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sh: Switch SH-5 to use CONFIG_PAGE_OFFSET. 

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2007-11-21 15:34:33 +09:00
parent 6deb6f9129
commit 36763b22be
5 changed files with 20 additions and 19 deletions
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2
arch/sh/Makefile
View File

@ -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

22
arch/sh/kernel/cpu/sh5/entry.S
View File

@ -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

8
arch/sh/kernel/head_64.S
View File

@ -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)

4
arch/sh/kernel/vmlinux_64.lds.S
View File

@ -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) {

3
arch/sh/mm/Kconfig
View File

@ -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