From mboxrd@z Thu Jan 1 00:00:00 1970 From: vijay.kilari@gmail.com Subject: [PATCH v5 13/22] xen/arm: ITS: Implement gic_is_lpi helper function Date: Mon, 27 Jul 2015 16:41:55 +0530 Message-ID: <1437995524-19772-14-git-send-email-vijay.kilari@gmail.com> References: <1437995524-19772-1-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: <1437995524-19772-1-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, manish.jaggi@caviumnetworks.com, Vijaya Kumar K , vijay.kilari@gmail.com List-Id: xen-devel@lists.xenproject.org From: Vijaya Kumar K Helper function gic_is_lpi() is used to find if irq is lpi or not. For GICv2 platforms this function returns 0. Signed-off-by: Vijaya Kumar K --- xen/arch/arm/gic-hip04.c | 6 ++++++ xen/arch/arm/gic-v2.c | 6 ++++++ xen/arch/arm/gic-v3.c | 6 ++++++ xen/arch/arm/gic.c | 5 +++++ xen/include/asm-arm/gic.h | 2 ++ 5 files changed, 25 insertions(+) diff --git a/xen/arch/arm/gic-hip04.c b/xen/arch/arm/gic-hip04.c index c5ed545..fdd428a 100644 --- a/xen/arch/arm/gic-hip04.c +++ b/xen/arch/arm/gic-hip04.c @@ -87,6 +87,11 @@ static DEFINE_PER_CPU(u16, gic_cpu_id); #define HIP04_GICH_APR 0x70 #define HIP04_GICH_LR 0x80 +static bool_t hip04gic_is_lpi(unsigned int irq) +{ + return 0; +} + static inline void writeb_gicd(uint8_t val, unsigned int offset) { writeb_relaxed(val, gicv2.map_dbase + offset); @@ -727,6 +732,7 @@ const static struct gic_hw_operations hip04gic_ops = { .read_vmcr_priority = hip04gic_read_vmcr_priority, .read_apr = hip04gic_read_apr, .make_hwdom_dt_node = hip04gic_make_hwdom_dt_node, + .is_lpi = hip04gic_is_lpi, }; /* Set up the GIC */ diff --git a/xen/arch/arm/gic-v2.c b/xen/arch/arm/gic-v2.c index 596126d..5cc2bca 100644 --- a/xen/arch/arm/gic-v2.c +++ b/xen/arch/arm/gic-v2.c @@ -81,6 +81,11 @@ static DEFINE_PER_CPU(u8, gic_cpu_id); /* Maximum cpu interface per GIC */ #define NR_GIC_CPU_IF 8 +static bool_t gicv2_is_lpi(unsigned int irq) +{ + return 0; +} + static inline void writeb_gicd(uint8_t val, unsigned int offset) { writeb_relaxed(val, gicv2.map_dbase + offset); @@ -713,6 +718,7 @@ const static struct gic_hw_operations gicv2_ops = { .read_vmcr_priority = gicv2_read_vmcr_priority, .read_apr = gicv2_read_apr, .make_hwdom_dt_node = gicv2_make_hwdom_dt_node, + .is_lpi = gicv2_is_lpi, }; /* Set up the GIC */ diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c index 91c1b74..3b4dea3 100644 --- a/xen/arch/arm/gic-v3.c +++ b/xen/arch/arm/gic-v3.c @@ -62,6 +62,11 @@ DEFINE_PER_CPU(struct rdist, rdist); #define GICD_RDIST_BASE (this_cpu(rdist).rbase) #define GICD_RDIST_SGI_BASE (GICD_RDIST_BASE + SZ_64K) +static bool_t gicv3_is_lpi(u32 irq) +{ + return (irq >= FIRST_GIC_LPI && irq < (1 << gicv3_info.nr_id_bits)); +} + /* * Saves all 16(Max) LR registers. Though number of LRs implemented * is implementation specific. @@ -1316,6 +1321,7 @@ static const struct gic_hw_operations gicv3_ops = { .read_apr = gicv3_read_apr, .secondary_init = gicv3_secondary_cpu_init, .make_hwdom_dt_node = gicv3_make_hwdom_dt_node, + .is_lpi = gicv3_is_lpi, }; static int __init gicv3_preinit(struct dt_device_node *node, const void *data) diff --git a/xen/arch/arm/gic.c b/xen/arch/arm/gic.c index af8a34b..cb4cdc8 100644 --- a/xen/arch/arm/gic.c +++ b/xen/arch/arm/gic.c @@ -62,6 +62,11 @@ enum gic_version gic_hw_version(void) return gic_hw_ops->info->hw_version; } +bool_t gic_is_lpi(unsigned int irq) +{ + return gic_hw_ops->is_lpi(irq); +} + unsigned int gic_number_lines(void) { return gic_hw_ops->info->nr_lines; diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h index a9a5874..f80f291 100644 --- a/xen/include/asm-arm/gic.h +++ b/xen/include/asm-arm/gic.h @@ -359,12 +359,14 @@ struct gic_hw_operations { int (*secondary_init)(void); int (*make_hwdom_dt_node)(const struct domain *d, const struct dt_device_node *node, void *fdt); + bool_t (*is_lpi)(unsigned int irq); }; void register_gic_ops(const struct gic_hw_operations *ops); int gic_make_hwdom_dt_node(const struct domain *d, const struct dt_device_node *node, void *fdt); +bool_t gic_is_lpi(unsigned int irq); #endif /* __ASSEMBLY__ */ #endif -- 1.7.9.5