[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v7a 08/14] xen/arm: move vgic defines to vgic header file
From: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx> gic.h contains defines of vgic. Move these to vgic header file. Also move inline functions and defines/macros in vgic.c to vgic.h. These vgic functions and macros can be used by other GIC HW specific VGIC drivers, Signed-off-by: Vijaya Kumar K <Vijaya.Kumar@xxxxxxxxxxxxxxxxxx> Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> Acked-by: Julien Grall <julien.grall@xxxxxxxxxx> --- xen/arch/arm/irq.c | 1 + xen/arch/arm/time.c | 1 + xen/arch/arm/vgic.c | 53 -------------------------------------- xen/arch/arm/vpsci.c | 1 + xen/arch/arm/vtimer.c | 1 + xen/include/asm-arm/gic.h | 7 ----- xen/include/asm-arm/vgic.h | 61 ++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 65 insertions(+), 60 deletions(-) diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c index 9c141bc..3a8acbf 100644 --- a/xen/arch/arm/irq.c +++ b/xen/arch/arm/irq.c @@ -26,6 +26,7 @@ #include <xen/sched.h> #include <asm/gic.h> +#include <asm/vgic.h> static unsigned int local_irqs_type[NR_LOCAL_IRQS]; static DEFINE_SPINLOCK(local_irqs_type_lock); diff --git a/xen/arch/arm/time.c b/xen/arch/arm/time.c index 06cc709..4c3e1a6 100644 --- a/xen/arch/arm/time.c +++ b/xen/arch/arm/time.c @@ -32,6 +32,7 @@ #include <asm/system.h> #include <asm/time.h> #include <asm/gic.h> +#include <asm/vgic.h> #include <asm/cpufeature.h> #include <asm/platform.h> diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c index d01f1d9..96bd7c1 100644 --- a/xen/arch/arm/vgic.c +++ b/xen/arch/arm/vgic.c @@ -33,35 +33,10 @@ #define REG(n) (n) -/* Number of ranks of interrupt registers for a domain */ -#define DOMAIN_NR_RANKS(d) (((d)->arch.vgic.nr_lines+31)/32) - static int vgic_distr_mmio_read(struct vcpu *v, mmio_info_t *info); static int vgic_distr_mmio_write(struct vcpu *v, mmio_info_t *info); /* - * Rank containing GICD_<FOO><n> for GICD_<FOO> with - * <b>-bits-per-interrupt - */ -static inline int REG_RANK_NR(int b, uint32_t n) -{ - switch ( b ) - { - case 8: return n >> 3; - case 4: return n >> 2; - case 2: return n >> 1; - case 1: return n; - default: BUG(); - } -} - -/* - * Offset of GICD_<FOO><n> with its rank, for GICD_<FOO> with - * <b>-bits-per-interrupt. - */ -#define REG_RANK_INDEX(b, n) (((n) >> 2) & ((b)-1)) - -/* * Returns rank corresponding to a GICD_<FOO><n> register for * GICD_<FOO> with <b>-bits-per-interrupt. */ @@ -174,34 +149,6 @@ int vcpu_vgic_free(struct vcpu *v) return 0; } -#define vgic_lock(v) spin_lock_irq(&(v)->domain->arch.vgic.lock) -#define vgic_unlock(v) spin_unlock_irq(&(v)->domain->arch.vgic.lock) - -#define vgic_lock_rank(v, r) spin_lock(&(r)->lock) -#define vgic_unlock_rank(v, r) spin_unlock(&(r)->lock) - -static uint32_t vgic_byte_read(uint32_t val, int sign, int offset) -{ - int byte = offset & 0x3; - - val = val >> (8*byte); - if ( sign && (val & 0x80) ) - val |= 0xffffff00; - else - val &= 0x000000ff; - return val; -} - -static void vgic_byte_write(uint32_t *reg, uint32_t var, int offset) -{ - int byte = offset & 0x3; - - var &= (0xff << (8*byte)); - - *reg &= ~(0xff << (8*byte)); - *reg |= var; -} - static int vgic_distr_mmio_read(struct vcpu *v, mmio_info_t *info) { struct hsr_dabt dabt = info->dabt; diff --git a/xen/arch/arm/vpsci.c b/xen/arch/arm/vpsci.c index 1ceb8cb..80678f6 100644 --- a/xen/arch/arm/vpsci.c +++ b/xen/arch/arm/vpsci.c @@ -16,6 +16,7 @@ #include <asm/current.h> #include <asm/gic.h> +#include <asm/vgic.h> #include <asm/psci.h> int do_psci_cpu_on(uint32_t vcpuid, register_t entry_point) diff --git a/xen/arch/arm/vtimer.c b/xen/arch/arm/vtimer.c index c268873..690657b 100644 --- a/xen/arch/arm/vtimer.c +++ b/xen/arch/arm/vtimer.c @@ -24,6 +24,7 @@ #include <asm/irq.h> #include <asm/time.h> #include <asm/gic.h> +#include <asm/vgic.h> #include <asm/regs.h> extern s_time_t ticks_to_ns(uint64_t ticks); diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h index 5ff4477..ed610cb 100644 --- a/xen/include/asm-arm/gic.h +++ b/xen/include/asm-arm/gic.h @@ -188,13 +188,6 @@ enum gic_version { }; extern enum gic_version gic_hw_version(void); -extern int domain_vgic_init(struct domain *d); -extern void domain_vgic_free(struct domain *d); - -extern int vcpu_vgic_init(struct vcpu *v); - -extern void vgic_vcpu_inject_irq(struct vcpu *v, unsigned int irq); -extern void vgic_clear_pending_irqs(struct vcpu *v); extern struct pending_irq *irq_to_pending(struct vcpu *v, unsigned int irq); /* Program the GIC to route an interrupt */ diff --git a/xen/include/asm-arm/vgic.h b/xen/include/asm-arm/vgic.h index 0fd5b41..92f1e86 100644 --- a/xen/include/asm-arm/vgic.h +++ b/xen/include/asm-arm/vgic.h @@ -18,6 +18,8 @@ #ifndef __ASM_ARM_VGIC_H__ #define __ASM_ARM_VGIC_H__ +#include <xen/bitops.h> + /* Represents state corresponding to a block of 32 interrupts */ struct vgic_irq_rank { spinlock_t lock; /* Covers access to all other members of this struct */ @@ -27,6 +29,65 @@ struct vgic_irq_rank { uint32_t itargets[8]; }; +/* Number of ranks of interrupt registers for a domain */ +#define DOMAIN_NR_RANKS(d) (((d)->arch.vgic.nr_lines+31)/32) + +#define vgic_lock(v) spin_lock_irq(&(v)->domain->arch.vgic.lock) +#define vgic_unlock(v) spin_unlock_irq(&(v)->domain->arch.vgic.lock) + +#define vgic_lock_rank(v, r) spin_lock(&(r)->lock) +#define vgic_unlock_rank(v, r) spin_unlock(&(r)->lock) + +/* + * Rank containing GICD_<FOO><n> for GICD_<FOO> with + * <b>-bits-per-interrupt + */ +static inline int REG_RANK_NR(int b, uint32_t n) +{ + switch ( b ) + { + case 8: return n >> 3; + case 4: return n >> 2; + case 2: return n >> 1; + case 1: return n; + default: BUG(); + } +} + +static inline uint32_t vgic_byte_read(uint32_t val, int sign, int offset) +{ + int byte = offset & 0x3; + + val = val >> (8*byte); + if ( sign && (val & 0x80) ) + val |= 0xffffff00; + else + val &= 0x000000ff; + return val; +} + +static inline void vgic_byte_write(uint32_t *reg, uint32_t var, int offset) +{ + int byte = offset & 0x3; + + var &= (0xff << (8*byte)); + + *reg &= ~(0xff << (8*byte)); + *reg |= var; +} + +/* + * Offset of GICD_<FOO><n> with its rank, for GICD_<FOO> with + * <b>-bits-per-interrupt. + */ +#define REG_RANK_INDEX(b, n) (((n) >> 2) & ((b)-1)) + +extern int domain_vgic_init(struct domain *d); +extern void domain_vgic_free(struct domain *d); +extern int vcpu_vgic_init(struct vcpu *v); +extern void vgic_vcpu_inject_irq(struct vcpu *v, unsigned int irq); +extern void vgic_clear_pending_irqs(struct vcpu *v); + extern int vcpu_vgic_free(struct vcpu *v); #endif /* __ASM_ARM_VGIC_H__ */ -- 1.7.9.5 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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