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authorPaul Mackerras <paulus@samba.org>2006-10-04 01:02:27 -0400
committerPaul Mackerras <paulus@samba.org>2006-10-04 01:02:27 -0400
commitc730f5b621afa33e9f4939da9078669162ebff4e (patch)
treeac78a2cea0fbf365ef659c26ab192e263debb544 /arch/powerpc/mm
parent0a730ae59960165ae50de3284fb50316d1755d98 (diff)
parent80a544cebca5f28397020332e21e04d639a18943 (diff)
Merge branch 'master' of git://oak/home/sfr/kernels/iseries/work
Diffstat (limited to 'arch/powerpc/mm')
-rw-r--r--arch/powerpc/mm/pgtable_64.c29
-rw-r--r--arch/powerpc/mm/slb_low.S3
2 files changed, 10 insertions, 22 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index b1da03165496..ac64f4aaa509 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -63,32 +63,13 @@
63#include <asm/iommu.h> 63#include <asm/iommu.h>
64#include <asm/abs_addr.h> 64#include <asm/abs_addr.h>
65#include <asm/vdso.h> 65#include <asm/vdso.h>
66#include <asm/firmware.h>
66 67
67#include "mmu_decl.h" 68#include "mmu_decl.h"
68 69
69unsigned long ioremap_bot = IMALLOC_BASE; 70unsigned long ioremap_bot = IMALLOC_BASE;
70static unsigned long phbs_io_bot = PHBS_IO_BASE; 71static unsigned long phbs_io_bot = PHBS_IO_BASE;
71 72
72#ifdef CONFIG_PPC_ISERIES
73
74void __iomem *ioremap(unsigned long addr, unsigned long size)
75{
76 return (void __iomem *)addr;
77}
78
79extern void __iomem *__ioremap(unsigned long addr, unsigned long size,
80 unsigned long flags)
81{
82 return (void __iomem *)addr;
83}
84
85void iounmap(volatile void __iomem *addr)
86{
87 return;
88}
89
90#else
91
92/* 73/*
93 * map_io_page currently only called by __ioremap 74 * map_io_page currently only called by __ioremap
94 * map_io_page adds an entry to the ioremap page table 75 * map_io_page adds an entry to the ioremap page table
@@ -161,6 +142,9 @@ void __iomem * __ioremap(unsigned long addr, unsigned long size,
161 unsigned long pa, ea; 142 unsigned long pa, ea;
162 void __iomem *ret; 143 void __iomem *ret;
163 144
145 if (firmware_has_feature(FW_FEATURE_ISERIES))
146 return (void __iomem *)addr;
147
164 /* 148 /*
165 * Choose an address to map it to. 149 * Choose an address to map it to.
166 * Once the imalloc system is running, we use it. 150 * Once the imalloc system is running, we use it.
@@ -255,6 +239,9 @@ void iounmap(volatile void __iomem *token)
255{ 239{
256 void *addr; 240 void *addr;
257 241
242 if (firmware_has_feature(FW_FEATURE_ISERIES))
243 return;
244
258 if (!mem_init_done) 245 if (!mem_init_done)
259 return; 246 return;
260 247
@@ -315,8 +302,6 @@ int iounmap_explicit(volatile void __iomem *start, unsigned long size)
315 return 0; 302 return 0;
316} 303}
317 304
318#endif
319
320EXPORT_SYMBOL(ioremap); 305EXPORT_SYMBOL(ioremap);
321EXPORT_SYMBOL(__ioremap); 306EXPORT_SYMBOL(__ioremap);
322EXPORT_SYMBOL(iounmap); 307EXPORT_SYMBOL(iounmap);
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S
index dbc1abbde038..b10e4707d7c1 100644
--- a/arch/powerpc/mm/slb_low.S
+++ b/arch/powerpc/mm/slb_low.S
@@ -21,6 +21,7 @@
21#include <asm/page.h> 21#include <asm/page.h>
22#include <asm/mmu.h> 22#include <asm/mmu.h>
23#include <asm/pgtable.h> 23#include <asm/pgtable.h>
24#include <asm/firmware.h>
24 25
25/* void slb_allocate_realmode(unsigned long ea); 26/* void slb_allocate_realmode(unsigned long ea);
26 * 27 *
@@ -183,6 +184,7 @@ slb_finish_load:
183 * dont have any LRU information to help us choose a slot. 184 * dont have any LRU information to help us choose a slot.
184 */ 185 */
185#ifdef CONFIG_PPC_ISERIES 186#ifdef CONFIG_PPC_ISERIES
187BEGIN_FW_FTR_SECTION
186 /* 188 /*
187 * On iSeries, the "bolted" stack segment can be cast out on 189 * On iSeries, the "bolted" stack segment can be cast out on
188 * shared processor switch so we need to check for a miss on 190 * shared processor switch so we need to check for a miss on
@@ -194,6 +196,7 @@ slb_finish_load:
194 li r10,SLB_NUM_BOLTED-1 /* Stack goes in last bolted slot */ 196 li r10,SLB_NUM_BOLTED-1 /* Stack goes in last bolted slot */
195 cmpld r9,r3 197 cmpld r9,r3
196 beq 3f 198 beq 3f
199END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
197#endif /* CONFIG_PPC_ISERIES */ 200#endif /* CONFIG_PPC_ISERIES */
198 201
199 ld r10,PACASTABRR(r13) 202 ld r10,PACASTABRR(r13)