diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/40x_mmu.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/mm/fsl_booke_mmu.c | 11 | ||||
| -rw-r--r-- | arch/powerpc/mm/init_32.c | 7 | ||||
| -rw-r--r-- | arch/powerpc/mm/mmu_decl.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable_32.c | 5 | ||||
| -rw-r--r-- | arch/powerpc/mm/ppc_mmu_32.c | 11 |
6 files changed, 15 insertions, 22 deletions
diff --git a/arch/powerpc/mm/40x_mmu.c b/arch/powerpc/mm/40x_mmu.c index 3899ea97fbd..cecbbc76f62 100644 --- a/arch/powerpc/mm/40x_mmu.c +++ b/arch/powerpc/mm/40x_mmu.c @@ -97,7 +97,7 @@ unsigned long __init mmu_mapin_ram(void) phys_addr_t p; v = KERNELBASE; - p = PPC_MEMSTART; + p = 0; s = total_lowmem; if (__map_without_ltlbs) diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c index c93a966b7e4..3dd0c8189ba 100644 --- a/arch/powerpc/mm/fsl_booke_mmu.c +++ b/arch/powerpc/mm/fsl_booke_mmu.c @@ -53,13 +53,12 @@ #include <asm/machdep.h> #include <asm/setup.h> +#include "mmu_decl.h" + extern void loadcam_entry(unsigned int index); unsigned int tlbcam_index; unsigned int num_tlbcam_entries; static unsigned long __cam0, __cam1, __cam2; -extern unsigned long total_lowmem; -extern unsigned long __max_low_memory; -extern unsigned long __initial_memory_limit; #define MAX_LOW_MEM CONFIG_LOWMEM_SIZE #define NUM_TLBCAMS (16) @@ -165,15 +164,15 @@ void invalidate_tlbcam_entry(int index) void __init cam_mapin_ram(unsigned long cam0, unsigned long cam1, unsigned long cam2) { - settlbcam(0, PAGE_OFFSET, PPC_MEMSTART, cam0, _PAGE_KERNEL, 0); + settlbcam(0, PAGE_OFFSET, memstart_addr, cam0, _PAGE_KERNEL, 0); tlbcam_index++; if (cam1) { tlbcam_index++; - settlbcam(1, PAGE_OFFSET+cam0, PPC_MEMSTART+cam0, cam1, _PAGE_KERNEL, 0); + settlbcam(1, PAGE_OFFSET+cam0, memstart_addr+cam0, cam1, _PAGE_KERNEL, 0); } if (cam2) { tlbcam_index++; - settlbcam(2, PAGE_OFFSET+cam0+cam1, PPC_MEMSTART+cam0+cam1, cam2, _PAGE_KERNEL, 0); + settlbcam(2, PAGE_OFFSET+cam0+cam1, memstart_addr+cam0+cam1, cam2, _PAGE_KERNEL, 0); } } diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index 0c66a9fe63f..1d7e5b8ade6 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -59,8 +59,8 @@ DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); unsigned long total_memory; unsigned long total_lowmem; -unsigned long ppc_memstart; -unsigned long ppc_memoffset = PAGE_OFFSET; +phys_addr_t memstart_addr; +phys_addr_t lowmem_end_addr; int boot_mapsize; #ifdef CONFIG_PPC_PMAC @@ -145,8 +145,7 @@ void __init MMU_init(void) printk(KERN_WARNING "Only using first contiguous memory region"); } - total_memory = lmb_end_of_DRAM(); - total_lowmem = total_memory; + total_lowmem = total_memory = lmb_end_of_DRAM() - memstart_addr; #ifdef CONFIG_FSL_BOOKE /* Freescale Book-E parts expect lowmem to be mapped by fixed TLB diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index ebfd13dc9d1..5bc11f5933a 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -51,6 +51,7 @@ extern unsigned long __max_low_memory; extern unsigned long __initial_memory_limit; extern unsigned long total_memory; extern unsigned long total_lowmem; +extern phys_addr_t memstart_addr; /* ...and now those things that may be slightly different between processor * architectures. -- Dan diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c index ac3390f8190..64c44bcc68d 100644 --- a/arch/powerpc/mm/pgtable_32.c +++ b/arch/powerpc/mm/pgtable_32.c @@ -281,12 +281,13 @@ int map_page(unsigned long va, phys_addr_t pa, int flags) */ void __init mapin_ram(void) { - unsigned long v, p, s, f; + unsigned long v, s, f; + phys_addr_t p; int ktext; s = mmu_mapin_ram(); v = KERNELBASE + s; - p = PPC_MEMSTART + s; + p = memstart_addr + s; for (; s < total_lowmem; s += PAGE_SIZE) { ktext = ((char *) v >= _stext && (char *) v < etext); f = ktext ?_PAGE_RAM_TEXT : _PAGE_RAM; diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index 72de3c79210..65f915cbd29 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -82,7 +82,6 @@ unsigned long __init mmu_mapin_ram(void) #else unsigned long tot, bl, done; unsigned long max_size = (256<<20); - unsigned long align; if (__map_without_bats) { printk(KERN_DEBUG "RAM mapped without BATs\n"); @@ -93,19 +92,13 @@ unsigned long __init mmu_mapin_ram(void) /* Make sure we don't map a block larger than the smallest alignment of the physical address. */ - /* alignment of PPC_MEMSTART */ - align = ~(PPC_MEMSTART-1) & PPC_MEMSTART; - /* set BAT block size to MIN(max_size, align) */ - if (align && align < max_size) - max_size = align; - tot = total_lowmem; for (bl = 128<<10; bl < max_size; bl <<= 1) { if (bl * 2 > tot) break; } - setbat(2, KERNELBASE, PPC_MEMSTART, bl, _PAGE_RAM); + setbat(2, KERNELBASE, 0, bl, _PAGE_RAM); done = (unsigned long)bat_addrs[2].limit - KERNELBASE + 1; if ((done < tot) && !bat_addrs[3].limit) { /* use BAT3 to cover a bit more */ @@ -113,7 +106,7 @@ unsigned long __init mmu_mapin_ram(void) for (bl = 128<<10; bl < max_size; bl <<= 1) if (bl * 2 > tot) break; - setbat(3, KERNELBASE+done, PPC_MEMSTART+done, bl, _PAGE_RAM); + setbat(3, KERNELBASE+done, done, bl, _PAGE_RAM); done = (unsigned long)bat_addrs[3].limit - KERNELBASE + 1; } |