[RFC PATCH 4/9] powerpc/mm/book3s-64: Move _PAGE_PRESENT to the most significant bit
kbuild test robot
lkp at intel.com
Sat Feb 20 19:33:36 AEDT 2016
Hi Paul,
[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.5-rc4 next-20160219]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Paul-Mackerras-via-Linuxppc-dev/powerpc-mm-Restructure-Linux-PTE-on-Book3S-64-to-radix-format/20160220-143050
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-allmodconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=powerpc
All error/warnings (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/thread_info.h:34:0,
from include/linux/thread_info.h:54,
from include/asm-generic/preempt.h:4,
from arch/powerpc/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:59,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:35,
from include/linux/time.h:5,
from include/uapi/linux/timex.h:56,
from include/linux/timex.h:56,
from include/linux/sched.h:19,
from arch/powerpc/mm/pgtable_64.c:25:
arch/powerpc/mm/pgtable_64.c: In function 'map_kernel_page':
>> arch/powerpc/include/asm/page.h:335:35: error: incompatible types when initializing type 'long unsigned int' using type 'pgprot_t {aka struct <anonymous>}'
#define __pgprot(x) ((pgprot_t) { (x) })
^
>> arch/powerpc/mm/pgtable_64.c:110:10: note: in expansion of macro '__pgprot'
__pgprot(flags)));
^
>> arch/powerpc/mm/pgtable_64.c:143:49: error: incompatible type for argument 4 of 'htab_bolt_mapping'
if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags,
^
In file included from arch/powerpc/include/asm/mmu.h:185:0,
from arch/powerpc/include/asm/lppaca.h:36,
from arch/powerpc/include/asm/paca.h:21,
from arch/powerpc/include/asm/hw_irq.h:42,
from arch/powerpc/include/asm/irqflags.h:11,
from include/linux/irqflags.h:15,
from include/linux/spinlock.h:53,
from include/linux/seqlock.h:35,
from include/linux/time.h:5,
from include/uapi/linux/timex.h:56,
from include/linux/timex.h:56,
from include/linux/sched.h:19,
from arch/powerpc/mm/pgtable_64.c:25:
arch/powerpc/include/asm/mmu-hash64.h:358:12: note: expected 'long unsigned int' but argument is of type 'pgprot_t {aka struct <anonymous>}'
extern int htab_bolt_mapping(unsigned long vstart, unsigned long vend,
^
arch/powerpc/mm/pgtable_64.c: In function '__ioremap_at':
>> arch/powerpc/mm/pgtable_64.c:183:50: error: incompatible type for argument 3 of 'map_kernel_page'
if (map_kernel_page((unsigned long)ea+i, pa+i, flags))
^
arch/powerpc/mm/pgtable_64.c:91:5: note: expected 'pgprot_t {aka struct <anonymous>}' but argument is of type 'long unsigned int'
int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t flags)
^
vim +/htab_bolt_mapping +143 arch/powerpc/mm/pgtable_64.c
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 19 * as published by the Free Software Foundation; either version
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 20 * 2 of the License, or (at your option) any later version.
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 21 *
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 22 */
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 23
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 24 #include <linux/signal.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 @25 #include <linux/sched.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 26 #include <linux/kernel.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 27 #include <linux/errno.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 28 #include <linux/string.h>
66b15db6 arch/powerpc/mm/pgtable_64.c Paul Gortmaker 2011-05-27 29 #include <linux/export.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 30 #include <linux/types.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 31 #include <linux/mman.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 32 #include <linux/mm.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 33 #include <linux/swap.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 34 #include <linux/stddef.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 35 #include <linux/vmalloc.h>
95f72d1e arch/powerpc/mm/pgtable_64.c Yinghai Lu 2010-07-12 36 #include <linux/memblock.h>
5a0e3ad6 arch/powerpc/mm/pgtable_64.c Tejun Heo 2010-03-24 37 #include <linux/slab.h>
06743521 arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2014-11-05 38 #include <linux/hugetlb.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 39
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 40 #include <asm/pgalloc.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 41 #include <asm/page.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 42 #include <asm/prom.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 43 #include <asm/io.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 44 #include <asm/mmu_context.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 45 #include <asm/pgtable.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 46 #include <asm/mmu.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 47 #include <asm/smp.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 48 #include <asm/machdep.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 49 #include <asm/tlb.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 50 #include <asm/processor.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 51 #include <asm/cputable.h>
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 52 #include <asm/sections.h>
5e203d68 arch/powerpc/mm/pgtable_64.c Stephen Rothwell 2006-09-25 53 #include <asm/firmware.h>
68cf0d64 arch/powerpc/mm/pgtable_64.c Anton Blanchard 2014-09-17 54 #include <asm/dma.h>
800fc3ee arch/powerpc/mm/pgtable_64.c David Gibson 2005-11-16 55
800fc3ee arch/powerpc/mm/pgtable_64.c David Gibson 2005-11-16 56 #include "mmu_decl.h"
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 57
9e813308 arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2014-08-13 58 #define CREATE_TRACE_POINTS
9e813308 arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2014-08-13 59 #include <trace/events/thp.h>
9e813308 arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2014-08-13 60
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 61 /* Some sanity checking */
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 62 #if TASK_SIZE_USER64 > PGTABLE_RANGE
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 63 #error TASK_SIZE_USER64 exceeds pagetable range
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 64 #endif
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 65
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 66 #ifdef CONFIG_PPC_STD_MMU_64
af81d787 arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2013-03-13 67 #if TASK_SIZE_USER64 > (1UL << (ESID_BITS + SID_SHIFT))
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 68 #error TASK_SIZE_USER64 exceeds user VSID range
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 69 #endif
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 70 #endif
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 71
78f1dbde arch/powerpc/mm/pgtable_64.c Aneesh Kumar K.V 2012-09-10 72 unsigned long ioremap_bot = IOREMAP_BASE;
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 73
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 74 #ifdef CONFIG_PPC_MMU_NOHASH
7d176221 arch/powerpc/mm/pgtable_64.c Scott Wood 2014-08-01 75 static __ref void *early_alloc_pgtable(unsigned long size)
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 76 {
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 77 void *pt;
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 78
10239733 arch/powerpc/mm/pgtable_64.c Anton Blanchard 2014-09-17 79 pt = __va(memblock_alloc_base(size, size, __pa(MAX_DMA_ADDRESS)));
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 80 memset(pt, 0, size);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 81
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 82 return pt;
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 83 }
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 84 #endif /* CONFIG_PPC_MMU_NOHASH */
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 85
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 86 /*
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 87 * map_kernel_page currently only called by __ioremap
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 88 * map_kernel_page adds an entry to the ioremap page table
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 89 * and adds an entry to the HPT, possibly bolting it
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 90 */
be212f32 arch/powerpc/mm/pgtable_64.c Paul Mackerras via Linuxppc-dev 2016-02-20 91 int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t flags)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 92 {
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 93 pgd_t *pgdp;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 94 pud_t *pudp;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 95 pmd_t *pmdp;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 96 pte_t *ptep;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 97
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 98 if (slab_is_available()) {
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 99 pgdp = pgd_offset_k(ea);
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 100 pudp = pud_alloc(&init_mm, pgdp, ea);
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 101 if (!pudp)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 102 return -ENOMEM;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 103 pmdp = pmd_alloc(&init_mm, pudp, ea);
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 104 if (!pmdp)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 105 return -ENOMEM;
23fd0775 arch/powerpc/mm/pgtable_64.c Paul Mackerras 2005-10-31 106 ptep = pte_alloc_kernel(pmdp, ea);
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 107 if (!ptep)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 108 return -ENOMEM;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 109 set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 @110 __pgprot(flags)));
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 111 } else {
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 112 #ifdef CONFIG_PPC_MMU_NOHASH
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 113 pgdp = pgd_offset_k(ea);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 114 #ifdef PUD_TABLE_SIZE
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 115 if (pgd_none(*pgdp)) {
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 116 pudp = early_alloc_pgtable(PUD_TABLE_SIZE);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 117 BUG_ON(pudp == NULL);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 118 pgd_populate(&init_mm, pgdp, pudp);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 119 }
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 120 #endif /* PUD_TABLE_SIZE */
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 121 pudp = pud_offset(pgdp, ea);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 122 if (pud_none(*pudp)) {
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 123 pmdp = early_alloc_pgtable(PMD_TABLE_SIZE);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 124 BUG_ON(pmdp == NULL);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 125 pud_populate(&init_mm, pudp, pmdp);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 126 }
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 127 pmdp = pmd_offset(pudp, ea);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 128 if (!pmd_present(*pmdp)) {
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 129 ptep = early_alloc_pgtable(PAGE_SIZE);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 130 BUG_ON(ptep == NULL);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 131 pmd_populate_kernel(&init_mm, pmdp, ptep);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 132 }
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 133 ptep = pte_offset_kernel(pmdp, ea);
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 134 set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT,
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 135 __pgprot(flags)));
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 136 #else /* CONFIG_PPC_MMU_NOHASH */
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 137 /*
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 138 * If the mm subsystem is not fully up, we cannot create a
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 139 * linux page table entry for this mapping. Simply bolt an
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 140 * entry in the hardware page table.
3c726f8d arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2005-11-07 141 *
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 142 */
1189be65 arch/powerpc/mm/pgtable_64.c Paul Mackerras 2007-10-11 @143 if (htab_bolt_mapping(ea, ea + PAGE_SIZE, pa, flags,
1189be65 arch/powerpc/mm/pgtable_64.c Paul Mackerras 2007-10-11 144 mmu_io_psize, mmu_kernel_ssize)) {
77ac166f arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2005-11-10 145 printk(KERN_ERR "Failed to do bolted mapping IO "
77ac166f arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2005-11-10 146 "memory at %016lx !\n", pa);
77ac166f arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2005-11-10 147 return -ENOMEM;
77ac166f arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2005-11-10 148 }
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 149 #endif /* !CONFIG_PPC_MMU_NOHASH */
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 150 }
47ce8af4 arch/powerpc/mm/pgtable_64.c Scott Wood 2013-10-11 151
47ce8af4 arch/powerpc/mm/pgtable_64.c Scott Wood 2013-10-11 152 smp_wmb();
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 153 return 0;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 154 }
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 155
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 156
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 157 /**
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 158 * __ioremap_at - Low level function to establish the page tables
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 159 * for an IO mapping
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 160 */
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 161 void __iomem * __ioremap_at(phys_addr_t pa, void *ea, unsigned long size,
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 162 unsigned long flags)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 163 {
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 164 unsigned long i;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 165
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 166 /* Make sure we have the base flags */
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 167 if ((flags & _PAGE_PRESENT) == 0)
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 168 flags |= pgprot_val(PAGE_KERNEL);
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 169
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 170 /* Non-cacheable page cannot be coherent */
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 171 if (flags & _PAGE_NO_CACHE)
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 172 flags &= ~_PAGE_COHERENT;
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 173
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 174 /* We don't support the 4K PFN hack with ioremap */
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 175 if (flags & _PAGE_4K_PFN)
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 176 return NULL;
a1f242ff arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2008-07-23 177
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 178 WARN_ON(pa & ~PAGE_MASK);
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 179 WARN_ON(((unsigned long)ea) & ~PAGE_MASK);
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 180 WARN_ON(size & ~PAGE_MASK);
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 181
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 182 for (i = 0; i < size; i += PAGE_SIZE)
a245067e arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2009-07-23 @183 if (map_kernel_page((unsigned long)ea+i, pa+i, flags))
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 184 return NULL;
14cf11af arch/powerpc/mm/pgtable64.c Paul Mackerras 2005-09-26 185
3d5134ee arch/powerpc/mm/pgtable_64.c Benjamin Herrenschmidt 2007-06-04 186 return (void __iomem *)ea;
:::::: The code at line 143 was first introduced by commit
:::::: 1189be6508d45183013ddb82b18f4934193de274 [POWERPC] Use 1TB segments
:::::: TO: Paul Mackerras <paulus at samba.org>
:::::: CC: Paul Mackerras <paulus at samba.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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