Share devices that might be useful for all PowerPC 40x & 440 implementations

 (mostly CPU registration and UIC, for now).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3340 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 2 insertions, 507 deletions

diff --git a/hw/ppc405_uc.c b/hw/ppc405_uc.c
index 8a31475ed1..55f4bcc3d1 100644
--- a/hw/ppc405_uc.c
+++ b/hw/ppc405_uc.c
@@ -27,7 +27,6 @@
 extern int loglevel;
 extern FILE *logfile;
 
-//#define DEBUG_MMIO
 #define DEBUG_OPBA
 #define DEBUG_SDRAM
 #define DEBUG_GPIO
@@ -36,41 +35,9 @@ extern FILE *logfile;
 //#define DEBUG_I2C
 #define DEBUG_GPT
 #define DEBUG_MAL
-#define DEBUG_UIC
 #define DEBUG_CLOCKS
 //#define DEBUG_UNASSIGNED
 
-/*****************************************************************************/
-/* Generic PowerPC 405 processor instanciation */
-CPUState *ppc405_init (const unsigned char *cpu_model,
-                       clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
-                       uint32_t sysclk)
-{
-    CPUState *env;
-    ppc_def_t *def;
-
-    /* init CPUs */
-    env = cpu_init();
-    ppc_find_by_name(cpu_model, &def);
-    if (def == NULL) {
-        cpu_abort(env, "Unable to find PowerPC %s CPU definition\n",
-                  cpu_model);
-    }
-    cpu_ppc_register(env, def);
-    cpu_ppc_reset(env);
-    cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
-    cpu_clk->opaque = env;
-    /* Set time-base frequency to sysclk */
-    tb_clk->cb = ppc_emb_timers_init(env, sysclk);
-    tb_clk->opaque = env;
-    ppc_dcr_init(env, NULL, NULL);
-    /* Register Qemu callbacks */
-    qemu_register_reset(&cpu_ppc_reset, env);
-    register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
-
-    return env;
-}
-
 ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
                                 uint32_t flags)
 {
@@ -124,203 +91,6 @@ ram_addr_t ppc405_set_bootinfo (CPUState *env, ppc4xx_bd_info_t *bd,
 /* Shared peripherals */
 
 /*****************************************************************************/
-/* Fake device used to map multiple devices in a single memory page */
-#define MMIO_AREA_BITS 8
-#define MMIO_AREA_LEN (1 << MMIO_AREA_BITS)
-#define MMIO_AREA_NB (1 << (TARGET_PAGE_BITS - MMIO_AREA_BITS))
-#define MMIO_IDX(addr) (((addr) >> MMIO_AREA_BITS) & (MMIO_AREA_NB - 1))
-struct ppc4xx_mmio_t {
-    target_phys_addr_t base;
-    CPUReadMemoryFunc **mem_read[MMIO_AREA_NB];
-    CPUWriteMemoryFunc **mem_write[MMIO_AREA_NB];
-    void *opaque[MMIO_AREA_NB];
-};
-
-static uint32_t unassigned_mmio_readb (void *opaque, target_phys_addr_t addr)
-{
-#ifdef DEBUG_UNASSIGNED
-    ppc4xx_mmio_t *mmio;
-
-    mmio = opaque;
-    printf("Unassigned mmio read 0x" PADDRX " base " PADDRX "\n",
-           addr, mmio->base);
-#endif
-
-    return 0;
-}
-
-static void unassigned_mmio_writeb (void *opaque,
-                                   target_phys_addr_t addr, uint32_t val)
-{
-#ifdef DEBUG_UNASSIGNED
-    ppc4xx_mmio_t *mmio;
-
-    mmio = opaque;
-    printf("Unassigned mmio write 0x" PADDRX " = 0x%x base " PADDRX "\n",
-           addr, val, mmio->base);
-#endif
-}
-
-static CPUReadMemoryFunc *unassigned_mmio_read[3] = {
-    unassigned_mmio_readb,
-    unassigned_mmio_readb,
-    unassigned_mmio_readb,
-};
-
-static CPUWriteMemoryFunc *unassigned_mmio_write[3] = {
-    unassigned_mmio_writeb,
-    unassigned_mmio_writeb,
-    unassigned_mmio_writeb,
-};
-
-static uint32_t mmio_readlen (ppc4xx_mmio_t *mmio,
-                              target_phys_addr_t addr, int len)
-{
-    CPUReadMemoryFunc **mem_read;
-    uint32_t ret;
-    int idx;
-
-    idx = MMIO_IDX(addr - mmio->base);
-#if defined(DEBUG_MMIO)
-    printf("%s: mmio %p len %d addr " PADDRX " idx %d\n", __func__,
-           mmio, len, addr, idx);
-#endif
-    mem_read = mmio->mem_read[idx];
-    ret = (*mem_read[len])(mmio->opaque[idx], addr - mmio->base);
-
-    return ret;
-}
-
-static void mmio_writelen (ppc4xx_mmio_t *mmio,
-                           target_phys_addr_t addr, uint32_t value, int len)
-{
-    CPUWriteMemoryFunc **mem_write;
-    int idx;
-
-    idx = MMIO_IDX(addr - mmio->base);
-#if defined(DEBUG_MMIO)
-    printf("%s: mmio %p len %d addr " PADDRX " idx %d value %08x\n", __func__,
-           mmio, len, addr, idx, value);
-#endif
-    mem_write = mmio->mem_write[idx];
-    (*mem_write[len])(mmio->opaque[idx], addr - mmio->base, value);
-}
-
-static uint32_t mmio_readb (void *opaque, target_phys_addr_t addr)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX "\n", __func__, addr);
-#endif
-
-    return mmio_readlen(opaque, addr, 0);
-}
-
-static void mmio_writeb (void *opaque,
-                         target_phys_addr_t addr, uint32_t value)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
-#endif
-    mmio_writelen(opaque, addr, value, 0);
-}
-
-static uint32_t mmio_readw (void *opaque, target_phys_addr_t addr)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX "\n", __func__, addr);
-#endif
-
-    return mmio_readlen(opaque, addr, 1);
-}
-
-static void mmio_writew (void *opaque,
-                         target_phys_addr_t addr, uint32_t value)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
-#endif
-    mmio_writelen(opaque, addr, value, 1);
-}
-
-static uint32_t mmio_readl (void *opaque, target_phys_addr_t addr)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX "\n", __func__, addr);
-#endif
-
-    return mmio_readlen(opaque, addr, 2);
-}
-
-static void mmio_writel (void *opaque,
-                         target_phys_addr_t addr, uint32_t value)
-{
-#if defined(DEBUG_MMIO)
-    printf("%s: addr " PADDRX " val %08x\n", __func__, addr, value);
-#endif
-    mmio_writelen(opaque, addr, value, 2);
-}
-
-static CPUReadMemoryFunc *mmio_read[] = {
-    &mmio_readb,
-    &mmio_readw,
-    &mmio_readl,
-};
-
-static CPUWriteMemoryFunc *mmio_write[] = {
-    &mmio_writeb,
-    &mmio_writew,
-    &mmio_writel,
-};
-
-int ppc4xx_mmio_register (CPUState *env, ppc4xx_mmio_t *mmio,
-                          target_phys_addr_t offset, uint32_t len,
-                          CPUReadMemoryFunc **mem_read,
-                          CPUWriteMemoryFunc **mem_write, void *opaque)
-{
-    uint32_t end;
-    int idx, eidx;
-
-    if ((offset + len) > TARGET_PAGE_SIZE)
-        return -1;
-    idx = MMIO_IDX(offset);
-    end = offset + len - 1;
-    eidx = MMIO_IDX(end);
-#if defined(DEBUG_MMIO)
-    printf("%s: offset %08x len %08x %08x %d %d\n", __func__, offset, len,
-           end, idx, eidx);
-#endif
-    for (; idx <= eidx; idx++) {
-        mmio->mem_read[idx] = mem_read;
-        mmio->mem_write[idx] = mem_write;
-        mmio->opaque[idx] = opaque;
-    }
-
-    return 0;
-}
-
-ppc4xx_mmio_t *ppc4xx_mmio_init (CPUState *env, target_phys_addr_t base)
-{
-    ppc4xx_mmio_t *mmio;
-    int mmio_memory;
-
-    mmio = qemu_mallocz(sizeof(ppc4xx_mmio_t));
-    if (mmio != NULL) {
-        mmio->base = base;
-        mmio_memory = cpu_register_io_memory(0, mmio_read, mmio_write, mmio);
-#if defined(DEBUG_MMIO)
-        printf("%s: %p base %08x len %08x %d\n", __func__,
-               mmio, base, TARGET_PAGE_SIZE, mmio_memory);
-#endif
-        cpu_register_physical_memory(base, TARGET_PAGE_SIZE, mmio_memory);
-        ppc4xx_mmio_register(env, mmio, 0, TARGET_PAGE_SIZE,
-                             unassigned_mmio_read, unassigned_mmio_write,
-                             mmio);
-    }
-
-    return mmio;
-}
-
-/*****************************************************************************/
 /* Peripheral local bus arbitrer */
 enum {
     PLB0_BESR = 0x084,
@@ -625,281 +395,6 @@ void ppc4xx_opba_init (CPUState *env, ppc4xx_mmio_t *mmio,
 }
 
 /*****************************************************************************/
-/* "Universal" Interrupt controller */
-enum {
-    DCR_UICSR  = 0x000,
-    DCR_UICSRS = 0x001,
-    DCR_UICER  = 0x002,
-    DCR_UICCR  = 0x003,
-    DCR_UICPR  = 0x004,
-    DCR_UICTR  = 0x005,
-    DCR_UICMSR = 0x006,
-    DCR_UICVR  = 0x007,
-    DCR_UICVCR = 0x008,
-    DCR_UICMAX = 0x009,
-};
-
-#define UIC_MAX_IRQ 32
-typedef struct ppcuic_t ppcuic_t;
-struct ppcuic_t {
-    uint32_t dcr_base;
-    int use_vectors;
-    uint32_t uicsr;  /* Status register */
-    uint32_t uicer;  /* Enable register */
-    uint32_t uiccr;  /* Critical register */
-    uint32_t uicpr;  /* Polarity register */
-    uint32_t uictr;  /* Triggering register */
-    uint32_t uicvcr; /* Vector configuration register */
-    uint32_t uicvr;
-    qemu_irq *irqs;
-};
-
-static void ppcuic_trigger_irq (ppcuic_t *uic)
-{
-    uint32_t ir, cr;
-    int start, end, inc, i;
-
-    /* Trigger interrupt if any is pending */
-    ir = uic->uicsr & uic->uicer & (~uic->uiccr);
-    cr = uic->uicsr & uic->uicer & uic->uiccr;
-#ifdef DEBUG_UIC
-    if (loglevel & CPU_LOG_INT) {
-        fprintf(logfile, "%s: uicsr %08x uicer %08x uiccr %08x\n"
-                "   %08x ir %08x cr %08x\n", __func__,
-                uic->uicsr, uic->uicer, uic->uiccr,
-                uic->uicsr & uic->uicer, ir, cr);
-    }
-#endif
-    if (ir != 0x0000000) {
-#ifdef DEBUG_UIC
-        if (loglevel & CPU_LOG_INT) {
-            fprintf(logfile, "Raise UIC interrupt\n");
-        }
-#endif
-        qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_INT]);
-    } else {
-#ifdef DEBUG_UIC
-        if (loglevel & CPU_LOG_INT) {
-            fprintf(logfile, "Lower UIC interrupt\n");
-        }
-#endif
-        qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_INT]);
-    }
-    /* Trigger critical interrupt if any is pending and update vector */
-    if (cr != 0x0000000) {
-        qemu_irq_raise(uic->irqs[PPCUIC_OUTPUT_CINT]);
-        if (uic->use_vectors) {
-            /* Compute critical IRQ vector */
-            if (uic->uicvcr & 1) {
-                start = 31;
-                end = 0;
-                inc = -1;
-            } else {
-                start = 0;
-                end = 31;
-                inc = 1;
-            }
-            uic->uicvr = uic->uicvcr & 0xFFFFFFFC;
-            for (i = start; i <= end; i += inc) {
-                if (cr & (1 << i)) {
-                    uic->uicvr += (i - start) * 512 * inc;
-                    break;
-                }
-            }
-        }
-#ifdef DEBUG_UIC
-        if (loglevel & CPU_LOG_INT) {
-            fprintf(logfile, "Raise UIC critical interrupt - vector %08x\n",
-                    uic->uicvr);
-        }
-#endif
-    } else {
-#ifdef DEBUG_UIC
-        if (loglevel & CPU_LOG_INT) {
-            fprintf(logfile, "Lower UIC critical interrupt\n");
-        }
-#endif
-        qemu_irq_lower(uic->irqs[PPCUIC_OUTPUT_CINT]);
-        uic->uicvr = 0x00000000;
-    }
-}
-
-static void ppcuic_set_irq (void *opaque, int irq_num, int level)
-{
-    ppcuic_t *uic;
-    uint32_t mask, sr;
-
-    uic = opaque;
-    mask = 1 << irq_num;
-#ifdef DEBUG_UIC
-    if (loglevel & CPU_LOG_INT) {
-        fprintf(logfile, "%s: irq %d level %d uicsr %08x mask %08x => %08x "
-                "%08x\n", __func__, irq_num, level,
-                uic->uicsr, mask, uic->uicsr & mask, level << irq_num);
-    }
-#endif
-    if (irq_num < 0 || irq_num > 31)
-        return;
-    sr = uic->uicsr;
-    if (!(uic->uicpr & mask)) {
-        /* Negatively asserted IRQ */
-        level = level == 0 ? 1 : 0;
-    }
-    /* Update status register */
-    if (uic->uictr & mask) {
-        /* Edge sensitive interrupt */
-        if (level == 1)
-            uic->uicsr |= mask;
-    } else {
-        /* Level sensitive interrupt */
-        if (level == 1)
-            uic->uicsr |= mask;
-        else
-            uic->uicsr &= ~mask;
-    }
-#ifdef DEBUG_UIC
-    if (loglevel & CPU_LOG_INT) {
-        fprintf(logfile, "%s: irq %d level %d sr %08x => %08x\n", __func__,
-                irq_num, level, uic->uicsr, sr);
-    }
-#endif
-    if (sr != uic->uicsr)
-        ppcuic_trigger_irq(uic);
-}
-
-static target_ulong dcr_read_uic (void *opaque, int dcrn)
-{
-    ppcuic_t *uic;
-    target_ulong ret;
-
-    uic = opaque;
-    dcrn -= uic->dcr_base;
-    switch (dcrn) {
-    case DCR_UICSR:
-    case DCR_UICSRS:
-        ret = uic->uicsr;
-        break;
-    case DCR_UICER:
-        ret = uic->uicer;
-        break;
-    case DCR_UICCR:
-        ret = uic->uiccr;
-        break;
-    case DCR_UICPR:
-        ret = uic->uicpr;
-        break;
-    case DCR_UICTR:
-        ret = uic->uictr;
-        break;
-    case DCR_UICMSR:
-        ret = uic->uicsr & uic->uicer;
-        break;
-    case DCR_UICVR:
-        if (!uic->use_vectors)
-            goto no_read;
-        ret = uic->uicvr;
-        break;
-    case DCR_UICVCR:
-        if (!uic->use_vectors)
-            goto no_read;
-        ret = uic->uicvcr;
-        break;
-    default:
-    no_read:
-        ret = 0x00000000;
-        break;
-    }
-
-    return ret;
-}
-
-static void dcr_write_uic (void *opaque, int dcrn, target_ulong val)
-{
-    ppcuic_t *uic;
-
-    uic = opaque;
-    dcrn -= uic->dcr_base;
-#ifdef DEBUG_UIC
-    if (loglevel & CPU_LOG_INT) {
-        fprintf(logfile, "%s: dcr %d val " ADDRX "\n", __func__, dcrn, val);
-    }
-#endif
-    switch (dcrn) {
-    case DCR_UICSR:
-        uic->uicsr &= ~val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICSRS:
-        uic->uicsr |= val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICER:
-        uic->uicer = val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICCR:
-        uic->uiccr = val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICPR:
-        uic->uicpr = val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICTR:
-        uic->uictr = val;
-        ppcuic_trigger_irq(uic);
-        break;
-    case DCR_UICMSR:
-        break;
-    case DCR_UICVR:
-        break;
-    case DCR_UICVCR:
-        uic->uicvcr = val & 0xFFFFFFFD;
-        ppcuic_trigger_irq(uic);
-        break;
-    }
-}
-
-static void ppcuic_reset (void *opaque)
-{
-    ppcuic_t *uic;
-
-    uic = opaque;
-    uic->uiccr = 0x00000000;
-    uic->uicer = 0x00000000;
-    uic->uicpr = 0x00000000;
-    uic->uicsr = 0x00000000;
-    uic->uictr = 0x00000000;
-    if (uic->use_vectors) {
-        uic->uicvcr = 0x00000000;
-        uic->uicvr = 0x0000000;
-    }
-}
-
-qemu_irq *ppcuic_init (CPUState *env, qemu_irq *irqs,
-                       uint32_t dcr_base, int has_ssr, int has_vr)
-{
-    ppcuic_t *uic;
-    int i;
-
-    uic = qemu_mallocz(sizeof(ppcuic_t));
-    if (uic != NULL) {
-        uic->dcr_base = dcr_base;
-        uic->irqs = irqs;
-        if (has_vr)
-            uic->use_vectors = 1;
-        for (i = 0; i < DCR_UICMAX; i++) {
-            ppc_dcr_register(env, dcr_base + i, uic,
-                             &dcr_read_uic, &dcr_write_uic);
-        }
-        qemu_register_reset(ppcuic_reset, uic);
-        ppcuic_reset(uic);
-    }
-
-    return qemu_allocate_irqs(&ppcuic_set_irq, uic, UIC_MAX_IRQ);
-}
-
-/*****************************************************************************/
 /* Code decompression controller */
 /* XXX: TODO */
 
@@ -3040,7 +2535,7 @@ CPUState *ppc405cr_init (target_phys_addr_t ram_bases[4],
     int i;
 
     memset(clk_setup, 0, sizeof(clk_setup));
-    env = ppc405_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
+    env = ppc4xx_init("405cr", &clk_setup[PPC405CR_CPU_CLK],
                       &clk_setup[PPC405CR_TMR_CLK], sysclk);
     /* Memory mapped devices registers */
     mmio = ppc4xx_mmio_init(env, 0xEF600000);
@@ -3390,7 +2885,7 @@ CPUState *ppc405ep_init (target_phys_addr_t ram_bases[2],
 
     memset(clk_setup, 0, sizeof(clk_setup));
     /* init CPUs */
-    env = ppc405_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
+    env = ppc4xx_init("405ep", &clk_setup[PPC405EP_CPU_CLK],
                       &tlb_clk_setup, sysclk);
     clk_setup[PPC405EP_CPU_CLK].cb = tlb_clk_setup.cb;
     clk_setup[PPC405EP_CPU_CLK].opaque = tlb_clk_setup.opaque;