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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 08:52:50 +1100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 08:52:50 +1100
commite189f3495c4e30fc84fc9241096edf3932e23439 (patch)
tree5916c89ace81537a02ae01869386ba6caafdab9c /arch/sh/mm/pmb.c
parentf4798748dee00c807a63f5518f08b3df161e0f6d (diff)
parent6582d7b7376aa587d74b08c74457dc28abc1a9fa (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (197 commits) sh: add spi header and r2d platform data V3 sh: update r7780rp interrupt code sh: remove consistent alloc stuff from the machine vector sh: use declared coherent memory for dreamcast pci ethernet adapter sh: declared coherent memory support V2 sh: Add support for SDK7780 board. sh: constify function pointer tables sh: Kill off -traditional for linker script. cdrom: Add support for Sega Dreamcast GD-ROM. sh: Kill off hs7751rvoip reference from arch/sh/Kconfig. sh: Drop r7780rp_defconfig, use r7780mp_defconfig as kbuild default. sh: Kill off dead HS771RVoIP board support. sh: r7785rp: Fix up DECLARE_INTC_DESC() arg mismatch. sh: r7785rp: Hook up the rest of the HL7785 FPGA IRQ vectors. sh: r2d - enable sm501 usb host function sh: remove voyagergx sh: r2d - add lcd planel timings to sm501 platform data sh: Add OHCI and UDC platform devices for SH7720. sh: intc - remove default interrupt priority tables sh: Correct pte size mismatch for X2 TLB. ...
Diffstat (limited to 'arch/sh/mm/pmb.c')
-rw-r--r--arch/sh/mm/pmb.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 1d45b82f0a6..ab81c602295 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -27,6 +27,7 @@
#include <asm/pgtable.h>
#include <asm/mmu.h>
#include <asm/io.h>
+#include <asm/mmu_context.h>
#define NR_PMB_ENTRIES 16
@@ -162,18 +163,18 @@ repeat:
return 0;
}
-int set_pmb_entry(struct pmb_entry *pmbe)
+int __uses_jump_to_uncached set_pmb_entry(struct pmb_entry *pmbe)
{
int ret;
- jump_to_P2();
+ jump_to_uncached();
ret = __set_pmb_entry(pmbe->vpn, pmbe->ppn, pmbe->flags, &pmbe->entry);
- back_to_P1();
+ back_to_cached();
return ret;
}
-void clear_pmb_entry(struct pmb_entry *pmbe)
+void __uses_jump_to_uncached clear_pmb_entry(struct pmb_entry *pmbe)
{
unsigned int entry = pmbe->entry;
unsigned long addr;
@@ -187,7 +188,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
entry >= NR_PMB_ENTRIES))
return;
- jump_to_P2();
+ jump_to_uncached();
/* Clear V-bit */
addr = mk_pmb_addr(entry);
@@ -196,7 +197,7 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
addr = mk_pmb_data(entry);
ctrl_outl(ctrl_inl(addr) & ~PMB_V, addr);
- back_to_P1();
+ back_to_cached();
clear_bit(entry, &pmb_map);
}
@@ -301,17 +302,17 @@ static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
pmbe->entry = PMB_NO_ENTRY;
}
-static int __init pmb_init(void)
+static int __uses_jump_to_uncached pmb_init(void)
{
unsigned int nr_entries = ARRAY_SIZE(pmb_init_map);
- unsigned int entry;
+ unsigned int entry, i;
BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES));
pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), 0,
SLAB_PANIC, pmb_cache_ctor);
- jump_to_P2();
+ jump_to_uncached();
/*
* Ordering is important, P2 must be mapped in the PMB before we
@@ -329,7 +330,12 @@ static int __init pmb_init(void)
/* PMB.SE and UB[7] */
ctrl_outl((1 << 31) | (1 << 7), PMB_PASCR);
- back_to_P1();
+ /* Flush out the TLB */
+ i = ctrl_inl(MMUCR);
+ i |= MMUCR_TI;
+ ctrl_outl(i, MMUCR);
+
+ back_to_cached();
return 0;
}