aboutsummaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/mmu.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 19:54:33 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-28 19:54:33 -0500
commit3c92ec8ae91ecf59d88c798301833d7cf83f2179 (patch)
tree08a38cd3523c42bd49882f17cd501fd879e7ca1c /arch/powerpc/include/asm/mmu.h
parentc4c9f0183b7c4e97836e8fecbb67898b06c47e78 (diff)
parentca9153a3a2a7556d091dfe080e42b0e67881fff6 (diff)
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (144 commits) powerpc/44x: Support 16K/64K base page sizes on 44x powerpc: Force memory size to be a multiple of PAGE_SIZE powerpc/32: Wire up the trampoline code for kdump powerpc/32: Add the ability for a classic ppc kernel to be loaded at 32M powerpc/32: Allow __ioremap on RAM addresses for kdump kernel powerpc/32: Setup OF properties for kdump powerpc/32/kdump: Implement crash_setup_regs() using ppc_save_regs() powerpc: Prepare xmon_save_regs for use with kdump powerpc: Remove default kexec/crash_kernel ops assignments powerpc: Make default kexec/crash_kernel ops implicit powerpc: Setup OF properties for ppc32 kexec powerpc/pseries: Fix cpu hotplug powerpc: Fix KVM build on ppc440 powerpc/cell: add QPACE as a separate Cell platform powerpc/cell: fix build breakage with CONFIG_SPUFS disabled powerpc/mpc5200: fix error paths in PSC UART probe function powerpc/mpc5200: add rts/cts handling in PSC UART driver powerpc/mpc5200: Make PSC UART driver update serial errors counters powerpc/mpc5200: Remove obsolete code from mpc5200 MDIO driver powerpc/mpc5200: Add MDMA/UDMA support to MPC5200 ATA driver ... Fix trivial conflict in drivers/char/Makefile as per Paul's directions
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
-rw-r--r--arch/powerpc/include/asm/mmu.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 4c0e1b4f975c..6e7639911318 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -2,6 +2,63 @@
2#define _ASM_POWERPC_MMU_H_ 2#define _ASM_POWERPC_MMU_H_
3#ifdef __KERNEL__ 3#ifdef __KERNEL__
4 4
5#include <asm/asm-compat.h>
6#include <asm/feature-fixups.h>
7
8/*
9 * MMU features bit definitions
10 */
11
12/*
13 * First half is MMU families
14 */
15#define MMU_FTR_HPTE_TABLE ASM_CONST(0x00000001)
16#define MMU_FTR_TYPE_8xx ASM_CONST(0x00000002)
17#define MMU_FTR_TYPE_40x ASM_CONST(0x00000004)
18#define MMU_FTR_TYPE_44x ASM_CONST(0x00000008)
19#define MMU_FTR_TYPE_FSL_E ASM_CONST(0x00000010)
20
21/*
22 * This is individual features
23 */
24
25/* Enable use of high BAT registers */
26#define MMU_FTR_USE_HIGH_BATS ASM_CONST(0x00010000)
27
28/* Enable >32-bit physical addresses on 32-bit processor, only used
29 * by CONFIG_6xx currently as BookE supports that from day 1
30 */
31#define MMU_FTR_BIG_PHYS ASM_CONST(0x00020000)
32
33/* Enable use of broadcast TLB invalidations. We don't always set it
34 * on processors that support it due to other constraints with the
35 * use of such invalidations
36 */
37#define MMU_FTR_USE_TLBIVAX_BCAST ASM_CONST(0x00040000)
38
39/* Enable use of tlbilx invalidate-by-PID variant.
40 */
41#define MMU_FTR_USE_TLBILX_PID ASM_CONST(0x00080000)
42
43/* This indicates that the processor cannot handle multiple outstanding
44 * broadcast tlbivax or tlbsync. This makes the code use a spinlock
45 * around such invalidate forms.
46 */
47#define MMU_FTR_LOCK_BCAST_INVAL ASM_CONST(0x00100000)
48
49#ifndef __ASSEMBLY__
50#include <asm/cputable.h>
51
52static inline int mmu_has_feature(unsigned long feature)
53{
54 return (cur_cpu_spec->mmu_features & feature);
55}
56
57extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup;
58
59#endif /* !__ASSEMBLY__ */
60
61
5#ifdef CONFIG_PPC64 62#ifdef CONFIG_PPC64
6/* 64-bit classic hash table MMU */ 63/* 64-bit classic hash table MMU */
7# include <asm/mmu-hash64.h> 64# include <asm/mmu-hash64.h>