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KVM: arm64: vgic-v3: vgic_v3_lpi_sync_pending_status

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this new helper synchronizes the irq pending_latch
with the LPI pending bit status found in rdist pending table.
As the status is consumed, we reset the bit in pending table.

As we need the PENDBASER_ADDRESS() in vgic-v3, let's move its
definition in the irqchip header. We restore the full length
of the field, ie [51:16]. Same for PROPBASER_ADDRESS with full
field length of [51:12].

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
This commit is contained in:
Eric Auger 2017-05-04 11:19:52 +02:00 • committed by Christoffer Dall
parent 07a3e9a7b8
commit 44de9d6838
4 changed files with 49 additions and 4 deletions
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2
include/linux/irqchip/arm-gic-v3.h
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@ -159,6 +159,8 @@
#define GICR_PROPBASER_RaWaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
#define GICR_PROPBASER_IDBITS_MASK (0x1f)
#define GICR_PROPBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 12))
#define GICR_PENDBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 16))
#define GICR_PENDBASER_SHAREABILITY_SHIFT (10)
#define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT (7)