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Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

Browse Source 
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Export except_vec_vi_{mori,lui,ori} as text symbols.
  [MIPS] mips-boards: More liberal check for mips-board console
  [MIPS] Misc fixes for plat_irq_dispatch functions
  [MIPS] Qemu: Fix Symmetric Uniprocessor support.
  [MIPS] VI: TRACE_IRQS_OFF clobbers $v0, so save & restore around call.
This commit is contained in:
Linus Torvalds 2007-03-19 20:13:56 -07:00
commit 62b6e9ff08
17 changed files with 49 additions and 24 deletions
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15
arch/mips/Kconfig
View File

@ -542,6 +542,8 @@ config QEMU
select SYS_SUPPORTS_LITTLE_ENDIAN
select ARCH_SPARSEMEM_ENABLE
select GENERIC_HARDIRQS_NO__DO_IRQ
select NR_CPUS_DEFAULT_1
select SYS_SUPPORTS_SMP
help
Qemu is a software emulator which among other architectures also
can simulate a MIPS32 4Kc system. This patch adds support for the
@ -1805,6 +1807,9 @@ config SMP
config SYS_SUPPORTS_SMP
bool
config NR_CPUS_DEFAULT_1
bool
config NR_CPUS_DEFAULT_2
bool
@ -1825,8 +1830,9 @@ config NR_CPUS_DEFAULT_64
config NR_CPUS
int "Maximum number of CPUs (2-64)"
range 2 64
range 1 64 if NR_CPUS_DEFAULT_1
depends on SMP
default "1" if NR_CPUS_DEFAULT_1
default "2" if NR_CPUS_DEFAULT_2
default "4" if NR_CPUS_DEFAULT_4
default "8" if NR_CPUS_DEFAULT_8
@ -1837,10 +1843,13 @@ config NR_CPUS
This allows you to specify the maximum number of CPUs which this
kernel will support. The maximum supported value is 32 for 32-bit
kernel and 64 for 64-bit kernels; the minimum value which makes
sense is 2.
sense is 1 for Qemu (useful only for kernel debugging purposes)
and 2 for all others.
This is purely to save memory - each supported CPU adds
approximately eight kilobytes to the kernel image.
approximately eight kilobytes to the kernel image. For best
performance should round up your number of processors to the next
power of two.
#
# Timer Interrupt Frequency Configuration

2
arch/mips/ddb5xxx/ddb5477/irq.c
View File

@ -194,7 +194,7 @@ static void vrc5477_irq_dispatch(void)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_cause() & read_c0_status();
unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
if (pending & STATUSF_IP7)
do_IRQ(CPU_IRQ_BASE + 7);

2
arch/mips/emma2rh/markeins/irq.c
View File

@ -115,7 +115,7 @@ void __init arch_init_irq(void)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & STATUSF_IP7)
do_IRQ(CPU_IRQ_BASE + 7);

2
arch/mips/gt64120/ev64120/irq.c
View File

@ -48,7 +48,7 @@
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & STATUSF_IP4) /* int2 hardware line (timer) */
do_IRQ(4);

2
arch/mips/gt64120/wrppmc/irq.c
View File

@ -32,7 +32,7 @@
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & STATUSF_IP7)
do_IRQ(WRPPMC_MIPS_TIMER_IRQ); /* CPU Compare/Count internal timer */

2
arch/mips/jazz/irq.c
View File

@ -122,7 +122,7 @@ static void ll_local_dev(void)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
unsigned int pending = read_c0_cause() & read_c0_status();
if (pending & IE_IRQ5)
write_c0_compare(0);

16
arch/mips/kernel/genex.S
View File

@ -181,13 +181,13 @@ NESTED(except_vec_vi, 0, sp)
* during service by SMTC kernel, we also want to
* pass the IM value to be cleared.
*/
EXPORT(except_vec_vi_mori)
FEXPORT(except_vec_vi_mori)
ori a0, $0, 0
#endif /* CONFIG_MIPS_MT_SMTC */
EXPORT(except_vec_vi_lui)
FEXPORT(except_vec_vi_lui)
lui v0, 0 /* Patched */
j except_vec_vi_handler
EXPORT(except_vec_vi_ori)
FEXPORT(except_vec_vi_ori)
ori v0, 0 /* Patched */
.set pop
END(except_vec_vi)
@ -220,7 +220,17 @@ NESTED(except_vec_vi_handler, 0, sp)
_ehb
#endif /* CONFIG_MIPS_MT_SMTC */
CLI
#ifdef CONFIG_TRACE_IRQFLAGS
move s0, v0
#ifdef CONFIG_MIPS_MT_SMTC
move s1, a0
#endif
TRACE_IRQS_OFF
#ifdef CONFIG_MIPS_MT_SMTC
move a0, s1
#endif
move v0, s0
#endif
LONG_L s0, TI_REGS($28)
LONG_S sp, TI_REGS($28)

2
arch/mips/mips-boards/generic/init.c
View File

@ -145,7 +145,7 @@ static void __init console_config(void)
char parity = '\0', bits = '\0', flow = '\0';
char *s;
if ((strstr(prom_getcmdline(), "console=ttyS")) == NULL) {
if ((strstr(prom_getcmdline(), "console=")) == NULL) {
s = prom_getenv("modetty0");
if (s) {
while (*s >= '0' && *s <= '9')

2
arch/mips/momentum/ocelot_c/irq.c
View File

@ -64,7 +64,7 @@ extern void ll_cpci_irq(void);
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_cause() & read_c0_status();
unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
if (pending & STATUSF_IP0)
do_IRQ(0);

7
arch/mips/philips/pnx8550/common/int.c
View File

@ -83,16 +83,15 @@ static void timer_irqdispatch(int irq)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & STATUSF_IP2)
hw0_irqdispatch(2);
else if (pending & STATUSF_IP7) {
if (read_c0_config7() & 0x01c0)
timer_irqdispatch(7);
}
spurious_interrupt();
} else
spurious_interrupt();
}
static inline void modify_cp0_intmask(unsigned clr_mask, unsigned set_mask)

7
arch/mips/qemu/q-smp.c
View File

@ -46,3 +46,10 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
void prom_boot_secondary(int cpu, struct task_struct *idle)
{
}
void __init plat_smp_setup(void)
{
}
void __init plat_prepare_cpus(unsigned int max_cpus)
{
}

2
arch/mips/sgi-ip22/ip22-int.c
View File

@ -237,7 +237,7 @@ extern void indy_8254timer_irq(void);
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause();
/*
* First we check for r4k counter/timer IRQ.

2
arch/mips/sgi-ip32/ip32-irq.c
View File

@ -454,7 +454,7 @@ static void ip32_irq5(void)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause();
if (likely(pending & IE_IRQ0))
ip32_irq0();

2
arch/mips/sibyte/sb1250/irq.c
View File

@ -421,7 +421,7 @@ asmlinkage void plat_irq_dispatch(void)
* blasting the high 32 bits.
*/
pending = read_c0_cause() & read_c0_status();
pending = read_c0_cause() & read_c0_status() & ST0_IM;
#ifdef CONFIG_SIBYTE_SB1250_PROF
if (pending & CAUSEF_IP7) /* Cpu performance counter interrupt */

2
arch/mips/sni/pcimt.c
View File

@ -333,7 +333,7 @@ static void pcimt_hwint3(void)
static void sni_pcimt_hwint(void)
{
u32 pending = (read_c0_cause() & read_c0_status());
u32 pending = read_c0_cause() & read_c0_status();
if (pending & C_IRQ5)
do_IRQ (MIPS_CPU_IRQ_BASE + 7);

4
arch/mips/sni/pcit.c
View File

@ -271,7 +271,7 @@ static void pcit_hwint0(void)
static void sni_pcit_hwint(void)
{
u32 pending = (read_c0_cause() & read_c0_status());
u32 pending = read_c0_cause() & read_c0_status();
if (pending & C_IRQ1)
pcit_hwint1();
@ -285,7 +285,7 @@ static void sni_pcit_hwint(void)
static void sni_pcit_hwint_cplus(void)
{
u32 pending = (read_c0_cause() & read_c0_status());
u32 pending = read_c0_cause() & read_c0_status();
if (pending & C_IRQ0)
pcit_hwint0();

2
arch/mips/tx4927/common/tx4927_irq.c
View File

@ -416,7 +416,7 @@ static int tx4927_irq_nested(void)
asmlinkage void plat_irq_dispatch(void)
{
unsigned int pending = read_c0_status() & read_c0_cause();
unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
if (pending & STATUSF_IP7) /* cpu timer */
do_IRQ(TX4927_IRQ_CPU_TIMER);