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Merge patch "riscv: Fix compilation error with FAST_GUP and rv32"

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I'm picking this up on top of the broken patch for the merge window, as
the offending patch breaks the rv32 build and was itself a fix so isn't
on for-next.

* b4-shazam-merge:
  riscv: Fix compilation error with FAST_GUP and rv32
  riscv: Fix pte_leaf_size() for NAPOT
  Revert "riscv: mm: support Svnapot in huge vmap"

Link: https://lore.kernel.org/r/20240304080247.387710-1-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Palmer Dabbelt 2024-03-15 09:27:20 -07:00
commit 3b6be8d235
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GPG Key ID: 2E1319F35FBB1889
2 changed files with 7 additions and 60 deletions
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6
arch/riscv/include/asm/pgtable.h
View File

@ -439,6 +439,12 @@ static inline pte_t pte_mkhuge(pte_t pte)
return pte;
}
#ifdef CONFIG_RISCV_ISA_SVNAPOT
#define pte_leaf_size(pte) (pte_napot(pte) ? \
napot_cont_size(napot_cont_order(pte)) :\
PAGE_SIZE)
#endif
#ifdef CONFIG_NUMA_BALANCING
/*
* See the comment in include/asm-generic/pgtable.h

61
arch/riscv/include/asm/vmalloc.h
View File

@ -19,65 +19,6 @@ static inline bool arch_vmap_pmd_supported(pgprot_t prot)
return true;
}
#ifdef CONFIG_RISCV_ISA_SVNAPOT
#include <linux/pgtable.h>
#endif
#define arch_vmap_pte_range_map_size arch_vmap_pte_range_map_size
static inline unsigned long arch_vmap_pte_range_map_size(unsigned long addr, unsigned long end,
u64 pfn, unsigned int max_page_shift)
{
unsigned long map_size = PAGE_SIZE;
unsigned long size, order;
if (!has_svnapot())
return map_size;
for_each_napot_order_rev(order) {
if (napot_cont_shift(order) > max_page_shift)
continue;
size = napot_cont_size(order);
if (end - addr < size)
continue;
if (!IS_ALIGNED(addr, size))
continue;
if (!IS_ALIGNED(PFN_PHYS(pfn), size))
continue;
map_size = size;
break;
}
return map_size;
}
#define arch_vmap_pte_supported_shift arch_vmap_pte_supported_shift
static inline int arch_vmap_pte_supported_shift(unsigned long size)
{
int shift = PAGE_SHIFT;
unsigned long order;
if (!has_svnapot())
return shift;
WARN_ON_ONCE(size >= PMD_SIZE);
for_each_napot_order_rev(order) {
if (napot_cont_size(order) > size)
continue;
if (!IS_ALIGNED(size, napot_cont_size(order)))
continue;
shift = napot_cont_shift(order);
break;
}
return shift;
}
#endif /* CONFIG_RISCV_ISA_SVNAPOT */
#endif /* CONFIG_HAVE_ARCH_HUGE_VMAP */
#endif /* _ASM_RISCV_VMALLOC_H */