);