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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-05-27 17:15:22 +0200 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2018-07-16 15:22:19 +0200 |
| commit | fe8e93504ce870cb60b5dca97d13d861a53d7353 (patch) | |
| tree | 4c9d32acf607781f2c731badf5058a1a8f1ee91c /drivers/irqchip | |
| parent | irqchip/gic-v3-its: Refactor LPI allocator (diff) | |
| download | linux-fe8e93504ce870cb60b5dca97d13d861a53d7353.tar.xz linux-fe8e93504ce870cb60b5dca97d13d861a53d7353.zip | |
irqchip/gic-v3-its: Use full range of LPIs
As we used to represent the LPI range using a bitmap, we were reducing
the number of LPIs to at most 64k in order to preserve memory.
With our new allocator, there is no such need, as dealing with 2^16
or 2^32 LPIs takes the same amount of memory.
So let's use the number of IntID bits reported by the GIC instead of
an arbitrary limit.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 9084a7e5a4b2..20244006cd82 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1445,7 +1445,6 @@ static struct irq_chip its_irq_chip = { */ #define IRQS_PER_CHUNK_SHIFT 5 #define IRQS_PER_CHUNK (1UL << IRQS_PER_CHUNK_SHIFT) -#define ITS_MAX_LPI_NRBITS 16 /* 64K LPIs */ static DEFINE_MUTEX(lpi_range_lock); static LIST_HEAD(lpi_range_list); @@ -1626,7 +1625,7 @@ static int __init its_alloc_lpi_tables(void) { phys_addr_t paddr; - lpi_id_bits = min_t(u32, gic_rdists->id_bits, ITS_MAX_LPI_NRBITS); + lpi_id_bits = gic_rdists->id_bits; gic_rdists->prop_page = its_allocate_prop_table(GFP_NOWAIT); if (!gic_rdists->prop_page) { pr_err("Failed to allocate PROPBASE\n"); |