[mirror_qemu.git] / hw / sun4m.c

/*
 * QEMU Sun4m System Emulator
 * 
 * Copyright (c) 2003-2005 Fabrice Bellard
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include "vl.h"

#define KERNEL_LOAD_ADDR     0x00004000
#define CMDLINE_ADDR         0x007ff000
#define INITRD_LOAD_ADDR     0x00800000
#define PROM_ADDR	     0xffd00000
#define PROM_FILENAMEB	     "proll.bin"
#define PROM_FILENAMEE	     "proll.elf"
#define PHYS_JJ_EEPROM	0x71200000	/* m48t08 */
#define PHYS_JJ_IDPROM_OFF	0x1FD8
#define PHYS_JJ_EEPROM_SIZE	0x2000
// IRQs are not PIL ones, but master interrupt controller register
// bits
#define PHYS_JJ_IOMMU	0x10000000	/* I/O MMU */
#define PHYS_JJ_TCX_FB	0x50000000	/* TCX frame buffer */
#define PHYS_JJ_SLAVIO	0x70000000	/* Slavio base */
#define PHYS_JJ_ESPDMA  0x78400000      /* ESP DMA controller */
#define PHYS_JJ_ESP     0x78800000      /* ESP SCSI */
#define PHYS_JJ_ESP_IRQ    18
#define PHYS_JJ_LEDMA   0x78400010      /* Lance DMA controller */
#define PHYS_JJ_LE      0x78C00000      /* Lance ethernet */
#define PHYS_JJ_LE_IRQ     16
#define PHYS_JJ_CLOCK	0x71D00000      /* Per-CPU timer/counter, L14 */
#define PHYS_JJ_CLOCK_IRQ  7
#define PHYS_JJ_CLOCK1	0x71D10000      /* System timer/counter, L10 */
#define PHYS_JJ_CLOCK1_IRQ 19
#define PHYS_JJ_INTR0	0x71E00000	/* Per-CPU interrupt control registers */
#define PHYS_JJ_INTR_G	0x71E10000	/* Master interrupt control registers */
#define PHYS_JJ_MS_KBD	0x71000000	/* Mouse and keyboard */
#define PHYS_JJ_MS_KBD_IRQ    14
#define PHYS_JJ_SER	0x71100000	/* Serial */
#define PHYS_JJ_SER_IRQ    15
#define PHYS_JJ_FDC	0x71400000	/* Floppy */
#define PHYS_JJ_FLOPPY_IRQ 22
#define PHYS_JJ_ME_IRQ 30		/* Module error, power fail */
#define MAX_CPUS 16

/* TSC handling */

uint64_t cpu_get_tsc()
{
    return qemu_get_clock(vm_clock);
}

int DMA_get_channel_mode (int nchan)
{
    return 0;
}
int DMA_read_memory (int nchan, void *buf, int pos, int size)
{
    return 0;
}
int DMA_write_memory (int nchan, void *buf, int pos, int size)
{
    return 0;
}
void DMA_hold_DREQ (int nchan) {}
void DMA_release_DREQ (int nchan) {}
void DMA_schedule(int nchan) {}
void DMA_run (void) {}
void DMA_init (int high_page_enable) {}
void DMA_register_channel (int nchan,
                           DMA_transfer_handler transfer_handler,
                           void *opaque)
{
}

static void nvram_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value)
{
    m48t59_write(nvram, addr++, (value >> 8) & 0xff);
    m48t59_write(nvram, addr++, value & 0xff);
}

static void nvram_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value)
{
    m48t59_write(nvram, addr++, value >> 24);
    m48t59_write(nvram, addr++, (value >> 16) & 0xff);
    m48t59_write(nvram, addr++, (value >> 8) & 0xff);
    m48t59_write(nvram, addr++, value & 0xff);
}

static void nvram_set_string (m48t59_t *nvram, uint32_t addr,
                       const unsigned char *str, uint32_t max)
{
    unsigned int i;

    for (i = 0; i < max && str[i] != '\0'; i++) {
        m48t59_write(nvram, addr + i, str[i]);
    }
    m48t59_write(nvram, addr + max - 1, '\0');
}

static m48t59_t *nvram;

extern int nographic;

static void nvram_init(m48t59_t *nvram, uint8_t *macaddr, const char *cmdline,
		       int boot_device, uint32_t RAM_size,
		       uint32_t kernel_size,
		       int width, int height, int depth)
{
    unsigned char tmp = 0;
    int i, j;

    // Try to match PPC NVRAM
    nvram_set_string(nvram, 0x00, "QEMU_BIOS", 16);
    nvram_set_lword(nvram,  0x10, 0x00000001); /* structure v1 */
    // NVRAM_size, arch not applicable
    m48t59_write(nvram, 0x2D, smp_cpus & 0xff);
    m48t59_write(nvram, 0x2E, 0);
    m48t59_write(nvram, 0x2F, nographic & 0xff);
    nvram_set_lword(nvram,  0x30, RAM_size);
    m48t59_write(nvram, 0x34, boot_device & 0xff);
    nvram_set_lword(nvram,  0x38, KERNEL_LOAD_ADDR);
    nvram_set_lword(nvram,  0x3C, kernel_size);
    if (cmdline) {
	strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
	nvram_set_lword(nvram,  0x40, CMDLINE_ADDR);
        nvram_set_lword(nvram,  0x44, strlen(cmdline));
    }
    // initrd_image, initrd_size passed differently
    nvram_set_word(nvram,   0x54, width);
    nvram_set_word(nvram,   0x56, height);
    nvram_set_word(nvram,   0x58, depth);

    // Sun4m specific use
    i = 0x1fd8;
    m48t59_write(nvram, i++, 0x01);
    m48t59_write(nvram, i++, 0x80); /* Sun4m OBP */
    j = 0;
    m48t59_write(nvram, i++, macaddr[j++]);
    m48t59_write(nvram, i++, macaddr[j++]);
    m48t59_write(nvram, i++, macaddr[j++]);
    m48t59_write(nvram, i++, macaddr[j++]);
    m48t59_write(nvram, i++, macaddr[j++]);
    m48t59_write(nvram, i, macaddr[j]);

    /* Calculate checksum */
    for (i = 0x1fd8; i < 0x1fe7; i++) {
	tmp ^= m48t59_read(nvram, i);
    }
    m48t59_write(nvram, 0x1fe7, tmp);
}

static void *slavio_intctl;

void pic_info()
{
    slavio_pic_info(slavio_intctl);
}

void irq_info()
{
    slavio_irq_info(slavio_intctl);
}

void pic_set_irq(int irq, int level)
{
    slavio_pic_set_irq(slavio_intctl, irq, level);
}

void pic_set_irq_cpu(int irq, int level, unsigned int cpu)
{
    slavio_pic_set_irq_cpu(slavio_intctl, irq, level, cpu);
}

static void *tcx;

void vga_update_display()
{
    tcx_update_display(tcx);
}

void vga_invalidate_display()
{
    tcx_invalidate_display(tcx);
}

void vga_screen_dump(const char *filename)
{
    tcx_screen_dump(tcx, filename);
}

static void *iommu;

uint32_t iommu_translate(uint32_t addr)
{
    return iommu_translate_local(iommu, addr);
}

static void *slavio_misc;

void qemu_system_powerdown(void)
{
    slavio_set_power_fail(slavio_misc, 1);
}

static void main_cpu_reset(void *opaque)
{
    CPUState *env = opaque;
    cpu_reset(env);
}

/* Sun4m hardware initialisation */
static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
                       DisplayState *ds, const char **fd_filename, int snapshot,
                       const char *kernel_filename, const char *kernel_cmdline,
                       const char *initrd_filename)
{
    CPUState *env, *envs[MAX_CPUS];
    char buf[1024];
    int ret, linux_boot;
    unsigned int i;
    long vram_size = 0x100000, prom_offset, initrd_size, kernel_size;

    linux_boot = (kernel_filename != NULL);

    /* init CPUs */
    for(i = 0; i < smp_cpus; i++) {
        env = cpu_init();
        envs[i] = env;
        if (i != 0)
            env->halted = 1;
        register_savevm("cpu", i, 3, cpu_save, cpu_load, env);
        qemu_register_reset(main_cpu_reset, env);
    }
    /* allocate RAM */
    cpu_register_physical_memory(0, ram_size, 0);

    iommu = iommu_init(PHYS_JJ_IOMMU);
    slavio_intctl = slavio_intctl_init(PHYS_JJ_INTR0, PHYS_JJ_INTR_G);
    for(i = 0; i < smp_cpus; i++) {
        slavio_intctl_set_cpu(slavio_intctl, i, envs[i]);
    }

    tcx = tcx_init(ds, PHYS_JJ_TCX_FB, phys_ram_base + ram_size, ram_size, vram_size, graphic_width, graphic_height);
    lance_init(&nd_table[0], PHYS_JJ_LE_IRQ, PHYS_JJ_LE, PHYS_JJ_LEDMA);
    nvram = m48t59_init(0, PHYS_JJ_EEPROM, 0, PHYS_JJ_EEPROM_SIZE, 8);
    for (i = 0; i < MAX_CPUS; i++) {
        slavio_timer_init(PHYS_JJ_CLOCK + i * TARGET_PAGE_SIZE, PHYS_JJ_CLOCK_IRQ, 0, i);
    }
    slavio_timer_init(PHYS_JJ_CLOCK1, PHYS_JJ_CLOCK1_IRQ, 2, (unsigned int)-1);
    slavio_serial_ms_kbd_init(PHYS_JJ_MS_KBD, PHYS_JJ_MS_KBD_IRQ);
    // Slavio TTYA (base+4, Linux ttyS0) is the first Qemu serial device
    // Slavio TTYB (base+0, Linux ttyS1) is the second Qemu serial device
    slavio_serial_init(PHYS_JJ_SER, PHYS_JJ_SER_IRQ, serial_hds[1], serial_hds[0]);
    fdctrl_init(PHYS_JJ_FLOPPY_IRQ, 0, 1, PHYS_JJ_FDC, fd_table);
    esp_init(bs_table, PHYS_JJ_ESP_IRQ, PHYS_JJ_ESP, PHYS_JJ_ESPDMA);
    slavio_misc = slavio_misc_init(PHYS_JJ_SLAVIO, PHYS_JJ_ME_IRQ);

    prom_offset = ram_size + vram_size;

    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
    ret = load_elf(buf, phys_ram_base + prom_offset);
    if (ret < 0) {
	snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
	ret = load_image(buf, phys_ram_base + prom_offset);
    }
    if (ret < 0) {
	fprintf(stderr, "qemu: could not load prom '%s'\n", 
		buf);
	exit(1);
    }
    cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK, 
                                 prom_offset | IO_MEM_ROM);

    kernel_size = 0;
    if (linux_boot) {
        kernel_size = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
        if (kernel_size < 0)
	    kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
	if (kernel_size < 0)
	    kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
        if (kernel_size < 0) {
            fprintf(stderr, "qemu: could not load kernel '%s'\n", 
                    kernel_filename);
	    exit(1);
        }

        /* load initrd */
        initrd_size = 0;
        if (initrd_filename) {
            initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR);
            if (initrd_size < 0) {
                fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", 
                        initrd_filename);
                exit(1);
            }
        }
        if (initrd_size > 0) {
	    for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
		if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i)
		    == 0x48647253) { // HdrS
		    stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
		    stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size);
		    break;
		}
	    }
        }
    }
    nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline, boot_device, ram_size, kernel_size, graphic_width, graphic_height, graphic_depth);
}

QEMUMachine sun4m_machine = {
    "sun4m",
    "Sun4m platform",
    sun4m_init,
};
Commit	Line	Data
420557e8 FB	1	/*
	2	* QEMU Sun4m System Emulator
	3	*
b81b3b10	4	* Copyright (c) 2003-2005 Fabrice Bellard
420557e8 FB	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24	#include "vl.h"
420557e8 FB	25
420557e8 FB	26	#define KERNEL_LOAD_ADDR 0x00004000
b6f479d3	27	#define CMDLINE_ADDR 0x007ff000
713c45fa	28	#define INITRD_LOAD_ADDR 0x00800000
e80cfcfc	29	#define PROM_ADDR 0xffd00000
8d5f07fa FB	30	#define PROM_FILENAMEB "proll.bin"
8d5f07fa FB	31	#define PROM_FILENAMEE "proll.elf"
e80cfcfc	32	#define PHYS_JJ_EEPROM 0x71200000 /* m48t08 */
420557e8 FB	33	#define PHYS_JJ_IDPROM_OFF 0x1FD8
420557e8 FB	34	#define PHYS_JJ_EEPROM_SIZE 0x2000
e80cfcfc FB	35	// IRQs are not PIL ones, but master interrupt controller register
	36	// bits
	37	#define PHYS_JJ_IOMMU 0x10000000 /* I/O MMU */
6f7e9aec	38	#define PHYS_JJ_TCX_FB 0x50000000 /* TCX frame buffer */
3475187d	39	#define PHYS_JJ_SLAVIO 0x70000000 /* Slavio base */
6f7e9aec FB	40	#define PHYS_JJ_ESPDMA 0x78400000 /* ESP DMA controller */
	41	#define PHYS_JJ_ESP 0x78800000 /* ESP SCSI */
	42	#define PHYS_JJ_ESP_IRQ 18
e80cfcfc FB	43	#define PHYS_JJ_LEDMA 0x78400010 /* Lance DMA controller */
	44	#define PHYS_JJ_LE 0x78C00000 /* Lance ethernet */
	45	#define PHYS_JJ_LE_IRQ 16
	46	#define PHYS_JJ_CLOCK 0x71D00000 /* Per-CPU timer/counter, L14 */
	47	#define PHYS_JJ_CLOCK_IRQ 7
	48	#define PHYS_JJ_CLOCK1 0x71D10000 /* System timer/counter, L10 */
	49	#define PHYS_JJ_CLOCK1_IRQ 19
	50	#define PHYS_JJ_INTR0 0x71E00000 /* Per-CPU interrupt control registers */
8d5f07fa	51	#define PHYS_JJ_INTR_G 0x71E10000 /* Master interrupt control registers */
e80cfcfc FB	52	#define PHYS_JJ_MS_KBD 0x71000000 /* Mouse and keyboard */
	53	#define PHYS_JJ_MS_KBD_IRQ 14
	54	#define PHYS_JJ_SER 0x71100000 /* Serial */
	55	#define PHYS_JJ_SER_IRQ 15
e80cfcfc FB	56	#define PHYS_JJ_FDC 0x71400000 /* Floppy */
e80cfcfc FB	57	#define PHYS_JJ_FLOPPY_IRQ 22
3475187d	58	#define PHYS_JJ_ME_IRQ 30 /* Module error, power fail */
ba3c64fb	59	#define MAX_CPUS 16
420557e8 FB	60
	61	/* TSC handling */
	62
	63	uint64_t cpu_get_tsc()
	64	{
	65	return qemu_get_clock(vm_clock);
	66	}
	67
6f7e9aec FB	68	int DMA_get_channel_mode (int nchan)
	69	{
	70	return 0;
	71	}
	72	int DMA_read_memory (int nchan, void *buf, int pos, int size)
	73	{
	74	return 0;
	75	}
	76	int DMA_write_memory (int nchan, void *buf, int pos, int size)
	77	{
	78	return 0;
	79	}
	80	void DMA_hold_DREQ (int nchan) {}
	81	void DMA_release_DREQ (int nchan) {}
	82	void DMA_schedule(int nchan) {}
	83	void DMA_run (void) {}
	84	void DMA_init (int high_page_enable) {}
	85	void DMA_register_channel (int nchan,
	86	DMA_transfer_handler transfer_handler,
	87	void *opaque)
	88	{
	89	}
	90
819385c5	91	static void nvram_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value)
6f7e9aec	92	{
819385c5 FB	93	m48t59_write(nvram, addr++, (value >> 8) & 0xff);
819385c5 FB	94	m48t59_write(nvram, addr++, value & 0xff);
6f7e9aec FB	95	}
6f7e9aec FB	96
819385c5	97	static void nvram_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value)
6f7e9aec	98	{
819385c5 FB	99	m48t59_write(nvram, addr++, value >> 24);
	100	m48t59_write(nvram, addr++, (value >> 16) & 0xff);
	101	m48t59_write(nvram, addr++, (value >> 8) & 0xff);
	102	m48t59_write(nvram, addr++, value & 0xff);
6f7e9aec FB	103	}
6f7e9aec FB	104
819385c5	105	static void nvram_set_string (m48t59_t *nvram, uint32_t addr,
6f7e9aec FB	106	const unsigned char *str, uint32_t max)
	107	{
	108	unsigned int i;
	109
	110	for (i = 0; i < max && str[i] != '\0'; i++) {
819385c5	111	m48t59_write(nvram, addr + i, str[i]);
6f7e9aec	112	}
819385c5	113	m48t59_write(nvram, addr + max - 1, '\0');
6f7e9aec	114	}
420557e8	115
819385c5	116	static m48t59_t *nvram;
420557e8	117
6f7e9aec FB	118	extern int nographic;
6f7e9aec FB	119
819385c5	120	static void nvram_init(m48t59_t nvram, uint8_t macaddr, const char *cmdline,
6f7e9aec FB	121	int boot_device, uint32_t RAM_size,
	122	uint32_t kernel_size,
	123	int width, int height, int depth)
e80cfcfc FB	124	{
	125	unsigned char tmp = 0;
	126	int i, j;
	127
6f7e9aec FB	128	// Try to match PPC NVRAM
	129	nvram_set_string(nvram, 0x00, "QEMU_BIOS", 16);
	130	nvram_set_lword(nvram, 0x10, 0x00000001); /* structure v1 */
	131	// NVRAM_size, arch not applicable
ba3c64fb FB	132	m48t59_write(nvram, 0x2D, smp_cpus & 0xff);
ba3c64fb FB	133	m48t59_write(nvram, 0x2E, 0);
819385c5	134	m48t59_write(nvram, 0x2F, nographic & 0xff);
6f7e9aec	135	nvram_set_lword(nvram, 0x30, RAM_size);
819385c5	136	m48t59_write(nvram, 0x34, boot_device & 0xff);
6f7e9aec FB	137	nvram_set_lword(nvram, 0x38, KERNEL_LOAD_ADDR);
6f7e9aec FB	138	nvram_set_lword(nvram, 0x3C, kernel_size);
b6f479d3	139	if (cmdline) {
b6f479d3	140	strcpy(phys_ram_base + CMDLINE_ADDR, cmdline);
6f7e9aec FB	141	nvram_set_lword(nvram, 0x40, CMDLINE_ADDR);
6f7e9aec FB	142	nvram_set_lword(nvram, 0x44, strlen(cmdline));
b6f479d3	143	}
6f7e9aec FB	144	// initrd_image, initrd_size passed differently
	145	nvram_set_word(nvram, 0x54, width);
	146	nvram_set_word(nvram, 0x56, height);
	147	nvram_set_word(nvram, 0x58, depth);
b6f479d3	148
6f7e9aec	149	// Sun4m specific use
e80cfcfc	150	i = 0x1fd8;
819385c5 FB	151	m48t59_write(nvram, i++, 0x01);
819385c5 FB	152	m48t59_write(nvram, i++, 0x80); /* Sun4m OBP */
e80cfcfc	153	j = 0;
819385c5 FB	154	m48t59_write(nvram, i++, macaddr[j++]);
	155	m48t59_write(nvram, i++, macaddr[j++]);
	156	m48t59_write(nvram, i++, macaddr[j++]);
	157	m48t59_write(nvram, i++, macaddr[j++]);
	158	m48t59_write(nvram, i++, macaddr[j++]);
	159	m48t59_write(nvram, i, macaddr[j]);
e80cfcfc FB	160
	161	/* Calculate checksum */
	162	for (i = 0x1fd8; i < 0x1fe7; i++) {
819385c5	163	tmp ^= m48t59_read(nvram, i);
e80cfcfc	164	}
819385c5	165	m48t59_write(nvram, 0x1fe7, tmp);
e80cfcfc FB	166	}
	167
	168	static void *slavio_intctl;
	169
	170	void pic_info()
	171	{
	172	slavio_pic_info(slavio_intctl);
	173	}
	174
	175	void irq_info()
	176	{
	177	slavio_irq_info(slavio_intctl);
	178	}
	179
	180	void pic_set_irq(int irq, int level)
	181	{
	182	slavio_pic_set_irq(slavio_intctl, irq, level);
	183	}
	184
ba3c64fb FB	185	void pic_set_irq_cpu(int irq, int level, unsigned int cpu)
	186	{
	187	slavio_pic_set_irq_cpu(slavio_intctl, irq, level, cpu);
	188	}
	189
e80cfcfc FB	190	static void *tcx;
	191
	192	void vga_update_display()
	193	{
	194	tcx_update_display(tcx);
	195	}
	196
	197	void vga_invalidate_display()
	198	{
	199	tcx_invalidate_display(tcx);
	200	}
	201
	202	void vga_screen_dump(const char *filename)
	203	{
	204	tcx_screen_dump(tcx, filename);
	205	}
	206
	207	static void *iommu;
	208
	209	uint32_t iommu_translate(uint32_t addr)
	210	{
	211	return iommu_translate_local(iommu, addr);
	212	}
	213
3475187d FB	214	static void *slavio_misc;
	215
	216	void qemu_system_powerdown(void)
	217	{
	218	slavio_set_power_fail(slavio_misc, 1);
	219	}
	220
c68ea704 FB	221	static void main_cpu_reset(void *opaque)
	222	{
	223	CPUState *env = opaque;
	224	cpu_reset(env);
	225	}
	226
420557e8	227	/* Sun4m hardware initialisation */
c0e564d5 FB	228	static void sun4m_init(int ram_size, int vga_ram_size, int boot_device,
	229	DisplayState ds, const char *fd_filename, int snapshot,
	230	const char kernel_filename, const char kernel_cmdline,
	231	const char *initrd_filename)
420557e8	232	{
ba3c64fb	233	CPUState env, envs[MAX_CPUS];
420557e8	234	char buf[1024];
8d5f07fa	235	int ret, linux_boot;
713c45fa	236	unsigned int i;
6f7e9aec	237	long vram_size = 0x100000, prom_offset, initrd_size, kernel_size;
420557e8 FB	238
	239	linux_boot = (kernel_filename != NULL);
	240
ba3c64fb FB	241	/* init CPUs */
	242	for(i = 0; i < smp_cpus; i++) {
	243	env = cpu_init();
	244	envs[i] = env;
	245	if (i != 0)
	246	env->halted = 1;
	247	register_savevm("cpu", i, 3, cpu_save, cpu_load, env);
	248	qemu_register_reset(main_cpu_reset, env);
	249	}
420557e8 FB	250	/* allocate RAM */
420557e8 FB	251	cpu_register_physical_memory(0, ram_size, 0);
420557e8	252
e80cfcfc FB	253	iommu = iommu_init(PHYS_JJ_IOMMU);
e80cfcfc FB	254	slavio_intctl = slavio_intctl_init(PHYS_JJ_INTR0, PHYS_JJ_INTR_G);
ba3c64fb FB	255	for(i = 0; i < smp_cpus; i++) {
	256	slavio_intctl_set_cpu(slavio_intctl, i, envs[i]);
	257	}
	258
6f7e9aec	259	tcx = tcx_init(ds, PHYS_JJ_TCX_FB, phys_ram_base + ram_size, ram_size, vram_size, graphic_width, graphic_height);
8d5f07fa	260	lance_init(&nd_table[0], PHYS_JJ_LE_IRQ, PHYS_JJ_LE, PHYS_JJ_LEDMA);
819385c5	261	nvram = m48t59_init(0, PHYS_JJ_EEPROM, 0, PHYS_JJ_EEPROM_SIZE, 8);
ba3c64fb FB	262	for (i = 0; i < MAX_CPUS; i++) {
	263	slavio_timer_init(PHYS_JJ_CLOCK + i * TARGET_PAGE_SIZE, PHYS_JJ_CLOCK_IRQ, 0, i);
	264	}
	265	slavio_timer_init(PHYS_JJ_CLOCK1, PHYS_JJ_CLOCK1_IRQ, 2, (unsigned int)-1);
e80cfcfc	266	slavio_serial_ms_kbd_init(PHYS_JJ_MS_KBD, PHYS_JJ_MS_KBD_IRQ);
b81b3b10 FB	267	// Slavio TTYA (base+4, Linux ttyS0) is the first Qemu serial device
	268	// Slavio TTYB (base+0, Linux ttyS1) is the second Qemu serial device
	269	slavio_serial_init(PHYS_JJ_SER, PHYS_JJ_SER_IRQ, serial_hds[1], serial_hds[0]);
e80cfcfc	270	fdctrl_init(PHYS_JJ_FLOPPY_IRQ, 0, 1, PHYS_JJ_FDC, fd_table);
6f7e9aec	271	esp_init(bs_table, PHYS_JJ_ESP_IRQ, PHYS_JJ_ESP, PHYS_JJ_ESPDMA);
3475187d	272	slavio_misc = slavio_misc_init(PHYS_JJ_SLAVIO, PHYS_JJ_ME_IRQ);
420557e8	273
e80cfcfc FB	274	prom_offset = ram_size + vram_size;
	275
	276	snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEE);
	277	ret = load_elf(buf, phys_ram_base + prom_offset);
	278	if (ret < 0) {
8d5f07fa	279	snprintf(buf, sizeof(buf), "%s/%s", bios_dir, PROM_FILENAMEB);
e80cfcfc FB	280	ret = load_image(buf, phys_ram_base + prom_offset);
	281	}
	282	if (ret < 0) {
	283	fprintf(stderr, "qemu: could not load prom '%s'\n",
	284	buf);
	285	exit(1);
	286	}
	287	cpu_register_physical_memory(PROM_ADDR, (ret + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK,
	288	prom_offset \| IO_MEM_ROM);
	289
6f7e9aec	290	kernel_size = 0;
e80cfcfc	291	if (linux_boot) {
6f7e9aec FB	292	kernel_size = load_elf(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
	293	if (kernel_size < 0)
	294	kernel_size = load_aout(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
	295	if (kernel_size < 0)
	296	kernel_size = load_image(kernel_filename, phys_ram_base + KERNEL_LOAD_ADDR);
	297	if (kernel_size < 0) {
420557e8	298	fprintf(stderr, "qemu: could not load kernel '%s'\n",
e80cfcfc FB	299	kernel_filename);
e80cfcfc FB	300	exit(1);
420557e8	301	}
713c45fa FB	302
	303	/* load initrd */
	304	initrd_size = 0;
	305	if (initrd_filename) {
	306	initrd_size = load_image(initrd_filename, phys_ram_base + INITRD_LOAD_ADDR);
	307	if (initrd_size < 0) {
	308	fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
	309	initrd_filename);
	310	exit(1);
	311	}
	312	}
	313	if (initrd_size > 0) {
	314	for (i = 0; i < 64 * TARGET_PAGE_SIZE; i += TARGET_PAGE_SIZE) {
	315	if (ldl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i)
	316	== 0x48647253) { // HdrS
	317	stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 16, INITRD_LOAD_ADDR);
	318	stl_raw(phys_ram_base + KERNEL_LOAD_ADDR + i + 20, initrd_size);
	319	break;
	320	}
	321	}
	322	}
420557e8	323	}
6f7e9aec	324	nvram_init(nvram, (uint8_t *)&nd_table[0].macaddr, kernel_cmdline, boot_device, ram_size, kernel_size, graphic_width, graphic_height, graphic_depth);
420557e8	325	}
c0e564d5 FB	326
	327	QEMUMachine sun4m_machine = {
	328	"sun4m",
	329	"Sun4m platform",
	330	sun4m_init,
	331	};