Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=36763b22bee56713057762bb0756e8075b5bb918
Commit: 36763b22bee56713057762bb0756e8075b5bb918
Parent: 6deb6f9129591a2386f5c125d54a22ab78fc8b61
Author: Paul Mundt <[EMAIL PROTECTED]>
AuthorDate: Wed Nov 21 15:34:33 2007 +0900
Committer: Paul Mundt <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 13:18:51 2008 +0900
sh: Switch SH-5 to use CONFIG_PAGE_OFFSET.
Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
---
arch/sh/Makefile | 2 +-
arch/sh/kernel/cpu/sh5/entry.S | 22 +++++++++++-----------
arch/sh/kernel/head_64.S | 8 ++++----
arch/sh/kernel/vmlinux_64.lds.S | 4 ++--
arch/sh/mm/Kconfig | 3 ++-
5 files changed, 20 insertions(+), 19 deletions(-)
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 15161f1..e08d4d2 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -85,7 +85,7 @@ KBUILD_IMAGE := arch/sh/boot/zImage
ifdef CONFIG_SUPERH32
LDFLAGS_vmlinux += -e _stext
else
-LDFLAGS_vmlinux += --defsym
phys_stext=_stext-$(CONFIG_CACHED_MEMORY_OFFSET) \
+LDFLAGS_vmlinux += --defsym phys_stext=_stext-$(CONFIG_PAGE_OFFSET) \
--defsym phys_stext_shmedia=phys_stext+1 \
-e phys_stext_shmedia
endif
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index 81010b9..0f65bb4 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -432,7 +432,7 @@ reset_or_panic:
synco /* TAKum03020 (but probably a good idea anyway.) */
putcon SP, DCR
/* First save r0-1 and tr0, as we need to use these */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+ movi resvec_save_area-CONFIG_PAGE_OFFSET, SP
st.q SP, 0, r0
st.q SP, 8, r1
gettr tr0, r0
@@ -442,7 +442,7 @@ reset_or_panic:
getcon EXPEVT, r0
movi RESET_CAUSE, r1
sub r1, r0, r1 /* r1=0 if reset */
- movi _stext-CONFIG_CACHED_MEMORY_OFFSET, r0
+ movi _stext-CONFIG_PAGE_OFFSET, r0
ori r0, 1, r0
ptabs r0, tr0
beqi r1, 0, tr0 /* Jump to start address if reset */
@@ -454,7 +454,7 @@ reset_or_panic:
beqi r1, 0, tr0 /* jump if single step */
/* Now jump to where we save the registers. */
- movi panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
+ movi panic_stash_regs-CONFIG_PAGE_OFFSET, r1
ptabs r1, tr0
blink tr0, r63
@@ -490,7 +490,7 @@ debug_exception:
*/
putcon SP, DCR
/* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+ movi resvec_save_area-CONFIG_PAGE_OFFSET, SP
/* With the MMU off, we are bypassing the cache, so purge any
* data that will be made stale by the following stores.
@@ -558,7 +558,7 @@ debug_interrupt:
/* Save original stack pointer into KCR1 */
synco
putcon SP, KCR1
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
+ movi resvec_save_area-CONFIG_PAGE_OFFSET, SP
ocbp SP, 0
ocbp SP, 32
synco
@@ -607,7 +607,7 @@ debug_interrupt:
movi EVENT_FAULT_NOT_TLB, r4
or SP, ZERO, r5
- movi CONFIG_CACHED_MEMORY_OFFSET, r6
+ movi CONFIG_PAGE_OFFSET, r6
add r6, r5, r5
getcon KCR1, SP
@@ -1366,7 +1366,7 @@ route_to_panic_handler:
last-chance debugging, e.g. if no output wants to go to the console.
*/
- movi panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
+ movi panic_handler - CONFIG_PAGE_OFFSET, r1
ptabs r1, tr0
pta 1f, tr1
gettr tr1, r0
@@ -1408,7 +1408,7 @@ peek_real_address_q:
andc r1, r36, r1 /* turn sr.mmu off in real mode section */
putcon r1, ssr
- movi .peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target
address */
+ movi .peek0 - CONFIG_PAGE_OFFSET, r36 /* real mode target address */
movi 1f, r37 /* virtual mode return addr */
putcon r36, spc
@@ -1457,7 +1457,7 @@ poke_real_address_q:
andc r1, r36, r1 /* turn sr.mmu off in real mode section */
putcon r1, ssr
- movi .poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target
address */
+ movi .poke0-CONFIG_PAGE_OFFSET, r36 /* real mode target address */
movi 1f, r37 /* virtual mode return addr */
putcon r36, spc
@@ -1954,7 +1954,7 @@ panic_stash_regs:
getcon SSR,r3
getcon EXPEVT,r4
/* Prepare to jump to C - physical address */
- movi panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
+ movi panic_handler-CONFIG_PAGE_OFFSET, r1
ori r1, 1, r1
ptabs r1, tr0
getcon DCR, SP
@@ -2055,7 +2055,7 @@ trap_init:
andi r19, -4, r19 /* reset MMUOFF + reserved */
/* For RESVEC exceptions we force the MMU off, which means we need the
physical address. */
- movi LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
+ movi LRESVEC_block-CONFIG_PAGE_OFFSET, r20
andi r20, -4, r20 /* reset reserved */
ori r20, 1, r20 /* set MMUOFF */
putcon r19, VBR
diff --git a/arch/sh/kernel/head_64.S b/arch/sh/kernel/head_64.S
index 55ae281..c969db5 100644
--- a/arch/sh/kernel/head_64.S
+++ b/arch/sh/kernel/head_64.S
@@ -38,9 +38,9 @@
#define MMUDR_END DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
#define MMUDR_STEP TLB_STEP
-/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
-#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
-#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
+/* Safety check : CONFIG_PAGE_OFFSET has to be a multiple of 512Mb */
+#if (CONFIG_PAGE_OFFSET & ((1UL<<29)-1))
+#error "CONFIG_PAGE_OFFSET must be a multiple of 512Mb"
#endif
/*
@@ -49,7 +49,7 @@
/* Deal safely with the case where the base of RAM is not 512Mb aligned */
#define ALIGN_512M_MASK (0xffffffffe0000000)
-#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START)
& ALIGN_512M_MASK)
+#define ALIGNED_EFFECTIVE ((CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START) &
ALIGN_512M_MASK)
#define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
#define MMUIR_TEXT_H (0x0000000000000003 | ALIGNED_EFFECTIVE)
diff --git a/arch/sh/kernel/vmlinux_64.lds.S b/arch/sh/kernel/vmlinux_64.lds.S
index f0f5771..2fd0f74 100644
--- a/arch/sh/kernel/vmlinux_64.lds.S
+++ b/arch/sh/kernel/vmlinux_64.lds.S
@@ -24,7 +24,7 @@
#include <asm/cache.h>
#include <asm/thread_info.h>
-#define LOAD_OFFSET CONFIG_CACHED_MEMORY_OFFSET
+#define LOAD_OFFSET CONFIG_PAGE_OFFSET
#include <asm-generic/vmlinux.lds.h>
OUTPUT_ARCH(sh:sh5)
@@ -34,7 +34,7 @@ OUTPUT_ARCH(sh:sh5)
ENTRY(__start)
SECTIONS
{
- . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
+ . = CONFIG_PAGE_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
_text = .; /* Text and read-only data */
.empty_zero_page : C_PHYS(.empty_zero_page) {
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 7ff26c1..2af9507 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -17,7 +17,8 @@ config MMU
config PAGE_OFFSET
hex
- default "0x80000000" if MMU
+ default "0x80000000" if MMU && SUPERH32
+ default "0x20000000" if MMU && SUPERH64
default "0x00000000"
config MEMORY_START
-
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