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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

Browse source 
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC32]: Silence sparc32 warnings on missing syscalls.
  [SPARC64]: Fix two kernel linear mapping setup bugs.
This commit is contained in:
Linus Torvalds 2007-12-17 08:43:02 -08:00
commit de29cba9c9
4 changed files with 45 additions and 9 deletions
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12
arch/sparc64/kernel/entry.S
View file

@ -2593,3 +2593,15 @@ sun4v_mmustat_info:
retl
nop
.size sun4v_mmustat_info, .-sun4v_mmustat_info
.globl sun4v_mmu_demap_all
.type sun4v_mmu_demap_all,#function
sun4v_mmu_demap_all:
clr %o0
clr %o1
mov HV_MMU_ALL, %o2
mov HV_FAST_MMU_DEMAP_ALL, %o5
ta HV_FAST_TRAP
retl
nop
.size sun4v_mmu_demap_all, .-sun4v_mmu_demap_all

29
arch/sparc64/mm/init.c
View file

@ -1133,14 +1133,9 @@ static void __init mark_kpte_bitmap(unsigned long start, unsigned long end)
}
}
static void __init kernel_physical_mapping_init(void)
static void __init init_kpte_bitmap(void)
{
unsigned long i;
#ifdef CONFIG_DEBUG_PAGEALLOC
unsigned long mem_alloced = 0UL;
#endif
read_obp_memory("reg", &pall[0], &pall_ents);
for (i = 0; i < pall_ents; i++) {
unsigned long phys_start, phys_end;
@ -1149,14 +1144,24 @@ static void __init kernel_physical_mapping_init(void)
phys_end = phys_start + pall[i].reg_size;
mark_kpte_bitmap(phys_start, phys_end);
}
}
static void __init kernel_physical_mapping_init(void)
{
#ifdef CONFIG_DEBUG_PAGEALLOC
unsigned long i, mem_alloced = 0UL;
for (i = 0; i < pall_ents; i++) {
unsigned long phys_start, phys_end;
phys_start = pall[i].phys_addr;
phys_end = phys_start + pall[i].reg_size;
mem_alloced += kernel_map_range(phys_start, phys_end,
PAGE_KERNEL);
#endif
}
#ifdef CONFIG_DEBUG_PAGEALLOC
printk("Allocated %ld bytes for kernel page tables.\n",
mem_alloced);
@ -1398,6 +1403,10 @@ void __init paging_init(void)
inherit_prom_mappings();
read_obp_memory("reg", &pall[0], &pall_ents);
init_kpte_bitmap();
/* Ok, we can use our TLB miss and window trap handlers safely. */
setup_tba();
@ -1904,7 +1913,9 @@ void __flush_tlb_all(void)
"wrpr %0, %1, %%pstate"
: "=r" (pstate)
: "i" (PSTATE_IE));
if (tlb_type == spitfire) {
if (tlb_type == hypervisor) {
sun4v_mmu_demap_all();
} else if (tlb_type == spitfire) {
for (i = 0; i < 64; i++) {
/* Spitfire Errata #32 workaround */
/* NOTE: Always runs on spitfire, so no

9
include/asm-sparc/unistd.h
View file

@ -333,6 +333,15 @@
#define NR_SYSCALLS 315
/* Sparc 32-bit only has the "setresuid32", "getresuid32" variants,
* it never had the plain ones and there is no value to adding those
* old versions into the syscall table.
*/
#define __IGNORE_setresuid
#define __IGNORE_getresuid
#define __IGNORE_setresgid
#define __IGNORE_getresgid
#ifdef __KERNEL__
#define __ARCH_WANT_IPC_PARSE_VERSION
#define __ARCH_WANT_OLD_READDIR

4
include/asm-sparc64/hypervisor.h
View file

@ -709,6 +709,10 @@ extern unsigned long sun4v_mmu_tsb_ctx0(unsigned long num_descriptions,
*/
#define HV_FAST_MMU_DEMAP_ALL 0x24
#ifndef __ASSEMBLY__
extern void sun4v_mmu_demap_all(void);
#endif
/* mmu_map_perm_addr()
* TRAP: HV_FAST_TRAP
* FUNCTION: HV_FAST_MMU_MAP_PERM_ADDR