xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

Browse Source 
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (185 commits)
  powerpc: fix compile error with 85xx/p1010rdb.c
  powerpc: fix compile error with 85xx/p1023_rds.c
  powerpc/fsl: add MSI support for the Freescale hypervisor
  arch/powerpc/sysdev/fsl_rmu.c: introduce missing kfree
  powerpc/fsl: Add support for Integrated Flash Controller
  powerpc/fsl: update compatiable on fsl 16550 uart nodes
  powerpc/85xx: fix PCI and localbus properties in p1022ds.dts
  powerpc/85xx: re-enable ePAPR byte channel driver in corenet32_smp_defconfig
  powerpc/fsl: Update defconfigs to enable some standard FSL HW features
  powerpc: Add TBI PHY node to first MDIO bus
  sbc834x: put full compat string in board match check
  powerpc/fsl-pci: Allow 64-bit PCIe devices to DMA to any memory address
  powerpc: Fix unpaired probe_hcall_entry and probe_hcall_exit
  offb: Fix setting of the pseudo-palette for >8bpp
  offb: Add palette hack for qemu "standard vga" framebuffer
  offb: Fix bug in calculating requested vram size
  powerpc/boot: Change the WARN to INFO for boot wrapper overlap message
  powerpc/44x: Fix build error on currituck platform
  powerpc/boot: Change the load address for the wrapper to fit the kernel
  powerpc/44x: Enable CRASH_DUMP for 440x
  ...

Fix up a trivial conflict in arch/powerpc/include/asm/cputime.h due to
the additional sparse-checking code for cputime_t.
This commit is contained in:
Linus Torvalds
2012-01-06 17:58:22 -08:00
parent 9753dfe19a ef88e3911c
commit e4e88f31bc
388 changed files with 21757 additions and 16278 deletions
Download Patch File Download Diff File Expand all files Collapse all files

116
arch/powerpc/mm/hugetlbpage.c
View File

@@ -29,22 +29,22 @@ unsigned int HPAGE_SHIFT;
/*
* Tracks gpages after the device tree is scanned and before the
* huge_boot_pages list is ready. On 64-bit implementations, this is
* just used to track 16G pages and so is a single array. 32-bit
* implementations may have more than one gpage size due to limitations
* of the memory allocators, so we need multiple arrays
* huge_boot_pages list is ready. On non-Freescale implementations, this is
* just used to track 16G pages and so is a single array. FSL-based
* implementations may have more than one gpage size, so we need multiple
* arrays
*/
#ifdef CONFIG_PPC64
#define MAX_NUMBER_GPAGES 1024
static u64 gpage_freearray[MAX_NUMBER_GPAGES];
static unsigned nr_gpages;
#else
#ifdef CONFIG_PPC_FSL_BOOK3E
#define MAX_NUMBER_GPAGES 128
struct psize_gpages {
u64 gpage_list[MAX_NUMBER_GPAGES];
unsigned int nr_gpages;
};
static struct psize_gpages gpage_freearray[MMU_PAGE_COUNT];
#else
#define MAX_NUMBER_GPAGES 1024
static u64 gpage_freearray[MAX_NUMBER_GPAGES];
static unsigned nr_gpages;
#endif
static inline int shift_to_mmu_psize(unsigned int shift)
@@ -115,12 +115,12 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
struct kmem_cache *cachep;
pte_t *new;
#ifdef CONFIG_PPC64
cachep = PGT_CACHE(pdshift - pshift);
#else
#ifdef CONFIG_PPC_FSL_BOOK3E
int i;
int num_hugepd = 1 << (pshift - pdshift);
cachep = hugepte_cache;
#else
cachep = PGT_CACHE(pdshift - pshift);
#endif
new = kmem_cache_zalloc(cachep, GFP_KERNEL|__GFP_REPEAT);
@@ -132,12 +132,7 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
return -ENOMEM;
spin_lock(&mm->page_table_lock);
#ifdef CONFIG_PPC64
if (!hugepd_none(*hpdp))
kmem_cache_free(cachep, new);
else
hpdp->pd = ((unsigned long)new & ~PD_HUGE) | pshift;
#else
#ifdef CONFIG_PPC_FSL_BOOK3E
/*
* We have multiple higher-level entries that point to the same
* actual pte location. Fill in each as we go and backtrack on error.
@@ -156,11 +151,28 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp,
hpdp->pd = 0;
kmem_cache_free(cachep, new);
}
#else
if (!hugepd_none(*hpdp))
kmem_cache_free(cachep, new);
else
hpdp->pd = ((unsigned long)new & ~PD_HUGE) | pshift;
#endif
spin_unlock(&mm->page_table_lock);
return 0;
}
/*
* These macros define how to determine which level of the page table holds
* the hpdp.
*/
#ifdef CONFIG_PPC_FSL_BOOK3E
#define HUGEPD_PGD_SHIFT PGDIR_SHIFT
#define HUGEPD_PUD_SHIFT PUD_SHIFT
#else
#define HUGEPD_PGD_SHIFT PUD_SHIFT
#define HUGEPD_PUD_SHIFT PMD_SHIFT
#endif
pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz)
{
pgd_t *pg;
@@ -173,12 +185,13 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz
addr &= ~(sz-1);
pg = pgd_offset(mm, addr);
if (pshift >= PUD_SHIFT) {
if (pshift >= HUGEPD_PGD_SHIFT) {
hpdp = (hugepd_t *)pg;
} else {
pdshift = PUD_SHIFT;
pu = pud_alloc(mm, pg, addr);
if (pshift >= PMD_SHIFT) {
if (pshift >= HUGEPD_PUD_SHIFT) {
hpdp = (hugepd_t *)pu;
} else {
pdshift = PMD_SHIFT;
@@ -198,7 +211,7 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr, unsigned long sz
return hugepte_offset(hpdp, addr, pdshift);
}
#ifdef CONFIG_PPC32
#ifdef CONFIG_PPC_FSL_BOOK3E
/* Build list of addresses of gigantic pages. This function is used in early
* boot before the buddy or bootmem allocator is setup.
*/
@@ -318,7 +331,7 @@ void __init reserve_hugetlb_gpages(void)
}
}
#else /* PPC64 */
#else /* !PPC_FSL_BOOK3E */
/* Build list of addresses of gigantic pages. This function is used in early
* boot before the buddy or bootmem allocator is setup.
@@ -356,7 +369,7 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep)
return 0;
}
#ifdef CONFIG_PPC32
#ifdef CONFIG_PPC_FSL_BOOK3E
#define HUGEPD_FREELIST_SIZE \
((PAGE_SIZE - sizeof(struct hugepd_freelist)) / sizeof(pte_t))
@@ -416,11 +429,11 @@ static void free_hugepd_range(struct mmu_gather *tlb, hugepd_t *hpdp, int pdshif
unsigned long pdmask = ~((1UL << pdshift) - 1);
unsigned int num_hugepd = 1;
#ifdef CONFIG_PPC64
unsigned int shift = hugepd_shift(*hpdp);
#else
/* Note: On 32-bit the hpdp may be the first of several */
#ifdef CONFIG_PPC_FSL_BOOK3E
/* Note: On fsl the hpdp may be the first of several */
num_hugepd = (1 << (hugepd_shift(*hpdp) - pdshift));
#else
unsigned int shift = hugepd_shift(*hpdp);
#endif
start &= pdmask;
@@ -438,10 +451,11 @@ static void free_hugepd_range(struct mmu_gather *tlb, hugepd_t *hpdp, int pdshif
hpdp->pd = 0;
tlb->need_flush = 1;
#ifdef CONFIG_PPC64
pgtable_free_tlb(tlb, hugepte, pdshift - shift);
#else
#ifdef CONFIG_PPC_FSL_BOOK3E
hugepd_free(tlb, hugepte);
#else
pgtable_free_tlb(tlb, hugepte, pdshift - shift);
#endif
}
@@ -454,14 +468,23 @@ static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
unsigned long start;
start = addr;
pmd = pmd_offset(pud, addr);
do {
pmd = pmd_offset(pud, addr);
next = pmd_addr_end(addr, end);
if (pmd_none(*pmd))
continue;
#ifdef CONFIG_PPC_FSL_BOOK3E
/*
* Increment next by the size of the huge mapping since
* there may be more than one entry at this level for a
* single hugepage, but all of them point to
* the same kmem cache that holds the hugepte.
*/
next = addr + (1 << hugepd_shift(*(hugepd_t *)pmd));
#endif
free_hugepd_range(tlb, (hugepd_t *)pmd, PMD_SHIFT,
addr, next, floor, ceiling);
} while (pmd++, addr = next, addr != end);
} while (addr = next, addr != end);
start &= PUD_MASK;
if (start < floor)
@@ -488,8 +511,8 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
unsigned long start;
start = addr;
pud = pud_offset(pgd, addr);
do {
pud = pud_offset(pgd, addr);
next = pud_addr_end(addr, end);
if (!is_hugepd(pud)) {
if (pud_none_or_clear_bad(pud))
@@ -497,10 +520,19 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
hugetlb_free_pmd_range(tlb, pud, addr, next, floor,
ceiling);
} else {
#ifdef CONFIG_PPC_FSL_BOOK3E
/*
* Increment next by the size of the huge mapping since
* there may be more than one entry at this level for a
* single hugepage, but all of them point to
* the same kmem cache that holds the hugepte.
*/
next = addr + (1 << hugepd_shift(*(hugepd_t *)pud));
#endif
free_hugepd_range(tlb, (hugepd_t *)pud, PUD_SHIFT,
addr, next, floor, ceiling);
}
} while (pud++, addr = next, addr != end);
} while (addr = next, addr != end);
start &= PGDIR_MASK;
if (start < floor)
@@ -555,12 +587,12 @@ void hugetlb_free_pgd_range(struct mmu_gather *tlb,
continue;
hugetlb_free_pud_range(tlb, pgd, addr, next, floor, ceiling);
} else {
#ifdef CONFIG_PPC32
#ifdef CONFIG_PPC_FSL_BOOK3E
/*
* Increment next by the size of the huge mapping since
* on 32-bit there may be more than one entry at the pgd
* level for a single hugepage, but all of them point to
* the same kmem cache that holds the hugepte.
* there may be more than one entry at the pgd level
* for a single hugepage, but all of them point to the
* same kmem cache that holds the hugepte.
*/
next = addr + (1 << hugepd_shift(*(hugepd_t *)pgd));
#endif
@@ -698,19 +730,17 @@ int gup_hugepd(hugepd_t *hugepd, unsigned pdshift,
return 1;
}
#ifdef CONFIG_PPC_MM_SLICES
unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
#ifdef CONFIG_PPC_MM_SLICES
struct hstate *hstate = hstate_file(file);
int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0);
#else
return get_unmapped_area(file, addr, len, pgoff, flags);
#endif
}
#endif
unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
{
@@ -784,7 +814,7 @@ static int __init hugepage_setup_sz(char *str)
}
__setup("hugepagesz=", hugepage_setup_sz);
#ifdef CONFIG_FSL_BOOKE
#ifdef CONFIG_PPC_FSL_BOOK3E
struct kmem_cache *hugepte_cache;
static int __init hugetlbpage_init(void)
{