From 637a6ff6ce525d8495df944550efea0f023dd521 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Tue, 20 Sep 2005 13:47:41 +1000 Subject: [PATCH] [PATCH] ppc64: Updated Olof misc updates 3/3 Replace some of the hard-coded constants with PAGE_SIZE/SHIFT/ORDER where appropriate. Likewise, in a couple of places it doesn't make sense to base some allocations on page size when all that's required is a constant 4K, etc. Signed-off-by: Olof Johansson Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras --- arch/ppc64/kernel/head.S | 2 +- arch/ppc64/kernel/misc.S | 2 +- arch/ppc64/kernel/vmlinux.lds.S | 16 ++++++++++------ include/asm-ppc64/elf.h | 3 ++- include/asm-ppc64/mmu.h | 2 +- include/asm-ppc64/thread_info.h | 6 +++--- 6 files changed, 18 insertions(+), 13 deletions(-) diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index 72c61041151..22a5ee07e1e 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -1992,7 +1992,7 @@ _GLOBAL(smp_release_cpus) */ .section ".bss" - .align 12 + .align PAGE_SHIFT .globl empty_zero_page empty_zero_page: diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S index e7241ad80a0..a25b59759dd 100644 --- a/arch/ppc64/kernel/misc.S +++ b/arch/ppc64/kernel/misc.S @@ -329,7 +329,7 @@ _GLOBAL(__flush_dcache_icache) /* Flush the dcache */ ld r7,PPC64_CACHES@toc(r2) - clrrdi r3,r3,12 /* Page align */ + clrrdi r3,r3,PAGE_SHIFT /* Page align */ lwz r4,DCACHEL1LINESPERPAGE(r7) /* Get # dcache lines per page */ lwz r5,DCACHEL1LINESIZE(r7) /* Get dcache line size */ mr r6,r3 diff --git a/arch/ppc64/kernel/vmlinux.lds.S b/arch/ppc64/kernel/vmlinux.lds.S index 0306510bc4f..f34d514432a 100644 --- a/arch/ppc64/kernel/vmlinux.lds.S +++ b/arch/ppc64/kernel/vmlinux.lds.S @@ -1,3 +1,4 @@ +#include #include OUTPUT_ARCH(powerpc:common64) @@ -17,7 +18,7 @@ SECTIONS LOCK_TEXT KPROBES_TEXT *(.fixup) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); _etext = .; } @@ -43,7 +44,7 @@ SECTIONS /* will be freed after init */ - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); __init_begin = .; .init.text : { @@ -83,7 +84,7 @@ SECTIONS SECURITY_INIT - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .init.ramfs : { __initramfs_start = .; *(.init.ramfs) @@ -96,18 +97,21 @@ SECTIONS __per_cpu_end = .; } + . = ALIGN(PAGE_SIZE); . = ALIGN(16384); __init_end = .; /* freed after init ends here */ /* Read/write sections */ + . = ALIGN(PAGE_SIZE); . = ALIGN(16384); /* The initial task and kernel stack */ .data.init_task : { *(.data.init_task) } + . = ALIGN(PAGE_SIZE); .data.page_aligned : { *(.data.page_aligned) } @@ -129,18 +133,18 @@ SECTIONS __toc_start = .; *(.got) *(.toc) - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); _edata = .; } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); .bss : { __bss_start = .; *(.bss) __bss_stop = .; } - . = ALIGN(4096); + . = ALIGN(PAGE_SIZE); _end = . ; } diff --git a/include/asm-ppc64/elf.h b/include/asm-ppc64/elf.h index c919a89343d..e27c2942953 100644 --- a/include/asm-ppc64/elf.h +++ b/include/asm-ppc64/elf.h @@ -5,6 +5,7 @@ #include #include #include +#include /* PowerPC relocations defined by the ABIs */ #define R_PPC_NONE 0 @@ -146,7 +147,7 @@ typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32]; #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) #define USE_ELF_CORE_DUMP -#define ELF_EXEC_PAGESIZE 4096 +#define ELF_EXEC_PAGESIZE PAGE_SIZE /* This is the location that an ET_DYN program is loaded if exec'ed. Typical use of this is to invoke "./ld.so someprog" to test out a new version of diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h index 737e85a5ce3..d2b0b796d35 100644 --- a/include/asm-ppc64/mmu.h +++ b/include/asm-ppc64/mmu.h @@ -30,7 +30,7 @@ /* Location of cpu0's segment table */ #define STAB0_PAGE 0x6 -#define STAB0_PHYS_ADDR (STAB0_PAGE<