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 <linux/string_helpers.h>
30 #include <linux/unaligned.h>
32 #include <drm/drm_util.h>
36 #include "atomfirmware.h"
38 #include "atom-names.h"
39 #include "atom-bits.h"
42 #define ATOM_COND_ABOVE 0
43 #define ATOM_COND_ABOVEOREQUAL 1
44 #define ATOM_COND_ALWAYS 2
45 #define ATOM_COND_BELOW 3
46 #define ATOM_COND_BELOWOREQUAL 4
47 #define ATOM_COND_EQUAL 5
48 #define ATOM_COND_NOTEQUAL 6
50 #define ATOM_PORT_ATI 0
51 #define ATOM_PORT_PCI 1
52 #define ATOM_PORT_SYSIO 2
54 #define ATOM_UNIT_MICROSEC 0
55 #define ATOM_UNIT_MILLISEC 1
60 #define ATOM_CMD_TIMEOUT_SEC 20
63 struct atom_context *ctx;
69 unsigned long last_jump_jiffies;
73 int amdgpu_atom_debug;
74 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size);
75 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size);
77 static uint32_t atom_arg_mask[8] =
78 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
80 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
82 static int atom_dst_to_src[8][4] = {
83 /* translate destination alignment field to the source alignment encoding */
93 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
95 static int debug_depth;
97 static void debug_print_spaces(int n)
103 #define DEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
104 #define SDEBUG(...) do if (amdgpu_atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
106 #define DEBUG(...) do { } while (0)
107 #define SDEBUG(...) do { } while (0)
110 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
111 uint32_t index, uint32_t data)
113 uint32_t temp = 0xCDCDCDCD;
121 temp = ctx->card->reg_read(ctx->card, CU16(base + 1));
125 ctx->card->reg_write(ctx->card, CU16(base + 1), temp);
130 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
136 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
140 case ATOM_IIO_MOVE_INDEX:
142 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
145 ((index >> CU8(base + 2)) &
146 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
150 case ATOM_IIO_MOVE_DATA:
152 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
155 ((data >> CU8(base + 2)) &
156 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
160 case ATOM_IIO_MOVE_ATTR:
162 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
166 io_attr >> CU8(base + 2)) & (0xFFFFFFFF >> (32 -
177 pr_info("Unknown IIO opcode\n");
182 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
183 int *ptr, uint32_t *saved, int print)
185 uint32_t idx, val = 0xCDCDCDCD, align, arg;
186 struct atom_context *gctx = ctx->ctx;
188 align = (attr >> 3) & 7;
194 DEBUG("REG[0x%04X]", idx);
195 idx += gctx->reg_block;
196 switch (gctx->io_mode) {
198 val = gctx->card->reg_read(gctx->card, idx);
201 pr_info("PCI registers are not implemented\n");
204 pr_info("SYSIO registers are not implemented\n");
207 if (!(gctx->io_mode & 0x80)) {
208 pr_info("Bad IO mode\n");
211 if (!gctx->iio[gctx->io_mode & 0x7F]) {
212 pr_info("Undefined indirect IO read method %d\n",
213 gctx->io_mode & 0x7F);
217 atom_iio_execute(gctx,
218 gctx->iio[gctx->io_mode & 0x7F],
225 /* get_unaligned_le32 avoids unaligned accesses from atombios
226 * tables, noticed on a DEC Alpha. */
227 if (idx < ctx->ps_size)
228 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
230 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
232 DEBUG("PS[0x%02X,0x%04X]", idx, val);
238 DEBUG("WS[0x%02X]", idx);
240 case ATOM_WS_QUOTIENT:
241 val = gctx->divmul[0];
243 case ATOM_WS_REMAINDER:
244 val = gctx->divmul[1];
246 case ATOM_WS_DATAPTR:
247 val = gctx->data_block;
252 case ATOM_WS_OR_MASK:
253 val = 1 << gctx->shift;
255 case ATOM_WS_AND_MASK:
256 val = ~(1 << gctx->shift);
258 case ATOM_WS_FB_WINDOW:
261 case ATOM_WS_ATTRIBUTES:
265 val = gctx->reg_block;
268 if (idx < ctx->ws_size)
271 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
278 if (gctx->data_block)
279 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
281 DEBUG("ID[0x%04X]", idx);
283 val = U32(idx + gctx->data_block);
288 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
289 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
290 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
293 val = gctx->scratch[(gctx->fb_base / 4) + idx];
295 DEBUG("FB[0x%02X]", idx);
303 DEBUG("IMM 0x%08X\n", val);
307 case ATOM_SRC_WORD16:
311 DEBUG("IMM 0x%04X\n", val);
315 case ATOM_SRC_BYTE16:
316 case ATOM_SRC_BYTE24:
320 DEBUG("IMM 0x%02X\n", val);
328 DEBUG("PLL[0x%02X]", idx);
329 val = gctx->card->pll_read(gctx->card, idx);
335 DEBUG("MC[0x%02X]", idx);
336 val = gctx->card->mc_read(gctx->card, idx);
341 val &= atom_arg_mask[align];
342 val >>= atom_arg_shift[align];
346 DEBUG(".[31:0] -> 0x%08X\n", val);
349 DEBUG(".[15:0] -> 0x%04X\n", val);
352 DEBUG(".[23:8] -> 0x%04X\n", val);
354 case ATOM_SRC_WORD16:
355 DEBUG(".[31:16] -> 0x%04X\n", val);
358 DEBUG(".[7:0] -> 0x%02X\n", val);
361 DEBUG(".[15:8] -> 0x%02X\n", val);
363 case ATOM_SRC_BYTE16:
364 DEBUG(".[23:16] -> 0x%02X\n", val);
366 case ATOM_SRC_BYTE24:
367 DEBUG(".[31:24] -> 0x%02X\n", val);
373 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
375 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
395 case ATOM_SRC_WORD16:
400 case ATOM_SRC_BYTE16:
401 case ATOM_SRC_BYTE24:
408 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
410 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
413 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
415 uint32_t val = 0xCDCDCDCD;
424 case ATOM_SRC_WORD16:
430 case ATOM_SRC_BYTE16:
431 case ATOM_SRC_BYTE24:
439 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
440 int *ptr, uint32_t *saved, int print)
442 return atom_get_src_int(ctx,
443 arg | atom_dst_to_src[(attr >> 3) &
444 7][(attr >> 6) & 3] << 3,
448 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
450 atom_skip_src_int(ctx,
451 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
455 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
456 int *ptr, uint32_t val, uint32_t saved)
459 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
461 struct atom_context *gctx = ctx->ctx;
462 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
463 val <<= atom_arg_shift[align];
464 val &= atom_arg_mask[align];
465 saved &= ~atom_arg_mask[align];
471 DEBUG("REG[0x%04X]", idx);
472 idx += gctx->reg_block;
473 switch (gctx->io_mode) {
476 gctx->card->reg_write(gctx->card, idx,
479 gctx->card->reg_write(gctx->card, idx, val);
482 pr_info("PCI registers are not implemented\n");
485 pr_info("SYSIO registers are not implemented\n");
488 if (!(gctx->io_mode & 0x80)) {
489 pr_info("Bad IO mode\n");
492 if (!gctx->iio[gctx->io_mode & 0xFF]) {
493 pr_info("Undefined indirect IO write method %d\n",
494 gctx->io_mode & 0x7F);
497 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
504 DEBUG("PS[0x%02X]", idx);
505 if (idx >= ctx->ps_size) {
506 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
509 ctx->ps[idx] = cpu_to_le32(val);
514 DEBUG("WS[0x%02X]", idx);
516 case ATOM_WS_QUOTIENT:
517 gctx->divmul[0] = val;
519 case ATOM_WS_REMAINDER:
520 gctx->divmul[1] = val;
522 case ATOM_WS_DATAPTR:
523 gctx->data_block = val;
528 case ATOM_WS_OR_MASK:
529 case ATOM_WS_AND_MASK:
531 case ATOM_WS_FB_WINDOW:
534 case ATOM_WS_ATTRIBUTES:
538 gctx->reg_block = val;
541 if (idx >= ctx->ws_size) {
542 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
551 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
552 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
553 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
555 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
556 DEBUG("FB[0x%02X]", idx);
561 DEBUG("PLL[0x%02X]", idx);
562 gctx->card->pll_write(gctx->card, idx, val);
567 DEBUG("MC[0x%02X]", idx);
568 gctx->card->mc_write(gctx->card, idx, val);
573 DEBUG(".[31:0] <- 0x%08X\n", old_val);
576 DEBUG(".[15:0] <- 0x%04X\n", old_val);
579 DEBUG(".[23:8] <- 0x%04X\n", old_val);
581 case ATOM_SRC_WORD16:
582 DEBUG(".[31:16] <- 0x%04X\n", old_val);
585 DEBUG(".[7:0] <- 0x%02X\n", old_val);
588 DEBUG(".[15:8] <- 0x%02X\n", old_val);
590 case ATOM_SRC_BYTE16:
591 DEBUG(".[23:16] <- 0x%02X\n", old_val);
593 case ATOM_SRC_BYTE24:
594 DEBUG(".[31:24] <- 0x%02X\n", old_val);
599 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
601 uint8_t attr = U8((*ptr)++);
602 uint32_t dst, src, saved;
605 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
607 src = atom_get_src(ctx, attr, ptr);
610 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
613 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
615 uint8_t attr = U8((*ptr)++);
616 uint32_t dst, src, saved;
619 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
621 src = atom_get_src(ctx, attr, ptr);
624 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
627 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
629 printk("ATOM BIOS beeped!\n");
632 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
634 int idx = U8((*ptr)++);
637 if (idx < ATOM_TABLE_NAMES_CNT)
638 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
640 SDEBUG(" table: %d\n", idx);
641 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
642 r = amdgpu_atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift, ctx->ps_size - ctx->ps_shift);
648 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
650 uint8_t attr = U8((*ptr)++);
654 attr |= atom_def_dst[attr >> 3] << 6;
655 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
657 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
660 static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
662 uint8_t attr = U8((*ptr)++);
665 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
667 src = atom_get_src(ctx, attr, ptr);
668 ctx->ctx->cs_equal = (dst == src);
669 ctx->ctx->cs_above = (dst > src);
670 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
671 ctx->ctx->cs_above ? "GT" : "LE");
674 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
676 unsigned count = U8((*ptr)++);
677 SDEBUG(" count: %d\n", count);
678 if (arg == ATOM_UNIT_MICROSEC)
680 else if (!drm_can_sleep())
686 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
688 uint8_t attr = U8((*ptr)++);
691 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
693 src = atom_get_src(ctx, attr, ptr);
695 ctx->ctx->divmul[0] = dst / src;
696 ctx->ctx->divmul[1] = dst % src;
698 ctx->ctx->divmul[0] = 0;
699 ctx->ctx->divmul[1] = 0;
703 static void atom_op_div32(atom_exec_context *ctx, int *ptr, int arg)
706 uint8_t attr = U8((*ptr)++);
709 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
711 src = atom_get_src(ctx, attr, ptr);
714 val64 |= ((uint64_t)ctx->ctx->divmul[1]) << 32;
716 ctx->ctx->divmul[0] = lower_32_bits(val64);
717 ctx->ctx->divmul[1] = upper_32_bits(val64);
719 ctx->ctx->divmul[0] = 0;
720 ctx->ctx->divmul[1] = 0;
724 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
726 /* functionally, a nop */
729 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
731 int execute = 0, target = U16(*ptr);
732 unsigned long cjiffies;
736 case ATOM_COND_ABOVE:
737 execute = ctx->ctx->cs_above;
739 case ATOM_COND_ABOVEOREQUAL:
740 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
742 case ATOM_COND_ALWAYS:
745 case ATOM_COND_BELOW:
746 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
748 case ATOM_COND_BELOWOREQUAL:
749 execute = !ctx->ctx->cs_above;
751 case ATOM_COND_EQUAL:
752 execute = ctx->ctx->cs_equal;
754 case ATOM_COND_NOTEQUAL:
755 execute = !ctx->ctx->cs_equal;
758 if (arg != ATOM_COND_ALWAYS)
759 SDEBUG(" taken: %s\n", str_yes_no(execute));
760 SDEBUG(" target: 0x%04X\n", target);
762 if (ctx->last_jump == (ctx->start + target)) {
764 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
765 cjiffies -= ctx->last_jump_jiffies;
766 if ((jiffies_to_msecs(cjiffies) > ATOM_CMD_TIMEOUT_SEC*1000)) {
767 DRM_ERROR("atombios stuck in loop for more than %dsecs aborting\n",
768 ATOM_CMD_TIMEOUT_SEC);
772 /* jiffies wrap around we will just wait a little longer */
773 ctx->last_jump_jiffies = jiffies;
776 ctx->last_jump = ctx->start + target;
777 ctx->last_jump_jiffies = jiffies;
779 *ptr = ctx->start + target;
783 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
785 uint8_t attr = U8((*ptr)++);
786 uint32_t dst, mask, src, saved;
789 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
790 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
791 SDEBUG(" mask: 0x%08x", mask);
793 src = atom_get_src(ctx, attr, ptr);
797 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
800 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
802 uint8_t attr = U8((*ptr)++);
805 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
806 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
808 atom_skip_dst(ctx, arg, attr, ptr);
812 src = atom_get_src(ctx, attr, ptr);
814 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
817 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
819 uint8_t attr = U8((*ptr)++);
822 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
824 src = atom_get_src(ctx, attr, ptr);
825 ctx->ctx->divmul[0] = dst * src;
828 static void atom_op_mul32(atom_exec_context *ctx, int *ptr, int arg)
831 uint8_t attr = U8((*ptr)++);
834 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
836 src = atom_get_src(ctx, attr, ptr);
837 val64 = (uint64_t)dst * (uint64_t)src;
838 ctx->ctx->divmul[0] = lower_32_bits(val64);
839 ctx->ctx->divmul[1] = upper_32_bits(val64);
842 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
847 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
849 uint8_t attr = U8((*ptr)++);
850 uint32_t dst, src, saved;
853 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
855 src = atom_get_src(ctx, attr, ptr);
858 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
861 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
863 uint8_t val = U8((*ptr)++);
864 SDEBUG("POST card output: 0x%02X\n", val);
867 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
869 pr_info("unimplemented!\n");
872 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
874 pr_info("unimplemented!\n");
877 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
879 pr_info("unimplemented!\n");
882 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
886 SDEBUG(" block: %d\n", idx);
888 ctx->ctx->data_block = 0;
890 ctx->ctx->data_block = ctx->start;
892 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
893 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
896 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
898 uint8_t attr = U8((*ptr)++);
899 SDEBUG(" fb_base: ");
900 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
903 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
909 if (port < ATOM_IO_NAMES_CNT)
910 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
912 SDEBUG(" port: %d\n", port);
914 ctx->ctx->io_mode = ATOM_IO_MM;
916 ctx->ctx->io_mode = ATOM_IO_IIO | port;
920 ctx->ctx->io_mode = ATOM_IO_PCI;
923 case ATOM_PORT_SYSIO:
924 ctx->ctx->io_mode = ATOM_IO_SYSIO;
930 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
932 ctx->ctx->reg_block = U16(*ptr);
934 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
937 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
939 uint8_t attr = U8((*ptr)++), shift;
943 attr |= atom_def_dst[attr >> 3] << 6;
945 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
946 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
947 SDEBUG(" shift: %d\n", shift);
950 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
953 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
955 uint8_t attr = U8((*ptr)++), shift;
959 attr |= atom_def_dst[attr >> 3] << 6;
961 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
962 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
963 SDEBUG(" shift: %d\n", shift);
966 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
969 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
971 uint8_t attr = U8((*ptr)++), shift;
974 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
976 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
977 /* op needs to full dst value */
979 shift = atom_get_src(ctx, attr, ptr);
980 SDEBUG(" shift: %d\n", shift);
982 dst &= atom_arg_mask[dst_align];
983 dst >>= atom_arg_shift[dst_align];
985 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
988 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
990 uint8_t attr = U8((*ptr)++), shift;
993 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
995 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
996 /* op needs to full dst value */
998 shift = atom_get_src(ctx, attr, ptr);
999 SDEBUG(" shift: %d\n", shift);
1001 dst &= atom_arg_mask[dst_align];
1002 dst >>= atom_arg_shift[dst_align];
1004 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1007 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
1009 uint8_t attr = U8((*ptr)++);
1010 uint32_t dst, src, saved;
1013 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1015 src = atom_get_src(ctx, attr, ptr);
1018 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1021 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
1023 uint8_t attr = U8((*ptr)++);
1024 uint32_t src, val, target;
1025 SDEBUG(" switch: ");
1026 src = atom_get_src(ctx, attr, ptr);
1027 while (U16(*ptr) != ATOM_CASE_END)
1028 if (U8(*ptr) == ATOM_CASE_MAGIC) {
1032 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
1036 SDEBUG(" target: %04X\n", target);
1037 *ptr = ctx->start + target;
1042 pr_info("Bad case\n");
1048 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1050 uint8_t attr = U8((*ptr)++);
1053 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1055 src = atom_get_src(ctx, attr, ptr);
1056 ctx->ctx->cs_equal = ((dst & src) == 0);
1057 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1060 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1062 uint8_t attr = U8((*ptr)++);
1063 uint32_t dst, src, saved;
1066 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1068 src = atom_get_src(ctx, attr, ptr);
1071 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1074 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1076 uint8_t val = U8((*ptr)++);
1077 SDEBUG("DEBUG output: 0x%02X\n", val);
1080 static void atom_op_processds(atom_exec_context *ctx, int *ptr, int arg)
1082 uint16_t val = U16(*ptr);
1084 SDEBUG("PROCESSDS output: 0x%02X\n", val);
1088 void (*func) (atom_exec_context *, int *, int);
1090 } opcode_table[ATOM_OP_CNT] = {
1093 atom_op_move, ATOM_ARG_REG}, {
1094 atom_op_move, ATOM_ARG_PS}, {
1095 atom_op_move, ATOM_ARG_WS}, {
1096 atom_op_move, ATOM_ARG_FB}, {
1097 atom_op_move, ATOM_ARG_PLL}, {
1098 atom_op_move, ATOM_ARG_MC}, {
1099 atom_op_and, ATOM_ARG_REG}, {
1100 atom_op_and, ATOM_ARG_PS}, {
1101 atom_op_and, ATOM_ARG_WS}, {
1102 atom_op_and, ATOM_ARG_FB}, {
1103 atom_op_and, ATOM_ARG_PLL}, {
1104 atom_op_and, ATOM_ARG_MC}, {
1105 atom_op_or, ATOM_ARG_REG}, {
1106 atom_op_or, ATOM_ARG_PS}, {
1107 atom_op_or, ATOM_ARG_WS}, {
1108 atom_op_or, ATOM_ARG_FB}, {
1109 atom_op_or, ATOM_ARG_PLL}, {
1110 atom_op_or, ATOM_ARG_MC}, {
1111 atom_op_shift_left, ATOM_ARG_REG}, {
1112 atom_op_shift_left, ATOM_ARG_PS}, {
1113 atom_op_shift_left, ATOM_ARG_WS}, {
1114 atom_op_shift_left, ATOM_ARG_FB}, {
1115 atom_op_shift_left, ATOM_ARG_PLL}, {
1116 atom_op_shift_left, ATOM_ARG_MC}, {
1117 atom_op_shift_right, ATOM_ARG_REG}, {
1118 atom_op_shift_right, ATOM_ARG_PS}, {
1119 atom_op_shift_right, ATOM_ARG_WS}, {
1120 atom_op_shift_right, ATOM_ARG_FB}, {
1121 atom_op_shift_right, ATOM_ARG_PLL}, {
1122 atom_op_shift_right, ATOM_ARG_MC}, {
1123 atom_op_mul, ATOM_ARG_REG}, {
1124 atom_op_mul, ATOM_ARG_PS}, {
1125 atom_op_mul, ATOM_ARG_WS}, {
1126 atom_op_mul, ATOM_ARG_FB}, {
1127 atom_op_mul, ATOM_ARG_PLL}, {
1128 atom_op_mul, ATOM_ARG_MC}, {
1129 atom_op_div, ATOM_ARG_REG}, {
1130 atom_op_div, ATOM_ARG_PS}, {
1131 atom_op_div, ATOM_ARG_WS}, {
1132 atom_op_div, ATOM_ARG_FB}, {
1133 atom_op_div, ATOM_ARG_PLL}, {
1134 atom_op_div, ATOM_ARG_MC}, {
1135 atom_op_add, ATOM_ARG_REG}, {
1136 atom_op_add, ATOM_ARG_PS}, {
1137 atom_op_add, ATOM_ARG_WS}, {
1138 atom_op_add, ATOM_ARG_FB}, {
1139 atom_op_add, ATOM_ARG_PLL}, {
1140 atom_op_add, ATOM_ARG_MC}, {
1141 atom_op_sub, ATOM_ARG_REG}, {
1142 atom_op_sub, ATOM_ARG_PS}, {
1143 atom_op_sub, ATOM_ARG_WS}, {
1144 atom_op_sub, ATOM_ARG_FB}, {
1145 atom_op_sub, ATOM_ARG_PLL}, {
1146 atom_op_sub, ATOM_ARG_MC}, {
1147 atom_op_setport, ATOM_PORT_ATI}, {
1148 atom_op_setport, ATOM_PORT_PCI}, {
1149 atom_op_setport, ATOM_PORT_SYSIO}, {
1150 atom_op_setregblock, 0}, {
1151 atom_op_setfbbase, 0}, {
1152 atom_op_compare, ATOM_ARG_REG}, {
1153 atom_op_compare, ATOM_ARG_PS}, {
1154 atom_op_compare, ATOM_ARG_WS}, {
1155 atom_op_compare, ATOM_ARG_FB}, {
1156 atom_op_compare, ATOM_ARG_PLL}, {
1157 atom_op_compare, ATOM_ARG_MC}, {
1158 atom_op_switch, 0}, {
1159 atom_op_jump, ATOM_COND_ALWAYS}, {
1160 atom_op_jump, ATOM_COND_EQUAL}, {
1161 atom_op_jump, ATOM_COND_BELOW}, {
1162 atom_op_jump, ATOM_COND_ABOVE}, {
1163 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1164 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1165 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1166 atom_op_test, ATOM_ARG_REG}, {
1167 atom_op_test, ATOM_ARG_PS}, {
1168 atom_op_test, ATOM_ARG_WS}, {
1169 atom_op_test, ATOM_ARG_FB}, {
1170 atom_op_test, ATOM_ARG_PLL}, {
1171 atom_op_test, ATOM_ARG_MC}, {
1172 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1173 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1174 atom_op_calltable, 0}, {
1175 atom_op_repeat, 0}, {
1176 atom_op_clear, ATOM_ARG_REG}, {
1177 atom_op_clear, ATOM_ARG_PS}, {
1178 atom_op_clear, ATOM_ARG_WS}, {
1179 atom_op_clear, ATOM_ARG_FB}, {
1180 atom_op_clear, ATOM_ARG_PLL}, {
1181 atom_op_clear, ATOM_ARG_MC}, {
1184 atom_op_mask, ATOM_ARG_REG}, {
1185 atom_op_mask, ATOM_ARG_PS}, {
1186 atom_op_mask, ATOM_ARG_WS}, {
1187 atom_op_mask, ATOM_ARG_FB}, {
1188 atom_op_mask, ATOM_ARG_PLL}, {
1189 atom_op_mask, ATOM_ARG_MC}, {
1190 atom_op_postcard, 0}, {
1192 atom_op_savereg, 0}, {
1193 atom_op_restorereg, 0}, {
1194 atom_op_setdatablock, 0}, {
1195 atom_op_xor, ATOM_ARG_REG}, {
1196 atom_op_xor, ATOM_ARG_PS}, {
1197 atom_op_xor, ATOM_ARG_WS}, {
1198 atom_op_xor, ATOM_ARG_FB}, {
1199 atom_op_xor, ATOM_ARG_PLL}, {
1200 atom_op_xor, ATOM_ARG_MC}, {
1201 atom_op_shl, ATOM_ARG_REG}, {
1202 atom_op_shl, ATOM_ARG_PS}, {
1203 atom_op_shl, ATOM_ARG_WS}, {
1204 atom_op_shl, ATOM_ARG_FB}, {
1205 atom_op_shl, ATOM_ARG_PLL}, {
1206 atom_op_shl, ATOM_ARG_MC}, {
1207 atom_op_shr, ATOM_ARG_REG}, {
1208 atom_op_shr, ATOM_ARG_PS}, {
1209 atom_op_shr, ATOM_ARG_WS}, {
1210 atom_op_shr, ATOM_ARG_FB}, {
1211 atom_op_shr, ATOM_ARG_PLL}, {
1212 atom_op_shr, ATOM_ARG_MC}, {
1213 atom_op_debug, 0}, {
1214 atom_op_processds, 0}, {
1215 atom_op_mul32, ATOM_ARG_PS}, {
1216 atom_op_mul32, ATOM_ARG_WS}, {
1217 atom_op_div32, ATOM_ARG_PS}, {
1218 atom_op_div32, ATOM_ARG_WS},
1221 static int amdgpu_atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1223 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1224 int len, ws, ps, ptr;
1226 atom_exec_context ectx;
1232 len = CU16(base + ATOM_CT_SIZE_PTR);
1233 ws = CU8(base + ATOM_CT_WS_PTR);
1234 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1235 ptr = base + ATOM_CT_CODE_PTR;
1237 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1240 ectx.ps_shift = ps / 4;
1243 ectx.ps_size = params_size;
1246 ectx.last_jump_jiffies = 0;
1248 ectx.ws = kcalloc(4, ws, GFP_KERNEL);
1258 if (op < ATOM_OP_NAMES_CNT)
1259 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1261 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1263 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1264 base, len, ws, ps, ptr - 1);
1269 if (op < ATOM_OP_CNT && op > 0)
1270 opcode_table[op].func(&ectx, &ptr,
1271 opcode_table[op].arg);
1275 if (op == ATOM_OP_EOT)
1287 int amdgpu_atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1291 mutex_lock(&ctx->mutex);
1292 /* reset data block */
1293 ctx->data_block = 0;
1294 /* reset reg block */
1296 /* reset fb window */
1299 ctx->io_mode = ATOM_IO_MM;
1303 r = amdgpu_atom_execute_table_locked(ctx, index, params, params_size);
1304 mutex_unlock(&ctx->mutex);
1308 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1310 static void atom_index_iio(struct atom_context *ctx, int base)
1312 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1315 while (CU8(base) == ATOM_IIO_START) {
1316 ctx->iio[CU8(base + 1)] = base + 2;
1318 while (CU8(base) != ATOM_IIO_END)
1319 base += atom_iio_len[CU8(base)];
1324 static void atom_get_vbios_name(struct atom_context *ctx)
1326 unsigned char *p_rom;
1327 unsigned char str_num;
1328 unsigned short off_to_vbios_str;
1329 unsigned char *c_ptr;
1333 const char *na = "--N/A--";
1338 str_num = *(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS);
1341 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1343 c_ptr = (unsigned char *)(p_rom + off_to_vbios_str);
1345 /* do not know where to find name */
1346 memcpy(ctx->name, na, 7);
1352 * skip the atombios strings, usually 4
1353 * 1st is P/N, 2nd is ASIC, 3rd is PCI type, 4th is Memory type
1355 for (i = 0; i < str_num; i++) {
1361 /* skip the following 2 chars: 0x0D 0x0A */
1364 name_size = strnlen(c_ptr, STRLEN_LONG - 1);
1365 memcpy(ctx->name, c_ptr, name_size);
1366 back = ctx->name + name_size;
1367 while ((*--back) == ' ')
1372 static void atom_get_vbios_date(struct atom_context *ctx)
1374 unsigned char *p_rom;
1375 unsigned char *date_in_rom;
1379 date_in_rom = p_rom + OFFSET_TO_VBIOS_DATE;
1383 ctx->date[2] = date_in_rom[6];
1384 ctx->date[3] = date_in_rom[7];
1386 ctx->date[5] = date_in_rom[0];
1387 ctx->date[6] = date_in_rom[1];
1389 ctx->date[8] = date_in_rom[3];
1390 ctx->date[9] = date_in_rom[4];
1391 ctx->date[10] = ' ';
1392 ctx->date[11] = date_in_rom[9];
1393 ctx->date[12] = date_in_rom[10];
1394 ctx->date[13] = date_in_rom[11];
1395 ctx->date[14] = date_in_rom[12];
1396 ctx->date[15] = date_in_rom[13];
1397 ctx->date[16] = '\0';
1400 static unsigned char *atom_find_str_in_rom(struct atom_context *ctx, char *str, int start,
1401 int end, int maxlen)
1403 unsigned long str_off;
1404 unsigned char *p_rom;
1405 unsigned short str_len;
1408 str_len = strnlen(str, maxlen);
1411 for (; start <= end; ++start) {
1412 for (str_off = 0; str_off < str_len; ++str_off) {
1413 if (str[str_off] != *(p_rom + start + str_off))
1417 if (str_off == str_len || str[str_off] == 0)
1418 return p_rom + start;
1423 static void atom_get_vbios_pn(struct atom_context *ctx)
1425 unsigned char *p_rom;
1426 unsigned short off_to_vbios_str;
1427 unsigned char *vbios_str;
1430 off_to_vbios_str = 0;
1433 if (*(p_rom + OFFSET_TO_GET_ATOMBIOS_NUMBER_OF_STRINGS) != 0) {
1435 *(unsigned short *)(p_rom + OFFSET_TO_GET_ATOMBIOS_STRING_START);
1437 vbios_str = (unsigned char *)(p_rom + off_to_vbios_str);
1439 vbios_str = p_rom + OFFSET_TO_VBIOS_PART_NUMBER;
1442 if (*vbios_str == 0) {
1443 vbios_str = atom_find_str_in_rom(ctx, BIOS_ATOM_PREFIX, 3, 1024, 64);
1444 if (vbios_str == NULL)
1445 vbios_str += sizeof(BIOS_ATOM_PREFIX) - 1;
1447 if (vbios_str != NULL && *vbios_str == 0)
1450 if (vbios_str != NULL) {
1452 while ((count < BIOS_STRING_LENGTH) && vbios_str[count] >= ' ' &&
1453 vbios_str[count] <= 'z') {
1454 ctx->vbios_pn[count] = vbios_str[count];
1458 ctx->vbios_pn[count] = 0;
1461 pr_info("ATOM BIOS: %s\n", ctx->vbios_pn);
1464 static void atom_get_vbios_version(struct atom_context *ctx)
1466 unsigned short start = 3, end;
1467 unsigned char *vbios_ver;
1468 unsigned char *p_rom;
1471 /* Search from strings offset if it's present */
1472 start = *(unsigned short *)(p_rom +
1473 OFFSET_TO_GET_ATOMBIOS_STRING_START);
1475 /* Search till atom rom header start point */
1476 end = *(unsigned short *)(p_rom + OFFSET_TO_ATOM_ROM_HEADER_POINTER);
1478 /* Use hardcoded offsets, if the offsets are not populated */
1484 /* find anchor ATOMBIOSBK-AMD */
1486 atom_find_str_in_rom(ctx, BIOS_VERSION_PREFIX, start, end, 64);
1487 if (vbios_ver != NULL) {
1488 /* skip ATOMBIOSBK-AMD VER */
1490 memcpy(ctx->vbios_ver_str, vbios_ver, STRLEN_NORMAL);
1492 ctx->vbios_ver_str[0] = '\0';
1496 struct atom_context *amdgpu_atom_parse(struct card_info *card, void *bios)
1499 struct atom_context *ctx =
1500 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1501 struct _ATOM_ROM_HEADER *atom_rom_header;
1502 struct _ATOM_MASTER_DATA_TABLE *master_table;
1503 struct _ATOM_FIRMWARE_INFO *atom_fw_info;
1511 if (CU16(0) != ATOM_BIOS_MAGIC) {
1512 pr_info("Invalid BIOS magic\n");
1517 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1518 strlen(ATOM_ATI_MAGIC))) {
1519 pr_info("Invalid ATI magic\n");
1524 base = CU16(ATOM_ROM_TABLE_PTR);
1526 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1527 strlen(ATOM_ROM_MAGIC))) {
1528 pr_info("Invalid ATOM magic\n");
1533 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1534 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1535 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1537 amdgpu_atom_destroy(ctx);
1541 atom_rom_header = (struct _ATOM_ROM_HEADER *)CSTR(base);
1542 if (atom_rom_header->usMasterDataTableOffset != 0) {
1543 master_table = (struct _ATOM_MASTER_DATA_TABLE *)
1544 CSTR(atom_rom_header->usMasterDataTableOffset);
1545 if (master_table->ListOfDataTables.FirmwareInfo != 0) {
1546 atom_fw_info = (struct _ATOM_FIRMWARE_INFO *)
1547 CSTR(master_table->ListOfDataTables.FirmwareInfo);
1548 ctx->version = atom_fw_info->ulFirmwareRevision;
1552 atom_get_vbios_name(ctx);
1553 atom_get_vbios_pn(ctx);
1554 atom_get_vbios_date(ctx);
1555 atom_get_vbios_version(ctx);
1560 int amdgpu_atom_asic_init(struct atom_context *ctx)
1562 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1568 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1569 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1570 if (!ps[0] || !ps[1])
1573 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1575 ret = amdgpu_atom_execute_table(ctx, ATOM_CMD_INIT, ps, 16);
1584 void amdgpu_atom_destroy(struct atom_context *ctx)
1590 bool amdgpu_atom_parse_data_header(struct atom_context *ctx, int index,
1591 uint16_t *size, uint8_t *frev, uint8_t *crev,
1592 uint16_t *data_start)
1594 int offset = index * 2 + 4;
1595 int idx = CU16(ctx->data_table + offset);
1596 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1604 *frev = CU8(idx + 2);
1606 *crev = CU8(idx + 3);
1611 bool amdgpu_atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *frev,
1614 int offset = index * 2 + 4;
1615 int idx = CU16(ctx->cmd_table + offset);
1616 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1622 *frev = CU8(idx + 2);
1624 *crev = CU8(idx + 3);