lkml.org 
[lkml]   [2015]   [May]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[GIT pull] irq updates for 4.1
Linus,

please pull the latest irq-urgent-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-urgent-for-linus

Hopefully the last one for 4.1:

- A fix for a GIC-V3 irqchip regression which prevents some systems
from booting.

Thanks,

tglx

------------------>
Minghuan Lian (1):
irqchip/gicv3-its: ITS table size should not be smaller than PSZ


drivers/irqchip/irq-gic-v3-its.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 9687f8afebff..1b7e155869f6 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -828,7 +828,14 @@ static int its_alloc_tables(struct its_node *its)
u64 typer = readq_relaxed(its->base + GITS_TYPER);
u32 ids = GITS_TYPER_DEVBITS(typer);

- order = get_order((1UL << ids) * entry_size);
+ /*
+ * 'order' was initialized earlier to the default page
+ * granule of the the ITS. We can't have an allocation
+ * smaller than that. If the requested allocation
+ * is smaller, round up to the default page granule.
+ */
+ order = max(get_order((1UL << ids) * entry_size),
+ order);
if (order >= MAX_ORDER) {
order = MAX_ORDER - 1;
pr_warn("%s: Device Table too large, reduce its page order to %u\n",

\
 
 \ /
  Last update: 2015-05-23 21:41    [W:0.164 / U:4.036 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site