diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index ed31062029f7231e7434d436e628d3eed68fc774..c523029674e6e31a86ddcc8ad9675fea14e27de9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -581,17 +581,12 @@ config ARCH_FLATMEM_ENABLE
def_bool y
depends on PPC64 && !NUMA
-config ARCH_DISCONTIGMEM_ENABLE
- def_bool y
- depends on SMP && PPC_PSERIES
-
-config ARCH_DISCONTIGMEM_DEFAULT
+config ARCH_SPARSEMEM_ENABLE
def_bool y
- depends on ARCH_DISCONTIGMEM_ENABLE
-config ARCH_SPARSEMEM_ENABLE
+config ARCH_SPARSEMEM_DEFAULT
def_bool y
- depends on ARCH_DISCONTIGMEM_ENABLE
+ depends on SMP && PPC_PSERIES
source "mm/Kconfig"
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index c04bbd320594e6c032ecf75a814a5325908e05f5..9a74b7ab03a4ee7da46e3c839de790493dc6fffa 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -12,11 +12,13 @@ CFLAGS_btext.o += -fPIC
endif
obj-y := semaphore.o cputable.o ptrace.o syscalls.o \
- irq.o signal_32.o pmc.o
+ irq.o signal_32.o pmc.o vdso.o
+obj-y += vdso32/
obj-$(CONFIG_PPC64) += setup_64.o binfmt_elf32.o sys_ppc32.o \
signal_64.o ptrace32.o systbl.o \
paca.o ioctl32.o cpu_setup_power4.o \
- firmware.o sysfs.o
+ firmware.o sysfs.o udbg.o
+obj-$(CONFIG_PPC64) += vdso64/
obj-$(CONFIG_ALTIVEC) += vecemu.o vector.o
obj-$(CONFIG_POWER4) += idle_power4.o
obj-$(CONFIG_PPC_OF) += of_device.o
@@ -29,6 +31,10 @@ obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
obj-$(CONFIG_LPARCFG) += lparcfg.o
obj-$(CONFIG_IBMVIO) += vio.o
obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
+obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
+obj-$(CONFIG_PPC_MAPLE) += udbg_16550.o
+udbgscc-$(CONFIG_PPC64) := udbg_scc.o
+obj-$(CONFIG_PPC_PMAC) += $(udbgscc-y)
ifeq ($(CONFIG_PPC_MERGE),y)
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 8793102711a8faa7f24ac5ad2c31468e6d46e5de..4550eb4f4fbd48f2997c334f26ec8e54b262ef3d 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -37,12 +37,12 @@
#include <asm/cputable.h>
#include <asm/thread_info.h>
#include <asm/rtas.h>
+#include <asm/vdso_datapage.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>
#include <asm/lppaca.h>
#include <asm/iseries/hv_lp_event.h>
#include <asm/cache.h>
-#include <asm/systemcfg.h>
#include <asm/compat.h>
#endif
@@ -251,25 +251,42 @@ int main(void)
DEFINE(TASK_SIZE, TASK_SIZE);
DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
-#else /* CONFIG_PPC64 */
- /* systemcfg offsets for use by vdso */
- DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct systemcfg, tb_orig_stamp));
- DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct systemcfg, tb_ticks_per_sec));
- DEFINE(CFG_TB_TO_XS, offsetof(struct systemcfg, tb_to_xs));
- DEFINE(CFG_STAMP_XSEC, offsetof(struct systemcfg, stamp_xsec));
- DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct systemcfg, tb_update_count));
- DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct systemcfg, tz_minuteswest));
- DEFINE(CFG_TZ_DSTTIME, offsetof(struct systemcfg, tz_dsttime));
- DEFINE(CFG_SYSCALL_MAP32, offsetof(struct systemcfg, syscall_map_32));
- DEFINE(CFG_SYSCALL_MAP64, offsetof(struct systemcfg, syscall_map_64));
+#endif /* ! CONFIG_PPC64 */
- /* timeval/timezone offsets for use by vdso */
+ /* datapage offsets for use by vdso */
+ DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp));
+ DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec));
+ DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs));
+ DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec));
+ DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count));
+ DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest));
+ DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
+ DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
+ DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
+ DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+#ifdef CONFIG_PPC64
+ DEFINE(CFG_SYSCALL_MAP64, offsetof(struct vdso_data, syscall_map_64));
DEFINE(TVAL64_TV_SEC, offsetof(struct timeval, tv_sec));
DEFINE(TVAL64_TV_USEC, offsetof(struct timeval, tv_usec));
DEFINE(TVAL32_TV_SEC, offsetof(struct compat_timeval, tv_sec));
DEFINE(TVAL32_TV_USEC, offsetof(struct compat_timeval, tv_usec));
+ DEFINE(TSPC32_TV_SEC, offsetof(struct compat_timespec, tv_sec));
+ DEFINE(TSPC32_TV_NSEC, offsetof(struct compat_timespec, tv_nsec));
+#else
+ DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
+ DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
+ DEFINE(TSPEC32_TV_SEC, offsetof(struct timespec, tv_sec));
+ DEFINE(TSPEC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
+#endif
+ /* timeval/timezone offsets for use by vdso */
DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
-#endif /* CONFIG_PPC64 */
+
+ /* Other bits used by the vdso */
+ DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+ DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+ DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
+
return 0;
}
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index b102e3a2415e1fe339324745e4c3a6df75530a8d..ccdf94731e300c8d5f3160f5dd74d6eb9a7d3471 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -1100,6 +1100,7 @@ start_here:
mr r3,r31
mr r4,r30
bl machine_init
+ bl __save_cpu_setup
bl MMU_init
#ifdef CONFIG_APUS
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 5e954fae031f9d9a0e62a83cf399408ff43e4da1..1b3ba8a440a6095b9ded96f591814badde7de552 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -35,7 +35,7 @@
#include <asm/time.h>
#include <asm/iseries/it_exp_vpd_panel.h>
#include <asm/prom.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
#define MODULE_VERS "1.6"
#define MODULE_NAME "lparcfg"
@@ -43,7 +43,7 @@
/* #define LPARCFG_DEBUG */
/* find a better place for this function... */
-void log_plpar_hcall_return(unsigned long rc, char *tag)
+static void log_plpar_hcall_return(unsigned long rc, char *tag)
{
if (rc == 0) /* success, return */
return;
@@ -213,11 +213,10 @@ static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
unsigned long dummy;
rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
- log_plpar_hcall_return(rc, "H_PIC");
+ if (rc != H_Authority)
+ log_plpar_hcall_return(rc, "H_PIC");
}
-static unsigned long get_purr(void);
-
/* Track sum of all purrs across all processors. This is used to further */
/* calculate usage values by different applications */
@@ -319,8 +318,6 @@ static void parse_system_parameter_string(struct seq_file *m)
kfree(local_buffer);
}
-static int lparcfg_count_active_processors(void);
-
/* Return the number of processors in the system.
* This function reads through the device tree and counts
* the virtual processors, this does not include threads.
@@ -372,7 +369,7 @@ static int lparcfg_data(struct seq_file *m, void *v)
lrdrp = (int *)get_property(rtas_node, "ibm,lrdr-capacity", NULL);
if (lrdrp == NULL) {
- partition_potential_processors = _systemcfg->processorCount;
+ partition_potential_processors = vdso_data->processorCount;
} else {
partition_potential_processors = *(lrdrp + 4);
}
@@ -548,7 +545,7 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
retval = -EIO;
}
- out:
+out:
kfree(kbuf);
return retval;
}
@@ -561,10 +558,10 @@ static int lparcfg_open(struct inode *inode, struct file *file)
}
struct file_operations lparcfg_fops = {
- .owner = THIS_MODULE,
- .read = seq_read,
- .open = lparcfg_open,
- .release = single_release,
+ .owner = THIS_MODULE,
+ .read = seq_read,
+ .open = lparcfg_open,
+ .release = single_release,
};
int __init lparcfg_init(void)
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 3cf2517c5f91171a46fff1ea4586064f64614c4f..a7b68f911eb130b0dcadf2fce7840ef9a12aa0bd 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -15,17 +15,10 @@
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/page.h>
-#include <asm/systemcfg.h>
#include <asm/lppaca.h>
#include <asm/iseries/it_lp_queue.h>
#include <asm/paca.h>
-static union {
- struct systemcfg data;
- u8 page[PAGE_SIZE];
-} systemcfg_store __attribute__((__section__(".data.page.aligned")));
-struct systemcfg *_systemcfg = &systemcfg_store.data;
-
/* This symbol is provided by the linker - let it fill in the paca
* field correctly */
diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c
index a1c19502fe8bb9f96e35261a97d87e95add7c919..7ba42a405f41fd8fc32429f3d720fb94bcd22944 100644
--- a/arch/powerpc/kernel/proc_ppc64.c
+++ b/arch/powerpc/kernel/proc_ppc64.c
@@ -23,7 +23,7 @@
#include <linux/slab.h>
#include <linux/kernel.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
#include <asm/rtas.h>
#include <asm/uaccess.h>
#include <asm/prom.h>
@@ -72,7 +72,7 @@ static int __init proc_ppc64_init(void)
if (!pde)
return 1;
pde->nlink = 1;
- pde->data = _systemcfg;
+ pde->data = vdso_data;
pde->size = PAGE_SIZE;
pde->proc_fops = &page_map_fops;
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index ae1a36449ccdd0b9e8039b1d8b73b8f92695988f..7a95b8a283548cfca73e75f76ad74c1a77744ca4 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -32,7 +32,6 @@
#include <asm/rtas.h>
#include <asm/machdep.h> /* for ppc_md */
#include <asm/time.h>
-#include <asm/systemcfg.h>
/* Token for Sensors */
#define KEY_SWITCH 0x0001
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index bae4bff138f1ebe3e1fdb02924026713b0399b80..33e7f2c7f194b6e28324dad030acf64da7ab032b 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -33,7 +33,7 @@
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/processor.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
#include <asm/pgtable.h>
#include <asm/smp.h>
#include <asm/elf.h>
@@ -444,10 +444,8 @@ void __init check_for_initrd(void)
if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
initrd_end > initrd_start)
ROOT_DEV = Root_RAM0;
- else {
- printk("Bogus initrd %08lx %08lx\n", initrd_start, initrd_end);
+ else
initrd_start = initrd_end = 0;
- }
if (initrd_start)
printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
@@ -566,7 +564,7 @@ void __init smp_setup_cpu_maps(void)
cpu_set(cpu ^ 0x1, cpu_sibling_map[cpu]);
}
- _systemcfg->processorCount = num_present_cpus();
+ vdso_data->processorCount = num_present_cpus();
#endif /* CONFIG_PPC64 */
}
#endif /* CONFIG_SMP */
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 6791668213e75997ba229544d7b421a5cfe1bc6f..fdbd9f9122f2a69e5212aa30857e6330826cb5e5 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -57,7 +57,6 @@
#include <asm/lmb.h>
#include <asm/iseries/it_lp_naca.h>
#include <asm/firmware.h>
-#include <asm/systemcfg.h>
#include <asm/xmon.h>
#include <asm/udbg.h>
@@ -375,9 +374,8 @@ static void __init initialize_cache_info(void)
DBG("Argh, can't find dcache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
- _systemcfg->dcache_size = ppc64_caches.dsize = size;
- _systemcfg->dcache_line_size =
- ppc64_caches.dline_size = lsize;
+ ppc64_caches.dsize = size;
+ ppc64_caches.dline_size = lsize;
ppc64_caches.log_dline_size = __ilog2(lsize);
ppc64_caches.dlines_per_page = PAGE_SIZE / lsize;
@@ -393,22 +391,13 @@ static void __init initialize_cache_info(void)
DBG("Argh, can't find icache properties ! "
"sizep: %p, lsizep: %p\n", sizep, lsizep);
- _systemcfg->icache_size = ppc64_caches.isize = size;
- _systemcfg->icache_line_size =
- ppc64_caches.iline_size = lsize;
+ ppc64_caches.isize = size;
+ ppc64_caches.iline_size = lsize;
ppc64_caches.log_iline_size = __ilog2(lsize);
ppc64_caches.ilines_per_page = PAGE_SIZE / lsize;
}
}
- /* Add an eye catcher and the systemcfg layout version number */
- strcpy(_systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
- _systemcfg->version.major = SYSTEMCFG_MAJOR;
- _systemcfg->version.minor = SYSTEMCFG_MINOR;
- _systemcfg->processor = mfspr(SPRN_PVR);
- _systemcfg->platform = _machine;
- _systemcfg->physicalMemorySize = lmb_phys_mem_size();
-
DBG(" <- initialize_cache_info()\n");
}
@@ -495,15 +484,14 @@ void __init setup_system(void)
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
- printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller);
- printk("systemcfg = 0x%p\n", _systemcfg);
- printk("systemcfg->platform = 0x%x\n", _systemcfg->platform);
- printk("systemcfg->processorCount = 0x%lx\n", _systemcfg->processorCount);
- printk("systemcfg->physicalMemorySize = 0x%lx\n", _systemcfg->physicalMemorySize);
+ printk("ppc64_interrupt_controller = 0x%ld\n",
+ ppc64_interrupt_controller);
+ printk("platform = 0x%x\n", _machine);
+ printk("physicalMemorySize = 0x%lx\n", lmb_phys_mem_size());
printk("ppc64_caches.dcache_line_size = 0x%x\n",
- ppc64_caches.dline_size);
+ ppc64_caches.dline_size);
printk("ppc64_caches.icache_line_size = 0x%x\n",
- ppc64_caches.iline_size);
+ ppc64_caches.iline_size);
printk("htab_address = 0x%p\n", htab_address);
printk("htab_hash_mask = 0x%lx\n", htab_hash_mask);
printk("-----------------------------------------------------\n");
@@ -567,33 +555,6 @@ static void __init emergency_stack_init(void)
__va(lmb_alloc_base(HW_PAGE_SIZE, 128, limit)) + HW_PAGE_SIZE;
}
-/*
- * Called from setup_arch to initialize the bitmap of available
- * syscalls in the systemcfg page
- */
-void __init setup_syscall_map(void)
-{
- unsigned int i, count64 = 0, count32 = 0;
- extern unsigned long *sys_call_table;
- extern unsigned long sys_ni_syscall;
-
-
- for (i = 0; i < __NR_syscalls; i++) {
- if (sys_call_table[i*2] != sys_ni_syscall) {
- count64++;
- _systemcfg->syscall_map_64[i >> 5] |=
- 0x80000000UL >> (i & 0x1f);
- }
- if (sys_call_table[i*2+1] != sys_ni_syscall) {
- count32++;
- _systemcfg->syscall_map_32[i >> 5] |=
- 0x80000000UL >> (i & 0x1f);
- }
- }
- printk(KERN_INFO "Syscall map setup, %d 32-bit and %d 64-bit syscalls\n",
- count32, count64);
-}
-
/*
* Called into from start_kernel, after lock_kernel has been called.
* Initializes bootmem, which is unsed to manage page allocation until
@@ -635,9 +596,6 @@ void __init setup_arch(char **cmdline_p)
do_init_bootmem();
sparse_init();
- /* initialize the syscall map in systemcfg */
- setup_syscall_map();
-
#ifdef CONFIG_DUMMY_CONSOLE
conswitchp = &dummy_con;
#endif
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index a7c4515f320fc30b968e70118c6f6bb63db45b95..8bdf95b7e4203ecc8df88853b419fc6a5260651d 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -43,10 +43,10 @@
#include <asm/uaccess.h>
#include <asm/cacheflush.h>
#include <asm/sigcontext.h>
+#include <asm/vdso.h>
#ifdef CONFIG_PPC64
#include "ppc32.h"
#include <asm/unistd.h>
-#include <asm/vdso.h>
#else
#include <asm/ucontext.h>
#include <asm/pgtable.h>
@@ -809,14 +809,11 @@ static int handle_rt_signal(unsigned long sig, struct k_sigaction *ka,
/* Save user registers on the stack */
frame = &rt_sf->uc.uc_mcontext;
-#ifdef CONFIG_PPC64
if (vdso32_rt_sigtramp && current->thread.vdso_base) {
if (save_user_regs(regs, frame, 0))
goto badframe;
regs->link = current->thread.vdso_base + vdso32_rt_sigtramp;
- } else
-#endif
- {
+ } else {
if (save_user_regs(regs, frame, __NR_rt_sigreturn))
goto badframe;
regs->link = (unsigned long) frame->tramp;
@@ -1090,14 +1087,11 @@ static int handle_signal(unsigned long sig, struct k_sigaction *ka,
|| __put_user(sig, &sc->signal))
goto badframe;
-#ifdef CONFIG_PPC64
if (vdso32_sigtramp && current->thread.vdso_base) {
if (save_user_regs(regs, &frame->mctx, 0))
goto badframe;
regs->link = current->thread.vdso_base + vdso32_sigtramp;
- } else
-#endif
- {
+ } else {
if (save_user_regs(regs, &frame->mctx, __NR_sigreturn))
goto badframe;
regs->link = (unsigned long) frame->mctx.tramp;
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index e28a139c29d04322f34f19ecfd0e419890a236c3..62dfc5b8d765c7251c0a469ed596f5cad11d9e60 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -44,7 +44,7 @@
#include <asm/cputable.h>
#include <asm/system.h>
#include <asm/mpic.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
#ifdef CONFIG_PPC64
#include <asm/paca.h>
#endif
@@ -371,7 +371,7 @@ int generic_cpu_disable(void)
cpu_clear(cpu, cpu_online_map);
#ifdef CONFIG_PPC64
- _systemcfg->processorCount--;
+ vdso_data->processorCount--;
fixup_irqs(cpu_online_map);
#endif
return 0;
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 850af198fb5f6eb2f5636da7e3f1344cc0d592c3..0f0c3a9ae2e5df8017d2018098206f0f344eb7a3 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -16,7 +16,6 @@
#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/prom.h>
-#include <asm/systemcfg.h>
#include <asm/paca.h>
#include <asm/lppaca.h>
#include <asm/machdep.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 260b6ecd26a9d61f72f7aa42a29455a11a3d6e61..070b4b458aafe73f9de49d0005ab23d6484fefc6 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -62,8 +62,8 @@
#include <asm/irq.h>
#include <asm/div64.h>
#include <asm/smp.h>
+#include <asm/vdso_datapage.h>
#ifdef CONFIG_PPC64
-#include <asm/systemcfg.h>
#include <asm/firmware.h>
#endif
#ifdef CONFIG_PPC_ISERIES
@@ -261,7 +261,6 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
do_gtod.varp = temp_varp;
do_gtod.var_idx = temp_idx;
-#ifdef CONFIG_PPC64
/*
* tb_update_count is used to allow the userspace gettimeofday code
* to assure itself that it sees a consistent view of the tb_to_xs and
@@ -271,14 +270,15 @@ static inline void update_gtod(u64 new_tb_stamp, u64 new_stamp_xsec,
* tb_to_xs and stamp_xsec values are consistent. If not, then it
* loops back and reads them again until this criteria is met.
*/
- ++(_systemcfg->tb_update_count);
+ ++(vdso_data->tb_update_count);
smp_wmb();
- _systemcfg->tb_orig_stamp = new_tb_stamp;
- _systemcfg->stamp_xsec = new_stamp_xsec;
- _systemcfg->tb_to_xs = new_tb_to_xs;
+ vdso_data->tb_orig_stamp = new_tb_stamp;
+ vdso_data->stamp_xsec = new_stamp_xsec;
+ vdso_data->tb_to_xs = new_tb_to_xs;
+ vdso_data->wtom_clock_sec = wall_to_monotonic.tv_sec;
+ vdso_data->wtom_clock_nsec = wall_to_monotonic.tv_nsec;
smp_wmb();
- ++(_systemcfg->tb_update_count);
-#endif
+ ++(vdso_data->tb_update_count);
}
/*
@@ -357,9 +357,8 @@ static void iSeries_tb_recal(void)
do_gtod.tb_ticks_per_sec = tb_ticks_per_sec;
tb_to_xs = divres.result_low;
do_gtod.varp->tb_to_xs = tb_to_xs;
- _systemcfg->tb_ticks_per_sec =
- tb_ticks_per_sec;
- _systemcfg->tb_to_xs = tb_to_xs;
+ vdso_data->tb_ticks_per_sec = tb_ticks_per_sec;
+ vdso_data->tb_to_xs = tb_to_xs;
}
else {
printk( "Titan recalibrate: FAILED (difference > 4 percent)\n"
@@ -561,10 +560,8 @@ int do_settimeofday(struct timespec *tv)
new_xsec += (u64)new_sec * XSEC_PER_SEC - tb_delta_xs;
update_gtod(tb_last_jiffy, new_xsec, do_gtod.varp->tb_to_xs);
-#ifdef CONFIG_PPC64
- _systemcfg->tz_minuteswest = sys_tz.tz_minuteswest;
- _systemcfg->tz_dsttime = sys_tz.tz_dsttime;
-#endif
+ vdso_data->tz_minuteswest = sys_tz.tz_minuteswest;
+ vdso_data->tz_dsttime = sys_tz.tz_dsttime;
write_sequnlock_irqrestore(&xtime_lock, flags);
clock_was_set();
@@ -713,13 +710,12 @@ void __init time_init(void)
do_gtod.tb_ticks_per_sec = tb_ticks_per_sec;
do_gtod.varp->tb_to_xs = tb_to_xs;
do_gtod.tb_to_us = tb_to_us;
-#ifdef CONFIG_PPC64
- _systemcfg->tb_orig_stamp = tb_last_jiffy;
- _systemcfg->tb_update_count = 0;
- _systemcfg->tb_ticks_per_sec = tb_ticks_per_sec;
- _systemcfg->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
- _systemcfg->tb_to_xs = tb_to_xs;
-#endif
+
+ vdso_data->tb_orig_stamp = tb_last_jiffy;
+ vdso_data->tb_update_count = 0;
+ vdso_data->tb_ticks_per_sec = tb_ticks_per_sec;
+ vdso_data->stamp_xsec = xtime.tv_sec * XSEC_PER_SEC;
+ vdso_data->tb_to_xs = tb_to_xs;
time_freq = 0;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 2020bb7648fbc183f2f599ac6c834a2b4d7ed3f9..1511454c4690bafd1a9020afb4c3059180d068c2 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -49,7 +49,6 @@
#ifdef CONFIG_PPC64
#include <asm/firmware.h>
#include <asm/processor.h>
-#include <asm/systemcfg.h>
#endif
#ifdef CONFIG_PPC64 /* XXX */
diff --git a/arch/ppc64/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
similarity index 100%
rename from arch/ppc64/kernel/udbg.c
rename to arch/powerpc/kernel/udbg.c
diff --git a/arch/ppc64/kernel/udbg_16550.c b/arch/powerpc/kernel/udbg_16550.c
similarity index 100%
rename from arch/ppc64/kernel/udbg_16550.c
rename to arch/powerpc/kernel/udbg_16550.c
diff --git a/arch/ppc64/kernel/udbg_scc.c b/arch/powerpc/kernel/udbg_scc.c
similarity index 100%
rename from arch/ppc64/kernel/udbg_scc.c
rename to arch/powerpc/kernel/udbg_scc.c
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
new file mode 100644
index 0000000000000000000000000000000000000000..0d4d8bec0df4b4bc94419954fc2471216b710dbb
--- /dev/null
+++ b/arch/powerpc/kernel/vdso.c
@@ -0,0 +1,746 @@
+/*
+ * linux/arch/ppc64/kernel/vdso.c
+ *
+ * Copyright (C) 2004 Benjamin Herrenschmidt, IBM Corp.
+ * <benh@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/stddef.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/user.h>
+#include <linux/elf.h>
+#include <linux/security.h>
+#include <linux/bootmem.h>
+
+#include <asm/pgtable.h>
+#include <asm/system.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+#include <asm/mmu_context.h>
+#include <asm/lmb.h>
+#include <asm/machdep.h>
+#include <asm/cputable.h>
+#include <asm/sections.h>
+#include <asm/vdso.h>
+#include <asm/vdso_datapage.h>
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt...) printk(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+/* Max supported size for symbol names */
+#define MAX_SYMNAME 64
+
+extern char vdso32_start, vdso32_end;
+static void *vdso32_kbase = &vdso32_start;
+unsigned int vdso32_pages;
+unsigned long vdso32_sigtramp;
+unsigned long vdso32_rt_sigtramp;
+
+#ifdef CONFIG_PPC64
+extern char vdso64_start, vdso64_end;
+static void *vdso64_kbase = &vdso64_start;
+unsigned int vdso64_pages;
+unsigned long vdso64_rt_sigtramp;
+#endif /* CONFIG_PPC64 */
+
+/*
+ * The vdso data page (aka. systemcfg for old ppc64 fans) is here.
+ * Once the early boot kernel code no longer needs to muck around
+ * with it, it will become dynamically allocated
+ */
+static union {
+ struct vdso_data data;
+ u8 page[PAGE_SIZE];
+} vdso_data_store __attribute__((__section__(".data.page_aligned")));
+struct vdso_data *vdso_data = &vdso_data_store.data;
+
+/* Format of the patch table */
+struct vdso_patch_def
+{
+ unsigned long ftr_mask, ftr_value;
+ const char *gen_name;
+ const char *fix_name;
+};
+
+/* Table of functions to patch based on the CPU type/revision
+ *
+ * Currently, we only change sync_dicache to do nothing on processors
+ * with a coherent icache
+ */
+static struct vdso_patch_def vdso_patches[] = {
+ {
+ CPU_FTR_COHERENT_ICACHE, CPU_FTR_COHERENT_ICACHE,
+ "__kernel_sync_dicache", "__kernel_sync_dicache_p5"
+ },
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_gettimeofday", NULL
+ },
+};
+
+/*
+ * Some infos carried around for each of them during parsing at
+ * boot time.
+ */
+struct lib32_elfinfo
+{
+ Elf32_Ehdr *hdr; /* ptr to ELF */
+ Elf32_Sym *dynsym; /* ptr to .dynsym section */
+ unsigned long dynsymsize; /* size of .dynsym section */
+ char *dynstr; /* ptr to .dynstr section */
+ unsigned long text; /* offset of .text section in .so */
+};
+
+struct lib64_elfinfo
+{
+ Elf64_Ehdr *hdr;
+ Elf64_Sym *dynsym;
+ unsigned long dynsymsize;
+ char *dynstr;
+ unsigned long text;
+};
+
+
+#ifdef __DEBUG
+static void dump_one_vdso_page(struct page *pg, struct page *upg)
+{
+ printk("kpg: %p (c:%d,f:%08lx)", __va(page_to_pfn(pg) << PAGE_SHIFT),
+ page_count(pg),
+ pg->flags);
+ if (upg/* && pg != upg*/) {
+ printk(" upg: %p (c:%d,f:%08lx)", __va(page_to_pfn(upg)
+ << PAGE_SHIFT),
+ page_count(upg),
+ upg->flags);
+ }
+ printk("\n");
+}
+
+static void dump_vdso_pages(struct vm_area_struct * vma)
+{
+ int i;
+
+ if (!vma || test_thread_flag(TIF_32BIT)) {
+ printk("vDSO32 @ %016lx:\n", (unsigned long)vdso32_kbase);
+ for (i=0; i<vdso32_pages; i++) {
+ struct page *pg = virt_to_page(vdso32_kbase +
+ i*PAGE_SIZE);
+ struct page *upg = (vma && vma->vm_mm) ?
+ follow_page(vma->vm_mm, vma->vm_start +
+ i*PAGE_SIZE, 0)
+ : NULL;
+ dump_one_vdso_page(pg, upg);
+ }
+ }
+ if (!vma || !test_thread_flag(TIF_32BIT)) {
+ printk("vDSO64 @ %016lx:\n", (unsigned long)vdso64_kbase);
+ for (i=0; i<vdso64_pages; i++) {
+ struct page *pg = virt_to_page(vdso64_kbase +
+ i*PAGE_SIZE);
+ struct page *upg = (vma && vma->vm_mm) ?
+ follow_page(vma->vm_mm, vma->vm_start +
+ i*PAGE_SIZE, 0)
+ : NULL;
+ dump_one_vdso_page(pg, upg);
+ }
+ }
+}
+#endif /* DEBUG */
+
+/*
+ * Keep a dummy vma_close for now, it will prevent VMA merging.
+ */
+static void vdso_vma_close(struct vm_area_struct * vma)
+{
+}
+
+/*
+ * Our nopage() function, maps in the actual vDSO kernel pages, they will
+ * be mapped read-only by do_no_page(), and eventually COW'ed, either
+ * right away for an initial write access, or by do_wp_page().
+ */
+static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
+ unsigned long address, int *type)
+{
+ unsigned long offset = address - vma->vm_start;
+ struct page *pg;
+#ifdef CONFIG_PPC64
+ void *vbase = test_thread_flag(TIF_32BIT) ?
+ vdso32_kbase : vdso64_kbase;
+#else
+ void *vbase = vdso32_kbase;
+#endif
+
+ DBG("vdso_vma_nopage(current: %s, address: %016lx, off: %lx)\n",
+ current->comm, address, offset);
+
+ if (address < vma->vm_start || address > vma->vm_end)
+ return NOPAGE_SIGBUS;
+
+ /*
+ * Last page is systemcfg.
+ */
+ if ((vma->vm_end - address) <= PAGE_SIZE)
+ pg = virt_to_page(vdso_data);
+ else
+ pg = virt_to_page(vbase + offset);
+
+ get_page(pg);
+ DBG(" ->page count: %d\n", page_count(pg));
+
+ return pg;
+}
+
+static struct vm_operations_struct vdso_vmops = {
+ .close = vdso_vma_close,
+ .nopage = vdso_vma_nopage,
+};
+
+/*
+ * This is called from binfmt_elf, we create the special vma for the
+ * vDSO and insert it into the mm struct tree
+ */
+int arch_setup_additional_pages(struct linux_binprm *bprm,
+ int executable_stack)
+{
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+ unsigned long vdso_pages;
+ unsigned long vdso_base;
+
+#ifdef CONFIG_PPC64
+ if (test_thread_flag(TIF_32BIT)) {
+ vdso_pages = vdso32_pages;
+ vdso_base = VDSO32_MBASE;
+ } else {
+ vdso_pages = vdso64_pages;
+ vdso_base = VDSO64_MBASE;
+ }
+#else
+ vdso_pages = vdso32_pages;
+ vdso_base = VDSO32_MBASE;
+#endif
+
+ current->thread.vdso_base = 0;
+
+ /* vDSO has a problem and was disabled, just don't "enable" it for the
+ * process
+ */
+ if (vdso_pages == 0)
+ return 0;
+
+ vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
+ if (vma == NULL)
+ return -ENOMEM;
+
+ memset(vma, 0, sizeof(*vma));
+
+ /* Add a page to the vdso size for the data page */
+ vdso_pages ++;
+
+ /*
+ * pick a base address for the vDSO in process space. We try to put it
+ * at vdso_base which is the "natural" base for it, but we might fail
+ * and end up putting it elsewhere.
+ */
+ vdso_base = get_unmapped_area(NULL, vdso_base,
+ vdso_pages << PAGE_SHIFT, 0, 0);
+ if (vdso_base & ~PAGE_MASK) {
+ kmem_cache_free(vm_area_cachep, vma);
+ return (int)vdso_base;
+ }
+
+ current->thread.vdso_base = vdso_base;
+
+ vma->vm_mm = mm;
+ vma->vm_start = current->thread.vdso_base;
+ vma->vm_end = vma->vm_start + (vdso_pages << PAGE_SHIFT);
+
+ /*
+ * our vma flags don't have VM_WRITE so by default, the process isn't
+ * allowed to write those pages.
+ * gdb can break that with ptrace interface, and thus trigger COW on
+ * those pages but it's then your responsibility to never do that on
+ * the "data" page of the vDSO or you'll stop getting kernel updates
+ * and your nice userland gettimeofday will be totally dead.
+ * It's fine to use that for setting breakpoints in the vDSO code
+ * pages though
+ */
+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYWRITE |
+ VM_MAYEXEC | VM_RESERVED;
+ vma->vm_flags |= mm->def_flags;
+ vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
+ vma->vm_ops = &vdso_vmops;
+
+ down_write(&mm->mmap_sem);
+ if (insert_vm_struct(mm, vma)) {
+ up_write(&mm->mmap_sem);
+ kmem_cache_free(vm_area_cachep, vma);
+ return -ENOMEM;
+ }
+ mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+ up_write(&mm->mmap_sem);
+
+ return 0;
+}
+
+static void * __init find_section32(Elf32_Ehdr *ehdr, const char *secname,
+ unsigned long *size)
+{
+ Elf32_Shdr *sechdrs;
+ unsigned int i;
+ char *secnames;
+
+ /* Grab section headers and strings so we can tell who is who */
+ sechdrs = (void *)ehdr + ehdr->e_shoff;
+ secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
+
+ /* Find the section they want */
+ for (i = 1; i < ehdr->e_shnum; i++) {
+ if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
+ if (size)
+ *size = sechdrs[i].sh_size;
+ return (void *)ehdr + sechdrs[i].sh_offset;
+ }
+ }
+ *size = 0;
+ return NULL;
+}
+
+static Elf32_Sym * __init find_symbol32(struct lib32_elfinfo *lib,
+ const char *symname)
+{
+ unsigned int i;
+ char name[MAX_SYMNAME], *c;
+
+ for (i = 0; i < (lib->dynsymsize / sizeof(Elf32_Sym)); i++) {
+ if (lib->dynsym[i].st_name == 0)
+ continue;
+ strlcpy(name, lib->dynstr + lib->dynsym[i].st_name,
+ MAX_SYMNAME);
+ c = strchr(name, '@');
+ if (c)
+ *c = 0;
+ if (strcmp(symname, name) == 0)
+ return &lib->dynsym[i];
+ }
+ return NULL;
+}
+
+/* Note that we assume the section is .text and the symbol is relative to
+ * the library base
+ */
+static unsigned long __init find_function32(struct lib32_elfinfo *lib,
+ const char *symname)
+{
+ Elf32_Sym *sym = find_symbol32(lib, symname);
+
+ if (sym == NULL) {
+ printk(KERN_WARNING "vDSO32: function %s not found !\n",
+ symname);
+ return 0;
+ }
+ return sym->st_value - VDSO32_LBASE;
+}
+
+static int vdso_do_func_patch32(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64,
+ const char *orig, const char *fix)
+{
+ Elf32_Sym *sym32_gen, *sym32_fix;
+
+ sym32_gen = find_symbol32(v32, orig);
+ if (sym32_gen == NULL) {
+ printk(KERN_ERR "vDSO32: Can't find symbol %s !\n", orig);
+ return -1;
+ }
+ if (fix == NULL) {
+ sym32_gen->st_name = 0;
+ return 0;
+ }
+ sym32_fix = find_symbol32(v32, fix);
+ if (sym32_fix == NULL) {
+ printk(KERN_ERR "vDSO32: Can't find symbol %s !\n", fix);
+ return -1;
+ }
+ sym32_gen->st_value = sym32_fix->st_value;
+ sym32_gen->st_size = sym32_fix->st_size;
+ sym32_gen->st_info = sym32_fix->st_info;
+ sym32_gen->st_other = sym32_fix->st_other;
+ sym32_gen->st_shndx = sym32_fix->st_shndx;
+
+ return 0;
+}
+
+
+#ifdef CONFIG_PPC64
+
+static void * __init find_section64(Elf64_Ehdr *ehdr, const char *secname,
+ unsigned long *size)
+{
+ Elf64_Shdr *sechdrs;
+ unsigned int i;
+ char *secnames;
+
+ /* Grab section headers and strings so we can tell who is who */
+ sechdrs = (void *)ehdr + ehdr->e_shoff;
+ secnames = (void *)ehdr + sechdrs[ehdr->e_shstrndx].sh_offset;
+
+ /* Find the section they want */
+ for (i = 1; i < ehdr->e_shnum; i++) {
+ if (strcmp(secnames+sechdrs[i].sh_name, secname) == 0) {
+ if (size)
+ *size = sechdrs[i].sh_size;
+ return (void *)ehdr + sechdrs[i].sh_offset;
+ }
+ }
+ if (size)
+ *size = 0;
+ return NULL;
+}
+
+static Elf64_Sym * __init find_symbol64(struct lib64_elfinfo *lib,
+ const char *symname)
+{
+ unsigned int i;
+ char name[MAX_SYMNAME], *c;
+
+ for (i = 0; i < (lib->dynsymsize / sizeof(Elf64_Sym)); i++) {
+ if (lib->dynsym[i].st_name == 0)
+ continue;
+ strlcpy(name, lib->dynstr + lib->dynsym[i].st_name,
+ MAX_SYMNAME);
+ c = strchr(name, '@');
+ if (c)
+ *c = 0;
+ if (strcmp(symname, name) == 0)
+ return &lib->dynsym[i];
+ }
+ return NULL;
+}
+
+/* Note that we assume the section is .text and the symbol is relative to
+ * the library base
+ */
+static unsigned long __init find_function64(struct lib64_elfinfo *lib,
+ const char *symname)
+{
+ Elf64_Sym *sym = find_symbol64(lib, symname);
+
+ if (sym == NULL) {
+ printk(KERN_WARNING "vDSO64: function %s not found !\n",
+ symname);
+ return 0;
+ }
+#ifdef VDS64_HAS_DESCRIPTORS
+ return *((u64 *)(vdso64_kbase + sym->st_value - VDSO64_LBASE)) -
+ VDSO64_LBASE;
+#else
+ return sym->st_value - VDSO64_LBASE;
+#endif
+}
+
+static int vdso_do_func_patch64(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64,
+ const char *orig, const char *fix)
+{
+ Elf64_Sym *sym64_gen, *sym64_fix;
+
+ sym64_gen = find_symbol64(v64, orig);
+ if (sym64_gen == NULL) {
+ printk(KERN_ERR "vDSO64: Can't find symbol %s !\n", orig);
+ return -1;
+ }
+ if (fix == NULL) {
+ sym64_gen->st_name = 0;
+ return 0;
+ }
+ sym64_fix = find_symbol64(v64, fix);
+ if (sym64_fix == NULL) {
+ printk(KERN_ERR "vDSO64: Can't find symbol %s !\n", fix);
+ return -1;
+ }
+ sym64_gen->st_value = sym64_fix->st_value;
+ sym64_gen->st_size = sym64_fix->st_size;
+ sym64_gen->st_info = sym64_fix->st_info;
+ sym64_gen->st_other = sym64_fix->st_other;
+ sym64_gen->st_shndx = sym64_fix->st_shndx;
+
+ return 0;
+}
+
+#endif /* CONFIG_PPC64 */
+
+
+static __init int vdso_do_find_sections(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64)
+{
+ void *sect;
+
+ /*
+ * Locate symbol tables & text section
+ */
+
+ v32->dynsym = find_section32(v32->hdr, ".dynsym", &v32->dynsymsize);
+ v32->dynstr = find_section32(v32->hdr, ".dynstr", NULL);
+ if (v32->dynsym == NULL || v32->dynstr == NULL) {
+ printk(KERN_ERR "vDSO32: required symbol section not found\n");
+ return -1;
+ }
+ sect = find_section32(v32->hdr, ".text", NULL);
+ if (sect == NULL) {
+ printk(KERN_ERR "vDSO32: the .text section was not found\n");
+ return -1;
+ }
+ v32->text = sect - vdso32_kbase;
+
+#ifdef CONFIG_PPC64
+ v64->dynsym = find_section64(v64->hdr, ".dynsym", &v64->dynsymsize);
+ v64->dynstr = find_section64(v64->hdr, ".dynstr", NULL);
+ if (v64->dynsym == NULL || v64->dynstr == NULL) {
+ printk(KERN_ERR "vDSO64: required symbol section not found\n");
+ return -1;
+ }
+ sect = find_section64(v64->hdr, ".text", NULL);
+ if (sect == NULL) {
+ printk(KERN_ERR "vDSO64: the .text section was not found\n");
+ return -1;
+ }
+ v64->text = sect - vdso64_kbase;
+#endif /* CONFIG_PPC64 */
+
+ return 0;
+}
+
+static __init void vdso_setup_trampolines(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64)
+{
+ /*
+ * Find signal trampolines
+ */
+
+#ifdef CONFIG_PPC64
+ vdso64_rt_sigtramp = find_function64(v64, "__kernel_sigtramp_rt64");
+#endif
+ vdso32_sigtramp = find_function32(v32, "__kernel_sigtramp32");
+ vdso32_rt_sigtramp = find_function32(v32, "__kernel_sigtramp_rt32");
+}
+
+static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64)
+{
+ Elf32_Sym *sym32;
+#ifdef CONFIG_PPC64
+ Elf64_Sym *sym64;
+
+ sym64 = find_symbol64(v64, "__kernel_datapage_offset");
+ if (sym64 == NULL) {
+ printk(KERN_ERR "vDSO64: Can't find symbol "
+ "__kernel_datapage_offset !\n");
+ return -1;
+ }
+ *((int *)(vdso64_kbase + sym64->st_value - VDSO64_LBASE)) =
+ (vdso64_pages << PAGE_SHIFT) -
+ (sym64->st_value - VDSO64_LBASE);
+#endif /* CONFIG_PPC64 */
+
+ sym32 = find_symbol32(v32, "__kernel_datapage_offset");
+ if (sym32 == NULL) {
+ printk(KERN_ERR "vDSO32: Can't find symbol "
+ "__kernel_datapage_offset !\n");
+ return -1;
+ }
+ *((int *)(vdso32_kbase + (sym32->st_value - VDSO32_LBASE))) =
+ (vdso32_pages << PAGE_SHIFT) -
+ (sym32->st_value - VDSO32_LBASE);
+
+ return 0;
+}
+
+static __init int vdso_fixup_alt_funcs(struct lib32_elfinfo *v32,
+ struct lib64_elfinfo *v64)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vdso_patches); i++) {
+ struct vdso_patch_def *patch = &vdso_patches[i];
+ int match = (cur_cpu_spec->cpu_features & patch->ftr_mask)
+ == patch->ftr_value;
+ if (!match)
+ continue;
+
+ DBG("replacing %s with %s...\n", patch->gen_name,
+ patch->fix_name ? "NONE" : patch->fix_name);
+
+ /*
+ * Patch the 32 bits and 64 bits symbols. Note that we do not
+ * patch the "." symbol on 64 bits.
+ * It would be easy to do, but doesn't seem to be necessary,
+ * patching the OPD symbol is enough.
+ */
+ vdso_do_func_patch32(v32, v64, patch->gen_name,
+ patch->fix_name);
+#ifdef CONFIG_PPC64
+ vdso_do_func_patch64(v32, v64, patch->gen_name,
+ patch->fix_name);
+#endif /* CONFIG_PPC64 */
+ }
+
+ return 0;
+}
+
+
+static __init int vdso_setup(void)
+{
+ struct lib32_elfinfo v32;
+ struct lib64_elfinfo v64;
+
+ v32.hdr = vdso32_kbase;
+#ifdef CONFIG_PPC64
+ v64.hdr = vdso64_kbase;
+#endif
+ if (vdso_do_find_sections(&v32, &v64))
+ return -1;
+
+ if (vdso_fixup_datapage(&v32, &v64))
+ return -1;
+
+ if (vdso_fixup_alt_funcs(&v32, &v64))
+ return -1;
+
+ vdso_setup_trampolines(&v32, &v64);
+
+ return 0;
+}
+
+/*
+ * Called from setup_arch to initialize the bitmap of available
+ * syscalls in the systemcfg page
+ */
+static void __init vdso_setup_syscall_map(void)
+{
+ unsigned int i;
+ extern unsigned long *sys_call_table;
+ extern unsigned long sys_ni_syscall;
+
+
+ for (i = 0; i < __NR_syscalls; i++) {
+#ifdef CONFIG_PPC64
+ if (sys_call_table[i*2] != sys_ni_syscall)
+ vdso_data->syscall_map_64[i >> 5] |=
+ 0x80000000UL >> (i & 0x1f);
+ if (sys_call_table[i*2+1] != sys_ni_syscall)
+ vdso_data->syscall_map_32[i >> 5] |=
+ 0x80000000UL >> (i & 0x1f);
+#else /* CONFIG_PPC64 */
+ if (sys_call_table[i] != sys_ni_syscall)
+ vdso_data->syscall_map_32[i >> 5] |=
+ 0x80000000UL >> (i & 0x1f);
+#endif /* CONFIG_PPC64 */
+ }
+}
+
+
+void __init vdso_init(void)
+{
+ int i;
+
+#ifdef CONFIG_PPC64
+ /*
+ * Fill up the "systemcfg" stuff for backward compatiblity
+ */
+ strcpy(vdso_data->eye_catcher, "SYSTEMCFG:PPC64");
+ vdso_data->version.major = SYSTEMCFG_MAJOR;
+ vdso_data->version.minor = SYSTEMCFG_MINOR;
+ vdso_data->processor = mfspr(SPRN_PVR);
+ vdso_data->platform = _machine;
+ vdso_data->physicalMemorySize = lmb_phys_mem_size();
+ vdso_data->dcache_size = ppc64_caches.dsize;
+ vdso_data->dcache_line_size = ppc64_caches.dline_size;
+ vdso_data->icache_size = ppc64_caches.isize;
+ vdso_data->icache_line_size = ppc64_caches.iline_size;
+
+ /*
+ * Calculate the size of the 64 bits vDSO
+ */
+ vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT;
+ DBG("vdso64_kbase: %p, 0x%x pages\n", vdso64_kbase, vdso64_pages);
+#endif /* CONFIG_PPC64 */
+
+
+ /*
+ * Calculate the size of the 32 bits vDSO
+ */
+ vdso32_pages = (&vdso32_end - &vdso32_start) >> PAGE_SHIFT;
+ DBG("vdso32_kbase: %p, 0x%x pages\n", vdso32_kbase, vdso32_pages);
+
+
+ /*
+ * Setup the syscall map in the vDOS
+ */
+ vdso_setup_syscall_map();
+ /*
+ * Initialize the vDSO images in memory, that is do necessary
+ * fixups of vDSO symbols, locate trampolines, etc...
+ */
+ if (vdso_setup()) {
+ printk(KERN_ERR "vDSO setup failure, not enabled !\n");
+ vdso32_pages = 0;
+#ifdef CONFIG_PPC64
+ vdso64_pages = 0;
+#endif
+ return;
+ }
+
+ /* Make sure pages are in the correct state */
+ for (i = 0; i < vdso32_pages; i++) {
+ struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
+ ClearPageReserved(pg);
+ get_page(pg);
+
+ }
+#ifdef CONFIG_PPC64
+ for (i = 0; i < vdso64_pages; i++) {
+ struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
+ ClearPageReserved(pg);
+ get_page(pg);
+ }
+#endif /* CONFIG_PPC64 */
+
+ get_page(virt_to_page(vdso_data));
+}
+
+int in_gate_area_no_task(unsigned long addr)
+{
+ return 0;
+}
+
+int in_gate_area(struct task_struct *task, unsigned long addr)
+{
+ return 0;
+}
+
+struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
+{
+ return NULL;
+}
+
diff --git a/arch/ppc64/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile
similarity index 91%
rename from arch/ppc64/kernel/vdso32/Makefile
rename to arch/powerpc/kernel/vdso32/Makefile
index 0b1b0df973eb25b38c00baf1a1e363d91267d3fe..8a3bed5f143a14f4a226a26fbcae4a2ba07e9791 100644
--- a/arch/ppc64/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso32/Makefile
@@ -5,6 +5,10 @@ obj-vdso32 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o
# Build rules
+ifeq ($(CONFIG_PPC32),y)
+CROSS32CC := $(CC)
+endif
+
targets := $(obj-vdso32) vdso32.so
obj-vdso32 := $(addprefix $(obj)/, $(obj-vdso32))
@@ -15,7 +19,7 @@ EXTRA_AFLAGS := -D__VDSO32__ -s
obj-y += vdso32_wrapper.o
extra-y += vdso32.lds
-CPPFLAGS_vdso32.lds += -P -C -U$(ARCH)
+CPPFLAGS_vdso32.lds += -P -C -Upowerpc
# Force dependency (incbin is bad)
$(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
diff --git a/arch/ppc64/kernel/vdso32/cacheflush.S b/arch/powerpc/kernel/vdso32/cacheflush.S
similarity index 100%
rename from arch/ppc64/kernel/vdso32/cacheflush.S
rename to arch/powerpc/kernel/vdso32/cacheflush.S
diff --git a/arch/ppc64/kernel/vdso32/datapage.S b/arch/powerpc/kernel/vdso32/datapage.S
similarity index 82%
rename from arch/ppc64/kernel/vdso32/datapage.S
rename to arch/powerpc/kernel/vdso32/datapage.S
index 4f4eb0be3992eedf9b58160858efe3c96a366c93..a08c26e878350d869de74ae4acf105d5e8dc5a50 100644
--- a/arch/ppc64/kernel/vdso32/datapage.S
+++ b/arch/powerpc/kernel/vdso32/datapage.S
@@ -66,3 +66,19 @@ V_FUNCTION_BEGIN(__kernel_get_syscall_map)
blr
.cfi_endproc
V_FUNCTION_END(__kernel_get_syscall_map)
+
+/*
+ * void unsigned long long __kernel_get_tbfreq(void);
+ *
+ * returns the timebase frequency in HZ
+ */
+V_FUNCTION_BEGIN(__kernel_get_tbfreq)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+ bl __get_datapage@local
+ lwz r3,CFG_TB_TICKS_PER_SEC(r3)
+ lwz r4,(CFG_TB_TICKS_PER_SEC + 4)(r3)
+ mtlr r12
+ .cfi_endproc
+V_FUNCTION_END(__kernel_get_tbfreq)
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
new file mode 100644
index 0000000000000000000000000000000000000000..aeb5fc9b87b3a317f211f9fda74b74f54c7ca4aa
--- /dev/null
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -0,0 +1,315 @@
+/*
+ * Userland implementation of gettimeofday() for 32 bits processes in a
+ * ppc64 kernel for use in the vDSO
+ *
+ * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org,
+ * IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+ .text
+/*
+ * Exact prototype of gettimeofday
+ *
+ * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_gettimeofday)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+
+ mr r10,r3 /* r10 saves tv */
+ mr r11,r4 /* r11 saves tz */
+ bl __get_datapage@local /* get data page */
+ mr r9, r3 /* datapage ptr in r9 */
+ bl __do_get_xsec@local /* get xsec from tb & kernel */
+ bne- 2f /* out of line -> do syscall */
+
+ /* seconds are xsec >> 20 */
+ rlwinm r5,r4,12,20,31
+ rlwimi r5,r3,12,0,19
+ stw r5,TVAL32_TV_SEC(r10)
+
+ /* get remaining xsec and convert to usec. we scale
+ * up remaining xsec by 12 bits and get the top 32 bits
+ * of the multiplication
+ */
+ rlwinm r5,r4,12,0,19
+ lis r6,1000000@h
+ ori r6,r6,1000000@l
+ mulhwu r5,r5,r6
+ stw r5,TVAL32_TV_USEC(r10)
+
+ cmpli cr0,r11,0 /* check if tz is NULL */
+ beq 1f
+ lwz r4,CFG_TZ_MINUTEWEST(r9)/* fill tz */
+ lwz r5,CFG_TZ_DSTTIME(r9)
+ stw r4,TZONE_TZ_MINWEST(r11)
+ stw r5,TZONE_TZ_DSTTIME(r11)
+
+1: mtlr r12
+ li r3,0
+ blr
+
+2:
+ mtlr r12
+ mr r3,r10
+ mr r4,r11
+ li r0,__NR_gettimeofday
+ sc
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_gettimeofday)
+
+/*
+ * Exact prototype of clock_gettime()
+ *
+ * int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_gettime)
+ .cfi_startproc
+ /* Check for supported clock IDs */
+ cmpli cr0,r3,CLOCK_REALTIME
+ cmpli cr1,r3,CLOCK_MONOTONIC
+ cror cr0,cr0,cr1
+ bne cr0,99f
+
+ mflr r12 /* r12 saves lr */
+ .cfi_register lr,r12
+ mr r10,r3 /* r10 saves id */
+ mr r11,r4 /* r11 saves tp */
+ bl __get_datapage@local /* get data page */
+ mr r9, r3 /* datapage ptr in r9 */
+ beq cr1,50f /* if monotonic -> jump there */
+
+ /*
+ * CLOCK_REALTIME
+ */
+
+ bl __do_get_xsec@local /* get xsec from tb & kernel */
+ bne- 98f /* out of line -> do syscall */
+
+ /* seconds are xsec >> 20 */
+ rlwinm r5,r4,12,20,31
+ rlwimi r5,r3,12,0,19
+ stw r5,TSPC32_TV_SEC(r11)
+
+ /* get remaining xsec and convert to nsec. we scale
+ * up remaining xsec by 12 bits and get the top 32 bits
+ * of the multiplication, then we multiply by 1000
+ */
+ rlwinm r5,r4,12,0,19
+ lis r6,1000000@h
+ ori r6,r6,1000000@l
+ mulhwu r5,r5,r6
+ mulli r5,r5,1000
+ stw r5,TSPC32_TV_NSEC(r11)
+ mtlr r12
+ li r3,0
+ blr
+
+ /*
+ * CLOCK_MONOTONIC
+ */
+
+50: bl __do_get_xsec@local /* get xsec from tb & kernel */
+ bne- 98f /* out of line -> do syscall */
+
+ /* seconds are xsec >> 20 */
+ rlwinm r6,r4,12,20,31
+ rlwimi r6,r3,12,0,19
+
+ /* get remaining xsec and convert to nsec. we scale
+ * up remaining xsec by 12 bits and get the top 32 bits
+ * of the multiplication, then we multiply by 1000
+ */
+ rlwinm r7,r4,12,0,19
+ lis r5,1000000@h
+ ori r5,r5,1000000@l
+ mulhwu r7,r7,r5
+ mulli r7,r7,1000
+
+ /* now we must fixup using wall to monotonic. We need to snapshot
+ * that value and do the counter trick again. Fortunately, we still
+ * have the counter value in r8 that was returned by __do_get_xsec.
+ * At this point, r6,r7 contain our sec/nsec values, r3,r4 and r5
+ * can be used
+ */
+
+ lwz r3,WTOM_CLOCK_SEC(r9)
+ lwz r4,WTOM_CLOCK_NSEC(r9)
+
+ /* We now have our result in r3,r4. We create a fake dependency
+ * on that result and re-check the counter
+ */
+ or r5,r4,r3
+ xor r0,r5,r5
+ add r9,r9,r0
+#ifdef CONFIG_PPC64
+ lwz r0,(CFG_TB_UPDATE_COUNT+4)(r9)
+#else
+ lwz r0,(CFG_TB_UPDATE_COUNT)(r9)
+#endif
+ cmpl cr0,r8,r0 /* check if updated */
+ bne- 50b
+
+ /* Calculate and store result. Note that this mimmics the C code,
+ * which may cause funny results if nsec goes negative... is that
+ * possible at all ?
+ */
+ add r3,r3,r6
+ add r4,r4,r7
+ lis r5,NSEC_PER_SEC@h
+ ori r5,r5,NSEC_PER_SEC@l
+ cmpli cr0,r4,r5
+ blt 1f
+ subf r4,r5,r4
+ addi r3,r3,1
+1: stw r3,TSPC32_TV_SEC(r11)
+ stw r4,TSPC32_TV_NSEC(r11)
+
+ mtlr r12
+ li r3,0
+ blr
+
+ /*
+ * syscall fallback
+ */
+98:
+ mtlr r12
+ mr r3,r10
+ mr r4,r11
+99:
+ li r0,__NR_clock_gettime
+ sc
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_clock_gettime)
+
+
+/*
+ * Exact prototype of clock_getres()
+ *
+ * int __kernel_clock_getres(clockid_t clock_id, struct timespec *res);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_getres)
+ .cfi_startproc
+ /* Check for supported clock IDs */
+ cmpwi cr0,r3,CLOCK_REALTIME
+ cmpwi cr1,r3,CLOCK_MONOTONIC
+ cror cr0,cr0,cr1
+ bne cr0,99f
+
+ li r3,0
+ cmpli cr0,r4,0
+ beqlr
+ lis r5,CLOCK_REALTIME_RES@h
+ ori r5,r5,CLOCK_REALTIME_RES@l
+ stw r3,TSPC32_TV_SEC(r4)
+ stw r5,TSPC32_TV_NSEC(r4)
+ blr
+
+ /*
+ * syscall fallback
+ */
+99:
+ li r0,__NR_clock_getres
+ sc
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_clock_getres)
+
+
+/*
+ * This is the core of gettimeofday() & friends, it returns the xsec
+ * value in r3 & r4 and expects the datapage ptr (non clobbered)
+ * in r9. clobbers r0,r4,r5,r6,r7,r8.
+ * When returning, r8 contains the counter value that can be reused
+ * by the monotonic clock implementation
+ */
+__do_get_xsec:
+ .cfi_startproc
+ /* Check for update count & load values. We use the low
+ * order 32 bits of the update count
+ */
+#ifdef CONFIG_PPC64
+1: lwz r8,(CFG_TB_UPDATE_COUNT+4)(r9)
+#else
+1: lwz r8,(CFG_TB_UPDATE_COUNT)(r9)
+#endif
+ andi. r0,r8,1 /* pending update ? loop */
+ bne- 1b
+ xor r0,r8,r8 /* create dependency */
+ add r9,r9,r0
+
+ /* Load orig stamp (offset to TB) */
+ lwz r5,CFG_TB_ORIG_STAMP(r9)
+ lwz r6,(CFG_TB_ORIG_STAMP+4)(r9)
+
+ /* Get a stable TB value */
+2: mftbu r3
+ mftbl r4
+ mftbu r0
+ cmpl cr0,r3,r0
+ bne- 2b
+
+ /* Substract tb orig stamp. If the high part is non-zero, we jump to
+ * the slow path which call the syscall.
+ * If it's ok, then we have our 32 bits tb_ticks value in r7
+ */
+ subfc r7,r6,r4
+ subfe. r0,r5,r3
+ bne- 3f
+
+ /* Load scale factor & do multiplication */
+ lwz r5,CFG_TB_TO_XS(r9) /* load values */
+ lwz r6,(CFG_TB_TO_XS+4)(r9)
+ mulhwu r4,r7,r5
+ mulhwu r6,r7,r6
+ mullw r0,r7,r5
+ addc r6,r6,r0
+
+ /* At this point, we have the scaled xsec value in r4 + XER:CA
+ * we load & add the stamp since epoch
+ */
+ lwz r5,CFG_STAMP_XSEC(r9)
+ lwz r6,(CFG_STAMP_XSEC+4)(r9)
+ adde r4,r4,r6
+ addze r3,r5
+
+ /* We now have our result in r3,r4. We create a fake dependency
+ * on that result and re-check the counter
+ */
+ or r6,r4,r3
+ xor r0,r6,r6
+ add r9,r9,r0
+#ifdef CONFIG_PPC64
+ lwz r0,(CFG_TB_UPDATE_COUNT+4)(r9)
+#else
+ lwz r0,(CFG_TB_UPDATE_COUNT)(r9)
+#endif
+ cmpl cr0,r8,r0 /* check if updated */
+ bne- 1b
+
+ /* Warning ! The caller expects CR:EQ to be set to indicate a
+ * successful calculation (so it won't fallback to the syscall
+ * method). We have overriden that CR bit in the counter check,
+ * but fortunately, the loop exit condition _is_ CR:EQ set, so
+ * we can exit safely here. If you change this code, be careful
+ * of that side effect.
+ */
+3: blr
+ .cfi_endproc
diff --git a/arch/ppc64/kernel/vdso32/note.S b/arch/powerpc/kernel/vdso32/note.S
similarity index 100%
rename from arch/ppc64/kernel/vdso32/note.S
rename to arch/powerpc/kernel/vdso32/note.S
diff --git a/arch/ppc64/kernel/vdso32/sigtramp.S b/arch/powerpc/kernel/vdso32/sigtramp.S
similarity index 100%
rename from arch/ppc64/kernel/vdso32/sigtramp.S
rename to arch/powerpc/kernel/vdso32/sigtramp.S
diff --git a/arch/ppc64/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
similarity index 97%
rename from arch/ppc64/kernel/vdso32/vdso32.lds.S
rename to arch/powerpc/kernel/vdso32/vdso32.lds.S
index 6f87a916a394c37f7d63564f8d62edcd7569cc80..f4bad720cb0a1b7f450260671844261f0ebb634e 100644
--- a/arch/ppc64/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -102,9 +102,12 @@ VERSION
{
VDSO_VERSION_STRING {
global:
- __kernel_datapage_offset; /* Has to be there for the kernel to find it */
+ __kernel_datapage_offset; /* Has to be there for the kernel to find */
__kernel_get_syscall_map;
__kernel_gettimeofday;
+ __kernel_clock_gettime;
+ __kernel_clock_getres;
+ __kernel_get_tbfreq;
__kernel_sync_dicache;
__kernel_sync_dicache_p5;
__kernel_sigtramp32;
diff --git a/arch/ppc64/kernel/vdso32/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S
similarity index 79%
rename from arch/ppc64/kernel/vdso32/vdso32_wrapper.S
rename to arch/powerpc/kernel/vdso32/vdso32_wrapper.S
index 76ca28e09d295cbceca9909ce5b1c7fa858a5b60..556f0caa5d842a27885a6c2417787c18315037dc 100644
--- a/arch/ppc64/kernel/vdso32/vdso32_wrapper.S
+++ b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S
@@ -6,7 +6,7 @@
.globl vdso32_start, vdso32_end
.balign PAGE_SIZE
vdso32_start:
- .incbin "arch/ppc64/kernel/vdso32/vdso32.so"
+ .incbin "arch/powerpc/kernel/vdso32/vdso32.so"
.balign PAGE_SIZE
vdso32_end:
diff --git a/arch/ppc64/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
similarity index 100%
rename from arch/ppc64/kernel/vdso64/Makefile
rename to arch/powerpc/kernel/vdso64/Makefile
diff --git a/arch/ppc64/kernel/vdso64/cacheflush.S b/arch/powerpc/kernel/vdso64/cacheflush.S
similarity index 100%
rename from arch/ppc64/kernel/vdso64/cacheflush.S
rename to arch/powerpc/kernel/vdso64/cacheflush.S
diff --git a/arch/ppc64/kernel/vdso64/datapage.S b/arch/powerpc/kernel/vdso64/datapage.S
similarity index 84%
rename from arch/ppc64/kernel/vdso64/datapage.S
rename to arch/powerpc/kernel/vdso64/datapage.S
index ed6e599ae8242a6a8ad992d0492a15a4cc3b8a1e..e67eda0f8cdab01aa38322300c3f014a32ff76e8 100644
--- a/arch/ppc64/kernel/vdso64/datapage.S
+++ b/arch/powerpc/kernel/vdso64/datapage.S
@@ -66,3 +66,19 @@ V_FUNCTION_BEGIN(__kernel_get_syscall_map)
blr
.cfi_endproc
V_FUNCTION_END(__kernel_get_syscall_map)
+
+
+/*
+ * void unsigned long __kernel_get_tbfreq(void);
+ *
+ * returns the timebase frequency in HZ
+ */
+V_FUNCTION_BEGIN(__kernel_get_tbfreq)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+ bl V_LOCAL_FUNC(__get_datapage)
+ ld r3,CFG_TB_TICKS_PER_SEC(r3)
+ mtlr r12
+ .cfi_endproc
+V_FUNCTION_END(__kernel_get_tbfreq)
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
new file mode 100644
index 0000000000000000000000000000000000000000..d371c02a8c0e3f47e295aa30f4d8f001dd8279ab
--- /dev/null
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -0,0 +1,242 @@
+/*
+ * Userland implementation of gettimeofday() for 64 bits processes in a
+ * ppc64 kernel for use in the vDSO
+ *
+ * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org),
+ * IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+#include <asm/vdso.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+
+ .text
+/*
+ * Exact prototype of gettimeofday
+ *
+ * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_gettimeofday)
+ .cfi_startproc
+ mflr r12
+ .cfi_register lr,r12
+
+ mr r11,r3 /* r11 holds tv */
+ mr r10,r4 /* r10 holds tz */
+ bl V_LOCAL_FUNC(__get_datapage) /* get data page */
+ bl V_LOCAL_FUNC(__do_get_xsec) /* get xsec from tb & kernel */
+ lis r7,15 /* r7 = 1000000 = USEC_PER_SEC */
+ ori r7,r7,16960
+ rldicl r5,r4,44,20 /* r5 = sec = xsec / XSEC_PER_SEC */
+ rldicr r6,r5,20,43 /* r6 = sec * XSEC_PER_SEC */
+ std r5,TVAL64_TV_SEC(r11) /* store sec in tv */
+ subf r0,r6,r4 /* r0 = xsec = (xsec - r6) */
+ mulld r0,r0,r7 /* usec = (xsec * USEC_PER_SEC) /
+ * XSEC_PER_SEC
+ */
+ rldicl r0,r0,44,20
+ cmpldi cr0,r10,0 /* check if tz is NULL */
+ std r0,TVAL64_TV_USEC(r11) /* store usec in tv */
+ beq 1f
+ lwz r4,CFG_TZ_MINUTEWEST(r3)/* fill tz */
+ lwz r5,CFG_TZ_DSTTIME(r3)
+ stw r4,TZONE_TZ_MINWEST(r10)
+ stw r5,TZONE_TZ_DSTTIME(r10)
+1: mtlr r12
+ li r3,0 /* always success */
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_gettimeofday)
+
+
+/*
+ * Exact prototype of clock_gettime()
+ *
+ * int __kernel_clock_gettime(clockid_t clock_id, struct timespec *tp);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_gettime)
+ .cfi_startproc
+ /* Check for supported clock IDs */
+ cmpwi cr0,r3,CLOCK_REALTIME
+ cmpwi cr1,r3,CLOCK_MONOTONIC
+ cror cr0,cr0,cr1
+ bne cr0,99f
+
+ mflr r12 /* r12 saves lr */
+ .cfi_register lr,r12
+ mr r10,r3 /* r10 saves id */
+ mr r11,r4 /* r11 saves tp */
+ bl V_LOCAL_FUNC(__get_datapage) /* get data page */
+ beq cr1,50f /* if monotonic -> jump there */
+
+ /*
+ * CLOCK_REALTIME
+ */
+
+ bl V_LOCAL_FUNC(__do_get_xsec) /* get xsec from tb & kernel */
+
+ lis r7,0x3b9a /* r7 = 1000000000 = NSEC_PER_SEC */
+ ori r7,r7,0xca00
+ rldicl r5,r4,44,20 /* r5 = sec = xsec / XSEC_PER_SEC */
+ rldicr r6,r5,20,43 /* r6 = sec * XSEC_PER_SEC */
+ std r5,TSPC64_TV_SEC(r11) /* store sec in tv */
+ subf r0,r6,r4 /* r0 = xsec = (xsec - r6) */
+ mulld r0,r0,r7 /* nsec = (xsec * NSEC_PER_SEC) /
+ * XSEC_PER_SEC
+ */
+ rldicl r0,r0,44,20
+ std r0,TSPC64_TV_NSEC(r11) /* store nsec in tp */
+
+ mtlr r12
+ li r3,0
+ blr
+
+ /*
+ * CLOCK_MONOTONIC
+ */
+
+50: bl V_LOCAL_FUNC(__do_get_xsec) /* get xsec from tb & kernel */
+
+ lis r7,0x3b9a /* r7 = 1000000000 = NSEC_PER_SEC */
+ ori r7,r7,0xca00
+ rldicl r5,r4,44,20 /* r5 = sec = xsec / XSEC_PER_SEC */
+ rldicr r6,r5,20,43 /* r6 = sec * XSEC_PER_SEC */
+ subf r0,r6,r4 /* r0 = xsec = (xsec - r6) */
+ mulld r0,r0,r7 /* nsec = (xsec * NSEC_PER_SEC) /
+ * XSEC_PER_SEC
+ */
+ rldicl r6,r0,44,20
+
+ /* now we must fixup using wall to monotonic. We need to snapshot
+ * that value and do the counter trick again. Fortunately, we still
+ * have the counter value in r8 that was returned by __do_get_xsec.
+ * At this point, r5,r6 contain our sec/nsec values.
+ * can be used
+ */
+
+ lwz r4,WTOM_CLOCK_SEC(r9)
+ lwz r7,WTOM_CLOCK_NSEC(r9)
+
+ /* We now have our result in r4,r7. We create a fake dependency
+ * on that result and re-check the counter
+ */
+ or r9,r4,r7
+ xor r0,r9,r9
+ add r3,r3,r0
+ ld r0,CFG_TB_UPDATE_COUNT(r3)
+ cmpld cr0,r0,r8 /* check if updated */
+ bne- 50b
+
+ /* Calculate and store result. Note that this mimmics the C code,
+ * which may cause funny results if nsec goes negative... is that
+ * possible at all ?
+ */
+ add r4,r4,r5
+ add r7,r7,r6
+ lis r9,NSEC_PER_SEC@h
+ ori r9,r9,NSEC_PER_SEC@l
+ cmpli cr0,r7,r9
+ blt 1f
+ subf r7,r9,r7
+ addi r4,r4,1
+1: std r4,TSPC64_TV_SEC(r11)
+ std r7,TSPC64_TV_NSEC(r11)
+
+ mtlr r12
+ li r3,0
+ blr
+
+ /*
+ * syscall fallback
+ */
+98:
+ mtlr r12
+ mr r3,r10
+ mr r4,r11
+99:
+ li r0,__NR_clock_gettime
+ sc
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_clock_gettime)
+
+
+/*
+ * Exact prototype of clock_getres()
+ *
+ * int __kernel_clock_getres(clockid_t clock_id, struct timespec *res);
+ *
+ */
+V_FUNCTION_BEGIN(__kernel_clock_getres)
+ .cfi_startproc
+ /* Check for supported clock IDs */
+ cmpwi cr0,r3,CLOCK_REALTIME
+ cmpwi cr1,r3,CLOCK_MONOTONIC
+ cror cr0,cr0,cr1
+ bne cr0,99f
+
+ li r3,0
+ cmpli cr0,r4,0
+ beqlr
+ lis r5,CLOCK_REALTIME_RES@h
+ ori r5,r5,CLOCK_REALTIME_RES@l
+ std r3,TSPC64_TV_SEC(r4)
+ std r5,TSPC64_TV_NSEC(r4)
+ blr
+
+ /*
+ * syscall fallback
+ */
+99:
+ li r0,__NR_clock_getres
+ sc
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__kernel_clock_getres)
+
+
+/*
+ * This is the core of gettimeofday(), it returns the xsec
+ * value in r4 and expects the datapage ptr (non clobbered)
+ * in r3. clobbers r0,r4,r5,r6,r7,r8
+ * When returning, r8 contains the counter value that can be reused
+ */
+V_FUNCTION_BEGIN(__do_get_xsec)
+ .cfi_startproc
+ /* check for update count & load values */
+1: ld r8,CFG_TB_UPDATE_COUNT(r3)
+ andi. r0,r4,1 /* pending update ? loop */
+ bne- 1b
+ xor r0,r4,r4 /* create dependency */
+ add r3,r3,r0
+
+ /* Get TB & offset it */
+ mftb r7
+ ld r9,CFG_TB_ORIG_STAMP(r3)
+ subf r7,r9,r7
+
+ /* Scale result */
+ ld r5,CFG_TB_TO_XS(r3)
+ mulhdu r7,r7,r5
+
+ /* Add stamp since epoch */
+ ld r6,CFG_STAMP_XSEC(r3)
+ add r4,r6,r7
+
+ xor r0,r4,r4
+ add r3,r3,r0
+ ld r0,CFG_TB_UPDATE_COUNT(r3)
+ cmpld cr0,r0,r8 /* check if updated */
+ bne- 1b
+ blr
+ .cfi_endproc
+V_FUNCTION_END(__do_get_xsec)
diff --git a/arch/ppc64/kernel/vdso64/note.S b/arch/powerpc/kernel/vdso64/note.S
similarity index 100%
rename from arch/ppc64/kernel/vdso64/note.S
rename to arch/powerpc/kernel/vdso64/note.S
diff --git a/arch/ppc64/kernel/vdso64/sigtramp.S b/arch/powerpc/kernel/vdso64/sigtramp.S
similarity index 100%
rename from arch/ppc64/kernel/vdso64/sigtramp.S
rename to arch/powerpc/kernel/vdso64/sigtramp.S
diff --git a/arch/ppc64/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
similarity index 97%
rename from arch/ppc64/kernel/vdso64/vdso64.lds.S
rename to arch/powerpc/kernel/vdso64/vdso64.lds.S
index 9cb28181da802c0d4c9d3ce6c3220c8371df4256..4bdf224464abaf2914a2d62bb285f5f3404fe85c 100644
--- a/arch/ppc64/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -102,9 +102,12 @@ VERSION
{
VDSO_VERSION_STRING {
global:
- __kernel_datapage_offset; /* Has to be there for the kernel to find it */
+ __kernel_datapage_offset; /* Has to be there for the kernel to find */
__kernel_get_syscall_map;
__kernel_gettimeofday;
+ __kernel_clock_gettime;
+ __kernel_clock_getres;
+ __kernel_get_tbfreq;
__kernel_sync_dicache;
__kernel_sync_dicache_p5;
__kernel_sigtramp_rt64;
diff --git a/arch/ppc64/kernel/vdso64/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S
similarity index 79%
rename from arch/ppc64/kernel/vdso64/vdso64_wrapper.S
rename to arch/powerpc/kernel/vdso64/vdso64_wrapper.S
index 771c2741c492ebd8b11685ad593dd67fa657ece3..0529cb9e3b97bfaef233858595f91cebb820ac96 100644
--- a/arch/ppc64/kernel/vdso64/vdso64_wrapper.S
+++ b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S
@@ -6,7 +6,7 @@
.globl vdso64_start, vdso64_end
.balign PAGE_SIZE
vdso64_start:
- .incbin "arch/ppc64/kernel/vdso64/vdso64.so"
+ .incbin "arch/powerpc/kernel/vdso64/vdso64.so"
.balign PAGE_SIZE
vdso64_end:
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 1dd3cc69a4901710d0514202dad224121619d9df..e2c95fcb8055186cf2e4d452d0d125c86e024820 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -46,9 +46,7 @@
#include <asm/prom.h>
#include <asm/lmb.h>
#include <asm/sections.h>
-#ifdef CONFIG_PPC64
#include <asm/vdso.h>
-#endif
#include "mmu_decl.h"
@@ -397,10 +395,8 @@ void __init mem_init(void)
mem_init_done = 1;
-#ifdef CONFIG_PPC64
/* Initialize the vDSO */
vdso_init();
-#endif
}
/*
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index da09ba03c424fb6b89ca06c795bbf2c646d5f734..bd2cf13368853f0518fbf5e018f8b2069b6998d8 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -17,9 +17,8 @@
#include <linux/nodemask.h>
#include <linux/cpu.h>
#include <linux/notifier.h>
+#include <asm/sparsemem.h>
#include <asm/lmb.h>
-#include <asm/machdep.h>
-#include <asm/abs_addr.h>
#include <asm/system.h>
#include <asm/smp.h>
@@ -28,45 +27,113 @@ static int numa_enabled = 1;
static int numa_debug;
#define dbg(args...) if (numa_debug) { printk(KERN_INFO args); }
-#ifdef DEBUG_NUMA
-#define ARRAY_INITIALISER -1
-#else
-#define ARRAY_INITIALISER 0
-#endif
-
-int numa_cpu_lookup_table[NR_CPUS] = { [ 0 ... (NR_CPUS - 1)] =
- ARRAY_INITIALISER};
-char *numa_memory_lookup_table;
+int numa_cpu_lookup_table[NR_CPUS];
cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
-int nr_cpus_in_node[MAX_NUMNODES] = { [0 ... (MAX_NUMNODES -1)] = 0};
-
struct pglist_data *node_data[MAX_NUMNODES];
-bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
+
+EXPORT_SYMBOL(numa_cpu_lookup_table);
+EXPORT_SYMBOL(numa_cpumask_lookup_table);
+EXPORT_SYMBOL(node_data);
+
+static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
static int min_common_depth;
/*
- * We need somewhere to store start/span for each node until we have
+ * We need somewhere to store start/end/node for each region until we have
* allocated the real node_data structures.
*/
+#define MAX_REGIONS (MAX_LMB_REGIONS*2)
static struct {
- unsigned long node_start_pfn;
- unsigned long node_end_pfn;
- unsigned long node_present_pages;
-} init_node_data[MAX_NUMNODES] __initdata;
+ unsigned long start_pfn;
+ unsigned long end_pfn;
+ int nid;
+} init_node_data[MAX_REGIONS] __initdata;
-EXPORT_SYMBOL(node_data);
-EXPORT_SYMBOL(numa_cpu_lookup_table);
-EXPORT_SYMBOL(numa_memory_lookup_table);
-EXPORT_SYMBOL(numa_cpumask_lookup_table);
-EXPORT_SYMBOL(nr_cpus_in_node);
+int __init early_pfn_to_nid(unsigned long pfn)
+{
+ unsigned int i;
+
+ for (i = 0; init_node_data[i].end_pfn; i++) {
+ unsigned long start_pfn = init_node_data[i].start_pfn;
+ unsigned long end_pfn = init_node_data[i].end_pfn;
+
+ if ((start_pfn <= pfn) && (pfn < end_pfn))
+ return init_node_data[i].nid;
+ }
+
+ return -1;
+}
+
+void __init add_region(unsigned int nid, unsigned long start_pfn,
+ unsigned long pages)
+{
+ unsigned int i;
+
+ dbg("add_region nid %d start_pfn 0x%lx pages 0x%lx\n",
+ nid, start_pfn, pages);
+
+ for (i = 0; init_node_data[i].end_pfn; i++) {
+ if (init_node_data[i].nid != nid)
+ continue;
+ if (init_node_data[i].end_pfn == start_pfn) {
+ init_node_data[i].end_pfn += pages;
+ return;
+ }
+ if (init_node_data[i].start_pfn == (start_pfn + pages)) {
+ init_node_data[i].start_pfn -= pages;
+ return;
+ }
+ }
+
+ /*
+ * Leave last entry NULL so we dont iterate off the end (we use
+ * entry.end_pfn to terminate the walk).
+ */
+ if (i >= (MAX_REGIONS - 1)) {
+ printk(KERN_ERR "WARNING: too many memory regions in "
+ "numa code, truncating\n");
+ return;
+ }
+
+ init_node_data[i].start_pfn = start_pfn;
+ init_node_data[i].end_pfn = start_pfn + pages;
+ init_node_data[i].nid = nid;
+}
+
+/* We assume init_node_data has no overlapping regions */
+void __init get_region(unsigned int nid, unsigned long *start_pfn,
+ unsigned long *end_pfn, unsigned long *pages_present)
+{
+ unsigned int i;
+
+ *start_pfn = -1UL;
+ *end_pfn = *pages_present = 0;
+
+ for (i = 0; init_node_data[i].end_pfn; i++) {
+ if (init_node_data[i].nid != nid)
+ continue;
+
+ *pages_present += init_node_data[i].end_pfn -
+ init_node_data[i].start_pfn;
+
+ if (init_node_data[i].start_pfn < *start_pfn)
+ *start_pfn = init_node_data[i].start_pfn;
+
+ if (init_node_data[i].end_pfn > *end_pfn)
+ *end_pfn = init_node_data[i].end_pfn;
+ }
+
+ /* We didnt find a matching region, return start/end as 0 */
+ if (*start_pfn == -1UL)
+ start_pfn = 0;
+}
static inline void map_cpu_to_node(int cpu, int node)
{
numa_cpu_lookup_table[cpu] = node;
- if (!(cpu_isset(cpu, numa_cpumask_lookup_table[node]))) {
+
+ if (!(cpu_isset(cpu, numa_cpumask_lookup_table[node])))
cpu_set(cpu, numa_cpumask_lookup_table[node]);
- nr_cpus_in_node[node]++;
- }
}
#ifdef CONFIG_HOTPLUG_CPU
@@ -78,7 +145,6 @@ static void unmap_cpu_from_node(unsigned long cpu)
if (cpu_isset(cpu, numa_cpumask_lookup_table[node])) {
cpu_clear(cpu, numa_cpumask_lookup_table[node]);
- nr_cpus_in_node[node]--;
} else {
printk(KERN_ERR "WARNING: cpu %lu not found in node %d\n",
cpu, node);
@@ -86,7 +152,7 @@ static void unmap_cpu_from_node(unsigned long cpu)
}
#endif /* CONFIG_HOTPLUG_CPU */
-static struct device_node * __devinit find_cpu_node(unsigned int cpu)
+static struct device_node *find_cpu_node(unsigned int cpu)
{
unsigned int hw_cpuid = get_hard_smp_processor_id(cpu);
struct device_node *cpu_node = NULL;
@@ -213,7 +279,7 @@ static int __init get_mem_size_cells(void)
return rc;
}
-static unsigned long read_n_cells(int n, unsigned int **buf)
+static unsigned long __init read_n_cells(int n, unsigned int **buf)
{
unsigned long result = 0;
@@ -295,7 +361,8 @@ static int cpu_numa_callback(struct notifier_block *nfb,
* or zero. If the returned value of size is 0 the region should be
* discarded as it lies wholy above the memory limit.
*/
-static unsigned long __init numa_enforce_memory_limit(unsigned long start, unsigned long size)
+static unsigned long __init numa_enforce_memory_limit(unsigned long start,
+ unsigned long size)
{
/*
* We use lmb_end_of_DRAM() in here instead of memory_limit because
@@ -320,8 +387,7 @@ static int __init parse_numa_properties(void)
struct device_node *cpu = NULL;
struct device_node *memory = NULL;
int addr_cells, size_cells;
- int max_domain = 0;
- long entries = lmb_end_of_DRAM() >> MEMORY_INCREMENT_SHIFT;
+ int max_domain;
unsigned long i;
if (numa_enabled == 0) {
@@ -329,13 +395,6 @@ static int __init parse_numa_properties(void)
return -1;
}
- numa_memory_lookup_table =
- (char *)abs_to_virt(lmb_alloc(entries * sizeof(char), 1));
- memset(numa_memory_lookup_table, 0, entries * sizeof(char));
-
- for (i = 0; i < entries ; i++)
- numa_memory_lookup_table[i] = ARRAY_INITIALISER;
-
min_common_depth = find_min_common_depth();
dbg("NUMA associativity depth for CPU/Memory: %d\n", min_common_depth);
@@ -387,9 +446,6 @@ static int __init parse_numa_properties(void)
start = read_n_cells(addr_cells, &memcell_buf);
size = read_n_cells(size_cells, &memcell_buf);
- start = _ALIGN_DOWN(start, MEMORY_INCREMENT);
- size = _ALIGN_UP(size, MEMORY_INCREMENT);
-
numa_domain = of_node_numa_domain(memory);
if (numa_domain >= MAX_NUMNODES) {
@@ -403,44 +459,15 @@ static int __init parse_numa_properties(void)
if (max_domain < numa_domain)
max_domain = numa_domain;
- if (! (size = numa_enforce_memory_limit(start, size))) {
+ if (!(size = numa_enforce_memory_limit(start, size))) {
if (--ranges)
goto new_range;
else
continue;
}
- /*
- * Initialize new node struct, or add to an existing one.
- */
- if (init_node_data[numa_domain].node_end_pfn) {
- if ((start / PAGE_SIZE) <
- init_node_data[numa_domain].node_start_pfn)
- init_node_data[numa_domain].node_start_pfn =
- start / PAGE_SIZE;
- if (((start / PAGE_SIZE) + (size / PAGE_SIZE)) >
- init_node_data[numa_domain].node_end_pfn)
- init_node_data[numa_domain].node_end_pfn =
- (start / PAGE_SIZE) +
- (size / PAGE_SIZE);
-
- init_node_data[numa_domain].node_present_pages +=
- size / PAGE_SIZE;
- } else {
- node_set_online(numa_domain);
-
- init_node_data[numa_domain].node_start_pfn =
- start / PAGE_SIZE;
- init_node_data[numa_domain].node_end_pfn =
- init_node_data[numa_domain].node_start_pfn +
- size / PAGE_SIZE;
- init_node_data[numa_domain].node_present_pages =
- size / PAGE_SIZE;
- }
-
- for (i = start ; i < (start+size); i += MEMORY_INCREMENT)
- numa_memory_lookup_table[i >> MEMORY_INCREMENT_SHIFT] =
- numa_domain;
+ add_region(numa_domain, start >> PAGE_SHIFT,
+ size >> PAGE_SHIFT);
if (--ranges)
goto new_range;
@@ -456,32 +483,15 @@ static void __init setup_nonnuma(void)
{
unsigned long top_of_ram = lmb_end_of_DRAM();
unsigned long total_ram = lmb_phys_mem_size();
- unsigned long i;
printk(KERN_INFO "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
top_of_ram, total_ram);
printk(KERN_INFO "Memory hole size: %ldMB\n",
(top_of_ram - total_ram) >> 20);
- if (!numa_memory_lookup_table) {
- long entries = top_of_ram >> MEMORY_INCREMENT_SHIFT;
- numa_memory_lookup_table =
- (char *)abs_to_virt(lmb_alloc(entries * sizeof(char), 1));
- memset(numa_memory_lookup_table, 0, entries * sizeof(char));
- for (i = 0; i < entries ; i++)
- numa_memory_lookup_table[i] = ARRAY_INITIALISER;
- }
-
map_cpu_to_node(boot_cpuid, 0);
-
+ add_region(0, 0, lmb_end_of_DRAM() >> PAGE_SHIFT);
node_set_online(0);
-
- init_node_data[0].node_start_pfn = 0;
- init_node_data[0].node_end_pfn = lmb_end_of_DRAM() / PAGE_SIZE;
- init_node_data[0].node_present_pages = total_ram / PAGE_SIZE;
-
- for (i = 0 ; i < top_of_ram; i += MEMORY_INCREMENT)
- numa_memory_lookup_table[i >> MEMORY_INCREMENT_SHIFT] = 0;
}
static void __init dump_numa_topology(void)
@@ -499,8 +509,9 @@ static void __init dump_numa_topology(void)
count = 0;
- for (i = 0; i < lmb_end_of_DRAM(); i += MEMORY_INCREMENT) {
- if (numa_memory_lookup_table[i >> MEMORY_INCREMENT_SHIFT] == node) {
+ for (i = 0; i < lmb_end_of_DRAM();
+ i += (1 << SECTION_SIZE_BITS)) {
+ if (early_pfn_to_nid(i >> PAGE_SHIFT) == node) {
if (count == 0)
printk(" 0x%lx", i);
++count;
@@ -525,10 +536,12 @@ static void __init dump_numa_topology(void)
*
* Returns the physical address of the memory.
*/
-static unsigned long careful_allocation(int nid, unsigned long size,
- unsigned long align, unsigned long end)
+static void __init *careful_allocation(int nid, unsigned long size,
+ unsigned long align,
+ unsigned long end_pfn)
{
- unsigned long ret = lmb_alloc_base(size, align, end);
+ int new_nid;
+ unsigned long ret = lmb_alloc_base(size, align, end_pfn << PAGE_SHIFT);
/* retry over all memory */
if (!ret)
@@ -542,28 +555,27 @@ static unsigned long careful_allocation(int nid, unsigned long size,
* If the memory came from a previously allocated node, we must
* retry with the bootmem allocator.
*/
- if (pa_to_nid(ret) < nid) {
- nid = pa_to_nid(ret);
- ret = (unsigned long)__alloc_bootmem_node(NODE_DATA(nid),
+ new_nid = early_pfn_to_nid(ret >> PAGE_SHIFT);
+ if (new_nid < nid) {
+ ret = (unsigned long)__alloc_bootmem_node(NODE_DATA(new_nid),
size, align, 0);
if (!ret)
panic("numa.c: cannot allocate %lu bytes on node %d",
- size, nid);
+ size, new_nid);
- ret = virt_to_abs(ret);
+ ret = __pa(ret);
dbg("alloc_bootmem %lx %lx\n", ret, size);
}
- return ret;
+ return (void *)ret;
}
void __init do_init_bootmem(void)
{
int nid;
- int addr_cells, size_cells;
- struct device_node *memory = NULL;
+ unsigned int i;
static struct notifier_block ppc64_numa_nb = {
.notifier_call = cpu_numa_callback,
.priority = 1 /* Must run before sched domains notifier. */
@@ -581,99 +593,66 @@ void __init do_init_bootmem(void)
register_cpu_notifier(&ppc64_numa_nb);
for_each_online_node(nid) {
- unsigned long start_paddr, end_paddr;
- int i;
+ unsigned long start_pfn, end_pfn, pages_present;
unsigned long bootmem_paddr;
unsigned long bootmap_pages;
- start_paddr = init_node_data[nid].node_start_pfn * PAGE_SIZE;
- end_paddr = init_node_data[nid].node_end_pfn * PAGE_SIZE;
+ get_region(nid, &start_pfn, &end_pfn, &pages_present);
/* Allocate the node structure node local if possible */
- NODE_DATA(nid) = (struct pglist_data *)careful_allocation(nid,
+ NODE_DATA(nid) = careful_allocation(nid,
sizeof(struct pglist_data),
- SMP_CACHE_BYTES, end_paddr);
- NODE_DATA(nid) = abs_to_virt(NODE_DATA(nid));
+ SMP_CACHE_BYTES, end_pfn);
+ NODE_DATA(nid) = __va(NODE_DATA(nid));
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
dbg("node %d\n", nid);
dbg("NODE_DATA() = %p\n", NODE_DATA(nid));
NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
- NODE_DATA(nid)->node_start_pfn =
- init_node_data[nid].node_start_pfn;
- NODE_DATA(nid)->node_spanned_pages =
- end_paddr - start_paddr;
+ NODE_DATA(nid)->node_start_pfn = start_pfn;
+ NODE_DATA(nid)->node_spanned_pages = end_pfn - start_pfn;
if (NODE_DATA(nid)->node_spanned_pages == 0)
continue;
- dbg("start_paddr = %lx\n", start_paddr);
- dbg("end_paddr = %lx\n", end_paddr);
+ dbg("start_paddr = %lx\n", start_pfn << PAGE_SHIFT);
+ dbg("end_paddr = %lx\n", end_pfn << PAGE_SHIFT);
- bootmap_pages = bootmem_bootmap_pages((end_paddr - start_paddr) >> PAGE_SHIFT);
+ bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
+ bootmem_paddr = (unsigned long)careful_allocation(nid,
+ bootmap_pages << PAGE_SHIFT,
+ PAGE_SIZE, end_pfn);
+ memset(__va(bootmem_paddr), 0, bootmap_pages << PAGE_SHIFT);
- bootmem_paddr = careful_allocation(nid,
- bootmap_pages << PAGE_SHIFT,
- PAGE_SIZE, end_paddr);
- memset(abs_to_virt(bootmem_paddr), 0,
- bootmap_pages << PAGE_SHIFT);
dbg("bootmap_paddr = %lx\n", bootmem_paddr);
init_bootmem_node(NODE_DATA(nid), bootmem_paddr >> PAGE_SHIFT,
- start_paddr >> PAGE_SHIFT,
- end_paddr >> PAGE_SHIFT);
+ start_pfn, end_pfn);
- /*
- * We need to do another scan of all memory sections to
- * associate memory with the correct node.
- */
- addr_cells = get_mem_addr_cells();
- size_cells = get_mem_size_cells();
- memory = NULL;
- while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
- unsigned long mem_start, mem_size;
- int numa_domain, ranges;
- unsigned int *memcell_buf;
- unsigned int len;
-
- memcell_buf = (unsigned int *)get_property(memory, "reg", &len);
- if (!memcell_buf || len <= 0)
- continue;
+ /* Add free regions on this node */
+ for (i = 0; init_node_data[i].end_pfn; i++) {
+ unsigned long start, end;
- ranges = memory->n_addrs; /* ranges in cell */
-new_range:
- mem_start = read_n_cells(addr_cells, &memcell_buf);
- mem_size = read_n_cells(size_cells, &memcell_buf);
- if (numa_enabled) {
- numa_domain = of_node_numa_domain(memory);
- if (numa_domain >= MAX_NUMNODES)
- numa_domain = 0;
- } else
- numa_domain = 0;
-
- if (numa_domain != nid)
+ if (init_node_data[i].nid != nid)
continue;
- mem_size = numa_enforce_memory_limit(mem_start, mem_size);
- if (mem_size) {
- dbg("free_bootmem %lx %lx\n", mem_start, mem_size);
- free_bootmem_node(NODE_DATA(nid), mem_start, mem_size);
- }
+ start = init_node_data[i].start_pfn << PAGE_SHIFT;
+ end = init_node_data[i].end_pfn << PAGE_SHIFT;
- if (--ranges) /* process all ranges in cell */
- goto new_range;
+ dbg("free_bootmem %lx %lx\n", start, end - start);
+ free_bootmem_node(NODE_DATA(nid), start, end - start);
}
- /*
- * Mark reserved regions on this node
- */
+ /* Mark reserved regions on this node */
for (i = 0; i < lmb.reserved.cnt; i++) {
unsigned long physbase = lmb.reserved.region[i].base;
unsigned long size = lmb.reserved.region[i].size;
+ unsigned long start_paddr = start_pfn << PAGE_SHIFT;
+ unsigned long end_paddr = end_pfn << PAGE_SHIFT;
- if (pa_to_nid(physbase) != nid &&
- pa_to_nid(physbase+size-1) != nid)
+ if (early_pfn_to_nid(physbase >> PAGE_SHIFT) != nid &&
+ early_pfn_to_nid((physbase+size-1) >> PAGE_SHIFT) != nid)
continue;
if (physbase < end_paddr &&
@@ -693,46 +672,19 @@ void __init do_init_bootmem(void)
size);
}
}
- /*
- * This loop may look famaliar, but we have to do it again
- * after marking our reserved memory to mark memory present
- * for sparsemem.
- */
- addr_cells = get_mem_addr_cells();
- size_cells = get_mem_size_cells();
- memory = NULL;
- while ((memory = of_find_node_by_type(memory, "memory")) != NULL) {
- unsigned long mem_start, mem_size;
- int numa_domain, ranges;
- unsigned int *memcell_buf;
- unsigned int len;
-
- memcell_buf = (unsigned int *)get_property(memory, "reg", &len);
- if (!memcell_buf || len <= 0)
- continue;
- ranges = memory->n_addrs; /* ranges in cell */
-new_range2:
- mem_start = read_n_cells(addr_cells, &memcell_buf);
- mem_size = read_n_cells(size_cells, &memcell_buf);
- if (numa_enabled) {
- numa_domain = of_node_numa_domain(memory);
- if (numa_domain >= MAX_NUMNODES)
- numa_domain = 0;
- } else
- numa_domain = 0;
-
- if (numa_domain != nid)
+ /* Add regions into sparsemem */
+ for (i = 0; init_node_data[i].end_pfn; i++) {
+ unsigned long start, end;
+
+ if (init_node_data[i].nid != nid)
continue;
- mem_size = numa_enforce_memory_limit(mem_start, mem_size);
- memory_present(numa_domain, mem_start >> PAGE_SHIFT,
- (mem_start + mem_size) >> PAGE_SHIFT);
+ start = init_node_data[i].start_pfn;
+ end = init_node_data[i].end_pfn;
- if (--ranges) /* process all ranges in cell */
- goto new_range2;
+ memory_present(nid, start, end);
}
-
}
}
@@ -746,21 +698,18 @@ void __init paging_init(void)
memset(zholes_size, 0, sizeof(zholes_size));
for_each_online_node(nid) {
- unsigned long start_pfn;
- unsigned long end_pfn;
+ unsigned long start_pfn, end_pfn, pages_present;
- start_pfn = init_node_data[nid].node_start_pfn;
- end_pfn = init_node_data[nid].node_end_pfn;
+ get_region(nid, &start_pfn, &end_pfn, &pages_present);
zones_size[ZONE_DMA] = end_pfn - start_pfn;
- zholes_size[ZONE_DMA] = zones_size[ZONE_DMA] -
- init_node_data[nid].node_present_pages;
+ zholes_size[ZONE_DMA] = zones_size[ZONE_DMA] - pages_present;
dbg("free_area_init node %d %lx %lx (hole: %lx)\n", nid,
zones_size[ZONE_DMA], start_pfn, zholes_size[ZONE_DMA]);
- free_area_init_node(nid, NODE_DATA(nid), zones_size,
- start_pfn, zholes_size);
+ free_area_init_node(nid, NODE_DATA(nid), zones_size, start_pfn,
+ zholes_size);
}
}
diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index e3a024e324b62f846fb11eb37c2c1059ffc5967c..a3401b46f3bab2f6da3f6aaa701d1a249320ac00 100644
--- a/arch/powerpc/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -14,7 +14,6 @@
#include <asm/system.h>
#include <asm/processor.h>
#include <asm/cputable.h>
-#include <asm/systemcfg.h>
#include <asm/rtas.h>
#include <asm/oprofile_impl.h>
#include <asm/reg.h>
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 00cf331a1dc4dd1c53de8e72c044611f5b8a1ee2..a6f628d4c9dc59130e2c226b7abf6348fa9764d0 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -27,7 +27,6 @@
#include <asm/prom.h>
#include <asm/nvram.h>
#include <asm/atomic.h>
-#include <asm/systemcfg.h>
#if 0
#define DEBUG(A...) printk(KERN_ERR A)
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index e94247c28d422a321def8829c0ca3db2daa8429e..31990829310c325716c6cad160863f8ee0847c6b 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -306,9 +306,7 @@ static void __init fw_feature_init(void)
}
of_node_put(dn);
- no_rtas:
- printk(KERN_INFO "firmware_features = 0x%lx\n",
- ppc64_firmware_features);
+no_rtas:
DBG(" <- fw_feature_init()\n");
}
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index 3ba794ca3288c72fbed747cf1f254fdd5c8ed59a..5800cde7d5adf66c10699b757564d09d3b07fcf8 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -46,7 +46,7 @@
#include <asm/rtas.h>
#include <asm/pSeries_reconfig.h>
#include <asm/mpic.h>
-#include <asm/systemcfg.h>
+#include <asm/vdso_datapage.h>
#include "plpar_wrappers.h"
@@ -97,7 +97,7 @@ int pSeries_cpu_disable(void)
int cpu = smp_processor_id();
cpu_clear(cpu, cpu_online_map);
- _systemcfg->processorCount--;
+ vdso_data->processorCount--;
/*fix boot_cpuid here*/
if (cpu == boot_cpuid)
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index cfcb2a56d6625d9c9c24edb94cc6aa63504874c1..ef4356b29a979ff08459c9c500dd5d9a93fdded6 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -1467,17 +1467,23 @@ read_spr(int n)
{
unsigned int instrs[2];
unsigned long (*code)(void);
- unsigned long opd[3];
unsigned long ret = -1UL;
+#ifdef CONFIG_PPC64
+ unsigned long opd[3];
- instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(void)) opd;
+#else
+ code = (unsigned long (*)(void)) instrs;
+#endif
+
+ /* mfspr r3,n; blr */
+ instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(void)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;
@@ -1499,16 +1505,21 @@ write_spr(int n, unsigned long val)
{
unsigned int instrs[2];
unsigned long (*code)(unsigned long);
+#ifdef CONFIG_PPC64
unsigned long opd[3];
- instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(unsigned long)) opd;
+#else
+ code = (unsigned long (*)(unsigned long)) instrs;
+#endif
+
+ instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(unsigned long)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;
diff --git a/arch/ppc/kernel/asm-offsets.c b/arch/ppc/kernel/asm-offsets.c
index 968261d6957223a88b3812a414ac0574bb365667..fe0e767fb94ed51f916ce087be3f5efdbd70ea8f 100644
--- a/arch/ppc/kernel/asm-offsets.c
+++ b/arch/ppc/kernel/asm-offsets.c
@@ -25,6 +25,7 @@
#include <asm/processor.h>
#include <asm/cputable.h>
#include <asm/thread_info.h>
+#include <asm/vdso_datapage.h>
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -143,5 +144,32 @@ main(void)
DEFINE(TASK_SIZE, TASK_SIZE);
DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28);
+
+ /* datapage offsets for use by vdso */
+ DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp));
+ DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec));
+ DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs));
+ DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec));
+ DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count));
+ DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest));
+ DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime));
+ DEFINE(CFG_SYSCALL_MAP32, offsetof(struct vdso_data, syscall_map_32));
+ DEFINE(WTOM_CLOCK_SEC, offsetof(struct vdso_data, wtom_clock_sec));
+ DEFINE(WTOM_CLOCK_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
+ DEFINE(TVAL32_TV_SEC, offsetof(struct timeval, tv_sec));
+ DEFINE(TVAL32_TV_USEC, offsetof(struct timeval, tv_usec));
+ DEFINE(TSPEC32_TV_SEC, offsetof(struct timespec, tv_sec));
+ DEFINE(TSPEC32_TV_NSEC, offsetof(struct timespec, tv_nsec));
+
+ /* timeval/timezone offsets for use by vdso */
+ DEFINE(TZONE_TZ_MINWEST, offsetof(struct timezone, tz_minuteswest));
+ DEFINE(TZONE_TZ_DSTTIME, offsetof(struct timezone, tz_dsttime));
+
+ /* Other bits used by the vdso */
+ DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
+ DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
+ DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
+ DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
+
return 0;
}
diff --git a/arch/ppc/syslib/cpm2_pic.c b/arch/ppc/syslib/cpm2_pic.c
index c867be6981cb34f615755c888d6212737eb53cbf..29d95d415ceb7f70accd8c8381f9666f748be467 100644
--- a/arch/ppc/syslib/cpm2_pic.c
+++ b/arch/ppc/syslib/cpm2_pic.c
@@ -37,7 +37,7 @@ static u_char irq_to_siureg[] = {
static u_char irq_to_siubit[] = {
0, 15, 14, 13, 12, 11, 10, 9,
8, 7, 6, 5, 4, 3, 2, 1,
- 2, 1, 15, 14, 13, 12, 11, 10,
+ 2, 1, 0, 14, 13, 12, 11, 10,
9, 8, 7, 6, 5, 4, 3, 0,
31, 30, 29, 28, 27, 26, 25, 24,
23, 22, 21, 20, 19, 18, 17, 16,
diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index c9d32db9d76a0e0d84f87ec13e0b14cb6091b262..9d10c12e87fee6863ae0e0567f43b1d9453aa90f 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -279,17 +279,12 @@ config ARCH_FLATMEM_ENABLE
def_bool y
depends on !NUMA
-config ARCH_DISCONTIGMEM_ENABLE
- def_bool y
- depends on SMP && PPC_PSERIES
-
-config ARCH_DISCONTIGMEM_DEFAULT
+config ARCH_SPARSEMEM_ENABLE
def_bool y
- depends on ARCH_DISCONTIGMEM_ENABLE
-config ARCH_SPARSEMEM_ENABLE
+config ARCH_SPARSEMEM_DEFAULT
def_bool y
- depends on ARCH_DISCONTIGMEM_ENABLE
+ depends on NUMA
source "mm/Kconfig"
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 58b19f1076568c85ae7cc17d903b7db4050b72a5..dac4cc20fa939af64fdec5502df18e8f68142c36 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -13,10 +13,8 @@ endif
obj-y += idle.o dma.o \
align.o \
- udbg.o \
rtc.o \
- iommu.o vdso.o
-obj-y += vdso32/ vdso64/
+ iommu.o
pci-obj-$(CONFIG_PPC_MULTIPLATFORM) += pci_dn.o pci_direct_iommu.o
@@ -27,8 +25,6 @@ ifneq ($(CONFIG_PPC_MERGE),y)
obj-$(CONFIG_PPC_MULTIPLATFORM) += prom_init.o
endif
-obj-$(CONFIG_PPC_PSERIES) += udbg_16550.o
-
obj-$(CONFIG_KEXEC) += machine_kexec.o
obj-$(CONFIG_MODULES) += module.o
ifneq ($(CONFIG_PPC_MERGE),y)
@@ -40,10 +36,6 @@ obj-$(CONFIG_BOOTX_TEXT) += btext.o
endif
obj-$(CONFIG_HVCS) += hvcserver.o
-obj-$(CONFIG_PPC_PMAC) += udbg_scc.o
-
-obj-$(CONFIG_PPC_MAPLE) += udbg_16550.o
-
obj-$(CONFIG_KPROBES) += kprobes.o
ifneq ($(CONFIG_PPC_MERGE),y)
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 492bca6137ebc26fc8ec98870e8b5a50708bfddf..5e089deb0a2b393d5dc5157fad57262a8deab0c4 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -186,7 +186,8 @@ _KPROBE(__flush_icache_range)
bdnz 2b
isync
blr
- .previous .text
+
+ .text
/*
* Like above, but only do the D-cache.
*
diff --git a/arch/ppc64/kernel/vdso32/gettimeofday.S b/arch/ppc64/kernel/vdso32/gettimeofday.S
deleted file mode 100644
index e243c1d24af79e7e87bb3920b8493b6369d808a8..0000000000000000000000000000000000000000
--- a/arch/ppc64/kernel/vdso32/gettimeofday.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Userland implementation of gettimeofday() for 32 bits processes in a
- * ppc64 kernel for use in the vDSO
- *
- * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org), IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/vdso.h>
-#include <asm/asm-offsets.h>
-#include <asm/unistd.h>
-
- .text
-/*
- * Exact prototype of gettimeofday
- *
- * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
- *
- */
-V_FUNCTION_BEGIN(__kernel_gettimeofday)
- .cfi_startproc
- mflr r12
- .cfi_register lr,r12
-
- mr r10,r3 /* r10 saves tv */
- mr r11,r4 /* r11 saves tz */
- bl __get_datapage@local /* get data page */
- mr r9, r3 /* datapage ptr in r9 */
- bl __do_get_xsec@local /* get xsec from tb & kernel */
- bne- 2f /* out of line -> do syscall */
-
- /* seconds are xsec >> 20 */
- rlwinm r5,r4,12,20,31
- rlwimi r5,r3,12,0,19
- stw r5,TVAL32_TV_SEC(r10)
-
- /* get remaining xsec and convert to usec. we scale
- * up remaining xsec by 12 bits and get the top 32 bits
- * of the multiplication
- */
- rlwinm r5,r4,12,0,19
- lis r6,1000000@h
- ori r6,r6,1000000@l
- mulhwu r5,r5,r6
- stw r5,TVAL32_TV_USEC(r10)
-
- cmpli cr0,r11,0 /* check if tz is NULL */
- beq 1f
- lwz r4,CFG_TZ_MINUTEWEST(r9)/* fill tz */
- lwz r5,CFG_TZ_DSTTIME(r9)
- stw r4,TZONE_TZ_MINWEST(r11)
- stw r5,TZONE_TZ_DSTTIME(r11)
-
-1: mtlr r12
- li r3,0
- blr
-
-2: mr r3,r10
- mr r4,r11
- li r0,__NR_gettimeofday
- sc
- b 1b
- .cfi_endproc
-V_FUNCTION_END(__kernel_gettimeofday)
-
-/*
- * This is the core of gettimeofday(), it returns the xsec
- * value in r3 & r4 and expects the datapage ptr (non clobbered)
- * in r9. clobbers r0,r4,r5,r6,r7,r8
-*/
-__do_get_xsec:
- .cfi_startproc
- /* Check for update count & load values. We use the low
- * order 32 bits of the update count
- */
-1: lwz r8,(CFG_TB_UPDATE_COUNT+4)(r9)
- andi. r0,r8,1 /* pending update ? loop */
- bne- 1b
- xor r0,r8,r8 /* create dependency */
- add r9,r9,r0
-
- /* Load orig stamp (offset to TB) */
- lwz r5,CFG_TB_ORIG_STAMP(r9)
- lwz r6,(CFG_TB_ORIG_STAMP+4)(r9)
-
- /* Get a stable TB value */
-2: mftbu r3
- mftbl r4
- mftbu r0
- cmpl cr0,r3,r0
- bne- 2b
-
- /* Substract tb orig stamp. If the high part is non-zero, we jump to the
- * slow path which call the syscall. If it's ok, then we have our 32 bits
- * tb_ticks value in r7
- */
- subfc r7,r6,r4
- subfe. r0,r5,r3
- bne- 3f
-
- /* Load scale factor & do multiplication */
- lwz r5,CFG_TB_TO_XS(r9) /* load values */
- lwz r6,(CFG_TB_TO_XS+4)(r9)
- mulhwu r4,r7,r5
- mulhwu r6,r7,r6
- mullw r0,r7,r5
- addc r6,r6,r0
-
- /* At this point, we have the scaled xsec value in r4 + XER:CA
- * we load & add the stamp since epoch
- */
- lwz r5,CFG_STAMP_XSEC(r9)
- lwz r6,(CFG_STAMP_XSEC+4)(r9)
- adde r4,r4,r6
- addze r3,r5
-
- /* We now have our result in r3,r4. We create a fake dependency
- * on that result and re-check the counter
- */
- xor r0,r4,r4
- add r9,r9,r0
- lwz r0,(CFG_TB_UPDATE_COUNT+4)(r9)
- cmpl cr0,r8,r0 /* check if updated */
- bne- 1b
-
- /* Warning ! The caller expects CR:EQ to be set to indicate a
- * successful calculation (so it won't fallback to the syscall
- * method). We have overriden that CR bit in the counter check,
- * but fortunately, the loop exit condition _is_ CR:EQ set, so
- * we can exit safely here. If you change this code, be careful
- * of that side effect.
- */
-3: blr
- .cfi_endproc
diff --git a/arch/ppc64/kernel/vdso64/gettimeofday.S b/arch/ppc64/kernel/vdso64/gettimeofday.S
deleted file mode 100644
index f6df8028570a795bab27779a06a18eb3785dc466..0000000000000000000000000000000000000000
--- a/arch/ppc64/kernel/vdso64/gettimeofday.S
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Userland implementation of gettimeofday() for 64 bits processes in a
- * ppc64 kernel for use in the vDSO
- *
- * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org),
- * IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/config.h>
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-#include <asm/vdso.h>
-#include <asm/asm-offsets.h>
-
- .text
-/*
- * Exact prototype of gettimeofday
- *
- * int __kernel_gettimeofday(struct timeval *tv, struct timezone *tz);
- *
- */
-V_FUNCTION_BEGIN(__kernel_gettimeofday)
- .cfi_startproc
- mflr r12
- .cfi_register lr,r12
-
- mr r11,r3 /* r11 holds tv */
- mr r10,r4 /* r10 holds tz */
- bl V_LOCAL_FUNC(__get_datapage) /* get data page */
- bl V_LOCAL_FUNC(__do_get_xsec) /* get xsec from tb & kernel */
- lis r7,15 /* r7 = 1000000 = USEC_PER_SEC */
- ori r7,r7,16960
- rldicl r5,r4,44,20 /* r5 = sec = xsec / XSEC_PER_SEC */
- rldicr r6,r5,20,43 /* r6 = sec * XSEC_PER_SEC */
- std r5,TVAL64_TV_SEC(r11) /* store sec in tv */
- subf r0,r6,r4 /* r0 = xsec = (xsec - r6) */
- mulld r0,r0,r7 /* usec = (xsec * USEC_PER_SEC) / XSEC_PER_SEC */
- rldicl r0,r0,44,20
- cmpldi cr0,r10,0 /* check if tz is NULL */
- std r0,TVAL64_TV_USEC(r11) /* store usec in tv */
- beq 1f
- lwz r4,CFG_TZ_MINUTEWEST(r3)/* fill tz */
- lwz r5,CFG_TZ_DSTTIME(r3)
- stw r4,TZONE_TZ_MINWEST(r10)
- stw r5,TZONE_TZ_DSTTIME(r10)
-1: mtlr r12
- li r3,0 /* always success */
- blr
- .cfi_endproc
-V_FUNCTION_END(__kernel_gettimeofday)
-
-
-/*
- * This is the core of gettimeofday(), it returns the xsec
- * value in r4 and expects the datapage ptr (non clobbered)
- * in r3. clobbers r0,r4,r5,r6,r7,r8
-*/
-V_FUNCTION_BEGIN(__do_get_xsec)
- .cfi_startproc
- /* check for update count & load values */
-1: ld r7,CFG_TB_UPDATE_COUNT(r3)
- andi. r0,r4,1 /* pending update ? loop */
- bne- 1b
- xor r0,r4,r4 /* create dependency */
- add r3,r3,r0
-
- /* Get TB & offset it */
- mftb r8
- ld r9,CFG_TB_ORIG_STAMP(r3)
- subf r8,r9,r8
-
- /* Scale result */
- ld r5,CFG_TB_TO_XS(r3)
- mulhdu r8,r8,r5
-
- /* Add stamp since epoch */
- ld r6,CFG_STAMP_XSEC(r3)
- add r4,r6,r8
-
- xor r0,r4,r4
- add r3,r3,r0
- ld r0,CFG_TB_UPDATE_COUNT(r3)
- cmpld cr0,r0,r7 /* check if updated */
- bne- 1b
- blr
- .cfi_endproc
-V_FUNCTION_END(__do_get_xsec)
diff --git a/include/asm-powerpc/auxvec.h b/include/asm-powerpc/auxvec.h
index 79d8c47323093508bf0b78223712e60115c81386..19a099b62cd6aae4100129e52bfa1679e0bba9e8 100644
--- a/include/asm-powerpc/auxvec.h
+++ b/include/asm-powerpc/auxvec.h
@@ -14,8 +14,6 @@
/* The vDSO location. We have to use the same value as x86 for glibc's
* sake :-)
*/
-#ifdef __powerpc64__
#define AT_SYSINFO_EHDR 33
-#endif
#endif
diff --git a/include/asm-powerpc/elf.h b/include/asm-powerpc/elf.h
index feac3458d71f693a9a31b31f263f5b0106978fc8..3dcd65edf97805daf4f496fc4ecaf83f3cfe81f1 100644
--- a/include/asm-powerpc/elf.h
+++ b/include/asm-powerpc/elf.h
@@ -269,14 +269,12 @@ extern int dcache_bsize;
extern int icache_bsize;
extern int ucache_bsize;
-#ifdef __powerpc64__
+/* vDSO has arch_setup_additional_pages */
+#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
struct linux_binprm;
-#define ARCH_HAS_SETUP_ADDITIONAL_PAGES /* vDSO has arch_setup_additional_pages */
-extern int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack);
+extern int arch_setup_additional_pages(struct linux_binprm *bprm,
+ int executable_stack);
#define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
-#else
-#define VDSO_AUX_ENT(a,b)
-#endif /* __powerpc64__ */
/*
* The requirements here are:
diff --git a/include/asm-powerpc/irq.h b/include/asm-powerpc/irq.h
index c9fbcede0ef9faf5773db4d69663e8b7c3661d52..8eb7e857ec4cd167176c78b644ee046a6fbe09b5 100644
--- a/include/asm-powerpc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -389,6 +389,7 @@ extern u64 ppc64_interrupt_controller;
#define SIU_INT_TIMER4 ((uint)0x0f + CPM_IRQ_OFFSET)
#define SIU_INT_TMCNT ((uint)0x10 + CPM_IRQ_OFFSET)
#define SIU_INT_PIT ((uint)0x11 + CPM_IRQ_OFFSET)
+#define SIU_INT_PCI ((uint)0x12 + CPM_IRQ_OFFSET)
#define SIU_INT_IRQ1 ((uint)0x13 + CPM_IRQ_OFFSET)
#define SIU_INT_IRQ2 ((uint)0x14 + CPM_IRQ_OFFSET)
#define SIU_INT_IRQ3 ((uint)0x15 + CPM_IRQ_OFFSET)
diff --git a/include/asm-powerpc/processor.h b/include/asm-powerpc/processor.h
index f6f186b56b0f57966733f945db65fd42525232d5..d12382d292d421931234e1d59007e4f070bf376b 100644
--- a/include/asm-powerpc/processor.h
+++ b/include/asm-powerpc/processor.h
@@ -177,8 +177,8 @@ struct thread_struct {
#ifdef CONFIG_PPC64
unsigned long start_tb; /* Start purr when proc switched in */
unsigned long accum_tb; /* Total accumilated purr for process */
- unsigned long vdso_base; /* base of the vDSO library */
#endif
+ unsigned long vdso_base; /* base of the vDSO library */
unsigned long dabr; /* Data address breakpoint register */
#ifdef CONFIG_ALTIVEC
/* Complete AltiVec register set */
diff --git a/include/asm-powerpc/sparsemem.h b/include/asm-powerpc/sparsemem.h
index 58d2aab416f8f21f7574acedeefaeffcf43878b8..ba1b34fdb967e86c7cd761f8e91c2317cd5adf36 100644
--- a/include/asm-powerpc/sparsemem.h
+++ b/include/asm-powerpc/sparsemem.h
@@ -8,8 +8,8 @@
* MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space
*/
#define SECTION_SIZE_BITS 24
-#define MAX_PHYSADDR_BITS 38
-#define MAX_PHYSMEM_BITS 36
+#define MAX_PHYSADDR_BITS 44
+#define MAX_PHYSMEM_BITS 44
#ifdef CONFIG_MEMORY_HOTPLUG
extern void create_section_mapping(unsigned long start, unsigned long end);
diff --git a/include/asm-powerpc/systemcfg.h b/include/asm-powerpc/systemcfg.h
deleted file mode 100644
index 36b5cbe466f19911d53ef88d3950790be6b9d133..0000000000000000000000000000000000000000
--- a/include/asm-powerpc/systemcfg.h
+++ /dev/null
@@ -1,64 +0,0 @@
-#ifndef _SYSTEMCFG_H
-#define _SYSTEMCFG_H
-
-/*
- * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-/* Change Activity:
- * 2002/09/30 : bergner : Created
- * End Change Activity
- */
-
-/*
- * If the major version changes we are incompatible.
- * Minor version changes are a hint.
- */
-#define SYSTEMCFG_MAJOR 1
-#define SYSTEMCFG_MINOR 1
-
-#ifndef __ASSEMBLY__
-
-#include <linux/unistd.h>
-
-#define SYSCALL_MAP_SIZE ((__NR_syscalls + 31) / 32)
-
-struct systemcfg {
- __u8 eye_catcher[16]; /* Eyecatcher: SYSTEMCFG:PPC64 0x00 */
- struct { /* Systemcfg version numbers */
- __u32 major; /* Major number 0x10 */
- __u32 minor; /* Minor number 0x14 */
- } version;
-
- __u32 platform; /* Platform flags 0x18 */
- __u32 processor; /* Processor type 0x1C */
- __u64 processorCount; /* # of physical processors 0x20 */
- __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */
- __u64 tb_orig_stamp; /* Timebase at boot 0x30 */
- __u64 tb_ticks_per_sec; /* Timebase tics / sec 0x38 */
- __u64 tb_to_xs; /* Inverse of TB to 2^20 0x40 */
- __u64 stamp_xsec; /* 0x48 */
- __u64 tb_update_count; /* Timebase atomicity ctr 0x50 */
- __u32 tz_minuteswest; /* Minutes west of Greenwich 0x58 */
- __u32 tz_dsttime; /* Type of dst correction 0x5C */
- /* next four are no longer used except to be exported to /proc */
- __u32 dcache_size; /* L1 d-cache size 0x60 */
- __u32 dcache_line_size; /* L1 d-cache line size 0x64 */
- __u32 icache_size; /* L1 i-cache size 0x68 */
- __u32 icache_line_size; /* L1 i-cache line size 0x6C */
- __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of available syscalls 0x70 */
- __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of available syscalls */
-};
-
-#ifdef __KERNEL__
-extern struct systemcfg *_systemcfg; /* to be renamed */
-#endif
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _SYSTEMCFG_H */
diff --git a/include/asm-powerpc/topology.h b/include/asm-powerpc/topology.h
index 2512e3836bf4de90ba130054b7a889920ab5031b..015d28746e1b0a8e0590db4fcd80c991570d2295 100644
--- a/include/asm-powerpc/topology.h
+++ b/include/asm-powerpc/topology.h
@@ -9,15 +9,7 @@
static inline int cpu_to_node(int cpu)
{
- int node;
-
- node = numa_cpu_lookup_table[cpu];
-
-#ifdef DEBUG_NUMA
- BUG_ON(node == -1);
-#endif
-
- return node;
+ return numa_cpu_lookup_table[cpu];
}
#define parent_node(node) (node)
@@ -37,8 +29,6 @@ static inline int node_to_first_cpu(int node)
#define pcibus_to_node(node) (-1)
#define pcibus_to_cpumask(bus) (cpu_online_map)
-#define nr_cpus_node(node) (nr_cpus_in_node[node])
-
/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) { \
.span = CPU_MASK_NONE, \
diff --git a/include/asm-ppc64/udbg.h b/include/asm-powerpc/udbg.h
similarity index 90%
rename from include/asm-ppc64/udbg.h
rename to include/asm-powerpc/udbg.h
index e3b927991851d357e6efe9d1ce30bda3f6d298ee..a383383bc4d43006f76dcad304ef0346c336a4fd 100644
--- a/include/asm-ppc64/udbg.h
+++ b/include/asm-powerpc/udbg.h
@@ -1,9 +1,3 @@
-#ifndef __UDBG_HDR
-#define __UDBG_HDR
-
-#include <linux/compiler.h>
-#include <linux/init.h>
-
/*
* c 2001 PPC 64 Team, IBM Corp
*
@@ -13,6 +7,12 @@
* 2 of the License, or (at your option) any later version.
*/
+#ifndef _ASM_POWERPC_UDBG_H
+#define _ASM_POWERPC_UDBG_H
+
+#include <linux/compiler.h>
+#include <linux/init.h>
+
extern void (*udbg_putc)(unsigned char c);
extern unsigned char (*udbg_getc)(void);
extern int (*udbg_getc_poll)(void);
@@ -28,4 +28,4 @@ extern void udbg_init_uart(void __iomem *comport, unsigned int speed);
struct device_node;
extern void udbg_init_scc(struct device_node *np);
-#endif
+#endif /* _ASM_POWERPC_UDBG_H */
diff --git a/include/asm-ppc64/vdso.h b/include/asm-powerpc/vdso.h
similarity index 100%
rename from include/asm-ppc64/vdso.h
rename to include/asm-powerpc/vdso.h
diff --git a/include/asm-powerpc/vdso_datapage.h b/include/asm-powerpc/vdso_datapage.h
new file mode 100644
index 0000000000000000000000000000000000000000..fc323b51366be431bdb74a77cbcd9d1a627b6bf0
--- /dev/null
+++ b/include/asm-powerpc/vdso_datapage.h
@@ -0,0 +1,108 @@
+#ifndef _VDSO_DATAPAGE_H
+#define _VDSO_DATAPAGE_H
+
+/*
+ * Copyright (C) 2002 Peter Bergner <bergner@vnet.ibm.com>, IBM
+ * Copyright (C) 2005 Benjamin Herrenschmidy <benh@kernel.crashing.org>,
+ * IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+
+/*
+ * Note about this structure:
+ *
+ * This structure was historically called systemcfg and exposed to
+ * userland via /proc/ppc64/systemcfg. Unfortunately, this became an
+ * ABI issue as some proprietary software started relying on being able
+ * to mmap() it, thus we have to keep the base layout at least for a
+ * few kernel versions.
+ *
+ * However, since ppc32 doesn't suffer from this backward handicap,
+ * a simpler version of the data structure is used there with only the
+ * fields actually used by the vDSO.
+ *
+ */
+
+/*
+ * If the major version changes we are incompatible.
+ * Minor version changes are a hint.
+ */
+#define SYSTEMCFG_MAJOR 1
+#define SYSTEMCFG_MINOR 1
+
+#ifndef __ASSEMBLY__
+
+#include <linux/unistd.h>
+
+#define SYSCALL_MAP_SIZE ((__NR_syscalls + 31) / 32)
+
+/*
+ * So here is the ppc64 backward compatible version
+ */
+
+#ifdef CONFIG_PPC64
+
+struct vdso_data {
+ __u8 eye_catcher[16]; /* Eyecatcher: SYSTEMCFG:PPC64 0x00 */
+ struct { /* Systemcfg version numbers */
+ __u32 major; /* Major number 0x10 */
+ __u32 minor; /* Minor number 0x14 */
+ } version;
+
+ __u32 platform; /* Platform flags 0x18 */
+ __u32 processor; /* Processor type 0x1C */
+ __u64 processorCount; /* # of physical processors 0x20 */
+ __u64 physicalMemorySize; /* Size of real memory(B) 0x28 */
+ __u64 tb_orig_stamp; /* Timebase at boot 0x30 */
+ __u64 tb_ticks_per_sec; /* Timebase tics / sec 0x38 */
+ __u64 tb_to_xs; /* Inverse of TB to 2^20 0x40 */
+ __u64 stamp_xsec; /* 0x48 */
+ __u64 tb_update_count; /* Timebase atomicity ctr 0x50 */
+ __u32 tz_minuteswest; /* Minutes west of Greenwich 0x58 */
+ __u32 tz_dsttime; /* Type of dst correction 0x5C */
+ __u32 dcache_size; /* L1 d-cache size 0x60 */
+ __u32 dcache_line_size; /* L1 d-cache line size 0x64 */
+ __u32 icache_size; /* L1 i-cache size 0x68 */
+ __u32 icache_line_size; /* L1 i-cache line size 0x6C */
+
+ /* those additional ones don't have to be located anywhere
+ * special as they were not part of the original systemcfg
+ */
+ __s64 wtom_clock_sec; /* Wall to monotonic clock */
+ __s32 wtom_clock_nsec;
+ __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */
+ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+};
+
+#else /* CONFIG_PPC64 */
+
+/*
+ * And here is the simpler 32 bits version
+ */
+struct vdso_data {
+ __u64 tb_orig_stamp; /* Timebase at boot 0x30 */
+ __u64 tb_ticks_per_sec; /* Timebase tics / sec 0x38 */
+ __u64 tb_to_xs; /* Inverse of TB to 2^20 0x40 */
+ __u64 stamp_xsec; /* 0x48 */
+ __u32 tb_update_count; /* Timebase atomicity ctr 0x50 */
+ __u32 tz_minuteswest; /* Minutes west of Greenwich 0x58 */
+ __u32 tz_dsttime; /* Type of dst correction 0x5C */
+ __s32 wtom_clock_sec; /* Wall to monotonic clock */
+ __s32 wtom_clock_nsec;
+ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */
+};
+
+#endif /* CONFIG_PPC64 */
+
+#ifdef __KERNEL__
+extern struct vdso_data *vdso_data;
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _SYSTEMCFG_H */
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index fc44f7ca62d7699977e39918b543dbd658ea0d23..538e0c8ab2434758682d44d4e234e9f595b7ef6a 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -1,9 +1,12 @@
#ifndef _PPC_PAGE_H
#define _PPC_PAGE_H
+#include <linux/config.h>
+#include <asm/asm-compat.h>
+
/* PAGE_SHIFT determines the page size */
#define PAGE_SHIFT 12
-#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
/*
* Subtle: this is an int (not an unsigned long) and so it
@@ -169,5 +172,8 @@ extern __inline__ int get_order(unsigned long size)
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+/* We do define AT_SYSINFO_EHDR but don't use the gate mecanism */
+#define __HAVE_ARCH_GATE_AREA 1
+
#endif /* __KERNEL__ */
#endif /* _PPC_PAGE_H */
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-ppc64/mmzone.h
index 15e777ce0f4ab66fe61f64ff4fed055c4a86d7fc..54958d6cae0440353ade0ff8a73f8668a52e5bac 100644
--- a/include/asm-ppc64/mmzone.h
+++ b/include/asm-ppc64/mmzone.h
@@ -8,15 +8,14 @@
#define _ASM_MMZONE_H_
#include <linux/config.h>
-#include <asm/smp.h>
-/* generic non-linear memory support:
+/*
+ * generic non-linear memory support:
*
* 1) we will not split memory into more chunks than will fit into the
* flags field of the struct page
*/
-
#ifdef CONFIG_NEED_MULTIPLE_NODES
extern struct pglist_data *node_data[];
@@ -30,44 +29,11 @@ extern struct pglist_data *node_data[];
*/
extern int numa_cpu_lookup_table[];
-extern char *numa_memory_lookup_table;
extern cpumask_t numa_cpumask_lookup_table[];
-extern int nr_cpus_in_node[];
#ifdef CONFIG_MEMORY_HOTPLUG
extern unsigned long max_pfn;
#endif
-/* 16MB regions */
-#define MEMORY_INCREMENT_SHIFT 24
-#define MEMORY_INCREMENT (1UL << MEMORY_INCREMENT_SHIFT)
-
-/* NUMA debugging, will not work on a DLPAR machine */
-#undef DEBUG_NUMA
-
-static inline int pa_to_nid(unsigned long pa)
-{
- int nid;
-
-#ifdef CONFIG_MEMORY_HOTPLUG
- /* kludge hot added sections default to node 0 */
- if (pa >= (max_pfn << PAGE_SHIFT))
- return 0;
-#endif
- nid = numa_memory_lookup_table[pa >> MEMORY_INCREMENT_SHIFT];
-
-#ifdef DEBUG_NUMA
- /* the physical address passed in is not in the map for the system */
- if (nid == -1) {
- printk("bad address: %lx\n", pa);
- BUG();
- }
-#endif
-
- return nid;
-}
-
-#define node_localnr(pfn, nid) ((pfn) - NODE_DATA(nid)->node_start_pfn)
-
/*
* Following are macros that each numa implmentation must define.
*/
@@ -75,39 +41,10 @@ static inline int pa_to_nid(unsigned long pa)
#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn)
-#ifdef CONFIG_DISCONTIGMEM
-
-/*
- * Given a kernel address, find the home node of the underlying memory.
- */
-#define kvaddr_to_nid(kaddr) pa_to_nid(__pa(kaddr))
-
-#define pfn_to_nid(pfn) pa_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-/* Written this way to avoid evaluating arguments twice */
-#define discontigmem_pfn_to_page(pfn) \
-({ \
- unsigned long __tmp = pfn; \
- (NODE_DATA(pfn_to_nid(__tmp))->node_mem_map + \
- node_localnr(__tmp, pfn_to_nid(__tmp))); \
-})
-
-#define discontigmem_page_to_pfn(p) \
-({ \
- struct page *__tmp = p; \
- (((__tmp) - page_zone(__tmp)->zone_mem_map) + \
- page_zone(__tmp)->zone_start_pfn); \
-})
-
-/* XXX fix for discontiguous physical memory */
-#define discontigmem_pfn_valid(pfn) ((pfn) < num_physpages)
-
-#endif /* CONFIG_DISCONTIGMEM */
-
#endif /* CONFIG_NEED_MULTIPLE_NODES */
#ifdef CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID
-#define early_pfn_to_nid(pfn) pa_to_nid(((unsigned long)pfn) << PAGE_SHIFT)
+extern int __init early_pfn_to_nid(unsigned long pfn);
#endif
#endif /* _ASM_MMZONE_H_ */
diff --git a/include/asm-ppc64/page.h b/include/asm-ppc64/page.h
index e32f1187aa29730c0ab75f2253e089667ece11f3..3efc3288f7e9ce67afa7ab39af2baf84214382dc 100644
--- a/include/asm-ppc64/page.h
+++ b/include/asm-ppc64/page.h
@@ -279,11 +279,6 @@ extern u64 ppc64_pft_size; /* Log 2 of page table size */
#define __va(x) ((void *)((unsigned long)(x) + KERNELBASE))
-#ifdef CONFIG_DISCONTIGMEM
-#define page_to_pfn(page) discontigmem_page_to_pfn(page)
-#define pfn_to_page(pfn) discontigmem_pfn_to_page(pfn)
-#define pfn_valid(pfn) discontigmem_pfn_valid(pfn)
-#endif
#ifdef CONFIG_FLATMEM
#define pfn_to_page(pfn) (mem_map + (pfn))
#define page_to_pfn(page) ((unsigned long)((page) - mem_map))