2 * Copyright 2008 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
22 * Author: Stanislaw Skowronek
25 #include <linux/module.h>
26 #include <linux/sched.h>
27 #include <linux/slab.h>
28 #include <asm/unaligned.h>
33 #include "atom-names.h"
34 #include "atom-bits.h"
36 #define ATOM_COND_ABOVE 0
37 #define ATOM_COND_ABOVEOREQUAL 1
38 #define ATOM_COND_ALWAYS 2
39 #define ATOM_COND_BELOW 3
40 #define ATOM_COND_BELOWOREQUAL 4
41 #define ATOM_COND_EQUAL 5
42 #define ATOM_COND_NOTEQUAL 6
44 #define ATOM_PORT_ATI 0
45 #define ATOM_PORT_PCI 1
46 #define ATOM_PORT_SYSIO 2
48 #define ATOM_UNIT_MICROSEC 0
49 #define ATOM_UNIT_MILLISEC 1
55 struct atom_context
*ctx
;
60 unsigned long last_jump_jiffies
;
65 static int atom_execute_table_locked(struct atom_context
*ctx
, int index
, uint32_t * params
);
66 int atom_execute_table(struct atom_context
*ctx
, int index
, uint32_t * params
);
68 static uint32_t atom_arg_mask
[8] =
69 { 0xFFFFFFFF, 0xFFFF, 0xFFFF00, 0xFFFF0000, 0xFF, 0xFF00, 0xFF0000,
71 static int atom_arg_shift
[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
73 static int atom_dst_to_src
[8][4] = {
74 /* translate destination alignment field to the source alignment encoding */
84 static int atom_def_dst
[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
86 static int debug_depth
= 0;
88 static void debug_print_spaces(int n
)
94 #define DEBUG(...) do if (atom_debug) { printk(KERN_DEBUG __VA_ARGS__); } while (0)
95 #define SDEBUG(...) do if (atom_debug) { printk(KERN_DEBUG); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
97 #define DEBUG(...) do { } while (0)
98 #define SDEBUG(...) do { } while (0)
101 static uint32_t atom_iio_execute(struct atom_context
*ctx
, int base
,
102 uint32_t index
, uint32_t data
)
104 uint32_t temp
= 0xCDCDCDCD;
111 temp
= ctx
->card
->ioreg_read(ctx
->card
, CU16(base
+ 1));
115 (void)ctx
->card
->ioreg_read(ctx
->card
, CU16(base
+ 1));
116 ctx
->card
->ioreg_write(ctx
->card
, CU16(base
+ 1), temp
);
121 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
127 (0xFFFFFFFF >> (32 - CU8(base
+ 1))) << CU8(base
+
131 case ATOM_IIO_MOVE_INDEX
:
133 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
136 ((index
>> CU8(base
+ 2)) &
137 (0xFFFFFFFF >> (32 - CU8(base
+ 1)))) << CU8(base
+
141 case ATOM_IIO_MOVE_DATA
:
143 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
146 ((data
>> CU8(base
+ 2)) &
147 (0xFFFFFFFF >> (32 - CU8(base
+ 1)))) << CU8(base
+
151 case ATOM_IIO_MOVE_ATTR
:
153 ~((0xFFFFFFFF >> (32 - CU8(base
+ 1))) <<
157 io_attr
>> CU8(base
+ 2)) & (0xFFFFFFFF >> (32 -
168 printk(KERN_INFO
"Unknown IIO opcode.\n");
173 static uint32_t atom_get_src_int(atom_exec_context
*ctx
, uint8_t attr
,
174 int *ptr
, uint32_t *saved
, int print
)
176 uint32_t idx
, val
= 0xCDCDCDCD, align
, arg
;
177 struct atom_context
*gctx
= ctx
->ctx
;
179 align
= (attr
>> 3) & 7;
185 DEBUG("REG[0x%04X]", idx
);
186 idx
+= gctx
->reg_block
;
187 switch (gctx
->io_mode
) {
189 val
= gctx
->card
->reg_read(gctx
->card
, idx
);
193 "PCI registers are not implemented.\n");
197 "SYSIO registers are not implemented.\n");
200 if (!(gctx
->io_mode
& 0x80)) {
201 printk(KERN_INFO
"Bad IO mode.\n");
204 if (!gctx
->iio
[gctx
->io_mode
& 0x7F]) {
206 "Undefined indirect IO read method %d.\n",
207 gctx
->io_mode
& 0x7F);
211 atom_iio_execute(gctx
,
212 gctx
->iio
[gctx
->io_mode
& 0x7F],
219 /* get_unaligned_le32 avoids unaligned accesses from atombios
220 * tables, noticed on a DEC Alpha. */
221 val
= get_unaligned_le32((u32
*)&ctx
->ps
[idx
]);
223 DEBUG("PS[0x%02X,0x%04X]", idx
, val
);
229 DEBUG("WS[0x%02X]", idx
);
231 case ATOM_WS_QUOTIENT
:
232 val
= gctx
->divmul
[0];
234 case ATOM_WS_REMAINDER
:
235 val
= gctx
->divmul
[1];
237 case ATOM_WS_DATAPTR
:
238 val
= gctx
->data_block
;
243 case ATOM_WS_OR_MASK
:
244 val
= 1 << gctx
->shift
;
246 case ATOM_WS_AND_MASK
:
247 val
= ~(1 << gctx
->shift
);
249 case ATOM_WS_FB_WINDOW
:
252 case ATOM_WS_ATTRIBUTES
:
256 val
= gctx
->reg_block
;
266 if (gctx
->data_block
)
267 DEBUG("ID[0x%04X+%04X]", idx
, gctx
->data_block
);
269 DEBUG("ID[0x%04X]", idx
);
271 val
= U32(idx
+ gctx
->data_block
);
276 val
= gctx
->scratch
[((gctx
->fb_base
+ idx
) / 4)];
278 DEBUG("FB[0x%02X]", idx
);
286 DEBUG("IMM 0x%08X\n", val
);
290 case ATOM_SRC_WORD16
:
294 DEBUG("IMM 0x%04X\n", val
);
298 case ATOM_SRC_BYTE16
:
299 case ATOM_SRC_BYTE24
:
303 DEBUG("IMM 0x%02X\n", val
);
311 DEBUG("PLL[0x%02X]", idx
);
312 val
= gctx
->card
->pll_read(gctx
->card
, idx
);
318 DEBUG("MC[0x%02X]", idx
);
319 val
= gctx
->card
->mc_read(gctx
->card
, idx
);
324 val
&= atom_arg_mask
[align
];
325 val
>>= atom_arg_shift
[align
];
329 DEBUG(".[31:0] -> 0x%08X\n", val
);
332 DEBUG(".[15:0] -> 0x%04X\n", val
);
335 DEBUG(".[23:8] -> 0x%04X\n", val
);
337 case ATOM_SRC_WORD16
:
338 DEBUG(".[31:16] -> 0x%04X\n", val
);
341 DEBUG(".[7:0] -> 0x%02X\n", val
);
344 DEBUG(".[15:8] -> 0x%02X\n", val
);
346 case ATOM_SRC_BYTE16
:
347 DEBUG(".[23:16] -> 0x%02X\n", val
);
349 case ATOM_SRC_BYTE24
:
350 DEBUG(".[31:24] -> 0x%02X\n", val
);
356 static void atom_skip_src_int(atom_exec_context
*ctx
, uint8_t attr
, int *ptr
)
358 uint32_t align
= (attr
>> 3) & 7, arg
= attr
& 7;
378 case ATOM_SRC_WORD16
:
383 case ATOM_SRC_BYTE16
:
384 case ATOM_SRC_BYTE24
:
392 static uint32_t atom_get_src(atom_exec_context
*ctx
, uint8_t attr
, int *ptr
)
394 return atom_get_src_int(ctx
, attr
, ptr
, NULL
, 1);
397 static uint32_t atom_get_src_direct(atom_exec_context
*ctx
, uint8_t align
, int *ptr
)
399 uint32_t val
= 0xCDCDCDCD;
408 case ATOM_SRC_WORD16
:
414 case ATOM_SRC_BYTE16
:
415 case ATOM_SRC_BYTE24
:
423 static uint32_t atom_get_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
,
424 int *ptr
, uint32_t *saved
, int print
)
426 return atom_get_src_int(ctx
,
427 arg
| atom_dst_to_src
[(attr
>> 3) &
428 7][(attr
>> 6) & 3] << 3,
432 static void atom_skip_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
, int *ptr
)
434 atom_skip_src_int(ctx
,
435 arg
| atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) &
439 static void atom_put_dst(atom_exec_context
*ctx
, int arg
, uint8_t attr
,
440 int *ptr
, uint32_t val
, uint32_t saved
)
443 atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) & 3], old_val
=
445 struct atom_context
*gctx
= ctx
->ctx
;
446 old_val
&= atom_arg_mask
[align
] >> atom_arg_shift
[align
];
447 val
<<= atom_arg_shift
[align
];
448 val
&= atom_arg_mask
[align
];
449 saved
&= ~atom_arg_mask
[align
];
455 DEBUG("REG[0x%04X]", idx
);
456 idx
+= gctx
->reg_block
;
457 switch (gctx
->io_mode
) {
460 gctx
->card
->reg_write(gctx
->card
, idx
,
463 gctx
->card
->reg_write(gctx
->card
, idx
, val
);
467 "PCI registers are not implemented.\n");
471 "SYSIO registers are not implemented.\n");
474 if (!(gctx
->io_mode
& 0x80)) {
475 printk(KERN_INFO
"Bad IO mode.\n");
478 if (!gctx
->iio
[gctx
->io_mode
& 0xFF]) {
480 "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 gctx
->scratch
[((gctx
->fb_base
+ idx
) / 4)] = val
;
531 DEBUG("FB[0x%02X]", idx
);
536 DEBUG("PLL[0x%02X]", idx
);
537 gctx
->card
->pll_write(gctx
->card
, idx
, val
);
542 DEBUG("MC[0x%02X]", idx
);
543 gctx
->card
->mc_write(gctx
->card
, idx
, val
);
548 DEBUG(".[31:0] <- 0x%08X\n", old_val
);
551 DEBUG(".[15:0] <- 0x%04X\n", old_val
);
554 DEBUG(".[23:8] <- 0x%04X\n", old_val
);
556 case ATOM_SRC_WORD16
:
557 DEBUG(".[31:16] <- 0x%04X\n", old_val
);
560 DEBUG(".[7:0] <- 0x%02X\n", old_val
);
563 DEBUG(".[15:8] <- 0x%02X\n", old_val
);
565 case ATOM_SRC_BYTE16
:
566 DEBUG(".[23:16] <- 0x%02X\n", old_val
);
568 case ATOM_SRC_BYTE24
:
569 DEBUG(".[31:24] <- 0x%02X\n", old_val
);
574 static void atom_op_add(atom_exec_context
*ctx
, int *ptr
, int arg
)
576 uint8_t attr
= U8((*ptr
)++);
577 uint32_t dst
, src
, saved
;
580 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
582 src
= atom_get_src(ctx
, attr
, ptr
);
585 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
588 static void atom_op_and(atom_exec_context
*ctx
, int *ptr
, int arg
)
590 uint8_t attr
= U8((*ptr
)++);
591 uint32_t dst
, src
, saved
;
594 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
596 src
= atom_get_src(ctx
, attr
, ptr
);
599 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
602 static void atom_op_beep(atom_exec_context
*ctx
, int *ptr
, int arg
)
604 printk("ATOM BIOS beeped!\n");
607 static void atom_op_calltable(atom_exec_context
*ctx
, int *ptr
, int arg
)
609 int idx
= U8((*ptr
)++);
612 if (idx
< ATOM_TABLE_NAMES_CNT
)
613 SDEBUG(" table: %d (%s)\n", idx
, atom_table_names
[idx
]);
615 SDEBUG(" table: %d\n", idx
);
616 if (U16(ctx
->ctx
->cmd_table
+ 4 + 2 * idx
))
617 r
= atom_execute_table_locked(ctx
->ctx
, idx
, ctx
->ps
+ ctx
->ps_shift
);
623 static void atom_op_clear(atom_exec_context
*ctx
, int *ptr
, int arg
)
625 uint8_t attr
= U8((*ptr
)++);
629 attr
|= atom_def_dst
[attr
>> 3] << 6;
630 atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 0);
632 atom_put_dst(ctx
, arg
, attr
, &dptr
, 0, saved
);
635 static void atom_op_compare(atom_exec_context
*ctx
, int *ptr
, int arg
)
637 uint8_t attr
= U8((*ptr
)++);
640 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
642 src
= atom_get_src(ctx
, attr
, ptr
);
643 ctx
->ctx
->cs_equal
= (dst
== src
);
644 ctx
->ctx
->cs_above
= (dst
> src
);
645 SDEBUG(" result: %s %s\n", ctx
->ctx
->cs_equal
? "EQ" : "NE",
646 ctx
->ctx
->cs_above
? "GT" : "LE");
649 static void atom_op_delay(atom_exec_context
*ctx
, int *ptr
, int arg
)
651 uint8_t count
= U8((*ptr
)++);
652 SDEBUG(" count: %d\n", count
);
653 if (arg
== ATOM_UNIT_MICROSEC
)
656 schedule_timeout_uninterruptible(msecs_to_jiffies(count
));
659 static void atom_op_div(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
);
668 ctx
->ctx
->divmul
[0] = dst
/ src
;
669 ctx
->ctx
->divmul
[1] = dst
% src
;
671 ctx
->ctx
->divmul
[0] = 0;
672 ctx
->ctx
->divmul
[1] = 0;
676 static void atom_op_eot(atom_exec_context
*ctx
, int *ptr
, int arg
)
678 /* functionally, a nop */
681 static void atom_op_jump(atom_exec_context
*ctx
, int *ptr
, int arg
)
683 int execute
= 0, target
= U16(*ptr
);
684 unsigned long cjiffies
;
688 case ATOM_COND_ABOVE
:
689 execute
= ctx
->ctx
->cs_above
;
691 case ATOM_COND_ABOVEOREQUAL
:
692 execute
= ctx
->ctx
->cs_above
|| ctx
->ctx
->cs_equal
;
694 case ATOM_COND_ALWAYS
:
697 case ATOM_COND_BELOW
:
698 execute
= !(ctx
->ctx
->cs_above
|| ctx
->ctx
->cs_equal
);
700 case ATOM_COND_BELOWOREQUAL
:
701 execute
= !ctx
->ctx
->cs_above
;
703 case ATOM_COND_EQUAL
:
704 execute
= ctx
->ctx
->cs_equal
;
706 case ATOM_COND_NOTEQUAL
:
707 execute
= !ctx
->ctx
->cs_equal
;
710 if (arg
!= ATOM_COND_ALWAYS
)
711 SDEBUG(" taken: %s\n", execute
? "yes" : "no");
712 SDEBUG(" target: 0x%04X\n", target
);
714 if (ctx
->last_jump
== (ctx
->start
+ target
)) {
716 if (time_after(cjiffies
, ctx
->last_jump_jiffies
)) {
717 cjiffies
-= ctx
->last_jump_jiffies
;
718 if ((jiffies_to_msecs(cjiffies
) > 5000)) {
719 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
723 /* jiffies wrap around we will just wait a little longer */
724 ctx
->last_jump_jiffies
= jiffies
;
727 ctx
->last_jump
= ctx
->start
+ target
;
728 ctx
->last_jump_jiffies
= jiffies
;
730 *ptr
= ctx
->start
+ target
;
734 static void atom_op_mask(atom_exec_context
*ctx
, int *ptr
, int arg
)
736 uint8_t attr
= U8((*ptr
)++);
737 uint32_t dst
, src1
, src2
, saved
;
740 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
742 src1
= atom_get_src_direct(ctx
, ((attr
>> 3) & 7), ptr
);
744 src2
= atom_get_src(ctx
, attr
, ptr
);
748 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
751 static void atom_op_move(atom_exec_context
*ctx
, int *ptr
, int arg
)
753 uint8_t attr
= U8((*ptr
)++);
756 if (((attr
>> 3) & 7) != ATOM_SRC_DWORD
)
757 atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 0);
759 atom_skip_dst(ctx
, arg
, attr
, ptr
);
763 src
= atom_get_src(ctx
, attr
, ptr
);
765 atom_put_dst(ctx
, arg
, attr
, &dptr
, src
, saved
);
768 static void atom_op_mul(atom_exec_context
*ctx
, int *ptr
, int arg
)
770 uint8_t attr
= U8((*ptr
)++);
773 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
775 src
= atom_get_src(ctx
, attr
, ptr
);
776 ctx
->ctx
->divmul
[0] = dst
* src
;
779 static void atom_op_nop(atom_exec_context
*ctx
, int *ptr
, int arg
)
784 static void atom_op_or(atom_exec_context
*ctx
, int *ptr
, int arg
)
786 uint8_t attr
= U8((*ptr
)++);
787 uint32_t dst
, src
, saved
;
790 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
792 src
= atom_get_src(ctx
, attr
, ptr
);
795 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
798 static void atom_op_postcard(atom_exec_context
*ctx
, int *ptr
, int arg
)
800 uint8_t val
= U8((*ptr
)++);
801 SDEBUG("POST card output: 0x%02X\n", val
);
804 static void atom_op_repeat(atom_exec_context
*ctx
, int *ptr
, int arg
)
806 printk(KERN_INFO
"unimplemented!\n");
809 static void atom_op_restorereg(atom_exec_context
*ctx
, int *ptr
, int arg
)
811 printk(KERN_INFO
"unimplemented!\n");
814 static void atom_op_savereg(atom_exec_context
*ctx
, int *ptr
, int arg
)
816 printk(KERN_INFO
"unimplemented!\n");
819 static void atom_op_setdatablock(atom_exec_context
*ctx
, int *ptr
, int arg
)
823 SDEBUG(" block: %d\n", idx
);
825 ctx
->ctx
->data_block
= 0;
827 ctx
->ctx
->data_block
= ctx
->start
;
829 ctx
->ctx
->data_block
= U16(ctx
->ctx
->data_table
+ 4 + 2 * idx
);
830 SDEBUG(" base: 0x%04X\n", ctx
->ctx
->data_block
);
833 static void atom_op_setfbbase(atom_exec_context
*ctx
, int *ptr
, int arg
)
835 uint8_t attr
= U8((*ptr
)++);
836 SDEBUG(" fb_base: ");
837 ctx
->ctx
->fb_base
= atom_get_src(ctx
, attr
, ptr
);
840 static void atom_op_setport(atom_exec_context
*ctx
, int *ptr
, int arg
)
846 if (port
< ATOM_IO_NAMES_CNT
)
847 SDEBUG(" port: %d (%s)\n", port
, atom_io_names
[port
]);
849 SDEBUG(" port: %d\n", port
);
851 ctx
->ctx
->io_mode
= ATOM_IO_MM
;
853 ctx
->ctx
->io_mode
= ATOM_IO_IIO
| port
;
857 ctx
->ctx
->io_mode
= ATOM_IO_PCI
;
860 case ATOM_PORT_SYSIO
:
861 ctx
->ctx
->io_mode
= ATOM_IO_SYSIO
;
867 static void atom_op_setregblock(atom_exec_context
*ctx
, int *ptr
, int arg
)
869 ctx
->ctx
->reg_block
= U16(*ptr
);
871 SDEBUG(" base: 0x%04X\n", ctx
->ctx
->reg_block
);
874 static void atom_op_shift_left(atom_exec_context
*ctx
, int *ptr
, int arg
)
876 uint8_t attr
= U8((*ptr
)++), shift
;
880 attr
|= atom_def_dst
[attr
>> 3] << 6;
882 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
883 shift
= atom_get_src_direct(ctx
, ATOM_SRC_BYTE0
, ptr
);
884 SDEBUG(" shift: %d\n", shift
);
887 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
890 static void atom_op_shift_right(atom_exec_context
*ctx
, int *ptr
, int arg
)
892 uint8_t attr
= U8((*ptr
)++), shift
;
896 attr
|= atom_def_dst
[attr
>> 3] << 6;
898 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
899 shift
= atom_get_src_direct(ctx
, ATOM_SRC_BYTE0
, ptr
);
900 SDEBUG(" shift: %d\n", shift
);
903 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
906 static void atom_op_shl(atom_exec_context
*ctx
, int *ptr
, int arg
)
908 uint8_t attr
= U8((*ptr
)++), shift
;
911 uint32_t dst_align
= atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) & 3];
913 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
914 /* op needs to full dst value */
916 shift
= atom_get_src(ctx
, attr
, ptr
);
917 SDEBUG(" shift: %d\n", shift
);
919 dst
&= atom_arg_mask
[dst_align
];
920 dst
>>= atom_arg_shift
[dst_align
];
922 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
925 static void atom_op_shr(atom_exec_context
*ctx
, int *ptr
, int arg
)
927 uint8_t attr
= U8((*ptr
)++), shift
;
930 uint32_t dst_align
= atom_dst_to_src
[(attr
>> 3) & 7][(attr
>> 6) & 3];
932 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
933 /* op needs to full dst value */
935 shift
= atom_get_src(ctx
, attr
, ptr
);
936 SDEBUG(" shift: %d\n", shift
);
938 dst
&= atom_arg_mask
[dst_align
];
939 dst
>>= atom_arg_shift
[dst_align
];
941 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
944 static void atom_op_sub(atom_exec_context
*ctx
, int *ptr
, int arg
)
946 uint8_t attr
= U8((*ptr
)++);
947 uint32_t dst
, src
, saved
;
950 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
952 src
= atom_get_src(ctx
, attr
, ptr
);
955 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
958 static void atom_op_switch(atom_exec_context
*ctx
, int *ptr
, int arg
)
960 uint8_t attr
= U8((*ptr
)++);
961 uint32_t src
, val
, target
;
963 src
= atom_get_src(ctx
, attr
, ptr
);
964 while (U16(*ptr
) != ATOM_CASE_END
)
965 if (U8(*ptr
) == ATOM_CASE_MAGIC
) {
969 atom_get_src(ctx
, (attr
& 0x38) | ATOM_ARG_IMM
,
973 SDEBUG(" target: %04X\n", target
);
974 *ptr
= ctx
->start
+ target
;
979 printk(KERN_INFO
"Bad case.\n");
985 static void atom_op_test(atom_exec_context
*ctx
, int *ptr
, int arg
)
987 uint8_t attr
= U8((*ptr
)++);
990 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, NULL
, 1);
992 src
= atom_get_src(ctx
, attr
, ptr
);
993 ctx
->ctx
->cs_equal
= ((dst
& src
) == 0);
994 SDEBUG(" result: %s\n", ctx
->ctx
->cs_equal
? "EQ" : "NE");
997 static void atom_op_xor(atom_exec_context
*ctx
, int *ptr
, int arg
)
999 uint8_t attr
= U8((*ptr
)++);
1000 uint32_t dst
, src
, saved
;
1003 dst
= atom_get_dst(ctx
, arg
, attr
, ptr
, &saved
, 1);
1005 src
= atom_get_src(ctx
, attr
, ptr
);
1008 atom_put_dst(ctx
, arg
, attr
, &dptr
, dst
, saved
);
1011 static void atom_op_debug(atom_exec_context
*ctx
, int *ptr
, int arg
)
1013 printk(KERN_INFO
"unimplemented!\n");
1017 void (*func
) (atom_exec_context
*, int *, int);
1019 } opcode_table
[ATOM_OP_CNT
] = {
1022 atom_op_move
, ATOM_ARG_REG
}, {
1023 atom_op_move
, ATOM_ARG_PS
}, {
1024 atom_op_move
, ATOM_ARG_WS
}, {
1025 atom_op_move
, ATOM_ARG_FB
}, {
1026 atom_op_move
, ATOM_ARG_PLL
}, {
1027 atom_op_move
, ATOM_ARG_MC
}, {
1028 atom_op_and
, ATOM_ARG_REG
}, {
1029 atom_op_and
, ATOM_ARG_PS
}, {
1030 atom_op_and
, ATOM_ARG_WS
}, {
1031 atom_op_and
, ATOM_ARG_FB
}, {
1032 atom_op_and
, ATOM_ARG_PLL
}, {
1033 atom_op_and
, ATOM_ARG_MC
}, {
1034 atom_op_or
, ATOM_ARG_REG
}, {
1035 atom_op_or
, ATOM_ARG_PS
}, {
1036 atom_op_or
, ATOM_ARG_WS
}, {
1037 atom_op_or
, ATOM_ARG_FB
}, {
1038 atom_op_or
, ATOM_ARG_PLL
}, {
1039 atom_op_or
, ATOM_ARG_MC
}, {
1040 atom_op_shift_left
, ATOM_ARG_REG
}, {
1041 atom_op_shift_left
, ATOM_ARG_PS
}, {
1042 atom_op_shift_left
, ATOM_ARG_WS
}, {
1043 atom_op_shift_left
, ATOM_ARG_FB
}, {
1044 atom_op_shift_left
, ATOM_ARG_PLL
}, {
1045 atom_op_shift_left
, ATOM_ARG_MC
}, {
1046 atom_op_shift_right
, ATOM_ARG_REG
}, {
1047 atom_op_shift_right
, ATOM_ARG_PS
}, {
1048 atom_op_shift_right
, ATOM_ARG_WS
}, {
1049 atom_op_shift_right
, ATOM_ARG_FB
}, {
1050 atom_op_shift_right
, ATOM_ARG_PLL
}, {
1051 atom_op_shift_right
, ATOM_ARG_MC
}, {
1052 atom_op_mul
, ATOM_ARG_REG
}, {
1053 atom_op_mul
, ATOM_ARG_PS
}, {
1054 atom_op_mul
, ATOM_ARG_WS
}, {
1055 atom_op_mul
, ATOM_ARG_FB
}, {
1056 atom_op_mul
, ATOM_ARG_PLL
}, {
1057 atom_op_mul
, ATOM_ARG_MC
}, {
1058 atom_op_div
, ATOM_ARG_REG
}, {
1059 atom_op_div
, ATOM_ARG_PS
}, {
1060 atom_op_div
, ATOM_ARG_WS
}, {
1061 atom_op_div
, ATOM_ARG_FB
}, {
1062 atom_op_div
, ATOM_ARG_PLL
}, {
1063 atom_op_div
, ATOM_ARG_MC
}, {
1064 atom_op_add
, ATOM_ARG_REG
}, {
1065 atom_op_add
, ATOM_ARG_PS
}, {
1066 atom_op_add
, ATOM_ARG_WS
}, {
1067 atom_op_add
, ATOM_ARG_FB
}, {
1068 atom_op_add
, ATOM_ARG_PLL
}, {
1069 atom_op_add
, ATOM_ARG_MC
}, {
1070 atom_op_sub
, ATOM_ARG_REG
}, {
1071 atom_op_sub
, ATOM_ARG_PS
}, {
1072 atom_op_sub
, ATOM_ARG_WS
}, {
1073 atom_op_sub
, ATOM_ARG_FB
}, {
1074 atom_op_sub
, ATOM_ARG_PLL
}, {
1075 atom_op_sub
, ATOM_ARG_MC
}, {
1076 atom_op_setport
, ATOM_PORT_ATI
}, {
1077 atom_op_setport
, ATOM_PORT_PCI
}, {
1078 atom_op_setport
, ATOM_PORT_SYSIO
}, {
1079 atom_op_setregblock
, 0}, {
1080 atom_op_setfbbase
, 0}, {
1081 atom_op_compare
, ATOM_ARG_REG
}, {
1082 atom_op_compare
, ATOM_ARG_PS
}, {
1083 atom_op_compare
, ATOM_ARG_WS
}, {
1084 atom_op_compare
, ATOM_ARG_FB
}, {
1085 atom_op_compare
, ATOM_ARG_PLL
}, {
1086 atom_op_compare
, ATOM_ARG_MC
}, {
1087 atom_op_switch
, 0}, {
1088 atom_op_jump
, ATOM_COND_ALWAYS
}, {
1089 atom_op_jump
, ATOM_COND_EQUAL
}, {
1090 atom_op_jump
, ATOM_COND_BELOW
}, {
1091 atom_op_jump
, ATOM_COND_ABOVE
}, {
1092 atom_op_jump
, ATOM_COND_BELOWOREQUAL
}, {
1093 atom_op_jump
, ATOM_COND_ABOVEOREQUAL
}, {
1094 atom_op_jump
, ATOM_COND_NOTEQUAL
}, {
1095 atom_op_test
, ATOM_ARG_REG
}, {
1096 atom_op_test
, ATOM_ARG_PS
}, {
1097 atom_op_test
, ATOM_ARG_WS
}, {
1098 atom_op_test
, ATOM_ARG_FB
}, {
1099 atom_op_test
, ATOM_ARG_PLL
}, {
1100 atom_op_test
, ATOM_ARG_MC
}, {
1101 atom_op_delay
, ATOM_UNIT_MILLISEC
}, {
1102 atom_op_delay
, ATOM_UNIT_MICROSEC
}, {
1103 atom_op_calltable
, 0}, {
1104 atom_op_repeat
, 0}, {
1105 atom_op_clear
, ATOM_ARG_REG
}, {
1106 atom_op_clear
, ATOM_ARG_PS
}, {
1107 atom_op_clear
, ATOM_ARG_WS
}, {
1108 atom_op_clear
, ATOM_ARG_FB
}, {
1109 atom_op_clear
, ATOM_ARG_PLL
}, {
1110 atom_op_clear
, ATOM_ARG_MC
}, {
1113 atom_op_mask
, ATOM_ARG_REG
}, {
1114 atom_op_mask
, ATOM_ARG_PS
}, {
1115 atom_op_mask
, ATOM_ARG_WS
}, {
1116 atom_op_mask
, ATOM_ARG_FB
}, {
1117 atom_op_mask
, ATOM_ARG_PLL
}, {
1118 atom_op_mask
, ATOM_ARG_MC
}, {
1119 atom_op_postcard
, 0}, {
1121 atom_op_savereg
, 0}, {
1122 atom_op_restorereg
, 0}, {
1123 atom_op_setdatablock
, 0}, {
1124 atom_op_xor
, ATOM_ARG_REG
}, {
1125 atom_op_xor
, ATOM_ARG_PS
}, {
1126 atom_op_xor
, ATOM_ARG_WS
}, {
1127 atom_op_xor
, ATOM_ARG_FB
}, {
1128 atom_op_xor
, ATOM_ARG_PLL
}, {
1129 atom_op_xor
, ATOM_ARG_MC
}, {
1130 atom_op_shl
, ATOM_ARG_REG
}, {
1131 atom_op_shl
, ATOM_ARG_PS
}, {
1132 atom_op_shl
, ATOM_ARG_WS
}, {
1133 atom_op_shl
, ATOM_ARG_FB
}, {
1134 atom_op_shl
, ATOM_ARG_PLL
}, {
1135 atom_op_shl
, ATOM_ARG_MC
}, {
1136 atom_op_shr
, ATOM_ARG_REG
}, {
1137 atom_op_shr
, ATOM_ARG_PS
}, {
1138 atom_op_shr
, ATOM_ARG_WS
}, {
1139 atom_op_shr
, ATOM_ARG_FB
}, {
1140 atom_op_shr
, ATOM_ARG_PLL
}, {
1141 atom_op_shr
, ATOM_ARG_MC
}, {
1142 atom_op_debug
, 0},};
1144 static int atom_execute_table_locked(struct atom_context
*ctx
, int index
, uint32_t * params
)
1146 int base
= CU16(ctx
->cmd_table
+ 4 + 2 * index
);
1147 int len
, ws
, ps
, ptr
;
1149 atom_exec_context ectx
;
1155 len
= CU16(base
+ ATOM_CT_SIZE_PTR
);
1156 ws
= CU8(base
+ ATOM_CT_WS_PTR
);
1157 ps
= CU8(base
+ ATOM_CT_PS_PTR
) & ATOM_CT_PS_MASK
;
1158 ptr
= base
+ ATOM_CT_CODE_PTR
;
1160 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base
, len
, ws
, ps
);
1163 ectx
.ps_shift
= ps
/ 4;
1169 ectx
.ws
= kzalloc(4 * ws
, GFP_KERNEL
);
1176 if (op
< ATOM_OP_NAMES_CNT
)
1177 SDEBUG("%s @ 0x%04X\n", atom_op_names
[op
], ptr
- 1);
1179 SDEBUG("[%d] @ 0x%04X\n", op
, ptr
- 1);
1181 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",
1182 base
, len
, ws
, ps
, ptr
- 1);
1187 if (op
< ATOM_OP_CNT
&& op
> 0)
1188 opcode_table
[op
].func(&ectx
, &ptr
,
1189 opcode_table
[op
].arg
);
1193 if (op
== ATOM_OP_EOT
)
1205 int atom_execute_table(struct atom_context
*ctx
, int index
, uint32_t * params
)
1209 mutex_lock(&ctx
->mutex
);
1210 /* reset reg block */
1212 /* reset fb window */
1215 ctx
->io_mode
= ATOM_IO_MM
;
1216 r
= atom_execute_table_locked(ctx
, index
, params
);
1217 mutex_unlock(&ctx
->mutex
);
1221 static int atom_iio_len
[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1223 static void atom_index_iio(struct atom_context
*ctx
, int base
)
1225 ctx
->iio
= kzalloc(2 * 256, GFP_KERNEL
);
1226 while (CU8(base
) == ATOM_IIO_START
) {
1227 ctx
->iio
[CU8(base
+ 1)] = base
+ 2;
1229 while (CU8(base
) != ATOM_IIO_END
)
1230 base
+= atom_iio_len
[CU8(base
)];
1235 struct atom_context
*atom_parse(struct card_info
*card
, void *bios
)
1238 struct atom_context
*ctx
=
1239 kzalloc(sizeof(struct atom_context
), GFP_KERNEL
);
1247 if (CU16(0) != ATOM_BIOS_MAGIC
) {
1248 printk(KERN_INFO
"Invalid BIOS magic.\n");
1253 (CSTR(ATOM_ATI_MAGIC_PTR
), ATOM_ATI_MAGIC
,
1254 strlen(ATOM_ATI_MAGIC
))) {
1255 printk(KERN_INFO
"Invalid ATI magic.\n");
1260 base
= CU16(ATOM_ROM_TABLE_PTR
);
1262 (CSTR(base
+ ATOM_ROM_MAGIC_PTR
), ATOM_ROM_MAGIC
,
1263 strlen(ATOM_ROM_MAGIC
))) {
1264 printk(KERN_INFO
"Invalid ATOM magic.\n");
1269 ctx
->cmd_table
= CU16(base
+ ATOM_ROM_CMD_PTR
);
1270 ctx
->data_table
= CU16(base
+ ATOM_ROM_DATA_PTR
);
1271 atom_index_iio(ctx
, CU16(ctx
->data_table
+ ATOM_DATA_IIO_PTR
) + 4);
1273 str
= CSTR(CU16(base
+ ATOM_ROM_MSG_PTR
));
1274 while (*str
&& ((*str
== '\n') || (*str
== '\r')))
1276 /* name string isn't always 0 terminated */
1277 for (i
= 0; i
< 511; i
++) {
1279 if (name
[i
] < '.' || name
[i
] > 'z') {
1284 printk(KERN_INFO
"ATOM BIOS: %s\n", name
);
1289 int atom_asic_init(struct atom_context
*ctx
)
1291 int hwi
= CU16(ctx
->data_table
+ ATOM_DATA_FWI_PTR
);
1295 ps
[0] = cpu_to_le32(CU32(hwi
+ ATOM_FWI_DEFSCLK_PTR
));
1296 ps
[1] = cpu_to_le32(CU32(hwi
+ ATOM_FWI_DEFMCLK_PTR
));
1297 if (!ps
[0] || !ps
[1])
1300 if (!CU16(ctx
->cmd_table
+ 4 + 2 * ATOM_CMD_INIT
))
1302 return atom_execute_table(ctx
, ATOM_CMD_INIT
, ps
);
1305 void atom_destroy(struct atom_context
*ctx
)
1312 bool atom_parse_data_header(struct atom_context
*ctx
, int index
,
1313 uint16_t * size
, uint8_t * frev
, uint8_t * crev
,
1314 uint16_t * data_start
)
1316 int offset
= index
* 2 + 4;
1317 int idx
= CU16(ctx
->data_table
+ offset
);
1318 u16
*mdt
= (u16
*)(ctx
->bios
+ ctx
->data_table
+ 4);
1326 *frev
= CU8(idx
+ 2);
1328 *crev
= CU8(idx
+ 3);
1333 bool atom_parse_cmd_header(struct atom_context
*ctx
, int index
, uint8_t * frev
,
1336 int offset
= index
* 2 + 4;
1337 int idx
= CU16(ctx
->cmd_table
+ offset
);
1338 u16
*mct
= (u16
*)(ctx
->bios
+ ctx
->cmd_table
+ 4);
1344 *frev
= CU8(idx
+ 2);
1346 *crev
= CU8(idx
+ 3);
1350 int atom_allocate_fb_scratch(struct atom_context
*ctx
)
1352 int index
= GetIndexIntoMasterTable(DATA
, VRAM_UsageByFirmware
);
1353 uint16_t data_offset
;
1354 int usage_bytes
= 0;
1355 struct _ATOM_VRAM_USAGE_BY_FIRMWARE
*firmware_usage
;
1357 if (atom_parse_data_header(ctx
, index
, NULL
, NULL
, NULL
, &data_offset
)) {
1358 firmware_usage
= (struct _ATOM_VRAM_USAGE_BY_FIRMWARE
*)(ctx
->bios
+ data_offset
);
1360 DRM_DEBUG("atom firmware requested %08x %dkb\n",
1361 firmware_usage
->asFirmwareVramReserveInfo
[0].ulStartAddrUsedByFirmware
,
1362 firmware_usage
->asFirmwareVramReserveInfo
[0].usFirmwareUseInKb
);
1364 usage_bytes
= firmware_usage
->asFirmwareVramReserveInfo
[0].usFirmwareUseInKb
* 1024;
1366 if (usage_bytes
== 0)
1367 usage_bytes
= 20 * 1024;
1368 /* allocate some scratch memory */
1369 ctx
->scratch
= kzalloc(usage_bytes
, GFP_KERNEL
);