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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 22:48:03 +1100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-29 22:48:03 +1100
commit21af0297c7e56024a5ccc4d8ad2a590f9ec371ba (patch)
tree5d288c1877b1ae9fbe24aa7fabd79565e73d3d2f /arch/mips/kernel
parent5ea293a9048d3a58cb0c840fa719d85ad14cba47 (diff)
parenta9d2517c7a5c8028fbc5296d3af3c75597d3d180 (diff)
downloadop-kernel-dev-21af0297c7e56024a5ccc4d8ad2a590f9ec371ba.zip
op-kernel-dev-21af0297c7e56024a5ccc4d8ad2a590f9ec371ba.tar.gz
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (68 commits) [MIPS] remove Documentation/mips/GT64120.README [MIPS] Malta: remaining bits of the board support code cleanup [MIPS] Malta: make the helper function static [MIPS] Malta: fix braces at single statement blocks [MIPS] Malta, Atlas: move an extern function declaration to the header file [MIPS] Malta: Use C89 style for comments [MIPS] Malta: else should follow close brace in malta_int.c [MIPS] Malta: remove a superfluous comment [MIPS] Malta: include <linux/cpu.h> instead of <asm/cpu.h> [MIPS] Malta, Atlas, Sead: remove an extern from .c files [MIPS] Malta: fix oversized lines in malta_int.c [MIPS] Malta: remove a dead function declaration [MIPS] Malta: use tabs not spaces [MIPS] Malta: set up the screen info in a separate function [MIPS] Malta: check the PCI clock frequency in a separate function [MIPS] Malta: use the KERN_ facility level in printk() [MIPS] Malta: use Linux kernel style for structure initialization [MIPS]: constify function pointer tables [MIPS] compat: handle argument endianess of sys32_(f)truncate64 with merge_64 [MIPS] Cobalt 64-bits kernels can be safely unmarked experimental ...
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/cpu-bugs64.c47
-rw-r--r--arch/mips/kernel/cpu-probe.c9
-rw-r--r--arch/mips/kernel/genex.S8
-rw-r--r--arch/mips/kernel/kspd.c3
-rw-r--r--arch/mips/kernel/linux32.c30
-rw-r--r--arch/mips/kernel/mips-mt.c1
-rw-r--r--arch/mips/kernel/pcspeaker.c28
-rw-r--r--arch/mips/kernel/proc.c3
-rw-r--r--arch/mips/kernel/rtlx.c1
-rw-r--r--arch/mips/kernel/setup.c7
-rw-r--r--arch/mips/kernel/smp-mt.c193
-rw-r--r--arch/mips/kernel/smp.c53
-rw-r--r--arch/mips/kernel/smtc-proc.c1
-rw-r--r--arch/mips/kernel/smtc.c1
-rw-r--r--arch/mips/kernel/time.c2
-rw-r--r--arch/mips/kernel/vpe.c1
16 files changed, 205 insertions, 183 deletions
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index af78456..417bb3e 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -18,6 +18,15 @@
#include <asm/mipsregs.h>
#include <asm/system.h>
+static char bug64hit[] __initdata =
+ "reliable operation impossible!\n%s";
+static char nowar[] __initdata =
+ "Please report to <linux-mips@linux-mips.org>.";
+static char r4kwar[] __initdata =
+ "Enable CPU_R4000_WORKAROUNDS to rectify.";
+static char daddiwar[] __initdata =
+ "Enable CPU_DADDI_WORKAROUNDS to rectify.";
+
static inline void align_mod(const int align, const int mod)
{
asm volatile(
@@ -155,13 +164,7 @@ static inline void check_mult_sh(void)
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#ifndef CONFIG_CPU_R4000
- "Configure for R4000 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !R4000_WAR ? r4kwar : nowar);
}
static volatile int daddi_ov __initdata = 0;
@@ -233,15 +236,11 @@ static inline void check_daddi(void)
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
- "Configure for R4000 or R4400 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
+int daddiu_bug __initdata = -1;
+
static inline void check_daddiu(void)
{
long v, w, tmp;
@@ -281,7 +280,9 @@ static inline void check_daddiu(void)
: "=&r" (v), "=&r" (w), "=&r" (tmp)
: "I" (0xffffffffffffdb9aUL), "I" (0x1234));
- if (v == w) {
+ daddiu_bug = v != w;
+
+ if (!daddiu_bug) {
printk("no.\n");
return;
}
@@ -303,18 +304,16 @@ static inline void check_daddiu(void)
}
printk("no.\n");
- panic("Reliable operation impossible!\n"
-#if !defined(CONFIG_CPU_R4000) && !defined(CONFIG_CPU_R4400)
- "Configure for R4000 or R4400 to enable the workaround."
-#else
- "Please report to <linux-mips@linux-mips.org>."
-#endif
- );
+ panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
-void __init check_bugs64(void)
+void __init check_bugs64_early(void)
{
check_mult_sh();
- check_daddi();
check_daddiu();
}
+
+void __init check_bugs64(void)
+{
+ check_daddi();
+}
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 5c27943..5861a43 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -188,6 +188,8 @@ static inline void check_wait(void)
case CPU_AU1500:
case CPU_AU1550:
case CPU_AU1200:
+ case CPU_AU1210:
+ case CPU_AU1250:
if (allow_au1k_wait)
cpu_wait = au1k_wait;
break;
@@ -733,6 +735,11 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
break;
case 4:
c->cputype = CPU_AU1200;
+ if (2 == (c->processor_id & 0xff))
+ c->cputype = CPU_AU1250;
+ break;
+ case 5:
+ c->cputype = CPU_AU1210;
break;
default:
panic("Unknown Au Core!");
@@ -858,6 +865,8 @@ static __init const char *cpu_to_name(struct cpuinfo_mips *c)
case CPU_AU1100: name = "Au1100"; break;
case CPU_AU1550: name = "Au1550"; break;
case CPU_AU1200: name = "Au1200"; break;
+ case CPU_AU1210: name = "Au1210"; break;
+ case CPU_AU1250: name = "Au1250"; break;
case CPU_4KEC: name = "MIPS 4KEc"; break;
case CPU_4KSC: name = "MIPS 4KSc"; break;
case CPU_VR41XX: name = "NEC Vr41xx"; break;
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index e76a76b..c6ada98 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -6,7 +6,7 @@
* Copyright (C) 1994 - 2000, 2001, 2003 Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
* Copyright (C) 2001 MIPS Technologies, Inc.
- * Copyright (C) 2002 Maciej W. Rozycki
+ * Copyright (C) 2002, 2007 Maciej W. Rozycki
*/
#include <linux/init.h>
@@ -471,7 +471,13 @@ NESTED(nmi_handler, PT_SIZE, sp)
jr k0
rfe
#else
+#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
LONG_ADDIU k0, 4 /* stall on $k0 */
+#else
+ .set at=v1
+ LONG_ADDIU k0, 4
+ .set noat
+#endif
MTC0 k0, CP0_EPC
/* I hope three instructions between MTC0 and ERET are enough... */
ori k1, _THREAD_MASK
diff --git a/arch/mips/kernel/kspd.c b/arch/mips/kernel/kspd.c
index d2c2e00..f6704ab 100644
--- a/arch/mips/kernel/kspd.c
+++ b/arch/mips/kernel/kspd.c
@@ -161,8 +161,7 @@ static unsigned int translate_open_flags(int flags)
int i;
unsigned int ret = 0;
- for (i = 0; i < (sizeof(open_flags_table) / sizeof(struct apsp_table));
- i++) {
+ for (i = 0; i < ARRAY_SIZE(open_flags_table); i++) {
if( (flags & open_flags_table[i].sp) ) {
ret |= open_flags_table[i].ap;
}
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 2b8ec11..65af3cc 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -174,36 +174,16 @@ struct rlimit32 {
int rlim_max;
};
-#ifdef __MIPSEB__
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
- int length_hi, int length_lo)
-#endif
-#ifdef __MIPSEL__
-asmlinkage long sys32_truncate64(const char __user * path, unsigned long __dummy,
- int length_lo, int length_hi)
-#endif
+asmlinkage long sys32_truncate64(const char __user * path,
+ unsigned long __dummy, int a2, int a3)
{
- loff_t length;
-
- length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
-
- return sys_truncate(path, length);
+ return sys_truncate(path, merge_64(a2, a3));
}
-#ifdef __MIPSEB__
asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
- int length_hi, int length_lo)
-#endif
-#ifdef __MIPSEL__
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long __dummy,
- int length_lo, int length_hi)
-#endif
+ int a2, int a3)
{
- loff_t length;
-
- length = ((unsigned long) length_hi << 32) | (unsigned int) length_lo;
-
- return sys_ftruncate(fd, length);
+ return sys_ftruncate(fd, merge_64(a2, a3));
}
static inline long
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index 3d6b1ec..640fb0c 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -17,7 +17,6 @@
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/mipsmtregs.h>
#include <asm/r4kcache.h>
#include <asm/cacheflush.h>
diff --git a/arch/mips/kernel/pcspeaker.c b/arch/mips/kernel/pcspeaker.c
deleted file mode 100644
index 475df69..0000000
--- a/arch/mips/kernel/pcspeaker.c
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (C) 2006 IBM Corporation
- *
- * Implements device information for i8253 timer chip
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation
- */
-
-#include <linux/platform_device.h>
-
-static __init int add_pcspkr(void)
-{
- struct platform_device *pd;
- int ret;
-
- pd = platform_device_alloc("pcspkr", -1);
- if (!pd)
- return -ENOMEM;
-
- ret = platform_device_add(pd);
- if (ret)
- platform_device_put(pd);
-
- return ret;
-}
-device_initcall(add_pcspkr);
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 6e6e947..36f0653 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -62,6 +62,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
);
seq_printf(m, "shadow register sets\t: %d\n",
cpu_data[n].srsets);
+ seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
cpu_has_vce ? "%u" : "not available");
@@ -89,7 +90,7 @@ static void c_stop(struct seq_file *m, void *v)
{
}
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index 1ba00c1..0233798 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -40,7 +40,6 @@
#include <asm/atomic.h>
#include <asm/cpu.h>
#include <asm/processor.h>
-#include <asm/mips_mt.h>
#include <asm/system.h>
#include <asm/vpe.h>
#include <asm/rtlx.h>
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index f8a535a..269c252 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -8,7 +8,7 @@
* Copyright (C) 1994, 95, 96, 97, 98, 99, 2000, 01, 02, 03 Ralf Baechle
* Copyright (C) 1996 Stoned Elipot
* Copyright (C) 1999 Silicon Graphics, Inc.
- * Copyright (C) 2000 2001, 2002 Maciej W. Rozycki
+ * Copyright (C) 2000, 2001, 2002, 2007 Maciej W. Rozycki
*/
#include <linux/init.h>
#include <linux/ioport.h>
@@ -24,10 +24,12 @@
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
+#include <asm/bugs.h>
#include <asm/cache.h>
#include <asm/cpu.h>
#include <asm/sections.h>
#include <asm/setup.h>
+#include <asm/smp-ops.h>
#include <asm/system.h>
struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly;
@@ -561,6 +563,7 @@ void __init setup_arch(char **cmdline_p)
}
#endif
cpu_report();
+ check_bugs_early();
#if defined(CONFIG_VT)
#if defined(CONFIG_VGA_CONSOLE)
@@ -573,9 +576,7 @@ void __init setup_arch(char **cmdline_p)
arch_mem_init(cmdline_p);
resource_init();
-#ifdef CONFIG_SMP
plat_smp_setup();
-#endif
}
static int __init fpu_disable(char *s)
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index 94e210c..89e6f6a 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -22,6 +22,7 @@
#include <linux/cpumask.h>
#include <linux/interrupt.h>
#include <linux/compiler.h>
+#include <linux/smp.h>
#include <asm/atomic.h>
#include <asm/cacheflush.h>
@@ -30,7 +31,6 @@
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/time.h>
#include <asm/mipsregs.h>
#include <asm/mipsmtregs.h>
@@ -215,68 +215,67 @@ static void __init smp_tc_init(unsigned int tc, unsigned int mvpconf0)
write_tc_c0_tchalt(TCHALT_H);
}
-/*
- * Common setup before any secondaries are started
- * Make sure all CPU's are in a sensible state before we boot any of the
- * secondarys
- */
-void __init plat_smp_setup(void)
+static void vsmp_send_ipi_single(int cpu, unsigned int action)
{
- unsigned int mvpconf0, ntc, tc, ncpu = 0;
-
-#ifdef CONFIG_MIPS_MT_FPAFF
- /* If we have an FPU, enroll ourselves in the FPU-full mask */
- if (cpu_has_fpu)
- cpu_set(0, mt_fpu_cpumask);
-#endif /* CONFIG_MIPS_MT_FPAFF */
- if (!cpu_has_mipsmt)
- return;
-
- /* disable MT so we can configure */
- dvpe();
- dmt();
+ int i;
+ unsigned long flags;
+ int vpflags;
- /* Put MVPE's into 'configuration state' */
- set_c0_mvpcontrol(MVPCONTROL_VPC);
+ local_irq_save(flags);
- mvpconf0 = read_c0_mvpconf0();
- ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT;
+ vpflags = dvpe(); /* cant access the other CPU's registers whilst MVPE enabled */
- /* we'll always have more TC's than VPE's, so loop setting everything
- to a sensible state */
- for (tc = 0; tc <= ntc; tc++) {
- settc(tc);
+ switch (action) {
+ case SMP_CALL_FUNCTION:
+ i = C_SW1;
+ break;
- smp_tc_init(tc, mvpconf0);
- ncpu = smp_vpe_init(tc, mvpconf0, ncpu);
+ case SMP_RESCHEDULE_YOURSELF:
+ default:
+ i = C_SW0;
+ break;
}
- /* Release config state */
- clear_c0_mvpcontrol(MVPCONTROL_VPC);
+ /* 1:1 mapping of vpe and tc... */
+ settc(cpu);
+ write_vpe_c0_cause(read_vpe_c0_cause() | i);
+ evpe(vpflags);
- /* We'll wait until starting the secondaries before starting MVPE */
+ local_irq_restore(flags);
+}
- printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu);
+static void vsmp_send_ipi_mask(cpumask_t mask, unsigned int action)
+{
+ unsigned int i;
+
+ for_each_cpu_mask(i, mask)
+ vsmp_send_ipi_single(i, action);
}
-void __init plat_prepare_cpus(unsigned int max_cpus)
+static void __cpuinit vsmp_init_secondary(void)
{
- mips_mt_set_cpuoptions();
+ /* Enable per-cpu interrupts */
- /* set up ipi interrupts */
- if (cpu_has_vint) {
- set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
- set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
- }
+ /* This is Malta specific: IPI,performance and timer inetrrupts */
+ write_c0_status((read_c0_status() & ~ST0_IM ) |
+ (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7));
+}
- cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
- cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
+static void __cpuinit vsmp_smp_finish(void)
+{
+ write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ));
- setup_irq(cpu_ipi_resched_irq, &irq_resched);
- setup_irq(cpu_ipi_call_irq, &irq_call);
+#ifdef CONFIG_MIPS_MT_FPAFF
+ /* If we have an FPU, enroll ourselves in the FPU-full mask */
+ if (cpu_has_fpu)
+ cpu_set(smp_processor_id(), mt_fpu_cpumask);
+#endif /* CONFIG_MIPS_MT_FPAFF */
- set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
- set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq);
+ local_irq_enable();
+}
+
+static void vsmp_cpus_done(void)
+{
}
/*
@@ -287,7 +286,7 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
* (unsigned long)idle->thread_info the gp
* assumes a 1:1 mapping of TC => VPE
*/
-void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
+static void __cpuinit vsmp_boot_secondary(int cpu, struct task_struct *idle)
{
struct thread_info *gp = task_thread_info(idle);
dvpe();
@@ -321,57 +320,81 @@ void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
evpe(EVPE_ENABLE);
}
-void __cpuinit prom_init_secondary(void)
-{
- /* Enable per-cpu interrupts */
-
- /* This is Malta specific: IPI,performance and timer inetrrupts */
- write_c0_status((read_c0_status() & ~ST0_IM ) |
- (STATUSF_IP0 | STATUSF_IP1 | STATUSF_IP6 | STATUSF_IP7));
-}
-
-void __cpuinit prom_smp_finish(void)
+/*
+ * Common setup before any secondaries are started
+ * Make sure all CPU's are in a sensible state before we boot any of the
+ * secondarys
+ */
+static void __init vsmp_smp_setup(void)
{
- write_c0_compare(read_c0_count() + (8* mips_hpt_frequency/HZ));
+ unsigned int mvpconf0, ntc, tc, ncpu = 0;
+ unsigned int nvpe;
#ifdef CONFIG_MIPS_MT_FPAFF
/* If we have an FPU, enroll ourselves in the FPU-full mask */
if (cpu_has_fpu)
- cpu_set(smp_processor_id(), mt_fpu_cpumask);
+ cpu_set(0, mt_fpu_cpumask);
#endif /* CONFIG_MIPS_MT_FPAFF */
+ if (!cpu_has_mipsmt)
+ return;
- local_irq_enable();
-}
+ /* disable MT so we can configure */
+ dvpe();
+ dmt();
-void prom_cpus_done(void)
-{
-}
+ /* Put MVPE's into 'configuration state' */
+ set_c0_mvpcontrol(MVPCONTROL_VPC);
-void core_send_ipi(int cpu, unsigned int action)
-{
- int i;
- unsigned long flags;
- int vpflags;
+ mvpconf0 = read_c0_mvpconf0();
+ ntc = (mvpconf0 & MVPCONF0_PTC) >> MVPCONF0_PTC_SHIFT;
- local_irq_save(flags);
+ nvpe = ((mvpconf0 & MVPCONF0_PVPE) >> MVPCONF0_PVPE_SHIFT) + 1;
+ smp_num_siblings = nvpe;
- vpflags = dvpe(); /* cant access the other CPU's registers whilst MVPE enabled */
+ /* we'll always have more TC's than VPE's, so loop setting everything
+ to a sensible state */
+ for (tc = 0; tc <= ntc; tc++) {
+ settc(tc);
- switch (action) {
- case SMP_CALL_FUNCTION:
- i = C_SW1;
- break;
+ smp_tc_init(tc, mvpconf0);
+ ncpu = smp_vpe_init(tc, mvpconf0, ncpu);
+ }
- case SMP_RESCHEDULE_YOURSELF:
- default:
- i = C_SW0;
- break;
+ /* Release config state */
+ clear_c0_mvpcontrol(MVPCONTROL_VPC);
+
+ /* We'll wait until starting the secondaries before starting MVPE */
+
+ printk(KERN_INFO "Detected %i available secondary CPU(s)\n", ncpu);
+}
+
+static void __init vsmp_prepare_cpus(unsigned int max_cpus)
+{
+ mips_mt_set_cpuoptions();
+
+ /* set up ipi interrupts */
+ if (cpu_has_vint) {
+ set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
+ set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
}
- /* 1:1 mapping of vpe and tc... */
- settc(cpu);
- write_vpe_c0_cause(read_vpe_c0_cause() | i);
- evpe(vpflags);
+ cpu_ipi_resched_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
+ cpu_ipi_call_irq = MIPS_CPU_IRQ_BASE + MIPS_CPU_IPI_CALL_IRQ;
- local_irq_restore(flags);
+ setup_irq(cpu_ipi_resched_irq, &irq_resched);
+ setup_irq(cpu_ipi_call_irq, &irq_call);
+
+ set_irq_handler(cpu_ipi_resched_irq, handle_percpu_irq);
+ set_irq_handler(cpu_ipi_call_irq, handle_percpu_irq);
}
+
+struct plat_smp_ops vsmp_smp_ops = {
+ .send_ipi_single = vsmp_send_ipi_single,
+ .send_ipi_mask = vsmp_send_ipi_mask,
+ .init_secondary = vsmp_init_secondary,
+ .smp_finish = vsmp_smp_finish,
+ .cpus_done = vsmp_cpus_done,
+ .boot_secondary = vsmp_boot_secondary,
+ .smp_setup = vsmp_smp_setup,
+ .prepare_cpus = vsmp_prepare_cpus,
+};
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 63989e9..1e5dfc2 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -37,7 +37,6 @@
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/time.h>
#ifdef CONFIG_MIPS_MT_SMTC
@@ -56,6 +55,44 @@ EXPORT_SYMBOL(cpu_online_map);
extern void __init calibrate_delay(void);
extern void cpu_idle(void);
+/* Number of TCs (or siblings in Intel speak) per CPU core */
+int smp_num_siblings = 1;
+EXPORT_SYMBOL(smp_num_siblings);
+
+/* representing the TCs (or siblings in Intel speak) of each logical CPU */
+cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly;
+EXPORT_SYMBOL(cpu_sibling_map);
+
+/* representing cpus for which sibling maps can be computed */
+static cpumask_t cpu_sibling_setup_map;
+
+static inline void set_cpu_sibling_map(int cpu)
+{
+ int i;
+
+ cpu_set(cpu, cpu_sibling_setup_map);
+
+ if (smp_num_siblings > 1) {
+ for_each_cpu_mask(i, cpu_sibling_setup_map) {
+ if (cpu_data[cpu].core == cpu_data[i].core) {
+ cpu_set(i, cpu_sibling_map[cpu]);
+ cpu_set(cpu, cpu_sibling_map[i]);
+ }
+ }
+ } else
+ cpu_set(cpu, cpu_sibling_map[cpu]);
+}
+
+struct plat_smp_ops *mp_ops;
+
+__cpuinit void register_smp_ops(struct plat_smp_ops *ops)
+{
+ if (ops)
+ printk(KERN_WARNING "Overriding previous set SMP ops\n");
+
+ mp_ops = ops;
+}
+
/*
* First C code run on the secondary CPUs after being started up by
* the master.
@@ -72,7 +109,7 @@ asmlinkage __cpuinit void start_secondary(void)
cpu_report();
per_cpu_trap_init();
mips_clockevent_init();
- prom_init_secondary();
+ mp_ops->init_secondary();
/*
* XXX parity protection should be folded in here when it's converted
@@ -84,7 +121,8 @@ asmlinkage __cpuinit void start_secondary(void)
cpu = smp_processor_id();
cpu_data[cpu].udelay_val = loops_per_jiffy;
- prom_smp_finish();
+ mp_ops->smp_finish();
+ set_cpu_sibling_map(cpu);
cpu_set(cpu, cpu_callin_map);
@@ -155,7 +193,7 @@ int smp_call_function_mask(cpumask_t mask, void (*func) (void *info),
smp_mb();
/* Send a message to all other CPUs and wait for them to respond */
- core_send_ipi_mask(mask, SMP_CALL_FUNCTION);
+ mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
/* Wait for response */
/* FIXME: lock-up detection, backtrace on lock-up */
@@ -249,7 +287,7 @@ void smp_send_stop(void)
void __init smp_cpus_done(unsigned int max_cpus)
{
- prom_cpus_done();
+ mp_ops->cpus_done();
}
/* called from main before smp_init() */
@@ -257,7 +295,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
{
init_new_context(current, &init_mm);
current_thread_info()->cpu = 0;
- plat_prepare_cpus(max_cpus);
+ mp_ops->prepare_cpus(max_cpus);
+ set_cpu_sibling_map(0);
#ifndef CONFIG_HOTPLUG_CPU
cpu_present_map = cpu_possible_map;
#endif
@@ -295,7 +334,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
if (IS_ERR(idle))
panic(KERN_ERR "Fork failed for CPU %d", cpu);
- prom_boot_secondary(cpu, idle);
+ mp_ops->boot_secondary(cpu, idle);
/*
* Trust is futile. We should really have timeouts ...
diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
index 6f37099..fe25655 100644
--- a/arch/mips/kernel/smtc-proc.c
+++ b/arch/mips/kernel/smtc-proc.c
@@ -14,7 +14,6 @@
#include <asm/system.h>
#include <asm/hardirq.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/mipsregs.h>
#include <asm/cacheflush.h>
#include <linux/proc_fs.h>
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c
index 9c92d42..85f700e 100644
--- a/arch/mips/kernel/smtc.c
+++ b/arch/mips/kernel/smtc.c
@@ -16,7 +16,6 @@
#include <asm/hazards.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
-#include <asm/smp.h>
#include <asm/mipsregs.h>
#include <asm/cacheflush.h>
#include <asm/time.h>
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 2995be1..9f85d4c 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -50,8 +50,6 @@ int update_persistent_clock(struct timespec now)
return rtc_mips_set_mmss(now.tv_sec);
}
-int (*mips_timer_state)(void);
-
int null_perf_irq(void)
{
return 0;
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index c06eb81..eed2dc4 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -53,7 +53,6 @@
#include <asm/system.h>
#include <asm/vpe.h>
#include <asm/kspd.h>
-#include <asm/mips_mt.h>
typedef void *vpe_handle;
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