From: Marc Zyngier <marc.zyngier@arm.com>
To: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Cc: Christoffer Dall <christoffer.dall@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Eric Auger <eric.auger@redhat.com>,
Shanker Donthineni <shankerd@codeaurora.org>,
Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH v2 09/52] irqchip/gic-v3-its: Allow use of indirect VCPU tables
Date: Wed, 28 Jun 2017 16:03:28 +0100 [thread overview]
Message-ID: <20170628150411.15846-10-marc.zyngier@arm.com> (raw)
In-Reply-To: <20170628150411.15846-1-marc.zyngier@arm.com>
The VCPU tables can be quite sparse as well, and it makes sense
to use indirect tables as well if possible.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
drivers/irqchip/irq-gic-v3-its.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 2feecdf40216..27f57c528026 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1068,10 +1068,13 @@ static int its_setup_baser(struct its_node *its, struct its_baser *baser,
return 0;
}
-static bool its_parse_baser_device(struct its_node *its, struct its_baser *baser,
- u32 psz, u32 *order)
+static bool its_parse_indirect_baser(struct its_node *its,
+ struct its_baser *baser,
+ u32 psz, u32 *order)
{
- u64 esz = GITS_BASER_ENTRY_SIZE(its_read_baser(its, baser));
+ u64 tmp = its_read_baser(its, baser);
+ u64 type = GITS_BASER_TYPE(tmp);
+ u64 esz = GITS_BASER_ENTRY_SIZE(tmp);
u64 val = GITS_BASER_InnerShareable | GITS_BASER_RaWaWb;
u32 ids = its->device_ids;
u32 new_order = *order;
@@ -1110,8 +1113,9 @@ static bool its_parse_baser_device(struct its_node *its, struct its_baser *baser
if (new_order >= MAX_ORDER) {
new_order = MAX_ORDER - 1;
ids = ilog2(PAGE_ORDER_TO_SIZE(new_order) / (int)esz);
- pr_warn("ITS@%pa: Device Table too large, reduce ids %u->%u\n",
- &its->phys_base, its->device_ids, ids);
+ pr_warn("ITS@%pa: %s Table too large, reduce ids %u->%u\n",
+ &its->phys_base, its_base_type_string[type],
+ its->device_ids, ids);
}
*order = new_order;
@@ -1159,11 +1163,16 @@ static int its_alloc_tables(struct its_node *its)
u32 order = get_order(psz);
bool indirect = false;
- if (type == GITS_BASER_TYPE_NONE)
+ switch (type) {
+ case GITS_BASER_TYPE_NONE:
continue;
- if (type == GITS_BASER_TYPE_DEVICE)
- indirect = its_parse_baser_device(its, baser, psz, &order);
+ case GITS_BASER_TYPE_DEVICE:
+ case GITS_BASER_TYPE_VCPU:
+ indirect = its_parse_indirect_baser(its, baser,
+ psz, &order);
+ break;
+ }
err = its_setup_baser(its, baser, cache, shr, psz, order, indirect);
if (err < 0) {
--
2.11.0
next prev parent reply other threads:[~2017-06-28 15:19 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-28 15:03 [PATCH v2 00/52] irqchip: KVM: Add support for GICv4 Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 01/52] genirq: Let irq_set_vcpu_affinity() iterate over hierarchy Marc Zyngier
2017-07-04 21:15 ` Thomas Gleixner
2017-06-28 15:03 ` [PATCH v2 02/52] irqchip/gic-v3: Add redistributor iterator Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 03/52] irqchip/gic-v3: Add VLPI/DirectLPI discovery Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 04/52] irqchip/gic-v3-its: Move LPI definitions around Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 05/52] irqchip/gic-v3-its: Add probing for VLPI properties Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 06/52] irqchip/gic-v3-its: Macro-ize its_send_single_command Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 07/52] irqchip/gic-v3-its: Implement irq_set_irqchip_state for pending state Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 08/52] irqchip/gic-v3-its: Split out property table allocation Marc Zyngier
2017-06-28 15:03 ` Marc Zyngier [this message]
2017-06-28 15:03 ` [PATCH v2 10/52] irqchip/gic-v3-its: Split out pending " Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 11/52] irqchip/gic-v3-its: Rework LPI freeing Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 12/52] irqchip/gic-v3-its: Generalize device table allocation Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 13/52] irqchip/gic-v3-its: Generalize LPI configuration Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 14/52] irqchip/gic-v4: Add management structure definitions Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 15/52] irqchip/gic-v3-its: Add GICv4 ITS command definitions Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 16/52] irqchip/gic-v3-its: Add VLPI configuration hook Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 17/52] irqchip/gic-v3-its: Add VLPI map/unmap operations Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 18/52] irqchip/gic-v3-its: Add VLPI configuration handling Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 19/52] irqchip/gic-v3-its: Add VPE domain infrastructure Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 20/52] irqchip/gic-v3-its: Add VPE irq domain allocation/teardown Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 21/52] irqchip/gic-v3-its: Add VPE irq domain [de]activation Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 22/52] irqchip/gic-v3-its: Add VPENDBASER/VPROPBASER accessors Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 23/52] irqchip/gic-v3-its: Add VPE scheduling Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 24/52] irqchip/gic-v3-its: Add VPE invalidation hook Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 25/52] irqchip/gic-v3-its: Add VPE affinity changes Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 26/52] irqchip/gic-v3-its: Add VPE interrupt masking Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 27/52] irqchip/gic-v3-its: Support VPE doorbell invalidation even when !DirectLPI Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 28/52] irqchip/gic-v3-its: Set implementation defined bit to enable VLPIs Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 29/52] irqchip/gic-v4: Add per-VM VPE domain creation Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 30/52] irqchip/gic-v4: Add VPE command interface Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 31/52] irqchip/gic-v4: Add VLPI configuration interface Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 32/52] irqchip/gic-v4: Add some basic documentation Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 33/52] irqchip/gic-v4: Enable low-level GICv4 operations Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 34/52] irqchip/gic-v3: Advertise GICv4 support to KVM Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 35/52] KVM: arm/arm64: vgic: Move kvm_vgic_destroy call around Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 36/52] KVM: arm/arm64: vITS: Add MSI translation helpers Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 37/52] KVM: arm/arm64: GICv4: Add init and teardown of the vPE irq domain Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 38/52] KVM: arm/arm64: GICv4: Wire init/teardown of per-VM support Marc Zyngier
2017-07-08 11:26 ` Shanker Donthineni
2017-07-10 16:34 ` Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 39/52] KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass Marc Zyngier
2017-06-28 15:03 ` [PATCH v2 40/52] KVM: arm/arm64: GICv4: Handle INT command applied to a VLPI Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 41/52] KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 42/52] KVM: arm/arm64: GICv4: Handle MOVI applied to a VLPI Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 43/52] KVM: arm/arm64: GICv4: Handle CLEAR " Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 44/52] KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 45/52] KVM: arm/arm64: GICv4: Propagate property updates to VLPIs Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 46/52] KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 47/52] KVM: arm/arm64: GICv4: Propagate VLPI properties at map time Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 48/52] KVM: arm/arm64: GICv4: Add doorbell interrupt handling Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 49/52] KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 50/52] KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 51/52] KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint Marc Zyngier
2017-06-28 15:04 ` [PATCH v2 52/52] KVM: arm/arm64: GICv4: Enable VLPI support Marc Zyngier
2017-07-01 14:54 ` [PATCH v2 00/52] irqchip: KVM: Add support for GICv4 Shanker Donthineni
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