diff options
Diffstat (limited to 'arch/arm/include/asm/gic-v3.h')
| -rw-r--r-- | arch/arm/include/asm/gic-v3.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/arch/arm/include/asm/gic-v3.h b/arch/arm/include/asm/gic-v3.h new file mode 100644 index 0000000000..ac6c9e7013 --- /dev/null +++ b/arch/arm/include/asm/gic-v3.h @@ -0,0 +1,134 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2019 Broadcom. + */ + +#ifndef __GIC_V3_H__ +#define __GIC_V3_H__ + +#define GICR_CTLR_ENABLE_LPIS BIT(0) +#define GICR_CTLR_RWP BIT(3) + +#define GICR_TYPER_CPU_NUMBER(r) (((r) >> 8) & 0xffff) + +#define GICR_WAKER_PROCESSORSLEEP BIT(1) +#define GICR_WAKER_CHILDRENASLEEP BIT(2) + +#define GIC_BASER_CACHE_NCNB 0ULL +#define GIC_BASER_CACHE_SAMEASINNER 0ULL +#define GIC_BASER_CACHE_NC 1ULL +#define GIC_BASER_CACHE_RAWT 2ULL +#define GIC_BASER_CACHE_RAWB 3ULL +#define GIC_BASER_CACHE_WAWT 4ULL +#define GIC_BASER_CACHE_WAWB 5ULL +#define GIC_BASER_CACHE_RAWAWT 6ULL +#define GIC_BASER_CACHE_RAWAWB 7ULL +#define GIC_BASER_CACHE_MASK 7ULL +#define GIC_BASER_NONSHAREABLE 0ULL +#define GIC_BASER_INNERSHAREABLE 1ULL +#define GIC_BASER_OUTERSHAREABLE 2ULL +#define GIC_BASER_SHAREABILITY_MASK 3ULL + +#define GIC_BASER_CACHEABILITY(reg, inner_outer, type) \ + (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT) + +#define GIC_BASER_SHAREABILITY(reg, type) \ + (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT) + +/* encode a size field of width @w containing @n - 1 units */ +#define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) &\ + GENMASK_ULL(((w) - 1), 0)) + +#define GICR_PROPBASER_SHAREABILITY_SHIFT (10) +#define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT (7) +#define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT (56) +#define GICR_PROPBASER_SHAREABILITY_MASK \ + GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK) +#define GICR_PROPBASER_INNER_CACHEABILITY_MASK \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK) +#define GICR_PROPBASER_OUTER_CACHEABILITY_MASK \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK) +#define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK + +#define GICR_PROPBASER_INNERSHAREABLE \ + GIC_BASER_SHAREABILITY(GICR_PROPBASER, INNERSHAREABLE) + +#define GICR_PROPBASER_NCNB \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, NCNB) +#define GICR_PROPBASER_NC \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, NC) +#define GICR_PROPBASER_RAWT \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RAWT) +#define GICR_PROPBASER_RAWB \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RAWB) +#define GICR_PROPBASER_WAWT \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WAWT) +#define GICR_PROPBASER_WAWB \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WAWB) +#define GICR_PROPBASER_RAWAWT \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RAWAWT) +#define GICR_PROPBASER_RAWAWB \ + GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RAWAWB) + +#define GICR_PROPBASER_IDBITS_MASK (0x1f) +#define GICR_PROPBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 12)) +#define GICR_PENDBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 16)) + +#define GICR_PENDBASER_SHAREABILITY_SHIFT (10) +#define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT (7) +#define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT (56) +#define GICR_PENDBASER_SHAREABILITY_MASK \ + GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK) +#define GICR_PENDBASER_INNER_CACHEABILITY_MASK \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK) +#define GICR_PENDBASER_OUTER_CACHEABILITY_MASK \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK) +#define GICR_PENDBASER_CACHEABILITY_MASK \ + GICR_PENDBASER_INNER_CACHEABILITY_MASK + +#define GICR_PENDBASER_INNERSHAREABLE \ + GIC_BASER_SHAREABILITY(GICR_PENDBASER, INNERSHAREABLE) + +#define GICR_PENDBASER_NCNB \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, NCNB) +#define GICR_PENDBASER_NC \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, NC) +#define GICR_PENDBASER_RAWT \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RAWT) +#define GICR_PENDBASER_RAWB \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RAWB) +#define GICR_PENDBASER_WAWT \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WAWT) +#define GICR_PENDBASER_WAWB \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WAWB) +#define GICR_PENDBASER_RAWAWT \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RAWAWT) +#define GICR_PENDBASER_RAWAWB \ + GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RAWAWB) + +#define GICR_PENDBASER_PTZ BIT_ULL(62) + +#define ITS_MAX_LPI_NRBITS 16 /* 64K LPIs */ + +#define GICD_TYPER_ID_BITS(typer) ((((typer) >> 19) & 0x1f) + 1) +#define GICD_TYPER_NUM_LPIS(typer) ((((typer) >> 11) & 0x1f) + 1) +#define GICD_TYPER_IRQS(typer) ((((typer) & 0x1f) + 1) * 32) + +/* Message based interrupts support */ +#define GICD_TYPER_MBIS BIT(16) +/* LPI support */ +#define GICD_TYPER_LPIS BIT(17) +#define GICD_TYPER_RSS BIT(26) + +#define GIC_REDISTRIBUTOR_OFFSET 0x20000 + +#ifdef CONFIG_GIC_V3_ITS +int gic_lpi_tables_init(u64 base, u32 max_redist); +#else +int gic_lpi_tables_init(u64 base, u32 max_redist) +{ + return 0; +} +#endif /* CONFIG_GIC_V3_ITS */ + +#endif /* __GIC_V3_H__ */ |