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 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
120 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
126 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
130 case ATOM_IIO_MOVE_INDEX:
132 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
135 ((index >> CU8(base + 2)) &
136 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
140 case ATOM_IIO_MOVE_DATA:
142 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
145 ((data >> CU8(base + 2)) &
146 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
150 case ATOM_IIO_MOVE_ATTR:
152 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
156 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
167 printk(KERN_INFO "Unknown IIO opcode.\n");
172 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
173 int *ptr, uint32_t *saved, int print)
175 uint32_t idx, val = 0xCDCDCDCD, align, arg;
176 struct atom_context *gctx = ctx->ctx;
178 align = (attr >> 3) & 7;
184 DEBUG("REG[0x%04X]", idx);
185 idx += gctx->reg_block;
186 switch (gctx->io_mode) {
188 val = gctx->card->reg_read(gctx->card, idx);
192 "PCI registers are not implemented.\n");
196 "SYSIO registers are not implemented.\n");
199 if (!(gctx->io_mode & 0x80)) {
200 printk(KERN_INFO "Bad IO mode.\n");
203 if (!gctx->iio[gctx->io_mode & 0x7F]) {
205 "Undefined indirect IO read method %d.\n",
206 gctx->io_mode & 0x7F);
210 atom_iio_execute(gctx,
211 gctx->iio[gctx->io_mode & 0x7F],
218 /* get_unaligned_le32 avoids unaligned accesses from atombios
219 * tables, noticed on a DEC Alpha. */
220 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
222 DEBUG("PS[0x%02X,0x%04X]", idx, val);
228 DEBUG("WS[0x%02X]", idx);
230 case ATOM_WS_QUOTIENT:
231 val = gctx->divmul[0];
233 case ATOM_WS_REMAINDER:
234 val = gctx->divmul[1];
236 case ATOM_WS_DATAPTR:
237 val = gctx->data_block;
242 case ATOM_WS_OR_MASK:
243 val = 1 << gctx->shift;
245 case ATOM_WS_AND_MASK:
246 val = ~(1 << gctx->shift);
248 case ATOM_WS_FB_WINDOW:
251 case ATOM_WS_ATTRIBUTES:
255 val = gctx->reg_block;
265 if (gctx->data_block)
266 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
268 DEBUG("ID[0x%04X]", idx);
270 val = U32(idx + gctx->data_block);
275 val = gctx->scratch[((gctx->fb_base + idx) / 4)];
277 DEBUG("FB[0x%02X]", idx);
285 DEBUG("IMM 0x%08X\n", val);
289 case ATOM_SRC_WORD16:
293 DEBUG("IMM 0x%04X\n", val);
297 case ATOM_SRC_BYTE16:
298 case ATOM_SRC_BYTE24:
302 DEBUG("IMM 0x%02X\n", val);
310 DEBUG("PLL[0x%02X]", idx);
311 val = gctx->card->pll_read(gctx->card, idx);
317 DEBUG("MC[0x%02X]", idx);
318 val = gctx->card->mc_read(gctx->card, idx);
323 val &= atom_arg_mask[align];
324 val >>= atom_arg_shift[align];
328 DEBUG(".[31:0] -> 0x%08X\n", val);
331 DEBUG(".[15:0] -> 0x%04X\n", val);
334 DEBUG(".[23:8] -> 0x%04X\n", val);
336 case ATOM_SRC_WORD16:
337 DEBUG(".[31:16] -> 0x%04X\n", val);
340 DEBUG(".[7:0] -> 0x%02X\n", val);
343 DEBUG(".[15:8] -> 0x%02X\n", val);
345 case ATOM_SRC_BYTE16:
346 DEBUG(".[23:16] -> 0x%02X\n", val);
348 case ATOM_SRC_BYTE24:
349 DEBUG(".[31:24] -> 0x%02X\n", val);
355 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
357 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
377 case ATOM_SRC_WORD16:
382 case ATOM_SRC_BYTE16:
383 case ATOM_SRC_BYTE24:
391 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
393 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
396 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
398 uint32_t val = 0xCDCDCDCD;
407 case ATOM_SRC_WORD16:
413 case ATOM_SRC_BYTE16:
414 case ATOM_SRC_BYTE24:
422 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
423 int *ptr, uint32_t *saved, int print)
425 return atom_get_src_int(ctx,
426 arg | atom_dst_to_src[(attr >> 3) &
427 7][(attr >> 6) & 3] << 3,
431 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
433 atom_skip_src_int(ctx,
434 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
438 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
439 int *ptr, uint32_t val, uint32_t saved)
442 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
444 struct atom_context *gctx = ctx->ctx;
445 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
446 val <<= atom_arg_shift[align];
447 val &= atom_arg_mask[align];
448 saved &= ~atom_arg_mask[align];
454 DEBUG("REG[0x%04X]", idx);
455 idx += gctx->reg_block;
456 switch (gctx->io_mode) {
459 gctx->card->reg_write(gctx->card, idx,
462 gctx->card->reg_write(gctx->card, idx, val);
466 "PCI registers are not implemented.\n");
470 "SYSIO registers are not implemented.\n");
473 if (!(gctx->io_mode & 0x80)) {
474 printk(KERN_INFO "Bad IO mode.\n");
477 if (!gctx->iio[gctx->io_mode & 0xFF]) {
479 "Undefined indirect IO write method %d.\n",
480 gctx->io_mode & 0x7F);
483 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
490 DEBUG("PS[0x%02X]", idx);
491 ctx->ps[idx] = cpu_to_le32(val);
496 DEBUG("WS[0x%02X]", idx);
498 case ATOM_WS_QUOTIENT:
499 gctx->divmul[0] = val;
501 case ATOM_WS_REMAINDER:
502 gctx->divmul[1] = val;
504 case ATOM_WS_DATAPTR:
505 gctx->data_block = val;
510 case ATOM_WS_OR_MASK:
511 case ATOM_WS_AND_MASK:
513 case ATOM_WS_FB_WINDOW:
516 case ATOM_WS_ATTRIBUTES:
520 gctx->reg_block = val;
529 gctx->scratch[((gctx->fb_base + idx) / 4)] = val;
530 DEBUG("FB[0x%02X]", idx);
535 DEBUG("PLL[0x%02X]", idx);
536 gctx->card->pll_write(gctx->card, idx, val);
541 DEBUG("MC[0x%02X]", idx);
542 gctx->card->mc_write(gctx->card, idx, val);
547 DEBUG(".[31:0] <- 0x%08X\n", old_val);
550 DEBUG(".[15:0] <- 0x%04X\n", old_val);
553 DEBUG(".[23:8] <- 0x%04X\n", old_val);
555 case ATOM_SRC_WORD16:
556 DEBUG(".[31:16] <- 0x%04X\n", old_val);
559 DEBUG(".[7:0] <- 0x%02X\n", old_val);
562 DEBUG(".[15:8] <- 0x%02X\n", old_val);
564 case ATOM_SRC_BYTE16:
565 DEBUG(".[23:16] <- 0x%02X\n", old_val);
567 case ATOM_SRC_BYTE24:
568 DEBUG(".[31:24] <- 0x%02X\n", old_val);
573 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
575 uint8_t attr = U8((*ptr)++);
576 uint32_t dst, src, saved;
579 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
581 src = atom_get_src(ctx, attr, ptr);
584 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
587 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
589 uint8_t attr = U8((*ptr)++);
590 uint32_t dst, src, saved;
593 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
595 src = atom_get_src(ctx, attr, ptr);
598 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
601 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
603 printk("ATOM BIOS beeped!\n");
606 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
608 int idx = U8((*ptr)++);
611 if (idx < ATOM_TABLE_NAMES_CNT)
612 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
614 SDEBUG(" table: %d\n", idx);
615 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
616 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
622 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
624 uint8_t attr = U8((*ptr)++);
628 attr |= atom_def_dst[attr >> 3] << 6;
629 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
631 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
634 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
636 uint8_t attr = U8((*ptr)++);
639 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
641 src = atom_get_src(ctx, attr, ptr);
642 ctx->ctx->cs_equal = (dst == src);
643 ctx->ctx->cs_above = (dst > src);
644 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
645 ctx->ctx->cs_above ? "GT" : "LE");
648 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
650 uint8_t count = U8((*ptr)++);
651 SDEBUG(" count: %d\n", count);
652 if (arg == ATOM_UNIT_MICROSEC)
655 schedule_timeout_uninterruptible(msecs_to_jiffies(count));
658 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
660 uint8_t attr = U8((*ptr)++);
663 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
665 src = atom_get_src(ctx, attr, ptr);
667 ctx->ctx->divmul[0] = dst / src;
668 ctx->ctx->divmul[1] = dst % src;
670 ctx->ctx->divmul[0] = 0;
671 ctx->ctx->divmul[1] = 0;
675 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
677 /* functionally, a nop */
680 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
682 int execute = 0, target = U16(*ptr);
683 unsigned long cjiffies;
687 case ATOM_COND_ABOVE:
688 execute = ctx->ctx->cs_above;
690 case ATOM_COND_ABOVEOREQUAL:
691 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
693 case ATOM_COND_ALWAYS:
696 case ATOM_COND_BELOW:
697 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
699 case ATOM_COND_BELOWOREQUAL:
700 execute = !ctx->ctx->cs_above;
702 case ATOM_COND_EQUAL:
703 execute = ctx->ctx->cs_equal;
705 case ATOM_COND_NOTEQUAL:
706 execute = !ctx->ctx->cs_equal;
709 if (arg != ATOM_COND_ALWAYS)
710 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
711 SDEBUG(" target: 0x%04X\n", target);
713 if (ctx->last_jump == (ctx->start + target)) {
715 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
716 cjiffies -= ctx->last_jump_jiffies;
717 if ((jiffies_to_msecs(cjiffies) > 5000)) {
718 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
722 /* jiffies wrap around we will just wait a little longer */
723 ctx->last_jump_jiffies = jiffies;
726 ctx->last_jump = ctx->start + target;
727 ctx->last_jump_jiffies = jiffies;
729 *ptr = ctx->start + target;
733 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
735 uint8_t attr = U8((*ptr)++);
736 uint32_t dst, src1, src2, saved;
739 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
741 src1 = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
743 src2 = atom_get_src(ctx, attr, ptr);
747 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
750 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
752 uint8_t attr = U8((*ptr)++);
755 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
756 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
758 atom_skip_dst(ctx, arg, attr, ptr);
762 src = atom_get_src(ctx, attr, ptr);
764 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
767 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
769 uint8_t attr = U8((*ptr)++);
772 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
774 src = atom_get_src(ctx, attr, ptr);
775 ctx->ctx->divmul[0] = dst * src;
778 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
783 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
785 uint8_t attr = U8((*ptr)++);
786 uint32_t dst, src, saved;
789 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
791 src = atom_get_src(ctx, attr, ptr);
794 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
797 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
799 uint8_t val = U8((*ptr)++);
800 SDEBUG("POST card output: 0x%02X\n", val);
803 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
805 printk(KERN_INFO "unimplemented!\n");
808 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
810 printk(KERN_INFO "unimplemented!\n");
813 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
815 printk(KERN_INFO "unimplemented!\n");
818 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
822 SDEBUG(" block: %d\n", idx);
824 ctx->ctx->data_block = 0;
826 ctx->ctx->data_block = ctx->start;
828 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
829 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
832 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
834 uint8_t attr = U8((*ptr)++);
835 SDEBUG(" fb_base: ");
836 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
839 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
845 if (port < ATOM_IO_NAMES_CNT)
846 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
848 SDEBUG(" port: %d\n", port);
850 ctx->ctx->io_mode = ATOM_IO_MM;
852 ctx->ctx->io_mode = ATOM_IO_IIO | port;
856 ctx->ctx->io_mode = ATOM_IO_PCI;
859 case ATOM_PORT_SYSIO:
860 ctx->ctx->io_mode = ATOM_IO_SYSIO;
866 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
868 ctx->ctx->reg_block = U16(*ptr);
870 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
873 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
875 uint8_t attr = U8((*ptr)++), shift;
879 attr |= atom_def_dst[attr >> 3] << 6;
881 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
882 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
883 SDEBUG(" shift: %d\n", shift);
886 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
889 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
891 uint8_t attr = U8((*ptr)++), shift;
895 attr |= atom_def_dst[attr >> 3] << 6;
897 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
898 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
899 SDEBUG(" shift: %d\n", shift);
902 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
905 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
907 uint8_t attr = U8((*ptr)++), shift;
910 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
912 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
913 /* op needs to full dst value */
915 shift = atom_get_src(ctx, attr, ptr);
916 SDEBUG(" shift: %d\n", shift);
918 dst &= atom_arg_mask[dst_align];
919 dst >>= atom_arg_shift[dst_align];
921 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
924 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
926 uint8_t attr = U8((*ptr)++), shift;
929 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
931 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
932 /* op needs to full dst value */
934 shift = atom_get_src(ctx, attr, ptr);
935 SDEBUG(" shift: %d\n", shift);
937 dst &= atom_arg_mask[dst_align];
938 dst >>= atom_arg_shift[dst_align];
940 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
943 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
945 uint8_t attr = U8((*ptr)++);
946 uint32_t dst, src, saved;
949 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
951 src = atom_get_src(ctx, attr, ptr);
954 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
957 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
959 uint8_t attr = U8((*ptr)++);
960 uint32_t src, val, target;
962 src = atom_get_src(ctx, attr, ptr);
963 while (U16(*ptr) != ATOM_CASE_END)
964 if (U8(*ptr) == ATOM_CASE_MAGIC) {
968 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
972 SDEBUG(" target: %04X\n", target);
973 *ptr = ctx->start + target;
978 printk(KERN_INFO "Bad case.\n");
984 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
986 uint8_t attr = U8((*ptr)++);
989 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
991 src = atom_get_src(ctx, attr, ptr);
992 ctx->ctx->cs_equal = ((dst & src) == 0);
993 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
996 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
998 uint8_t attr = U8((*ptr)++);
999 uint32_t dst, src, saved;
1002 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1004 src = atom_get_src(ctx, attr, ptr);
1007 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1010 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1012 printk(KERN_INFO "unimplemented!\n");
1016 void (*func) (atom_exec_context *, int *, int);
1018 } opcode_table[ATOM_OP_CNT] = {
1021 atom_op_move, ATOM_ARG_REG}, {
1022 atom_op_move, ATOM_ARG_PS}, {
1023 atom_op_move, ATOM_ARG_WS}, {
1024 atom_op_move, ATOM_ARG_FB}, {
1025 atom_op_move, ATOM_ARG_PLL}, {
1026 atom_op_move, ATOM_ARG_MC}, {
1027 atom_op_and, ATOM_ARG_REG}, {
1028 atom_op_and, ATOM_ARG_PS}, {
1029 atom_op_and, ATOM_ARG_WS}, {
1030 atom_op_and, ATOM_ARG_FB}, {
1031 atom_op_and, ATOM_ARG_PLL}, {
1032 atom_op_and, ATOM_ARG_MC}, {
1033 atom_op_or, ATOM_ARG_REG}, {
1034 atom_op_or, ATOM_ARG_PS}, {
1035 atom_op_or, ATOM_ARG_WS}, {
1036 atom_op_or, ATOM_ARG_FB}, {
1037 atom_op_or, ATOM_ARG_PLL}, {
1038 atom_op_or, ATOM_ARG_MC}, {
1039 atom_op_shift_left, ATOM_ARG_REG}, {
1040 atom_op_shift_left, ATOM_ARG_PS}, {
1041 atom_op_shift_left, ATOM_ARG_WS}, {
1042 atom_op_shift_left, ATOM_ARG_FB}, {
1043 atom_op_shift_left, ATOM_ARG_PLL}, {
1044 atom_op_shift_left, ATOM_ARG_MC}, {
1045 atom_op_shift_right, ATOM_ARG_REG}, {
1046 atom_op_shift_right, ATOM_ARG_PS}, {
1047 atom_op_shift_right, ATOM_ARG_WS}, {
1048 atom_op_shift_right, ATOM_ARG_FB}, {
1049 atom_op_shift_right, ATOM_ARG_PLL}, {
1050 atom_op_shift_right, ATOM_ARG_MC}, {
1051 atom_op_mul, ATOM_ARG_REG}, {
1052 atom_op_mul, ATOM_ARG_PS}, {
1053 atom_op_mul, ATOM_ARG_WS}, {
1054 atom_op_mul, ATOM_ARG_FB}, {
1055 atom_op_mul, ATOM_ARG_PLL}, {
1056 atom_op_mul, ATOM_ARG_MC}, {
1057 atom_op_div, ATOM_ARG_REG}, {
1058 atom_op_div, ATOM_ARG_PS}, {
1059 atom_op_div, ATOM_ARG_WS}, {
1060 atom_op_div, ATOM_ARG_FB}, {
1061 atom_op_div, ATOM_ARG_PLL}, {
1062 atom_op_div, ATOM_ARG_MC}, {
1063 atom_op_add, ATOM_ARG_REG}, {
1064 atom_op_add, ATOM_ARG_PS}, {
1065 atom_op_add, ATOM_ARG_WS}, {
1066 atom_op_add, ATOM_ARG_FB}, {
1067 atom_op_add, ATOM_ARG_PLL}, {
1068 atom_op_add, ATOM_ARG_MC}, {
1069 atom_op_sub, ATOM_ARG_REG}, {
1070 atom_op_sub, ATOM_ARG_PS}, {
1071 atom_op_sub, ATOM_ARG_WS}, {
1072 atom_op_sub, ATOM_ARG_FB}, {
1073 atom_op_sub, ATOM_ARG_PLL}, {
1074 atom_op_sub, ATOM_ARG_MC}, {
1075 atom_op_setport, ATOM_PORT_ATI}, {
1076 atom_op_setport, ATOM_PORT_PCI}, {
1077 atom_op_setport, ATOM_PORT_SYSIO}, {
1078 atom_op_setregblock, 0}, {
1079 atom_op_setfbbase, 0}, {
1080 atom_op_compare, ATOM_ARG_REG}, {
1081 atom_op_compare, ATOM_ARG_PS}, {
1082 atom_op_compare, ATOM_ARG_WS}, {
1083 atom_op_compare, ATOM_ARG_FB}, {
1084 atom_op_compare, ATOM_ARG_PLL}, {
1085 atom_op_compare, ATOM_ARG_MC}, {
1086 atom_op_switch, 0}, {
1087 atom_op_jump, ATOM_COND_ALWAYS}, {
1088 atom_op_jump, ATOM_COND_EQUAL}, {
1089 atom_op_jump, ATOM_COND_BELOW}, {
1090 atom_op_jump, ATOM_COND_ABOVE}, {
1091 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1092 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1093 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1094 atom_op_test, ATOM_ARG_REG}, {
1095 atom_op_test, ATOM_ARG_PS}, {
1096 atom_op_test, ATOM_ARG_WS}, {
1097 atom_op_test, ATOM_ARG_FB}, {
1098 atom_op_test, ATOM_ARG_PLL}, {
1099 atom_op_test, ATOM_ARG_MC}, {
1100 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1101 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1102 atom_op_calltable, 0}, {
1103 atom_op_repeat, 0}, {
1104 atom_op_clear, ATOM_ARG_REG}, {
1105 atom_op_clear, ATOM_ARG_PS}, {
1106 atom_op_clear, ATOM_ARG_WS}, {
1107 atom_op_clear, ATOM_ARG_FB}, {
1108 atom_op_clear, ATOM_ARG_PLL}, {
1109 atom_op_clear, ATOM_ARG_MC}, {
1112 atom_op_mask, ATOM_ARG_REG}, {
1113 atom_op_mask, ATOM_ARG_PS}, {
1114 atom_op_mask, ATOM_ARG_WS}, {
1115 atom_op_mask, ATOM_ARG_FB}, {
1116 atom_op_mask, ATOM_ARG_PLL}, {
1117 atom_op_mask, ATOM_ARG_MC}, {
1118 atom_op_postcard, 0}, {
1120 atom_op_savereg, 0}, {
1121 atom_op_restorereg, 0}, {
1122 atom_op_setdatablock, 0}, {
1123 atom_op_xor, ATOM_ARG_REG}, {
1124 atom_op_xor, ATOM_ARG_PS}, {
1125 atom_op_xor, ATOM_ARG_WS}, {
1126 atom_op_xor, ATOM_ARG_FB}, {
1127 atom_op_xor, ATOM_ARG_PLL}, {
1128 atom_op_xor, ATOM_ARG_MC}, {
1129 atom_op_shl, ATOM_ARG_REG}, {
1130 atom_op_shl, ATOM_ARG_PS}, {
1131 atom_op_shl, ATOM_ARG_WS}, {
1132 atom_op_shl, ATOM_ARG_FB}, {
1133 atom_op_shl, ATOM_ARG_PLL}, {
1134 atom_op_shl, ATOM_ARG_MC}, {
1135 atom_op_shr, ATOM_ARG_REG}, {
1136 atom_op_shr, ATOM_ARG_PS}, {
1137 atom_op_shr, ATOM_ARG_WS}, {
1138 atom_op_shr, ATOM_ARG_FB}, {
1139 atom_op_shr, ATOM_ARG_PLL}, {
1140 atom_op_shr, ATOM_ARG_MC}, {
1141 atom_op_debug, 0},};
1143 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1145 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1146 int len, ws, ps, ptr;
1148 atom_exec_context ectx;
1154 len = CU16(base + ATOM_CT_SIZE_PTR);
1155 ws = CU8(base + ATOM_CT_WS_PTR);
1156 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1157 ptr = base + ATOM_CT_CODE_PTR;
1159 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1162 ectx.ps_shift = ps / 4;
1168 ectx.ws = kzalloc(4 * ws, GFP_KERNEL);
1175 if (op < ATOM_OP_NAMES_CNT)
1176 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1178 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1180 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1181 base, len, ws, ps, ptr - 1);
1186 if (op < ATOM_OP_CNT && op > 0)
1187 opcode_table[op].func(&ectx, &ptr,
1188 opcode_table[op].arg);
1192 if (op == ATOM_OP_EOT)
1204 int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1208 mutex_lock(&ctx->mutex);
1209 /* reset reg block */
1211 /* reset fb window */
1214 ctx->io_mode = ATOM_IO_MM;
1215 r = atom_execute_table_locked(ctx, index, params);
1216 mutex_unlock(&ctx->mutex);
1220 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1222 static void atom_index_iio(struct atom_context *ctx, int base)
1224 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1225 while (CU8(base) == ATOM_IIO_START) {
1226 ctx->iio[CU8(base + 1)] = base + 2;
1228 while (CU8(base) != ATOM_IIO_END)
1229 base += atom_iio_len[CU8(base)];
1234 struct atom_context *atom_parse(struct card_info *card, void *bios)
1237 struct atom_context *ctx =
1238 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1246 if (CU16(0) != ATOM_BIOS_MAGIC) {
1247 printk(KERN_INFO "Invalid BIOS magic.\n");
1252 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1253 strlen(ATOM_ATI_MAGIC))) {
1254 printk(KERN_INFO "Invalid ATI magic.\n");
1259 base = CU16(ATOM_ROM_TABLE_PTR);
1261 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1262 strlen(ATOM_ROM_MAGIC))) {
1263 printk(KERN_INFO "Invalid ATOM magic.\n");
1268 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1269 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1270 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1272 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1273 while (*str && ((*str == '\n') || (*str == '\r')))
1275 /* name string isn't always 0 terminated */
1276 for (i = 0; i < 511; i++) {
1278 if (name[i] < '.' || name[i] > 'z') {
1283 printk(KERN_INFO "ATOM BIOS: %s\n", name);
1288 int atom_asic_init(struct atom_context *ctx)
1290 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1294 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1295 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1296 if (!ps[0] || !ps[1])
1299 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1301 return atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1304 void atom_destroy(struct atom_context *ctx)
1311 bool atom_parse_data_header(struct atom_context *ctx, int index,
1312 uint16_t * size, uint8_t * frev, uint8_t * crev,
1313 uint16_t * data_start)
1315 int offset = index * 2 + 4;
1316 int idx = CU16(ctx->data_table + offset);
1317 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1325 *frev = CU8(idx + 2);
1327 *crev = CU8(idx + 3);
1332 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1335 int offset = index * 2 + 4;
1336 int idx = CU16(ctx->cmd_table + offset);
1337 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1343 *frev = CU8(idx + 2);
1345 *crev = CU8(idx + 3);
1349 int atom_allocate_fb_scratch(struct atom_context *ctx)
1351 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1352 uint16_t data_offset;
1353 int usage_bytes = 0;
1354 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1356 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1357 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1359 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1360 firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware,
1361 firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb);
1363 usage_bytes = firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb * 1024;
1365 if (usage_bytes == 0)
1366 usage_bytes = 20 * 1024;
1367 /* allocate some scratch memory */
1368 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);