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 <asm/unaligned.h>
32 #include "atom-names.h"
33 #include "atom-bits.h"
35 #define ATOM_COND_ABOVE 0
36 #define ATOM_COND_ABOVEOREQUAL 1
37 #define ATOM_COND_ALWAYS 2
38 #define ATOM_COND_BELOW 3
39 #define ATOM_COND_BELOWOREQUAL 4
40 #define ATOM_COND_EQUAL 5
41 #define ATOM_COND_NOTEQUAL 6
43 #define ATOM_PORT_ATI 0
44 #define ATOM_PORT_PCI 1
45 #define ATOM_PORT_SYSIO 2
47 #define ATOM_UNIT_MICROSEC 0
48 #define ATOM_UNIT_MILLISEC 1
54 struct atom_context
*ctx
;
62 static void atom_execute_table_locked(struct atom_context
*ctx
, int index
, uint32_t * params
);
63 void atom_execute_table(struct atom_context
*ctx
, int index
, uint32_t * params
);
65 static uint32_t atom_arg_mask
[8] =
66 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
68 static int atom_arg_shift
[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
70 static int atom_dst_to_src
[8][4] = {
71 /* translate destination alignment field to the source alignment encoding */
81 static int atom_def_dst
[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
83 static int debug_depth
= 0;
85 static void debug_print_spaces(int n
)
91 #define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
92 #define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
94 #define DEBUG(...) do { } while (0)
95 #define SDEBUG(...) do { } while (0)
98 static uint32_t atom_iio_execute(struct atom_context
*ctx
, int base
,
99 uint32_t index
, uint32_t data
)
101 uint32_t temp
= 0xCDCDCDCD;
108 temp
= ctx
->card
->reg_read(ctx
->card
, CU16(base
+ 1));
112 (void)ctx
->card
->reg_read(ctx
->card
, CU16(base
+ 1));
113 ctx
->card
->reg_write(ctx
->card
, CU16(base
+ 1), temp
);
118 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
124 (0xFFFFFFFF >> (32 - CU8(base
+ 1))) << CU8(base
+
128 case ATOM_IIO_MOVE_INDEX
:
130 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
133 ((index
>> CU8(base
+ 2)) &
134 (0xFFFFFFFF >> (32 - CU8(base
+ 1)))) << CU8(base
+
138 case ATOM_IIO_MOVE_DATA
:
140 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
143 ((data
>> CU8(base
+ 2)) &
144 (0xFFFFFFFF >> (32 - CU8(base
+ 1)))) << CU8(base
+
148 case ATOM_IIO_MOVE_ATTR
:
150 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
154 io_attr
>> CU8(base
+ 2)) & (0xFFFFFFFF >> (32 -
165 printk(KERN_INFO
"Unknown IIO opcode.\n");
170 static uint32_t atom_get_src_int(atom_exec_context
*ctx
, uint8_t attr
,
171 int *ptr
, uint32_t *saved
, int print
)
173 uint32_t idx
, val
= 0xCDCDCDCD, align
, arg
;
174 struct atom_context
*gctx
= ctx
->ctx
;
176 align
= (attr
>> 3) & 7;
182 DEBUG("REG[0x%04X]", idx
);
183 idx
+= gctx
->reg_block
;
184 switch (gctx
->io_mode
) {
186 val
= gctx
->card
->reg_read(gctx
->card
, idx
);
190 "PCI registers are not implemented.\n");
194 "SYSIO registers are not implemented.\n");
197 if (!(gctx
->io_mode
& 0x80)) {
198 printk(KERN_INFO
"Bad IO mode.\n");
201 if (!gctx
->iio
[gctx
->io_mode
& 0x7F]) {
203 "Undefined indirect IO read method %d.\n",
204 gctx
->io_mode
& 0x7F);
208 atom_iio_execute(gctx
,
209 gctx
->iio
[gctx
->io_mode
& 0x7F],
216 /* get_unaligned_le32 avoids unaligned accesses from atombios
217 * tables, noticed on a DEC Alpha. */
218 val
= get_unaligned_le32((u32
*)&ctx
->ps
[idx
]);
220 DEBUG("PS[0x%02X,0x%04X]", idx
, val
);
226 DEBUG("WS[0x%02X]", idx
);
228 case ATOM_WS_QUOTIENT
:
229 val
= gctx
->divmul
[0];
231 case ATOM_WS_REMAINDER
:
232 val
= gctx
->divmul
[1];
234 case ATOM_WS_DATAPTR
:
235 val
= gctx
->data_block
;
240 case ATOM_WS_OR_MASK
:
241 val
= 1 << gctx
->shift
;
243 case ATOM_WS_AND_MASK
:
244 val
= ~(1 << gctx
->shift
);
246 case ATOM_WS_FB_WINDOW
:
249 case ATOM_WS_ATTRIBUTES
:
253 val
= gctx
->reg_block
;
263 if (gctx
->data_block
)
264 DEBUG("ID[0x%04X+%04X]", idx
, gctx
->data_block
);
266 DEBUG("ID[0x%04X]", idx
);
268 val
= U32(idx
+ gctx
->data_block
);
273 val
= gctx
->scratch
[((gctx
->fb_base
+ idx
) / 4)];
275 DEBUG("FB[0x%02X]", idx
);
283 DEBUG("IMM 0x%08X\n", val
);
287 case ATOM_SRC_WORD16
:
291 DEBUG("IMM 0x%04X\n", val
);
295 case ATOM_SRC_BYTE16
:
296 case ATOM_SRC_BYTE24
:
300 DEBUG("IMM 0x%02X\n", val
);
308 DEBUG("PLL[0x%02X]", idx
);
309 val
= gctx
->card
->pll_read(gctx
->card
, idx
);
315 DEBUG("MC[0x%02X]", idx
);
316 val
= gctx
->card
->mc_read(gctx
->card
, idx
);
321 val
&= atom_arg_mask
[align
];
322 val
>>= atom_arg_shift
[align
];
326 DEBUG(".[31:0] -> 0x%08X\n", val
);
329 DEBUG(".[15:0] -> 0x%04X\n", val
);
332 DEBUG(".[23:8] -> 0x%04X\n", val
);
334 case ATOM_SRC_WORD16
:
335 DEBUG(".[31:16] -> 0x%04X\n", val
);
338 DEBUG(".[7:0] -> 0x%02X\n", val
);
341 DEBUG(".[15:8] -> 0x%02X\n", val
);
343 case ATOM_SRC_BYTE16
:
344 DEBUG(".[23:16] -> 0x%02X\n", val
);
346 case ATOM_SRC_BYTE24
:
347 DEBUG(".[31:24] -> 0x%02X\n", val
);
353 static void atom_skip_src_int(atom_exec_context
*ctx
, uint8_t attr
, int *ptr
)
355 uint32_t align
= (attr
>> 3) & 7, arg
= attr
& 7;
375 case ATOM_SRC_WORD16
:
380 case ATOM_SRC_BYTE16
:
381 case ATOM_SRC_BYTE24
:
389 static uint32_t atom_get_src(atom_exec_context
*ctx
, uint8_t attr
, int *ptr
)
391 return atom_get_src_int(ctx
, attr
, ptr
, NULL
, 1);
394 static uint32_t atom_get_src_direct(atom_exec_context
*ctx
, uint8_t align
, int *ptr
)
396 uint32_t val
= 0xCDCDCDCD;
405 case ATOM_SRC_WORD16
:
411 case ATOM_SRC_BYTE16
:
412 case ATOM_SRC_BYTE24
:
420 static uint32_t atom_get_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
,
421 int *ptr
, uint32_t *saved
, int print
)
423 return atom_get_src_int(ctx
,
424 arg
| atom_dst_to_src
[(attr
>> 3) &
425 7][(attr
>> 6) & 3] << 3,
429 static void atom_skip_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
, int *ptr
)
431 atom_skip_src_int(ctx
,
432 arg
| atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) &
436 static void atom_put_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
,
437 int *ptr
, uint32_t val
, uint32_t saved
)
440 atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) & 3], old_val
=
442 struct atom_context
*gctx
= ctx
->ctx
;
443 old_val
&= atom_arg_mask
[align
] >> atom_arg_shift
[align
];
444 val
<<= atom_arg_shift
[align
];
445 val
&= atom_arg_mask
[align
];
446 saved
&= ~atom_arg_mask
[align
];
452 DEBUG("REG[0x%04X]", idx
);
453 idx
+= gctx
->reg_block
;
454 switch (gctx
->io_mode
) {
457 gctx
->card
->reg_write(gctx
->card
, idx
,
460 gctx
->card
->reg_write(gctx
->card
, idx
, val
);
464 "PCI registers are not implemented.\n");
468 "SYSIO registers are not implemented.\n");
471 if (!(gctx
->io_mode
& 0x80)) {
472 printk(KERN_INFO
"Bad IO mode.\n");
475 if (!gctx
->iio
[gctx
->io_mode
& 0xFF]) {
477 "Undefined indirect IO write method %d.\n",
478 gctx
->io_mode
& 0x7F);
481 atom_iio_execute(gctx
, gctx
->iio
[gctx
->io_mode
& 0xFF],
488 DEBUG("PS[0x%02X]", idx
);
489 ctx
->ps
[idx
] = cpu_to_le32(val
);
494 DEBUG("WS[0x%02X]", idx
);
496 case ATOM_WS_QUOTIENT
:
497 gctx
->divmul
[0] = val
;
499 case ATOM_WS_REMAINDER
:
500 gctx
->divmul
[1] = val
;
502 case ATOM_WS_DATAPTR
:
503 gctx
->data_block
= val
;
508 case ATOM_WS_OR_MASK
:
509 case ATOM_WS_AND_MASK
:
511 case ATOM_WS_FB_WINDOW
:
514 case ATOM_WS_ATTRIBUTES
:
518 gctx
->reg_block
= val
;
527 gctx
->scratch
[((gctx
->fb_base
+ idx
) / 4)] = val
;
528 DEBUG("FB[0x%02X]", idx
);
533 DEBUG("PLL[0x%02X]", idx
);
534 gctx
->card
->pll_write(gctx
->card
, idx
, val
);
539 DEBUG("MC[0x%02X]", idx
);
540 gctx
->card
->mc_write(gctx
->card
, idx
, val
);
545 DEBUG(".[31:0] <- 0x%08X\n", old_val
);
548 DEBUG(".[15:0] <- 0x%04X\n", old_val
);
551 DEBUG(".[23:8] <- 0x%04X\n", old_val
);
553 case ATOM_SRC_WORD16
:
554 DEBUG(".[31:16] <- 0x%04X\n", old_val
);
557 DEBUG(".[7:0] <- 0x%02X\n", old_val
);
560 DEBUG(".[15:8] <- 0x%02X\n", old_val
);
562 case ATOM_SRC_BYTE16
:
563 DEBUG(".[23:16] <- 0x%02X\n", old_val
);
565 case ATOM_SRC_BYTE24
:
566 DEBUG(".[31:24] <- 0x%02X\n", old_val
);
571 static void atom_op_add(atom_exec_context
*ctx
, int *ptr
, int arg
)
573 uint8_t attr
= U8((*ptr
)++);
574 uint32_t dst
, src
, saved
;
577 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
579 src
= atom_get_src(ctx
, attr
, ptr
);
582 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
585 static void atom_op_and(atom_exec_context
*ctx
, int *ptr
, int arg
)
587 uint8_t attr
= U8((*ptr
)++);
588 uint32_t dst
, src
, saved
;
591 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
593 src
= atom_get_src(ctx
, attr
, ptr
);
596 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
599 static void atom_op_beep(atom_exec_context
*ctx
, int *ptr
, int arg
)
601 printk("ATOM BIOS beeped!\n");
604 static void atom_op_calltable(atom_exec_context
*ctx
, int *ptr
, int arg
)
606 int idx
= U8((*ptr
)++);
607 if (idx
< ATOM_TABLE_NAMES_CNT
)
608 SDEBUG(" table: %d (%s)\n", idx
, atom_table_names
[idx
]);
610 SDEBUG(" table: %d\n", idx
);
611 if (U16(ctx
->ctx
->cmd_table
+ 4 + 2 * idx
))
612 atom_execute_table_locked(ctx
->ctx
, idx
, ctx
->ps
+ ctx
->ps_shift
);
615 static void atom_op_clear(atom_exec_context
*ctx
, int *ptr
, int arg
)
617 uint8_t attr
= U8((*ptr
)++);
621 attr
|= atom_def_dst
[attr
>> 3] << 6;
622 atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 0);
624 atom_put_dst(ctx
, arg
, attr
, &dptr
, 0, saved
);
627 static void atom_op_compare(atom_exec_context
*ctx
, int *ptr
, int arg
)
629 uint8_t attr
= U8((*ptr
)++);
632 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
634 src
= atom_get_src(ctx
, attr
, ptr
);
635 ctx
->ctx
->cs_equal
= (dst
== src
);
636 ctx
->ctx
->cs_above
= (dst
> src
);
637 SDEBUG(" result: %s %s\n", ctx
->ctx
->cs_equal
? "EQ" : "NE",
638 ctx
->ctx
->cs_above
? "GT" : "LE");
641 static void atom_op_delay(atom_exec_context
*ctx
, int *ptr
, int arg
)
643 uint8_t count
= U8((*ptr
)++);
644 SDEBUG(" count: %d\n", count
);
645 if (arg
== ATOM_UNIT_MICROSEC
)
648 schedule_timeout_uninterruptible(msecs_to_jiffies(count
));
651 static void atom_op_div(atom_exec_context
*ctx
, int *ptr
, int arg
)
653 uint8_t attr
= U8((*ptr
)++);
656 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
658 src
= atom_get_src(ctx
, attr
, ptr
);
660 ctx
->ctx
->divmul
[0] = dst
/ src
;
661 ctx
->ctx
->divmul
[1] = dst
% src
;
663 ctx
->ctx
->divmul
[0] = 0;
664 ctx
->ctx
->divmul
[1] = 0;
668 static void atom_op_eot(atom_exec_context
*ctx
, int *ptr
, int arg
)
670 /* functionally, a nop */
673 static void atom_op_jump(atom_exec_context
*ctx
, int *ptr
, int arg
)
675 int execute
= 0, target
= U16(*ptr
);
678 case ATOM_COND_ABOVE
:
679 execute
= ctx
->ctx
->cs_above
;
681 case ATOM_COND_ABOVEOREQUAL
:
682 execute
= ctx
->ctx
->cs_above
|| ctx
->ctx
->cs_equal
;
684 case ATOM_COND_ALWAYS
:
687 case ATOM_COND_BELOW
:
688 execute
= !(ctx
->ctx
->cs_above
|| ctx
->ctx
->cs_equal
);
690 case ATOM_COND_BELOWOREQUAL
:
691 execute
= !ctx
->ctx
->cs_above
;
693 case ATOM_COND_EQUAL
:
694 execute
= ctx
->ctx
->cs_equal
;
696 case ATOM_COND_NOTEQUAL
:
697 execute
= !ctx
->ctx
->cs_equal
;
700 if (arg
!= ATOM_COND_ALWAYS
)
701 SDEBUG(" taken: %s\n", execute
? "yes" : "no");
702 SDEBUG(" target: 0x%04X\n", target
);
704 *ptr
= ctx
->start
+ target
;
707 static void atom_op_mask(atom_exec_context
*ctx
, int *ptr
, int arg
)
709 uint8_t attr
= U8((*ptr
)++);
710 uint32_t dst
, src1
, src2
, saved
;
713 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
715 src1
= atom_get_src_direct(ctx
, ((attr
>> 3) & 7), ptr
);
717 src2
= atom_get_src(ctx
, attr
, ptr
);
721 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
724 static void atom_op_move(atom_exec_context
*ctx
, int *ptr
, int arg
)
726 uint8_t attr
= U8((*ptr
)++);
729 if (((attr
>> 3) & 7) != ATOM_SRC_DWORD
)
730 atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 0);
732 atom_skip_dst(ctx
, arg
, attr
, ptr
);
736 src
= atom_get_src(ctx
, attr
, ptr
);
738 atom_put_dst(ctx
, arg
, attr
, &dptr
, src
, saved
);
741 static void atom_op_mul(atom_exec_context
*ctx
, int *ptr
, int arg
)
743 uint8_t attr
= U8((*ptr
)++);
746 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
748 src
= atom_get_src(ctx
, attr
, ptr
);
749 ctx
->ctx
->divmul
[0] = dst
* src
;
752 static void atom_op_nop(atom_exec_context
*ctx
, int *ptr
, int arg
)
757 static void atom_op_or(atom_exec_context
*ctx
, int *ptr
, int arg
)
759 uint8_t attr
= U8((*ptr
)++);
760 uint32_t dst
, src
, saved
;
763 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
765 src
= atom_get_src(ctx
, attr
, ptr
);
768 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
771 static void atom_op_postcard(atom_exec_context
*ctx
, int *ptr
, int arg
)
773 uint8_t val
= U8((*ptr
)++);
774 SDEBUG("POST card output: 0x%02X\n", val
);
777 static void atom_op_repeat(atom_exec_context
*ctx
, int *ptr
, int arg
)
779 printk(KERN_INFO
"unimplemented!\n");
782 static void atom_op_restorereg(atom_exec_context
*ctx
, int *ptr
, int arg
)
784 printk(KERN_INFO
"unimplemented!\n");
787 static void atom_op_savereg(atom_exec_context
*ctx
, int *ptr
, int arg
)
789 printk(KERN_INFO
"unimplemented!\n");
792 static void atom_op_setdatablock(atom_exec_context
*ctx
, int *ptr
, int arg
)
796 SDEBUG(" block: %d\n", idx
);
798 ctx
->ctx
->data_block
= 0;
800 ctx
->ctx
->data_block
= ctx
->start
;
802 ctx
->ctx
->data_block
= U16(ctx
->ctx
->data_table
+ 4 + 2 * idx
);
803 SDEBUG(" base: 0x%04X\n", ctx
->ctx
->data_block
);
806 static void atom_op_setfbbase(atom_exec_context
*ctx
, int *ptr
, int arg
)
808 uint8_t attr
= U8((*ptr
)++);
809 SDEBUG(" fb_base: ");
810 ctx
->ctx
->fb_base
= atom_get_src(ctx
, attr
, ptr
);
813 static void atom_op_setport(atom_exec_context
*ctx
, int *ptr
, int arg
)
819 if (port
< ATOM_IO_NAMES_CNT
)
820 SDEBUG(" port: %d (%s)\n", port
, atom_io_names
[port
]);
822 SDEBUG(" port: %d\n", port
);
824 ctx
->ctx
->io_mode
= ATOM_IO_MM
;
826 ctx
->ctx
->io_mode
= ATOM_IO_IIO
| port
;
830 ctx
->ctx
->io_mode
= ATOM_IO_PCI
;
833 case ATOM_PORT_SYSIO
:
834 ctx
->ctx
->io_mode
= ATOM_IO_SYSIO
;
840 static void atom_op_setregblock(atom_exec_context
*ctx
, int *ptr
, int arg
)
842 ctx
->ctx
->reg_block
= U16(*ptr
);
844 SDEBUG(" base: 0x%04X\n", ctx
->ctx
->reg_block
);
847 static void atom_op_shift_left(atom_exec_context
*ctx
, int *ptr
, int arg
)
849 uint8_t attr
= U8((*ptr
)++), shift
;
853 attr
|= atom_def_dst
[attr
>> 3] << 6;
855 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
856 shift
= atom_get_src_direct(ctx
, ATOM_SRC_BYTE0
, ptr
);
857 SDEBUG(" shift: %d\n", shift
);
860 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
863 static void atom_op_shift_right(atom_exec_context
*ctx
, int *ptr
, int arg
)
865 uint8_t attr
= U8((*ptr
)++), shift
;
869 attr
|= atom_def_dst
[attr
>> 3] << 6;
871 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
872 shift
= atom_get_src_direct(ctx
, ATOM_SRC_BYTE0
, ptr
);
873 SDEBUG(" shift: %d\n", shift
);
876 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
879 static void atom_op_shl(atom_exec_context
*ctx
, int *ptr
, int arg
)
881 uint8_t attr
= U8((*ptr
)++), shift
;
885 attr
|= atom_def_dst
[attr
>> 3] << 6;
887 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
888 shift
= atom_get_src(ctx
, attr
, ptr
);
889 SDEBUG(" shift: %d\n", shift
);
892 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
895 static void atom_op_shr(atom_exec_context
*ctx
, int *ptr
, int arg
)
897 uint8_t attr
= U8((*ptr
)++), shift
;
901 attr
|= atom_def_dst
[attr
>> 3] << 6;
903 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
904 shift
= atom_get_src(ctx
, attr
, ptr
);
905 SDEBUG(" shift: %d\n", shift
);
908 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
911 static void atom_op_sub(atom_exec_context
*ctx
, int *ptr
, int arg
)
913 uint8_t attr
= U8((*ptr
)++);
914 uint32_t dst
, src
, saved
;
917 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
919 src
= atom_get_src(ctx
, attr
, ptr
);
922 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
925 static void atom_op_switch(atom_exec_context
*ctx
, int *ptr
, int arg
)
927 uint8_t attr
= U8((*ptr
)++);
928 uint32_t src
, val
, target
;
930 src
= atom_get_src(ctx
, attr
, ptr
);
931 while (U16(*ptr
) != ATOM_CASE_END
)
932 if (U8(*ptr
) == ATOM_CASE_MAGIC
) {
936 atom_get_src(ctx
, (attr
& 0x38) | ATOM_ARG_IMM
,
940 SDEBUG(" target: %04X\n", target
);
941 *ptr
= ctx
->start
+ target
;
946 printk(KERN_INFO
"Bad case.\n");
952 static void atom_op_test(atom_exec_context
*ctx
, int *ptr
, int arg
)
954 uint8_t attr
= U8((*ptr
)++);
957 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
959 src
= atom_get_src(ctx
, attr
, ptr
);
960 ctx
->ctx
->cs_equal
= ((dst
& src
) == 0);
961 SDEBUG(" result: %s\n", ctx
->ctx
->cs_equal
? "EQ" : "NE");
964 static void atom_op_xor(atom_exec_context
*ctx
, int *ptr
, int arg
)
966 uint8_t attr
= U8((*ptr
)++);
967 uint32_t dst
, src
, saved
;
970 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
972 src
= atom_get_src(ctx
, attr
, ptr
);
975 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
978 static void atom_op_debug(atom_exec_context
*ctx
, int *ptr
, int arg
)
980 printk(KERN_INFO
"unimplemented!\n");
984 void (*func
) (atom_exec_context
*, int *, int);
986 } opcode_table
[ATOM_OP_CNT
] = {
989 atom_op_move
, ATOM_ARG_REG
}, {
990 atom_op_move
, ATOM_ARG_PS
}, {
991 atom_op_move
, ATOM_ARG_WS
}, {
992 atom_op_move
, ATOM_ARG_FB
}, {
993 atom_op_move
, ATOM_ARG_PLL
}, {
994 atom_op_move
, ATOM_ARG_MC
}, {
995 atom_op_and
, ATOM_ARG_REG
}, {
996 atom_op_and
, ATOM_ARG_PS
}, {
997 atom_op_and
, ATOM_ARG_WS
}, {
998 atom_op_and
, ATOM_ARG_FB
}, {
999 atom_op_and
, ATOM_ARG_PLL
}, {
1000 atom_op_and
, ATOM_ARG_MC
}, {
1001 atom_op_or
, ATOM_ARG_REG
}, {
1002 atom_op_or
, ATOM_ARG_PS
}, {
1003 atom_op_or
, ATOM_ARG_WS
}, {
1004 atom_op_or
, ATOM_ARG_FB
}, {
1005 atom_op_or
, ATOM_ARG_PLL
}, {
1006 atom_op_or
, ATOM_ARG_MC
}, {
1007 atom_op_shift_left
, ATOM_ARG_REG
}, {
1008 atom_op_shift_left
, ATOM_ARG_PS
}, {
1009 atom_op_shift_left
, ATOM_ARG_WS
}, {
1010 atom_op_shift_left
, ATOM_ARG_FB
}, {
1011 atom_op_shift_left
, ATOM_ARG_PLL
}, {
1012 atom_op_shift_left
, ATOM_ARG_MC
}, {
1013 atom_op_shift_right
, ATOM_ARG_REG
}, {
1014 atom_op_shift_right
, ATOM_ARG_PS
}, {
1015 atom_op_shift_right
, ATOM_ARG_WS
}, {
1016 atom_op_shift_right
, ATOM_ARG_FB
}, {
1017 atom_op_shift_right
, ATOM_ARG_PLL
}, {
1018 atom_op_shift_right
, ATOM_ARG_MC
}, {
1019 atom_op_mul
, ATOM_ARG_REG
}, {
1020 atom_op_mul
, ATOM_ARG_PS
}, {
1021 atom_op_mul
, ATOM_ARG_WS
}, {
1022 atom_op_mul
, ATOM_ARG_FB
}, {
1023 atom_op_mul
, ATOM_ARG_PLL
}, {
1024 atom_op_mul
, ATOM_ARG_MC
}, {
1025 atom_op_div
, ATOM_ARG_REG
}, {
1026 atom_op_div
, ATOM_ARG_PS
}, {
1027 atom_op_div
, ATOM_ARG_WS
}, {
1028 atom_op_div
, ATOM_ARG_FB
}, {
1029 atom_op_div
, ATOM_ARG_PLL
}, {
1030 atom_op_div
, ATOM_ARG_MC
}, {
1031 atom_op_add
, ATOM_ARG_REG
}, {
1032 atom_op_add
, ATOM_ARG_PS
}, {
1033 atom_op_add
, ATOM_ARG_WS
}, {
1034 atom_op_add
, ATOM_ARG_FB
}, {
1035 atom_op_add
, ATOM_ARG_PLL
}, {
1036 atom_op_add
, ATOM_ARG_MC
}, {
1037 atom_op_sub
, ATOM_ARG_REG
}, {
1038 atom_op_sub
, ATOM_ARG_PS
}, {
1039 atom_op_sub
, ATOM_ARG_WS
}, {
1040 atom_op_sub
, ATOM_ARG_FB
}, {
1041 atom_op_sub
, ATOM_ARG_PLL
}, {
1042 atom_op_sub
, ATOM_ARG_MC
}, {
1043 atom_op_setport
, ATOM_PORT_ATI
}, {
1044 atom_op_setport
, ATOM_PORT_PCI
}, {
1045 atom_op_setport
, ATOM_PORT_SYSIO
}, {
1046 atom_op_setregblock
, 0}, {
1047 atom_op_setfbbase
, 0}, {
1048 atom_op_compare
, ATOM_ARG_REG
}, {
1049 atom_op_compare
, ATOM_ARG_PS
}, {
1050 atom_op_compare
, ATOM_ARG_WS
}, {
1051 atom_op_compare
, ATOM_ARG_FB
}, {
1052 atom_op_compare
, ATOM_ARG_PLL
}, {
1053 atom_op_compare
, ATOM_ARG_MC
}, {
1054 atom_op_switch
, 0}, {
1055 atom_op_jump
, ATOM_COND_ALWAYS
}, {
1056 atom_op_jump
, ATOM_COND_EQUAL
}, {
1057 atom_op_jump
, ATOM_COND_BELOW
}, {
1058 atom_op_jump
, ATOM_COND_ABOVE
}, {
1059 atom_op_jump
, ATOM_COND_BELOWOREQUAL
}, {
1060 atom_op_jump
, ATOM_COND_ABOVEOREQUAL
}, {
1061 atom_op_jump
, ATOM_COND_NOTEQUAL
}, {
1062 atom_op_test
, ATOM_ARG_REG
}, {
1063 atom_op_test
, ATOM_ARG_PS
}, {
1064 atom_op_test
, ATOM_ARG_WS
}, {
1065 atom_op_test
, ATOM_ARG_FB
}, {
1066 atom_op_test
, ATOM_ARG_PLL
}, {
1067 atom_op_test
, ATOM_ARG_MC
}, {
1068 atom_op_delay
, ATOM_UNIT_MILLISEC
}, {
1069 atom_op_delay
, ATOM_UNIT_MICROSEC
}, {
1070 atom_op_calltable
, 0}, {
1071 atom_op_repeat
, 0}, {
1072 atom_op_clear
, ATOM_ARG_REG
}, {
1073 atom_op_clear
, ATOM_ARG_PS
}, {
1074 atom_op_clear
, ATOM_ARG_WS
}, {
1075 atom_op_clear
, ATOM_ARG_FB
}, {
1076 atom_op_clear
, ATOM_ARG_PLL
}, {
1077 atom_op_clear
, ATOM_ARG_MC
}, {
1080 atom_op_mask
, ATOM_ARG_REG
}, {
1081 atom_op_mask
, ATOM_ARG_PS
}, {
1082 atom_op_mask
, ATOM_ARG_WS
}, {
1083 atom_op_mask
, ATOM_ARG_FB
}, {
1084 atom_op_mask
, ATOM_ARG_PLL
}, {
1085 atom_op_mask
, ATOM_ARG_MC
}, {
1086 atom_op_postcard
, 0}, {
1088 atom_op_savereg
, 0}, {
1089 atom_op_restorereg
, 0}, {
1090 atom_op_setdatablock
, 0}, {
1091 atom_op_xor
, ATOM_ARG_REG
}, {
1092 atom_op_xor
, ATOM_ARG_PS
}, {
1093 atom_op_xor
, ATOM_ARG_WS
}, {
1094 atom_op_xor
, ATOM_ARG_FB
}, {
1095 atom_op_xor
, ATOM_ARG_PLL
}, {
1096 atom_op_xor
, ATOM_ARG_MC
}, {
1097 atom_op_shl
, ATOM_ARG_REG
}, {
1098 atom_op_shl
, ATOM_ARG_PS
}, {
1099 atom_op_shl
, ATOM_ARG_WS
}, {
1100 atom_op_shl
, ATOM_ARG_FB
}, {
1101 atom_op_shl
, ATOM_ARG_PLL
}, {
1102 atom_op_shl
, ATOM_ARG_MC
}, {
1103 atom_op_shr
, ATOM_ARG_REG
}, {
1104 atom_op_shr
, ATOM_ARG_PS
}, {
1105 atom_op_shr
, ATOM_ARG_WS
}, {
1106 atom_op_shr
, ATOM_ARG_FB
}, {
1107 atom_op_shr
, ATOM_ARG_PLL
}, {
1108 atom_op_shr
, ATOM_ARG_MC
}, {
1109 atom_op_debug
, 0},};
1111 static void atom_execute_table_locked(struct atom_context
*ctx
, int index
, uint32_t * params
)
1113 int base
= CU16(ctx
->cmd_table
+ 4 + 2 * index
);
1114 int len
, ws
, ps
, ptr
;
1116 atom_exec_context ectx
;
1121 len
= CU16(base
+ ATOM_CT_SIZE_PTR
);
1122 ws
= CU8(base
+ ATOM_CT_WS_PTR
);
1123 ps
= CU8(base
+ ATOM_CT_PS_PTR
) & ATOM_CT_PS_MASK
;
1124 ptr
= base
+ ATOM_CT_CODE_PTR
;
1126 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base
, len
, ws
, ps
);
1129 ectx
.ps_shift
= ps
/ 4;
1133 ectx
.ws
= kzalloc(4 * ws
, GFP_KERNEL
);
1140 if (op
< ATOM_OP_NAMES_CNT
)
1141 SDEBUG("%s @ 0x%04X\n", atom_op_names
[op
], ptr
- 1);
1143 SDEBUG("[%d] @ 0x%04X\n", op
, ptr
- 1);
1145 if (op
< ATOM_OP_CNT
&& op
> 0)
1146 opcode_table
[op
].func(&ectx
, &ptr
,
1147 opcode_table
[op
].arg
);
1151 if (op
== ATOM_OP_EOT
)
1161 void atom_execute_table(struct atom_context
*ctx
, int index
, uint32_t * params
)
1163 mutex_lock(&ctx
->mutex
);
1164 /* reset reg block */
1166 /* reset fb window */
1169 ctx
->io_mode
= ATOM_IO_MM
;
1170 atom_execute_table_locked(ctx
, index
, params
);
1171 mutex_unlock(&ctx
->mutex
);
1174 static int atom_iio_len
[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1176 static void atom_index_iio(struct atom_context
*ctx
, int base
)
1178 ctx
->iio
= kzalloc(2 * 256, GFP_KERNEL
);
1179 while (CU8(base
) == ATOM_IIO_START
) {
1180 ctx
->iio
[CU8(base
+ 1)] = base
+ 2;
1182 while (CU8(base
) != ATOM_IIO_END
)
1183 base
+= atom_iio_len
[CU8(base
)];
1188 struct atom_context
*atom_parse(struct card_info
*card
, void *bios
)
1191 struct atom_context
*ctx
=
1192 kzalloc(sizeof(struct atom_context
), GFP_KERNEL
);
1200 if (CU16(0) != ATOM_BIOS_MAGIC
) {
1201 printk(KERN_INFO
"Invalid BIOS magic.\n");
1206 (CSTR(ATOM_ATI_MAGIC_PTR
), ATOM_ATI_MAGIC
,
1207 strlen(ATOM_ATI_MAGIC
))) {
1208 printk(KERN_INFO
"Invalid ATI magic.\n");
1213 base
= CU16(ATOM_ROM_TABLE_PTR
);
1215 (CSTR(base
+ ATOM_ROM_MAGIC_PTR
), ATOM_ROM_MAGIC
,
1216 strlen(ATOM_ROM_MAGIC
))) {
1217 printk(KERN_INFO
"Invalid ATOM magic.\n");
1222 ctx
->cmd_table
= CU16(base
+ ATOM_ROM_CMD_PTR
);
1223 ctx
->data_table
= CU16(base
+ ATOM_ROM_DATA_PTR
);
1224 atom_index_iio(ctx
, CU16(ctx
->data_table
+ ATOM_DATA_IIO_PTR
) + 4);
1226 str
= CSTR(CU16(base
+ ATOM_ROM_MSG_PTR
));
1227 while (*str
&& ((*str
== '\n') || (*str
== '\r')))
1229 /* name string isn't always 0 terminated */
1230 for (i
= 0; i
< 511; i
++) {
1232 if (name
[i
] < '.' || name
[i
] > 'z') {
1237 printk(KERN_INFO
"ATOM BIOS: %s\n", name
);
1242 int atom_asic_init(struct atom_context
*ctx
)
1244 int hwi
= CU16(ctx
->data_table
+ ATOM_DATA_FWI_PTR
);
1248 ps
[0] = cpu_to_le32(CU32(hwi
+ ATOM_FWI_DEFSCLK_PTR
));
1249 ps
[1] = cpu_to_le32(CU32(hwi
+ ATOM_FWI_DEFMCLK_PTR
));
1250 if (!ps
[0] || !ps
[1])
1253 if (!CU16(ctx
->cmd_table
+ 4 + 2 * ATOM_CMD_INIT
))
1255 atom_execute_table(ctx
, ATOM_CMD_INIT
, ps
);
1260 void atom_destroy(struct atom_context
*ctx
)
1267 void atom_parse_data_header(struct atom_context
*ctx
, int index
,
1268 uint16_t * size
, uint8_t * frev
, uint8_t * crev
,
1269 uint16_t * data_start
)
1271 int offset
= index
* 2 + 4;
1272 int idx
= CU16(ctx
->data_table
+ offset
);
1277 *frev
= CU8(idx
+ 2);
1279 *crev
= CU8(idx
+ 3);
1284 void atom_parse_cmd_header(struct atom_context
*ctx
, int index
, uint8_t * frev
,
1287 int offset
= index
* 2 + 4;
1288 int idx
= CU16(ctx
->cmd_table
+ offset
);
1291 *frev
= CU8(idx
+ 2);
1293 *crev
= CU8(idx
+ 3);
1297 int atom_allocate_fb_scratch(struct atom_context
*ctx
)
1299 int index
= GetIndexIntoMasterTable(DATA
, VRAM_UsageByFirmware
);
1300 uint16_t data_offset
;
1302 struct _ATOM_VRAM_USAGE_BY_FIRMWARE
*firmware_usage
;
1304 atom_parse_data_header(ctx
, index
, NULL
, NULL
, NULL
, &data_offset
);
1306 firmware_usage
= (struct _ATOM_VRAM_USAGE_BY_FIRMWARE
*)(ctx
->bios
+ data_offset
);
1308 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1309 firmware_usage
->asFirmwareVramReserveInfo
[0].ulStartAddrUsedByFirmware
,
1310 firmware_usage
->asFirmwareVramReserveInfo
[0].usFirmwareUseInKb
);
1312 usage_bytes
= firmware_usage
->asFirmwareVramReserveInfo
[0].usFirmwareUseInKb
* 1024;
1313 if (usage_bytes
== 0)
1314 usage_bytes
= 20 * 1024;
1315 /* allocate some scratch memory */
1316 ctx
->scratch
= kzalloc(usage_bytes
, GFP_KERNEL
);