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authorMichal Simek <monstr@monstr.eu>2010-02-08 16:41:38 +0100
committerMichal Simek <monstr@monstr.eu>2012-03-23 09:28:18 +0100
commit95b0f9ea66661681f6ae081ea28416744d622c07 (patch)
treec4d387b9e4a5add47945be3036c7e5682ea5330c /arch/microblaze/include
parent3a1d26769f61fe8a1f517a66dfcee935a76fd61c (diff)
downloadlinux-95b0f9ea66661681f6ae081ea28416744d622c07.tar.gz
microblaze: Improve TLB calculation for small systems
Systems with small amount of memory need to be handled differently. Linux can't allocate the whole 32MB with two TLBs because then there is no MMU protection. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/include')
-rw-r--r--arch/microblaze/include/asm/setup.h3
-rw-r--r--arch/microblaze/include/asm/system.h1
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 6c72ed7eba9..9f195c09473 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -39,7 +39,8 @@ extern void of_platform_reset_gpio_probe(void);
void time_init(void);
void init_IRQ(void);
void machine_early_init(const char *cmdline, unsigned int ram,
- unsigned int fdt, unsigned int msr);
+ unsigned int fdt, unsigned int msr, unsigned int tlb0,
+ unsigned int tlb1);
void machine_restart(char *cmd);
void machine_shutdown(void);
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
index 5a433cbaafb..01228d2b135 100644
--- a/arch/microblaze/include/asm/system.h
+++ b/arch/microblaze/include/asm/system.h
@@ -83,6 +83,7 @@ void default_idle(void);
void free_init_pages(char *what, unsigned long begin, unsigned long end);
void free_initmem(void);
extern char *klimit;
+extern unsigned long kernel_tlb;
extern void ret_from_fork(void);
extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);