ARM: cache-cp15: Use more accurate types

size_t is the canonical type to represent variables that contain a size.
Use it instead of signed integer. Physical addresses can be larger than
32-bit, so use a more appropriate type for them as well. phys_addr_t is
a type that is 32-bit on systems that use 32-bit addresses and 64-bit if
the system is 64-bit or uses a form of physical address extension to use
a larger address space on 32-bit systems. Using these types the same API
can be implemented on a wider range of systems.

Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index ca2d44faf4e935e7f80f7acff6adb5e96192d5cf..61e2914d44b44a1d3be2e92b74f52d6a2a765b12 100644 (file)
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -201,7 +201,7 @@ enum {
  * \param size         size of memory region to change
  * \param option       dcache option to select
  */
-void mmu_set_region_dcache_behaviour(u32 start, int size,
+void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
                                     enum dcache_option option);
 
 /**

diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index 2155fe818717163caaa59428dbd842e0ffd926db..0291afa7bd531088f441808e9f9767cceb4d774b 100644 (file)
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -47,15 +47,15 @@ __weak void mmu_page_table_flush(unsigned long start, unsigned long stop)
        debug("%s: Warning: not implemented\n", __func__);
 }
 
-void mmu_set_region_dcache_behaviour(u32 start, int size,
+void mmu_set_region_dcache_behaviour(phys_addr_t start, size_t size,
                                     enum dcache_option option)
 {
        u32 *page_table = (u32 *)gd->arch.tlb_addr;
-       u32 upto, end;
+       unsigned long upto, end;
 
        end = ALIGN(start + size, MMU_SECTION_SIZE) >> MMU_SECTION_SHIFT;
        start = start >> MMU_SECTION_SHIFT;
-       debug("%s: start=%x, size=%x, option=%d\n", __func__, start, size,
+       debug("%s: start=%pa, size=%zu, option=%d\n", __func__, &start, size,
              option);
        for (upto = start; upto < end; upto++)
                set_section_dcache(upto, option);