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-rw-r--r--arch/mips/kernel/Makefile1
-rw-r--r--arch/mips/kernel/cpu-bugs64.c4
-rw-r--r--arch/mips/kernel/cpu-probe.c10
-rw-r--r--arch/mips/kernel/csrc-r4k.c7
-rw-r--r--arch/mips/kernel/gdb-stub.c3
-rw-r--r--arch/mips/kernel/head.S2
-rw-r--r--arch/mips/kernel/i8253.c1
-rw-r--r--arch/mips/kernel/time.c2
-rw-r--r--arch/mips/kernel/traps.c38
-rw-r--r--arch/mips/kernel/vpe.c21
10 files changed, 62 insertions, 27 deletions
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index ffa08362de1..9e78e1a4ca1 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -76,7 +76,6 @@ obj-$(CONFIG_PROC_FS) += proc.o
obj-$(CONFIG_64BIT) += cpu-bugs64.o
obj-$(CONFIG_I8253) += i8253.o
-obj-$(CONFIG_PCSPEAKER) += pcspeaker.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index 417bb3e336a..a1b48af0992 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -167,7 +167,7 @@ static inline void check_mult_sh(void)
panic(bug64hit, !R4000_WAR ? r4kwar : nowar);
}
-static volatile int daddi_ov __initdata = 0;
+static volatile int daddi_ov __cpuinitdata = 0;
asmlinkage void __init do_daddi_ov(struct pt_regs *regs)
{
@@ -239,7 +239,7 @@ static inline void check_daddi(void)
panic(bug64hit, !DADDI_WAR ? daddiwar : nowar);
}
-int daddiu_bug __initdata = -1;
+int daddiu_bug __cpuinitdata = -1;
static inline void check_daddiu(void)
{
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 5861a432a52..89c3304cb93 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -550,7 +550,7 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
}
}
-static char unknown_isa[] __initdata = KERN_ERR \
+static char unknown_isa[] __cpuinitdata = KERN_ERR \
"Unsupported ISA type, c0.config0: %d.";
static inline unsigned int decode_config0(struct cpuinfo_mips *c)
@@ -656,7 +656,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
return config3 & MIPS_CONF_M;
}
-static void __init decode_configs(struct cpuinfo_mips *c)
+static void __cpuinit decode_configs(struct cpuinfo_mips *c)
{
/* MIPS32 or MIPS64 compliant CPU. */
c->options = MIPS_CPU_4KEX | MIPS_CPU_4K_CACHE | MIPS_CPU_COUNTER |
@@ -814,7 +814,7 @@ const char *__cpu_name[NR_CPUS];
/*
* Name a CPU
*/
-static __init const char *cpu_to_name(struct cpuinfo_mips *c)
+static __cpuinit const char *cpu_to_name(struct cpuinfo_mips *c)
{
const char *name = NULL;
@@ -896,7 +896,7 @@ static __init const char *cpu_to_name(struct cpuinfo_mips *c)
return name;
}
-__init void cpu_probe(void)
+__cpuinit void cpu_probe(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
unsigned int cpu = smp_processor_id();
@@ -959,7 +959,7 @@ __init void cpu_probe(void)
c->srsets = 1;
}
-__init void cpu_report(void)
+__cpuinit void cpu_report(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index 0e2b5cd81f6..86e026f067b 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -22,12 +22,17 @@ static struct clocksource clocksource_mips = {
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
-void __init init_mips_clocksource(void)
+int __init init_mips_clocksource(void)
{
+ if (!cpu_has_counter || !mips_hpt_frequency)
+ return -ENXIO;
+
/* Calclate a somewhat reasonable rating value */
clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
clocksource_set_clock(&clocksource_mips, mips_hpt_frequency);
clocksource_register(&clocksource_mips);
+
+ return 0;
}
diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c
index 3191afa29ad..25f4eab8ea9 100644
--- a/arch/mips/kernel/gdb-stub.c
+++ b/arch/mips/kernel/gdb-stub.c
@@ -139,7 +139,6 @@
#include <asm/system.h>
#include <asm/gdb-stub.h>
#include <asm/inst.h>
-#include <asm/smp.h>
/*
* external low-level support routines
@@ -656,6 +655,7 @@ void set_async_breakpoint(unsigned long *epc)
*epc = (unsigned long)async_breakpoint;
}
+#ifdef CONFIG_SMP
static void kgdb_wait(void *arg)
{
unsigned flags;
@@ -668,6 +668,7 @@ static void kgdb_wait(void *arg)
local_irq_restore(flags);
}
+#endif
/*
* GDB stub needs to call kgdb_wait on all processor with interrupts
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index a24fb790090..361364501d3 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -195,7 +195,7 @@ NESTED(kernel_entry, 16, sp) # kernel entry point
j start_kernel
END(kernel_entry)
- __INIT
+ __CPUINIT
#ifdef CONFIG_SMP
/*
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index fc4aa07b6d3..38fa1a194bf 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -15,6 +15,7 @@
#include <asm/time.h>
DEFINE_SPINLOCK(i8253_lock);
+EXPORT_SYMBOL(i8253_lock);
/*
* Initialize the PIT timer.
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 9f85d4cecc5..b45a7093ca2 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -157,6 +157,6 @@ void __init time_init(void)
{
plat_time_init();
- if (mips_clockevent_init() || !cpu_has_mfc0_count_bug())
+ if (!mips_clockevent_init() || !cpu_has_mfc0_count_bug())
init_mips_clocksource();
}
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index fcae6675297..984c0d0a7b4 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -534,8 +534,7 @@ static int simulate_llsc(struct pt_regs *regs, unsigned int opcode)
/*
* Simulate trapping 'rdhwr' instructions to provide user accessible
- * registers not implemented in hardware. The only current use of this
- * is the thread area pointer.
+ * registers not implemented in hardware.
*/
static int simulate_rdhwr(struct pt_regs *regs, unsigned int opcode)
{
@@ -545,11 +544,31 @@ static int simulate_rdhwr(struct pt_regs *regs, unsigned int opcode)
int rd = (opcode & RD) >> 11;
int rt = (opcode & RT) >> 16;
switch (rd) {
- case 29:
- regs->regs[rt] = ti->tp_value;
- return 0;
+ case 0: /* CPU number */
+ regs->regs[rt] = smp_processor_id();
+ return 0;
+ case 1: /* SYNCI length */
+ regs->regs[rt] = min(current_cpu_data.dcache.linesz,
+ current_cpu_data.icache.linesz);
+ return 0;
+ case 2: /* Read count register */
+ regs->regs[rt] = read_c0_count();
+ return 0;
+ case 3: /* Count register resolution */
+ switch (current_cpu_data.cputype) {
+ case CPU_20KC:
+ case CPU_25KF:
+ regs->regs[rt] = 1;
+ break;
default:
- return -1;
+ regs->regs[rt] = 2;
+ }
+ return 0;
+ case 29:
+ regs->regs[rt] = ti->tp_value;
+ return 0;
+ default:
+ return -1;
}
}
@@ -1287,7 +1306,7 @@ int cp0_compare_irq;
int cp0_perfcount_irq;
EXPORT_SYMBOL_GPL(cp0_perfcount_irq);
-void __init per_cpu_trap_init(void)
+void __cpuinit per_cpu_trap_init(void)
{
unsigned int cpu = smp_processor_id();
unsigned int status_set = ST0_CU0;
@@ -1404,11 +1423,12 @@ void __init set_handler(unsigned long offset, void *addr, unsigned long size)
flush_icache_range(ebase + offset, ebase + offset + size);
}
-static char panic_null_cerr[] __initdata =
+static char panic_null_cerr[] __cpuinitdata =
"Trying to set NULL cache error exception handler";
/* Install uncached CPU exception handler */
-void __init set_uncached_handler(unsigned long offset, void *addr, unsigned long size)
+void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
+ unsigned long size)
{
#ifdef CONFIG_32BIT
unsigned long uncached_ebase = KSEG1ADDR(ebase);
diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c
index eed2dc4273e..39804c584ed 100644
--- a/arch/mips/kernel/vpe.c
+++ b/arch/mips/kernel/vpe.c
@@ -262,13 +262,21 @@ void dump_mtregs(void)
/* Find some VPE program space */
static void *alloc_progmem(unsigned long len)
{
+ void *addr;
+
#ifdef CONFIG_MIPS_VPE_LOADER_TOM
- /* this means you must tell linux to use less memory than you physically have */
- return pfn_to_kaddr(max_pfn);
+ /*
+ * This means you must tell Linux to use less memory than you
+ * physically have, for example by passing a mem= boot argument.
+ */
+ addr = pfn_to_kaddr(max_pfn);
+ memset(addr, 0, len);
#else
- // simple grab some mem for now
- return kmalloc(len, GFP_KERNEL);
+ /* simple grab some mem for now */
+ addr = kzalloc(len, GFP_KERNEL);
#endif
+
+ return addr;
}
static void release_progmem(void *ptr)
@@ -884,9 +892,10 @@ static int vpe_elfload(struct vpe * v)
}
v->load_addr = alloc_progmem(mod.core_size);
- memset(v->load_addr, 0, mod.core_size);
+ if (!v->load_addr)
+ return -ENOMEM;
- printk("VPE loader: loading to %p\n", v->load_addr);
+ pr_info("VPE loader: loading to %p\n", v->load_addr);
if (relocate) {
for (i = 0; i < hdr->e_shnum; i++) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-03-29 15:54:12 +0000