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-rw-r--r--src/bootinfos.c282
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diff --git a/src/bootinfos.c b/src/bootinfos.c
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+++ b/src/bootinfos.c
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+/*
+ * <bootinfos.c>
+ *
+ * Generate boot informations (bootinfos for Linux and residual data).
+ *
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License V2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdlib.h>
+#include "bios.h"
+
+#define BI_FIRST 0x1010 /* first record - marker */
+#define BI_LAST 0x1011 /* last record - marker */
+#define BI_CMD_LINE 0x1012
+#define BI_BOOTLOADER_ID 0x1013
+#define BI_INITRD 0x1014
+#define BI_SYSMAP 0x1015
+#define BI_MACHTYPE 0x1016
+#define BI_MEMSIZE 0x1017
+#define BI_BOARD_INFO 0x1018
+
+static inline void put_long (void *addr, uint32_t l)
+{
+ char *pos = addr;
+ pos[0] = (l >> 24) & 0xFF;
+ pos[1] = (l >> 16) & 0xFF;
+ pos[2] = (l >> 8) & 0xFF;
+ pos[3] = l & 0xFF;
+}
+
+static void *set_bootinfo_tag (void *addr, uint32_t tag, uint32_t size,
+ void *data)
+{
+ char *pos = addr;
+
+ put_long(pos, tag);
+ pos += 4;
+ put_long(pos, size + 8);
+ pos += 4;
+ memcpy(pos, data, size);
+ pos += size;
+
+ return pos;
+}
+
+void prepare_bootinfos (void *p, uint32_t memsize,
+ void *cmdline, void *initrd, uint32_t initrd_size)
+{
+ uint32_t tmpi[2];
+
+ /* BI_FIRST */
+ p = set_bootinfo_tag(p, BI_FIRST, 0, NULL);
+ /* BI_CMD_LINE */
+ if (cmdline != 0) {
+ p = set_bootinfo_tag(p, BI_CMD_LINE, strlen(cmdline), cmdline);
+ } else {
+ p = set_bootinfo_tag(p, BI_CMD_LINE, 0, NULL);
+ }
+ /* BI_MEM_SIZE */
+ p = set_bootinfo_tag(p, BI_MEMSIZE, 4, &memsize);
+ /* BI_INITRD */
+ tmpi[0] = (uint32_t)initrd;
+ tmpi[1] = initrd_size;
+ p = set_bootinfo_tag(p, BI_INITRD, 8, tmpi);
+ /* BI_LAST */
+ p = set_bootinfo_tag(p, BI_LAST, 0, 0);
+}
+
+/* Residual data */
+#define MAX_CPUS 16
+#define MAX_SEGS 64
+#define MAX_MEMS 64
+#define MAX_DEVS 256
+
+typedef struct vital_t {
+ /* Motherboard dependents */
+ uint8_t model[32];
+ uint8_t serial[64];
+ uint16_t version;
+ uint16_t revision;
+ uint32_t firmware;
+ uint32_t NVRAM_size;
+ uint32_t nSIMMslots;
+ uint32_t nISAslots;
+ uint32_t nPCIslots;
+ uint32_t nPCMCIAslots;
+ uint32_t nMCAslots;
+ uint32_t nEISAslots;
+ uint32_t CPUHz;
+ uint32_t busHz;
+ uint32_t PCIHz;
+ uint32_t TBdiv;
+ /* CPU infos */
+ uint32_t wwidth;
+ uint32_t page_size;
+ uint32_t ChBlocSize;
+ uint32_t GrSize;
+ /* Cache and TLBs */
+ uint32_t cache_size;
+ uint32_t cache_type;
+ uint32_t cache_assoc;
+ uint32_t cache_lnsize;
+ uint32_t Icache_size;
+ uint32_t Icache_assoc;
+ uint32_t Icache_lnsize;
+ uint32_t Dcache_size;
+ uint32_t Dcache_assoc;
+ uint32_t Dcache_lnsize;
+ uint32_t TLB_size;
+ uint32_t TLB_type;
+ uint32_t TLB_assoc;
+ uint32_t ITLB_size;
+ uint32_t ITLB_assoc;
+ uint32_t DTLB_size;
+ uint32_t DTLB_assoc;
+ void *ext_vital;
+} vital_t;
+
+typedef struct PPC_CPU_t {
+ uint32_t pvr;
+ uint32_t serial;
+ uint32_t L2_size;
+ uint32_t L2_assoc;
+} PPC_CPU_t;
+
+typedef struct map_t {
+ uint32_t usage;
+ uint32_t base;
+ uint32_t count;
+} map_t;
+
+typedef struct PPC_mem_t {
+ uint32_t size;
+} PPC_mem_t;
+
+typedef struct PPC_device_t {
+ uint32_t busID;
+ uint32_t devID;
+ uint32_t serial;
+ uint32_t flags;
+ uint32_t type;
+ uint32_t subtype;
+ uint32_t interface;
+ uint32_t spare;
+} PPC_device_t;
+
+typedef struct residual_t {
+ uint32_t length;
+ uint16_t version;
+ uint16_t revision;
+ vital_t vital;
+ uint32_t nCPUs;
+ PPC_CPU_t CPUs[MAX_CPUS];
+ uint32_t max_mem;
+ uint32_t good_mem;
+ uint32_t nmaps;
+ map_t maps[MAX_SEGS];
+ uint32_t nmems;
+ PPC_mem_t memories[MAX_MEMS];
+ uint32_t ndevices;
+ PPC_device_t devices[MAX_DEVS];
+ /* TOFIX: No PNP devices */
+} residual_t;
+
+void residual_build (void *p, uint32_t memsize,
+ uint32_t load_base, uint32_t load_size,
+ uint32_t last_alloc)
+{
+ const unsigned char model[] = "Qemu\0PPC\0";
+ residual_t *res = p;
+ int i;
+
+ if (res == NULL)
+ return;
+ res->length = sizeof(residual_t);
+ res->version = 1;
+ res->revision = 0;
+ memcpy(res->vital.model, model, sizeof(model));
+ res->vital.version = 1;
+ res->vital.revision = 0;
+ res->vital.firmware = 0x1D1;
+ res->vital.NVRAM_size = 0x2000;
+ res->vital.nSIMMslots = 1;
+ res->vital.nISAslots = 0;
+ res->vital.nPCIslots = 0;
+ res->vital.nPCMCIAslots = 0;
+ res->vital.nMCAslots = 0;
+ res->vital.nEISAslots = 0;
+ res->vital.CPUHz = 200 * 1000 * 1000;
+ res->vital.busHz = 100 * 1000 * 1000;
+ res->vital.PCIHz = 33 * 1000 * 1000;
+ res->vital.TBdiv = 1000;
+ res->vital.wwidth = 32;
+ res->vital.page_size = 4096;
+ res->vital.ChBlocSize = 32;
+ res->vital.GrSize = 32;
+ res->vital.cache_size = 0;
+ res->vital.cache_type = 0; /* No cache */
+ res->vital.cache_assoc = 8; /* Same as 601 */
+ res->vital.cache_lnsize = 32;
+ res->vital.Icache_size = 0;
+ res->vital.Icache_assoc = 8;
+ res->vital.Icache_lnsize = 32;
+ res->vital.Dcache_size = 0;
+ res->vital.Dcache_assoc = 8;
+ res->vital.Dcache_lnsize = 32;
+ res->vital.TLB_size = 0;
+ res->vital.TLB_type = 0; /* None */
+ res->vital.TLB_assoc = 2;
+ res->vital.ITLB_size = 0;
+ res->vital.ITLB_assoc = 2;
+ res->vital.DTLB_size = 0;
+ res->vital.DTLB_assoc = 2;
+ res->vital.ext_vital = NULL;
+ res->nCPUs = 1;
+ res->CPUs[0].pvr = mfpvr();
+ res->CPUs[0].serial = 0;
+ res->CPUs[0].L2_size = 0;
+ res->CPUs[0].L2_assoc = 8;
+ /* Memory infos */
+ res->max_mem = memsize;
+ res->good_mem = memsize;
+ /* Memory mappings */
+ /* First segment: firmware */
+ last_alloc = (last_alloc + 4095) & ~4095;
+ res->maps[0].usage = 0x0007;
+ res->maps[0].base = 0x00000000;
+ res->maps[0].count = last_alloc >> 12;
+ i = 1;
+ if (last_alloc != load_base) {
+ /* Free memory between firmware and boot image */
+ res->maps[1].usage = 0x0010;
+ res->maps[1].base = last_alloc >> 12;
+ res->maps[1].count = (load_base - last_alloc) >> 12;
+ i++;
+ }
+ /* Boot image */
+ load_size = (load_size + 4095) & ~4095;
+ res->maps[i].usage = 0x0008;
+ res->maps[i].base = load_base >> 12;
+ res->maps[i].count = load_size >> 12;
+ i++;
+ /* Free memory */
+ res->maps[i].usage = 0x0010;
+ res->maps[i].base = (load_base + load_size) >> 12;
+ res->maps[i].count = (memsize >> 12) - res->maps[i].base;
+ i++;
+ /* ISA IO region : 8MB */
+ res->maps[i].usage = 0x0040;
+ res->maps[i].base = 0x80000000 >> 12;
+ res->maps[i].count = 0x00800000 >> 12;
+ i++;
+ /* System registers : 8MB */
+ res->maps[i].usage = 0x0200;
+ res->maps[i].base = 0xBF800000 >> 12;
+ res->maps[i].count = 0x00800000 >> 12;
+ i++;
+ /* System ROM : 64 kB */
+ res->maps[i].usage = 0x2000;
+ res->maps[i].base = 0xFFFF0000 >> 12;
+ res->maps[i].count = 0x00010000 >> 12;
+ i++;
+ res->nmaps = i;
+ /* Memory SIMMs */
+ res->nmems = 1;
+ res->memories[0].size = memsize;
+ /* Describe no devices */
+ res->ndevices = 0;
+}
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