Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Alpha DP264/CLIPPER hardware system emulator. |
| 3 | * |
| 4 | * Choose CLIPPER IRQ mappings over, say, DP264, MONET, or WEBBRICK |
Dong Xu Wang | 66a0a2c | 2011-11-29 16:52:39 +0800 | [diff] [blame] | 5 | * variants because CLIPPER doesn't have an SMC669 SuperIO controller |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 6 | * that we need to emulate as well. |
| 7 | */ |
| 8 | |
Peter Maydell | e2e5e11 | 2016-01-26 18:17:04 +0000 | [diff] [blame] | 9 | #include "qemu/osdep.h" |
Paolo Bonzini | 4771d75 | 2016-01-19 21:51:44 +0100 | [diff] [blame] | 10 | #include "qemu-common.h" |
| 11 | #include "cpu.h" |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 12 | #include "elf.h" |
Paolo Bonzini | 83c9f4c | 2013-02-04 15:40:22 +0100 | [diff] [blame] | 13 | #include "hw/loader.h" |
Paolo Bonzini | 47b43a1 | 2013-03-18 17:36:02 +0100 | [diff] [blame] | 14 | #include "alpha_sys.h" |
Markus Armbruster | c525436 | 2015-12-17 17:35:09 +0100 | [diff] [blame] | 15 | #include "qemu/error-report.h" |
Philippe Mathieu-Daudé | bcdb906 | 2019-10-04 01:03:53 +0200 | [diff] [blame] | 16 | #include "hw/rtc/mc146818rtc.h" |
Mark Cave-Ayland | 2529791 | 2020-03-07 09:13:12 +0000 | [diff] [blame] | 17 | #include "hw/ide/pci.h" |
Paolo Bonzini | 0d09e41 | 2013-02-05 17:06:20 +0100 | [diff] [blame] | 18 | #include "hw/timer/i8254.h" |
Philippe Mathieu-Daudé | a4cb773 | 2018-03-08 23:39:45 +0100 | [diff] [blame] | 19 | #include "hw/isa/superio.h" |
Philippe Mathieu-Daudé | f4564fc0 | 2018-03-08 23:39:44 +0100 | [diff] [blame] | 20 | #include "hw/dma/i8257.h" |
Paolo Bonzini | 852c27e | 2019-12-12 17:15:43 +0100 | [diff] [blame] | 21 | #include "net/net.h" |
Veronia Bahaa | f348b6d | 2016-03-20 19:16:19 +0200 | [diff] [blame] | 22 | #include "qemu/cutils.h" |
Paolo Bonzini | 2c65db5 | 2020-10-28 07:36:57 -0400 | [diff] [blame] | 23 | #include "qemu/datadir.h" |
Philippe Mathieu-Daudé | b58337f | 2020-02-28 12:46:39 +0100 | [diff] [blame] | 24 | #include "net/net.h" |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 25 | |
| 26 | #define MAX_IDE_BUS 2 |
| 27 | |
| 28 | static uint64_t cpu_alpha_superpage_to_phys(void *opaque, uint64_t addr) |
| 29 | { |
| 30 | if (((addr >> 41) & 3) == 2) { |
| 31 | addr &= 0xffffffffffull; |
| 32 | } |
| 33 | return addr; |
| 34 | } |
| 35 | |
| 36 | /* Note that there are at least 3 viewpoints of IRQ numbers on Alpha systems. |
| 37 | (0) The dev_irq_n lines into the cpu, which we totally ignore, |
| 38 | (1) The DRIR lines in the typhoon chipset, |
| 39 | (2) The "vector" aka mangled interrupt number reported by SRM PALcode, |
| 40 | (3) The interrupt number assigned by the kernel. |
| 41 | The following function is concerned with (1) only. */ |
| 42 | |
| 43 | static int clipper_pci_map_irq(PCIDevice *d, int irq_num) |
| 44 | { |
| 45 | int slot = d->devfn >> 3; |
| 46 | |
| 47 | assert(irq_num >= 0 && irq_num <= 3); |
| 48 | |
| 49 | return (slot + 1) * 4 + irq_num; |
| 50 | } |
| 51 | |
Marcel Apfelbaum | 3ef9622 | 2014-05-07 17:42:57 +0300 | [diff] [blame] | 52 | static void clipper_init(MachineState *machine) |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 53 | { |
Marcel Apfelbaum | 3ef9622 | 2014-05-07 17:42:57 +0300 | [diff] [blame] | 54 | ram_addr_t ram_size = machine->ram_size; |
Marcel Apfelbaum | 3ef9622 | 2014-05-07 17:42:57 +0300 | [diff] [blame] | 55 | const char *kernel_filename = machine->kernel_filename; |
| 56 | const char *kernel_cmdline = machine->kernel_cmdline; |
| 57 | const char *initrd_filename = machine->initrd_filename; |
Andreas Färber | ad60117 | 2012-10-16 02:45:53 +0200 | [diff] [blame] | 58 | AlphaCPU *cpus[4]; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 59 | PCIBus *pci_bus; |
BALATON Zoltan | be1765f | 2020-03-17 16:05:37 +0100 | [diff] [blame] | 60 | PCIDevice *pci_dev; |
Hervé Poussineau | 48a18b3 | 2011-12-15 22:09:51 +0100 | [diff] [blame] | 61 | ISABus *isa_bus; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 62 | qemu_irq rtc_irq; |
| 63 | long size, i; |
Shannon Zhao | c18f855 | 2015-05-28 20:39:42 +0800 | [diff] [blame] | 64 | char *palcode_filename; |
BALATON Zoltan | 617160c | 2020-07-05 19:22:11 +0200 | [diff] [blame] | 65 | uint64_t palcode_entry; |
| 66 | uint64_t kernel_entry, kernel_low; |
Like Xu | 33decbd | 2019-05-19 04:54:27 +0800 | [diff] [blame] | 67 | unsigned int smp_cpus = machine->smp.cpus; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 68 | |
| 69 | /* Create up to 4 cpus. */ |
| 70 | memset(cpus, 0, sizeof(cpus)); |
| 71 | for (i = 0; i < smp_cpus; ++i) { |
Igor Mammedov | fb92da8 | 2017-10-05 15:50:39 +0200 | [diff] [blame] | 72 | cpus[i] = ALPHA_CPU(cpu_create(machine->cpu_type)); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 73 | } |
| 74 | |
Andreas Färber | ad60117 | 2012-10-16 02:45:53 +0200 | [diff] [blame] | 75 | cpus[0]->env.trap_arg0 = ram_size; |
| 76 | cpus[0]->env.trap_arg1 = 0; |
| 77 | cpus[0]->env.trap_arg2 = smp_cpus; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 78 | |
| 79 | /* Init the chipset. */ |
Igor Mammedov | b844d82 | 2020-02-19 11:08:42 -0500 | [diff] [blame] | 80 | pci_bus = typhoon_init(machine->ram, &isa_bus, &rtc_irq, cpus, |
Hervé Poussineau | 71baa30 | 2011-12-15 22:09:55 +0100 | [diff] [blame] | 81 | clipper_pci_map_irq); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 82 | |
Richard Henderson | e605e96 | 2013-07-13 17:23:37 -0700 | [diff] [blame] | 83 | /* Since we have an SRM-compatible PALcode, use the SRM epoch. */ |
Philippe Mathieu-Daudé | 6c646a1 | 2017-10-17 13:44:16 -0300 | [diff] [blame] | 84 | mc146818_rtc_init(isa_bus, 1900, rtc_irq); |
Richard Henderson | e605e96 | 2013-07-13 17:23:37 -0700 | [diff] [blame] | 85 | |
Philippe Mathieu-Daudé | acf695e | 2017-10-17 13:44:15 -0300 | [diff] [blame] | 86 | i8254_pit_init(isa_bus, 0x40, 0, NULL); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 87 | |
| 88 | /* VGA setup. Don't bother loading the bios. */ |
Aurelien Jarno | 606f90c | 2012-09-08 12:16:28 +0200 | [diff] [blame] | 89 | pci_vga_init(pci_bus); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 90 | |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 91 | /* Network setup. e1000 is good enough, failing Tulip support. */ |
| 92 | for (i = 0; i < nb_nics; i++) { |
David Gibson | 29b358f | 2013-06-06 18:48:51 +1000 | [diff] [blame] | 93 | pci_nic_init_nofail(&nd_table[i], pci_bus, "e1000", NULL); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 94 | } |
| 95 | |
Philippe Mathieu-Daudé | f4564fc0 | 2018-03-08 23:39:44 +0100 | [diff] [blame] | 96 | /* 2 82C37 (dma) */ |
| 97 | isa_create_simple(isa_bus, "i82374"); |
| 98 | |
Philippe Mathieu-Daudé | a4cb773 | 2018-03-08 23:39:45 +0100 | [diff] [blame] | 99 | /* Super I/O */ |
| 100 | isa_create_simple(isa_bus, TYPE_SMC37C669_SUPERIO); |
| 101 | |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 102 | /* IDE disk setup. */ |
BALATON Zoltan | be1765f | 2020-03-17 16:05:37 +0100 | [diff] [blame] | 103 | pci_dev = pci_create_simple(pci_bus, -1, "cmd646-ide"); |
| 104 | pci_ide_create_devs(pci_dev); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 105 | |
| 106 | /* Load PALcode. Given that this is not "real" cpu palcode, |
| 107 | but one explicitly written for the emulation, we might as |
| 108 | well load it directly from and ELF image. */ |
Shannon Zhao | c18f855 | 2015-05-28 20:39:42 +0800 | [diff] [blame] | 109 | palcode_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, |
Paolo Bonzini | 2c4a83e | 2020-10-26 10:30:14 -0400 | [diff] [blame] | 110 | machine->firmware ?: "palcode-clipper"); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 111 | if (palcode_filename == NULL) { |
Markus Armbruster | c525436 | 2015-12-17 17:35:09 +0100 | [diff] [blame] | 112 | error_report("no palcode provided"); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 113 | exit(1); |
| 114 | } |
Liam Merwick | 4366e1d | 2019-01-15 12:18:03 +0000 | [diff] [blame] | 115 | size = load_elf(palcode_filename, NULL, cpu_alpha_superpage_to_phys, |
BALATON Zoltan | 617160c | 2020-07-05 19:22:11 +0200 | [diff] [blame] | 116 | NULL, &palcode_entry, NULL, NULL, NULL, |
Peter Crosthwaite | 7ef295e | 2016-03-04 11:30:21 +0000 | [diff] [blame] | 117 | 0, EM_ALPHA, 0, 0); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 118 | if (size < 0) { |
Markus Armbruster | c525436 | 2015-12-17 17:35:09 +0100 | [diff] [blame] | 119 | error_report("could not load palcode '%s'", palcode_filename); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 120 | exit(1); |
| 121 | } |
Shannon Zhao | c18f855 | 2015-05-28 20:39:42 +0800 | [diff] [blame] | 122 | g_free(palcode_filename); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 123 | |
| 124 | /* Start all cpus at the PALcode RESET entry point. */ |
| 125 | for (i = 0; i < smp_cpus; ++i) { |
Andreas Färber | ad60117 | 2012-10-16 02:45:53 +0200 | [diff] [blame] | 126 | cpus[i]->env.pc = palcode_entry; |
| 127 | cpus[i]->env.palbr = palcode_entry; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 128 | } |
| 129 | |
| 130 | /* Load a kernel. */ |
| 131 | if (kernel_filename) { |
| 132 | uint64_t param_offset; |
| 133 | |
Liam Merwick | 4366e1d | 2019-01-15 12:18:03 +0000 | [diff] [blame] | 134 | size = load_elf(kernel_filename, NULL, cpu_alpha_superpage_to_phys, |
BALATON Zoltan | 617160c | 2020-07-05 19:22:11 +0200 | [diff] [blame] | 135 | NULL, &kernel_entry, &kernel_low, NULL, NULL, |
Peter Crosthwaite | 7ef295e | 2016-03-04 11:30:21 +0000 | [diff] [blame] | 136 | 0, EM_ALPHA, 0, 0); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 137 | if (size < 0) { |
Markus Armbruster | c525436 | 2015-12-17 17:35:09 +0100 | [diff] [blame] | 138 | error_report("could not load kernel '%s'", kernel_filename); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 139 | exit(1); |
| 140 | } |
| 141 | |
Andreas Färber | ad60117 | 2012-10-16 02:45:53 +0200 | [diff] [blame] | 142 | cpus[0]->env.trap_arg1 = kernel_entry; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 143 | |
| 144 | param_offset = kernel_low - 0x6000; |
| 145 | |
| 146 | if (kernel_cmdline) { |
| 147 | pstrcpy_targphys("cmdline", param_offset, 0x100, kernel_cmdline); |
| 148 | } |
| 149 | |
| 150 | if (initrd_filename) { |
Li Zhijian | f3839fd | 2018-09-13 18:07:13 +0800 | [diff] [blame] | 151 | long initrd_base; |
| 152 | int64_t initrd_size; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 153 | |
| 154 | initrd_size = get_image_size(initrd_filename); |
| 155 | if (initrd_size < 0) { |
Markus Armbruster | c525436 | 2015-12-17 17:35:09 +0100 | [diff] [blame] | 156 | error_report("could not load initial ram disk '%s'", |
| 157 | initrd_filename); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 158 | exit(1); |
| 159 | } |
| 160 | |
| 161 | /* Put the initrd image as high in memory as possible. */ |
| 162 | initrd_base = (ram_size - initrd_size) & TARGET_PAGE_MASK; |
| 163 | load_image_targphys(initrd_filename, initrd_base, |
| 164 | ram_size - initrd_base); |
| 165 | |
Peter Maydell | 42874d3 | 2015-04-26 16:49:24 +0100 | [diff] [blame] | 166 | address_space_stq(&address_space_memory, param_offset + 0x100, |
| 167 | initrd_base + 0xfffffc0000000000ULL, |
| 168 | MEMTXATTRS_UNSPECIFIED, |
| 169 | NULL); |
| 170 | address_space_stq(&address_space_memory, param_offset + 0x108, |
| 171 | initrd_size, MEMTXATTRS_UNSPECIFIED, NULL); |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
Eduardo Habkost | e264d29 | 2015-09-04 15:37:08 -0300 | [diff] [blame] | 176 | static void clipper_machine_init(MachineClass *mc) |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 177 | { |
Eduardo Habkost | e264d29 | 2015-09-04 15:37:08 -0300 | [diff] [blame] | 178 | mc->desc = "Alpha DP264/CLIPPER"; |
| 179 | mc->init = clipper_init; |
Markus Armbruster | 2059839 | 2017-02-15 11:05:40 +0100 | [diff] [blame] | 180 | mc->block_default_type = IF_IDE; |
Eduardo Habkost | e264d29 | 2015-09-04 15:37:08 -0300 | [diff] [blame] | 181 | mc->max_cpus = 4; |
Philippe Mathieu-Daudé | ea0ac7f | 2020-02-07 17:19:47 +0100 | [diff] [blame] | 182 | mc->is_default = true; |
Igor Mammedov | fb92da8 | 2017-10-05 15:50:39 +0200 | [diff] [blame] | 183 | mc->default_cpu_type = ALPHA_CPU_TYPE_NAME("ev67"); |
Igor Mammedov | b844d82 | 2020-02-19 11:08:42 -0500 | [diff] [blame] | 184 | mc->default_ram_id = "ram"; |
Richard Henderson | 80bb2ff | 2011-08-25 11:38:59 -1000 | [diff] [blame] | 185 | } |
| 186 | |
Eduardo Habkost | e264d29 | 2015-09-04 15:37:08 -0300 | [diff] [blame] | 187 | DEFINE_MACHINE("clipper", clipper_machine_init) |