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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-16 02:47:33 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-16 02:47:33 +0300
commit36d8a3edf8bd504320fca970f8b0633b8226cb58 (patch)
tree73cdae79ee48101a689e07289f9e690364baef22 /arch/openrisc
parent41410965c3629367cbd0889dc0c8bddfb9e8a2d5 (diff)
parent34a0bac084e49324c29e6d0984d24096e02c6314 (diff)
downloadlinux-36d8a3edf8bd504320fca970f8b0633b8226cb58.tar.xz
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.c16
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,