hw: move interrupt controllers to hw/intc/, configure with default-configs/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 0 insertions, 513 deletions

diff --git a/hw/sh_intc.c b/hw/sh_intc.c
deleted file mode 100644
index 050bfb63ce..0000000000
--- a/hw/sh_intc.c
+++ /dev/null
@@ -1,513 +0,0 @@
-/*
- * SuperH interrupt controller module
- *
- * Copyright (c) 2007 Magnus Damm
- * Based on sh_timer.c and arm_timer.c by Paul Brook
- * Copyright (c) 2005-2006 CodeSourcery.
- *
- * This code is licensed under the GPL.
- */
-
-#include "hw/sh4/sh_intc.h"
-#include "hw/hw.h"
-#include "hw/sh4/sh.h"
-
-//#define DEBUG_INTC
-//#define DEBUG_INTC_SOURCES
-
-#define INTC_A7(x) ((x) & 0x1fffffff)
-
-void sh_intc_toggle_source(struct intc_source *source,
-			   int enable_adj, int assert_adj)
-{
-    int enable_changed = 0;
-    int pending_changed = 0;
-    int old_pending;
-
-    if ((source->enable_count == source->enable_max) && (enable_adj == -1))
-        enable_changed = -1;
-
-    source->enable_count += enable_adj;
-
-    if (source->enable_count == source->enable_max)
-        enable_changed = 1;
-
-    source->asserted += assert_adj;
-
-    old_pending = source->pending;
-    source->pending = source->asserted &&
-      (source->enable_count == source->enable_max);
-
-    if (old_pending != source->pending)
-        pending_changed = 1;
-
-    if (pending_changed) {
-        CPUState *cpu = CPU(sh_env_get_cpu(first_cpu));
-        if (source->pending) {
-            source->parent->pending++;
-            if (source->parent->pending == 1) {
-                cpu_interrupt(cpu, CPU_INTERRUPT_HARD);
-            }
-        } else {
-            source->parent->pending--;
-            if (source->parent->pending == 0) {
-                cpu_reset_interrupt(cpu, CPU_INTERRUPT_HARD);
-            }
-	}
-    }
-
-  if (enable_changed || assert_adj || pending_changed) {
-#ifdef DEBUG_INTC_SOURCES
-            printf("sh_intc: (%d/%d/%d/%d) interrupt source 0x%x %s%s%s\n",
-		   source->parent->pending,
-		   source->asserted,
-		   source->enable_count,
-		   source->enable_max,
-		   source->vect,
-		   source->asserted ? "asserted " :
-		   assert_adj ? "deasserted" : "",
-		   enable_changed == 1 ? "enabled " :
-		   enable_changed == -1 ? "disabled " : "",
-		   source->pending ? "pending" : "");
-#endif
-  }
-}
-
-static void sh_intc_set_irq (void *opaque, int n, int level)
-{
-  struct intc_desc *desc = opaque;
-  struct intc_source *source = &(desc->sources[n]);
-
-  if (level && !source->asserted)
-    sh_intc_toggle_source(source, 0, 1);
-  else if (!level && source->asserted)
-    sh_intc_toggle_source(source, 0, -1);
-}
-
-int sh_intc_get_pending_vector(struct intc_desc *desc, int imask)
-{
-    unsigned int i;
-
-    /* slow: use a linked lists of pending sources instead */
-    /* wrong: take interrupt priority into account (one list per priority) */
-
-    if (imask == 0x0f) {
-        return -1; /* FIXME, update code to include priority per source */
-    }
-
-    for (i = 0; i < desc->nr_sources; i++) {
-        struct intc_source *source = desc->sources + i;
-
-	if (source->pending) {
-#ifdef DEBUG_INTC_SOURCES
-            printf("sh_intc: (%d) returning interrupt source 0x%x\n",
-		   desc->pending, source->vect);
-#endif
-            return source->vect;
-	}
-    }
-
-    abort();
-}
-
-#define INTC_MODE_NONE       0
-#define INTC_MODE_DUAL_SET   1
-#define INTC_MODE_DUAL_CLR   2
-#define INTC_MODE_ENABLE_REG 3
-#define INTC_MODE_MASK_REG   4
-#define INTC_MODE_IS_PRIO    8
-
-static unsigned int sh_intc_mode(unsigned long address,
-				 unsigned long set_reg, unsigned long clr_reg)
-{
-    if ((address != INTC_A7(set_reg)) &&
-	(address != INTC_A7(clr_reg)))
-        return INTC_MODE_NONE;
-
-    if (set_reg && clr_reg) {
-        if (address == INTC_A7(set_reg))
-            return INTC_MODE_DUAL_SET;
-	else
-            return INTC_MODE_DUAL_CLR;
-    }
-
-    if (set_reg)
-        return INTC_MODE_ENABLE_REG;
-    else
-        return INTC_MODE_MASK_REG;
-}
-
-static void sh_intc_locate(struct intc_desc *desc,
-			   unsigned long address,
-			   unsigned long **datap,
-			   intc_enum **enums,
-			   unsigned int *first,
-			   unsigned int *width,
-			   unsigned int *modep)
-{
-    unsigned int i, mode;
-
-    /* this is slow but works for now */
-
-    if (desc->mask_regs) {
-        for (i = 0; i < desc->nr_mask_regs; i++) {
-	    struct intc_mask_reg *mr = desc->mask_regs + i;
-
-	    mode = sh_intc_mode(address, mr->set_reg, mr->clr_reg);
-	    if (mode == INTC_MODE_NONE)
-                continue;
-
-	    *modep = mode;
-	    *datap = &mr->value;
-	    *enums = mr->enum_ids;
-	    *first = mr->reg_width - 1;
-	    *width = 1;
-	    return;
-	}
-    }
-
-    if (desc->prio_regs) {
-        for (i = 0; i < desc->nr_prio_regs; i++) {
-	    struct intc_prio_reg *pr = desc->prio_regs + i;
-
-	    mode = sh_intc_mode(address, pr->set_reg, pr->clr_reg);
-	    if (mode == INTC_MODE_NONE)
-                continue;
-
-	    *modep = mode | INTC_MODE_IS_PRIO;
-	    *datap = &pr->value;
-	    *enums = pr->enum_ids;
-	    *first = (pr->reg_width / pr->field_width) - 1;
-	    *width = pr->field_width;
-	    return;
-	}
-    }
-
-    abort();
-}
-
-static void sh_intc_toggle_mask(struct intc_desc *desc, intc_enum id,
-				int enable, int is_group)
-{
-    struct intc_source *source = desc->sources + id;
-
-    if (!id)
-	return;
-
-    if (!source->next_enum_id && (!source->enable_max || !source->vect)) {
-#ifdef DEBUG_INTC_SOURCES
-        printf("sh_intc: reserved interrupt source %d modified\n", id);
-#endif
-	return;
-    }
-
-    if (source->vect)
-        sh_intc_toggle_source(source, enable ? 1 : -1, 0);
-
-#ifdef DEBUG_INTC
-    else {
-        printf("setting interrupt group %d to %d\n", id, !!enable);
-    }
-#endif
-
-    if ((is_group || !source->vect) && source->next_enum_id) {
-        sh_intc_toggle_mask(desc, source->next_enum_id, enable, 1);
-    }
-
-#ifdef DEBUG_INTC
-    if (!source->vect) {
-        printf("setting interrupt group %d to %d - done\n", id, !!enable);
-    }
-#endif
-}
-
-static uint64_t sh_intc_read(void *opaque, hwaddr offset,
-                             unsigned size)
-{
-    struct intc_desc *desc = opaque;
-    intc_enum *enum_ids = NULL;
-    unsigned int first = 0;
-    unsigned int width = 0;
-    unsigned int mode = 0;
-    unsigned long *valuep;
-
-#ifdef DEBUG_INTC
-    printf("sh_intc_read 0x%lx\n", (unsigned long) offset);
-#endif
-
-    sh_intc_locate(desc, (unsigned long)offset, &valuep, 
-		   &enum_ids, &first, &width, &mode);
-    return *valuep;
-}
-
-static void sh_intc_write(void *opaque, hwaddr offset,
-                          uint64_t value, unsigned size)
-{
-    struct intc_desc *desc = opaque;
-    intc_enum *enum_ids = NULL;
-    unsigned int first = 0;
-    unsigned int width = 0;
-    unsigned int mode = 0;
-    unsigned int k;
-    unsigned long *valuep;
-    unsigned long mask;
-
-#ifdef DEBUG_INTC
-    printf("sh_intc_write 0x%lx 0x%08x\n", (unsigned long) offset, value);
-#endif
-
-    sh_intc_locate(desc, (unsigned long)offset, &valuep, 
-		   &enum_ids, &first, &width, &mode);
-
-    switch (mode) {
-    case INTC_MODE_ENABLE_REG | INTC_MODE_IS_PRIO: break;
-    case INTC_MODE_DUAL_SET: value |= *valuep; break;
-    case INTC_MODE_DUAL_CLR: value = *valuep & ~value; break;
-    default: abort();
-    }
-
-    for (k = 0; k <= first; k++) {
-        mask = ((1 << width) - 1) << ((first - k) * width);
-
-	if ((*valuep & mask) == (value & mask))
-            continue;
-#if 0
-	printf("k = %d, first = %d, enum = %d, mask = 0x%08x\n", 
-	       k, first, enum_ids[k], (unsigned int)mask);
-#endif
-        sh_intc_toggle_mask(desc, enum_ids[k], value & mask, 0);
-    }
-
-    *valuep = value;
-
-#ifdef DEBUG_INTC
-    printf("sh_intc_write 0x%lx -> 0x%08x\n", (unsigned long) offset, value);
-#endif
-}
-
-static const MemoryRegionOps sh_intc_ops = {
-    .read = sh_intc_read,
-    .write = sh_intc_write,
-    .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-struct intc_source *sh_intc_source(struct intc_desc *desc, intc_enum id)
-{
-    if (id)
-        return desc->sources + id;
-
-    return NULL;
-}
-
-static unsigned int sh_intc_register(MemoryRegion *sysmem,
-                             struct intc_desc *desc,
-                             const unsigned long address,
-                             const char *type,
-                             const char *action,
-                             const unsigned int index)
-{
-    char name[60];
-    MemoryRegion *iomem, *iomem_p4, *iomem_a7;
-
-    if (!address) {
-        return 0;
-    }
-
-    iomem = &desc->iomem;
-    iomem_p4 = desc->iomem_aliases + index;
-    iomem_a7 = iomem_p4 + 1;
-
-#define SH_INTC_IOMEM_FORMAT "interrupt-controller-%s-%s-%s"
-    snprintf(name, sizeof(name), SH_INTC_IOMEM_FORMAT, type, action, "p4");
-    memory_region_init_alias(iomem_p4, name, iomem, INTC_A7(address), 4);
-    memory_region_add_subregion(sysmem, P4ADDR(address), iomem_p4);
-
-    snprintf(name, sizeof(name), SH_INTC_IOMEM_FORMAT, type, action, "a7");
-    memory_region_init_alias(iomem_a7, name, iomem, INTC_A7(address), 4);
-    memory_region_add_subregion(sysmem, A7ADDR(address), iomem_a7);
-#undef SH_INTC_IOMEM_FORMAT
-
-    /* used to increment aliases index */
-    return 2;
-}
-
-static void sh_intc_register_source(struct intc_desc *desc,
-				    intc_enum source,
-				    struct intc_group *groups,
-				    int nr_groups)
-{
-    unsigned int i, k;
-    struct intc_source *s;
-
-    if (desc->mask_regs) {
-        for (i = 0; i < desc->nr_mask_regs; i++) {
-	    struct intc_mask_reg *mr = desc->mask_regs + i;
-
-	    for (k = 0; k < ARRAY_SIZE(mr->enum_ids); k++) {
-                if (mr->enum_ids[k] != source)
-                    continue;
-
-		s = sh_intc_source(desc, mr->enum_ids[k]);
-		if (s)
-                    s->enable_max++;
-	    }
-	}
-    }
-
-    if (desc->prio_regs) {
-        for (i = 0; i < desc->nr_prio_regs; i++) {
-	    struct intc_prio_reg *pr = desc->prio_regs + i;
-
-	    for (k = 0; k < ARRAY_SIZE(pr->enum_ids); k++) {
-                if (pr->enum_ids[k] != source)
-                    continue;
-
-		s = sh_intc_source(desc, pr->enum_ids[k]);
-		if (s)
-                    s->enable_max++;
-	    }
-	}
-    }
-
-    if (groups) {
-        for (i = 0; i < nr_groups; i++) {
-	    struct intc_group *gr = groups + i;
-
-	    for (k = 0; k < ARRAY_SIZE(gr->enum_ids); k++) {
-                if (gr->enum_ids[k] != source)
-                    continue;
-
-		s = sh_intc_source(desc, gr->enum_ids[k]);
-		if (s)
-                    s->enable_max++;
-	    }
-	}
-    }
-
-}
-
-void sh_intc_register_sources(struct intc_desc *desc,
-			      struct intc_vect *vectors,
-			      int nr_vectors,
-			      struct intc_group *groups,
-			      int nr_groups)
-{
-    unsigned int i, k;
-    struct intc_source *s;
-
-    for (i = 0; i < nr_vectors; i++) {
-	struct intc_vect *vect = vectors + i;
-
-	sh_intc_register_source(desc, vect->enum_id, groups, nr_groups);
-	s = sh_intc_source(desc, vect->enum_id);
-        if (s) {
-            s->vect = vect->vect;
-
-#ifdef DEBUG_INTC_SOURCES
-            printf("sh_intc: registered source %d -> 0x%04x (%d/%d)\n",
-                   vect->enum_id, s->vect, s->enable_count, s->enable_max);
-#endif
-        }
-    }
-
-    if (groups) {
-        for (i = 0; i < nr_groups; i++) {
-	    struct intc_group *gr = groups + i;
-
-	    s = sh_intc_source(desc, gr->enum_id);
-	    s->next_enum_id = gr->enum_ids[0];
-
-	    for (k = 1; k < ARRAY_SIZE(gr->enum_ids); k++) {
-                if (!gr->enum_ids[k])
-                    continue;
-
-		s = sh_intc_source(desc, gr->enum_ids[k - 1]);
-		s->next_enum_id = gr->enum_ids[k];
-	    }
-
-#ifdef DEBUG_INTC_SOURCES
-	    printf("sh_intc: registered group %d (%d/%d)\n",
-		   gr->enum_id, s->enable_count, s->enable_max);
-#endif
-	}
-    }
-}
-
-int sh_intc_init(MemoryRegion *sysmem,
-         struct intc_desc *desc,
-		 int nr_sources,
-		 struct intc_mask_reg *mask_regs,
-		 int nr_mask_regs,
-		 struct intc_prio_reg *prio_regs,
-		 int nr_prio_regs)
-{
-    unsigned int i, j;
-
-    desc->pending = 0;
-    desc->nr_sources = nr_sources;
-    desc->mask_regs = mask_regs;
-    desc->nr_mask_regs = nr_mask_regs;
-    desc->prio_regs = prio_regs;
-    desc->nr_prio_regs = nr_prio_regs;
-    /* Allocate 4 MemoryRegions per register (2 actions * 2 aliases).
-     **/
-    desc->iomem_aliases = g_new0(MemoryRegion,
-                                 (nr_mask_regs + nr_prio_regs) * 4);
-
-    j = 0;
-    i = sizeof(struct intc_source) * nr_sources;
-    desc->sources = g_malloc0(i);
-
-    for (i = 0; i < desc->nr_sources; i++) {
-        struct intc_source *source = desc->sources + i;
-
-        source->parent = desc;
-    }
-
-    desc->irqs = qemu_allocate_irqs(sh_intc_set_irq, desc, nr_sources);
- 
-    memory_region_init_io(&desc->iomem, &sh_intc_ops, desc,
-                          "interrupt-controller", 0x100000000ULL);
-
-#define INT_REG_PARAMS(reg_struct, type, action, j) \
-        reg_struct->action##_reg, #type, #action, j
-    if (desc->mask_regs) {
-        for (i = 0; i < desc->nr_mask_regs; i++) {
-	    struct intc_mask_reg *mr = desc->mask_regs + i;
-
-            j += sh_intc_register(sysmem, desc,
-                                  INT_REG_PARAMS(mr, mask, set, j));
-            j += sh_intc_register(sysmem, desc,
-                                  INT_REG_PARAMS(mr, mask, clr, j));
-	}
-    }
-
-    if (desc->prio_regs) {
-        for (i = 0; i < desc->nr_prio_regs; i++) {
-	    struct intc_prio_reg *pr = desc->prio_regs + i;
-
-            j += sh_intc_register(sysmem, desc,
-                                  INT_REG_PARAMS(pr, prio, set, j));
-            j += sh_intc_register(sysmem, desc,
-                                  INT_REG_PARAMS(pr, prio, clr, j));
-	}
-    }
-#undef INT_REG_PARAMS
-
-    return 0;
-}
-
-/* Assert level <n> IRL interrupt. 
-   0:deassert. 1:lowest priority,... 15:highest priority. */
-void sh_intc_set_irl(void *opaque, int n, int level)
-{
-    struct intc_source *s = opaque;
-    int i, irl = level ^ 15;
-    for (i = 0; (s = sh_intc_source(s->parent, s->next_enum_id)); i++) {
-	if (i == irl)
-	    sh_intc_toggle_source(s, s->enable_count?0:1, s->asserted?0:1);
-	else
-	    if (s->asserted)
-	        sh_intc_toggle_source(s, 0, -1);
-    }
-}