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This commit is contained in:
Maneet Singh
2025-12-18 09:16:33 -08:00
parent a5bfb10e75
commit 2ccbad25e1
51 changed files with 2054 additions and 359 deletions
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11
kernel-open/nvidia-uvm/uvm_migrate_pageable.c
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@@ -43,8 +43,6 @@
#ifdef UVM_MIGRATE_VMA_SUPPORTED
static struct kmem_cache *g_uvm_migrate_vma_state_cache __read_mostly;
static const gfp_t g_migrate_vma_gfp_flags = NV_UVM_GFP_FLAGS | GFP_HIGHUSER_MOVABLE | __GFP_THISNODE;
static uvm_sgt_t *uvm_select_sgt(uvm_processor_id_t src_id, int src_nid, migrate_vma_state_t *state)
@@ -1497,7 +1495,7 @@ NV_STATUS uvm_migrate_pageable(uvm_migrate_args_t *uvm_migrate_args)
uvm_migrate_args->dst_node_id = uvm_gpu_numa_node(gpu);
}
state = nv_kmem_cache_zalloc(g_uvm_migrate_vma_state_cache, NV_UVM_GFP_FLAGS);
state = uvm_kvmalloc_zero(sizeof(migrate_vma_state_t));
if (!state)
return NV_ERR_NO_MEMORY;
@@ -1519,22 +1517,17 @@ NV_STATUS uvm_migrate_pageable(uvm_migrate_args_t *uvm_migrate_args)
out:
uvm_kvfree(state->dma.sgt_cpu);
uvm_kvfree(state->cpu_page_mask);
kmem_cache_free(g_uvm_migrate_vma_state_cache, state);
uvm_kvfree(state);
return status;
}
NV_STATUS uvm_migrate_pageable_init(void)
{
g_uvm_migrate_vma_state_cache = NV_KMEM_CACHE_CREATE("migrate_vma_state_t", migrate_vma_state_t);
if (!g_uvm_migrate_vma_state_cache)
return NV_ERR_NO_MEMORY;
return NV_OK;
}
void uvm_migrate_pageable_exit(void)
{
kmem_cache_destroy_safe(&g_uvm_migrate_vma_state_cache);
}
#endif

8
kernel-open/nvidia-uvm/uvm_pmm_gpu.c
View File

@@ -3360,12 +3360,10 @@ void uvm_pmm_gpu_device_p2p_init(uvm_parent_gpu_t *parent_gpu)
void uvm_pmm_gpu_device_p2p_deinit(uvm_parent_gpu_t *parent_gpu)
{
unsigned long pci_start_pfn = pci_resource_start(parent_gpu->pci_dev,
uvm_device_p2p_static_bar(parent_gpu)) >> PAGE_SHIFT;
struct page *p2p_page;
if (parent_gpu->device_p2p_initialised && !uvm_parent_gpu_is_coherent(parent_gpu)) {
p2p_page = pfn_to_page(pci_start_pfn);
struct page *p2p_page = pfn_to_page(pci_resource_start(parent_gpu->pci_dev,
uvm_device_p2p_static_bar(parent_gpu)) >> PAGE_SHIFT);
devm_memunmap_pages(&parent_gpu->pci_dev->dev, page_pgmap(p2p_page));
}