| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 2000, 07 MIPS Technologies, Inc. |
| * Copyright (C) 2016 Imagination Technologies |
| * |
| */ |
| |
| #ifndef MIPS_GIC_H |
| #define MIPS_GIC_H |
| |
| #include "qemu/units.h" |
| #include "hw/timer/mips_gictimer.h" |
| #include "hw/sysbus.h" |
| #include "cpu.h" |
| /* |
| * GIC Specific definitions |
| */ |
| |
| /* The MIPS default location */ |
| #define GIC_BASE_ADDR 0x1bdc0000ULL |
| #define GIC_ADDRSPACE_SZ (128 * KiB) |
| |
| /* Constants */ |
| #define GIC_POL_POS 1 |
| #define GIC_POL_NEG 0 |
| #define GIC_TRIG_EDGE 1 |
| #define GIC_TRIG_LEVEL 0 |
| |
| #define MSK(n) ((1ULL << (n)) - 1) |
| |
| /* GIC Address Space */ |
| #define SHARED_SECTION_OFS 0x0000 |
| #define SHARED_SECTION_SIZE 0x8000 |
| #define VP_LOCAL_SECTION_OFS 0x8000 |
| #define VP_LOCAL_SECTION_SIZE 0x4000 |
| #define VP_OTHER_SECTION_OFS 0xc000 |
| #define VP_OTHER_SECTION_SIZE 0x4000 |
| #define USM_VISIBLE_SECTION_OFS 0x10000 |
| #define USM_VISIBLE_SECTION_SIZE 0x10000 |
| |
| /* Register Map for Shared Section */ |
| |
| #define GIC_SH_CONFIG_OFS 0x0000 |
| |
| /* Shared Global Counter */ |
| #define GIC_SH_COUNTERLO_OFS 0x0010 |
| #define GIC_SH_COUNTERHI_OFS 0x0014 |
| #define GIC_SH_REVISIONID_OFS 0x0020 |
| |
| /* Set/Clear corresponding bit in Edge Detect Register */ |
| #define GIC_SH_WEDGE_OFS 0x0280 |
| |
| /* Reset Mask - Disables Interrupt */ |
| #define GIC_SH_RMASK_OFS 0x0300 |
| #define GIC_SH_RMASK_LAST_OFS 0x031c |
| |
| /* Set Mask (WO) - Enables Interrupt */ |
| #define GIC_SH_SMASK_OFS 0x0380 |
| #define GIC_SH_SMASK_LAST_OFS 0x039c |
| |
| /* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */ |
| #define GIC_SH_MASK_OFS 0x0400 |
| #define GIC_SH_MASK_LAST_OFS 0x041c |
| |
| /* Pending Global Interrupts (RO) */ |
| #define GIC_SH_PEND_OFS 0x0480 |
| #define GIC_SH_PEND_LAST_OFS 0x049c |
| |
| #define GIC_SH_MAP0_PIN_OFS 0x0500 |
| #define GIC_SH_MAP255_PIN_OFS 0x08fc |
| |
| #define GIC_SH_MAP0_VP_OFS 0x2000 |
| #define GIC_SH_MAP255_VP_LAST_OFS 0x3fe4 |
| |
| /* Register Map for Local Section */ |
| #define GIC_VP_CTL_OFS 0x0000 |
| #define GIC_VP_PEND_OFS 0x0004 |
| #define GIC_VP_MASK_OFS 0x0008 |
| #define GIC_VP_RMASK_OFS 0x000c |
| #define GIC_VP_SMASK_OFS 0x0010 |
| #define GIC_VP_WD_MAP_OFS 0x0040 |
| #define GIC_VP_COMPARE_MAP_OFS 0x0044 |
| #define GIC_VP_TIMER_MAP_OFS 0x0048 |
| #define GIC_VP_FDC_MAP_OFS 0x004c |
| #define GIC_VP_PERFCTR_MAP_OFS 0x0050 |
| #define GIC_VP_SWINT0_MAP_OFS 0x0054 |
| #define GIC_VP_SWINT1_MAP_OFS 0x0058 |
| #define GIC_VP_OTHER_ADDR_OFS 0x0080 |
| #define GIC_VP_IDENT_OFS 0x0088 |
| #define GIC_VP_WD_CONFIG0_OFS 0x0090 |
| #define GIC_VP_WD_COUNT0_OFS 0x0094 |
| #define GIC_VP_WD_INITIAL0_OFS 0x0098 |
| #define GIC_VP_COMPARE_LO_OFS 0x00a0 |
| #define GIC_VP_COMPARE_HI_OFS 0x00a4 |
| #define GIC_VL_BRK_GROUP 0x3080 |
| |
| /* User-Mode Visible Section Register */ |
| /* Read-only alias for GIC Shared CounterLo */ |
| #define GIC_USER_MODE_COUNTERLO 0x0000 |
| /* Read-only alias for GIC Shared CounterHi */ |
| #define GIC_USER_MODE_COUNTERHI 0x0004 |
| |
| /* Masks */ |
| #define GIC_SH_CONFIG_COUNTSTOP_SHF 28 |
| #define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF) |
| #define GIC_SH_CONFIG_COUNTBITS_SHF 24 |
| #define GIC_SH_CONFIG_COUNTBITS_MSK (MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF) |
| #define GIC_SH_CONFIG_NUMINTRS_SHF 16 |
| #define GIC_SH_CONFIG_NUMINTRS_MSK (MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF) |
| #define GIC_SH_CONFIG_PVPS_SHF 0 |
| #define GIC_SH_CONFIG_PVPS_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPS_SHF) |
| |
| #define GIC_SH_WEDGE_RW_SHF 31 |
| #define GIC_SH_WEDGE_RW_MSK (MSK(1) << GIC_SH_WEDGE_RW_SHF) |
| |
| #define GIC_MAP_TO_PIN_SHF 31 |
| #define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF) |
| #define GIC_MAP_TO_NMI_SHF 30 |
| #define GIC_MAP_TO_NMI_MSK (MSK(1) << GIC_MAP_TO_NMI_SHF) |
| #define GIC_MAP_TO_YQ_SHF 29 |
| #define GIC_MAP_TO_YQ_MSK (MSK(1) << GIC_MAP_TO_YQ_SHF) |
| #define GIC_MAP_SHF 0 |
| #define GIC_MAP_MSK (MSK(6) << GIC_MAP_SHF) |
| #define GIC_MAP_TO_PIN_REG_MSK \ |
| (GIC_MAP_TO_PIN_MSK | GIC_MAP_TO_NMI_MSK | GIC_MAP_TO_YQ_MSK | GIC_MAP_MSK) |
| |
| /* GIC_VP_CTL Masks */ |
| #define GIC_VP_CTL_FDC_RTBL_SHF 4 |
| #define GIC_VP_CTL_FDC_RTBL_MSK (MSK(1) << GIC_VP_CTL_FDC_RTBL_SHF) |
| #define GIC_VP_CTL_SWINT_RTBL_SHF 3 |
| #define GIC_VP_CTL_SWINT_RTBL_MSK (MSK(1) << GIC_VP_CTL_SWINT_RTBL_SHF) |
| #define GIC_VP_CTL_PERFCNT_RTBL_SHF 2 |
| #define GIC_VP_CTL_PERFCNT_RTBL_MSK (MSK(1) << GIC_VP_CTL_PERFCNT_RTBL_SHF) |
| #define GIC_VP_CTL_TIMER_RTBL_SHF 1 |
| #define GIC_VP_CTL_TIMER_RTBL_MSK (MSK(1) << GIC_VP_CTL_TIMER_RTBL_SHF) |
| #define GIC_VP_CTL_EIC_MODE_SHF 0 |
| #define GIC_VP_CTL_EIC_MODE_MSK (MSK(1) << GIC_VP_CTL_EIC_MODE_SHF) |
| |
| /* GIC_VP_MASK Masks */ |
| #define GIC_VP_MASK_FDC_SHF 6 |
| #define GIC_VP_MASK_FDC_MSK (MSK(1) << GIC_VP_MASK_FDC_SHF) |
| #define GIC_VP_MASK_SWINT1_SHF 5 |
| #define GIC_VP_MASK_SWINT1_MSK (MSK(1) << GIC_VP_MASK_SWINT1_SHF) |
| #define GIC_VP_MASK_SWINT0_SHF 4 |
| #define GIC_VP_MASK_SWINT0_MSK (MSK(1) << GIC_VP_MASK_SWINT0_SHF) |
| #define GIC_VP_MASK_PERFCNT_SHF 3 |
| #define GIC_VP_MASK_PERFCNT_MSK (MSK(1) << GIC_VP_MASK_PERFCNT_SHF) |
| #define GIC_VP_MASK_TIMER_SHF 2 |
| #define GIC_VP_MASK_TIMER_MSK (MSK(1) << GIC_VP_MASK_TIMER_SHF) |
| #define GIC_VP_MASK_CMP_SHF 1 |
| #define GIC_VP_MASK_CMP_MSK (MSK(1) << GIC_VP_MASK_CMP_SHF) |
| #define GIC_VP_MASK_WD_SHF 0 |
| #define GIC_VP_MASK_WD_MSK (MSK(1) << GIC_VP_MASK_WD_SHF) |
| #define GIC_VP_SET_RESET_MSK (MSK(7) << GIC_VP_MASK_WD_SHF) |
| |
| #define GIC_CPU_INT_MAX 5 /* Core Interrupt 7 */ |
| #define GIC_CPU_PIN_OFFSET 2 |
| |
| /* Local GIC interrupts. */ |
| #define GIC_NUM_LOCAL_INTRS 7 |
| #define GIC_LOCAL_INT_FDC 6 /* CPU fast debug channel */ |
| #define GIC_LOCAL_INT_SWINT1 5 /* CPU software interrupt 1 */ |
| #define GIC_LOCAL_INT_SWINT0 4 /* CPU software interrupt 0 */ |
| #define GIC_LOCAL_INT_PERFCTR 3 /* CPU performance counter */ |
| #define GIC_LOCAL_INT_TIMER 2 /* CPU timer interrupt */ |
| #define GIC_LOCAL_INT_COMPARE 1 /* GIC count and compare timer */ |
| #define GIC_LOCAL_INT_WD 0 /* GIC watchdog */ |
| |
| #define TYPE_MIPS_GIC "mips-gic" |
| #define MIPS_GIC(obj) OBJECT_CHECK(MIPSGICState, (obj), TYPE_MIPS_GIC) |
| |
| /* Support up to 32 VPs and 256 IRQs */ |
| #define GIC_MAX_VPS 32 |
| #define GIC_MAX_INTRS 256 |
| |
| typedef struct MIPSGICState MIPSGICState; |
| typedef struct MIPSGICIRQState MIPSGICIRQState; |
| typedef struct MIPSGICVPState MIPSGICVPState; |
| |
| struct MIPSGICIRQState { |
| uint8_t enabled; |
| uint8_t pending; |
| uint32_t map_pin; |
| int32_t map_vp; |
| qemu_irq irq; |
| }; |
| |
| struct MIPSGICVPState { |
| uint32_t ctl; |
| uint32_t pend; |
| uint32_t mask; |
| uint32_t compare_map; |
| uint32_t other_addr; |
| CPUMIPSState *env; |
| }; |
| |
| struct MIPSGICState { |
| SysBusDevice parent_obj; |
| MemoryRegion mr; |
| |
| /* Shared Section Registers */ |
| uint32_t sh_config; |
| MIPSGICIRQState *irq_state; |
| |
| /* VP Local/Other Section Registers */ |
| MIPSGICVPState *vps; |
| |
| /* GIC VP Timer */ |
| MIPSGICTimerState *gic_timer; |
| |
| int32_t num_vps; |
| int32_t num_irq; |
| }; |
| |
| #endif /* MIPS_GIC_H */ |
