From 347dd79dccf41a679115213da673dfd06c4c8cc8 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Wed, 12 Dec 2012 13:47:07 +0100 Subject: PPC: E500: Generate dt pci irq map dynamically Today we're hardcoding the PCI interrupt map in the e500 machine file. Instead, let's write it dynamically so that different machine types can have different slot properties. Signed-off-by: Alexander Graf --- hw/ppc/e500.c | 51 +++++++++++++++++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 20 deletions(-) (limited to 'hw/ppc/e500.c') diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c index 1034f93963..ebb6d96689 100644 --- a/hw/ppc/e500.c +++ b/hw/ppc/e500.c @@ -66,25 +66,33 @@ struct boot_info uint32_t entry; }; -static void pci_map_create(void *fdt, uint32_t *pci_map, uint32_t mpic) +static uint32_t *pci_map_create(void *fdt, uint32_t mpic, int first_slot, + int nr_slots, int *len) { - int i; - const uint32_t tmp[] = { - /* IDSEL 0x11 J17 Slot 1 */ - 0x8800, 0x0, 0x0, 0x1, mpic, 0x2, 0x1, - 0x8800, 0x0, 0x0, 0x2, mpic, 0x3, 0x1, - 0x8800, 0x0, 0x0, 0x3, mpic, 0x4, 0x1, - 0x8800, 0x0, 0x0, 0x4, mpic, 0x1, 0x1, - - /* IDSEL 0x12 J16 Slot 2 */ - 0x9000, 0x0, 0x0, 0x1, mpic, 0x3, 0x1, - 0x9000, 0x0, 0x0, 0x2, mpic, 0x4, 0x1, - 0x9000, 0x0, 0x0, 0x3, mpic, 0x2, 0x1, - 0x9000, 0x0, 0x0, 0x4, mpic, 0x1, 0x1, - }; - for (i = 0; i < (7 * 8); i++) { - pci_map[i] = cpu_to_be32(tmp[i]); + int i = 0; + int slot; + int pci_irq; + int last_slot = first_slot + nr_slots; + uint32_t *pci_map; + + *len = nr_slots * 4 * 7 * sizeof(uint32_t); + pci_map = g_malloc(*len); + + for (slot = first_slot; slot < last_slot; slot++) { + for (pci_irq = 0; pci_irq < 4; pci_irq++) { + pci_map[i++] = cpu_to_be32(slot << 11); + pci_map[i++] = cpu_to_be32(0x0); + pci_map[i++] = cpu_to_be32(0x0); + pci_map[i++] = cpu_to_be32(pci_irq + 1); + pci_map[i++] = cpu_to_be32(mpic); + pci_map[i++] = cpu_to_be32(((pci_irq + slot) % 4) + 1); + pci_map[i++] = cpu_to_be32(0x1); + } } + + assert((i * sizeof(uint32_t)) == *len); + + return pci_map; } static void dt_serial_create(void *fdt, unsigned long long offset, @@ -132,7 +140,8 @@ static int ppce500_load_device_tree(CPUPPCState *env, char gutil[128]; char pci[128]; char msi[128]; - uint32_t pci_map[7 * 8]; + uint32_t *pci_map = NULL; + int len; uint32_t pci_ranges[14] = { 0x2000000, 0x0, 0xc0000000, @@ -329,8 +338,9 @@ static int ppce500_load_device_tree(CPUPPCState *env, qemu_devtree_setprop_string(fdt, pci, "device_type", "pci"); qemu_devtree_setprop_cells(fdt, pci, "interrupt-map-mask", 0xf800, 0x0, 0x0, 0x7); - pci_map_create(fdt, pci_map, qemu_devtree_get_phandle(fdt, mpic)); - qemu_devtree_setprop(fdt, pci, "interrupt-map", pci_map, sizeof(pci_map)); + pci_map = pci_map_create(fdt, qemu_devtree_get_phandle(fdt, mpic), + 0x11, 2, &len); + qemu_devtree_setprop(fdt, pci, "interrupt-map", pci_map, len); qemu_devtree_setprop_phandle(fdt, pci, "interrupt-parent", mpic); qemu_devtree_setprop_cells(fdt, pci, "interrupts", 24, 2); qemu_devtree_setprop_cells(fdt, pci, "bus-range", 0, 255); @@ -364,6 +374,7 @@ done: ret = fdt_size; out: + g_free(pci_map); return ret; } -- cgit v1.2.1