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This commit is contained in:
Maneet Singh
2025-12-02 15:32:25 -08:00
parent 2af9f1f0f7
commit a5bfb10e75
954 changed files with 421883 additions and 408177 deletions
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13
kernel-open/common/inc/nv-pgprot.h
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@@ -73,31 +73,22 @@ extern NvBool nvos_is_chipset_io_coherent(void);
#define NV_PGPROT_UNCACHED_DEVICE(old_prot) pgprot_noncached(old_prot)
#if defined(NVCPU_AARCH64)
#define NV_PROT_WRITE_COMBINED_DEVICE (PROT_DEFAULT | PTE_PXN | PTE_UXN | \
PTE_ATTRINDX(MT_DEVICE_nGnRE))
#define NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot) \
__pgprot_modify(old_prot, PTE_ATTRINDX_MASK, NV_PROT_WRITE_COMBINED_DEVICE)
#define NV_PGPROT_WRITE_COMBINED(old_prot) NV_PGPROT_UNCACHED(old_prot)
#define NV_PGPROT_READ_ONLY(old_prot) \
__pgprot_modify(old_prot, 0, PTE_RDONLY)
#elif defined(NVCPU_X86_64)
#define NV_PGPROT_UNCACHED_WEAK(old_prot) pgprot_noncached_weak(old_prot)
#define NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot) \
pgprot_modify_writecombine(old_prot)
#define NV_PGPROT_WRITE_COMBINED(old_prot) \
NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot)
pgprot_modify_writecombine(old_prot)
#define NV_PGPROT_READ_ONLY(old_prot) \
__pgprot(pgprot_val((old_prot)) & ~_PAGE_RW)
#elif defined(NVCPU_RISCV64)
#define NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot) \
#define NV_PGPROT_WRITE_COMBINED(old_prot) \
pgprot_writecombine(old_prot)
/* Don't attempt to mark sysmem pages as write combined on riscv */
#define NV_PGPROT_WRITE_COMBINED(old_prot) old_prot
#define NV_PGPROT_READ_ONLY(old_prot) \
__pgprot(pgprot_val((old_prot)) & ~_PAGE_WRITE)
#else
/* Writecombine is not supported */
#undef NV_PGPROT_WRITE_COMBINED_DEVICE(old_prot)
#undef NV_PGPROT_WRITE_COMBINED(old_prot)
#define NV_PGPROT_READ_ONLY(old_prot)
#endif