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++ trunk/HISTORY (local)
$Id: HISTORY,v 1.1613 2007/06/15 20:11:26 debug Exp $
20070501 Continuing a little on m88k disassembly (control registers,
more instructions).
Adding a dummy mvme88k machine mode.
20070502 Re-adding MIPS load/store alignment exceptions.
20070503 Implementing more of the M88K disassembly code.
20070504 Adding disassembly of some more M88K load/store instructions.
Implementing some relatively simple M88K instructions (br.n,
xor[.u] imm, and[.u] imm).
20070505 Implementing M88K three-register and, or, xor, and jmp[.n],
bsr[.n] including function call trace stuff.
Applying a patch from Bruce M. Simpson which implements the
SYSCON_BOARD_CPU_CLOCK_FREQ_ID object of the syscon call in
the yamon PROM emulation.
20070506 Implementing M88K bb0[.n] and bb1[.n], and skeletons for
ldcr and stcr (although no control regs are implemented yet).
20070509 Found and fixed the bug which caused Linux for QEMU_MIPS to
stop working in 0.4.5.1: It was a faulty change to the MIPS
'sc' and 'scd' instructions I made while going through gcc -W
warnings on 20070428.
20070510 Updating the Linux/QEMU_MIPS section in guestoses.html to
use mips-test-0.2.tar.gz instead of 0.1.
A big thank you to Miod Vallat for sending me M88K manuals.
Implementing more M88K instructions (addu, subu, div[u], mulu,
ext[u], clr, set, cmp).
20070511 Fixing bugs in the M88K "and" and "and.u" instructions (found
by comparing against the manual).
Implementing more M88K instructions (mask[.u], mak, bcnd (auto-
generated)) and some more control register details.
Cleanup: Removing the experimental AVR emulation mode and
corresponding devices; AVR emulation wasn't really meaningful.
Implementing autogeneration of most M88K loads/stores. The
rectangle drawing demo (with -O0) for M88K runs :-)
Beginning on M88K exception handling.
More M88K instructions: tb0, tb1, rte, sub, jsr[.n].
Adding some skeleton MVME PROM ("BUG") emulation.
20070512 Fixing a bug in the M88K cmp instruction.
Adding the M88K lda (scaled register) instruction.
Fixing bugs in 64-bit (32-bit pairs) M88K loads/stores.
Removing the unused tick_hz stuff from the machine struct.
Implementing the M88K xmem instruction. OpenBSD/mvme88k gets
far enough to display the Copyright banner :-)
Implementing subu.co (guess), addu.co, addu.ci, ff0, and ff1.
Adding a dev_mvme187, for MVME187-specific devices/registers.
OpenBSD/mvme88k prints more boot messages. :)
20070515 Continuing on MVME187 emulation (adding more devices, beginning
on the CMMUs, etc).
Adding the M88K and.c, xor.c, and or.c instructions, and making
sure that mul, div, etc cause exceptions if executed when SFD1
is disabled.
20070517 Continuing on M88K and MVME187 emulation in general; moving
the CMMU registers to the CPU struct, separating dev_pcc2 from
dev_mvme187, and beginning on memory_m88k.c (BATC and PATC).
Fixing a bug in 64-bit (32-bit pairs) M88K fast stores.
Implementing the clock part of dev_mk48txx.
Implementing the M88K fstcr and xcr instructions.
Implementing m88k_cpu_tlbdump().
Beginning on the implementation of a separate address space
for M88K .usr loads/stores.
20070520 Removing the non-working (skeleton) Sandpoint, SonyNEWS, SHARK
Dnard, and Zaurus machine modes.
Experimenting with dyntrans to_be_translated read-ahead. It
seems to give a very small performance increase for MIPS
emulation, but a large performance degradation for SuperH. Hm.
20070522 Disabling correct SuperH ITLB emulation; it does not seem to be
necessary in order to let SH4 guest OSes run, and it slows down
userspace code.
Implementing "samepage" branches for SuperH emulation, and some
other minor speed hacks.
20070525 Continuing on M88K memory-related stuff: exceptions, memory
transaction register contents, etc.
Implementing the M88K subu.ci instruction.
Removing the non-working (skeleton) Iyonix machine mode.
OpenBSD/mvme88k reaches userland :-), starts executing
/sbin/init's instructions, and issues a few syscalls, before
crashing.
20070526 Fixing bugs in dev_mk48txx, so that OpenBSD/mvme88k detects
the correct time-of-day.
Implementing a generic IRQ controller for the test machines
(dev_irqc), similar to a proposed patch from Petr Stepan.
Experimenting some more with translation read-ahead.
Adding an "expect" script for automated OpenBSD/landisk
install regression/performance tests.
20070527 Adding a dummy mmEye (SH3) machine mode skeleton.
FINALLY found the strange M88K bug I have been hunting: I had
not emulated the SNIP value for exceptions occurring in
branch delay slots correctly.
Implementing correct exceptions for 64-bit M88K loads/stores.
Address to symbol lookups are now disabled when M88K is
running in usermode (because usermode addresses don't have
anything to do with supervisor addresses).
20070531 Removing the mmEye machine mode skeleton.
20070604 Some minor code cleanup.
20070605 Moving src/useremul.c into a subdir (src/useremul/), and
cleaning up some more legacy constructs.
Adding -Wstrict-aliasing and -fstrict-aliasing detection to
the configure script.
20070606 Adding a check for broken GCC on Solaris to the configure
script. (GCC 3.4.3 on Solaris cannot handle static variables
which are initialized to 0 or NULL. :-/)
Removing the old (non-working) ARC emulation modes: NEC RD94,
R94, R96, and R98, and the last traces of Olivetti M700 and
Deskstation Tyne.
Removing the non-working skeleton WDSC device (dev_wdsc).
20070607 Thinking about how to use the host's cc + ld at runtime to
generate native code. (See experiments/native_cc_ld_test.i
for an example.)
20070608 Adding a program counter sampling timer, which could be useful
for native code generation experiments.
The KN02_CSR_NRMMOD bit in the DECstation 5000/200 (KN02) CSR
should always be set, to allow a 5000/200 PROM to boot.
20070609 Moving out breakpoint details from the machine struct into
a helper struct, and removing the limit on max nr of
breakpoints.
20070610 Moving out tick functions into a helper struct as well (which
also gets rid of the max limit).
20070612 FINALLY figured out why Debian/DECstation stopped working when
translation read-ahead was enabled: in src/memory_rw.c, the
call to invalidate_code_translation was made also if the
memory access was an instruction load (if the page was mapped
as writable); it shouldn't be called in that case.
20070613 Implementing some more MIPS32/64 revision 2 instructions: di,
ei, ext, dext, dextm, dextu, and ins.
20070614 Implementing an instruction combination for the NetBSD/arm
idle loop (making the host not use any cpu if NetBSD/arm
inside the emulator is not using any cpu).
Increasing the nr of ARM VPH entries from 128 to 384.
20070615 Removing the ENABLE_arch stuff from the configure script, so
that all included architectures are included in both release
and development builds.
Moving memory related helper functions from misc.c to memory.c.
Adding preliminary instructions for netbooting NetBSD/pmppc to
guestoses.html; it doesn't work yet, there are weird timeouts.
Beginning a total rewrite of the userland emulation modes
(removing all emulation modes, beginning from scratch with
NetBSD/MIPS and FreeBSD/Alpha only).
20070616 After fixing a bug in the DEC21143 NIC (the TDSTAT_OWN bit was
only cleared for the last segment when transmitting, not all
segments), NetBSD/pmppc boots with root-on-nfs without the
timeouts. Updating guestoses.html.
Removing the skeleton PSP (Playstation Portable) mode.
Moving X11-related stuff in the machine struct into a helper
struct.
Cleanup of out-of-memory checks, to use a new CHECK_ALLOCATION
macro (which prints a meaningful error message).
Adding a COMMENT to each machine and device (for automagic
.index comment generation).
Doing regression testing for the next release.
============== RELEASE 0.4.6 ==============
| 1 | dpavlin | 20 | /* |
| 2 | dpavlin | 34 | * Copyright (C) 2004-2007 Anders Gavare. All rights reserved. |
| 3 | dpavlin | 20 | * |
| 4 | * Redistribution and use in source and binary forms, with or without | ||
| 5 | * modification, are permitted provided that the following conditions are met: | ||
| 6 | * | ||
| 7 | * 1. Redistributions of source code must retain the above copyright | ||
| 8 | * notice, this list of conditions and the following disclaimer. | ||
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 10 | * notice, this list of conditions and the following disclaimer in the | ||
| 11 | * documentation and/or other materials provided with the distribution. | ||
| 12 | * 3. The name of the author may not be used to endorse or promote products | ||
| 13 | * derived from this software without specific prior written permission. | ||
| 14 | * | ||
| 15 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | ||
| 16 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 19 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 20 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 21 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 22 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 23 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 24 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 25 | * SUCH DAMAGE. | ||
| 26 | * | ||
| 27 | * | ||
| 28 | dpavlin | 42 | * $Id: dev_dec21030.c,v 1.7 2007/06/15 18:44:19 debug Exp $ |
| 29 | dpavlin | 20 | * |
| 30 | dpavlin | 42 | * COMMENT: DEC 21030 "TGA" graphics card |
| 31 | dpavlin | 20 | * |
| 32 | * Resolutions that seem to be possible: 640x480, 1024x768, 1280x1024. | ||
| 33 | * 8 bits, perhaps others? (24 bit?) | ||
| 34 | * | ||
| 35 | * NetBSD should say something like this: | ||
| 36 | * | ||
| 37 | * tga0 at pci0 dev 12 function 0: TGA2 pass 2, board type T8-02 | ||
| 38 | * tga0: 1280 x 1024, 8bpp, Bt485 RAMDAC | ||
| 39 | * | ||
| 40 | * See netbsd/src/sys/dev/pci/tga.c for more info. | ||
| 41 | * tga_rop_vtov() for video-to-video copy (scrolling and fast | ||
| 42 | * erasing) | ||
| 43 | * | ||
| 44 | * TODO: This device is far from complete. | ||
| 45 | * The RAMDAC is non-existant. | ||
| 46 | * | ||
| 47 | * TODO: all fb device writes with direct writes to the framebuffer | ||
| 48 | * memory, and update the x1,y1,x2,y2 coordinates instead. | ||
| 49 | * That will give better performance. | ||
| 50 | */ | ||
| 51 | |||
| 52 | #include <stdio.h> | ||
| 53 | #include <stdlib.h> | ||
| 54 | #include <string.h> | ||
| 55 | |||
| 56 | #include "device.h" | ||
| 57 | #include "devices.h" | ||
| 58 | #include "machine.h" | ||
| 59 | #include "memory.h" | ||
| 60 | #include "misc.h" | ||
| 61 | |||
| 62 | #include "tgareg.h" | ||
| 63 | |||
| 64 | #define MAX_XSIZE 2048 | ||
| 65 | |||
| 66 | #if 1 | ||
| 67 | int dec21030_default_xsize = 640; | ||
| 68 | int dec21030_default_ysize = 480; | ||
| 69 | #else | ||
| 70 | int dec21030_default_xsize = 1024; | ||
| 71 | int dec21030_default_ysize = 768; | ||
| 72 | #endif | ||
| 73 | |||
| 74 | |||
| 75 | /* TODO: Ugly hack: this causes the framebuffer to be in memory */ | ||
| 76 | #define FRAMEBUFFER_PADDR 0x4000000000ULL | ||
| 77 | #define FRAMEBUFFER_BASE 0x201000 | ||
| 78 | |||
| 79 | |||
| 80 | struct dec21030_data { | ||
| 81 | int graphics_mode; | ||
| 82 | uint32_t pixel_mask; | ||
| 83 | uint32_t copy_source; | ||
| 84 | uint32_t color; | ||
| 85 | struct vfb_data *vfb_data; | ||
| 86 | }; | ||
| 87 | |||
| 88 | |||
| 89 | dpavlin | 22 | DEVICE_ACCESS(dec21030) |
| 90 | dpavlin | 20 | { |
| 91 | struct dec21030_data *d = extra; | ||
| 92 | uint64_t idata, odata = 0; | ||
| 93 | dpavlin | 22 | int reg, r, white = 255, black = 0; |
| 94 | size_t i, newlen; | ||
| 95 | dpavlin | 20 | unsigned char buf2[MAX_XSIZE]; |
| 96 | |||
| 97 | /* Read/write to the framebuffer: */ | ||
| 98 | if (relative_addr >= FRAMEBUFFER_BASE) { | ||
| 99 | /* TODO: Perhaps this isn't graphics mode (GMOR), | ||
| 100 | but GOPR (operation) specific: */ | ||
| 101 | |||
| 102 | switch (d->graphics_mode) { | ||
| 103 | case 1: /* Bitmap write: */ | ||
| 104 | /* Copy from data into buf2: */ | ||
| 105 | for (i=0; i<len; i++) { | ||
| 106 | buf2[i*8 + 0] = data[i]&1? white : black; | ||
| 107 | buf2[i*8 + 1] = data[i]&2? white : black; | ||
| 108 | buf2[i*8 + 2] = data[i]&4? white : black; | ||
| 109 | buf2[i*8 + 3] = data[i]&8? white : black; | ||
| 110 | buf2[i*8 + 4] = data[i]&16? white : black; | ||
| 111 | buf2[i*8 + 5] = data[i]&32? white : black; | ||
| 112 | buf2[i*8 + 6] = data[i]&64? white : black; | ||
| 113 | buf2[i*8 + 7] = data[i]&128? white : black; | ||
| 114 | } | ||
| 115 | |||
| 116 | newlen = 0; | ||
| 117 | for (i=0; i<32; i++) | ||
| 118 | if (d->pixel_mask & (1 << i)) | ||
| 119 | newlen ++; | ||
| 120 | |||
| 121 | if (newlen > len * 8) | ||
| 122 | newlen = len * 8; | ||
| 123 | |||
| 124 | r = dev_fb_access(cpu, mem, relative_addr - | ||
| 125 | FRAMEBUFFER_BASE, buf2, newlen, writeflag, | ||
| 126 | d->vfb_data); | ||
| 127 | break; | ||
| 128 | case 0x2d: /* Block fill: */ | ||
| 129 | /* data is nr of pixels to fill minus one */ | ||
| 130 | newlen = memory_readmax64(cpu, data, len) + 1; | ||
| 131 | /* debug("YO addr=0x%08x, newlen=%i\n", relative_addr, | ||
| 132 | newlen); */ | ||
| 133 | if (newlen > MAX_XSIZE) | ||
| 134 | newlen = MAX_XSIZE; | ||
| 135 | memset(buf2, d->color, newlen); | ||
| 136 | r = dev_fb_access(cpu, mem, relative_addr - | ||
| 137 | FRAMEBUFFER_BASE, buf2, newlen, MEM_WRITE, | ||
| 138 | d->vfb_data); | ||
| 139 | break; | ||
| 140 | default: | ||
| 141 | r = dev_fb_access(cpu, mem, relative_addr - | ||
| 142 | FRAMEBUFFER_BASE, data, len, writeflag, | ||
| 143 | d->vfb_data); | ||
| 144 | } | ||
| 145 | return r; | ||
| 146 | } | ||
| 147 | |||
| 148 | idata = memory_readmax64(cpu, data, len); | ||
| 149 | |||
| 150 | /* Read from/write to the dec21030's registers: */ | ||
| 151 | reg = ((relative_addr - TGA_MEM_CREGS) & (TGA_CREGS_ALIAS - 1)) | ||
| 152 | / sizeof(uint32_t); | ||
| 153 | switch (reg) { | ||
| 154 | |||
| 155 | /* Color? (there are 8 of these, 2 used in 8-bit mode, | ||
| 156 | 8 in 24-bit mode) */ | ||
| 157 | case TGA_REG_GBCR0: | ||
| 158 | if (writeflag == MEM_WRITE) | ||
| 159 | d->color = idata; | ||
| 160 | else | ||
| 161 | odata = d->color; | ||
| 162 | break; | ||
| 163 | |||
| 164 | /* Board revision */ | ||
| 165 | /* case TGA_MEM_CREGS + sizeof(uint32_t) * TGA_REG_GREV: */ | ||
| 166 | case TGA_REG_GREV: | ||
| 167 | /* 01,02,03,04 (rev0) and 20,21,22 (rev1) are allowed */ | ||
| 168 | odata = 0x04; | ||
| 169 | break; | ||
| 170 | |||
| 171 | /* Graphics Mode: */ | ||
| 172 | case TGA_REG_GMOR: | ||
| 173 | if (writeflag == MEM_WRITE) | ||
| 174 | d->graphics_mode = idata; | ||
| 175 | else | ||
| 176 | odata = d->graphics_mode; | ||
| 177 | break; | ||
| 178 | |||
| 179 | /* Pixel mask: */ | ||
| 180 | case TGA_REG_GPXR_S: /* "one-shot" */ | ||
| 181 | case TGA_REG_GPXR_P: /* persistant */ | ||
| 182 | if (writeflag == MEM_WRITE) | ||
| 183 | d->pixel_mask = idata; | ||
| 184 | else | ||
| 185 | odata = d->pixel_mask; | ||
| 186 | break; | ||
| 187 | |||
| 188 | /* Horizonsal size: */ | ||
| 189 | case TGA_REG_VHCR: | ||
| 190 | odata = dec21030_default_xsize / 4; /* lowest 9 bits */ | ||
| 191 | break; | ||
| 192 | |||
| 193 | /* Vertical size: */ | ||
| 194 | case TGA_REG_VVCR: | ||
| 195 | odata = dec21030_default_ysize; /* lowest 11 bits */ | ||
| 196 | break; | ||
| 197 | |||
| 198 | /* Block copy source: */ | ||
| 199 | case TGA_REG_GCSR: | ||
| 200 | d->copy_source = idata; | ||
| 201 | debug("[ dec21030: block copy source = 0x%08x ]\n", idata); | ||
| 202 | break; | ||
| 203 | |||
| 204 | /* Block copy destination: */ | ||
| 205 | case TGA_REG_GCDR: | ||
| 206 | debug("[ dec21030: block copy destination = 0x%08x ]\n", idata); | ||
| 207 | newlen = 64; | ||
| 208 | /* Both source and destination are raw framebuffer addresses, | ||
| 209 | offset by 0x1000. */ | ||
| 210 | dev_fb_access(cpu, mem, d->copy_source - 0x1000, | ||
| 211 | buf2, newlen, MEM_READ, d->vfb_data); | ||
| 212 | dev_fb_access(cpu, mem, idata - 0x1000, | ||
| 213 | buf2, newlen, MEM_WRITE, d->vfb_data); | ||
| 214 | break; | ||
| 215 | |||
| 216 | default: | ||
| 217 | if (writeflag == MEM_WRITE) | ||
| 218 | debug("[ dec21030: unimplemented write to address" | ||
| 219 | " 0x%x (=reg 0x%x), data=0x%02x ]\n", | ||
| 220 | (int)relative_addr, reg, (int)idata); | ||
| 221 | else | ||
| 222 | debug("[ dec21030: unimplemented read from address" | ||
| 223 | " 0x%x (=reg 0x%x) ]\n", (int)relative_addr, reg); | ||
| 224 | } | ||
| 225 | |||
| 226 | if (writeflag == MEM_READ) | ||
| 227 | memory_writemax64(cpu, data, len, odata); | ||
| 228 | |||
| 229 | return 1; | ||
| 230 | } | ||
| 231 | |||
| 232 | |||
| 233 | dpavlin | 22 | DEVINIT(dec21030) |
| 234 | dpavlin | 20 | { |
| 235 | struct dec21030_data *d; | ||
| 236 | |||
| 237 | dpavlin | 42 | CHECK_ALLOCATION(d = malloc(sizeof(struct dec21030_data))); |
| 238 | dpavlin | 20 | memset(d, 0, sizeof(struct dec21030_data)); |
| 239 | |||
| 240 | memory_device_register(devinit->machine->memory, devinit->name, | ||
| 241 | devinit->addr, 128*1048576, dev_dec21030_access, d, | ||
| 242 | DM_DEFAULT, NULL); | ||
| 243 | |||
| 244 | /* | ||
| 245 | * TODO: I have no idea about how/where this framebuffer should | ||
| 246 | * be in relation to the pci device | ||
| 247 | */ | ||
| 248 | d->vfb_data = dev_fb_init(devinit->machine, devinit->machine->memory, | ||
| 249 | FRAMEBUFFER_PADDR, VFB_GENERIC, | ||
| 250 | dec21030_default_xsize, dec21030_default_ysize, | ||
| 251 | dec21030_default_xsize, dec21030_default_ysize, 8, "TGA"); | ||
| 252 | |||
| 253 | return 1; | ||
| 254 | } | ||
| 255 |
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