From: vijay.kilari@gmail.com
To: Ian.Campbell@citrix.com, julien.grall@citrix.com,
stefano.stabellini@eu.citrix.com, stefano.stabellini@citrix.com,
tim@xen.org, xen-devel@lists.xen.org
Cc: Prasun.Kapoor@caviumnetworks.com,
Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>,
manish.jaggi@caviumnetworks.com, vijay.kilari@gmail.com
Subject: [PATCH v6 20/31] xen/arm: ITS: Introduce helper to get number of event IDs
Date: Mon, 31 Aug 2015 16:36:37 +0530 [thread overview]
Message-ID: <1441019208-2764-21-git-send-email-vijay.kilari@gmail.com> (raw)
In-Reply-To: <1441019208-2764-1-git-send-email-vijay.kilari@gmail.com>
From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
gic_nr_event_ids() helper to read number of event IDs that
ITS hardware supports.
Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
---
xen/arch/arm/gic-v3-its.c | 7 +++++++
xen/arch/arm/gic-v3.c | 3 +++
xen/arch/arm/gic.c | 5 +++++
xen/include/asm-arm/gic-its.h | 1 +
xen/include/asm-arm/gic.h | 4 ++++
5 files changed, 20 insertions(+)
diff --git a/xen/arch/arm/gic-v3-its.c b/xen/arch/arm/gic-v3-its.c
index 77abbc6..f41ec83 100644
--- a/xen/arch/arm/gic-v3-its.c
+++ b/xen/arch/arm/gic-v3-its.c
@@ -138,6 +138,11 @@ void irqdesc_set_its_device(struct irq_desc *desc, struct its_device *dev)
irq_get_msi_desc(desc)->dev = dev;
}
+u32 its_get_nr_event_ids(void)
+{
+ return (1 << its_data.eventid_bits);
+}
+
static struct its_collection *dev_event_to_col(struct its_device *dev,
u32 event)
{
@@ -861,6 +866,8 @@ int its_assign_device(struct domain *d, u32 vdevid, u32 pdevid)
for ( i = 0; i < pdev->event_map.nr_lpis; i++ )
{
+ ASSERT(i < gic_nr_event_ids());
+
plpi = its_get_plpi(pdev, i);
/* TODO: Route lpi */
}
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index bb2c531..538f9f4 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -1315,7 +1315,10 @@ static int __init gicv3_init(void)
* ITS dt node is available
*/
if ( !its_init(&gicv3.rdist_data) )
+ {
gicv3_info.lpi_supported = 1;
+ gicv3_info.nr_event_ids = its_get_nr_event_ids();
+ }
else
gicv3_info.lpi_supported = 0;
}
diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c
index 555ad3c..2f23a14 100644
--- a/xen/arch/arm/gic.c
+++ b/xen/arch/arm/gic.c
@@ -81,6 +81,11 @@ bool_t gic_lpi_supported(void)
return gic_hw_ops->info->lpi_supported;
}
+unsigned int gic_nr_event_ids(void)
+{
+ return gic_hw_ops->info->nr_event_ids;
+}
+
void gic_save_state(struct vcpu *v)
{
ASSERT(!local_irq_is_enabled());
diff --git a/xen/include/asm-arm/gic-its.h b/xen/include/asm-arm/gic-its.h
index 7077477..a3d21f7 100644
--- a/xen/include/asm-arm/gic-its.h
+++ b/xen/include/asm-arm/gic-its.h
@@ -330,6 +330,7 @@ unsigned int irqdesc_get_lpi_event(struct irq_desc *desc);
struct its_device *irqdesc_get_its_device(struct irq_desc *desc);
void irqdesc_set_its_device(struct irq_desc *desc, struct its_device *dev);
bool_t is_valid_collection(struct domain *d, uint32_t col);
+unsigned int its_get_nr_event_ids(void);
int its_init(struct rdist_prop *rdists);
int its_cpu_init(void);
int its_add_device(u32 devid, u32 nr_ites, struct dt_device_node *dt_its);
diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h
index 15c76d0..2b26e28 100644
--- a/xen/include/asm-arm/gic.h
+++ b/xen/include/asm-arm/gic.h
@@ -283,6 +283,8 @@ extern void gic_dump_info(struct vcpu *v);
/* Number of interrupt lines */
extern unsigned int gic_number_lines(void);
+/* Number of event ids supported */
+extern unsigned int gic_nr_event_ids(void);
/* LPI support info */
bool_t gic_lpi_supported(void);
@@ -304,6 +306,8 @@ struct gic_info {
const struct dt_device_node *node;
/* Number of IRQ ID bits supported */
uint32_t nr_id_bits;
+ /* Number of Event IDs supported */
+ uint32_t nr_event_ids;
/* LPIs are support information */
bool_t lpi_supported;
};
--
1.7.9.5
next prev parent reply other threads:[~2015-08-31 11:06 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-31 11:06 [PATCH v6 00/31] Add ITS support vijay.kilari
2015-08-31 11:06 ` [PATCH v6 01/31] xen/dt: Handle correctly node with interrupt-map in dt_for_each_irq_map vijay.kilari
2015-08-31 14:20 ` Julien Grall
2015-09-02 15:28 ` Ian Campbell
2015-09-02 15:30 ` Wei Liu
2015-09-02 15:45 ` Julien Grall
2015-09-02 15:52 ` Ian Campbell
2015-09-04 14:41 ` Ian Campbell
2015-08-31 11:06 ` [PATCH v6 02/31] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-08-31 11:06 ` [PATCH v6 03/31] xen: Add log2 functionality vijay.kilari
2015-08-31 11:21 ` Jan Beulich
2015-08-31 11:06 ` [PATCH v6 04/31] xen/arm: Set nr_cpu_ids to available number of cpus vijay.kilari
2015-08-31 14:25 ` Julien Grall
2015-09-09 12:48 ` Ian Campbell
2015-08-31 11:06 ` [PATCH v6 05/31] xen/arm: Rename NR_IRQs and vgic_num_irqs helper function vijay.kilari
2015-08-31 14:40 ` Julien Grall
2015-09-09 13:08 ` Ian Campbell
2015-09-09 13:23 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 06/31] xen/arm: ITS: Port ITS driver to Xen vijay.kilari
2015-08-31 15:41 ` Julien Grall
2015-09-03 17:02 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 07/31] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-08-31 11:06 ` [PATCH v6 08/31] xen/arm: ITS: Introduce msi_desc for LPIs vijay.kilari
2015-08-31 16:20 ` Julien Grall
2015-09-09 13:16 ` Ian Campbell
2015-09-09 13:28 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 09/31] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-09-03 17:34 ` Julien Grall
2015-09-09 13:28 ` Ian Campbell
2015-09-09 13:44 ` Julien Grall
2015-09-09 15:07 ` Ian Campbell
2015-09-09 16:19 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 10/31] xen/arm: ITS: Introduce gic_is_lpi helper function vijay.kilari
2015-08-31 16:49 ` Julien Grall
2015-09-01 9:02 ` Vijay Kilari
2015-09-01 11:40 ` Julien Grall
2015-09-01 11:56 ` Vijay Kilari
2015-09-01 13:02 ` Julien Grall
2015-09-03 6:32 ` Vijay Kilari
2015-09-03 9:48 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 11/31] xen/arm: ITS: Enable compilation of physical ITS driver vijay.kilari
2015-08-31 11:06 ` [PATCH v6 12/31] xen/arm: Move vgic locking inside get_irq_priority callback vijay.kilari
2015-08-31 16:34 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 13/31] xen/arm: ITS: implement hw_irq_controller for LPIs vijay.kilari
2015-08-31 17:53 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 14/31] xen/arm: ITS: Initialize physical ITS and export lpi support vijay.kilari
2015-08-31 18:35 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 15/31] xen/arm: ITS: Add virtual ITS driver vijay.kilari
2015-09-02 17:20 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 16/31] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-09-03 15:07 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 17/31] xen/arm: ITS: Store LPIs allocated and IRQ ID bits per domain vijay.kilari
2015-09-03 16:25 ` Julien Grall
2015-09-07 6:59 ` Vijay Kilari
2015-09-07 10:56 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 18/31] xen/arm: ITS: Enable virtual ITS driver vijay.kilari
2015-08-31 11:06 ` [PATCH v6 19/31] xen/arm: ITS: Export ITS info to Virtual ITS vijay.kilari
2015-09-03 16:48 ` Julien Grall
2015-08-31 11:06 ` vijay.kilari [this message]
2015-09-03 17:51 ` [PATCH v6 20/31] xen/arm: ITS: Introduce helper to get number of event IDs Julien Grall
2015-08-31 11:06 ` [PATCH v6 21/31] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-09-07 13:14 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 22/31] xen/arm: ITS: Add virtual ITS availability check helper vijay.kilari
2015-09-07 13:41 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 23/31] xen/arm: ITS: Add 32-bit access to GICR_TYPER vijay.kilari
2015-08-31 16:06 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 24/31] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-09-07 14:20 ` Julien Grall
2015-09-07 15:26 ` Vijay Kilari
2015-09-09 13:55 ` Ian Campbell
2015-09-09 16:11 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 25/31] xen/arm: ITS: Allocate irq descriptors for LPIs vijay.kilari
2015-08-31 11:06 ` [PATCH v6 26/31] xen/arm: ITS: Allocate pending_lpi " vijay.kilari
2015-08-31 11:06 ` [PATCH v6 27/31] xen/arm: ITS: Route LPIs vijay.kilari
2015-08-31 11:06 ` [PATCH v6 28/31] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-08-31 11:06 ` [PATCH v6 29/31] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-08-31 19:07 ` Julien Grall
2015-08-31 11:06 ` [PATCH v6 30/31] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-08-31 11:06 ` [PATCH v6 31/31] xen/arm: ITS: Add pci devices in ThunderX vijay.kilari
2015-09-09 15:22 ` Ian Campbell
2015-09-02 15:38 ` [PATCH v6 00/31] Add ITS support Ian Campbell
2015-09-02 15:52 ` Ian Campbell
2015-09-03 16:45 ` Julien Grall
2015-09-09 15:29 ` Ian Campbell
2015-09-14 11:00 ` Vijay Kilari
2015-09-14 11:09 ` Julien Grall
2015-09-14 13:04 ` Vijay Kilari
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