diff options
Diffstat (limited to 'arch/parisc/kernel')
-rw-r--r-- | arch/parisc/kernel/asm-offsets.c | 3 | ||||
-rw-r--r-- | arch/parisc/kernel/cache.c | 4 | ||||
-rw-r--r-- | arch/parisc/kernel/entry.S | 36 | ||||
-rw-r--r-- | arch/parisc/kernel/head.S | 15 | ||||
-rw-r--r-- | arch/parisc/kernel/init_task.c | 10 | ||||
-rw-r--r-- | arch/parisc/kernel/pacache.S | 25 | ||||
-rw-r--r-- | arch/parisc/kernel/parisc_ksyms.c | 1 | ||||
-rw-r--r-- | arch/parisc/kernel/sys_parisc.c | 8 | ||||
-rw-r--r-- | arch/parisc/kernel/syscall.S | 10 | ||||
-rw-r--r-- | arch/parisc/kernel/syscall_table.S | 8 | ||||
-rw-r--r-- | arch/parisc/kernel/vmlinux.lds.S | 54 |
11 files changed, 104 insertions, 70 deletions
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c index e23c4e1..c11a5bc 100644 --- a/arch/parisc/kernel/asm-offsets.c +++ b/arch/parisc/kernel/asm-offsets.c @@ -288,8 +288,11 @@ int main(void) DEFINE(ASM_PGD_ENTRY_SIZE, PGD_ENTRY_SIZE); DEFINE(ASM_PMD_ENTRY_SIZE, PMD_ENTRY_SIZE); DEFINE(ASM_PTE_ENTRY_SIZE, PTE_ENTRY_SIZE); + DEFINE(ASM_PFN_PTE_SHIFT, PFN_PTE_SHIFT); DEFINE(ASM_PT_INITIAL, PT_INITIAL); DEFINE(ASM_PAGE_SIZE, PAGE_SIZE); + DEFINE(ASM_PAGE_SIZE_DIV64, PAGE_SIZE/64); + DEFINE(ASM_PAGE_SIZE_DIV128, PAGE_SIZE/128); BLANK(); DEFINE(EXCDATA_IP, offsetof(struct exception_data, fault_ip)); DEFINE(EXCDATA_SPACE, offsetof(struct exception_data, fault_space)); diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 360b739..c057ad7 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -4,7 +4,7 @@ * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 1999 Helge Deller (07-13-1999) + * Copyright (C) 1999-2006 Helge Deller <deller@gmx.de> (07-13-1999) * Copyright (C) 1999 SuSE GmbH Nuernberg * Copyright (C) 2000 Philipp Rumpf (prumpf@tux.org) * @@ -358,5 +358,5 @@ void parisc_setup_cache_timing(void) if (!parisc_cache_flush_threshold) parisc_cache_flush_threshold = FLUSH_THRESHOLD; - printk("Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus()); + printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus()); } diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 7c95d76..d9e53cf 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -502,18 +502,20 @@ * all ILP32 processes and all the kernel for machines with * under 4GB of memory) */ .macro L3_ptep pgd,pte,index,va,fault +#if PT_NLEVELS == 3 /* we might have a 2-Level scheme, e.g. with 16kb page size */ extrd,u \va,63-ASM_PGDIR_SHIFT,ASM_BITS_PER_PGD,\index copy %r0,\pte - extrd,u,*= \va,31,32,%r0 + extrd,u,*= \va,63-ASM_PGDIR_SHIFT,64-ASM_PGDIR_SHIFT,%r0 ldw,s \index(\pgd),\pgd - extrd,u,*= \va,31,32,%r0 + extrd,u,*= \va,63-ASM_PGDIR_SHIFT,64-ASM_PGDIR_SHIFT,%r0 bb,>=,n \pgd,_PxD_PRESENT_BIT,\fault - extrd,u,*= \va,31,32,%r0 + extrd,u,*= \va,63-ASM_PGDIR_SHIFT,64-ASM_PGDIR_SHIFT,%r0 shld \pgd,PxD_VALUE_SHIFT,\index - extrd,u,*= \va,31,32,%r0 + extrd,u,*= \va,63-ASM_PGDIR_SHIFT,64-ASM_PGDIR_SHIFT,%r0 copy \index,\pgd - extrd,u,*<> \va,31,32,%r0 + extrd,u,*<> \va,63-ASM_PGDIR_SHIFT,64-ASM_PGDIR_SHIFT,%r0 ldo ASM_PGD_PMD_OFFSET(\pgd),\pgd +#endif L2_ptep \pgd,\pte,\index,\va,\fault .endm @@ -563,10 +565,18 @@ extrd,u,*= \pte,_PAGE_GATEWAY_BIT+32,1,%r0 depd %r0,11,2,\prot /* If Gateway, Set PL2 to 0 */ - /* Get rid of prot bits and convert to page addr for iitlbt and idtlbt */ + /* Enforce uncacheable pages. + * This should ONLY be use for MMIO on PA 2.0 machines. + * Memory/DMA is cache coherent on all PA2.0 machines we support + * (that means T-class is NOT supported) and the memory controllers + * on most of those machines only handles cache transactions. + */ + extrd,u,*= \pte,_PAGE_NO_CACHE_BIT+32,1,%r0 + depi 1,12,1,\prot - depd %r0,63,PAGE_SHIFT,\pte - extrd,s \pte,(63-PAGE_SHIFT)+(63-58),64-PAGE_SHIFT,\pte + /* Drop prot bits and convert to page addr for iitlbt and idtlbt */ + extrd,u \pte,(63-ASM_PFN_PTE_SHIFT)+(63-58),64-PAGE_SHIFT,\pte + depdi _PAGE_SIZE_ENCODING_DEFAULT,63,63-58,\pte .endm /* Identical macro to make_insert_tlb above, except it @@ -584,9 +594,8 @@ /* Get rid of prot bits and convert to page addr for iitlba */ - depi 0,31,PAGE_SHIFT,\pte + depi _PAGE_SIZE_ENCODING_DEFAULT,31,ASM_PFN_PTE_SHIFT,\pte extru \pte,24,25,\pte - .endm /* This is for ILP32 PA2.0 only. The TLB insertion needs @@ -1201,10 +1210,9 @@ intr_save: */ /* adjust isr/ior. */ - - extrd,u %r16,63,7,%r1 /* get high bits from isr for ior */ - depd %r1,31,7,%r17 /* deposit them into ior */ - depdi 0,63,7,%r16 /* clear them from isr */ + extrd,u %r16,63,SPACEID_SHIFT,%r1 /* get high bits from isr for ior */ + depd %r1,31,SPACEID_SHIFT,%r17 /* deposit them into ior */ + depdi 0,63,SPACEID_SHIFT,%r16 /* clear them from isr */ #endif STREG %r16, PT_ISR(%r29) STREG %r17, PT_IOR(%r29) diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S index 0b47afc..3e79e62 100644 --- a/arch/parisc/kernel/head.S +++ b/arch/parisc/kernel/head.S @@ -76,16 +76,16 @@ $bss_loop: mtctl %r4,%cr24 /* Initialize kernel root pointer */ mtctl %r4,%cr25 /* Initialize user root pointer */ -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 /* Set pmd in pgd */ load32 PA(pmd0),%r5 shrd %r5,PxD_VALUE_SHIFT,%r3 - ldo (PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3 + ldo (PxD_FLAG_PRESENT+PxD_FLAG_VALID)(%r3),%r3 stw %r3,ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4) ldo ASM_PMD_ENTRY*ASM_PMD_ENTRY_SIZE(%r5),%r4 #else /* 2-level page table, so pmd == pgd */ - ldo ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4 + ldo ASM_PGD_ENTRY*ASM_PGD_ENTRY_SIZE(%r4),%r4 #endif /* Fill in pmd with enough pte directories */ @@ -99,7 +99,7 @@ $bss_loop: stw %r3,0(%r4) ldo (ASM_PAGE_SIZE >> PxD_VALUE_SHIFT)(%r3),%r3 addib,> -1,%r1,1b -#ifdef CONFIG_64BIT +#if PT_NLEVELS == 3 ldo ASM_PMD_ENTRY_SIZE(%r4),%r4 #else ldo ASM_PGD_ENTRY_SIZE(%r4),%r4 @@ -107,13 +107,14 @@ $bss_loop: /* Now initialize the PTEs themselves */ - ldo _PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */ + ldo 0+_PAGE_KERNEL(%r0),%r3 /* Hardwired 0 phys addr start */ + ldi (1<<(KERNEL_INITIAL_ORDER-PAGE_SHIFT)),%r11 /* PFN count */ load32 PA(pg0),%r1 $pgt_fill_loop: STREGM %r3,ASM_PTE_ENTRY_SIZE(%r1) - ldo ASM_PAGE_SIZE(%r3),%r3 - bb,>= %r3,31-KERNEL_INITIAL_ORDER,$pgt_fill_loop + ldo (1<<PFN_PTE_SHIFT)(%r3),%r3 /* add one PFN */ + addib,> -1,%r11,$pgt_fill_loop nop /* Load the return address...er...crash 'n burn */ diff --git a/arch/parisc/kernel/init_task.c b/arch/parisc/kernel/init_task.c index 7e898fd..8384bf9 100644 --- a/arch/parisc/kernel/init_task.c +++ b/arch/parisc/kernel/init_task.c @@ -53,17 +53,17 @@ union thread_union init_thread_union __attribute__((aligned(128))) __attribute__((__section__(".data.init_task"))) = { INIT_THREAD_INFO(init_task) }; -#ifdef __LP64__ +#if PT_NLEVELS == 3 /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout * with the first pmd adjacent to the pgd and below it. gcc doesn't actually * guarantee that global objects will be laid out in memory in the same order * as the order of declaration, so put these in different sections and use * the linker script to order them. */ -pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pmd"))) = { {0}, }; - +pmd_t pmd0[PTRS_PER_PMD] __attribute__ ((__section__ (".data.vm0.pmd"), aligned(PAGE_SIZE))); #endif -pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pgd"))) = { {0}, }; -pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((aligned(PAGE_SIZE))) __attribute__ ((__section__ (".data.vm0.pte"))) = { {0}, }; + +pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__ ((__section__ (".data.vm0.pgd"), aligned(PAGE_SIZE))); +pte_t pg0[PT_INITIAL * PTRS_PER_PTE] __attribute__ ((__section__ (".data.vm0.pte"), aligned(PAGE_SIZE))); /* * Initial task structure. diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S index 7a4f07e..f600556 100644 --- a/arch/parisc/kernel/pacache.S +++ b/arch/parisc/kernel/pacache.S @@ -65,7 +65,7 @@ flush_tlb_all_local: */ /* pcxt_ssm_bug - relied upon translation! PA 2.0 Arch. F-4 and F-5 */ - rsm PSW_SM_I, %r19 /* save I-bit state */ + rsm PSW_SM_I, %r19 /* save I-bit state */ load32 PA(1f), %r1 nop nop @@ -84,8 +84,7 @@ flush_tlb_all_local: rfi nop -1: ldil L%PA(cache_info), %r1 - ldo R%PA(cache_info)(%r1), %r1 +1: load32 PA(cache_info), %r1 /* Flush Instruction Tlb */ @@ -212,8 +211,7 @@ flush_instruction_cache_local: .entry mtsp %r0, %sr1 - ldil L%cache_info, %r1 - ldo R%cache_info(%r1), %r1 + load32 cache_info, %r1 /* Flush Instruction Cache */ @@ -254,8 +252,7 @@ flush_data_cache_local: .entry mtsp %r0, %sr1 - ldil L%cache_info, %r1 - ldo R%cache_info(%r1), %r1 + load32 cache_info, %r1 /* Flush Data Cache */ @@ -303,7 +300,8 @@ copy_user_page_asm: */ ldd 0(%r25), %r19 - ldi 32, %r1 /* PAGE_SIZE/128 == 32 */ + ldi ASM_PAGE_SIZE_DIV128, %r1 + ldw 64(%r25), %r0 /* prefetch 1 cacheline ahead */ ldw 128(%r25), %r0 /* prefetch 2 */ @@ -368,7 +366,7 @@ copy_user_page_asm: * use ldd/std on a 32 bit kernel. */ ldw 0(%r25), %r19 - ldi 64, %r1 /* PAGE_SIZE/64 == 64 */ + ldi ASM_PAGE_SIZE_DIV64, %r1 1: ldw 4(%r25), %r20 @@ -461,6 +459,7 @@ copy_user_page_asm: sub %r25, %r1, %r23 /* move physical addr into non shadowed reg */ ldil L%(TMPALIAS_MAP_START), %r28 + /* FIXME for different page sizes != 4k */ #ifdef CONFIG_64BIT extrd,u %r26,56,32, %r26 /* convert phys addr to tlb insert format */ extrd,u %r23,56,32, %r23 /* convert phys addr to tlb insert format */ @@ -551,6 +550,7 @@ __clear_user_page_asm: #ifdef CONFIG_64BIT #if (TMPALIAS_MAP_START >= 0x80000000) depdi 0, 31,32, %r28 /* clear any sign extension */ + /* FIXME: page size dependend */ #endif extrd,u %r26, 56,32, %r26 /* convert phys addr to tlb insert format */ depd %r25, 63,22, %r28 /* Form aliased virtual address 'to' */ @@ -566,10 +566,10 @@ __clear_user_page_asm: pdtlb 0(%r28) #ifdef CONFIG_64BIT - ldi 32, %r1 /* PAGE_SIZE/128 == 32 */ + ldi ASM_PAGE_SIZE_DIV128, %r1 /* PREFETCH (Write) has not (yet) been proven to help here */ -/* #define PREFETCHW_OP ldd 256(%0), %r0 */ + /* #define PREFETCHW_OP ldd 256(%0), %r0 */ 1: std %r0, 0(%r28) std %r0, 8(%r28) @@ -591,8 +591,7 @@ __clear_user_page_asm: ldo 128(%r28), %r28 #else /* ! CONFIG_64BIT */ - - ldi 64, %r1 /* PAGE_SIZE/64 == 64 */ + ldi ASM_PAGE_SIZE_DIV64, %r1 1: stw %r0, 0(%r28) diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c index 47ca5c0..fc107ad 100644 --- a/arch/parisc/kernel/parisc_ksyms.c +++ b/arch/parisc/kernel/parisc_ksyms.c @@ -31,7 +31,6 @@ #include <linux/string.h> EXPORT_SYMBOL(memset); -EXPORT_SYMBOL(strpbrk); #include <asm/atomic.h> EXPORT_SYMBOL(__xchg8); diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index d15a1d5..8b5df98 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -231,6 +231,14 @@ asmlinkage long parisc_fadvise64_64(int fd, (loff_t)high_len << 32 | low_len, advice); } +asmlinkage long parisc_sync_file_range(int fd, + u32 hi_off, u32 lo_off, u32 hi_nbytes, u32 lo_nbytes, + unsigned int flags) +{ + return sys_sync_file_range(fd, (loff_t)hi_off << 32 | lo_off, + (loff_t)hi_nbytes << 32 | lo_nbytes, flags); +} + asmlinkage unsigned long sys_alloc_hugepages(int key, unsigned long addr, unsigned long len, int prot, int flag) { return -ENOMEM; diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index af88afe..479d9a0 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -55,7 +55,7 @@ * pointers. */ - .align 4096 + .align ASM_PAGE_SIZE linux_gateway_page: /* ADDRESS 0x00 to 0xb0 = 176 bytes / 4 bytes per insn = 44 insns */ @@ -632,7 +632,7 @@ cas_action: end_compare_and_swap: /* Make sure nothing else is placed on this page */ - .align 4096 + .align ASM_PAGE_SIZE .export end_linux_gateway_page end_linux_gateway_page: @@ -652,7 +652,7 @@ end_linux_gateway_page: .section .rodata,"a" - .align 4096 + .align ASM_PAGE_SIZE /* Light-weight-syscall table */ /* Start of lws table. */ .export lws_table @@ -662,14 +662,14 @@ lws_table: LWS_ENTRY(compare_and_swap64) /* 1 - ELF64 Atomic compare and swap */ /* End of lws table */ - .align 4096 + .align ASM_PAGE_SIZE .export sys_call_table .Lsys_call_table: sys_call_table: #include "syscall_table.S" #ifdef CONFIG_64BIT - .align 4096 + .align ASM_PAGE_SIZE .export sys_call_table64 .Lsys_call_table64: sys_call_table64: diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index bbeeb61..e27b432 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -13,7 +13,7 @@ * Copyright (C) 2001 Helge Deller <deller at parisc-linux.org> * Copyright (C) 2000-2001 Thomas Bogendoerfer <tsbogend at parisc-linux.org> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> - * + * Copyright (C) 2005-2006 Kyle McMartin <kyle at parisc-linux.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -393,5 +393,11 @@ ENTRY_SAME(readlinkat) /* 285 */ ENTRY_SAME(fchmodat) ENTRY_SAME(faccessat) + ENTRY_SAME(unshare) + ENTRY_COMP(set_robust_list) + ENTRY_COMP(get_robust_list) /* 290 */ + ENTRY_SAME(splice) + ENTRY_OURS(sync_file_range) + ENTRY_SAME(tee) /* Nothing yet */ diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S index 6d6436a..94dcc03 100644 --- a/arch/parisc/kernel/vmlinux.lds.S +++ b/arch/parisc/kernel/vmlinux.lds.S @@ -6,6 +6,7 @@ * Copyright (C) 2000 Michael Ang <mang with subcarrier.org> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> * Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org> + * Copyright (C) 2006 Helge Deller <deller@gmx.de> * * * This program is free software; you can redistribute it and/or modify @@ -27,6 +28,7 @@ /* needed for the processor specific cache alignment size */ #include <asm/cache.h> #include <asm/page.h> +#include <asm/asm-offsets.h> /* ld script to make hppa Linux kernel */ #ifndef CONFIG_64BIT @@ -68,7 +70,7 @@ SECTIONS RODATA /* writeable */ - . = ALIGN(4096); /* Make sure this is page aligned so + . = ALIGN(ASM_PAGE_SIZE); /* Make sure this is page aligned so that we can properly leave these as writable */ data_start = .; @@ -81,23 +83,17 @@ SECTIONS __start___unwind = .; /* unwind info */ .PARISC.unwind : { *(.PARISC.unwind) } __stop___unwind = .; - + + /* rarely changed data like cpu maps */ + . = ALIGN(16); + .data.read_mostly : { *(.data.read_mostly) } + + . = ALIGN(L1_CACHE_BYTES); .data : { /* Data */ *(.data) - *(.data.vm0.pmd) - *(.data.vm0.pgd) - *(.data.vm0.pte) CONSTRUCTORS } - . = ALIGN(4096); - /* nosave data is really only used for software suspend...it's here - * just in case we ever implement it */ - __nosave_begin = .; - .data_nosave : { *(.data.nosave) } - . = ALIGN(4096); - __nosave_end = .; - . = ALIGN(L1_CACHE_BYTES); .data.cacheline_aligned : { *(.data.cacheline_aligned) } @@ -105,12 +101,29 @@ SECTIONS . = ALIGN(16); .data.lock_aligned : { *(.data.lock_aligned) } - /* rarely changed data like cpu maps */ - . = ALIGN(16); - .data.read_mostly : { *(.data.read_mostly) } + . = ALIGN(ASM_PAGE_SIZE); + /* nosave data is really only used for software suspend...it's here + * just in case we ever implement it */ + __nosave_begin = .; + .data_nosave : { *(.data.nosave) } + . = ALIGN(ASM_PAGE_SIZE); + __nosave_end = .; _edata = .; /* End of data section */ + __bss_start = .; /* BSS */ + /* page table entries need to be PAGE_SIZE aligned */ + . = ALIGN(ASM_PAGE_SIZE); + .data.vmpages : { + *(.data.vm0.pmd) + *(.data.vm0.pgd) + *(.data.vm0.pte) + } + .bss : { *(.bss) *(COMMON) } + __bss_stop = .; + + + /* assembler code expects init_task to be 16k aligned */ . = ALIGN(16384); /* init_task */ .data.init_task : { *(.data.init_task) } @@ -126,6 +139,7 @@ SECTIONS .dlt : { *(.dlt) } #endif + /* reserve space for interrupt stack by aligning __init* to 16k */ . = ALIGN(16384); __init_begin = .; .init.text : { @@ -166,7 +180,7 @@ SECTIONS from .altinstructions and .eh_frame */ .exit.text : { *(.exit.text) } .exit.data : { *(.exit.data) } - . = ALIGN(4096); + . = ALIGN(ASM_PAGE_SIZE); __initramfs_start = .; .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; @@ -174,14 +188,10 @@ SECTIONS __per_cpu_start = .; .data.percpu : { *(.data.percpu) } __per_cpu_end = .; - . = ALIGN(4096); + . = ALIGN(ASM_PAGE_SIZE); __init_end = .; /* freed after init ends here */ - __bss_start = .; /* BSS */ - .bss : { *(.bss) *(COMMON) } - __bss_stop = .; - _end = . ; /* Sections to be discarded */ |