From e1699c7bc84d8ae9da6cbe4407c14059007aa223 Mon Sep 17 00:00:00 2001 From: Mark Cave-Ayland Date: Sun, 22 Dec 2024 12:59:41 +0000 Subject: [PATCH] next-cube: remove overlap between next.dma and next.mmio memory regions MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Change the start of the next.mmio memory region so that it follows on directly after the next.dma memory region. Increase the address offsets in next_mmio_read() and next_mmio_write(), and reduce the size of the next.mmio memory region accordingly. Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Thomas Huth Message-ID: <20241222130012.1013374-3-mark.cave-ayland@ilande.co.uk> Signed-off-by: Thomas Huth --- hw/m68k/next-cube.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/hw/m68k/next-cube.c b/hw/m68k/next-cube.c index 243d9e7e66..5f07791707 100644 --- a/hw/m68k/next-cube.c +++ b/hw/m68k/next-cube.c @@ -266,23 +266,23 @@ static uint64_t next_mmio_read(void *opaque, hwaddr addr, unsigned size) uint64_t val; switch (addr) { - case 0x7000: + case 0x2000: /* 0x2007000 */ /* DPRINTF("Read INT status: %x\n", s->int_status); */ val = s->int_status; break; - case 0x7800: + case 0x2800: /* 0x2007800 */ DPRINTF("MMIO Read INT mask: %x\n", s->int_mask); val = s->int_mask; break; - case 0xc000 ... 0xc003: - val = extract32(s->scr1, (4 - (addr - 0xc000) - size) << 3, + case 0x7000 ... 0x7003: /* 0x200c000 */ + val = extract32(s->scr1, (4 - (addr - 0x7000) - size) << 3, size << 3); break; - case 0xd000 ... 0xd003: - val = extract32(s->scr2, (4 - (addr - 0xd000) - size) << 3, + case 0x8000 ... 0x8003: /* 0x200d000 */ + val = extract32(s->scr2, (4 - (addr - 0x8000) - size) << 3, size << 3); break; @@ -301,25 +301,25 @@ static void next_mmio_write(void *opaque, hwaddr addr, uint64_t val, NeXTPC *s = NEXT_PC(opaque); switch (addr) { - case 0x7000: + case 0x2000: /* 0x2007000 */ DPRINTF("INT Status old: %x new: %x\n", s->int_status, (unsigned int)val); s->int_status = val; break; - case 0x7800: + case 0x2800: /* 0x2007800 */ DPRINTF("INT Mask old: %x new: %x\n", s->int_mask, (unsigned int)val); s->int_mask = val; break; - case 0xc000 ... 0xc003: + case 0x7000 ... 0x7003: /* 0x200c000 */ DPRINTF("SCR1 Write: %x\n", (unsigned int)val); - s->scr1 = deposit32(s->scr1, (4 - (addr - 0xc000) - size) << 3, + s->scr1 = deposit32(s->scr1, (4 - (addr - 0x7000) - size) << 3, size << 3, val); break; - case 0xd000 ... 0xd003: - s->scr2 = deposit32(s->scr2, (4 - (addr - 0xd000) - size) << 3, + case 0x8000 ... 0x8003: /* 0x200d000 */ + s->scr2 = deposit32(s->scr2, (4 - (addr - 0x8000) - size) << 3, size << 3, val); next_scr2_led_update(s); next_scr2_rtc_update(s); @@ -897,7 +897,7 @@ static void next_pc_realize(DeviceState *dev, Error **errp) qdev_init_gpio_in(dev, next_irq, NEXT_NUM_IRQS); memory_region_init_io(&s->mmiomem, OBJECT(s), &next_mmio_ops, s, - "next.mmio", 0xd0000); + "next.mmio", 0x9000); memory_region_init_io(&s->scrmem, OBJECT(s), &next_scr_ops, s, "next.scr", 0x20000); sysbus_init_mmio(sbd, &s->mmiomem); @@ -999,7 +999,7 @@ static void next_cube_init(MachineState *machine) sysbus_create_simple(TYPE_NEXTFB, 0x0B000000, NULL); /* MMIO */ - sysbus_mmio_map(SYS_BUS_DEVICE(pcdev), 0, 0x02000000); + sysbus_mmio_map(SYS_BUS_DEVICE(pcdev), 0, 0x02005000); /* BMAP IO - acts as a catch-all for now */ sysbus_mmio_map(SYS_BUS_DEVICE(pcdev), 1, 0x02100000); -- 2.30.2