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"
37 #define ATOM_COND_ABOVE 0
38 #define ATOM_COND_ABOVEOREQUAL 1
39 #define ATOM_COND_ALWAYS 2
40 #define ATOM_COND_BELOW 3
41 #define ATOM_COND_BELOWOREQUAL 4
42 #define ATOM_COND_EQUAL 5
43 #define ATOM_COND_NOTEQUAL 6
45 #define ATOM_PORT_ATI 0
46 #define ATOM_PORT_PCI 1
47 #define ATOM_PORT_SYSIO 2
49 #define ATOM_UNIT_MICROSEC 0
50 #define ATOM_UNIT_MILLISEC 1
56 struct atom_context *ctx;
61 unsigned long last_jump_jiffies;
65 int amdgpu_atom_debug = 0;
66 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
67 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
69 static uint32_t atom_arg_mask[8] =
70 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
72 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
74 static int atom_dst_to_src[8][4] = {
75 /* translate destination alignment field to the source alignment encoding */
85 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
87 static int debug_depth = 0;
89 static void debug_print_spaces(int n)
95 #define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
96 #define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
98 #define DEBUG(...) do { } while (0)
99 #define SDEBUG(...) do { } while (0)
102 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
103 uint32_t index, uint32_t data)
105 uint32_t temp = 0xCDCDCDCD;
113 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
117 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
122 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
128 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
132 case ATOM_IIO_MOVE_INDEX:
134 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
137 ((index >> CU8(base + 2)) &
138 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
142 case ATOM_IIO_MOVE_DATA:
144 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
147 ((data >> CU8(base + 2)) &
148 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
152 case ATOM_IIO_MOVE_ATTR:
154 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
158 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
169 pr_info("Unknown IIO opcode\n");
174 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
175 int *ptr, uint32_t *saved, int print)
177 uint32_t idx, val = 0xCDCDCDCD, align, arg;
178 struct atom_context *gctx = ctx->ctx;
180 align = (attr >> 3) & 7;
186 DEBUG("REG[0x%04X]", idx);
187 idx += gctx->reg_block;
188 switch (gctx->io_mode) {
190 val = gctx->card->reg_read(gctx->card, idx);
193 pr_info("PCI registers are not implemented\n");
196 pr_info("SYSIO registers are not implemented\n");
199 if (!(gctx->io_mode & 0x80)) {
200 pr_info("Bad IO mode\n");
203 if (!gctx->iio[gctx->io_mode & 0x7F]) {
204 pr_info("Undefined indirect IO read method %d\n",
205 gctx->io_mode & 0x7F);
209 atom_iio_execute(gctx,
210 gctx->iio[gctx->io_mode & 0x7F],
217 /* get_unaligned_le32 avoids unaligned accesses from atombios
218 * tables, noticed on a DEC Alpha. */
219 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
221 DEBUG("PS[0x%02X,0x%04X]", idx, val);
227 DEBUG("WS[0x%02X]", idx);
229 case ATOM_WS_QUOTIENT:
230 val = gctx->divmul[0];
232 case ATOM_WS_REMAINDER:
233 val = gctx->divmul[1];
235 case ATOM_WS_DATAPTR:
236 val = gctx->data_block;
241 case ATOM_WS_OR_MASK:
242 val = 1 << gctx->shift;
244 case ATOM_WS_AND_MASK:
245 val = ~(1 << gctx->shift);
247 case ATOM_WS_FB_WINDOW:
250 case ATOM_WS_ATTRIBUTES:
254 val = gctx->reg_block;
264 if (gctx->data_block)
265 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
267 DEBUG("ID[0x%04X]", idx);
269 val = U32(idx + gctx->data_block);
274 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
275 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
276 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
279 val = gctx->scratch[(gctx->fb_base / 4) + idx];
281 DEBUG("FB[0x%02X]", idx);
289 DEBUG("IMM 0x%08X\n", val);
293 case ATOM_SRC_WORD16:
297 DEBUG("IMM 0x%04X\n", val);
301 case ATOM_SRC_BYTE16:
302 case ATOM_SRC_BYTE24:
306 DEBUG("IMM 0x%02X\n", val);
314 DEBUG("PLL[0x%02X]", idx);
315 val = gctx->card->pll_read(gctx->card, idx);
321 DEBUG("MC[0x%02X]", idx);
322 val = gctx->card->mc_read(gctx->card, idx);
327 val &= atom_arg_mask[align];
328 val >>= atom_arg_shift[align];
332 DEBUG(".[31:0] -> 0x%08X\n", val);
335 DEBUG(".[15:0] -> 0x%04X\n", val);
338 DEBUG(".[23:8] -> 0x%04X\n", val);
340 case ATOM_SRC_WORD16:
341 DEBUG(".[31:16] -> 0x%04X\n", val);
344 DEBUG(".[7:0] -> 0x%02X\n", val);
347 DEBUG(".[15:8] -> 0x%02X\n", val);
349 case ATOM_SRC_BYTE16:
350 DEBUG(".[23:16] -> 0x%02X\n", val);
352 case ATOM_SRC_BYTE24:
353 DEBUG(".[31:24] -> 0x%02X\n", val);
359 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
361 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
381 case ATOM_SRC_WORD16:
386 case ATOM_SRC_BYTE16:
387 case ATOM_SRC_BYTE24:
395 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
397 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
400 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
402 uint32_t val = 0xCDCDCDCD;
411 case ATOM_SRC_WORD16:
417 case ATOM_SRC_BYTE16:
418 case ATOM_SRC_BYTE24:
426 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
427 int *ptr, uint32_t *saved, int print)
429 return atom_get_src_int(ctx,
430 arg | atom_dst_to_src[(attr >> 3) &
431 7][(attr >> 6) & 3] << 3,
435 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
437 atom_skip_src_int(ctx,
438 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
442 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
443 int *ptr, uint32_t val, uint32_t saved)
446 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
448 struct atom_context *gctx = ctx->ctx;
449 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
450 val <<= atom_arg_shift[align];
451 val &= atom_arg_mask[align];
452 saved &= ~atom_arg_mask[align];
458 DEBUG("REG[0x%04X]", idx);
459 idx += gctx->reg_block;
460 switch (gctx->io_mode) {
463 gctx->card->reg_write(gctx->card, idx,
466 gctx->card->reg_write(gctx->card, idx, val);
469 pr_info("PCI registers are not implemented\n");
472 pr_info("SYSIO registers are not implemented\n");
475 if (!(gctx->io_mode & 0x80)) {
476 pr_info("Bad IO mode\n");
479 if (!gctx->iio[gctx->io_mode & 0xFF]) {
480 pr_info("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 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
531 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
532 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
534 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
535 DEBUG("FB[0x%02X]", idx);
540 DEBUG("PLL[0x%02X]", idx);
541 gctx->card->pll_write(gctx->card, idx, val);
546 DEBUG("MC[0x%02X]", idx);
547 gctx->card->mc_write(gctx->card, idx, val);
552 DEBUG(".[31:0] <- 0x%08X\n", old_val);
555 DEBUG(".[15:0] <- 0x%04X\n", old_val);
558 DEBUG(".[23:8] <- 0x%04X\n", old_val);
560 case ATOM_SRC_WORD16:
561 DEBUG(".[31:16] <- 0x%04X\n", old_val);
564 DEBUG(".[7:0] <- 0x%02X\n", old_val);
567 DEBUG(".[15:8] <- 0x%02X\n", old_val);
569 case ATOM_SRC_BYTE16:
570 DEBUG(".[23:16] <- 0x%02X\n", old_val);
572 case ATOM_SRC_BYTE24:
573 DEBUG(".[31:24] <- 0x%02X\n", old_val);
578 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
580 uint8_t attr = U8((*ptr)++);
581 uint32_t dst, src, saved;
584 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
586 src = atom_get_src(ctx, attr, ptr);
589 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
592 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
594 uint8_t attr = U8((*ptr)++);
595 uint32_t dst, src, saved;
598 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
600 src = atom_get_src(ctx, attr, ptr);
603 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
606 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
608 printk("ATOM BIOS beeped!\n");
611 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
613 int idx = U8((*ptr)++);
616 if (idx < ATOM_TABLE_NAMES_CNT)
617 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
619 SDEBUG(" table: %d\n", idx);
620 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
621 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
627 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
629 uint8_t attr = U8((*ptr)++);
633 attr |= atom_def_dst[attr >> 3] << 6;
634 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
636 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
639 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
641 uint8_t attr = U8((*ptr)++);
644 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
646 src = atom_get_src(ctx, attr, ptr);
647 ctx->ctx->cs_equal = (dst == src);
648 ctx->ctx->cs_above = (dst > src);
649 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
650 ctx->ctx->cs_above ? "GT" : "LE");
653 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
655 unsigned count = U8((*ptr)++);
656 SDEBUG(" count: %d\n", count);
657 if (arg == ATOM_UNIT_MICROSEC)
659 else if (!drm_can_sleep())
665 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
667 uint8_t attr = U8((*ptr)++);
670 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
672 src = atom_get_src(ctx, attr, ptr);
674 ctx->ctx->divmul[0] = dst / src;
675 ctx->ctx->divmul[1] = dst % src;
677 ctx->ctx->divmul[0] = 0;
678 ctx->ctx->divmul[1] = 0;
682 static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
685 uint8_t attr = U8((*ptr)++);
688 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
690 src = atom_get_src(ctx, attr, ptr);
693 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
695 ctx->ctx->divmul[0] = lower_32_bits(val64);
696 ctx->ctx->divmul[1] = upper_32_bits(val64);
698 ctx->ctx->divmul[0] = 0;
699 ctx->ctx->divmul[1] = 0;
703 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
705 /* functionally, a nop */
708 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
710 int execute = 0, target = U16(*ptr);
711 unsigned long cjiffies;
715 case ATOM_COND_ABOVE:
716 execute = ctx->ctx->cs_above;
718 case ATOM_COND_ABOVEOREQUAL:
719 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
721 case ATOM_COND_ALWAYS:
724 case ATOM_COND_BELOW:
725 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
727 case ATOM_COND_BELOWOREQUAL:
728 execute = !ctx->ctx->cs_above;
730 case ATOM_COND_EQUAL:
731 execute = ctx->ctx->cs_equal;
733 case ATOM_COND_NOTEQUAL:
734 execute = !ctx->ctx->cs_equal;
737 if (arg != ATOM_COND_ALWAYS)
738 SDEBUG(" taken: %s\n", execute ? "yes" : "no");
739 SDEBUG(" target: 0x%04X\n", target);
741 if (ctx->last_jump == (ctx->start + target)) {
743 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
744 cjiffies -= ctx->last_jump_jiffies;
745 if ((jiffies_to_msecs(cjiffies) > 5000)) {
746 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
750 /* jiffies wrap around we will just wait a little longer */
751 ctx->last_jump_jiffies = jiffies;
754 ctx->last_jump = ctx->start + target;
755 ctx->last_jump_jiffies = jiffies;
757 *ptr = ctx->start + target;
761 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
763 uint8_t attr = U8((*ptr)++);
764 uint32_t dst, mask, src, saved;
767 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
768 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
769 SDEBUG(" mask: 0x%08x", mask);
771 src = atom_get_src(ctx, attr, ptr);
775 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
778 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
780 uint8_t attr = U8((*ptr)++);
783 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
784 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
786 atom_skip_dst(ctx, arg, attr, ptr);
790 src = atom_get_src(ctx, attr, ptr);
792 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
795 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
797 uint8_t attr = U8((*ptr)++);
800 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
802 src = atom_get_src(ctx, attr, ptr);
803 ctx->ctx->divmul[0] = dst * src;
806 static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
809 uint8_t attr = U8((*ptr)++);
812 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
814 src = atom_get_src(ctx, attr, ptr);
815 val64 = (uint64_t)dst * (uint64_t)src;
816 ctx->ctx->divmul[0] = lower_32_bits(val64);
817 ctx->ctx->divmul[1] = upper_32_bits(val64);
820 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
825 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
827 uint8_t attr = U8((*ptr)++);
828 uint32_t dst, src, saved;
831 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
833 src = atom_get_src(ctx, attr, ptr);
836 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
839 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
841 uint8_t val = U8((*ptr)++);
842 SDEBUG("POST card output: 0x%02X\n", val);
845 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
847 pr_info("unimplemented!\n");
850 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
852 pr_info("unimplemented!\n");
855 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
857 pr_info("unimplemented!\n");
860 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
864 SDEBUG(" block: %d\n", idx);
866 ctx->ctx->data_block = 0;
868 ctx->ctx->data_block = ctx->start;
870 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
871 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
874 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
876 uint8_t attr = U8((*ptr)++);
877 SDEBUG(" fb_base: ");
878 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
881 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
887 if (port < ATOM_IO_NAMES_CNT)
888 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
890 SDEBUG(" port: %d\n", port);
892 ctx->ctx->io_mode = ATOM_IO_MM;
894 ctx->ctx->io_mode = ATOM_IO_IIO | port;
898 ctx->ctx->io_mode = ATOM_IO_PCI;
901 case ATOM_PORT_SYSIO:
902 ctx->ctx->io_mode = ATOM_IO_SYSIO;
908 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
910 ctx->ctx->reg_block = U16(*ptr);
912 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
915 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
917 uint8_t attr = U8((*ptr)++), shift;
921 attr |= atom_def_dst[attr >> 3] << 6;
923 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
924 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
925 SDEBUG(" shift: %d\n", shift);
928 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
931 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
933 uint8_t attr = U8((*ptr)++), shift;
937 attr |= atom_def_dst[attr >> 3] << 6;
939 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
940 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
941 SDEBUG(" shift: %d\n", shift);
944 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
947 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
949 uint8_t attr = U8((*ptr)++), shift;
952 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
954 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
955 /* op needs to full dst value */
957 shift = atom_get_src(ctx, attr, ptr);
958 SDEBUG(" shift: %d\n", shift);
960 dst &= atom_arg_mask[dst_align];
961 dst >>= atom_arg_shift[dst_align];
963 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
966 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
968 uint8_t attr = U8((*ptr)++), shift;
971 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
973 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
974 /* op needs to full dst value */
976 shift = atom_get_src(ctx, attr, ptr);
977 SDEBUG(" shift: %d\n", shift);
979 dst &= atom_arg_mask[dst_align];
980 dst >>= atom_arg_shift[dst_align];
982 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
985 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
987 uint8_t attr = U8((*ptr)++);
988 uint32_t dst, src, saved;
991 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
993 src = atom_get_src(ctx, attr, ptr);
996 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
999 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
1001 uint8_t attr = U8((*ptr)++);
1002 uint32_t src, val, target;
1003 SDEBUG(" switch: ");
1004 src = atom_get_src(ctx, attr, ptr);
1005 while (U16(*ptr) != ATOM_CASE_END)
1006 if (U8(*ptr) == ATOM_CASE_MAGIC) {
1010 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
1014 SDEBUG(" target: %04X\n", target);
1015 *ptr = ctx->start + target;
1020 pr_info("Bad case\n");
1026 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1028 uint8_t attr = U8((*ptr)++);
1031 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1033 src = atom_get_src(ctx, attr, ptr);
1034 ctx->ctx->cs_equal = ((dst & src) == 0);
1035 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1038 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1040 uint8_t attr = U8((*ptr)++);
1041 uint32_t dst, src, saved;
1044 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1046 src = atom_get_src(ctx, attr, ptr);
1049 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1052 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1054 uint8_t val = U8((*ptr)++);
1055 SDEBUG("DEBUG output: 0x%02X\n", val);
1058 static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
1060 uint16_t val = U16(*ptr);
1062 SDEBUG("PROCESSDS output: 0x%02X\n", val);
1066 void (*func) (atom_exec_context *, int *, int);
1068 } opcode_table[ATOM_OP_CNT] = {
1071 atom_op_move, ATOM_ARG_REG}, {
1072 atom_op_move, ATOM_ARG_PS}, {
1073 atom_op_move, ATOM_ARG_WS}, {
1074 atom_op_move, ATOM_ARG_FB}, {
1075 atom_op_move, ATOM_ARG_PLL}, {
1076 atom_op_move, ATOM_ARG_MC}, {
1077 atom_op_and, ATOM_ARG_REG}, {
1078 atom_op_and, ATOM_ARG_PS}, {
1079 atom_op_and, ATOM_ARG_WS}, {
1080 atom_op_and, ATOM_ARG_FB}, {
1081 atom_op_and, ATOM_ARG_PLL}, {
1082 atom_op_and, ATOM_ARG_MC}, {
1083 atom_op_or, ATOM_ARG_REG}, {
1084 atom_op_or, ATOM_ARG_PS}, {
1085 atom_op_or, ATOM_ARG_WS}, {
1086 atom_op_or, ATOM_ARG_FB}, {
1087 atom_op_or, ATOM_ARG_PLL}, {
1088 atom_op_or, ATOM_ARG_MC}, {
1089 atom_op_shift_left, ATOM_ARG_REG}, {
1090 atom_op_shift_left, ATOM_ARG_PS}, {
1091 atom_op_shift_left, ATOM_ARG_WS}, {
1092 atom_op_shift_left, ATOM_ARG_FB}, {
1093 atom_op_shift_left, ATOM_ARG_PLL}, {
1094 atom_op_shift_left, ATOM_ARG_MC}, {
1095 atom_op_shift_right, ATOM_ARG_REG}, {
1096 atom_op_shift_right, ATOM_ARG_PS}, {
1097 atom_op_shift_right, ATOM_ARG_WS}, {
1098 atom_op_shift_right, ATOM_ARG_FB}, {
1099 atom_op_shift_right, ATOM_ARG_PLL}, {
1100 atom_op_shift_right, ATOM_ARG_MC}, {
1101 atom_op_mul, ATOM_ARG_REG}, {
1102 atom_op_mul, ATOM_ARG_PS}, {
1103 atom_op_mul, ATOM_ARG_WS}, {
1104 atom_op_mul, ATOM_ARG_FB}, {
1105 atom_op_mul, ATOM_ARG_PLL}, {
1106 atom_op_mul, ATOM_ARG_MC}, {
1107 atom_op_div, ATOM_ARG_REG}, {
1108 atom_op_div, ATOM_ARG_PS}, {
1109 atom_op_div, ATOM_ARG_WS}, {
1110 atom_op_div, ATOM_ARG_FB}, {
1111 atom_op_div, ATOM_ARG_PLL}, {
1112 atom_op_div, ATOM_ARG_MC}, {
1113 atom_op_add, ATOM_ARG_REG}, {
1114 atom_op_add, ATOM_ARG_PS}, {
1115 atom_op_add, ATOM_ARG_WS}, {
1116 atom_op_add, ATOM_ARG_FB}, {
1117 atom_op_add, ATOM_ARG_PLL}, {
1118 atom_op_add, ATOM_ARG_MC}, {
1119 atom_op_sub, ATOM_ARG_REG}, {
1120 atom_op_sub, ATOM_ARG_PS}, {
1121 atom_op_sub, ATOM_ARG_WS}, {
1122 atom_op_sub, ATOM_ARG_FB}, {
1123 atom_op_sub, ATOM_ARG_PLL}, {
1124 atom_op_sub, ATOM_ARG_MC}, {
1125 atom_op_setport, ATOM_PORT_ATI}, {
1126 atom_op_setport, ATOM_PORT_PCI}, {
1127 atom_op_setport, ATOM_PORT_SYSIO}, {
1128 atom_op_setregblock, 0}, {
1129 atom_op_setfbbase, 0}, {
1130 atom_op_compare, ATOM_ARG_REG}, {
1131 atom_op_compare, ATOM_ARG_PS}, {
1132 atom_op_compare, ATOM_ARG_WS}, {
1133 atom_op_compare, ATOM_ARG_FB}, {
1134 atom_op_compare, ATOM_ARG_PLL}, {
1135 atom_op_compare, ATOM_ARG_MC}, {
1136 atom_op_switch, 0}, {
1137 atom_op_jump, ATOM_COND_ALWAYS}, {
1138 atom_op_jump, ATOM_COND_EQUAL}, {
1139 atom_op_jump, ATOM_COND_BELOW}, {
1140 atom_op_jump, ATOM_COND_ABOVE}, {
1141 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1142 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1143 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1144 atom_op_test, ATOM_ARG_REG}, {
1145 atom_op_test, ATOM_ARG_PS}, {
1146 atom_op_test, ATOM_ARG_WS}, {
1147 atom_op_test, ATOM_ARG_FB}, {
1148 atom_op_test, ATOM_ARG_PLL}, {
1149 atom_op_test, ATOM_ARG_MC}, {
1150 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1151 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1152 atom_op_calltable, 0}, {
1153 atom_op_repeat, 0}, {
1154 atom_op_clear, ATOM_ARG_REG}, {
1155 atom_op_clear, ATOM_ARG_PS}, {
1156 atom_op_clear, ATOM_ARG_WS}, {
1157 atom_op_clear, ATOM_ARG_FB}, {
1158 atom_op_clear, ATOM_ARG_PLL}, {
1159 atom_op_clear, ATOM_ARG_MC}, {
1162 atom_op_mask, ATOM_ARG_REG}, {
1163 atom_op_mask, ATOM_ARG_PS}, {
1164 atom_op_mask, ATOM_ARG_WS}, {
1165 atom_op_mask, ATOM_ARG_FB}, {
1166 atom_op_mask, ATOM_ARG_PLL}, {
1167 atom_op_mask, ATOM_ARG_MC}, {
1168 atom_op_postcard, 0}, {
1170 atom_op_savereg, 0}, {
1171 atom_op_restorereg, 0}, {
1172 atom_op_setdatablock, 0}, {
1173 atom_op_xor, ATOM_ARG_REG}, {
1174 atom_op_xor, ATOM_ARG_PS}, {
1175 atom_op_xor, ATOM_ARG_WS}, {
1176 atom_op_xor, ATOM_ARG_FB}, {
1177 atom_op_xor, ATOM_ARG_PLL}, {
1178 atom_op_xor, ATOM_ARG_MC}, {
1179 atom_op_shl, ATOM_ARG_REG}, {
1180 atom_op_shl, ATOM_ARG_PS}, {
1181 atom_op_shl, ATOM_ARG_WS}, {
1182 atom_op_shl, ATOM_ARG_FB}, {
1183 atom_op_shl, ATOM_ARG_PLL}, {
1184 atom_op_shl, ATOM_ARG_MC}, {
1185 atom_op_shr, ATOM_ARG_REG}, {
1186 atom_op_shr, ATOM_ARG_PS}, {
1187 atom_op_shr, ATOM_ARG_WS}, {
1188 atom_op_shr, ATOM_ARG_FB}, {
1189 atom_op_shr, ATOM_ARG_PLL}, {
1190 atom_op_shr, ATOM_ARG_MC}, {
1191 atom_op_debug, 0}, {
1192 atom_op_processds, 0}, {
1193 atom_op_mul32, ATOM_ARG_PS}, {
1194 atom_op_mul32, ATOM_ARG_WS}, {
1195 atom_op_div32, ATOM_ARG_PS}, {
1196 atom_op_div32, ATOM_ARG_WS},
1199 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1201 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1202 int len, ws, ps, ptr;
1204 atom_exec_context ectx;
1210 len = CU16(base + ATOM_CT_SIZE_PTR);
1211 ws = CU8(base + ATOM_CT_WS_PTR);
1212 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1213 ptr = base + ATOM_CT_CODE_PTR;
1215 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1218 ectx.ps_shift = ps / 4;
1224 ectx.ws = kcalloc(4, ws, GFP_ATOMIC);
1231 if (op < ATOM_OP_NAMES_CNT)
1232 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1234 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1236 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1237 base, len, ws, ps, ptr - 1);
1242 if (op < ATOM_OP_CNT && op > 0)
1243 opcode_table[op].func(&ectx, &ptr,
1244 opcode_table[op].arg);
1248 if (op == ATOM_OP_EOT)
1260 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1264 mutex_lock(&ctx->mutex);
1265 /* reset data block */
1266 ctx->data_block = 0;
1267 /* reset reg block */
1269 /* reset fb window */
1272 ctx->io_mode = ATOM_IO_MM;
1276 r = amdgpu_atom_execute_table_locked(ctx, index, params);
1277 mutex_unlock(&ctx->mutex);
1281 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1283 static void atom_index_iio(struct atom_context *ctx, int base)
1285 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1288 while (CU8(base) == ATOM_IIO_START) {
1289 ctx->iio[CU8(base + 1)] = base + 2;
1291 while (CU8(base) != ATOM_IIO_END)
1292 base += atom_iio_len[CU8(base)];
1297 struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
1300 struct atom_context *ctx =
1301 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1311 if (CU16(0) != ATOM_BIOS_MAGIC) {
1312 pr_info("Invalid BIOS magic\n");
1317 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1318 strlen(ATOM_ATI_MAGIC))) {
1319 pr_info("Invalid ATI magic\n");
1324 base = CU16(ATOM_ROM_TABLE_PTR);
1326 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1327 strlen(ATOM_ROM_MAGIC))) {
1328 pr_info("Invalid ATOM magic\n");
1333 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1334 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1335 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1337 amdgpu_atom_destroy(ctx);
1341 idx = CU16(ATOM_ROM_PART_NUMBER_PTR);
1347 pr_info("ATOM BIOS: %s\n", str);
1348 strlcpy(ctx->vbios_version, str, sizeof(ctx->vbios_version));
1355 int amdgpu_atom_asic_init(struct atom_context *ctx)
1357 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1363 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1364 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1365 if (!ps[0] || !ps[1])
1368 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1370 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps);
1379 void amdgpu_atom_destroy(struct atom_context *ctx)
1385 bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
1386 uint16_t * size, uint8_t * frev, uint8_t * crev,
1387 uint16_t * data_start)
1389 int offset = index * 2 + 4;
1390 int idx = CU16(ctx->data_table + offset);
1391 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1399 *frev = CU8(idx + 2);
1401 *crev = CU8(idx + 3);
1406 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1409 int offset = index * 2 + 4;
1410 int idx = CU16(ctx->cmd_table + offset);
1411 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1417 *frev = CU8(idx + 2);
1419 *crev = CU8(idx + 3);