2 * Copyright 2008 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Stanislaw Skowronek
25 #include <linux/module.h>
26 #include <linux/sched.h>
27 #include <linux/slab.h>
28 #include <asm/unaligned.h>
33 #include "atom-names.h"
34 #include "atom-bits.h"
36 #define ATOM_COND_ABOVE 0
37 #define ATOM_COND_ABOVEOREQUAL 1
38 #define ATOM_COND_ALWAYS 2
39 #define ATOM_COND_BELOW 3
40 #define ATOM_COND_BELOWOREQUAL 4
41 #define ATOM_COND_EQUAL 5
42 #define ATOM_COND_NOTEQUAL 6
44 #define ATOM_PORT_ATI 0
45 #define ATOM_PORT_PCI 1
46 #define ATOM_PORT_SYSIO 2
48 #define ATOM_UNIT_MICROSEC 0
49 #define ATOM_UNIT_MILLISEC 1
55 struct atom_context *ctx;
60 unsigned long last_jump_jiffies;
65 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
66 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
68 static uint32_t atom_arg_mask[8] =
69 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
71 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
73 static int atom_dst_to_src[8][4] = {
74 /* translate destination alignment field to the source alignment encoding */
84 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
86 static int debug_depth = 0;
88 static void debug_print_spaces(int n)
94 #define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
95 #define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
97 #define DEBUG(...) do { } while (0)
98 #define SDEBUG(...) do { } while (0)
101 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
102 uint32_t index, uint32_t data)
104 uint32_t temp = 0xCDCDCDCD;
111 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
115 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
116 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
121 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
127 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
131 case ATOM_IIO_MOVE_INDEX:
133 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
136 ((index >> CU8(base + 2)) &
137 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
141 case ATOM_IIO_MOVE_DATA:
143 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
146 ((data >> CU8(base + 2)) &
147 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
151 case ATOM_IIO_MOVE_ATTR:
153 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
157 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
168 printk(KERN_INFO "Unknown IIO opcode.\n");
173 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
174 int *ptr, uint32_t *saved, int print)
176 uint32_t idx, val = 0xCDCDCDCD, align, arg;
177 struct atom_context *gctx = ctx->ctx;
179 align = (attr >> 3) & 7;
185 DEBUG("REG[0x%04X]", idx);
186 idx += gctx->reg_block;
187 switch (gctx->io_mode) {
189 val = gctx->card->reg_read(gctx->card, idx);
193 "PCI registers are not implemented.\n");
197 "SYSIO registers are not implemented.\n");
200 if (!(gctx->io_mode & 0x80)) {
201 printk(KERN_INFO "Bad IO mode.\n");
204 if (!gctx->iio[gctx->io_mode & 0x7F]) {
206 "Undefined indirect IO read method %d.\n",
207 gctx->io_mode & 0x7F);
211 atom_iio_execute(gctx,
212 gctx->iio[gctx->io_mode & 0x7F],
219 /* get_unaligned_le32 avoids unaligned accesses from atombios
220 * tables, noticed on a DEC Alpha. */
221 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
223 DEBUG("PS[0x%02X,0x%04X]", idx, val);
229 DEBUG("WS[0x%02X]", idx);
231 case ATOM_WS_QUOTIENT:
232 val = gctx->divmul[0];
234 case ATOM_WS_REMAINDER:
235 val = gctx->divmul[1];
237 case ATOM_WS_DATAPTR:
238 val = gctx->data_block;
243 case ATOM_WS_OR_MASK:
244 val = 1 << gctx->shift;
246 case ATOM_WS_AND_MASK:
247 val = ~(1 << gctx->shift);
249 case ATOM_WS_FB_WINDOW:
252 case ATOM_WS_ATTRIBUTES:
256 val = gctx->reg_block;
266 if (gctx->data_block)
267 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
269 DEBUG("ID[0x%04X]", idx);
271 val = U32(idx + gctx->data_block);
276 val = gctx->scratch[((gctx->fb_base + idx) / 4)];
278 DEBUG("FB[0x%02X]", idx);
286 DEBUG("IMM 0x%08X\n", val);
290 case ATOM_SRC_WORD16:
294 DEBUG("IMM 0x%04X\n", val);
298 case ATOM_SRC_BYTE16:
299 case ATOM_SRC_BYTE24:
303 DEBUG("IMM 0x%02X\n", val);
311 DEBUG("PLL[0x%02X]", idx);
312 val = gctx->card->pll_read(gctx->card, idx);
318 DEBUG("MC[0x%02X]", idx);
319 val = gctx->card->mc_read(gctx->card, idx);
324 val &= atom_arg_mask[align];
325 val >>= atom_arg_shift[align];
329 DEBUG(".[31:0] -> 0x%08X\n", val);
332 DEBUG(".[15:0] -> 0x%04X\n", val);
335 DEBUG(".[23:8] -> 0x%04X\n", val);
337 case ATOM_SRC_WORD16:
338 DEBUG(".[31:16] -> 0x%04X\n", val);
341 DEBUG(".[7:0] -> 0x%02X\n", val);
344 DEBUG(".[15:8] -> 0x%02X\n", val);
346 case ATOM_SRC_BYTE16:
347 DEBUG(".[23:16] -> 0x%02X\n", val);
349 case ATOM_SRC_BYTE24:
350 DEBUG(".[31:24] -> 0x%02X\n", val);
356 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
358 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
378 case ATOM_SRC_WORD16:
383 case ATOM_SRC_BYTE16:
384 case ATOM_SRC_BYTE24:
392 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
394 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
397 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
399 uint32_t val = 0xCDCDCDCD;
408 case ATOM_SRC_WORD16:
414 case ATOM_SRC_BYTE16:
415 case ATOM_SRC_BYTE24:
423 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
424 int *ptr, uint32_t *saved, int print)
426 return atom_get_src_int(ctx,
427 arg | atom_dst_to_src[(attr >> 3) &
428 7][(attr >> 6) & 3] << 3,
432 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
434 atom_skip_src_int(ctx,
435 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
439 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
440 int *ptr, uint32_t val, uint32_t saved)
443 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
445 struct atom_context *gctx = ctx->ctx;
446 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
447 val <<= atom_arg_shift[align];
448 val &= atom_arg_mask[align];
449 saved &= ~atom_arg_mask[align];
455 DEBUG("REG[0x%04X]", idx);
456 idx += gctx->reg_block;
457 switch (gctx->io_mode) {
460 gctx->card->reg_write(gctx->card, idx,
463 gctx->card->reg_write(gctx->card, idx, val);
467 "PCI registers are not implemented.\n");
471 "SYSIO registers are not implemented.\n");
474 if (!(gctx->io_mode & 0x80)) {
475 printk(KERN_INFO "Bad IO mode.\n");
478 if (!gctx->iio[gctx->io_mode & 0xFF]) {
480 "Undefined indirect IO write method %d.\n",
481 gctx->io_mode & 0x7F);
484 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
491 DEBUG("PS[0x%02X]", idx);
492 ctx->ps[idx] = cpu_to_le32(val);
497 DEBUG("WS[0x%02X]", idx);
499 case ATOM_WS_QUOTIENT:
500 gctx->divmul[0] = val;
502 case ATOM_WS_REMAINDER:
503 gctx->divmul[1] = val;
505 case ATOM_WS_DATAPTR:
506 gctx->data_block = val;
511 case ATOM_WS_OR_MASK:
512 case ATOM_WS_AND_MASK:
514 case ATOM_WS_FB_WINDOW:
517 case ATOM_WS_ATTRIBUTES:
521 gctx->reg_block = val;
530 gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
531 DEBUG("FB[0x%02X]", idx);
536 DEBUG("PLL[0x%02X]", idx);
537 gctx->card->pll_write(gctx->card, idx, val);
542 DEBUG("MC[0x%02X]", idx);
543 gctx->card->mc_write(gctx->card, idx, val);
548 DEBUG(".[31:0] <- 0x%08X\n", old_val);
551 DEBUG(".[15:0] <- 0x%04X\n", old_val);
554 DEBUG(".[23:8] <- 0x%04X\n", old_val);
556 case ATOM_SRC_WORD16:
557 DEBUG(".[31:16] <- 0x%04X\n", old_val);
560 DEBUG(".[7:0] <- 0x%02X\n", old_val);
563 DEBUG(".[15:8] <- 0x%02X\n", old_val);
565 case ATOM_SRC_BYTE16:
566 DEBUG(".[23:16] <- 0x%02X\n", old_val);
568 case ATOM_SRC_BYTE24:
569 DEBUG(".[31:24] <- 0x%02X\n", old_val);
574 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
576 uint8_t attr = U8((*ptr)++);
577 uint32_t dst, src, saved;
580 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
582 src = atom_get_src(ctx, attr, ptr);
585 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
588 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
590 uint8_t attr = U8((*ptr)++);
591 uint32_t dst, src, saved;
594 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
596 src = atom_get_src(ctx, attr, ptr);
599 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
602 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
604 printk("ATOM BIOS beeped!\n");
607 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
609 int idx = U8((*ptr)++);
612 if (idx < ATOM_TABLE_NAMES_CNT)
613 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
615 SDEBUG(" table: %d\n", idx);
616 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
617 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
623 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
625 uint8_t attr = U8((*ptr)++);
629 attr |= atom_def_dst[attr >> 3] << 6;
630 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
632 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
635 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
637 uint8_t attr = U8((*ptr)++);
640 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
642 src = atom_get_src(ctx, attr, ptr);
643 ctx->ctx->cs_equal = (dst == src);
644 ctx->ctx->cs_above = (dst > src);
645 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
646 ctx->ctx->cs_above ? "GT" : "LE");
649 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
651 uint8_t count = U8((*ptr)++);
652 SDEBUG(" count: %d\n", count);
653 if (arg == ATOM_UNIT_MICROSEC)
656 schedule_timeout_uninterruptible(msecs_to_jiffies(count));
659 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
661 uint8_t attr = U8((*ptr)++);
664 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
666 src = atom_get_src(ctx, attr, ptr);
668 ctx->ctx->divmul[0] = dst / src;
669 ctx->ctx->divmul[1] = dst % src;
671 ctx->ctx->divmul[0] = 0;
672 ctx->ctx->divmul[1] = 0;
676 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
678 /* functionally, a nop */
681 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
683 int execute = 0, target = U16(*ptr);
684 unsigned long cjiffies;
688 case ATOM_COND_ABOVE:
689 execute = ctx->ctx->cs_above;
691 case ATOM_COND_ABOVEOREQUAL:
692 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
694 case ATOM_COND_ALWAYS:
697 case ATOM_COND_BELOW:
698 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
700 case ATOM_COND_BELOWOREQUAL:
701 execute = !ctx->ctx->cs_above;
703 case ATOM_COND_EQUAL:
704 execute = ctx->ctx->cs_equal;
706 case ATOM_COND_NOTEQUAL:
707 execute = !ctx->ctx->cs_equal;
710 if (arg != ATOM_COND_ALWAYS)
711 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
712 SDEBUG(" target: 0x%04X\n", target);
714 if (ctx->last_jump == (ctx->start + target)) {
716 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
717 cjiffies -= ctx->last_jump_jiffies;
718 if ((jiffies_to_msecs(cjiffies) > 5000)) {
719 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
723 /* jiffies wrap around we will just wait a little longer */
724 ctx->last_jump_jiffies = jiffies;
727 ctx->last_jump = ctx->start + target;
728 ctx->last_jump_jiffies = jiffies;
730 *ptr = ctx->start + target;
734 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
736 uint8_t attr = U8((*ptr)++);
737 uint32_t dst, src1, src2, saved;
740 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
742 src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
744 src2 = atom_get_src(ctx, attr, ptr);
748 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
751 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
753 uint8_t attr = U8((*ptr)++);
756 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
757 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
759 atom_skip_dst(ctx, arg, attr, ptr);
763 src = atom_get_src(ctx, attr, ptr);
765 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
768 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
770 uint8_t attr = U8((*ptr)++);
773 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
775 src = atom_get_src(ctx, attr, ptr);
776 ctx->ctx->divmul[0] = dst * src;
779 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
784 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
786 uint8_t attr = U8((*ptr)++);
787 uint32_t dst, src, saved;
790 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
792 src = atom_get_src(ctx, attr, ptr);
795 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
798 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
800 uint8_t val = U8((*ptr)++);
801 SDEBUG("POST card output: 0x%02X\n", val);
804 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
806 printk(KERN_INFO "unimplemented!\n");
809 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
811 printk(KERN_INFO "unimplemented!\n");
814 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
816 printk(KERN_INFO "unimplemented!\n");
819 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
823 SDEBUG(" block: %d\n", idx);
825 ctx->ctx->data_block = 0;
827 ctx->ctx->data_block = ctx->start;
829 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
830 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
833 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
835 uint8_t attr = U8((*ptr)++);
836 SDEBUG(" fb_base: ");
837 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
840 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
846 if (port < ATOM_IO_NAMES_CNT)
847 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
849 SDEBUG(" port: %d\n", port);
851 ctx->ctx->io_mode = ATOM_IO_MM;
853 ctx->ctx->io_mode = ATOM_IO_IIO | port;
857 ctx->ctx->io_mode = ATOM_IO_PCI;
860 case ATOM_PORT_SYSIO:
861 ctx->ctx->io_mode = ATOM_IO_SYSIO;
867 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
869 ctx->ctx->reg_block = U16(*ptr);
871 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
874 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
876 uint8_t attr = U8((*ptr)++), shift;
880 attr |= atom_def_dst[attr >> 3] << 6;
882 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
883 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
884 SDEBUG(" shift: %d\n", shift);
887 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
890 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
892 uint8_t attr = U8((*ptr)++), shift;
896 attr |= atom_def_dst[attr >> 3] << 6;
898 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
899 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
900 SDEBUG(" shift: %d\n", shift);
903 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
906 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
908 uint8_t attr = U8((*ptr)++), shift;
911 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
913 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
914 /* op needs to full dst value */
916 shift = atom_get_src(ctx, attr, ptr);
917 SDEBUG(" shift: %d\n", shift);
919 dst &= atom_arg_mask[dst_align];
920 dst >>= atom_arg_shift[dst_align];
922 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
925 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
927 uint8_t attr = U8((*ptr)++), shift;
930 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
932 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
933 /* op needs to full dst value */
935 shift = atom_get_src(ctx, attr, ptr);
936 SDEBUG(" shift: %d\n", shift);
938 dst &= atom_arg_mask[dst_align];
939 dst >>= atom_arg_shift[dst_align];
941 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
944 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
946 uint8_t attr = U8((*ptr)++);
947 uint32_t dst, src, saved;
950 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
952 src = atom_get_src(ctx, attr, ptr);
955 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
958 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
960 uint8_t attr = U8((*ptr)++);
961 uint32_t src, val, target;
963 src = atom_get_src(ctx, attr, ptr);
964 while (U16(*ptr) != ATOM_CASE_END)
965 if (U8(*ptr) == ATOM_CASE_MAGIC) {
969 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
973 SDEBUG(" target: %04X\n", target);
974 *ptr = ctx->start + target;
979 printk(KERN_INFO "Bad case.\n");
985 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
987 uint8_t attr = U8((*ptr)++);
990 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
992 src = atom_get_src(ctx, attr, ptr);
993 ctx->ctx->cs_equal = ((dst & src) == 0);
994 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
997 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
999 uint8_t attr = U8((*ptr)++);
1000 uint32_t dst, src, saved;
1003 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1005 src = atom_get_src(ctx, attr, ptr);
1008 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1011 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1013 printk(KERN_INFO "unimplemented!\n");
1017 void (*func) (atom_exec_context *, int *, int);
1019 } opcode_table[ATOM_OP_CNT] = {
1022 atom_op_move, ATOM_ARG_REG}, {
1023 atom_op_move, ATOM_ARG_PS}, {
1024 atom_op_move, ATOM_ARG_WS}, {
1025 atom_op_move, ATOM_ARG_FB}, {
1026 atom_op_move, ATOM_ARG_PLL}, {
1027 atom_op_move, ATOM_ARG_MC}, {
1028 atom_op_and, ATOM_ARG_REG}, {
1029 atom_op_and, ATOM_ARG_PS}, {
1030 atom_op_and, ATOM_ARG_WS}, {
1031 atom_op_and, ATOM_ARG_FB}, {
1032 atom_op_and, ATOM_ARG_PLL}, {
1033 atom_op_and, ATOM_ARG_MC}, {
1034 atom_op_or, ATOM_ARG_REG}, {
1035 atom_op_or, ATOM_ARG_PS}, {
1036 atom_op_or, ATOM_ARG_WS}, {
1037 atom_op_or, ATOM_ARG_FB}, {
1038 atom_op_or, ATOM_ARG_PLL}, {
1039 atom_op_or, ATOM_ARG_MC}, {
1040 atom_op_shift_left, ATOM_ARG_REG}, {
1041 atom_op_shift_left, ATOM_ARG_PS}, {
1042 atom_op_shift_left, ATOM_ARG_WS}, {
1043 atom_op_shift_left, ATOM_ARG_FB}, {
1044 atom_op_shift_left, ATOM_ARG_PLL}, {
1045 atom_op_shift_left, ATOM_ARG_MC}, {
1046 atom_op_shift_right, ATOM_ARG_REG}, {
1047 atom_op_shift_right, ATOM_ARG_PS}, {
1048 atom_op_shift_right, ATOM_ARG_WS}, {
1049 atom_op_shift_right, ATOM_ARG_FB}, {
1050 atom_op_shift_right, ATOM_ARG_PLL}, {
1051 atom_op_shift_right, ATOM_ARG_MC}, {
1052 atom_op_mul, ATOM_ARG_REG}, {
1053 atom_op_mul, ATOM_ARG_PS}, {
1054 atom_op_mul, ATOM_ARG_WS}, {
1055 atom_op_mul, ATOM_ARG_FB}, {
1056 atom_op_mul, ATOM_ARG_PLL}, {
1057 atom_op_mul, ATOM_ARG_MC}, {
1058 atom_op_div, ATOM_ARG_REG}, {
1059 atom_op_div, ATOM_ARG_PS}, {
1060 atom_op_div, ATOM_ARG_WS}, {
1061 atom_op_div, ATOM_ARG_FB}, {
1062 atom_op_div, ATOM_ARG_PLL}, {
1063 atom_op_div, ATOM_ARG_MC}, {
1064 atom_op_add, ATOM_ARG_REG}, {
1065 atom_op_add, ATOM_ARG_PS}, {
1066 atom_op_add, ATOM_ARG_WS}, {
1067 atom_op_add, ATOM_ARG_FB}, {
1068 atom_op_add, ATOM_ARG_PLL}, {
1069 atom_op_add, ATOM_ARG_MC}, {
1070 atom_op_sub, ATOM_ARG_REG}, {
1071 atom_op_sub, ATOM_ARG_PS}, {
1072 atom_op_sub, ATOM_ARG_WS}, {
1073 atom_op_sub, ATOM_ARG_FB}, {
1074 atom_op_sub, ATOM_ARG_PLL}, {
1075 atom_op_sub, ATOM_ARG_MC}, {
1076 atom_op_setport, ATOM_PORT_ATI}, {
1077 atom_op_setport, ATOM_PORT_PCI}, {
1078 atom_op_setport, ATOM_PORT_SYSIO}, {
1079 atom_op_setregblock, 0}, {
1080 atom_op_setfbbase, 0}, {
1081 atom_op_compare, ATOM_ARG_REG}, {
1082 atom_op_compare, ATOM_ARG_PS}, {
1083 atom_op_compare, ATOM_ARG_WS}, {
1084 atom_op_compare, ATOM_ARG_FB}, {
1085 atom_op_compare, ATOM_ARG_PLL}, {
1086 atom_op_compare, ATOM_ARG_MC}, {
1087 atom_op_switch, 0}, {
1088 atom_op_jump, ATOM_COND_ALWAYS}, {
1089 atom_op_jump, ATOM_COND_EQUAL}, {
1090 atom_op_jump, ATOM_COND_BELOW}, {
1091 atom_op_jump, ATOM_COND_ABOVE}, {
1092 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1093 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1094 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1095 atom_op_test, ATOM_ARG_REG}, {
1096 atom_op_test, ATOM_ARG_PS}, {
1097 atom_op_test, ATOM_ARG_WS}, {
1098 atom_op_test, ATOM_ARG_FB}, {
1099 atom_op_test, ATOM_ARG_PLL}, {
1100 atom_op_test, ATOM_ARG_MC}, {
1101 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1102 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1103 atom_op_calltable, 0}, {
1104 atom_op_repeat, 0}, {
1105 atom_op_clear, ATOM_ARG_REG}, {
1106 atom_op_clear, ATOM_ARG_PS}, {
1107 atom_op_clear, ATOM_ARG_WS}, {
1108 atom_op_clear, ATOM_ARG_FB}, {
1109 atom_op_clear, ATOM_ARG_PLL}, {
1110 atom_op_clear, ATOM_ARG_MC}, {
1113 atom_op_mask, ATOM_ARG_REG}, {
1114 atom_op_mask, ATOM_ARG_PS}, {
1115 atom_op_mask, ATOM_ARG_WS}, {
1116 atom_op_mask, ATOM_ARG_FB}, {
1117 atom_op_mask, ATOM_ARG_PLL}, {
1118 atom_op_mask, ATOM_ARG_MC}, {
1119 atom_op_postcard, 0}, {
1121 atom_op_savereg, 0}, {
1122 atom_op_restorereg, 0}, {
1123 atom_op_setdatablock, 0}, {
1124 atom_op_xor, ATOM_ARG_REG}, {
1125 atom_op_xor, ATOM_ARG_PS}, {
1126 atom_op_xor, ATOM_ARG_WS}, {
1127 atom_op_xor, ATOM_ARG_FB}, {
1128 atom_op_xor, ATOM_ARG_PLL}, {
1129 atom_op_xor, ATOM_ARG_MC}, {
1130 atom_op_shl, ATOM_ARG_REG}, {
1131 atom_op_shl, ATOM_ARG_PS}, {
1132 atom_op_shl, ATOM_ARG_WS}, {
1133 atom_op_shl, ATOM_ARG_FB}, {
1134 atom_op_shl, ATOM_ARG_PLL}, {
1135 atom_op_shl, ATOM_ARG_MC}, {
1136 atom_op_shr, ATOM_ARG_REG}, {
1137 atom_op_shr, ATOM_ARG_PS}, {
1138 atom_op_shr, ATOM_ARG_WS}, {
1139 atom_op_shr, ATOM_ARG_FB}, {
1140 atom_op_shr, ATOM_ARG_PLL}, {
1141 atom_op_shr, ATOM_ARG_MC}, {
1142 atom_op_debug, 0},};
1144 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1146 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1147 int len, ws, ps, ptr;
1149 atom_exec_context ectx;
1155 len = CU16(base + ATOM_CT_SIZE_PTR);
1156 ws = CU8(base + ATOM_CT_WS_PTR);
1157 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1158 ptr = base + ATOM_CT_CODE_PTR;
1160 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1163 ectx.ps_shift = ps / 4;
1169 ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1176 if (op < ATOM_OP_NAMES_CNT)
1177 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1179 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1181 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1182 base, len, ws, ps, ptr - 1);
1187 if (op < ATOM_OP_CNT && op > 0)
1188 opcode_table[op].func(&ectx, &ptr,
1189 opcode_table[op].arg);
1193 if (op == ATOM_OP_EOT)
1205 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1209 mutex_lock(&ctx->mutex);
1210 /* reset reg block */
1212 /* reset fb window */
1215 ctx->io_mode = ATOM_IO_MM;
1216 r = atom_execute_table_locked(ctx, index, params);
1217 mutex_unlock(&ctx->mutex);
1221 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1223 static void atom_index_iio(struct atom_context *ctx, int base)
1225 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1226 while (CU8(base) == ATOM_IIO_START) {
1227 ctx->iio[CU8(base + 1)] = base + 2;
1229 while (CU8(base) != ATOM_IIO_END)
1230 base += atom_iio_len[CU8(base)];
1235 struct atom_context *atom_parse(struct card_info *card, void *bios)
1238 struct atom_context *ctx =
1239 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1247 if (CU16(0) != ATOM_BIOS_MAGIC) {
1248 printk(KERN_INFO "Invalid BIOS magic.\n");
1253 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1254 strlen(ATOM_ATI_MAGIC))) {
1255 printk(KERN_INFO "Invalid ATI magic.\n");
1260 base = CU16(ATOM_ROM_TABLE_PTR);
1262 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1263 strlen(ATOM_ROM_MAGIC))) {
1264 printk(KERN_INFO "Invalid ATOM magic.\n");
1269 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1270 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1271 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1273 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1274 while (*str && ((*str == '\n') || (*str == '\r')))
1276 /* name string isn't always 0 terminated */
1277 for (i = 0; i < 511; i++) {
1279 if (name[i] < '.' || name[i] > 'z') {
1284 printk(KERN_INFO "ATOM BIOS: %s\n", name);
1289 int atom_asic_init(struct atom_context *ctx)
1291 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1295 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1296 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1297 if (!ps[0] || !ps[1])
1300 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1302 return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1305 void atom_destroy(struct atom_context *ctx)
1312 bool atom_parse_data_header(struct atom_context *ctx, int index,
1313 uint16_t * size, uint8_t * frev, uint8_t * crev,
1314 uint16_t * data_start)
1316 int offset = index * 2 + 4;
1317 int idx = CU16(ctx->data_table + offset);
1318 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1326 *frev = CU8(idx + 2);
1328 *crev = CU8(idx + 3);
1333 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1336 int offset = index * 2 + 4;
1337 int idx = CU16(ctx->cmd_table + offset);
1338 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1344 *frev = CU8(idx + 2);
1346 *crev = CU8(idx + 3);
1350 int atom_allocate_fb_scratch(struct atom_context *ctx)
1352 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1353 uint16_t data_offset;
1354 int usage_bytes = 0;
1355 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1357 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1358 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1360 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1361 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
1362 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
1364 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
1366 if (usage_bytes == 0)
1367 usage_bytes = 20 * 1024;
1368 /* allocate some scratch memory */
1369 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);