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authorDavid S. Miller <davem@sunset.davemloft.net>2005-09-20 15:18:38 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2005-09-20 15:18:38 -0400
commit729b4f7de68191478b20fab19a6d0c6b8c4380c9 (patch)
treec3515037d7797643a6f83e2331ab9d2cd1dd1f64 /include/asm-sparc64/pgtable.h
parent6a9b490d5fd7f23c5bcd75f970e01633ad3136e3 (diff)
[SPARC64]: Verify vmalloc TLB misses more strictly.
Arrange the modules, OBP, and vmalloc areas such that a range verification can be done quite minimally. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/pgtable.h')
-rw-r--r--include/asm-sparc64/pgtable.h20
1 files changed, 11 insertions, 9 deletions
diff --git a/include/asm-sparc64/pgtable.h b/include/asm-sparc64/pgtable.h
index a2b4f5ed4625..a297f6144f0f 100644
--- a/include/asm-sparc64/pgtable.h
+++ b/include/asm-sparc64/pgtable.h
@@ -24,21 +24,23 @@
24#include <asm/processor.h> 24#include <asm/processor.h>
25#include <asm/const.h> 25#include <asm/const.h>
26 26
27/* The kernel image occupies 0x4000000 to 0x1000000 (4MB --> 16MB). 27/* The kernel image occupies 0x4000000 to 0x1000000 (4MB --> 32MB).
28 * The page copy blockops use 0x1000000 to 0x18000000 (16MB --> 24MB). 28 * The page copy blockops can use 0x2000000 to 0x10000000.
29 * The PROM resides in an area spanning 0xf0000000 to 0x100000000. 29 * The PROM resides in an area spanning 0xf0000000 to 0x100000000.
30 * The vmalloc area spans 0x140000000 to 0x200000000. 30 * The vmalloc area spans 0x100000000 to 0x200000000.
31 * Since modules need to be in the lowest 32-bits of the address space,
32 * we place them right before the OBP area from 0x10000000 to 0xf0000000.
31 * There is a single static kernel PMD which maps from 0x0 to address 33 * There is a single static kernel PMD which maps from 0x0 to address
32 * 0x400000000. 34 * 0x400000000.
33 */ 35 */
34#define TLBTEMP_BASE _AC(0x0000000001000000,UL) 36#define TLBTEMP_BASE _AC(0x0000000002000000,UL)
35#define MODULES_VADDR _AC(0x0000000002000000,UL) 37#define MODULES_VADDR _AC(0x0000000010000000,UL)
36#define MODULES_LEN _AC(0x000000007e000000,UL) 38#define MODULES_LEN _AC(0x00000000e0000000,UL)
37#define MODULES_END _AC(0x0000000080000000,UL) 39#define MODULES_END _AC(0x00000000f0000000,UL)
38#define VMALLOC_START _AC(0x0000000140000000,UL)
39#define VMALLOC_END _AC(0x0000000200000000,UL)
40#define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL) 40#define LOW_OBP_ADDRESS _AC(0x00000000f0000000,UL)
41#define HI_OBP_ADDRESS _AC(0x0000000100000000,UL) 41#define HI_OBP_ADDRESS _AC(0x0000000100000000,UL)
42#define VMALLOC_START _AC(0x0000000100000000,UL)
43#define VMALLOC_END _AC(0x0000000200000000,UL)
42 44
43/* XXX All of this needs to be rethought so we can take advantage 45/* XXX All of this needs to be rethought so we can take advantage
44 * XXX cheetah's full 64-bit virtual address space, ie. no more hole 46 * XXX cheetah's full 64-bit virtual address space, ie. no more hole