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qemu/include/hw/intc/riscv_aclint.h

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SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
/*
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
* RISC-V ACLINT (Advanced Core Local Interruptor) interface
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
*
* Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu
* Copyright (c) 2017 SiFive, Inc.
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
* Copyright (c) 2021 Western Digital Corporation or its affiliates.
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
#ifndef HW_RISCV_ACLINT_H
#define HW_RISCV_ACLINT_H
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
include: Make headers more self-contained Back in 2016, we discussed[1] rules for headers, and these were generally liked: 1. Have a carefully curated header that's included everywhere first. We got that already thanks to Peter: osdep.h. 2. Headers should normally include everything they need beyond osdep.h. If exceptions are needed for some reason, they must be documented in the header. If all that's needed from a header is typedefs, put those into qemu/typedefs.h instead of including the header. 3. Cyclic inclusion is forbidden. This patch gets include/ closer to obeying 2. It's actually extracted from my "[RFC] Baby steps towards saner headers" series[2], which demonstrates a possible path towards checking 2 automatically. It passes the RFC test there. [1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html [2] Message-Id: <20190711122827.18970-1-armbru@redhat.com> https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-2-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-12 08:23:31 +03:00
#include "hw/sysbus.h"
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
#define TYPE_RISCV_ACLINT_MTIMER "riscv.aclint.mtimer"
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
#define RISCV_ACLINT_MTIMER(obj) \
OBJECT_CHECK(RISCVAclintMTimerState, (obj), TYPE_RISCV_ACLINT_MTIMER)
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
typedef struct RISCVAclintMTimerState {
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion mmio;
hw/riscv: Allow creating multiple instances of CLINT We extend CLINT emulation to allow multiple instances of CLINT in a QEMU RISC-V machine. To achieve this, we remove first HART id zero assumption from CLINT emulation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Message-Id: <20200616032229.766089-2-anup.patel@wdc.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-05-14 13:21:31 +03:00
uint32_t hartid_base;
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
uint32_t num_harts;
uint32_t timecmp_base;
uint32_t time_base;
uint32_t aperture_size;
hw/riscv: clint: Avoid using hard-coded timebase frequency At present the CLINT timestamp is using a hard-coded timebase frequency value SIFIVE_CLINT_TIMEBASE_FREQ. This might not be true for all boards. Add a new 'timebase-freq' property to the CLINT device, and update various functions to accept this as a parameter. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <1598924352-89526-16-git-send-email-bmeng.cn@gmail.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-01 04:39:10 +03:00
uint32_t timebase_freq;
hw/intc: sifive_clint: Use RISC-V CPU GPIO lines Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V CPU GPIO lines to set the timer and soft MIP bits. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com> Message-id: 946e1ef5e268b24084c7ddad84c146de62a56736.1630301632.git.alistair.francis@wdc.com
2021-08-30 08:34:36 +03:00
qemu_irq *timer_irqs;
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
} RISCVAclintMTimerState;
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
DeviceState *riscv_aclint_mtimer_create(hwaddr addr, hwaddr size,
uint32_t hartid_base, uint32_t num_harts,
hw/riscv: clint: Avoid using hard-coded timebase frequency At present the CLINT timestamp is using a hard-coded timebase frequency value SIFIVE_CLINT_TIMEBASE_FREQ. This might not be true for all boards. Add a new 'timebase-freq' property to the CLINT device, and update various functions to accept this as a parameter. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <1598924352-89526-16-git-send-email-bmeng.cn@gmail.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-01 04:39:10 +03:00
uint32_t timecmp_base, uint32_t time_base, uint32_t timebase_freq,
bool provide_rdtime);
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
#define TYPE_RISCV_ACLINT_SWI "riscv.aclint.swi"
#define RISCV_ACLINT_SWI(obj) \
OBJECT_CHECK(RISCVAclintSwiState, (obj), TYPE_RISCV_ACLINT_SWI)
typedef struct RISCVAclintSwiState {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion mmio;
uint32_t hartid_base;
uint32_t num_harts;
uint32_t sswi;
qemu_irq *soft_irqs;
} RISCVAclintSwiState;
DeviceState *riscv_aclint_swi_create(hwaddr addr, uint32_t hartid_base,
uint32_t num_harts, bool sswi);
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
RISC-V: Replace hardcoded constants with enum values The RISC-V device-tree code has a number of hard-coded constants and this change moves them into header enums. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-03-03 04:30:07 +03:00
enum {
hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT The RISC-V ACLINT is more modular and backward compatible with original SiFive CLINT so instead of duplicating the original SiFive CLINT implementation we upgrade the current SiFive CLINT implementation to RISC-V ACLINT implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Message-id: 20210831110603.338681-3-anup.patel@wdc.com Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-08-31 14:06:01 +03:00
RISCV_ACLINT_DEFAULT_MTIMECMP = 0x0,
RISCV_ACLINT_DEFAULT_MTIME = 0x7ff8,
RISCV_ACLINT_DEFAULT_MTIMER_SIZE = 0x8000,
RISCV_ACLINT_DEFAULT_TIMEBASE_FREQ = 10000000,
RISCV_ACLINT_MAX_HARTS = 4095,
RISCV_ACLINT_SWI_SIZE = 0x4000
RISC-V: Replace hardcoded constants with enum values The RISC-V device-tree code has a number of hard-coded constants and this change moves them into header enums. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
2018-03-03 04:30:07 +03:00
};
SiFive RISC-V CLINT Block The CLINT (Core Local Interruptor) device provides real-time clock, timer and interprocessor interrupts based on SiFive's CLINT specification. Acked-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu> Signed-off-by: Stefan O'Rear <sorear2@gmail.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Signed-off-by: Michael Clark <mjc@sifive.com>
2018-03-02 15:31:12 +03:00
#endif
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