From mboxrd@z Thu Jan 1 00:00:00 1970 From: vijay.kilari@gmail.com Subject: [RFC PATCH v3 14/18] xen/arm: ITS: Initialize physical ITS Date: Mon, 22 Jun 2015 17:31:53 +0530 Message-ID: <1434974517-12136-15-git-send-email-vijay.kilari@gmail.com> References: <1434974517-12136-1-git-send-email-vijay.kilari@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1434974517-12136-1-git-send-email-vijay.kilari@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org 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 , manish.jaggi@caviumnetworks.com, vijay.kilari@gmail.com List-Id: xen-devel@lists.xenproject.org From: Vijaya Kumar K Initialize physical ITS driver from GIC v3 driver if LPIs are supported by hardware Signed-off-by: Vijaya Kumar K --- xen/arch/arm/gic-v3.c | 7 +++++++ xen/include/asm-arm/gic-its.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c index 793f2f0..18971ed 100644 --- a/xen/arch/arm/gic-v3.c +++ b/xen/arch/arm/gic-v3.c @@ -700,6 +700,10 @@ static int __cpuinit gicv3_cpu_init(void) if ( gicv3_enable_redist() ) return -ENODEV; + /* Give LPIs a spin */ + if ( gicv3_info.lpi_supported ) + its_cpu_init(); + /* Set priority on PPI and SGI interrupts */ priority = (GIC_PRI_IPI << 24 | GIC_PRI_IPI << 16 | GIC_PRI_IPI << 8 | GIC_PRI_IPI); @@ -1327,6 +1331,9 @@ static int __init gicv3_init(void) else gicv3_info.lpi_supported = 0; + if ( gicv3_info.lpi_supported ) + its_init(&gicv3.rdist_data); + gicv3_dist_init(); res = gicv3_cpu_init(); gicv3_hyp_init(); diff --git a/xen/include/asm-arm/gic-its.h b/xen/include/asm-arm/gic-its.h index f34a207..c674b3f 100644 --- a/xen/include/asm-arm/gic-its.h +++ b/xen/include/asm-arm/gic-its.h @@ -274,6 +274,8 @@ static inline uint32_t its_decode_devid(struct domain *d, its_cmd_block *cmd) return (cmd->raw_cmd[0] >> 32); } +int its_cpu_init(void); +int its_init(struct rdist_prop *rdist); void its_set_affinity(struct irq_desc *desc, int cpu); void lpi_set_config(struct irq_desc *desc, int enable); uint8_t vgic_its_get_priority(struct vcpu *v, uint32_t pid); -- 1.7.9.5