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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-17 08:43:02 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-12-17 08:43:02 -0800
commitde29cba9c9bb2dc35803e8d5c968a454e297b8f3 (patch)
tree1e4d0e1150b5ae2bea9a5810bec97d18d07644c5 /arch
parent104064b54955addac0fcf9ceb6c68569f2bed6ab (diff)
parente6e0a94573fb33e6e62b848a24864e6864c45464 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* 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.
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc64/kernel/entry.S12
-rw-r--r--arch/sparc64/mm/init.c29
2 files changed, 32 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index c9b0d7af64a..ea257e82836 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -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
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index e18ccf85224..fbeb55d71e7 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -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