From dea96332327f2651f726244cc5bb41c4f9350f8b Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Mon, 21 Dec 2020 19:05:34 +0800 Subject: [PATCH] hw/intc: Rework Loongson LIOINTC MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit As suggested by Philippe Mathieu-Daudé, rework Loongson's liointc: 1, Move macro definitions to loongson_liointc.h; 2, Remove magic values and use macros instead; 3, Replace dead D() code by trace events. Suggested-by: Philippe Mathieu-Daudé Signed-off-by: Huacai Chen Tested-by: Philippe Mathieu-Daudé Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20201221110538.3186646-2-chenhuacai@kernel.org> Signed-off-by: Philippe Mathieu-Daudé --- hw/intc/loongson_liointc.c | 36 ++++++++++++++++-------------------- include/hw/intc/loongson_liointc.h | 22 ++++++++++++++++++++++ 2 files changed, 38 insertions(+), 20 deletions(-) create mode 100644 include/hw/intc/loongson_liointc.h diff --git a/hw/intc/loongson_liointc.c b/hw/intc/loongson_liointc.c index fbbfb57ee9..f823d484e0 100644 --- a/hw/intc/loongson_liointc.c +++ b/hw/intc/loongson_liointc.c @@ -1,6 +1,7 @@ /* * QEMU Loongson Local I/O interrupt controler. * + * Copyright (c) 2020 Huacai Chen * Copyright (c) 2020 Jiaxun Yang * * This program is free software: you can redistribute it and/or modify @@ -19,13 +20,11 @@ */ #include "qemu/osdep.h" -#include "hw/sysbus.h" #include "qemu/module.h" +#include "qemu/log.h" #include "hw/irq.h" #include "hw/qdev-properties.h" -#include "qom/object.h" - -#define D(x) +#include "hw/intc/loongson_liointc.h" #define NUM_IRQS 32 @@ -40,13 +39,10 @@ #define R_IEN 0x24 #define R_IEN_SET 0x28 #define R_IEN_CLR 0x2c -#define R_PERCORE_ISR(x) (0x40 + 0x8 * x) +#define R_ISR_SIZE 0x8 +#define R_START 0x40 #define R_END 0x64 -#define TYPE_LOONGSON_LIOINTC "loongson.liointc" -DECLARE_INSTANCE_CHECKER(struct loongson_liointc, LOONGSON_LIOINTC, - TYPE_LOONGSON_LIOINTC) - struct loongson_liointc { SysBusDevice parent_obj; @@ -123,14 +119,13 @@ liointc_read(void *opaque, hwaddr addr, unsigned int size) goto out; } - /* Rest is 4 byte */ + /* Rest are 4 bytes */ if (size != 4 || (addr % 4)) { goto out; } - if (addr >= R_PERCORE_ISR(0) && - addr < R_PERCORE_ISR(NUM_CORES)) { - int core = (addr - R_PERCORE_ISR(0)) / 8; + if (addr >= R_START && addr < R_END) { + int core = (addr - R_START) / R_ISR_SIZE; r = p->per_core_isr[core]; goto out; } @@ -147,7 +142,8 @@ liointc_read(void *opaque, hwaddr addr, unsigned int size) } out: - D(qemu_log("%s: size=%d addr=%lx val=%x\n", __func__, size, addr, r)); + qemu_log_mask(CPU_LOG_INT, "%s: size=%d, addr=%"HWADDR_PRIx", val=%x\n", + __func__, size, addr, r); return r; } @@ -158,7 +154,8 @@ liointc_write(void *opaque, hwaddr addr, struct loongson_liointc *p = opaque; uint32_t value = val64; - D(qemu_log("%s: size=%d, addr=%lx val=%x\n", __func__, size, addr, value)); + qemu_log_mask(CPU_LOG_INT, "%s: size=%d, addr=%"HWADDR_PRIx", val=%x\n", + __func__, size, addr, value); /* Mapper is 1 byte */ if (size == 1 && addr < R_MAPPER_END) { @@ -166,14 +163,13 @@ liointc_write(void *opaque, hwaddr addr, goto out; } - /* Rest is 4 byte */ + /* Rest are 4 bytes */ if (size != 4 || (addr % 4)) { goto out; } - if (addr >= R_PERCORE_ISR(0) && - addr < R_PERCORE_ISR(NUM_CORES)) { - int core = (addr - R_PERCORE_ISR(0)) / 8; + if (addr >= R_START && addr < R_END) { + int core = (addr - R_START) / R_ISR_SIZE; p->per_core_isr[core] = value; goto out; } @@ -224,7 +220,7 @@ static void loongson_liointc_init(Object *obj) } memory_region_init_io(&p->mmio, obj, &pic_ops, p, - "loongson.liointc", R_END); + TYPE_LOONGSON_LIOINTC, R_END); sysbus_init_mmio(SYS_BUS_DEVICE(obj), &p->mmio); } diff --git a/include/hw/intc/loongson_liointc.h b/include/hw/intc/loongson_liointc.h new file mode 100644 index 0000000000..848e65eb35 --- /dev/null +++ b/include/hw/intc/loongson_liointc.h @@ -0,0 +1,22 @@ +/* + * 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) 2020 Huacai Chen + * Copyright (c) 2020 Jiaxun Yang + * + */ + +#ifndef LOONGSON_LIOINTC_H +#define LOONGSON_LIOINTC_H + +#include "qemu/units.h" +#include "hw/sysbus.h" +#include "qom/object.h" + +#define TYPE_LOONGSON_LIOINTC "loongson.liointc" +DECLARE_INSTANCE_CHECKER(struct loongson_liointc, LOONGSON_LIOINTC, + TYPE_LOONGSON_LIOINTC) + +#endif /* LOONGSON_LIOINTC_H */ -- 2.11.4.GIT