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_device.h>
33 #include <drm/drm_util.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
61 struct atom_context *ctx;
67 unsigned long last_jump_jiffies;
72 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size);
73 int atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size);
75 static uint32_t atom_arg_mask[8] = {
76 0xFFFFFFFF, 0x0000FFFF, 0x00FFFF00, 0xFFFF0000,
77 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
79 static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
81 static int atom_dst_to_src[8][4] = {
82 /* translate destination alignment field to the source alignment encoding */
92 static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
94 static int debug_depth = 0;
96 static void debug_print_spaces(int n)
102 #define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
103 #define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
105 #define DEBUG(...) do { } while (0)
106 #define SDEBUG(...) do { } while (0)
109 static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
110 uint32_t index, uint32_t data)
112 struct radeon_device *rdev = ctx->card->dev->dev_private;
113 uint32_t temp = 0xCDCDCDCD;
121 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1));
125 if (rdev->family == CHIP_RV515)
126 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1));
127 ctx->card->ioreg_write(ctx->card, CU16(base + 1), temp);
132 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
138 (0xFFFFFFFF >> (32 - CU8(base + 1))) << CU8(base +
142 case ATOM_IIO_MOVE_INDEX:
144 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
147 ((index >> CU8(base + 2)) &
148 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
152 case ATOM_IIO_MOVE_DATA:
154 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
157 ((data >> CU8(base + 2)) &
158 (0xFFFFFFFF >> (32 - CU8(base + 1)))) << CU8(base +
162 case ATOM_IIO_MOVE_ATTR:
164 ~((0xFFFFFFFF >> (32 - CU8(base + 1))) <<
167 ((ctx->io_attr >> CU8(base + 2)) &
168 (0xFFFFFFFF >> (32 - CU8(base + 1)))) <<
175 pr_info("Unknown IIO opcode\n");
180 static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
181 int *ptr, uint32_t *saved, int print)
183 uint32_t idx, val = 0xCDCDCDCD, align, arg;
184 struct atom_context *gctx = ctx->ctx;
186 align = (attr >> 3) & 7;
192 DEBUG("REG[0x%04X]", idx);
193 idx += gctx->reg_block;
194 switch (gctx->io_mode) {
196 val = gctx->card->reg_read(gctx->card, idx);
199 pr_info("PCI registers are not implemented\n");
202 pr_info("SYSIO registers are not implemented\n");
205 if (!(gctx->io_mode & 0x80)) {
206 pr_info("Bad IO mode\n");
209 if (!gctx->iio[gctx->io_mode & 0x7F]) {
210 pr_info("Undefined indirect IO read method %d\n",
211 gctx->io_mode & 0x7F);
215 atom_iio_execute(gctx,
216 gctx->iio[gctx->io_mode & 0x7F],
223 /* get_unaligned_le32 avoids unaligned accesses from atombios
224 * tables, noticed on a DEC Alpha. */
225 if (idx < ctx->ps_size)
226 val = get_unaligned_le32((u32 *)&ctx->ps[idx]);
228 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
230 DEBUG("PS[0x%02X,0x%04X]", idx, val);
236 DEBUG("WS[0x%02X]", idx);
238 case ATOM_WS_QUOTIENT:
239 val = gctx->divmul[0];
241 case ATOM_WS_REMAINDER:
242 val = gctx->divmul[1];
244 case ATOM_WS_DATAPTR:
245 val = gctx->data_block;
250 case ATOM_WS_OR_MASK:
251 val = 1 << gctx->shift;
253 case ATOM_WS_AND_MASK:
254 val = ~(1 << gctx->shift);
256 case ATOM_WS_FB_WINDOW:
259 case ATOM_WS_ATTRIBUTES:
263 val = gctx->reg_block;
266 if (idx < ctx->ws_size)
269 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
276 if (gctx->data_block)
277 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block);
279 DEBUG("ID[0x%04X]", idx);
281 val = U32(idx + gctx->data_block);
286 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
287 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",
288 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
291 val = gctx->scratch[(gctx->fb_base / 4) + idx];
293 DEBUG("FB[0x%02X]", idx);
301 DEBUG("IMM 0x%08X\n", val);
305 case ATOM_SRC_WORD16:
309 DEBUG("IMM 0x%04X\n", val);
313 case ATOM_SRC_BYTE16:
314 case ATOM_SRC_BYTE24:
318 DEBUG("IMM 0x%02X\n", val);
326 DEBUG("PLL[0x%02X]", idx);
327 val = gctx->card->pll_read(gctx->card, idx);
333 DEBUG("MC[0x%02X]", idx);
334 val = gctx->card->mc_read(gctx->card, idx);
339 val &= atom_arg_mask[align];
340 val >>= atom_arg_shift[align];
344 DEBUG(".[31:0] -> 0x%08X\n", val);
347 DEBUG(".[15:0] -> 0x%04X\n", val);
350 DEBUG(".[23:8] -> 0x%04X\n", val);
352 case ATOM_SRC_WORD16:
353 DEBUG(".[31:16] -> 0x%04X\n", val);
356 DEBUG(".[7:0] -> 0x%02X\n", val);
359 DEBUG(".[15:8] -> 0x%02X\n", val);
361 case ATOM_SRC_BYTE16:
362 DEBUG(".[23:16] -> 0x%02X\n", val);
364 case ATOM_SRC_BYTE24:
365 DEBUG(".[31:24] -> 0x%02X\n", val);
371 static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
373 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
393 case ATOM_SRC_WORD16:
398 case ATOM_SRC_BYTE16:
399 case ATOM_SRC_BYTE24:
407 static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
409 return atom_get_src_int(ctx, attr, ptr, NULL, 1);
412 static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
414 uint32_t val = 0xCDCDCDCD;
423 case ATOM_SRC_WORD16:
429 case ATOM_SRC_BYTE16:
430 case ATOM_SRC_BYTE24:
438 static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
439 int *ptr, uint32_t *saved, int print)
441 return atom_get_src_int(ctx,
442 arg | atom_dst_to_src[(attr >> 3) &
443 7][(attr >> 6) & 3] << 3,
447 static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
449 atom_skip_src_int(ctx,
450 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
454 static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
455 int *ptr, uint32_t val, uint32_t saved)
458 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
460 struct atom_context *gctx = ctx->ctx;
461 old_val &= atom_arg_mask[align] >> atom_arg_shift[align];
462 val <<= atom_arg_shift[align];
463 val &= atom_arg_mask[align];
464 saved &= ~atom_arg_mask[align];
470 DEBUG("REG[0x%04X]", idx);
471 idx += gctx->reg_block;
472 switch (gctx->io_mode) {
475 gctx->card->reg_write(gctx->card, idx,
478 gctx->card->reg_write(gctx->card, idx, val);
481 pr_info("PCI registers are not implemented\n");
484 pr_info("SYSIO registers are not implemented\n");
487 if (!(gctx->io_mode & 0x80)) {
488 pr_info("Bad IO mode\n");
491 if (!gctx->iio[gctx->io_mode & 0xFF]) {
492 pr_info("Undefined indirect IO write method %d\n",
493 gctx->io_mode & 0x7F);
496 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
503 DEBUG("PS[0x%02X]", idx);
504 if (idx >= ctx->ps_size) {
505 pr_info("PS index out of range: %i > %i\n", idx, ctx->ps_size);
508 ctx->ps[idx] = cpu_to_le32(val);
513 DEBUG("WS[0x%02X]", idx);
515 case ATOM_WS_QUOTIENT:
516 gctx->divmul[0] = val;
518 case ATOM_WS_REMAINDER:
519 gctx->divmul[1] = val;
521 case ATOM_WS_DATAPTR:
522 gctx->data_block = val;
527 case ATOM_WS_OR_MASK:
528 case ATOM_WS_AND_MASK:
530 case ATOM_WS_FB_WINDOW:
533 case ATOM_WS_ATTRIBUTES:
537 gctx->reg_block = val;
540 if (idx >= ctx->ws_size) {
541 pr_info("WS index out of range: %i > %i\n", idx, ctx->ws_size);
550 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
551 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",
552 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
554 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
555 DEBUG("FB[0x%02X]", idx);
560 DEBUG("PLL[0x%02X]", idx);
561 gctx->card->pll_write(gctx->card, idx, val);
566 DEBUG("MC[0x%02X]", idx);
567 gctx->card->mc_write(gctx->card, idx, val);
572 DEBUG(".[31:0] <- 0x%08X\n", old_val);
575 DEBUG(".[15:0] <- 0x%04X\n", old_val);
578 DEBUG(".[23:8] <- 0x%04X\n", old_val);
580 case ATOM_SRC_WORD16:
581 DEBUG(".[31:16] <- 0x%04X\n", old_val);
584 DEBUG(".[7:0] <- 0x%02X\n", old_val);
587 DEBUG(".[15:8] <- 0x%02X\n", old_val);
589 case ATOM_SRC_BYTE16:
590 DEBUG(".[23:16] <- 0x%02X\n", old_val);
592 case ATOM_SRC_BYTE24:
593 DEBUG(".[31:24] <- 0x%02X\n", old_val);
598 static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
600 uint8_t attr = U8((*ptr)++);
601 uint32_t dst, src, saved;
604 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
606 src = atom_get_src(ctx, attr, ptr);
609 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
612 static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
614 uint8_t attr = U8((*ptr)++);
615 uint32_t dst, src, saved;
618 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
620 src = atom_get_src(ctx, attr, ptr);
623 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
626 static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
628 printk("ATOM BIOS beeped!\n");
631 static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
633 int idx = U8((*ptr)++);
636 if (idx < ATOM_TABLE_NAMES_CNT)
637 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx]);
639 SDEBUG(" table: %d\n", idx);
640 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx))
641 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift, ctx->ps_size - ctx->ps_shift);
647 static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
649 uint8_t attr = U8((*ptr)++);
653 attr |= atom_def_dst[attr >> 3] << 6;
654 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
656 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
659 static void atom_op_compare(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);
667 ctx->ctx->cs_equal = (dst == src);
668 ctx->ctx->cs_above = (dst > src);
669 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",
670 ctx->ctx->cs_above ? "GT" : "LE");
673 static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
675 unsigned count = U8((*ptr)++);
676 SDEBUG(" count: %d\n", count);
677 if (arg == ATOM_UNIT_MICROSEC)
679 else if (!drm_can_sleep())
685 static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
687 uint8_t attr = U8((*ptr)++);
690 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
692 src = atom_get_src(ctx, attr, ptr);
694 ctx->ctx->divmul[0] = dst / src;
695 ctx->ctx->divmul[1] = dst % src;
697 ctx->ctx->divmul[0] = 0;
698 ctx->ctx->divmul[1] = 0;
702 static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
704 /* functionally, a nop */
707 static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
709 int execute = 0, target = U16(*ptr);
710 unsigned long cjiffies;
714 case ATOM_COND_ABOVE:
715 execute = ctx->ctx->cs_above;
717 case ATOM_COND_ABOVEOREQUAL:
718 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
720 case ATOM_COND_ALWAYS:
723 case ATOM_COND_BELOW:
724 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
726 case ATOM_COND_BELOWOREQUAL:
727 execute = !ctx->ctx->cs_above;
729 case ATOM_COND_EQUAL:
730 execute = ctx->ctx->cs_equal;
732 case ATOM_COND_NOTEQUAL:
733 execute = !ctx->ctx->cs_equal;
736 if (arg != ATOM_COND_ALWAYS)
737 SDEBUG(" taken: %s\n", str_yes_no(execute));
738 SDEBUG(" target: 0x%04X\n", target);
740 if (ctx->last_jump == (ctx->start + target)) {
742 if (time_after(cjiffies, ctx->last_jump_jiffies)) {
743 cjiffies -= ctx->last_jump_jiffies;
744 if ((jiffies_to_msecs(cjiffies) > 5000)) {
745 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
749 /* jiffies wrap around we will just wait a little longer */
750 ctx->last_jump_jiffies = jiffies;
753 ctx->last_jump = ctx->start + target;
754 ctx->last_jump_jiffies = jiffies;
756 *ptr = ctx->start + target;
760 static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
762 uint8_t attr = U8((*ptr)++);
763 uint32_t dst, mask, src, saved;
766 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
767 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
768 SDEBUG(" mask: 0x%08x", mask);
770 src = atom_get_src(ctx, attr, ptr);
774 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
777 static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
779 uint8_t attr = U8((*ptr)++);
782 if (((attr >> 3) & 7) != ATOM_SRC_DWORD)
783 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
785 atom_skip_dst(ctx, arg, attr, ptr);
789 src = atom_get_src(ctx, attr, ptr);
791 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
794 static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
796 uint8_t attr = U8((*ptr)++);
799 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
801 src = atom_get_src(ctx, attr, ptr);
802 ctx->ctx->divmul[0] = dst * src;
805 static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
810 static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
812 uint8_t attr = U8((*ptr)++);
813 uint32_t dst, src, saved;
816 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
818 src = atom_get_src(ctx, attr, ptr);
821 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
824 static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
826 uint8_t val = U8((*ptr)++);
827 SDEBUG("POST card output: 0x%02X\n", val);
830 static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
832 pr_info("unimplemented!\n");
835 static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
837 pr_info("unimplemented!\n");
840 static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
842 pr_info("unimplemented!\n");
845 static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
849 SDEBUG(" block: %d\n", idx);
851 ctx->ctx->data_block = 0;
853 ctx->ctx->data_block = ctx->start;
855 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx);
856 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block);
859 static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
861 uint8_t attr = U8((*ptr)++);
862 SDEBUG(" fb_base: ");
863 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
866 static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
872 if (port < ATOM_IO_NAMES_CNT)
873 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port]);
875 SDEBUG(" port: %d\n", port);
877 ctx->ctx->io_mode = ATOM_IO_MM;
879 ctx->ctx->io_mode = ATOM_IO_IIO | port;
883 ctx->ctx->io_mode = ATOM_IO_PCI;
886 case ATOM_PORT_SYSIO:
887 ctx->ctx->io_mode = ATOM_IO_SYSIO;
893 static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
895 ctx->ctx->reg_block = U16(*ptr);
897 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block);
900 static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
902 uint8_t attr = U8((*ptr)++), shift;
906 attr |= atom_def_dst[attr >> 3] << 6;
908 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
909 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
910 SDEBUG(" shift: %d\n", shift);
913 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
916 static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
918 uint8_t attr = U8((*ptr)++), shift;
922 attr |= atom_def_dst[attr >> 3] << 6;
924 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
925 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE0, ptr);
926 SDEBUG(" shift: %d\n", shift);
929 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
932 static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
934 uint8_t attr = U8((*ptr)++), shift;
937 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
939 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
940 /* op needs to full dst value */
942 shift = atom_get_src(ctx, attr, ptr);
943 SDEBUG(" shift: %d\n", shift);
945 dst &= atom_arg_mask[dst_align];
946 dst >>= atom_arg_shift[dst_align];
948 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
951 static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
953 uint8_t attr = U8((*ptr)++), shift;
956 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
958 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
959 /* op needs to full dst value */
961 shift = atom_get_src(ctx, attr, ptr);
962 SDEBUG(" shift: %d\n", shift);
964 dst &= atom_arg_mask[dst_align];
965 dst >>= atom_arg_shift[dst_align];
967 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
970 static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
972 uint8_t attr = U8((*ptr)++);
973 uint32_t dst, src, saved;
976 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
978 src = atom_get_src(ctx, attr, ptr);
981 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
984 static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
986 uint8_t attr = U8((*ptr)++);
987 uint32_t src, val, target;
989 src = atom_get_src(ctx, attr, ptr);
990 while (U16(*ptr) != ATOM_CASE_END)
991 if (U8(*ptr) == ATOM_CASE_MAGIC) {
995 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM,
999 SDEBUG(" target: %04X\n", target);
1000 *ptr = ctx->start + target;
1005 pr_info("Bad case\n");
1011 static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1013 uint8_t attr = U8((*ptr)++);
1016 dst = atom_get_dst(ctx, arg, attr, ptr, NULL, 1);
1018 src = atom_get_src(ctx, attr, ptr);
1019 ctx->ctx->cs_equal = ((dst & src) == 0);
1020 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE");
1023 static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1025 uint8_t attr = U8((*ptr)++);
1026 uint32_t dst, src, saved;
1029 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1031 src = atom_get_src(ctx, attr, ptr);
1034 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1037 static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1039 pr_info("unimplemented!\n");
1043 void (*func) (atom_exec_context *, int *, int);
1045 } opcode_table[ATOM_OP_CNT] = {
1048 atom_op_move, ATOM_ARG_REG}, {
1049 atom_op_move, ATOM_ARG_PS}, {
1050 atom_op_move, ATOM_ARG_WS}, {
1051 atom_op_move, ATOM_ARG_FB}, {
1052 atom_op_move, ATOM_ARG_PLL}, {
1053 atom_op_move, ATOM_ARG_MC}, {
1054 atom_op_and, ATOM_ARG_REG}, {
1055 atom_op_and, ATOM_ARG_PS}, {
1056 atom_op_and, ATOM_ARG_WS}, {
1057 atom_op_and, ATOM_ARG_FB}, {
1058 atom_op_and, ATOM_ARG_PLL}, {
1059 atom_op_and, ATOM_ARG_MC}, {
1060 atom_op_or, ATOM_ARG_REG}, {
1061 atom_op_or, ATOM_ARG_PS}, {
1062 atom_op_or, ATOM_ARG_WS}, {
1063 atom_op_or, ATOM_ARG_FB}, {
1064 atom_op_or, ATOM_ARG_PLL}, {
1065 atom_op_or, ATOM_ARG_MC}, {
1066 atom_op_shift_left, ATOM_ARG_REG}, {
1067 atom_op_shift_left, ATOM_ARG_PS}, {
1068 atom_op_shift_left, ATOM_ARG_WS}, {
1069 atom_op_shift_left, ATOM_ARG_FB}, {
1070 atom_op_shift_left, ATOM_ARG_PLL}, {
1071 atom_op_shift_left, ATOM_ARG_MC}, {
1072 atom_op_shift_right, ATOM_ARG_REG}, {
1073 atom_op_shift_right, ATOM_ARG_PS}, {
1074 atom_op_shift_right, ATOM_ARG_WS}, {
1075 atom_op_shift_right, ATOM_ARG_FB}, {
1076 atom_op_shift_right, ATOM_ARG_PLL}, {
1077 atom_op_shift_right, ATOM_ARG_MC}, {
1078 atom_op_mul, ATOM_ARG_REG}, {
1079 atom_op_mul, ATOM_ARG_PS}, {
1080 atom_op_mul, ATOM_ARG_WS}, {
1081 atom_op_mul, ATOM_ARG_FB}, {
1082 atom_op_mul, ATOM_ARG_PLL}, {
1083 atom_op_mul, ATOM_ARG_MC}, {
1084 atom_op_div, ATOM_ARG_REG}, {
1085 atom_op_div, ATOM_ARG_PS}, {
1086 atom_op_div, ATOM_ARG_WS}, {
1087 atom_op_div, ATOM_ARG_FB}, {
1088 atom_op_div, ATOM_ARG_PLL}, {
1089 atom_op_div, ATOM_ARG_MC}, {
1090 atom_op_add, ATOM_ARG_REG}, {
1091 atom_op_add, ATOM_ARG_PS}, {
1092 atom_op_add, ATOM_ARG_WS}, {
1093 atom_op_add, ATOM_ARG_FB}, {
1094 atom_op_add, ATOM_ARG_PLL}, {
1095 atom_op_add, ATOM_ARG_MC}, {
1096 atom_op_sub, ATOM_ARG_REG}, {
1097 atom_op_sub, ATOM_ARG_PS}, {
1098 atom_op_sub, ATOM_ARG_WS}, {
1099 atom_op_sub, ATOM_ARG_FB}, {
1100 atom_op_sub, ATOM_ARG_PLL}, {
1101 atom_op_sub, ATOM_ARG_MC}, {
1102 atom_op_setport, ATOM_PORT_ATI}, {
1103 atom_op_setport, ATOM_PORT_PCI}, {
1104 atom_op_setport, ATOM_PORT_SYSIO}, {
1105 atom_op_setregblock, 0}, {
1106 atom_op_setfbbase, 0}, {
1107 atom_op_compare, ATOM_ARG_REG}, {
1108 atom_op_compare, ATOM_ARG_PS}, {
1109 atom_op_compare, ATOM_ARG_WS}, {
1110 atom_op_compare, ATOM_ARG_FB}, {
1111 atom_op_compare, ATOM_ARG_PLL}, {
1112 atom_op_compare, ATOM_ARG_MC}, {
1113 atom_op_switch, 0}, {
1114 atom_op_jump, ATOM_COND_ALWAYS}, {
1115 atom_op_jump, ATOM_COND_EQUAL}, {
1116 atom_op_jump, ATOM_COND_BELOW}, {
1117 atom_op_jump, ATOM_COND_ABOVE}, {
1118 atom_op_jump, ATOM_COND_BELOWOREQUAL}, {
1119 atom_op_jump, ATOM_COND_ABOVEOREQUAL}, {
1120 atom_op_jump, ATOM_COND_NOTEQUAL}, {
1121 atom_op_test, ATOM_ARG_REG}, {
1122 atom_op_test, ATOM_ARG_PS}, {
1123 atom_op_test, ATOM_ARG_WS}, {
1124 atom_op_test, ATOM_ARG_FB}, {
1125 atom_op_test, ATOM_ARG_PLL}, {
1126 atom_op_test, ATOM_ARG_MC}, {
1127 atom_op_delay, ATOM_UNIT_MILLISEC}, {
1128 atom_op_delay, ATOM_UNIT_MICROSEC}, {
1129 atom_op_calltable, 0}, {
1130 atom_op_repeat, 0}, {
1131 atom_op_clear, ATOM_ARG_REG}, {
1132 atom_op_clear, ATOM_ARG_PS}, {
1133 atom_op_clear, ATOM_ARG_WS}, {
1134 atom_op_clear, ATOM_ARG_FB}, {
1135 atom_op_clear, ATOM_ARG_PLL}, {
1136 atom_op_clear, ATOM_ARG_MC}, {
1139 atom_op_mask, ATOM_ARG_REG}, {
1140 atom_op_mask, ATOM_ARG_PS}, {
1141 atom_op_mask, ATOM_ARG_WS}, {
1142 atom_op_mask, ATOM_ARG_FB}, {
1143 atom_op_mask, ATOM_ARG_PLL}, {
1144 atom_op_mask, ATOM_ARG_MC}, {
1145 atom_op_postcard, 0}, {
1147 atom_op_savereg, 0}, {
1148 atom_op_restorereg, 0}, {
1149 atom_op_setdatablock, 0}, {
1150 atom_op_xor, ATOM_ARG_REG}, {
1151 atom_op_xor, ATOM_ARG_PS}, {
1152 atom_op_xor, ATOM_ARG_WS}, {
1153 atom_op_xor, ATOM_ARG_FB}, {
1154 atom_op_xor, ATOM_ARG_PLL}, {
1155 atom_op_xor, ATOM_ARG_MC}, {
1156 atom_op_shl, ATOM_ARG_REG}, {
1157 atom_op_shl, ATOM_ARG_PS}, {
1158 atom_op_shl, ATOM_ARG_WS}, {
1159 atom_op_shl, ATOM_ARG_FB}, {
1160 atom_op_shl, ATOM_ARG_PLL}, {
1161 atom_op_shl, ATOM_ARG_MC}, {
1162 atom_op_shr, ATOM_ARG_REG}, {
1163 atom_op_shr, ATOM_ARG_PS}, {
1164 atom_op_shr, ATOM_ARG_WS}, {
1165 atom_op_shr, ATOM_ARG_FB}, {
1166 atom_op_shr, ATOM_ARG_PLL}, {
1167 atom_op_shr, ATOM_ARG_MC}, {
1168 atom_op_debug, 0},};
1170 static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1172 int base = CU16(ctx->cmd_table + 4 + 2 * index);
1173 int len, ws, ps, ptr;
1175 atom_exec_context ectx;
1181 len = CU16(base + ATOM_CT_SIZE_PTR);
1182 ws = CU8(base + ATOM_CT_WS_PTR);
1183 ps = CU8(base + ATOM_CT_PS_PTR) & ATOM_CT_PS_MASK;
1184 ptr = base + ATOM_CT_CODE_PTR;
1186 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps);
1189 ectx.ps_shift = ps / 4;
1192 ectx.ps_size = params_size;
1196 ectx.ws = kcalloc(4, ws, GFP_KERNEL);
1206 if (op < ATOM_OP_NAMES_CNT)
1207 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1);
1209 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1);
1211 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1212 base, len, ws, ps, ptr - 1);
1217 if (op < ATOM_OP_CNT && op > 0)
1218 opcode_table[op].func(&ectx, &ptr,
1219 opcode_table[op].arg);
1223 if (op == ATOM_OP_EOT)
1234 int atom_execute_table_scratch_unlocked(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1238 mutex_lock(&ctx->mutex);
1239 /* reset data block */
1240 ctx->data_block = 0;
1241 /* reset reg block */
1243 /* reset fb window */
1246 ctx->io_mode = ATOM_IO_MM;
1250 r = atom_execute_table_locked(ctx, index, params, params_size);
1251 mutex_unlock(&ctx->mutex);
1255 int atom_execute_table(struct atom_context *ctx, int index, uint32_t *params, int params_size)
1258 mutex_lock(&ctx->scratch_mutex);
1259 r = atom_execute_table_scratch_unlocked(ctx, index, params, params_size);
1260 mutex_unlock(&ctx->scratch_mutex);
1264 static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1266 static void atom_index_iio(struct atom_context *ctx, int base)
1268 ctx->iio = kzalloc(2 * 256, GFP_KERNEL);
1271 while (CU8(base) == ATOM_IIO_START) {
1272 ctx->iio[CU8(base + 1)] = base + 2;
1274 while (CU8(base) != ATOM_IIO_END)
1275 base += atom_iio_len[CU8(base)];
1280 struct atom_context *atom_parse(struct card_info *card, void *bios)
1283 struct atom_context *ctx =
1284 kzalloc(sizeof(struct atom_context), GFP_KERNEL);
1295 if (CU16(0) != ATOM_BIOS_MAGIC) {
1296 pr_info("Invalid BIOS magic\n");
1301 (CSTR(ATOM_ATI_MAGIC_PTR), ATOM_ATI_MAGIC,
1302 strlen(ATOM_ATI_MAGIC))) {
1303 pr_info("Invalid ATI magic\n");
1308 base = CU16(ATOM_ROM_TABLE_PTR);
1310 (CSTR(base + ATOM_ROM_MAGIC_PTR), ATOM_ROM_MAGIC,
1311 strlen(ATOM_ROM_MAGIC))) {
1312 pr_info("Invalid ATOM magic\n");
1317 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR);
1318 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR);
1319 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR) + 4);
1325 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR));
1326 while (*str && ((*str == '\n') || (*str == '\r')))
1328 /* name string isn't always 0 terminated */
1329 for (i = 0; i < 511; i++) {
1331 if (name[i] < '.' || name[i] > 'z') {
1336 pr_info("ATOM BIOS: %s\n", name);
1341 int atom_asic_init(struct atom_context *ctx)
1343 struct radeon_device *rdev = ctx->card->dev->dev_private;
1344 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR);
1350 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR));
1351 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR));
1352 if (!ps[0] || !ps[1])
1355 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT))
1357 ret = atom_execute_table(ctx, ATOM_CMD_INIT, ps, 16);
1363 if (rdev->family < CHIP_R600) {
1364 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL))
1365 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL, ps, 16);
1370 void atom_destroy(struct atom_context *ctx)
1376 bool atom_parse_data_header(struct atom_context *ctx, int index,
1377 uint16_t *size, uint8_t *frev, uint8_t *crev,
1378 uint16_t *data_start)
1380 int offset = index * 2 + 4;
1381 int idx = CU16(ctx->data_table + offset);
1382 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1390 *frev = CU8(idx + 2);
1392 *crev = CU8(idx + 3);
1397 bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t *frev,
1400 int offset = index * 2 + 4;
1401 int idx = CU16(ctx->cmd_table + offset);
1402 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1408 *frev = CU8(idx + 2);
1410 *crev = CU8(idx + 3);
1414 int atom_allocate_fb_scratch(struct atom_context *ctx)
1416 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware);
1417 uint16_t data_offset;
1418 int usage_bytes = 0;
1419 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1421 if (atom_parse_data_header(ctx, index, NULL, NULL, NULL, &data_offset)) {
1422 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1424 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1425 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),
1426 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb));
1428 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb) * 1024;
1430 ctx->scratch_size_bytes = 0;
1431 if (usage_bytes == 0)
1432 usage_bytes = 20 * 1024;
1433 /* allocate some scratch memory */
1434 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL);
1437 ctx->scratch_size_bytes = usage_bytes;