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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

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Pull arm64 fixes from Will Deacon:

 - Fix SPE probe failure when backing auxbuf with high-order pages

 - Fix handling of DMA allocations from outside of the vmalloc area

 - Fix generation of build-id ELF section for vDSO object

 - Disable huge I/O mappings if kernel page table dumping is enabled

 - A few other minor fixes (comments, kconfig etc)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: vdso: Explicitly add build-id option
  arm64/mm: Inhibit huge-vmap with ptdump
  arm64: Print physical address of page table base in show_pte()
  arm64: don't trash config with compat symbol if COMPAT is disabled
  arm64: assembler: Update comment above cond_yield_neon() macro
  drivers/perf: arm_spe: Don't error on high-order pages for aux buf
  arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable
This commit is contained in:
Linus Torvalds
2019-05-22 08:36:16 -07:00
parent 651bae980e 7a0a93c517
commit 54dee40637
7 changed files with 30 additions and 23 deletions
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11
arch/arm64/mm/mmu.c
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@@ -955,13 +955,18 @@ void *__init fixmap_remap_fdt(phys_addr_t dt_phys)
int __init arch_ioremap_pud_supported(void)
{
/* only 4k granule supports level 1 block mappings */
return IS_ENABLED(CONFIG_ARM64_4K_PAGES);
/*
* Only 4k granule supports level 1 block mappings.
* SW table walks can't handle removal of intermediate entries.
*/
return IS_ENABLED(CONFIG_ARM64_4K_PAGES) &&
!IS_ENABLED(CONFIG_ARM64_PTDUMP_DEBUGFS);
}
int __init arch_ioremap_pmd_supported(void)
{
return 1;
/* See arch_ioremap_pud_supported() */
return !IS_ENABLED(CONFIG_ARM64_PTDUMP_DEBUGFS);
}
int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot)