diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-07-10 16:12:12 +0200 |
|---|---|---|
| committer | Lucas Stach <l.stach@pengutronix.de> | 2018-07-27 10:43:51 +0200 |
| commit | 4996ed5efbb2d7cd38a17fe456f8da820f1a1ef3 (patch) | |
| tree | b4a65216ba90a41d56f4668c592663e30bb2ced4 | |
| parent | 1c1121f0c2414780c804707cc852f8b73cd4daec (diff) | |
| download | barebox-4996ed5efbb2d7cd38a17fe456f8da820f1a1ef3.tar.gz barebox-4996ed5efbb2d7cd38a17fe456f8da820f1a1ef3.tar.xz | |
ARM: MMU: fix arch_remap_range() across section boundaries
Fixes: e3e54c6441 ARM: mmu: Implement on-demand PTE allocation
PGD_FLAGS_WC_V7 lacks the PMD_TYPE_SECT and PMD_SECT_BUFFERABLE flags.
Without them a dma_alloc_writecombine() creates an invalid section when
it crosses a section boundary.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
| -rw-r--r-- | arch/arm/cpu/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c index 7e2e5bf7e0..ae189ecdeb 100644 --- a/arch/arm/cpu/mmu.c +++ b/arch/arm/cpu/mmu.c @@ -61,7 +61,7 @@ static inline void tlb_invalidate(void) #define PTE_FLAGS_UNCACHED_V7 (0) #define PTE_FLAGS_CACHED_V4 (PTE_SMALL_AP_UNO_SRW | PTE_BUFFERABLE | PTE_CACHEABLE) #define PTE_FLAGS_UNCACHED_V4 PTE_SMALL_AP_UNO_SRW -#define PGD_FLAGS_WC_V7 PMD_SECT_TEX(1) +#define PGD_FLAGS_WC_V7 (PMD_SECT_TEX(1) | PMD_TYPE_SECT | PMD_SECT_BUFFERABLE) /* * PTE flags to set cached and uncached areas. |