diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-15 16:47:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-15 16:47:33 -0700 |
| commit | 36d8a3edf8bd504320fca970f8b0633b8226cb58 (patch) | |
| tree | 73cdae79ee48101a689e07289f9e690364baef22 /arch/openrisc | |
| parent | 41410965c3629367cbd0889dc0c8bddfb9e8a2d5 (diff) | |
| parent | 34a0bac084e49324c29e6d0984d24096e02c6314 (diff) | |
Merge tag 'for-linus' of https://github.com/openrisc/linux
Pull OpenRISC updates from Stafford Horne:
"I have relocated to London so not much work from me while I get
settled.
Still, OpenRISC picked up two patches in this window:
- Fix for kernel page table walking from Jann Horn
- MAINTAINER entry cleanup from Palmer Dabbelt"
* tag 'for-linus' of https://github.com/openrisc/linux:
MAINTAINERS: git://github -> https://github.com for openrisc
openrisc: Fix pagewalk usage in arch_dma_{clear, set}_uncached
Diffstat (limited to 'arch/openrisc')
| -rw-r--r-- | arch/openrisc/kernel/dma.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index a82b2caaa560..b3edbb33b621 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -74,10 +74,10 @@ void *arch_dma_set_uncached(void *cpu_addr, size_t size) * We need to iterate through the pages, clearing the dcache for * them and setting the cache-inhibit bit. */ - mmap_read_lock(&init_mm); - error = walk_page_range(&init_mm, va, va + size, &set_nocache_walk_ops, - NULL); - mmap_read_unlock(&init_mm); + mmap_write_lock(&init_mm); + error = walk_page_range_novma(&init_mm, va, va + size, + &set_nocache_walk_ops, NULL, NULL); + mmap_write_unlock(&init_mm); if (error) return ERR_PTR(error); @@ -88,11 +88,11 @@ void arch_dma_clear_uncached(void *cpu_addr, size_t size) { unsigned long va = (unsigned long)cpu_addr; - mmap_read_lock(&init_mm); + mmap_write_lock(&init_mm); /* walk_page_range shouldn't be able to fail here */ - WARN_ON(walk_page_range(&init_mm, va, va + size, - &clear_nocache_walk_ops, NULL)); - mmap_read_unlock(&init_mm); + WARN_ON(walk_page_range_novma(&init_mm, va, va + size, + &clear_nocache_walk_ops, NULL, NULL)); + mmap_write_unlock(&init_mm); } void arch_sync_dma_for_device(phys_addr_t addr, size_t size, |