Commit e88bd316 authored by Zenghui Yu's avatar Zenghui Yu Committed by Marc Zyngier
Browse files

irqchip/gic-v4.1: Fix programming of GICR_VPROPBASER_4_1_SIZE



The Size field of GICv4.1 VPROPBASER register indicates number of
pages minus one and together Page_Size and Size control the vPEID
width. Let's respect this requirement of the architecture.
Signed-off-by: default avatarZenghui Yu <yuzenghui@huawei.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200206075711.1275-2-yuzenghui@huawei.com
parent 10794522
......@@ -2531,7 +2531,7 @@ static int allocate_vpe_l1_table(void)
npg = 1;
}
val |= FIELD_PREP(GICR_VPROPBASER_4_1_SIZE, npg);
val |= FIELD_PREP(GICR_VPROPBASER_4_1_SIZE, npg - 1);
/* Right, that's the number of CPU pages we need for L1 */
np = DIV_ROUND_UP(npg * psz, PAGE_SIZE);
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment