Simplify the use of dma_flush_range() by changing its signature to
accept pointer to start of the data and data size. This change allows
us to avoid a whole bunch of repetitive arithmetic currently done by
all of the callers.
Reviewed-by: Lucas Stach <l.st...@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com>
---
arch/arm/cpu/mmu.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
index 5e1e613d9..c3c23c639 100644
--- a/arch/arm/cpu/mmu.c
+++ b/arch/arm/cpu/mmu.c
@@ -142,8 +142,11 @@ static u32 *find_pte(unsigned long adr)
return &table[(adr >> PAGE_SHIFT) & 0xff];
}
-static void dma_flush_range(unsigned long start, unsigned long end)
+static void dma_flush_range(void *ptr, size_t size)
{
+ unsigned long start = (unsigned long)ptr;
+ unsigned long end = start + size;
+
__dma_flush_range(start, end);
if (outer_cache.flush_range)
outer_cache.flush_range(start, end);
@@ -170,9 +173,7 @@ static int __remap_range(void *_start, size_t size, u32
pte_flags)
p[i] |= pte_flags | PTE_TYPE_SMALL;
}
- dma_flush_range((unsigned long)p,
- (unsigned long)p + numentries * sizeof(u32));
-
+ dma_flush_range(p, numentries * sizeof(u32));
tlb_invalidate();
return 0;
@@ -203,7 +204,7 @@ void *map_io_sections(unsigned long phys, void *_start,
size_t size)
for (sec = start; sec < start + size; sec += PGDIR_SIZE, phys +=
PGDIR_SIZE)
ttb[pgd_index(sec)] = phys | PMD_SECT_DEF_UNCACHED;
- dma_flush_range((unsigned long)ttb, (unsigned long)ttb + 0x4000);
+ dma_flush_range(ttb, 0x4000);
tlb_invalidate();
return _start;
}
@@ -249,9 +250,8 @@ static int arm_mmu_remap_sdram(struct memory_bank *bank)
pte += PTRS_PER_PTE;
}
- dma_flush_range((unsigned long)ttb, (unsigned long)ttb + 0x4000);
- dma_flush_range((unsigned long)ptes,
- (unsigned long)ptes + num_ptes * sizeof(u32));
+ dma_flush_range(ttb, 0x4000);
+ dma_flush_range(ptes, num_ptes * sizeof(u32));
tlb_invalidate();
--
2.17.0
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