mirror of
https://github.com/NVIDIA/open-gpu-kernel-modules.git
synced 2026-01-26 19:19:47 +00:00
committed by
Gaurav Juvekar
parent
3084c04453
commit
74ee05e160
@@ -72,7 +72,7 @@ EXTRA_CFLAGS += -I$(src)/common/inc
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EXTRA_CFLAGS += -I$(src)
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EXTRA_CFLAGS += -Wall $(DEFINES) $(INCLUDES) -Wno-cast-qual -Wno-format-extra-args
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EXTRA_CFLAGS += -D__KERNEL__ -DMODULE -DNVRM
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EXTRA_CFLAGS += -DNV_VERSION_STRING=\"555.42.02\"
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EXTRA_CFLAGS += -DNV_VERSION_STRING=\"555.52.04\"
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ifneq ($(SYSSRCHOST1X),)
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EXTRA_CFLAGS += -I$(SYSSRCHOST1X)
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@@ -5252,25 +5252,23 @@ compile_test() {
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compile_check_conftest "$CODE" "NV_PCI_CLASS_MULTIMEDIA_HD_AUDIO_PRESENT" "" "generic"
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;;
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unsafe_follow_pfn)
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follow_pfn)
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#
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# Determine if unsafe_follow_pfn() is present.
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# Determine if follow_pfn() is present.
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#
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# unsafe_follow_pfn() was added by commit 69bacee7f9ad
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# ("mm: Add unsafe_follow_pfn") in v5.13-rc1.
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#
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# Note: this commit never made it to the linux kernel, so
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# unsafe_follow_pfn() never existed.
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# follow_pfn() was added by commit 3b6748e2dd69
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# ("mm: introduce follow_pfn()") in v2.6.31-rc1, and removed
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# by commit 233eb0bf3b94 ("mm: remove follow_pfn")
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# from linux-next 233eb0bf3b94.
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#
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CODE="
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#include <linux/mm.h>
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void conftest_unsafe_follow_pfn(void) {
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unsafe_follow_pfn();
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void conftest_follow_pfn(void) {
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follow_pfn();
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}"
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compile_check_conftest "$CODE" "NV_UNSAFE_FOLLOW_PFN_PRESENT" "" "functions"
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compile_check_conftest "$CODE" "NV_FOLLOW_PFN_PRESENT" "" "functions"
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;;
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drm_plane_atomic_check_has_atomic_state_arg)
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#
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# Determine if drm_plane_helper_funcs::atomic_check takes 'state'
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@@ -161,7 +161,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_enable_atomic_ops_to_root
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += vga_tryget
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += cc_platform_has
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += seq_read_iter
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += unsafe_follow_pfn
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += follow_pfn
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_gem_object_get
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_gem_object_put_unlocked
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NV_CONFTEST_FUNCTION_COMPILE_TESTS += add_memory_driver_managed
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@@ -231,6 +231,7 @@ NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_memory_block_size_b
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NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tegra_platform_is_fpga
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NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_tegra_platform_is_sim
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NV_CONFTEST_SYMBOL_COMPILE_TESTS += crypto
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NV_CONFTEST_SYMBOL_COMPILE_TESTS += is_export_symbol_present_follow_pte
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NV_CONFTEST_TYPE_COMPILE_TESTS += dma_ops
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NV_CONFTEST_TYPE_COMPILE_TESTS += swiotlb_dma_ops
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@@ -36,10 +36,28 @@ static inline int nv_follow_pfn(struct vm_area_struct *vma,
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unsigned long address,
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unsigned long *pfn)
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{
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#if defined(NV_UNSAFE_FOLLOW_PFN_PRESENT)
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return unsafe_follow_pfn(vma, address, pfn);
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#else
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#if defined(NV_FOLLOW_PFN_PRESENT)
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return follow_pfn(vma, address, pfn);
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#else
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#if NV_IS_EXPORT_SYMBOL_PRESENT_follow_pte
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int status = 0;
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spinlock_t *ptl;
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pte_t *ptep;
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if (!(vma->vm_flags & (VM_IO | VM_PFNMAP)))
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return status;
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status = follow_pte(vma, address, &ptep, &ptl);
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if (status)
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return status;
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*pfn = pte_pfn(ptep_get(ptep));
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// The lock is acquired inside follow_pte()
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pte_unmap_unlock(ptep, ptl);
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return 0;
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#else // NV_IS_EXPORT_SYMBOL_PRESENT_follow_pte
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return -1;
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#endif // NV_IS_EXPORT_SYMBOL_PRESENT_follow_pte
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#endif
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}
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