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| author | Ralf Baechle <ralf@linux-mips.org> | 2007-03-27 15:19:58 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-03-29 23:46:36 +0100 |
| commit | 20bb25d10fe5569df8f3f186a36e5548582854d9 (patch) | |
| tree | de57dcfa1b679d492f1281a3b7e9d69e12fc6c0f /arch | |
| parent | ae036b790891565c5b4b64e616ed497138d1f8d6 (diff) | |
| download | linux-20bb25d10fe5569df8f3f186a36e5548582854d9.tar.gz linux-20bb25d10fe5569df8f3f186a36e5548582854d9.tar.xz | |
[MIPS] SMTC: Fix false trigger of debug code on single VPE.
Make smtc_setup_irq() update the list of interrupts which need to be
watched by the debug code itself. Also there is no need to initialize the
IPI swint when running with a single VPE, so don't initialize it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/kernel/smtc.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/arch/mips/kernel/smtc.c b/arch/mips/kernel/smtc.c index cba17a8f53d0..e50fe20571f0 100644 --- a/arch/mips/kernel/smtc.c +++ b/arch/mips/kernel/smtc.c @@ -77,7 +77,7 @@ static struct smtc_ipi_q freeIPIq; void ipi_decode(struct smtc_ipi *); static void post_direct_ipi(int cpu, struct smtc_ipi *pipi); -static void setup_cross_vpe_interrupts(void); +static void setup_cross_vpe_interrupts(unsigned int nvpe); void init_smtc_stats(void); /* Global SMTC Status */ @@ -170,7 +170,10 @@ __setup("tintq=", tintq); int imstuckcount[2][8]; /* vpemask represents IM/IE bits of per-VPE Status registers, low-to-high */ -int vpemask[2][8] = {{0,1,1,0,0,0,0,1},{0,1,0,0,0,0,0,1}}; +int vpemask[2][8] = { + {0, 0, 1, 0, 0, 0, 0, 1}, + {0, 0, 0, 0, 0, 0, 0, 1} +}; int tcnoprog[NR_CPUS]; static atomic_t idle_hook_initialized = {0}; static int clock_hang_reported[NR_CPUS]; @@ -503,8 +506,7 @@ void mipsmt_prepare_cpus(void) /* If we have multiple VPEs running, set up the cross-VPE interrupt */ - if (nvpe > 1) - setup_cross_vpe_interrupts(); + setup_cross_vpe_interrupts(nvpe); /* Set up queue of free IPI "messages". */ nipi = NR_CPUS * IPIBUF_PER_CPU; @@ -609,7 +611,12 @@ void smtc_cpus_done(void) int setup_irq_smtc(unsigned int irq, struct irqaction * new, unsigned long hwmask) { + unsigned int vpe = current_cpu_data.vpe_id; + irq_hwmask[irq] = hwmask; +#ifdef CONFIG_SMTC_IDLE_HOOK_DEBUG + vpemask[vpe][irq - MIPSCPU_INT_BASE] = 1; +#endif return setup_irq(irq, new); } @@ -970,8 +977,11 @@ static void ipi_irq_dispatch(void) static struct irqaction irq_ipi; -static void setup_cross_vpe_interrupts(void) +static void setup_cross_vpe_interrupts(unsigned int nvpe) { + if (nvpe < 1) + return; + if (!cpu_has_vint) panic("SMTC Kernel requires Vectored Interupt support"); |