summaryrefslogtreecommitdiff
path: root/drivers/irqchip
diff options
context:
space:
mode:
authorMarc Zyngier <marc.zyngier@arm.com>2018-05-27 18:15:22 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2018-07-16 16:22:19 +0300
commitfe8e93504ce870cb60b5dca97d13d861a53d7353 (patch)
tree4c9d32acf607781f2c731badf5058a1a8f1ee91c /drivers/irqchip
parent880cb3cddd164128522146d1c087fbd1811ed0cc (diff)
downloadlinux-fe8e93504ce870cb60b5dca97d13d861a53d7353.tar.xz
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.c3
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");