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| author | Ingo Molnar <mingo@kernel.org> | 2018-03-20 10:08:02 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-20 10:08:02 +0300 |
| commit | 10c18c44a6494167e7a7ca3a3a61a67972017bdf (patch) | |
| tree | 20c3afe744b0d88783161169ec88e45a53662fe7 /drivers/irqchip/irq-gic-v3-its.c | |
| parent | 9e49e2447c6385e45c6fddd70d6c0e917e21b669 (diff) | |
| parent | 1b5f3ba415fe4cf8b8b39c8d104ed44cde330658 (diff) | |
| download | linux-10c18c44a6494167e7a7ca3a3a61a67972017bdf.tar.xz | |
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/irqchip/irq-gic-v3-its.c')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 1d3056f53747..2cbb19cddbf8 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1412,7 +1412,7 @@ static struct irq_chip its_irq_chip = { * This gives us (((1UL << id_bits) - 8192) >> 5) possible allocations. */ #define IRQS_PER_CHUNK_SHIFT 5 -#define IRQS_PER_CHUNK (1 << IRQS_PER_CHUNK_SHIFT) +#define IRQS_PER_CHUNK (1UL << IRQS_PER_CHUNK_SHIFT) #define ITS_MAX_LPI_NRBITS 16 /* 64K LPIs */ static unsigned long *lpi_bitmap; @@ -2119,11 +2119,10 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, dev = kzalloc(sizeof(*dev), GFP_KERNEL); /* - * At least one bit of EventID is being used, hence a minimum - * of two entries. No, the architecture doesn't let you - * express an ITT with a single entry. + * We allocate at least one chunk worth of LPIs bet device, + * and thus that many ITEs. The device may require less though. */ - nr_ites = max(2UL, roundup_pow_of_two(nvecs)); + nr_ites = max(IRQS_PER_CHUNK, roundup_pow_of_two(nvecs)); sz = nr_ites * its->ite_size; sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1; itt = kzalloc(sz, GFP_KERNEL); @@ -2495,7 +2494,7 @@ static int its_vpe_set_affinity(struct irq_data *d, static void its_vpe_schedule(struct its_vpe *vpe) { - void * __iomem vlpi_base = gic_data_rdist_vlpi_base(); + void __iomem *vlpi_base = gic_data_rdist_vlpi_base(); u64 val; /* Schedule the VPE */ @@ -2527,7 +2526,7 @@ static void its_vpe_schedule(struct its_vpe *vpe) static void its_vpe_deschedule(struct its_vpe *vpe) { - void * __iomem vlpi_base = gic_data_rdist_vlpi_base(); + void __iomem *vlpi_base = gic_data_rdist_vlpi_base(); u32 count = 1000000; /* 1s! */ bool clean; u64 val; |