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Diffstat (limited to 'arch/system/gic/gic.h')
| -rw-r--r-- | arch/system/gic/gic.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/arch/system/gic/gic.h b/arch/system/gic/gic.h new file mode 100644 index 0000000..91ada03 --- /dev/null +++ b/arch/system/gic/gic.h @@ -0,0 +1,217 @@ +/* + * Copyright (c) 2013, ARM Limited. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __GIC_H__ +#define __GIC_H__ + +#define MAX_SPIS 480 +#define MAX_PPIS 14 +#define MAX_SGIS 16 + +#define GRP0 0 +#define GRP1 1 +#define MAX_PRI_VAL 0xff + +#define ENABLE_GRP0 (1 << 0) +#define ENABLE_GRP1 (1 << 1) + +/* Distributor interface definitions */ +#define GICD_CTLR 0x0 +#define GICD_TYPER 0x4 +#define GICD_IGROUPR 0x80 +#define GICD_ISENABLER 0x100 +#define GICD_ICENABLER 0x180 +#define GICD_ISPENDR 0x200 +#define GICD_ICPENDR 0x280 +#define GICD_ISACTIVER 0x300 +#define GICD_ICACTIVER 0x380 +#define GICD_IPRIORITYR 0x400 +#define GICD_ITARGETSR 0x800 +#define GICD_ICFGR 0xC00 +#define GICD_SGIR 0xF00 +#define GICD_CPENDSGIR 0xF10 +#define GICD_SPENDSGIR 0xF20 + +#define IGROUPR_SHIFT 5 +#define ISENABLER_SHIFT 5 +#define ICENABLER_SHIFT ISENABLER_SHIFT +#define ISPENDR_SHIFT 5 +#define ICPENDR_SHIFT ISPENDR_SHIFT +#define ISACTIVER_SHIFT 5 +#define ICACTIVER_SHIFT ISACTIVER_SHIFT +#define IPRIORITYR_SHIFT 2 +#define ITARGETSR_SHIFT 2 +#define ICFGR_SHIFT 4 +#define CPENDSGIR_SHIFT 2 +#define SPENDSGIR_SHIFT CPENDSGIR_SHIFT + +/* GICD_TYPER bit definitions */ +#define IT_LINES_NO_MASK 0x1f + +/* Physical CPU Interface registers */ +#define GICC_CTLR 0x0 +#define GICC_PMR 0x4 +#define GICC_BPR 0x8 +#define GICC_IAR 0xC +#define GICC_EOIR 0x10 +#define GICC_RPR 0x14 +#define GICC_HPPIR 0x18 +#define GICC_IIDR 0xFC +#define GICC_DIR 0x1000 +#define GICC_PRIODROP GICC_EOIR + +/* GICC_CTLR bit definitions */ +#define EOI_MODE_NS (1 << 10) +#define EOI_MODE_S (1 << 9) +#define IRQ_BYP_DIS_GRP1 (1 << 8) +#define FIQ_BYP_DIS_GRP1 (1 << 7) +#define IRQ_BYP_DIS_GRP0 (1 << 6) +#define FIQ_BYP_DIS_GRP0 (1 << 5) +#define CBPR (1 << 4) +#define FIQ_EN (1 << 3) +#define ACK_CTL (1 << 2) + +/* GICC_IIDR bit masks and shifts */ +#define GICC_IIDR_PID_SHIFT 20 +#define GICC_IIDR_ARCH_SHIFT 16 +#define GICC_IIDR_REV_SHIFT 12 +#define GICC_IIDR_IMP_SHIFT 0 + +#define GICC_IIDR_PID_MASK 0xfff +#define GICC_IIDR_ARCH_MASK 0xf +#define GICC_IIDR_REV_MASK 0xf +#define GICC_IIDR_IMP_MASK 0xfff + +/* HYP view virtual CPU Interface registers */ +#define GICH_CTL 0x0 +#define GICH_VTR 0x4 +#define GICH_ELRSR0 0x30 +#define GICH_ELRSR1 0x34 +#define GICH_APR0 0xF0 +#define GICH_LR_BASE 0x100 + +/* Virtual CPU Interface registers */ +#define GICV_CTL 0x0 +#define GICV_PRIMASK 0x4 +#define GICV_BP 0x8 +#define GICV_INTACK 0xC +#define GICV_EOI 0x10 +#define GICV_RUNNINGPRI 0x14 +#define GICV_HIGHESTPEND 0x18 +#define GICV_DEACTIVATE 0x1000 + +/* GICv3 Re-distributor interface registers & shifts */ +#define GICR_PCPUBASE_SHIFT 0x11 +#define GICR_WAKER 0x14 + +/* GICR_WAKER bit definitions */ +#define WAKER_CA (1UL << 2) +#define WAKER_PS (1UL << 1) + +/* GICv3 ICC_SRE register bit definitions*/ +#define ICC_SRE_EN (1UL << 3) +#define ICC_SRE_SRE (1UL << 0) + +#ifndef __ASSEMBLY__ + +/******************************************************************************* + * Function prototypes + ******************************************************************************/ +extern inline unsigned int gicd_read_typer(unsigned int); +extern inline unsigned int gicd_read_ctlr(unsigned int); +extern unsigned int gicd_read_igroupr(unsigned int, unsigned int); +extern unsigned int gicd_read_isenabler(unsigned int, unsigned int); +extern unsigned int gicd_read_icenabler(unsigned int, unsigned int); +extern unsigned int gicd_read_ispendr(unsigned int, unsigned int); +extern unsigned int gicd_read_icpendr(unsigned int, unsigned int); +extern unsigned int gicd_read_isactiver(unsigned int, unsigned int); +extern unsigned int gicd_read_icactiver(unsigned int, unsigned int); +extern unsigned int gicd_read_ipriorityr(unsigned int, unsigned int); +extern unsigned int gicd_read_itargetsr(unsigned int, unsigned int); +extern unsigned int gicd_read_icfgr(unsigned int, unsigned int); +extern unsigned int gicd_read_sgir(unsigned int); +extern unsigned int gicd_read_cpendsgir(unsigned int, unsigned int); +extern unsigned int gicd_read_spendsgir(unsigned int, unsigned int); +extern inline void gicd_write_ctlr(unsigned int, unsigned int); +extern void gicd_write_igroupr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_isenabler(unsigned int, unsigned int, unsigned int); +extern void gicd_write_icenabler(unsigned int, unsigned int, unsigned int); +extern void gicd_write_ispendr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_icpendr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_isactiver(unsigned int, unsigned int, unsigned int); +extern void gicd_write_icactiver(unsigned int, unsigned int, unsigned int); +extern void gicd_write_ipriorityr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_itargetsr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_icfgr(unsigned int, unsigned int, unsigned int); +extern void gicd_write_sgir(unsigned int, unsigned int); +extern void gicd_write_cpendsgir(unsigned int, unsigned int, unsigned int); +extern void gicd_write_spendsgir(unsigned int, unsigned int, unsigned int); +extern unsigned int gicd_get_igroupr(unsigned int, unsigned int); +extern void gicd_set_igroupr(unsigned int, unsigned int); +extern void gicd_clr_igroupr(unsigned int, unsigned int); +extern void gicd_set_isenabler(unsigned int, unsigned int); +extern void gicd_set_icenabler(unsigned int, unsigned int); +extern void gicd_set_ispendr(unsigned int, unsigned int); +extern void gicd_set_icpendr(unsigned int, unsigned int); +extern void gicd_set_isactiver(unsigned int, unsigned int); +extern void gicd_set_icactiver(unsigned int, unsigned int); +extern void gicd_set_ipriorityr(unsigned int, unsigned int, unsigned int); +extern void gicd_set_itargetsr(unsigned int, unsigned int, unsigned int); +extern inline unsigned int gicc_read_ctlr(unsigned int); +extern inline unsigned int gicc_read_pmr(unsigned int); +extern inline unsigned int gicc_read_BPR(unsigned int); +extern inline unsigned int gicc_read_IAR(unsigned int); +extern inline unsigned int gicc_read_EOIR(unsigned int); +extern inline unsigned int gicc_read_hppir(unsigned int); +extern inline unsigned int gicc_read_iidr(unsigned int); +extern inline unsigned int gicc_read_dir(unsigned int); +extern inline void gicc_write_ctlr(unsigned int, unsigned int); +extern inline void gicc_write_pmr(unsigned int, unsigned int); +extern inline void gicc_write_BPR(unsigned int, unsigned int); +extern inline void gicc_write_IAR(unsigned int, unsigned int); +extern inline void gicc_write_EOIR(unsigned int, unsigned int); +extern inline void gicc_write_hppir(unsigned int, unsigned int); +extern inline void gicc_write_dir(unsigned int, unsigned int); + +/* GICv3 functions */ +extern inline unsigned int gicr_read_waker(unsigned int); +extern inline void gicr_write_waker(unsigned int, unsigned int); +extern unsigned int read_icc_sre_el1(void); +extern unsigned int read_icc_sre_el2(void); +extern unsigned int read_icc_sre_el3(void); +extern void write_icc_sre_el1(unsigned int); +extern void write_icc_sre_el2(unsigned int); +extern void write_icc_sre_el3(unsigned int); +extern void write_icc_pmr_el1(unsigned int); + +#endif /*__ASSEMBLY__*/ + +#endif /* __GIC_H__ */ + |