luck/tmp_suning_uos_patched
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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

Browse Source 
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Use generic compat_sys_old_readdir
  powerpc/kexec: Fix up KEXEC_CONTROL_CODE_SIZE missed during conversion
  powerpc: Remove dead module_find_bug code
  powerpc: Add CMO enabled flag and paging space data to lparcfg
  powerpc: Fix CMM page loaning on 64k page kernel with 4k hardware pages
  powerpc: Make CMO paging space pool ID and page size available
  powerpc: Fix lockdep IRQ tracing bug
  powerpc: Fix TLB invalidation on boot on 32-bit
  powerpc: Fix loss of vdso on fork on 32-bit
This commit is contained in:
Linus Torvalds 2008-08-18 12:05:01 -07:00
commit 04cde035fa
11 changed files with 78 additions and 88 deletions
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22
arch/powerpc/include/asm/hvcall.h
View File

@ -291,6 +291,28 @@ struct hvcall_mpp_data {
};
int h_get_mpp(struct hvcall_mpp_data *);
#ifdef CONFIG_PPC_PSERIES
extern int CMO_PrPSP;
extern int CMO_SecPSP;
extern unsigned long CMO_PageSize;
static inline int cmo_get_primary_psp(void)
{
return CMO_PrPSP;
}
static inline int cmo_get_secondary_psp(void)
{
return CMO_SecPSP;
}
static inline unsigned long cmo_get_page_size(void)
{
return CMO_PageSize;
}
#endif /* CONFIG_PPC_PSERIES */
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_HVCALL_H */

5
arch/powerpc/include/asm/irqflags.h
View File

@ -20,7 +20,7 @@
#define TRACE_ENABLE_INTS bl .trace_hardirqs_on
#define TRACE_DISABLE_INTS bl .trace_hardirqs_off
#define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip) \
cmpdi en, 0; \
cmpdi en,0; \
bne 95f; \
stb en,PACASOFTIRQEN(r13); \
bl .trace_hardirqs_off; \
@ -29,7 +29,8 @@
li en,1;
#define TRACE_AND_RESTORE_IRQ(en) \
TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f); \
96: stb en,PACASOFTIRQEN(r13)
stb en,PACASOFTIRQEN(r13); \
96:
#else
#define TRACE_ENABLE_INTS
#define TRACE_DISABLE_INTS

1
arch/powerpc/include/asm/mmu_context.h
View File

@ -147,7 +147,6 @@ static inline void get_mmu_context(struct mm_struct *mm)
static inline int init_new_context(struct task_struct *t, struct mm_struct *mm)
{
mm->context.id = NO_CONTEXT;
mm->context.vdso_base = 0;
return 0;
}

2
arch/powerpc/include/asm/systbl.h
View File

@ -92,7 +92,7 @@ COMPAT_SYS_SPU(readlink)
SYSCALL(uselib)
SYSCALL(swapon)
SYSCALL(reboot)
SYSX(sys_ni_syscall,old32_readdir,old_readdir)
SYSX(sys_ni_syscall,compat_sys_old_readdir,old_readdir)
SYSCALL_SPU(mmap)
SYSCALL_SPU(munmap)
SYSCALL_SPU(truncate)

2
arch/powerpc/kernel/head_32.S
View File

@ -1155,7 +1155,7 @@ flush_tlbs:
lis r10, 0x40
1: addic. r10, r10, -0x1000
tlbie r10
blt 1b
bgt 1b
sync
blr

5
arch/powerpc/kernel/lparcfg.c
View File

@ -416,6 +416,8 @@ static void pseries_cmo_data(struct seq_file *m)
unsigned long cmo_faults = 0;
unsigned long cmo_fault_time = 0;
seq_printf(m, "cmo_enabled=%d\n", firmware_has_feature(FW_FEATURE_CMO));
if (!firmware_has_feature(FW_FEATURE_CMO))
return;
@ -427,6 +429,9 @@ static void pseries_cmo_data(struct seq_file *m)
seq_printf(m, "cmo_faults=%lu\n", cmo_faults);
seq_printf(m, "cmo_fault_time_usec=%lu\n",
cmo_fault_time / tb_ticks_per_usec);
seq_printf(m, "cmo_primary_psp=%d\n", cmo_get_primary_psp());
seq_printf(m, "cmo_secondary_psp=%d\n", cmo_get_secondary_psp());
seq_printf(m, "cmo_page_size=%lu\n", cmo_get_page_size());
}
static int pseries_lparcfg_data(struct seq_file *m, void *v)

2
arch/powerpc/kernel/misc_32.S
View File

@ -899,7 +899,7 @@ relocate_new_kernel:
/* set a new stack at the bottom of our page... */
/* (not really needed now) */
addi r1, r4, KEXEC_CONTROL_CODE_SIZE - 8 /* for LR Save+Back Chain */
addi r1, r4, KEXEC_CONTROL_PAGE_SIZE - 8 /* for LR Save+Back Chain */
stw r0, 0(r1)
/* Do the copies */

15
arch/powerpc/kernel/module.c
View File

@ -99,18 +99,3 @@ void module_arch_cleanup(struct module *mod)
{
module_bug_cleanup(mod);
}
struct bug_entry *module_find_bug(unsigned long bugaddr)
{
struct mod_arch_specific *mod;
unsigned int i;
struct bug_entry *bug;
list_for_each_entry(mod, &module_bug_list, bug_list) {
bug = mod->bug_table;
for (i = 0; i < mod->num_bugs; ++i, ++bug)
if (bugaddr == bug->bug_addr)
return bug;
}
return NULL;
}

57
arch/powerpc/kernel/sys_ppc32.c
View File

@ -52,63 +52,6 @@
#include <asm/ppc-pci.h>
#include <asm/syscalls.h>
struct old_linux_dirent32 {
u32 d_ino;
u32 d_offset;
unsigned short d_namlen;
char d_name[1];
};
struct readdir_callback32 {
struct old_linux_dirent32 __user * dirent;
int count;
};
static int fillonedir(void * __buf, const char * name, int namlen,
off_t offset, u64 ino, unsigned int d_type)
{
struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
struct old_linux_dirent32 __user * dirent;
ino_t d_ino;
if (buf->count)
return -EINVAL;
d_ino = ino;
if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
return -EOVERFLOW;
buf->count++;
dirent = buf->dirent;
put_user(d_ino, &dirent->d_ino);
put_user(offset, &dirent->d_offset);
put_user(namlen, &dirent->d_namlen);
copy_to_user(dirent->d_name, name, namlen);
put_user(0, dirent->d_name + namlen);
return 0;
}
asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 __user *dirent, unsigned int count)
{
int error = -EBADF;
struct file * file;
struct readdir_callback32 buf;
file = fget(fd);
if (!file)
goto out;
buf.count = 0;
buf.dirent = dirent;
error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
if (error < 0)
goto out_putf;
error = buf.count;
out_putf:
fput(file);
out:
return error;
}
asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp,
compat_ulong_t __user *outp, compat_ulong_t __user *exp,

27
arch/powerpc/platforms/pseries/plpar_wrappers.h
View File

@ -2,6 +2,7 @@
#define _PSERIES_PLPAR_WRAPPERS_H
#include <asm/hvcall.h>
#include <asm/page.h>
static inline long poll_pending(void)
{
@ -44,12 +45,34 @@ static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
static inline long plpar_page_set_loaned(unsigned long vpa)
{
return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa, 0);
unsigned long cmo_page_sz = cmo_get_page_size();
long rc = 0;
int i;
for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED, vpa + i, 0);
for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE,
vpa + i - cmo_page_sz, 0);
return rc;
}
static inline long plpar_page_set_active(unsigned long vpa)
{
return plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa, 0);
unsigned long cmo_page_sz = cmo_get_page_size();
long rc = 0;
int i;
for (i = 0; !rc && i < PAGE_SIZE; i += cmo_page_sz)
rc = plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_ACTIVE, vpa + i, 0);
for (i -= cmo_page_sz; rc && i != 0; i -= cmo_page_sz)
plpar_hcall_norets(H_PAGE_INIT, H_PAGE_SET_LOANED,
vpa + i - cmo_page_sz, 0);
return rc;
}
extern void vpa_init(int cpu);

28
arch/powerpc/platforms/pseries/setup.c
View File

@ -68,6 +68,9 @@
#include "plpar_wrappers.h"
#include "pseries.h"
int CMO_PrPSP = -1;
int CMO_SecPSP = -1;
unsigned long CMO_PageSize = (ASM_CONST(1) << IOMMU_PAGE_SHIFT);
int fwnmi_active; /* TRUE if an FWNMI handler is present */
@ -325,8 +328,7 @@ void pSeries_cmo_feature_init(void)
{
char *ptr, *key, *value, *end;
int call_status;
int PrPSP = -1;
int SecPSP = -1;
int page_order = IOMMU_PAGE_SHIFT;
pr_debug(" -> fw_cmo_feature_init()\n");
spin_lock(&rtas_data_buf_lock);
@ -365,21 +367,31 @@ void pSeries_cmo_feature_init(void)
break;
}
if (0 == strcmp(key, "PrPSP"))
PrPSP = simple_strtol(value, NULL, 10);
if (0 == strcmp(key, "CMOPageSize"))
page_order = simple_strtol(value, NULL, 10);
else if (0 == strcmp(key, "PrPSP"))
CMO_PrPSP = simple_strtol(value, NULL, 10);
else if (0 == strcmp(key, "SecPSP"))
SecPSP = simple_strtol(value, NULL, 10);
CMO_SecPSP = simple_strtol(value, NULL, 10);
value = key = ptr + 1;
}
ptr++;
}
if (PrPSP != -1 || SecPSP != -1) {
/* Page size is returned as the power of 2 of the page size,
* convert to the page size in bytes before returning
*/
CMO_PageSize = 1 << page_order;
pr_debug("CMO_PageSize = %lu\n", CMO_PageSize);
if (CMO_PrPSP != -1 || CMO_SecPSP != -1) {
pr_info("CMO enabled\n");
pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
pr_debug("CMO enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
CMO_SecPSP);
powerpc_firmware_features |= FW_FEATURE_CMO;
} else
pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", PrPSP, SecPSP);
pr_debug("CMO not enabled, PrPSP=%d, SecPSP=%d\n", CMO_PrPSP,
CMO_SecPSP);
spin_unlock(&rtas_data_buf_lock);
pr_debug(" <- fw_cmo_feature_init()\n");
}