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| author | Jack Steiner <steiner@sgi.com> | 2009-12-16 01:48:11 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 16:20:16 +0100 |
| commit | 4107e1d38a23028c2a3bc23dd948265dbe6becba (patch) | |
| tree | 3c64087639dc327e42447f015f3c4b01c4a1de39 /drivers/misc/sgi-gru/grufault.c | |
| parent | gru: fix prefetch and speculation bugs (diff) | |
| download | linux-4107e1d38a23028c2a3bc23dd948265dbe6becba.tar.xz linux-4107e1d38a23028c2a3bc23dd948265dbe6becba.zip | |
gru: update irq infrastructure
Update the GRU irq allocate/free functions to use the latest upstream
infrastructure.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-gru/grufault.c')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 49 |
1 files changed, 32 insertions, 17 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index d3cacd696b38..a78aa798d50b 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -134,19 +134,6 @@ static void gru_cb_set_istatus_active(struct gru_instruction_bits *cbk) } /* - * Convert a interrupt IRQ to a pointer to the GRU GTS that caused the - * interrupt. Interrupts are always sent to a cpu on the blade that contains the - * GRU (except for headless blades which are not currently supported). A blade - * has N grus; a block of N consecutive IRQs is assigned to the GRUs. The IRQ - * number uniquely identifies the GRU chiplet on the local blade that caused the - * interrupt. Always called in interrupt context. - */ -static inline struct gru_state *irq_to_gru(int irq) -{ - return &gru_base[uv_numa_blade_id()]->bs_grus[irq - IRQ_GRU]; -} - -/* * Read & clear a TFM * * The GRU has an array of fault maps. A map is private to a cpu @@ -449,7 +436,7 @@ failactive: * Note that this is the interrupt handler that is registered with linux * interrupt handlers. */ -irqreturn_t gru_intr(int irq, void *dev_id) +static irqreturn_t gru_intr(int chiplet, int blade) { struct gru_state *gru; struct gru_tlb_fault_map imap, dmap; @@ -459,13 +446,18 @@ irqreturn_t gru_intr(int irq, void *dev_id) STAT(intr); - gru = irq_to_gru(irq); + gru = &gru_base[blade]->bs_grus[chiplet]; if (!gru) { - dev_err(grudev, "GRU: invalid interrupt: cpu %d, irq %d\n", - raw_smp_processor_id(), irq); + dev_err(grudev, "GRU: invalid interrupt: cpu %d, chiplet %d\n", + raw_smp_processor_id(), chiplet); return IRQ_NONE; } get_clear_fault_map(gru, &imap, &dmap); + gru_dbg(grudev, + "cpu %d, chiplet %d, gid %d, imap %016lx %016lx, dmap %016lx %016lx\n", + smp_processor_id(), chiplet, gru->gs_gid, + imap.fault_bits[0], imap.fault_bits[1], + dmap.fault_bits[0], dmap.fault_bits[1]); for_each_cbr_in_tfm(cbrnum, dmap.fault_bits) { complete(gru->gs_blade->bs_async_wq); @@ -503,6 +495,29 @@ irqreturn_t gru_intr(int irq, void *dev_id) return IRQ_HANDLED; } +irqreturn_t gru0_intr(int irq, void *dev_id) +{ + return gru_intr(0, uv_numa_blade_id()); +} + +irqreturn_t gru1_intr(int irq, void *dev_id) +{ + return gru_intr(1, uv_numa_blade_id()); +} + +irqreturn_t gru_intr_mblade(int irq, void *dev_id) +{ + int blade; + + for_each_possible_blade(blade) { + if (uv_blade_nr_possible_cpus(blade)) + continue; + gru_intr(0, blade); + gru_intr(1, blade); + } + return IRQ_HANDLED; +} + static int gru_user_dropin(struct gru_thread_state *gts, struct gru_tlb_fault_handle *tfh, |