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| author | Marcelo Tosatti <marcelo.tosatti@cyclades.com> | 2006-01-17 00:24:42 -0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-20 16:13:50 +1100 |
| commit | 0ec57e53c945fe962b190953f61e1ffd127e68d3 (patch) | |
| tree | 2c8cf3e91aa3222be2f7e55bbbd4f55c4deef98f /include | |
| parent | f4fc4a5b74cff2a487222f05704a2bd01953d250 (diff) | |
| download | op-kernel-dev-0ec57e53c945fe962b190953f61e1ffd127e68d3.zip op-kernel-dev-0ec57e53c945fe962b190953f61e1ffd127e68d3.tar.gz | |
[PATCH] powerpc: generalize PPC44x_PIN_SIZE
The following patch generalizes PPC44x_PIN_SIZE by changing it to
PPC_PIN_SIZE, which can be defined by any sub-arch to automatically adjust
VMALLOC_START.
Define PPC_PIN_SIZE on 8xx, avoiding potential conflicts with the
pinned space.
Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc/ibm44x.h | 2 | ||||
| -rw-r--r-- | include/asm-ppc/mpc8xx.h | 2 | ||||
| -rw-r--r-- | include/asm-ppc/pgtable.h | 6 |
3 files changed, 6 insertions, 4 deletions
diff --git a/include/asm-ppc/ibm44x.h b/include/asm-ppc/ibm44x.h index f835066..3acc382 100644 --- a/include/asm-ppc/ibm44x.h +++ b/include/asm-ppc/ibm44x.h @@ -29,7 +29,7 @@ /* TLB entry offset/size used for pinning kernel lowmem */ #define PPC44x_PIN_SHIFT 28 -#define PPC44x_PIN_SIZE (1 << PPC44x_PIN_SHIFT) +#define PPC_PIN_SIZE (1 << PPC44x_PIN_SHIFT) /* Lowest TLB slot consumed by the default pinned TLBs */ #define PPC44x_LOW_SLOT 63 diff --git a/include/asm-ppc/mpc8xx.h b/include/asm-ppc/mpc8xx.h index 46f159c..73ec9a6 100644 --- a/include/asm-ppc/mpc8xx.h +++ b/include/asm-ppc/mpc8xx.h @@ -113,6 +113,8 @@ enum ppc_sys_devices { MPC8xx_CPM_USB, }; +#define PPC_PIN_SIZE (24 * 1024 * 1024) /* 24Mbytes of data pinned */ + #ifndef BOARD_CHIP_NAME #define BOARD_CHIP_NAME "" #endif diff --git a/include/asm-ppc/pgtable.h b/include/asm-ppc/pgtable.h index 6d1c39e..e1c62da 100644 --- a/include/asm-ppc/pgtable.h +++ b/include/asm-ppc/pgtable.h @@ -12,6 +12,7 @@ #include <asm/processor.h> /* For TASK_SIZE */ #include <asm/mmu.h> #include <asm/page.h> +#include <asm/io.h> /* For sub-arch specific PPC_PIN_SIZE */ struct mm_struct; extern unsigned long va_to_phys(unsigned long address); @@ -127,9 +128,8 @@ extern unsigned long ioremap_bot, ioremap_base; * of RAM. -- Cort */ #define VMALLOC_OFFSET (0x1000000) /* 16M */ -#ifdef CONFIG_44x -#include <asm/ibm44x.h> -#define VMALLOC_START (((_ALIGN((long)high_memory, PPC44x_PIN_SIZE) + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) +#ifdef PPC_PIN_SIZE +#define VMALLOC_START (((_ALIGN((long)high_memory, PPC_PIN_SIZE) + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) #else #define VMALLOC_START ((((long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))) #endif |
