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This commit is contained in:
Andy Ritger
2022-10-10 14:59:24 -07:00
parent fe0728787f
commit 90eb10774f
758 changed files with 88383 additions and 26493 deletions
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30
kernel-open/nvidia-uvm/uvm_mmu.c
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@@ -35,15 +35,9 @@
#include "uvm_va_space.h"
// The page tree has 5 levels on Pascal, and the root is never freed by a normal
// 'put' operation which leaves a maximum of 4 levels
#define MAX_OPERATION_DEPTH 4
// The page tree has 6 levels on Hopper+ GPUs, and the root is never freed by a
// normal 'put' operation which leaves a maximum of 5 levels.
#define MAX_OPERATION_DEPTH 5
// Wrappers for push begin handling channel_manager not being there when running
// the page tree unit test
@@ -720,11 +714,7 @@ error:
// default | vidmem || vidmem | false
// default | sysmem || sysmem | false
//
// (1) The fallback to sysmem is always enabled.
// (1) When SEV mode is enabled, the fallback path is disabled.
//
// In SR-IOV heavy the the page tree must be in vidmem, to prevent guest drivers
// from updating GPU page tables without hypervisor knowledge.
@@ -753,12 +743,8 @@ static void page_tree_set_location(uvm_page_tree_t *tree, uvm_aperture_t locatio
if (page_table_aperture == UVM_APERTURE_DEFAULT) {
tree->location = UVM_APERTURE_VID;
tree->location_sys_fallback = true;
// See the comment (1) above.
tree->location_sys_fallback = !g_uvm_global.sev_enabled;
}
else {
tree->location = page_table_aperture;
@@ -1803,11 +1789,7 @@ static void destroy_identity_mapping(uvm_gpu_identity_mapping_t *mapping)
bool uvm_mmu_gpu_needs_static_vidmem_mapping(uvm_gpu_t *gpu)
{
return false;
}
bool uvm_mmu_gpu_needs_dynamic_vidmem_mapping(uvm_gpu_t *gpu)