Bug Summary

File:dev/pci/drm/radeon/atom.c
Warning:line 931, column 2
Value stored to 'dst' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name atom.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -ffreestanding -mcmodel=kernel -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -target-feature -sse2 -target-feature -sse -target-feature -3dnow -target-feature -mmx -target-feature +save-args -disable-red-zone -no-implicit-float -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -nostdsysteminc -nobuiltininc -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/sys -I /usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -I /usr/src/sys/arch -I /usr/src/sys/dev/pci/drm/include -I /usr/src/sys/dev/pci/drm/include/uapi -I /usr/src/sys/dev/pci/drm/amd/include/asic_reg -I /usr/src/sys/dev/pci/drm/amd/include -I /usr/src/sys/dev/pci/drm/amd/amdgpu -I /usr/src/sys/dev/pci/drm/amd/display -I /usr/src/sys/dev/pci/drm/amd/display/include -I /usr/src/sys/dev/pci/drm/amd/display/dc -I /usr/src/sys/dev/pci/drm/amd/display/amdgpu_dm -I /usr/src/sys/dev/pci/drm/amd/pm/inc -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu11 -I /usr/src/sys/dev/pci/drm/amd/pm/swsmu/smu12 -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/hwmgr -I /usr/src/sys/dev/pci/drm/amd/pm/powerplay/smumgr -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc -I /usr/src/sys/dev/pci/drm/amd/display/dc/inc/hw -I /usr/src/sys/dev/pci/drm/amd/display/dc/clk_mgr -I /usr/src/sys/dev/pci/drm/amd/display/modules/inc -I /usr/src/sys/dev/pci/drm/amd/display/modules/hdcp -I /usr/src/sys/dev/pci/drm/amd/display/dmub/inc -I /usr/src/sys/dev/pci/drm/i915 -D DDB -D DIAGNOSTIC -D KTRACE -D ACCOUNTING -D KMEMSTATS -D PTRACE -D POOL_DEBUG -D CRYPTO -D SYSVMSG -D SYSVSEM -D SYSVSHM -D UVM_SWAP_ENCRYPT -D FFS -D FFS2 -D FFS_SOFTUPDATES -D UFS_DIRHASH -D QUOTA -D EXT2FS -D MFS -D NFSCLIENT -D NFSSERVER -D CD9660 -D UDF -D MSDOSFS -D FIFO -D FUSE -D SOCKET_SPLICE -D TCP_ECN -D TCP_SIGNATURE -D INET6 -D IPSEC -D PPP_BSDCOMP -D PPP_DEFLATE -D PIPEX -D MROUTING -D MPLS -D BOOT_CONFIG -D USER_PCICONF -D APERTURE -D MTRR -D NTFS -D HIBERNATE -D PCIVERBOSE -D USBVERBOSE -D WSDISPLAY_COMPAT_USL -D WSDISPLAY_COMPAT_RAWKBD -D WSDISPLAY_DEFAULTSCREENS=6 -D X86EMU -D ONEWIREVERBOSE -D MULTIPROCESSOR -D MAXUSERS=80 -D _KERNEL -D CONFIG_DRM_AMD_DC_DCN3_0 -O2 -Wno-pointer-sign -Wno-address-of-packed-member -Wno-constant-conversion -Wno-unused-but-set-variable -Wno-gnu-folding-constant -fdebug-compilation-dir=/usr/src/sys/arch/amd64/compile/GENERIC.MP/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /usr/obj/sys/arch/amd64/compile/GENERIC.MP/scan-build/2022-01-12-131800-47421-1 -x c /usr/src/sys/dev/pci/drm/radeon/atom.c
1/*
2 * Copyright 2008 Advanced Micro Devices, Inc.
3 *
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:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
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.
21 *
22 * Author: Stanislaw Skowronek
23 */
24
25#include <linux/module.h>
26#include <linux/sched.h>
27#include <linux/slab.h>
28
29#include <asm/unaligned.h>
30
31#include <drm/drm_device.h>
32#include <drm/drm_util.h>
33
34#define ATOM_DEBUG
35
36#include "atom.h"
37#include "atom-names.h"
38#include "atom-bits.h"
39#include "radeon.h"
40
41#define ATOM_COND_ABOVE0 0
42#define ATOM_COND_ABOVEOREQUAL1 1
43#define ATOM_COND_ALWAYS2 2
44#define ATOM_COND_BELOW3 3
45#define ATOM_COND_BELOWOREQUAL4 4
46#define ATOM_COND_EQUAL5 5
47#define ATOM_COND_NOTEQUAL6 6
48
49#define ATOM_PORT_ATI0 0
50#define ATOM_PORT_PCI1 1
51#define ATOM_PORT_SYSIO2 2
52
53#define ATOM_UNIT_MICROSEC0 0
54#define ATOM_UNIT_MILLISEC1 1
55
56#define PLL_INDEX2 2
57#define PLL_DATA3 3
58
59typedef struct {
60 struct atom_context *ctx;
61 uint32_t *ps, *ws;
62 int ps_shift;
63 uint16_t start;
64 unsigned last_jump;
65 unsigned long last_jump_jiffies;
66 bool_Bool abort;
67} atom_exec_context;
68
69int atom_debug = 0;
70static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params);
71int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params);
72
73static uint32_t atom_arg_mask[8] = {
74 0xFFFFFFFF, 0x0000FFFF, 0x00FFFF00, 0xFFFF0000,
75 0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
76};
77static int atom_arg_shift[8] = { 0, 0, 8, 16, 0, 8, 16, 24 };
78
79static int atom_dst_to_src[8][4] = {
80 /* translate destination alignment field to the source alignment encoding */
81 {0, 0, 0, 0},
82 {1, 2, 3, 0},
83 {1, 2, 3, 0},
84 {1, 2, 3, 0},
85 {4, 5, 6, 7},
86 {4, 5, 6, 7},
87 {4, 5, 6, 7},
88 {4, 5, 6, 7},
89};
90static int atom_def_dst[8] = { 0, 0, 1, 2, 0, 1, 2, 3 };
91
92static int debug_depth = 0;
93#ifdef ATOM_DEBUG
94static void debug_print_spaces(int n)
95{
96 while (n--)
97 printk(" ");
98}
99
100#ifdef DEBUG
101#undef DEBUG
102#endif
103
104#define DEBUG(...)do if (atom_debug) { printk("\0017" ...); } while (0) do if (atom_debug) { printk(KERN_DEBUG"\0017" __VA_ARGS__); } while (0)
105#define SDEBUG(...)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(...); } while (0) do if (atom_debug) { printk(KERN_DEBUG"\0017"); debug_print_spaces(debug_depth); printk(__VA_ARGS__); } while (0)
106#else
107#define DEBUG(...)do if (atom_debug) { printk("\0017" ...); } while (0) do { } while (0)
108#define SDEBUG(...)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(...); } while (0) do { } while (0)
109#endif
110
111static uint32_t atom_iio_execute(struct atom_context *ctx, int base,
112 uint32_t index, uint32_t data)
113{
114 struct radeon_device *rdev = ctx->card->dev->dev_private;
115 uint32_t temp = 0xCDCDCDCD;
116
117 while (1)
118 switch (CU8(base)get_u8(ctx->bios, (base))) {
119 case ATOM_IIO_NOP0:
120 base++;
121 break;
122 case ATOM_IIO_READ2:
123 temp = ctx->card->ioreg_read(ctx->card, CU16(base + 1)get_u16(ctx->bios, (base + 1)));
124 base += 3;
125 break;
126 case ATOM_IIO_WRITE3:
127 if (rdev->family == CHIP_RV515)
128 (void)ctx->card->ioreg_read(ctx->card, CU16(base + 1)get_u16(ctx->bios, (base + 1)));
129 ctx->card->ioreg_write(ctx->card, CU16(base + 1)get_u16(ctx->bios, (base + 1)), temp);
130 base += 3;
131 break;
132 case ATOM_IIO_CLEAR4:
133 temp &=
134 ~((0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1)))) <<
135 CU8(base + 2)get_u8(ctx->bios, (base + 2)));
136 base += 3;
137 break;
138 case ATOM_IIO_SET5:
139 temp |=
140 (0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1)))) << CU8(base +get_u8(ctx->bios, (base + 2))
141 2)get_u8(ctx->bios, (base + 2));
142 base += 3;
143 break;
144 case ATOM_IIO_MOVE_INDEX6:
145 temp &=
146 ~((0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1)))) <<
147 CU8(base + 3)get_u8(ctx->bios, (base + 3)));
148 temp |=
149 ((index >> CU8(base + 2)get_u8(ctx->bios, (base + 2))) &
150 (0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1))))) << CU8(base +get_u8(ctx->bios, (base + 3))
151 3)get_u8(ctx->bios, (base + 3));
152 base += 4;
153 break;
154 case ATOM_IIO_MOVE_DATA8:
155 temp &=
156 ~((0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1)))) <<
157 CU8(base + 3)get_u8(ctx->bios, (base + 3)));
158 temp |=
159 ((data >> CU8(base + 2)get_u8(ctx->bios, (base + 2))) &
160 (0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1))))) << CU8(base +get_u8(ctx->bios, (base + 3))
161 3)get_u8(ctx->bios, (base + 3));
162 base += 4;
163 break;
164 case ATOM_IIO_MOVE_ATTR7:
165 temp &=
166 ~((0xFFFFFFFF >> (32 - CU8(base + 1)get_u8(ctx->bios, (base + 1)))) <<
167 CU8(base + 3)get_u8(ctx->bios, (base + 3)));
168 temp |=
169 ((ctx->
170 io_attr >> CU8(base + 2)get_u8(ctx->bios, (base + 2))) & (0xFFFFFFFF >> (32 -
171 CU8get_u8(ctx->bios, (base + 1))
172 (baseget_u8(ctx->bios, (base + 1))
173 +get_u8(ctx->bios, (base + 1))
174 1)get_u8(ctx->bios, (base + 1)))))
175 << CU8(base + 3)get_u8(ctx->bios, (base + 3));
176 base += 4;
177 break;
178 case ATOM_IIO_END9:
179 return temp;
180 default:
181 pr_info("Unknown IIO opcode\n")do { } while(0);
182 return 0;
183 }
184}
185
186static uint32_t atom_get_src_int(atom_exec_context *ctx, uint8_t attr,
187 int *ptr, uint32_t *saved, int print)
188{
189 uint32_t idx, val = 0xCDCDCDCD, align, arg;
190 struct atom_context *gctx = ctx->ctx;
191 arg = attr & 7;
192 align = (attr >> 3) & 7;
193 switch (arg) {
194 case ATOM_ARG_REG0:
195 idx = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
196 (*ptr) += 2;
197 if (print)
198 DEBUG("REG[0x%04X]", idx)do if (atom_debug) { printk("\0017" "REG[0x%04X]", idx); } while
(0);
199 idx += gctx->reg_block;
200 switch (gctx->io_mode) {
201 case ATOM_IO_MM0:
202 val = gctx->card->reg_read(gctx->card, idx);
203 break;
204 case ATOM_IO_PCI1:
205 pr_info("PCI registers are not implemented\n")do { } while(0);
206 return 0;
207 case ATOM_IO_SYSIO2:
208 pr_info("SYSIO registers are not implemented\n")do { } while(0);
209 return 0;
210 default:
211 if (!(gctx->io_mode & 0x80)) {
212 pr_info("Bad IO mode\n")do { } while(0);
213 return 0;
214 }
215 if (!gctx->iio[gctx->io_mode & 0x7F]) {
216 pr_info("Undefined indirect IO read method %d\n",do { } while(0)
217 gctx->io_mode & 0x7F)do { } while(0);
218 return 0;
219 }
220 val =
221 atom_iio_execute(gctx,
222 gctx->iio[gctx->io_mode & 0x7F],
223 idx, 0);
224 }
225 break;
226 case ATOM_ARG_PS1:
227 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
228 (*ptr)++;
229 /* get_unaligned_le32 avoids unaligned accesses from atombios
230 * tables, noticed on a DEC Alpha. */
231 val = get_unaligned_le32((u32 *)&ctx->ps[idx])((__uint32_t)(*(__uint32_t *)((u32 *)&ctx->ps[idx])));
232 if (print)
233 DEBUG("PS[0x%02X,0x%04X]", idx, val)do if (atom_debug) { printk("\0017" "PS[0x%02X,0x%04X]", idx,
val); } while (0);
234 break;
235 case ATOM_ARG_WS2:
236 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
237 (*ptr)++;
238 if (print)
239 DEBUG("WS[0x%02X]", idx)do if (atom_debug) { printk("\0017" "WS[0x%02X]", idx); } while
(0);
240 switch (idx) {
241 case ATOM_WS_QUOTIENT0x40:
242 val = gctx->divmul[0];
243 break;
244 case ATOM_WS_REMAINDER0x41:
245 val = gctx->divmul[1];
246 break;
247 case ATOM_WS_DATAPTR0x42:
248 val = gctx->data_block;
249 break;
250 case ATOM_WS_SHIFT0x43:
251 val = gctx->shift;
252 break;
253 case ATOM_WS_OR_MASK0x44:
254 val = 1 << gctx->shift;
255 break;
256 case ATOM_WS_AND_MASK0x45:
257 val = ~(1 << gctx->shift);
258 break;
259 case ATOM_WS_FB_WINDOW0x46:
260 val = gctx->fb_base;
261 break;
262 case ATOM_WS_ATTRIBUTES0x47:
263 val = gctx->io_attr;
264 break;
265 case ATOM_WS_REGPTR0x48:
266 val = gctx->reg_block;
267 break;
268 default:
269 val = ctx->ws[idx];
270 }
271 break;
272 case ATOM_ARG_ID4:
273 idx = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
274 (*ptr) += 2;
275 if (print) {
276 if (gctx->data_block)
277 DEBUG("ID[0x%04X+%04X]", idx, gctx->data_block)do if (atom_debug) { printk("\0017" "ID[0x%04X+%04X]", idx, gctx
->data_block); } while (0);
278 else
279 DEBUG("ID[0x%04X]", idx)do if (atom_debug) { printk("\0017" "ID[0x%04X]", idx); } while
(0);
280 }
281 val = U32(idx + gctx->data_block)get_u32(ctx->ctx->bios, (idx + gctx->data_block));
282 break;
283 case ATOM_ARG_FB3:
284 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
285 (*ptr)++;
286 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
287 DRM_ERROR("ATOM: fb read beyond scratch region: %d vs. %d\n",__drm_err("ATOM: fb read beyond scratch region: %d vs. %d\n",
gctx->fb_base + (idx * 4), gctx->scratch_size_bytes)
288 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes)__drm_err("ATOM: fb read beyond scratch region: %d vs. %d\n",
gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
289 val = 0;
290 } else
291 val = gctx->scratch[(gctx->fb_base / 4) + idx];
292 if (print)
293 DEBUG("FB[0x%02X]", idx)do if (atom_debug) { printk("\0017" "FB[0x%02X]", idx); } while
(0);
294 break;
295 case ATOM_ARG_IMM5:
296 switch (align) {
297 case ATOM_SRC_DWORD0:
298 val = U32(*ptr)get_u32(ctx->ctx->bios, (*ptr));
299 (*ptr) += 4;
300 if (print)
301 DEBUG("IMM 0x%08X\n", val)do if (atom_debug) { printk("\0017" "IMM 0x%08X\n", val); } while
(0);
302 return val;
303 case ATOM_SRC_WORD01:
304 case ATOM_SRC_WORD82:
305 case ATOM_SRC_WORD163:
306 val = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
307 (*ptr) += 2;
308 if (print)
309 DEBUG("IMM 0x%04X\n", val)do if (atom_debug) { printk("\0017" "IMM 0x%04X\n", val); } while
(0);
310 return val;
311 case ATOM_SRC_BYTE04:
312 case ATOM_SRC_BYTE85:
313 case ATOM_SRC_BYTE166:
314 case ATOM_SRC_BYTE247:
315 val = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
316 (*ptr)++;
317 if (print)
318 DEBUG("IMM 0x%02X\n", val)do if (atom_debug) { printk("\0017" "IMM 0x%02X\n", val); } while
(0);
319 return val;
320 }
321 return 0;
322 case ATOM_ARG_PLL6:
323 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
324 (*ptr)++;
325 if (print)
326 DEBUG("PLL[0x%02X]", idx)do if (atom_debug) { printk("\0017" "PLL[0x%02X]", idx); } while
(0);
327 val = gctx->card->pll_read(gctx->card, idx);
328 break;
329 case ATOM_ARG_MC7:
330 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
331 (*ptr)++;
332 if (print)
333 DEBUG("MC[0x%02X]", idx)do if (atom_debug) { printk("\0017" "MC[0x%02X]", idx); } while
(0);
334 val = gctx->card->mc_read(gctx->card, idx);
335 break;
336 }
337 if (saved)
338 *saved = val;
339 val &= atom_arg_mask[align];
340 val >>= atom_arg_shift[align];
341 if (print)
342 switch (align) {
343 case ATOM_SRC_DWORD0:
344 DEBUG(".[31:0] -> 0x%08X\n", val)do if (atom_debug) { printk("\0017" ".[31:0] -> 0x%08X\n",
val); } while (0);
345 break;
346 case ATOM_SRC_WORD01:
347 DEBUG(".[15:0] -> 0x%04X\n", val)do if (atom_debug) { printk("\0017" ".[15:0] -> 0x%04X\n",
val); } while (0);
348 break;
349 case ATOM_SRC_WORD82:
350 DEBUG(".[23:8] -> 0x%04X\n", val)do if (atom_debug) { printk("\0017" ".[23:8] -> 0x%04X\n",
val); } while (0);
351 break;
352 case ATOM_SRC_WORD163:
353 DEBUG(".[31:16] -> 0x%04X\n", val)do if (atom_debug) { printk("\0017" ".[31:16] -> 0x%04X\n"
, val); } while (0);
354 break;
355 case ATOM_SRC_BYTE04:
356 DEBUG(".[7:0] -> 0x%02X\n", val)do if (atom_debug) { printk("\0017" ".[7:0] -> 0x%02X\n", val
); } while (0);
357 break;
358 case ATOM_SRC_BYTE85:
359 DEBUG(".[15:8] -> 0x%02X\n", val)do if (atom_debug) { printk("\0017" ".[15:8] -> 0x%02X\n",
val); } while (0);
360 break;
361 case ATOM_SRC_BYTE166:
362 DEBUG(".[23:16] -> 0x%02X\n", val)do if (atom_debug) { printk("\0017" ".[23:16] -> 0x%02X\n"
, val); } while (0);
363 break;
364 case ATOM_SRC_BYTE247:
365 DEBUG(".[31:24] -> 0x%02X\n", val)do if (atom_debug) { printk("\0017" ".[31:24] -> 0x%02X\n"
, val); } while (0);
366 break;
367 }
368 return val;
369}
370
371static void atom_skip_src_int(atom_exec_context *ctx, uint8_t attr, int *ptr)
372{
373 uint32_t align = (attr >> 3) & 7, arg = attr & 7;
374 switch (arg) {
375 case ATOM_ARG_REG0:
376 case ATOM_ARG_ID4:
377 (*ptr) += 2;
378 break;
379 case ATOM_ARG_PLL6:
380 case ATOM_ARG_MC7:
381 case ATOM_ARG_PS1:
382 case ATOM_ARG_WS2:
383 case ATOM_ARG_FB3:
384 (*ptr)++;
385 break;
386 case ATOM_ARG_IMM5:
387 switch (align) {
388 case ATOM_SRC_DWORD0:
389 (*ptr) += 4;
390 return;
391 case ATOM_SRC_WORD01:
392 case ATOM_SRC_WORD82:
393 case ATOM_SRC_WORD163:
394 (*ptr) += 2;
395 return;
396 case ATOM_SRC_BYTE04:
397 case ATOM_SRC_BYTE85:
398 case ATOM_SRC_BYTE166:
399 case ATOM_SRC_BYTE247:
400 (*ptr)++;
401 return;
402 }
403 return;
404 }
405}
406
407static uint32_t atom_get_src(atom_exec_context *ctx, uint8_t attr, int *ptr)
408{
409 return atom_get_src_int(ctx, attr, ptr, NULL((void *)0), 1);
410}
411
412static uint32_t atom_get_src_direct(atom_exec_context *ctx, uint8_t align, int *ptr)
413{
414 uint32_t val = 0xCDCDCDCD;
415
416 switch (align) {
417 case ATOM_SRC_DWORD0:
418 val = U32(*ptr)get_u32(ctx->ctx->bios, (*ptr));
419 (*ptr) += 4;
420 break;
421 case ATOM_SRC_WORD01:
422 case ATOM_SRC_WORD82:
423 case ATOM_SRC_WORD163:
424 val = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
425 (*ptr) += 2;
426 break;
427 case ATOM_SRC_BYTE04:
428 case ATOM_SRC_BYTE85:
429 case ATOM_SRC_BYTE166:
430 case ATOM_SRC_BYTE247:
431 val = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
432 (*ptr)++;
433 break;
434 }
435 return val;
436}
437
438static uint32_t atom_get_dst(atom_exec_context *ctx, int arg, uint8_t attr,
439 int *ptr, uint32_t *saved, int print)
440{
441 return atom_get_src_int(ctx,
442 arg | atom_dst_to_src[(attr >> 3) &
443 7][(attr >> 6) & 3] << 3,
444 ptr, saved, print);
445}
446
447static void atom_skip_dst(atom_exec_context *ctx, int arg, uint8_t attr, int *ptr)
448{
449 atom_skip_src_int(ctx,
450 arg | atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) &
451 3] << 3, ptr);
452}
453
454static void atom_put_dst(atom_exec_context *ctx, int arg, uint8_t attr,
455 int *ptr, uint32_t val, uint32_t saved)
456{
457 uint32_t align =
458 atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3], old_val =
459 val, idx;
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];
465 val |= saved;
466 switch (arg) {
467 case ATOM_ARG_REG0:
468 idx = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
469 (*ptr) += 2;
470 DEBUG("REG[0x%04X]", idx)do if (atom_debug) { printk("\0017" "REG[0x%04X]", idx); } while
(0);
471 idx += gctx->reg_block;
472 switch (gctx->io_mode) {
473 case ATOM_IO_MM0:
474 if (idx == 0)
475 gctx->card->reg_write(gctx->card, idx,
476 val << 2);
477 else
478 gctx->card->reg_write(gctx->card, idx, val);
479 break;
480 case ATOM_IO_PCI1:
481 pr_info("PCI registers are not implemented\n")do { } while(0);
482 return;
483 case ATOM_IO_SYSIO2:
484 pr_info("SYSIO registers are not implemented\n")do { } while(0);
485 return;
486 default:
487 if (!(gctx->io_mode & 0x80)) {
488 pr_info("Bad IO mode\n")do { } while(0);
489 return;
490 }
491 if (!gctx->iio[gctx->io_mode & 0xFF]) {
492 pr_info("Undefined indirect IO write method %d\n",do { } while(0)
493 gctx->io_mode & 0x7F)do { } while(0);
494 return;
495 }
496 atom_iio_execute(gctx, gctx->iio[gctx->io_mode & 0xFF],
497 idx, val);
498 }
499 break;
500 case ATOM_ARG_PS1:
501 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
502 (*ptr)++;
503 DEBUG("PS[0x%02X]", idx)do if (atom_debug) { printk("\0017" "PS[0x%02X]", idx); } while
(0);
504 ctx->ps[idx] = cpu_to_le32(val)((__uint32_t)(val));
505 break;
506 case ATOM_ARG_WS2:
507 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
508 (*ptr)++;
509 DEBUG("WS[0x%02X]", idx)do if (atom_debug) { printk("\0017" "WS[0x%02X]", idx); } while
(0);
510 switch (idx) {
511 case ATOM_WS_QUOTIENT0x40:
512 gctx->divmul[0] = val;
513 break;
514 case ATOM_WS_REMAINDER0x41:
515 gctx->divmul[1] = val;
516 break;
517 case ATOM_WS_DATAPTR0x42:
518 gctx->data_block = val;
519 break;
520 case ATOM_WS_SHIFT0x43:
521 gctx->shift = val;
522 break;
523 case ATOM_WS_OR_MASK0x44:
524 case ATOM_WS_AND_MASK0x45:
525 break;
526 case ATOM_WS_FB_WINDOW0x46:
527 gctx->fb_base = val;
528 break;
529 case ATOM_WS_ATTRIBUTES0x47:
530 gctx->io_attr = val;
531 break;
532 case ATOM_WS_REGPTR0x48:
533 gctx->reg_block = val;
534 break;
535 default:
536 ctx->ws[idx] = val;
537 }
538 break;
539 case ATOM_ARG_FB3:
540 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
541 (*ptr)++;
542 if ((gctx->fb_base + (idx * 4)) > gctx->scratch_size_bytes) {
543 DRM_ERROR("ATOM: fb write beyond scratch region: %d vs. %d\n",__drm_err("ATOM: fb write beyond scratch region: %d vs. %d\n"
, gctx->fb_base + (idx * 4), gctx->scratch_size_bytes)
544 gctx->fb_base + (idx * 4), gctx->scratch_size_bytes)__drm_err("ATOM: fb write beyond scratch region: %d vs. %d\n"
, gctx->fb_base + (idx * 4), gctx->scratch_size_bytes);
545 } else
546 gctx->scratch[(gctx->fb_base / 4) + idx] = val;
547 DEBUG("FB[0x%02X]", idx)do if (atom_debug) { printk("\0017" "FB[0x%02X]", idx); } while
(0);
548 break;
549 case ATOM_ARG_PLL6:
550 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
551 (*ptr)++;
552 DEBUG("PLL[0x%02X]", idx)do if (atom_debug) { printk("\0017" "PLL[0x%02X]", idx); } while
(0);
553 gctx->card->pll_write(gctx->card, idx, val);
554 break;
555 case ATOM_ARG_MC7:
556 idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
557 (*ptr)++;
558 DEBUG("MC[0x%02X]", idx)do if (atom_debug) { printk("\0017" "MC[0x%02X]", idx); } while
(0);
559 gctx->card->mc_write(gctx->card, idx, val);
560 return;
561 }
562 switch (align) {
563 case ATOM_SRC_DWORD0:
564 DEBUG(".[31:0] <- 0x%08X\n", old_val)do if (atom_debug) { printk("\0017" ".[31:0] <- 0x%08X\n",
old_val); } while (0);
565 break;
566 case ATOM_SRC_WORD01:
567 DEBUG(".[15:0] <- 0x%04X\n", old_val)do if (atom_debug) { printk("\0017" ".[15:0] <- 0x%04X\n",
old_val); } while (0);
568 break;
569 case ATOM_SRC_WORD82:
570 DEBUG(".[23:8] <- 0x%04X\n", old_val)do if (atom_debug) { printk("\0017" ".[23:8] <- 0x%04X\n",
old_val); } while (0);
571 break;
572 case ATOM_SRC_WORD163:
573 DEBUG(".[31:16] <- 0x%04X\n", old_val)do if (atom_debug) { printk("\0017" ".[31:16] <- 0x%04X\n"
, old_val); } while (0);
574 break;
575 case ATOM_SRC_BYTE04:
576 DEBUG(".[7:0] <- 0x%02X\n", old_val)do if (atom_debug) { printk("\0017" ".[7:0] <- 0x%02X\n", old_val
); } while (0);
577 break;
578 case ATOM_SRC_BYTE85:
579 DEBUG(".[15:8] <- 0x%02X\n", old_val)do if (atom_debug) { printk("\0017" ".[15:8] <- 0x%02X\n",
old_val); } while (0);
580 break;
581 case ATOM_SRC_BYTE166:
582 DEBUG(".[23:16] <- 0x%02X\n", old_val)do if (atom_debug) { printk("\0017" ".[23:16] <- 0x%02X\n"
, old_val); } while (0);
583 break;
584 case ATOM_SRC_BYTE247:
585 DEBUG(".[31:24] <- 0x%02X\n", old_val)do if (atom_debug) { printk("\0017" ".[31:24] <- 0x%02X\n"
, old_val); } while (0);
586 break;
587 }
588}
589
590static void atom_op_add(atom_exec_context *ctx, int *ptr, int arg)
591{
592 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
593 uint32_t dst, src, saved;
594 int dptr = *ptr;
595 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
596 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
597 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
598 src = atom_get_src(ctx, attr, ptr);
599 dst += src;
600 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
601 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
602}
603
604static void atom_op_and(atom_exec_context *ctx, int *ptr, int arg)
605{
606 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
607 uint32_t dst, src, saved;
608 int dptr = *ptr;
609 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
610 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
611 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
612 src = atom_get_src(ctx, attr, ptr);
613 dst &= src;
614 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
615 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
616}
617
618static void atom_op_beep(atom_exec_context *ctx, int *ptr, int arg)
619{
620 printk("ATOM BIOS beeped!\n");
621}
622
623static void atom_op_calltable(atom_exec_context *ctx, int *ptr, int arg)
624{
625 int idx = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
626 int r = 0;
627
628 if (idx < ATOM_TABLE_NAMES_CNT74)
629 SDEBUG(" table: %d (%s)\n", idx, atom_table_names[idx])do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" table: %d (%s)\n", idx, atom_table_names[idx]);
} while (0);
630 else
631 SDEBUG(" table: %d\n", idx)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" table: %d\n", idx); } while (0);
632 if (U16(ctx->ctx->cmd_table + 4 + 2 * idx)get_u16(ctx->ctx->bios, (ctx->ctx->cmd_table + 4 +
2 * idx)))
633 r = atom_execute_table_locked(ctx->ctx, idx, ctx->ps + ctx->ps_shift);
634 if (r) {
635 ctx->abort = true1;
636 }
637}
638
639static void atom_op_clear(atom_exec_context *ctx, int *ptr, int arg)
640{
641 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
642 uint32_t saved;
643 int dptr = *ptr;
644 attr &= 0x38;
645 attr |= atom_def_dst[attr >> 3] << 6;
646 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
647 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
648 atom_put_dst(ctx, arg, attr, &dptr, 0, saved);
649}
650
651static void atom_op_compare(atom_exec_context *ctx, int *ptr, int arg)
652{
653 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
654 uint32_t dst, src;
655 SDEBUG(" src1: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src1: "); } while (0);
656 dst = atom_get_dst(ctx, arg, attr, ptr, NULL((void *)0), 1);
657 SDEBUG(" src2: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src2: "); } while (0);
658 src = atom_get_src(ctx, attr, ptr);
659 ctx->ctx->cs_equal = (dst == src);
660 ctx->ctx->cs_above = (dst > src);
661 SDEBUG(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ" : "NE",do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ"
: "NE", ctx->ctx->cs_above ? "GT" : "LE"); } while (0)
662 ctx->ctx->cs_above ? "GT" : "LE")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" result: %s %s\n", ctx->ctx->cs_equal ? "EQ"
: "NE", ctx->ctx->cs_above ? "GT" : "LE"); } while (0);
663}
664
665static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
666{
667 unsigned count = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
668 SDEBUG(" count: %d\n", count)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" count: %d\n", count); } while (0);
669 if (arg == ATOM_UNIT_MICROSEC0)
670 udelay(count);
671 else if (!drm_can_sleep())
672 mdelay(count);
673 else
674 drm_msleep(count)mdelay(count);
675}
676
677static void atom_op_div(atom_exec_context *ctx, int *ptr, int arg)
678{
679 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
680 uint32_t dst, src;
681 SDEBUG(" src1: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src1: "); } while (0);
682 dst = atom_get_dst(ctx, arg, attr, ptr, NULL((void *)0), 1);
683 SDEBUG(" src2: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src2: "); } while (0);
684 src = atom_get_src(ctx, attr, ptr);
685 if (src != 0) {
686 ctx->ctx->divmul[0] = dst / src;
687 ctx->ctx->divmul[1] = dst % src;
688 } else {
689 ctx->ctx->divmul[0] = 0;
690 ctx->ctx->divmul[1] = 0;
691 }
692}
693
694static void atom_op_eot(atom_exec_context *ctx, int *ptr, int arg)
695{
696 /* functionally, a nop */
697}
698
699static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
700{
701 int execute = 0, target = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
702 unsigned long cjiffies;
703
704 (*ptr) += 2;
705 switch (arg) {
706 case ATOM_COND_ABOVE0:
707 execute = ctx->ctx->cs_above;
708 break;
709 case ATOM_COND_ABOVEOREQUAL1:
710 execute = ctx->ctx->cs_above || ctx->ctx->cs_equal;
711 break;
712 case ATOM_COND_ALWAYS2:
713 execute = 1;
714 break;
715 case ATOM_COND_BELOW3:
716 execute = !(ctx->ctx->cs_above || ctx->ctx->cs_equal);
717 break;
718 case ATOM_COND_BELOWOREQUAL4:
719 execute = !ctx->ctx->cs_above;
720 break;
721 case ATOM_COND_EQUAL5:
722 execute = ctx->ctx->cs_equal;
723 break;
724 case ATOM_COND_NOTEQUAL6:
725 execute = !ctx->ctx->cs_equal;
726 break;
727 }
728 if (arg != ATOM_COND_ALWAYS2)
729 SDEBUG(" taken: %s\n", execute ? "yes" : "no")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" taken: %s\n", execute ? "yes" : "no"); } while (
0);
730 SDEBUG(" target: 0x%04X\n", target)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" target: 0x%04X\n", target); } while (0);
731 if (execute) {
732 if (ctx->last_jump == (ctx->start + target)) {
733 cjiffies = jiffies;
734 if (time_after(cjiffies, ctx->last_jump_jiffies)((long)(ctx->last_jump_jiffies) - (long)(cjiffies) < 0)) {
735 cjiffies -= ctx->last_jump_jiffies;
736 if ((jiffies_to_msecs(cjiffies) > 5000)) {
737 DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n")__drm_err("atombios stuck in loop for more than 5secs aborting\n"
);
738 ctx->abort = true1;
739 }
740 } else {
741 /* jiffies wrap around we will just wait a little longer */
742 ctx->last_jump_jiffies = jiffies;
743 }
744 } else {
745 ctx->last_jump = ctx->start + target;
746 ctx->last_jump_jiffies = jiffies;
747 }
748 *ptr = ctx->start + target;
749 }
750}
751
752static void atom_op_mask(atom_exec_context *ctx, int *ptr, int arg)
753{
754 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
755 uint32_t dst, mask, src, saved;
756 int dptr = *ptr;
757 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
758 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
759 mask = atom_get_src_direct(ctx, ((attr >> 3) & 7), ptr);
760 SDEBUG(" mask: 0x%08x", mask)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" mask: 0x%08x", mask); } while (0);
761 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
762 src = atom_get_src(ctx, attr, ptr);
763 dst &= mask;
764 dst |= src;
765 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
766 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
767}
768
769static void atom_op_move(atom_exec_context *ctx, int *ptr, int arg)
770{
771 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
772 uint32_t src, saved;
773 int dptr = *ptr;
774 if (((attr >> 3) & 7) != ATOM_SRC_DWORD0)
775 atom_get_dst(ctx, arg, attr, ptr, &saved, 0);
776 else {
777 atom_skip_dst(ctx, arg, attr, ptr);
778 saved = 0xCDCDCDCD;
779 }
780 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
781 src = atom_get_src(ctx, attr, ptr);
782 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
783 atom_put_dst(ctx, arg, attr, &dptr, src, saved);
784}
785
786static void atom_op_mul(atom_exec_context *ctx, int *ptr, int arg)
787{
788 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
789 uint32_t dst, src;
790 SDEBUG(" src1: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src1: "); } while (0);
791 dst = atom_get_dst(ctx, arg, attr, ptr, NULL((void *)0), 1);
792 SDEBUG(" src2: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src2: "); } while (0);
793 src = atom_get_src(ctx, attr, ptr);
794 ctx->ctx->divmul[0] = dst * src;
795}
796
797static void atom_op_nop(atom_exec_context *ctx, int *ptr, int arg)
798{
799 /* nothing */
800}
801
802static void atom_op_or(atom_exec_context *ctx, int *ptr, int arg)
803{
804 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
805 uint32_t dst, src, saved;
806 int dptr = *ptr;
807 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
808 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
809 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
810 src = atom_get_src(ctx, attr, ptr);
811 dst |= src;
812 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
813 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
814}
815
816static void atom_op_postcard(atom_exec_context *ctx, int *ptr, int arg)
817{
818 uint8_t val = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
819 SDEBUG("POST card output: 0x%02X\n", val)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk("POST card output: 0x%02X\n", val); } while (0);
820}
821
822static void atom_op_repeat(atom_exec_context *ctx, int *ptr, int arg)
823{
824 pr_info("unimplemented!\n")do { } while(0);
825}
826
827static void atom_op_restorereg(atom_exec_context *ctx, int *ptr, int arg)
828{
829 pr_info("unimplemented!\n")do { } while(0);
830}
831
832static void atom_op_savereg(atom_exec_context *ctx, int *ptr, int arg)
833{
834 pr_info("unimplemented!\n")do { } while(0);
835}
836
837static void atom_op_setdatablock(atom_exec_context *ctx, int *ptr, int arg)
838{
839 int idx = U8(*ptr)get_u8(ctx->ctx->bios, (*ptr));
840 (*ptr)++;
841 SDEBUG(" block: %d\n", idx)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" block: %d\n", idx); } while (0);
842 if (!idx)
843 ctx->ctx->data_block = 0;
844 else if (idx == 255)
845 ctx->ctx->data_block = ctx->start;
846 else
847 ctx->ctx->data_block = U16(ctx->ctx->data_table + 4 + 2 * idx)get_u16(ctx->ctx->bios, (ctx->ctx->data_table + 4
+ 2 * idx));
848 SDEBUG(" base: 0x%04X\n", ctx->ctx->data_block)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" base: 0x%04X\n", ctx->ctx->data_block); }
while (0);
849}
850
851static void atom_op_setfbbase(atom_exec_context *ctx, int *ptr, int arg)
852{
853 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
854 SDEBUG(" fb_base: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" fb_base: "); } while (0);
855 ctx->ctx->fb_base = atom_get_src(ctx, attr, ptr);
856}
857
858static void atom_op_setport(atom_exec_context *ctx, int *ptr, int arg)
859{
860 int port;
861 switch (arg) {
862 case ATOM_PORT_ATI0:
863 port = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
864 if (port < ATOM_IO_NAMES_CNT5)
865 SDEBUG(" port: %d (%s)\n", port, atom_io_names[port])do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" port: %d (%s)\n", port, atom_io_names[port]); }
while (0);
866 else
867 SDEBUG(" port: %d\n", port)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" port: %d\n", port); } while (0);
868 if (!port)
869 ctx->ctx->io_mode = ATOM_IO_MM0;
870 else
871 ctx->ctx->io_mode = ATOM_IO_IIO0x80 | port;
872 (*ptr) += 2;
873 break;
874 case ATOM_PORT_PCI1:
875 ctx->ctx->io_mode = ATOM_IO_PCI1;
876 (*ptr)++;
877 break;
878 case ATOM_PORT_SYSIO2:
879 ctx->ctx->io_mode = ATOM_IO_SYSIO2;
880 (*ptr)++;
881 break;
882 }
883}
884
885static void atom_op_setregblock(atom_exec_context *ctx, int *ptr, int arg)
886{
887 ctx->ctx->reg_block = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
888 (*ptr) += 2;
889 SDEBUG(" base: 0x%04X\n", ctx->ctx->reg_block)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" base: 0x%04X\n", ctx->ctx->reg_block); } while
(0);
890}
891
892static void atom_op_shift_left(atom_exec_context *ctx, int *ptr, int arg)
893{
894 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++)), shift;
895 uint32_t saved, dst;
896 int dptr = *ptr;
897 attr &= 0x38;
898 attr |= atom_def_dst[attr >> 3] << 6;
899 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
900 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
901 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE04, ptr);
902 SDEBUG(" shift: %d\n", shift)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" shift: %d\n", shift); } while (0);
903 dst <<= shift;
904 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
905 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
906}
907
908static void atom_op_shift_right(atom_exec_context *ctx, int *ptr, int arg)
909{
910 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++)), shift;
911 uint32_t saved, dst;
912 int dptr = *ptr;
913 attr &= 0x38;
914 attr |= atom_def_dst[attr >> 3] << 6;
915 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
916 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
917 shift = atom_get_src_direct(ctx, ATOM_SRC_BYTE04, ptr);
918 SDEBUG(" shift: %d\n", shift)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" shift: %d\n", shift); } while (0);
919 dst >>= shift;
920 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
921 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
922}
923
924static void atom_op_shl(atom_exec_context *ctx, int *ptr, int arg)
925{
926 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++)), shift;
927 uint32_t saved, dst;
928 int dptr = *ptr;
929 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
930 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
931 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
Value stored to 'dst' is never read
932 /* op needs to full dst value */
933 dst = saved;
934 shift = atom_get_src(ctx, attr, ptr);
935 SDEBUG(" shift: %d\n", shift)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" shift: %d\n", shift); } while (0);
936 dst <<= shift;
937 dst &= atom_arg_mask[dst_align];
938 dst >>= atom_arg_shift[dst_align];
939 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
940 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
941}
942
943static void atom_op_shr(atom_exec_context *ctx, int *ptr, int arg)
944{
945 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++)), shift;
946 uint32_t saved, dst;
947 int dptr = *ptr;
948 uint32_t dst_align = atom_dst_to_src[(attr >> 3) & 7][(attr >> 6) & 3];
949 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
950 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
951 /* op needs to full dst value */
952 dst = saved;
953 shift = atom_get_src(ctx, attr, ptr);
954 SDEBUG(" shift: %d\n", shift)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" shift: %d\n", shift); } while (0);
955 dst >>= shift;
956 dst &= atom_arg_mask[dst_align];
957 dst >>= atom_arg_shift[dst_align];
958 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
959 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
960}
961
962static void atom_op_sub(atom_exec_context *ctx, int *ptr, int arg)
963{
964 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
965 uint32_t dst, src, saved;
966 int dptr = *ptr;
967 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
968 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
969 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
970 src = atom_get_src(ctx, attr, ptr);
971 dst -= src;
972 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
973 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
974}
975
976static void atom_op_switch(atom_exec_context *ctx, int *ptr, int arg)
977{
978 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
979 uint32_t src, val, target;
980 SDEBUG(" switch: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" switch: "); } while (0);
981 src = atom_get_src(ctx, attr, ptr);
982 while (U16(*ptr)get_u16(ctx->ctx->bios, (*ptr)) != ATOM_CASE_END0x5A5A)
983 if (U8(*ptr)get_u8(ctx->ctx->bios, (*ptr)) == ATOM_CASE_MAGIC0x63) {
984 (*ptr)++;
985 SDEBUG(" case: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" case: "); } while (0);
986 val =
987 atom_get_src(ctx, (attr & 0x38) | ATOM_ARG_IMM5,
988 ptr);
989 target = U16(*ptr)get_u16(ctx->ctx->bios, (*ptr));
990 if (val == src) {
991 SDEBUG(" target: %04X\n", target)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" target: %04X\n", target); } while (0);
992 *ptr = ctx->start + target;
993 return;
994 }
995 (*ptr) += 2;
996 } else {
997 pr_info("Bad case\n")do { } while(0);
998 return;
999 }
1000 (*ptr) += 2;
1001}
1002
1003static void atom_op_test(atom_exec_context *ctx, int *ptr, int arg)
1004{
1005 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
1006 uint32_t dst, src;
1007 SDEBUG(" src1: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src1: "); } while (0);
1008 dst = atom_get_dst(ctx, arg, attr, ptr, NULL((void *)0), 1);
1009 SDEBUG(" src2: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src2: "); } while (0);
1010 src = atom_get_src(ctx, attr, ptr);
1011 ctx->ctx->cs_equal = ((dst & src) == 0);
1012 SDEBUG(" result: %s\n", ctx->ctx->cs_equal ? "EQ" : "NE")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" result: %s\n", ctx->ctx->cs_equal ? "EQ" :
"NE"); } while (0);
1013}
1014
1015static void atom_op_xor(atom_exec_context *ctx, int *ptr, int arg)
1016{
1017 uint8_t attr = U8((*ptr)++)get_u8(ctx->ctx->bios, ((*ptr)++));
1018 uint32_t dst, src, saved;
1019 int dptr = *ptr;
1020 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
1021 dst = atom_get_dst(ctx, arg, attr, ptr, &saved, 1);
1022 SDEBUG(" src: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" src: "); } while (0);
1023 src = atom_get_src(ctx, attr, ptr);
1024 dst ^= src;
1025 SDEBUG(" dst: ")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(" dst: "); } while (0);
1026 atom_put_dst(ctx, arg, attr, &dptr, dst, saved);
1027}
1028
1029static void atom_op_debug(atom_exec_context *ctx, int *ptr, int arg)
1030{
1031 pr_info("unimplemented!\n")do { } while(0);
1032}
1033
1034static struct {
1035 void (*func) (atom_exec_context *, int *, int);
1036 int arg;
1037} opcode_table[ATOM_OP_CNT123] = {
1038 {
1039 NULL((void *)0), 0}, {
1040 atom_op_move, ATOM_ARG_REG0}, {
1041 atom_op_move, ATOM_ARG_PS1}, {
1042 atom_op_move, ATOM_ARG_WS2}, {
1043 atom_op_move, ATOM_ARG_FB3}, {
1044 atom_op_move, ATOM_ARG_PLL6}, {
1045 atom_op_move, ATOM_ARG_MC7}, {
1046 atom_op_and, ATOM_ARG_REG0}, {
1047 atom_op_and, ATOM_ARG_PS1}, {
1048 atom_op_and, ATOM_ARG_WS2}, {
1049 atom_op_and, ATOM_ARG_FB3}, {
1050 atom_op_and, ATOM_ARG_PLL6}, {
1051 atom_op_and, ATOM_ARG_MC7}, {
1052 atom_op_or, ATOM_ARG_REG0}, {
1053 atom_op_or, ATOM_ARG_PS1}, {
1054 atom_op_or, ATOM_ARG_WS2}, {
1055 atom_op_or, ATOM_ARG_FB3}, {
1056 atom_op_or, ATOM_ARG_PLL6}, {
1057 atom_op_or, ATOM_ARG_MC7}, {
1058 atom_op_shift_left, ATOM_ARG_REG0}, {
1059 atom_op_shift_left, ATOM_ARG_PS1}, {
1060 atom_op_shift_left, ATOM_ARG_WS2}, {
1061 atom_op_shift_left, ATOM_ARG_FB3}, {
1062 atom_op_shift_left, ATOM_ARG_PLL6}, {
1063 atom_op_shift_left, ATOM_ARG_MC7}, {
1064 atom_op_shift_right, ATOM_ARG_REG0}, {
1065 atom_op_shift_right, ATOM_ARG_PS1}, {
1066 atom_op_shift_right, ATOM_ARG_WS2}, {
1067 atom_op_shift_right, ATOM_ARG_FB3}, {
1068 atom_op_shift_right, ATOM_ARG_PLL6}, {
1069 atom_op_shift_right, ATOM_ARG_MC7}, {
1070 atom_op_mul, ATOM_ARG_REG0}, {
1071 atom_op_mul, ATOM_ARG_PS1}, {
1072 atom_op_mul, ATOM_ARG_WS2}, {
1073 atom_op_mul, ATOM_ARG_FB3}, {
1074 atom_op_mul, ATOM_ARG_PLL6}, {
1075 atom_op_mul, ATOM_ARG_MC7}, {
1076 atom_op_div, ATOM_ARG_REG0}, {
1077 atom_op_div, ATOM_ARG_PS1}, {
1078 atom_op_div, ATOM_ARG_WS2}, {
1079 atom_op_div, ATOM_ARG_FB3}, {
1080 atom_op_div, ATOM_ARG_PLL6}, {
1081 atom_op_div, ATOM_ARG_MC7}, {
1082 atom_op_add, ATOM_ARG_REG0}, {
1083 atom_op_add, ATOM_ARG_PS1}, {
1084 atom_op_add, ATOM_ARG_WS2}, {
1085 atom_op_add, ATOM_ARG_FB3}, {
1086 atom_op_add, ATOM_ARG_PLL6}, {
1087 atom_op_add, ATOM_ARG_MC7}, {
1088 atom_op_sub, ATOM_ARG_REG0}, {
1089 atom_op_sub, ATOM_ARG_PS1}, {
1090 atom_op_sub, ATOM_ARG_WS2}, {
1091 atom_op_sub, ATOM_ARG_FB3}, {
1092 atom_op_sub, ATOM_ARG_PLL6}, {
1093 atom_op_sub, ATOM_ARG_MC7}, {
1094 atom_op_setport, ATOM_PORT_ATI0}, {
1095 atom_op_setport, ATOM_PORT_PCI1}, {
1096 atom_op_setport, ATOM_PORT_SYSIO2}, {
1097 atom_op_setregblock, 0}, {
1098 atom_op_setfbbase, 0}, {
1099 atom_op_compare, ATOM_ARG_REG0}, {
1100 atom_op_compare, ATOM_ARG_PS1}, {
1101 atom_op_compare, ATOM_ARG_WS2}, {
1102 atom_op_compare, ATOM_ARG_FB3}, {
1103 atom_op_compare, ATOM_ARG_PLL6}, {
1104 atom_op_compare, ATOM_ARG_MC7}, {
1105 atom_op_switch, 0}, {
1106 atom_op_jump, ATOM_COND_ALWAYS2}, {
1107 atom_op_jump, ATOM_COND_EQUAL5}, {
1108 atom_op_jump, ATOM_COND_BELOW3}, {
1109 atom_op_jump, ATOM_COND_ABOVE0}, {
1110 atom_op_jump, ATOM_COND_BELOWOREQUAL4}, {
1111 atom_op_jump, ATOM_COND_ABOVEOREQUAL1}, {
1112 atom_op_jump, ATOM_COND_NOTEQUAL6}, {
1113 atom_op_test, ATOM_ARG_REG0}, {
1114 atom_op_test, ATOM_ARG_PS1}, {
1115 atom_op_test, ATOM_ARG_WS2}, {
1116 atom_op_test, ATOM_ARG_FB3}, {
1117 atom_op_test, ATOM_ARG_PLL6}, {
1118 atom_op_test, ATOM_ARG_MC7}, {
1119 atom_op_delay, ATOM_UNIT_MILLISEC1}, {
1120 atom_op_delay, ATOM_UNIT_MICROSEC0}, {
1121 atom_op_calltable, 0}, {
1122 atom_op_repeat, 0}, {
1123 atom_op_clear, ATOM_ARG_REG0}, {
1124 atom_op_clear, ATOM_ARG_PS1}, {
1125 atom_op_clear, ATOM_ARG_WS2}, {
1126 atom_op_clear, ATOM_ARG_FB3}, {
1127 atom_op_clear, ATOM_ARG_PLL6}, {
1128 atom_op_clear, ATOM_ARG_MC7}, {
1129 atom_op_nop, 0}, {
1130 atom_op_eot, 0}, {
1131 atom_op_mask, ATOM_ARG_REG0}, {
1132 atom_op_mask, ATOM_ARG_PS1}, {
1133 atom_op_mask, ATOM_ARG_WS2}, {
1134 atom_op_mask, ATOM_ARG_FB3}, {
1135 atom_op_mask, ATOM_ARG_PLL6}, {
1136 atom_op_mask, ATOM_ARG_MC7}, {
1137 atom_op_postcard, 0}, {
1138 atom_op_beep, 0}, {
1139 atom_op_savereg, 0}, {
1140 atom_op_restorereg, 0}, {
1141 atom_op_setdatablock, 0}, {
1142 atom_op_xor, ATOM_ARG_REG0}, {
1143 atom_op_xor, ATOM_ARG_PS1}, {
1144 atom_op_xor, ATOM_ARG_WS2}, {
1145 atom_op_xor, ATOM_ARG_FB3}, {
1146 atom_op_xor, ATOM_ARG_PLL6}, {
1147 atom_op_xor, ATOM_ARG_MC7}, {
1148 atom_op_shl, ATOM_ARG_REG0}, {
1149 atom_op_shl, ATOM_ARG_PS1}, {
1150 atom_op_shl, ATOM_ARG_WS2}, {
1151 atom_op_shl, ATOM_ARG_FB3}, {
1152 atom_op_shl, ATOM_ARG_PLL6}, {
1153 atom_op_shl, ATOM_ARG_MC7}, {
1154 atom_op_shr, ATOM_ARG_REG0}, {
1155 atom_op_shr, ATOM_ARG_PS1}, {
1156 atom_op_shr, ATOM_ARG_WS2}, {
1157 atom_op_shr, ATOM_ARG_FB3}, {
1158 atom_op_shr, ATOM_ARG_PLL6}, {
1159 atom_op_shr, ATOM_ARG_MC7}, {
1160atom_op_debug, 0},};
1161
1162static int atom_execute_table_locked(struct atom_context *ctx, int index, uint32_t * params)
1163{
1164 int base = CU16(ctx->cmd_table + 4 + 2 * index)get_u16(ctx->bios, (ctx->cmd_table + 4 + 2 * index));
1165 int len, ws, ps, ptr;
1166 unsigned char op;
1167 atom_exec_context ectx;
1168 int ret = 0;
1169
1170 if (!base)
1171 return -EINVAL22;
1172
1173 len = CU16(base + ATOM_CT_SIZE_PTR)get_u16(ctx->bios, (base + 0));
1174 ws = CU8(base + ATOM_CT_WS_PTR)get_u8(ctx->bios, (base + 4));
1175 ps = CU8(base + ATOM_CT_PS_PTR)get_u8(ctx->bios, (base + 5)) & ATOM_CT_PS_MASK0x7F;
1176 ptr = base + ATOM_CT_CODE_PTR6;
1177
1178 SDEBUG(">> execute %04X (len %d, WS %d, PS %d)\n", base, len, ws, ps)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk(">> execute %04X (len %d, WS %d, PS %d)\n", base
, len, ws, ps); } while (0);
1179
1180 ectx.ctx = ctx;
1181 ectx.ps_shift = ps / 4;
1182 ectx.start = base;
1183 ectx.ps = params;
1184 ectx.abort = false0;
1185 ectx.last_jump = 0;
1186 if (ws)
1187 ectx.ws = kcalloc(4, ws, GFP_KERNEL(0x0001 | 0x0004));
1188 else
1189 ectx.ws = NULL((void *)0);
1190
1191 debug_depth++;
1192 while (1) {
1193 op = CU8(ptr++)get_u8(ctx->bios, (ptr++));
1194 if (op < ATOM_OP_NAMES_CNT123)
1195 SDEBUG("%s @ 0x%04X\n", atom_op_names[op], ptr - 1)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk("%s @ 0x%04X\n", atom_op_names[op], ptr - 1); } while
(0);
1196 else
1197 SDEBUG("[%d] @ 0x%04X\n", op, ptr - 1)do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk("[%d] @ 0x%04X\n", op, ptr - 1); } while (0);
1198 if (ectx.abort) {
1199 DRM_ERROR("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n",__drm_err("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n"
, base, len, ws, ps, ptr - 1)
1200 base, len, ws, ps, ptr - 1)__drm_err("atombios stuck executing %04X (len %d, WS %d, PS %d) @ 0x%04X\n"
, base, len, ws, ps, ptr - 1);
1201 ret = -EINVAL22;
1202 goto free;
1203 }
1204
1205 if (op < ATOM_OP_CNT123 && op > 0)
1206 opcode_table[op].func(&ectx, &ptr,
1207 opcode_table[op].arg);
1208 else
1209 break;
1210
1211 if (op == ATOM_OP_EOT91)
1212 break;
1213 }
1214 debug_depth--;
1215 SDEBUG("<<\n")do if (atom_debug) { printk("\0017"); debug_print_spaces(debug_depth
); printk("<<\n"); } while (0);
1216
1217free:
1218 kfree(ectx.ws);
1219 return ret;
1220}
1221
1222int atom_execute_table_scratch_unlocked(struct atom_context *ctx, int index, uint32_t * params)
1223{
1224 int r;
1225
1226 mutex_lock(&ctx->mutex)rw_enter_write(&ctx->mutex);
1227 /* reset data block */
1228 ctx->data_block = 0;
1229 /* reset reg block */
1230 ctx->reg_block = 0;
1231 /* reset fb window */
1232 ctx->fb_base = 0;
1233 /* reset io mode */
1234 ctx->io_mode = ATOM_IO_MM0;
1235 /* reset divmul */
1236 ctx->divmul[0] = 0;
1237 ctx->divmul[1] = 0;
1238 r = atom_execute_table_locked(ctx, index, params);
1239 mutex_unlock(&ctx->mutex)rw_exit_write(&ctx->mutex);
1240 return r;
1241}
1242
1243int atom_execute_table(struct atom_context *ctx, int index, uint32_t * params)
1244{
1245 int r;
1246 mutex_lock(&ctx->scratch_mutex)rw_enter_write(&ctx->scratch_mutex);
1247 r = atom_execute_table_scratch_unlocked(ctx, index, params);
1248 mutex_unlock(&ctx->scratch_mutex)rw_exit_write(&ctx->scratch_mutex);
1249 return r;
1250}
1251
1252static int atom_iio_len[] = { 1, 2, 3, 3, 3, 3, 4, 4, 4, 3 };
1253
1254static void atom_index_iio(struct atom_context *ctx, int base)
1255{
1256 ctx->iio = kzalloc(2 * 256, GFP_KERNEL(0x0001 | 0x0004));
1257 if (!ctx->iio)
1258 return;
1259 while (CU8(base)get_u8(ctx->bios, (base)) == ATOM_IIO_START1) {
1260 ctx->iio[CU8(base + 1)get_u8(ctx->bios, (base + 1))] = base + 2;
1261 base += 2;
1262 while (CU8(base)get_u8(ctx->bios, (base)) != ATOM_IIO_END9)
1263 base += atom_iio_len[CU8(base)get_u8(ctx->bios, (base))];
1264 base += 3;
1265 }
1266}
1267
1268struct atom_context *atom_parse(struct card_info *card, void *bios)
1269{
1270 int base;
1271 struct atom_context *ctx =
1272 kzalloc(sizeof(struct atom_context), GFP_KERNEL(0x0001 | 0x0004));
1273 char *str;
1274 char name[512];
1275 int i;
1276
1277 if (!ctx)
1278 return NULL((void *)0);
1279
1280 ctx->card = card;
1281 ctx->bios = bios;
1282
1283 if (CU16(0)get_u16(ctx->bios, (0)) != ATOM_BIOS_MAGIC0xAA55) {
1284 pr_info("Invalid BIOS magic\n")do { } while(0);
1285 kfree(ctx);
1286 return NULL((void *)0);
1287 }
1288 if (strncmp
1289 (CSTR(ATOM_ATI_MAGIC_PTR)(((char *)(ctx->bios))+(0x30)), ATOM_ATI_MAGIC" 761295520",
1290 strlen(ATOM_ATI_MAGIC" 761295520"))) {
1291 pr_info("Invalid ATI magic\n")do { } while(0);
1292 kfree(ctx);
1293 return NULL((void *)0);
1294 }
1295
1296 base = CU16(ATOM_ROM_TABLE_PTR)get_u16(ctx->bios, (0x48));
1297 if (strncmp
1298 (CSTR(base + ATOM_ROM_MAGIC_PTR)(((char *)(ctx->bios))+(base + 4)), ATOM_ROM_MAGIC"ATOM",
1299 strlen(ATOM_ROM_MAGIC"ATOM"))) {
1300 pr_info("Invalid ATOM magic\n")do { } while(0);
1301 kfree(ctx);
1302 return NULL((void *)0);
1303 }
1304
1305 ctx->cmd_table = CU16(base + ATOM_ROM_CMD_PTR)get_u16(ctx->bios, (base + 0x1E));
1306 ctx->data_table = CU16(base + ATOM_ROM_DATA_PTR)get_u16(ctx->bios, (base + 0x20));
1307 atom_index_iio(ctx, CU16(ctx->data_table + ATOM_DATA_IIO_PTR)get_u16(ctx->bios, (ctx->data_table + 0x32)) + 4);
1308 if (!ctx->iio) {
1309 atom_destroy(ctx);
1310 return NULL((void *)0);
1311 }
1312
1313 str = CSTR(CU16(base + ATOM_ROM_MSG_PTR))(((char *)(ctx->bios))+(get_u16(ctx->bios, (base + 0x10
))));
1314 while (*str && ((*str == '\n') || (*str == '\r')))
1315 str++;
1316 /* name string isn't always 0 terminated */
1317 for (i = 0; i < 511; i++) {
1318 name[i] = str[i];
1319 if (name[i] < '.' || name[i] > 'z') {
1320 name[i] = 0;
1321 break;
1322 }
1323 }
1324 pr_info("ATOM BIOS: %s\n", name)do { } while(0);
1325
1326 return ctx;
1327}
1328
1329int atom_asic_init(struct atom_context *ctx)
1330{
1331 struct radeon_device *rdev = ctx->card->dev->dev_private;
1332 int hwi = CU16(ctx->data_table + ATOM_DATA_FWI_PTR)get_u16(ctx->bios, (ctx->data_table + 0xC));
1333 uint32_t ps[16];
1334 int ret;
1335
1336 memset(ps, 0, 64)__builtin_memset((ps), (0), (64));
1337
1338 ps[0] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFSCLK_PTR))((__uint32_t)(get_u32(ctx->bios, (hwi + 8))));
1339 ps[1] = cpu_to_le32(CU32(hwi + ATOM_FWI_DEFMCLK_PTR))((__uint32_t)(get_u32(ctx->bios, (hwi + 0xC))));
1340 if (!ps[0] || !ps[1])
1341 return 1;
1342
1343 if (!CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_INIT)get_u16(ctx->bios, (ctx->cmd_table + 4 + 2 * 0)))
1344 return 1;
1345 ret = atom_execute_table(ctx, ATOM_CMD_INIT0, ps);
1346 if (ret)
1347 return ret;
1348
1349 memset(ps, 0, 64)__builtin_memset((ps), (0), (64));
1350
1351 if (rdev->family < CHIP_R600) {
1352 if (CU16(ctx->cmd_table + 4 + 2 * ATOM_CMD_SPDFANCNTL)get_u16(ctx->bios, (ctx->cmd_table + 4 + 2 * 0x39)))
1353 atom_execute_table(ctx, ATOM_CMD_SPDFANCNTL0x39, ps);
1354 }
1355 return ret;
1356}
1357
1358void atom_destroy(struct atom_context *ctx)
1359{
1360 kfree(ctx->iio);
1361 kfree(ctx);
1362}
1363
1364bool_Bool atom_parse_data_header(struct atom_context *ctx, int index,
1365 uint16_t * size, uint8_t * frev, uint8_t * crev,
1366 uint16_t * data_start)
1367{
1368 int offset = index * 2 + 4;
1369 int idx = CU16(ctx->data_table + offset)get_u16(ctx->bios, (ctx->data_table + offset));
1370 u16 *mdt = (u16 *)(ctx->bios + ctx->data_table + 4);
1371
1372 if (!mdt[index])
1373 return false0;
1374
1375 if (size)
1376 *size = CU16(idx)get_u16(ctx->bios, (idx));
1377 if (frev)
1378 *frev = CU8(idx + 2)get_u8(ctx->bios, (idx + 2));
1379 if (crev)
1380 *crev = CU8(idx + 3)get_u8(ctx->bios, (idx + 3));
1381 *data_start = idx;
1382 return true1;
1383}
1384
1385bool_Bool atom_parse_cmd_header(struct atom_context *ctx, int index, uint8_t * frev,
1386 uint8_t * crev)
1387{
1388 int offset = index * 2 + 4;
1389 int idx = CU16(ctx->cmd_table + offset)get_u16(ctx->bios, (ctx->cmd_table + offset));
1390 u16 *mct = (u16 *)(ctx->bios + ctx->cmd_table + 4);
1391
1392 if (!mct[index])
1393 return false0;
1394
1395 if (frev)
1396 *frev = CU8(idx + 2)get_u8(ctx->bios, (idx + 2));
1397 if (crev)
1398 *crev = CU8(idx + 3)get_u8(ctx->bios, (idx + 3));
1399 return true1;
1400}
1401
1402int atom_allocate_fb_scratch(struct atom_context *ctx)
1403{
1404 int index = GetIndexIntoMasterTable(DATA, VRAM_UsageByFirmware)(((char*)(&((ATOM_MASTER_LIST_OF_DATA_TABLES*)0)->VRAM_UsageByFirmware
)-(char*)0)/sizeof(USHORT));
1405 uint16_t data_offset;
1406 int usage_bytes = 0;
1407 struct _ATOM_VRAM_USAGE_BY_FIRMWARE *firmware_usage;
1408
1409 if (atom_parse_data_header(ctx, index, NULL((void *)0), NULL((void *)0), NULL((void *)0), &data_offset)) {
1410 firmware_usage = (struct _ATOM_VRAM_USAGE_BY_FIRMWARE *)(ctx->bios + data_offset);
1411
1412 DRM_DEBUG("atom firmware requested %08x %dkb\n",__drm_dbg(DRM_UT_CORE, "atom firmware requested %08x %dkb\n",
((__uint32_t)(firmware_usage->asFirmwareVramReserveInfo[0
].ulStartAddrUsedByFirmware)), ((__uint16_t)(firmware_usage->
asFirmwareVramReserveInfo[0].usFirmwareUseInKb)))
1413 le32_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].ulStartAddrUsedByFirmware),__drm_dbg(DRM_UT_CORE, "atom firmware requested %08x %dkb\n",
((__uint32_t)(firmware_usage->asFirmwareVramReserveInfo[0
].ulStartAddrUsedByFirmware)), ((__uint16_t)(firmware_usage->
asFirmwareVramReserveInfo[0].usFirmwareUseInKb)))
1414 le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb))__drm_dbg(DRM_UT_CORE, "atom firmware requested %08x %dkb\n",
((__uint32_t)(firmware_usage->asFirmwareVramReserveInfo[0
].ulStartAddrUsedByFirmware)), ((__uint16_t)(firmware_usage->
asFirmwareVramReserveInfo[0].usFirmwareUseInKb)));
1415
1416 usage_bytes = le16_to_cpu(firmware_usage->asFirmwareVramReserveInfo[0].usFirmwareUseInKb)((__uint16_t)(firmware_usage->asFirmwareVramReserveInfo[0]
.usFirmwareUseInKb)) * 1024;
1417 }
1418 ctx->scratch_size_bytes = 0;
1419 if (usage_bytes == 0)
1420 usage_bytes = 20 * 1024;
1421 /* allocate some scratch memory */
1422 ctx->scratch = kzalloc(usage_bytes, GFP_KERNEL(0x0001 | 0x0004));
1423 if (!ctx->scratch)
1424 return -ENOMEM12;
1425 ctx->scratch_size_bytes = usage_bytes;
1426 return 0;
1427}