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1 | /* | |
2 | * Copyright © 2009 | |
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 (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Daniel Vetter <daniel@ffwll.ch> | |
25 | * | |
26 | * Derived from Xorg ddx, xf86-video-intel, src/i830_video.c | |
27 | */ | |
28 | #include <drm/drmP.h> | |
29 | #include <drm/i915_drm.h> | |
30 | #include "i915_drv.h" | |
31 | #include "i915_reg.h" | |
32 | #include "intel_drv.h" | |
33 | ||
34 | /* Limits for overlay size. According to intel doc, the real limits are: | |
35 | * Y width: 4095, UV width (planar): 2047, Y height: 2047, | |
36 | * UV width (planar): * 1023. But the xorg thinks 2048 for height and width. Use | |
37 | * the mininum of both. */ | |
38 | #define IMAGE_MAX_WIDTH 2048 | |
39 | #define IMAGE_MAX_HEIGHT 2046 /* 2 * 1023 */ | |
40 | /* on 830 and 845 these large limits result in the card hanging */ | |
41 | #define IMAGE_MAX_WIDTH_LEGACY 1024 | |
42 | #define IMAGE_MAX_HEIGHT_LEGACY 1088 | |
43 | ||
44 | /* overlay register definitions */ | |
45 | /* OCMD register */ | |
46 | #define OCMD_TILED_SURFACE (0x1<<19) | |
47 | #define OCMD_MIRROR_MASK (0x3<<17) | |
48 | #define OCMD_MIRROR_MODE (0x3<<17) | |
49 | #define OCMD_MIRROR_HORIZONTAL (0x1<<17) | |
50 | #define OCMD_MIRROR_VERTICAL (0x2<<17) | |
51 | #define OCMD_MIRROR_BOTH (0x3<<17) | |
52 | #define OCMD_BYTEORDER_MASK (0x3<<14) /* zero for YUYV or FOURCC YUY2 */ | |
53 | #define OCMD_UV_SWAP (0x1<<14) /* YVYU */ | |
54 | #define OCMD_Y_SWAP (0x2<<14) /* UYVY or FOURCC UYVY */ | |
55 | #define OCMD_Y_AND_UV_SWAP (0x3<<14) /* VYUY */ | |
56 | #define OCMD_SOURCE_FORMAT_MASK (0xf<<10) | |
57 | #define OCMD_RGB_888 (0x1<<10) /* not in i965 Intel docs */ | |
58 | #define OCMD_RGB_555 (0x2<<10) /* not in i965 Intel docs */ | |
59 | #define OCMD_RGB_565 (0x3<<10) /* not in i965 Intel docs */ | |
60 | #define OCMD_YUV_422_PACKED (0x8<<10) | |
61 | #define OCMD_YUV_411_PACKED (0x9<<10) /* not in i965 Intel docs */ | |
62 | #define OCMD_YUV_420_PLANAR (0xc<<10) | |
63 | #define OCMD_YUV_422_PLANAR (0xd<<10) | |
64 | #define OCMD_YUV_410_PLANAR (0xe<<10) /* also 411 */ | |
65 | #define OCMD_TVSYNCFLIP_PARITY (0x1<<9) | |
66 | #define OCMD_TVSYNCFLIP_ENABLE (0x1<<7) | |
67 | #define OCMD_BUF_TYPE_MASK (0x1<<5) | |
68 | #define OCMD_BUF_TYPE_FRAME (0x0<<5) | |
69 | #define OCMD_BUF_TYPE_FIELD (0x1<<5) | |
70 | #define OCMD_TEST_MODE (0x1<<4) | |
71 | #define OCMD_BUFFER_SELECT (0x3<<2) | |
72 | #define OCMD_BUFFER0 (0x0<<2) | |
73 | #define OCMD_BUFFER1 (0x1<<2) | |
74 | #define OCMD_FIELD_SELECT (0x1<<2) | |
75 | #define OCMD_FIELD0 (0x0<<1) | |
76 | #define OCMD_FIELD1 (0x1<<1) | |
77 | #define OCMD_ENABLE (0x1<<0) | |
78 | ||
79 | /* OCONFIG register */ | |
80 | #define OCONF_PIPE_MASK (0x1<<18) | |
81 | #define OCONF_PIPE_A (0x0<<18) | |
82 | #define OCONF_PIPE_B (0x1<<18) | |
83 | #define OCONF_GAMMA2_ENABLE (0x1<<16) | |
84 | #define OCONF_CSC_MODE_BT601 (0x0<<5) | |
85 | #define OCONF_CSC_MODE_BT709 (0x1<<5) | |
86 | #define OCONF_CSC_BYPASS (0x1<<4) | |
87 | #define OCONF_CC_OUT_8BIT (0x1<<3) | |
88 | #define OCONF_TEST_MODE (0x1<<2) | |
89 | #define OCONF_THREE_LINE_BUFFER (0x1<<0) | |
90 | #define OCONF_TWO_LINE_BUFFER (0x0<<0) | |
91 | ||
92 | /* DCLRKM (dst-key) register */ | |
93 | #define DST_KEY_ENABLE (0x1<<31) | |
94 | #define CLK_RGB24_MASK 0x0 | |
95 | #define CLK_RGB16_MASK 0x070307 | |
96 | #define CLK_RGB15_MASK 0x070707 | |
97 | #define CLK_RGB8I_MASK 0xffffff | |
98 | ||
99 | #define RGB16_TO_COLORKEY(c) \ | |
100 | (((c & 0xF800) << 8) | ((c & 0x07E0) << 5) | ((c & 0x001F) << 3)) | |
101 | #define RGB15_TO_COLORKEY(c) \ | |
102 | (((c & 0x7c00) << 9) | ((c & 0x03E0) << 6) | ((c & 0x001F) << 3)) | |
103 | ||
104 | /* overlay flip addr flag */ | |
105 | #define OFC_UPDATE 0x1 | |
106 | ||
107 | /* polyphase filter coefficients */ | |
108 | #define N_HORIZ_Y_TAPS 5 | |
109 | #define N_VERT_Y_TAPS 3 | |
110 | #define N_HORIZ_UV_TAPS 3 | |
111 | #define N_VERT_UV_TAPS 3 | |
112 | #define N_PHASES 17 | |
113 | #define MAX_TAPS 5 | |
114 | ||
115 | /* memory bufferd overlay registers */ | |
116 | struct overlay_registers { | |
117 | u32 OBUF_0Y; | |
118 | u32 OBUF_1Y; | |
119 | u32 OBUF_0U; | |
120 | u32 OBUF_0V; | |
121 | u32 OBUF_1U; | |
122 | u32 OBUF_1V; | |
123 | u32 OSTRIDE; | |
124 | u32 YRGB_VPH; | |
125 | u32 UV_VPH; | |
126 | u32 HORZ_PH; | |
127 | u32 INIT_PHS; | |
128 | u32 DWINPOS; | |
129 | u32 DWINSZ; | |
130 | u32 SWIDTH; | |
131 | u32 SWIDTHSW; | |
132 | u32 SHEIGHT; | |
133 | u32 YRGBSCALE; | |
134 | u32 UVSCALE; | |
135 | u32 OCLRC0; | |
136 | u32 OCLRC1; | |
137 | u32 DCLRKV; | |
138 | u32 DCLRKM; | |
139 | u32 SCLRKVH; | |
140 | u32 SCLRKVL; | |
141 | u32 SCLRKEN; | |
142 | u32 OCONFIG; | |
143 | u32 OCMD; | |
144 | u32 RESERVED1; /* 0x6C */ | |
145 | u32 OSTART_0Y; | |
146 | u32 OSTART_1Y; | |
147 | u32 OSTART_0U; | |
148 | u32 OSTART_0V; | |
149 | u32 OSTART_1U; | |
150 | u32 OSTART_1V; | |
151 | u32 OTILEOFF_0Y; | |
152 | u32 OTILEOFF_1Y; | |
153 | u32 OTILEOFF_0U; | |
154 | u32 OTILEOFF_0V; | |
155 | u32 OTILEOFF_1U; | |
156 | u32 OTILEOFF_1V; | |
157 | u32 FASTHSCALE; /* 0xA0 */ | |
158 | u32 UVSCALEV; /* 0xA4 */ | |
159 | u32 RESERVEDC[(0x200 - 0xA8) / 4]; /* 0xA8 - 0x1FC */ | |
160 | u16 Y_VCOEFS[N_VERT_Y_TAPS * N_PHASES]; /* 0x200 */ | |
161 | u16 RESERVEDD[0x100 / 2 - N_VERT_Y_TAPS * N_PHASES]; | |
162 | u16 Y_HCOEFS[N_HORIZ_Y_TAPS * N_PHASES]; /* 0x300 */ | |
163 | u16 RESERVEDE[0x200 / 2 - N_HORIZ_Y_TAPS * N_PHASES]; | |
164 | u16 UV_VCOEFS[N_VERT_UV_TAPS * N_PHASES]; /* 0x500 */ | |
165 | u16 RESERVEDF[0x100 / 2 - N_VERT_UV_TAPS * N_PHASES]; | |
166 | u16 UV_HCOEFS[N_HORIZ_UV_TAPS * N_PHASES]; /* 0x600 */ | |
167 | u16 RESERVEDG[0x100 / 2 - N_HORIZ_UV_TAPS * N_PHASES]; | |
168 | }; | |
169 | ||
170 | struct intel_overlay { | |
171 | struct drm_device *dev; | |
172 | struct intel_crtc *crtc; | |
173 | struct drm_i915_gem_object *vid_bo; | |
174 | struct drm_i915_gem_object *old_vid_bo; | |
175 | int active; | |
176 | int pfit_active; | |
177 | u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */ | |
178 | u32 color_key; | |
179 | u32 brightness, contrast, saturation; | |
180 | u32 old_xscale, old_yscale; | |
181 | /* register access */ | |
182 | u32 flip_addr; | |
183 | struct drm_i915_gem_object *reg_bo; | |
184 | /* flip handling */ | |
185 | uint32_t last_flip_req; | |
186 | void (*flip_tail)(struct intel_overlay *); | |
187 | }; | |
188 | ||
189 | static struct overlay_registers __iomem * | |
190 | intel_overlay_map_regs(struct intel_overlay *overlay) | |
191 | { | |
192 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; | |
193 | struct overlay_registers __iomem *regs; | |
194 | ||
195 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
196 | regs = (struct overlay_registers __iomem *)overlay->reg_bo->phys_obj->handle->vaddr; | |
197 | else | |
198 | regs = io_mapping_map_wc(dev_priv->mm.gtt_mapping, | |
199 | overlay->reg_bo->gtt_offset); | |
200 | ||
201 | return regs; | |
202 | } | |
203 | ||
204 | static void intel_overlay_unmap_regs(struct intel_overlay *overlay, | |
205 | struct overlay_registers __iomem *regs) | |
206 | { | |
207 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
208 | io_mapping_unmap(regs); | |
209 | } | |
210 | ||
211 | static int intel_overlay_do_wait_request(struct intel_overlay *overlay, | |
212 | void (*tail)(struct intel_overlay *)) | |
213 | { | |
214 | struct drm_device *dev = overlay->dev; | |
215 | drm_i915_private_t *dev_priv = dev->dev_private; | |
216 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
217 | int ret; | |
218 | ||
219 | BUG_ON(overlay->last_flip_req); | |
220 | ret = i915_add_request(ring, NULL, &overlay->last_flip_req); | |
221 | if (ret) | |
222 | return ret; | |
223 | ||
224 | overlay->flip_tail = tail; | |
225 | ret = i915_wait_seqno(ring, overlay->last_flip_req); | |
226 | if (ret) | |
227 | return ret; | |
228 | i915_gem_retire_requests(dev); | |
229 | ||
230 | overlay->last_flip_req = 0; | |
231 | return 0; | |
232 | } | |
233 | ||
234 | /* overlay needs to be disable in OCMD reg */ | |
235 | static int intel_overlay_on(struct intel_overlay *overlay) | |
236 | { | |
237 | struct drm_device *dev = overlay->dev; | |
238 | struct drm_i915_private *dev_priv = dev->dev_private; | |
239 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
240 | int ret; | |
241 | ||
242 | BUG_ON(overlay->active); | |
243 | overlay->active = 1; | |
244 | ||
245 | WARN_ON(IS_I830(dev) && !(dev_priv->quirks & QUIRK_PIPEA_FORCE)); | |
246 | ||
247 | ret = intel_ring_begin(ring, 4); | |
248 | if (ret) | |
249 | return ret; | |
250 | ||
251 | intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_ON); | |
252 | intel_ring_emit(ring, overlay->flip_addr | OFC_UPDATE); | |
253 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
254 | intel_ring_emit(ring, MI_NOOP); | |
255 | intel_ring_advance(ring); | |
256 | ||
257 | return intel_overlay_do_wait_request(overlay, NULL); | |
258 | } | |
259 | ||
260 | /* overlay needs to be enabled in OCMD reg */ | |
261 | static int intel_overlay_continue(struct intel_overlay *overlay, | |
262 | bool load_polyphase_filter) | |
263 | { | |
264 | struct drm_device *dev = overlay->dev; | |
265 | drm_i915_private_t *dev_priv = dev->dev_private; | |
266 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
267 | u32 flip_addr = overlay->flip_addr; | |
268 | u32 tmp; | |
269 | int ret; | |
270 | ||
271 | BUG_ON(!overlay->active); | |
272 | ||
273 | if (load_polyphase_filter) | |
274 | flip_addr |= OFC_UPDATE; | |
275 | ||
276 | /* check for underruns */ | |
277 | tmp = I915_READ(DOVSTA); | |
278 | if (tmp & (1 << 17)) | |
279 | DRM_DEBUG("overlay underrun, DOVSTA: %x\n", tmp); | |
280 | ||
281 | ret = intel_ring_begin(ring, 2); | |
282 | if (ret) | |
283 | return ret; | |
284 | ||
285 | intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); | |
286 | intel_ring_emit(ring, flip_addr); | |
287 | intel_ring_advance(ring); | |
288 | ||
289 | return i915_add_request(ring, NULL, &overlay->last_flip_req); | |
290 | } | |
291 | ||
292 | static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay) | |
293 | { | |
294 | struct drm_i915_gem_object *obj = overlay->old_vid_bo; | |
295 | ||
296 | i915_gem_object_unpin(obj); | |
297 | drm_gem_object_unreference(&obj->base); | |
298 | ||
299 | overlay->old_vid_bo = NULL; | |
300 | } | |
301 | ||
302 | static void intel_overlay_off_tail(struct intel_overlay *overlay) | |
303 | { | |
304 | struct drm_i915_gem_object *obj = overlay->vid_bo; | |
305 | ||
306 | /* never have the overlay hw on without showing a frame */ | |
307 | BUG_ON(!overlay->vid_bo); | |
308 | ||
309 | i915_gem_object_unpin(obj); | |
310 | drm_gem_object_unreference(&obj->base); | |
311 | overlay->vid_bo = NULL; | |
312 | ||
313 | overlay->crtc->overlay = NULL; | |
314 | overlay->crtc = NULL; | |
315 | overlay->active = 0; | |
316 | } | |
317 | ||
318 | /* overlay needs to be disabled in OCMD reg */ | |
319 | static int intel_overlay_off(struct intel_overlay *overlay) | |
320 | { | |
321 | struct drm_device *dev = overlay->dev; | |
322 | struct drm_i915_private *dev_priv = dev->dev_private; | |
323 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
324 | u32 flip_addr = overlay->flip_addr; | |
325 | int ret; | |
326 | ||
327 | BUG_ON(!overlay->active); | |
328 | ||
329 | /* According to intel docs the overlay hw may hang (when switching | |
330 | * off) without loading the filter coeffs. It is however unclear whether | |
331 | * this applies to the disabling of the overlay or to the switching off | |
332 | * of the hw. Do it in both cases */ | |
333 | flip_addr |= OFC_UPDATE; | |
334 | ||
335 | ret = intel_ring_begin(ring, 6); | |
336 | if (ret) | |
337 | return ret; | |
338 | ||
339 | /* wait for overlay to go idle */ | |
340 | intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); | |
341 | intel_ring_emit(ring, flip_addr); | |
342 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
343 | /* turn overlay off */ | |
344 | intel_ring_emit(ring, MI_OVERLAY_FLIP | MI_OVERLAY_OFF); | |
345 | intel_ring_emit(ring, flip_addr); | |
346 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
347 | intel_ring_advance(ring); | |
348 | ||
349 | return intel_overlay_do_wait_request(overlay, intel_overlay_off_tail); | |
350 | } | |
351 | ||
352 | /* recover from an interruption due to a signal | |
353 | * We have to be careful not to repeat work forever an make forward progess. */ | |
354 | static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay) | |
355 | { | |
356 | struct drm_device *dev = overlay->dev; | |
357 | drm_i915_private_t *dev_priv = dev->dev_private; | |
358 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
359 | int ret; | |
360 | ||
361 | if (overlay->last_flip_req == 0) | |
362 | return 0; | |
363 | ||
364 | ret = i915_wait_seqno(ring, overlay->last_flip_req); | |
365 | if (ret) | |
366 | return ret; | |
367 | i915_gem_retire_requests(dev); | |
368 | ||
369 | if (overlay->flip_tail) | |
370 | overlay->flip_tail(overlay); | |
371 | ||
372 | overlay->last_flip_req = 0; | |
373 | return 0; | |
374 | } | |
375 | ||
376 | /* Wait for pending overlay flip and release old frame. | |
377 | * Needs to be called before the overlay register are changed | |
378 | * via intel_overlay_(un)map_regs | |
379 | */ | |
380 | static int intel_overlay_release_old_vid(struct intel_overlay *overlay) | |
381 | { | |
382 | struct drm_device *dev = overlay->dev; | |
383 | drm_i915_private_t *dev_priv = dev->dev_private; | |
384 | struct intel_ring_buffer *ring = &dev_priv->ring[RCS]; | |
385 | int ret; | |
386 | ||
387 | /* Only wait if there is actually an old frame to release to | |
388 | * guarantee forward progress. | |
389 | */ | |
390 | if (!overlay->old_vid_bo) | |
391 | return 0; | |
392 | ||
393 | if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) { | |
394 | /* synchronous slowpath */ | |
395 | ret = intel_ring_begin(ring, 2); | |
396 | if (ret) | |
397 | return ret; | |
398 | ||
399 | intel_ring_emit(ring, MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
400 | intel_ring_emit(ring, MI_NOOP); | |
401 | intel_ring_advance(ring); | |
402 | ||
403 | ret = intel_overlay_do_wait_request(overlay, | |
404 | intel_overlay_release_old_vid_tail); | |
405 | if (ret) | |
406 | return ret; | |
407 | } | |
408 | ||
409 | intel_overlay_release_old_vid_tail(overlay); | |
410 | return 0; | |
411 | } | |
412 | ||
413 | struct put_image_params { | |
414 | int format; | |
415 | short dst_x; | |
416 | short dst_y; | |
417 | short dst_w; | |
418 | short dst_h; | |
419 | short src_w; | |
420 | short src_scan_h; | |
421 | short src_scan_w; | |
422 | short src_h; | |
423 | short stride_Y; | |
424 | short stride_UV; | |
425 | int offset_Y; | |
426 | int offset_U; | |
427 | int offset_V; | |
428 | }; | |
429 | ||
430 | static int packed_depth_bytes(u32 format) | |
431 | { | |
432 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
433 | case I915_OVERLAY_YUV422: | |
434 | return 4; | |
435 | case I915_OVERLAY_YUV411: | |
436 | /* return 6; not implemented */ | |
437 | default: | |
438 | return -EINVAL; | |
439 | } | |
440 | } | |
441 | ||
442 | static int packed_width_bytes(u32 format, short width) | |
443 | { | |
444 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
445 | case I915_OVERLAY_YUV422: | |
446 | return width << 1; | |
447 | default: | |
448 | return -EINVAL; | |
449 | } | |
450 | } | |
451 | ||
452 | static int uv_hsubsampling(u32 format) | |
453 | { | |
454 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
455 | case I915_OVERLAY_YUV422: | |
456 | case I915_OVERLAY_YUV420: | |
457 | return 2; | |
458 | case I915_OVERLAY_YUV411: | |
459 | case I915_OVERLAY_YUV410: | |
460 | return 4; | |
461 | default: | |
462 | return -EINVAL; | |
463 | } | |
464 | } | |
465 | ||
466 | static int uv_vsubsampling(u32 format) | |
467 | { | |
468 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
469 | case I915_OVERLAY_YUV420: | |
470 | case I915_OVERLAY_YUV410: | |
471 | return 2; | |
472 | case I915_OVERLAY_YUV422: | |
473 | case I915_OVERLAY_YUV411: | |
474 | return 1; | |
475 | default: | |
476 | return -EINVAL; | |
477 | } | |
478 | } | |
479 | ||
480 | static u32 calc_swidthsw(struct drm_device *dev, u32 offset, u32 width) | |
481 | { | |
482 | u32 mask, shift, ret; | |
483 | if (IS_GEN2(dev)) { | |
484 | mask = 0x1f; | |
485 | shift = 5; | |
486 | } else { | |
487 | mask = 0x3f; | |
488 | shift = 6; | |
489 | } | |
490 | ret = ((offset + width + mask) >> shift) - (offset >> shift); | |
491 | if (!IS_GEN2(dev)) | |
492 | ret <<= 1; | |
493 | ret -= 1; | |
494 | return ret << 2; | |
495 | } | |
496 | ||
497 | static const u16 y_static_hcoeffs[N_HORIZ_Y_TAPS * N_PHASES] = { | |
498 | 0x3000, 0xb4a0, 0x1930, 0x1920, 0xb4a0, | |
499 | 0x3000, 0xb500, 0x19d0, 0x1880, 0xb440, | |
500 | 0x3000, 0xb540, 0x1a88, 0x2f80, 0xb3e0, | |
501 | 0x3000, 0xb580, 0x1b30, 0x2e20, 0xb380, | |
502 | 0x3000, 0xb5c0, 0x1bd8, 0x2cc0, 0xb320, | |
503 | 0x3020, 0xb5e0, 0x1c60, 0x2b80, 0xb2c0, | |
504 | 0x3020, 0xb5e0, 0x1cf8, 0x2a20, 0xb260, | |
505 | 0x3020, 0xb5e0, 0x1d80, 0x28e0, 0xb200, | |
506 | 0x3020, 0xb5c0, 0x1e08, 0x3f40, 0xb1c0, | |
507 | 0x3020, 0xb580, 0x1e78, 0x3ce0, 0xb160, | |
508 | 0x3040, 0xb520, 0x1ed8, 0x3aa0, 0xb120, | |
509 | 0x3040, 0xb4a0, 0x1f30, 0x3880, 0xb0e0, | |
510 | 0x3040, 0xb400, 0x1f78, 0x3680, 0xb0a0, | |
511 | 0x3020, 0xb340, 0x1fb8, 0x34a0, 0xb060, | |
512 | 0x3020, 0xb240, 0x1fe0, 0x32e0, 0xb040, | |
513 | 0x3020, 0xb140, 0x1ff8, 0x3160, 0xb020, | |
514 | 0xb000, 0x3000, 0x0800, 0x3000, 0xb000 | |
515 | }; | |
516 | ||
517 | static const u16 uv_static_hcoeffs[N_HORIZ_UV_TAPS * N_PHASES] = { | |
518 | 0x3000, 0x1800, 0x1800, 0xb000, 0x18d0, 0x2e60, | |
519 | 0xb000, 0x1990, 0x2ce0, 0xb020, 0x1a68, 0x2b40, | |
520 | 0xb040, 0x1b20, 0x29e0, 0xb060, 0x1bd8, 0x2880, | |
521 | 0xb080, 0x1c88, 0x3e60, 0xb0a0, 0x1d28, 0x3c00, | |
522 | 0xb0c0, 0x1db8, 0x39e0, 0xb0e0, 0x1e40, 0x37e0, | |
523 | 0xb100, 0x1eb8, 0x3620, 0xb100, 0x1f18, 0x34a0, | |
524 | 0xb100, 0x1f68, 0x3360, 0xb0e0, 0x1fa8, 0x3240, | |
525 | 0xb0c0, 0x1fe0, 0x3140, 0xb060, 0x1ff0, 0x30a0, | |
526 | 0x3000, 0x0800, 0x3000 | |
527 | }; | |
528 | ||
529 | static void update_polyphase_filter(struct overlay_registers __iomem *regs) | |
530 | { | |
531 | memcpy_toio(regs->Y_HCOEFS, y_static_hcoeffs, sizeof(y_static_hcoeffs)); | |
532 | memcpy_toio(regs->UV_HCOEFS, uv_static_hcoeffs, | |
533 | sizeof(uv_static_hcoeffs)); | |
534 | } | |
535 | ||
536 | static bool update_scaling_factors(struct intel_overlay *overlay, | |
537 | struct overlay_registers __iomem *regs, | |
538 | struct put_image_params *params) | |
539 | { | |
540 | /* fixed point with a 12 bit shift */ | |
541 | u32 xscale, yscale, xscale_UV, yscale_UV; | |
542 | #define FP_SHIFT 12 | |
543 | #define FRACT_MASK 0xfff | |
544 | bool scale_changed = false; | |
545 | int uv_hscale = uv_hsubsampling(params->format); | |
546 | int uv_vscale = uv_vsubsampling(params->format); | |
547 | ||
548 | if (params->dst_w > 1) | |
549 | xscale = ((params->src_scan_w - 1) << FP_SHIFT) | |
550 | /(params->dst_w); | |
551 | else | |
552 | xscale = 1 << FP_SHIFT; | |
553 | ||
554 | if (params->dst_h > 1) | |
555 | yscale = ((params->src_scan_h - 1) << FP_SHIFT) | |
556 | /(params->dst_h); | |
557 | else | |
558 | yscale = 1 << FP_SHIFT; | |
559 | ||
560 | /*if (params->format & I915_OVERLAY_YUV_PLANAR) {*/ | |
561 | xscale_UV = xscale/uv_hscale; | |
562 | yscale_UV = yscale/uv_vscale; | |
563 | /* make the Y scale to UV scale ratio an exact multiply */ | |
564 | xscale = xscale_UV * uv_hscale; | |
565 | yscale = yscale_UV * uv_vscale; | |
566 | /*} else { | |
567 | xscale_UV = 0; | |
568 | yscale_UV = 0; | |
569 | }*/ | |
570 | ||
571 | if (xscale != overlay->old_xscale || yscale != overlay->old_yscale) | |
572 | scale_changed = true; | |
573 | overlay->old_xscale = xscale; | |
574 | overlay->old_yscale = yscale; | |
575 | ||
576 | iowrite32(((yscale & FRACT_MASK) << 20) | | |
577 | ((xscale >> FP_SHIFT) << 16) | | |
578 | ((xscale & FRACT_MASK) << 3), | |
579 | ®s->YRGBSCALE); | |
580 | ||
581 | iowrite32(((yscale_UV & FRACT_MASK) << 20) | | |
582 | ((xscale_UV >> FP_SHIFT) << 16) | | |
583 | ((xscale_UV & FRACT_MASK) << 3), | |
584 | ®s->UVSCALE); | |
585 | ||
586 | iowrite32((((yscale >> FP_SHIFT) << 16) | | |
587 | ((yscale_UV >> FP_SHIFT) << 0)), | |
588 | ®s->UVSCALEV); | |
589 | ||
590 | if (scale_changed) | |
591 | update_polyphase_filter(regs); | |
592 | ||
593 | return scale_changed; | |
594 | } | |
595 | ||
596 | static void update_colorkey(struct intel_overlay *overlay, | |
597 | struct overlay_registers __iomem *regs) | |
598 | { | |
599 | u32 key = overlay->color_key; | |
600 | ||
601 | switch (overlay->crtc->base.fb->bits_per_pixel) { | |
602 | case 8: | |
603 | iowrite32(0, ®s->DCLRKV); | |
604 | iowrite32(CLK_RGB8I_MASK | DST_KEY_ENABLE, ®s->DCLRKM); | |
605 | break; | |
606 | ||
607 | case 16: | |
608 | if (overlay->crtc->base.fb->depth == 15) { | |
609 | iowrite32(RGB15_TO_COLORKEY(key), ®s->DCLRKV); | |
610 | iowrite32(CLK_RGB15_MASK | DST_KEY_ENABLE, | |
611 | ®s->DCLRKM); | |
612 | } else { | |
613 | iowrite32(RGB16_TO_COLORKEY(key), ®s->DCLRKV); | |
614 | iowrite32(CLK_RGB16_MASK | DST_KEY_ENABLE, | |
615 | ®s->DCLRKM); | |
616 | } | |
617 | break; | |
618 | ||
619 | case 24: | |
620 | case 32: | |
621 | iowrite32(key, ®s->DCLRKV); | |
622 | iowrite32(CLK_RGB24_MASK | DST_KEY_ENABLE, ®s->DCLRKM); | |
623 | break; | |
624 | } | |
625 | } | |
626 | ||
627 | static u32 overlay_cmd_reg(struct put_image_params *params) | |
628 | { | |
629 | u32 cmd = OCMD_ENABLE | OCMD_BUF_TYPE_FRAME | OCMD_BUFFER0; | |
630 | ||
631 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
632 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
633 | case I915_OVERLAY_YUV422: | |
634 | cmd |= OCMD_YUV_422_PLANAR; | |
635 | break; | |
636 | case I915_OVERLAY_YUV420: | |
637 | cmd |= OCMD_YUV_420_PLANAR; | |
638 | break; | |
639 | case I915_OVERLAY_YUV411: | |
640 | case I915_OVERLAY_YUV410: | |
641 | cmd |= OCMD_YUV_410_PLANAR; | |
642 | break; | |
643 | } | |
644 | } else { /* YUV packed */ | |
645 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
646 | case I915_OVERLAY_YUV422: | |
647 | cmd |= OCMD_YUV_422_PACKED; | |
648 | break; | |
649 | case I915_OVERLAY_YUV411: | |
650 | cmd |= OCMD_YUV_411_PACKED; | |
651 | break; | |
652 | } | |
653 | ||
654 | switch (params->format & I915_OVERLAY_SWAP_MASK) { | |
655 | case I915_OVERLAY_NO_SWAP: | |
656 | break; | |
657 | case I915_OVERLAY_UV_SWAP: | |
658 | cmd |= OCMD_UV_SWAP; | |
659 | break; | |
660 | case I915_OVERLAY_Y_SWAP: | |
661 | cmd |= OCMD_Y_SWAP; | |
662 | break; | |
663 | case I915_OVERLAY_Y_AND_UV_SWAP: | |
664 | cmd |= OCMD_Y_AND_UV_SWAP; | |
665 | break; | |
666 | } | |
667 | } | |
668 | ||
669 | return cmd; | |
670 | } | |
671 | ||
672 | static int intel_overlay_do_put_image(struct intel_overlay *overlay, | |
673 | struct drm_i915_gem_object *new_bo, | |
674 | struct put_image_params *params) | |
675 | { | |
676 | int ret, tmp_width; | |
677 | struct overlay_registers __iomem *regs; | |
678 | bool scale_changed = false; | |
679 | struct drm_device *dev = overlay->dev; | |
680 | u32 swidth, swidthsw, sheight, ostride; | |
681 | ||
682 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
683 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
684 | BUG_ON(!overlay); | |
685 | ||
686 | ret = intel_overlay_release_old_vid(overlay); | |
687 | if (ret != 0) | |
688 | return ret; | |
689 | ||
690 | ret = i915_gem_object_pin_to_display_plane(new_bo, 0, NULL); | |
691 | if (ret != 0) | |
692 | return ret; | |
693 | ||
694 | ret = i915_gem_object_put_fence(new_bo); | |
695 | if (ret) | |
696 | goto out_unpin; | |
697 | ||
698 | if (!overlay->active) { | |
699 | u32 oconfig; | |
700 | regs = intel_overlay_map_regs(overlay); | |
701 | if (!regs) { | |
702 | ret = -ENOMEM; | |
703 | goto out_unpin; | |
704 | } | |
705 | oconfig = OCONF_CC_OUT_8BIT; | |
706 | if (IS_GEN4(overlay->dev)) | |
707 | oconfig |= OCONF_CSC_MODE_BT709; | |
708 | oconfig |= overlay->crtc->pipe == 0 ? | |
709 | OCONF_PIPE_A : OCONF_PIPE_B; | |
710 | iowrite32(oconfig, ®s->OCONFIG); | |
711 | intel_overlay_unmap_regs(overlay, regs); | |
712 | ||
713 | ret = intel_overlay_on(overlay); | |
714 | if (ret != 0) | |
715 | goto out_unpin; | |
716 | } | |
717 | ||
718 | regs = intel_overlay_map_regs(overlay); | |
719 | if (!regs) { | |
720 | ret = -ENOMEM; | |
721 | goto out_unpin; | |
722 | } | |
723 | ||
724 | iowrite32((params->dst_y << 16) | params->dst_x, ®s->DWINPOS); | |
725 | iowrite32((params->dst_h << 16) | params->dst_w, ®s->DWINSZ); | |
726 | ||
727 | if (params->format & I915_OVERLAY_YUV_PACKED) | |
728 | tmp_width = packed_width_bytes(params->format, params->src_w); | |
729 | else | |
730 | tmp_width = params->src_w; | |
731 | ||
732 | swidth = params->src_w; | |
733 | swidthsw = calc_swidthsw(overlay->dev, params->offset_Y, tmp_width); | |
734 | sheight = params->src_h; | |
735 | iowrite32(new_bo->gtt_offset + params->offset_Y, ®s->OBUF_0Y); | |
736 | ostride = params->stride_Y; | |
737 | ||
738 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
739 | int uv_hscale = uv_hsubsampling(params->format); | |
740 | int uv_vscale = uv_vsubsampling(params->format); | |
741 | u32 tmp_U, tmp_V; | |
742 | swidth |= (params->src_w/uv_hscale) << 16; | |
743 | tmp_U = calc_swidthsw(overlay->dev, params->offset_U, | |
744 | params->src_w/uv_hscale); | |
745 | tmp_V = calc_swidthsw(overlay->dev, params->offset_V, | |
746 | params->src_w/uv_hscale); | |
747 | swidthsw |= max_t(u32, tmp_U, tmp_V) << 16; | |
748 | sheight |= (params->src_h/uv_vscale) << 16; | |
749 | iowrite32(new_bo->gtt_offset + params->offset_U, ®s->OBUF_0U); | |
750 | iowrite32(new_bo->gtt_offset + params->offset_V, ®s->OBUF_0V); | |
751 | ostride |= params->stride_UV << 16; | |
752 | } | |
753 | ||
754 | iowrite32(swidth, ®s->SWIDTH); | |
755 | iowrite32(swidthsw, ®s->SWIDTHSW); | |
756 | iowrite32(sheight, ®s->SHEIGHT); | |
757 | iowrite32(ostride, ®s->OSTRIDE); | |
758 | ||
759 | scale_changed = update_scaling_factors(overlay, regs, params); | |
760 | ||
761 | update_colorkey(overlay, regs); | |
762 | ||
763 | iowrite32(overlay_cmd_reg(params), ®s->OCMD); | |
764 | ||
765 | intel_overlay_unmap_regs(overlay, regs); | |
766 | ||
767 | ret = intel_overlay_continue(overlay, scale_changed); | |
768 | if (ret) | |
769 | goto out_unpin; | |
770 | ||
771 | overlay->old_vid_bo = overlay->vid_bo; | |
772 | overlay->vid_bo = new_bo; | |
773 | ||
774 | return 0; | |
775 | ||
776 | out_unpin: | |
777 | i915_gem_object_unpin(new_bo); | |
778 | return ret; | |
779 | } | |
780 | ||
781 | int intel_overlay_switch_off(struct intel_overlay *overlay) | |
782 | { | |
783 | struct overlay_registers __iomem *regs; | |
784 | struct drm_device *dev = overlay->dev; | |
785 | int ret; | |
786 | ||
787 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
788 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
789 | ||
790 | ret = intel_overlay_recover_from_interrupt(overlay); | |
791 | if (ret != 0) | |
792 | return ret; | |
793 | ||
794 | if (!overlay->active) | |
795 | return 0; | |
796 | ||
797 | ret = intel_overlay_release_old_vid(overlay); | |
798 | if (ret != 0) | |
799 | return ret; | |
800 | ||
801 | regs = intel_overlay_map_regs(overlay); | |
802 | iowrite32(0, ®s->OCMD); | |
803 | intel_overlay_unmap_regs(overlay, regs); | |
804 | ||
805 | ret = intel_overlay_off(overlay); | |
806 | if (ret != 0) | |
807 | return ret; | |
808 | ||
809 | intel_overlay_off_tail(overlay); | |
810 | return 0; | |
811 | } | |
812 | ||
813 | static int check_overlay_possible_on_crtc(struct intel_overlay *overlay, | |
814 | struct intel_crtc *crtc) | |
815 | { | |
816 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; | |
817 | ||
818 | if (!crtc->active) | |
819 | return -EINVAL; | |
820 | ||
821 | /* can't use the overlay with double wide pipe */ | |
822 | if (INTEL_INFO(overlay->dev)->gen < 4 && | |
823 | (I915_READ(PIPECONF(crtc->pipe)) & (PIPECONF_DOUBLE_WIDE | PIPECONF_ENABLE)) != PIPECONF_ENABLE) | |
824 | return -EINVAL; | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | static void update_pfit_vscale_ratio(struct intel_overlay *overlay) | |
830 | { | |
831 | struct drm_device *dev = overlay->dev; | |
832 | drm_i915_private_t *dev_priv = dev->dev_private; | |
833 | u32 pfit_control = I915_READ(PFIT_CONTROL); | |
834 | u32 ratio; | |
835 | ||
836 | /* XXX: This is not the same logic as in the xorg driver, but more in | |
837 | * line with the intel documentation for the i965 | |
838 | */ | |
839 | if (INTEL_INFO(dev)->gen >= 4) { | |
840 | /* on i965 use the PGM reg to read out the autoscaler values */ | |
841 | ratio = I915_READ(PFIT_PGM_RATIOS) >> PFIT_VERT_SCALE_SHIFT_965; | |
842 | } else { | |
843 | if (pfit_control & VERT_AUTO_SCALE) | |
844 | ratio = I915_READ(PFIT_AUTO_RATIOS); | |
845 | else | |
846 | ratio = I915_READ(PFIT_PGM_RATIOS); | |
847 | ratio >>= PFIT_VERT_SCALE_SHIFT; | |
848 | } | |
849 | ||
850 | overlay->pfit_vscale_ratio = ratio; | |
851 | } | |
852 | ||
853 | static int check_overlay_dst(struct intel_overlay *overlay, | |
854 | struct drm_intel_overlay_put_image *rec) | |
855 | { | |
856 | struct drm_display_mode *mode = &overlay->crtc->base.mode; | |
857 | ||
858 | if (rec->dst_x < mode->hdisplay && | |
859 | rec->dst_x + rec->dst_width <= mode->hdisplay && | |
860 | rec->dst_y < mode->vdisplay && | |
861 | rec->dst_y + rec->dst_height <= mode->vdisplay) | |
862 | return 0; | |
863 | else | |
864 | return -EINVAL; | |
865 | } | |
866 | ||
867 | static int check_overlay_scaling(struct put_image_params *rec) | |
868 | { | |
869 | u32 tmp; | |
870 | ||
871 | /* downscaling limit is 8.0 */ | |
872 | tmp = ((rec->src_scan_h << 16) / rec->dst_h) >> 16; | |
873 | if (tmp > 7) | |
874 | return -EINVAL; | |
875 | tmp = ((rec->src_scan_w << 16) / rec->dst_w) >> 16; | |
876 | if (tmp > 7) | |
877 | return -EINVAL; | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | static int check_overlay_src(struct drm_device *dev, | |
883 | struct drm_intel_overlay_put_image *rec, | |
884 | struct drm_i915_gem_object *new_bo) | |
885 | { | |
886 | int uv_hscale = uv_hsubsampling(rec->flags); | |
887 | int uv_vscale = uv_vsubsampling(rec->flags); | |
888 | u32 stride_mask; | |
889 | int depth; | |
890 | u32 tmp; | |
891 | ||
892 | /* check src dimensions */ | |
893 | if (IS_845G(dev) || IS_I830(dev)) { | |
894 | if (rec->src_height > IMAGE_MAX_HEIGHT_LEGACY || | |
895 | rec->src_width > IMAGE_MAX_WIDTH_LEGACY) | |
896 | return -EINVAL; | |
897 | } else { | |
898 | if (rec->src_height > IMAGE_MAX_HEIGHT || | |
899 | rec->src_width > IMAGE_MAX_WIDTH) | |
900 | return -EINVAL; | |
901 | } | |
902 | ||
903 | /* better safe than sorry, use 4 as the maximal subsampling ratio */ | |
904 | if (rec->src_height < N_VERT_Y_TAPS*4 || | |
905 | rec->src_width < N_HORIZ_Y_TAPS*4) | |
906 | return -EINVAL; | |
907 | ||
908 | /* check alignment constraints */ | |
909 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { | |
910 | case I915_OVERLAY_RGB: | |
911 | /* not implemented */ | |
912 | return -EINVAL; | |
913 | ||
914 | case I915_OVERLAY_YUV_PACKED: | |
915 | if (uv_vscale != 1) | |
916 | return -EINVAL; | |
917 | ||
918 | depth = packed_depth_bytes(rec->flags); | |
919 | if (depth < 0) | |
920 | return depth; | |
921 | ||
922 | /* ignore UV planes */ | |
923 | rec->stride_UV = 0; | |
924 | rec->offset_U = 0; | |
925 | rec->offset_V = 0; | |
926 | /* check pixel alignment */ | |
927 | if (rec->offset_Y % depth) | |
928 | return -EINVAL; | |
929 | break; | |
930 | ||
931 | case I915_OVERLAY_YUV_PLANAR: | |
932 | if (uv_vscale < 0 || uv_hscale < 0) | |
933 | return -EINVAL; | |
934 | /* no offset restrictions for planar formats */ | |
935 | break; | |
936 | ||
937 | default: | |
938 | return -EINVAL; | |
939 | } | |
940 | ||
941 | if (rec->src_width % uv_hscale) | |
942 | return -EINVAL; | |
943 | ||
944 | /* stride checking */ | |
945 | if (IS_I830(dev) || IS_845G(dev)) | |
946 | stride_mask = 255; | |
947 | else | |
948 | stride_mask = 63; | |
949 | ||
950 | if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask) | |
951 | return -EINVAL; | |
952 | if (IS_GEN4(dev) && rec->stride_Y < 512) | |
953 | return -EINVAL; | |
954 | ||
955 | tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ? | |
956 | 4096 : 8192; | |
957 | if (rec->stride_Y > tmp || rec->stride_UV > 2*1024) | |
958 | return -EINVAL; | |
959 | ||
960 | /* check buffer dimensions */ | |
961 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { | |
962 | case I915_OVERLAY_RGB: | |
963 | case I915_OVERLAY_YUV_PACKED: | |
964 | /* always 4 Y values per depth pixels */ | |
965 | if (packed_width_bytes(rec->flags, rec->src_width) > rec->stride_Y) | |
966 | return -EINVAL; | |
967 | ||
968 | tmp = rec->stride_Y*rec->src_height; | |
969 | if (rec->offset_Y + tmp > new_bo->base.size) | |
970 | return -EINVAL; | |
971 | break; | |
972 | ||
973 | case I915_OVERLAY_YUV_PLANAR: | |
974 | if (rec->src_width > rec->stride_Y) | |
975 | return -EINVAL; | |
976 | if (rec->src_width/uv_hscale > rec->stride_UV) | |
977 | return -EINVAL; | |
978 | ||
979 | tmp = rec->stride_Y * rec->src_height; | |
980 | if (rec->offset_Y + tmp > new_bo->base.size) | |
981 | return -EINVAL; | |
982 | ||
983 | tmp = rec->stride_UV * (rec->src_height / uv_vscale); | |
984 | if (rec->offset_U + tmp > new_bo->base.size || | |
985 | rec->offset_V + tmp > new_bo->base.size) | |
986 | return -EINVAL; | |
987 | break; | |
988 | } | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | /** | |
994 | * Return the pipe currently connected to the panel fitter, | |
995 | * or -1 if the panel fitter is not present or not in use | |
996 | */ | |
997 | static int intel_panel_fitter_pipe(struct drm_device *dev) | |
998 | { | |
999 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1000 | u32 pfit_control; | |
1001 | ||
1002 | /* i830 doesn't have a panel fitter */ | |
1003 | if (IS_I830(dev)) | |
1004 | return -1; | |
1005 | ||
1006 | pfit_control = I915_READ(PFIT_CONTROL); | |
1007 | ||
1008 | /* See if the panel fitter is in use */ | |
1009 | if ((pfit_control & PFIT_ENABLE) == 0) | |
1010 | return -1; | |
1011 | ||
1012 | /* 965 can place panel fitter on either pipe */ | |
1013 | if (IS_GEN4(dev)) | |
1014 | return (pfit_control >> 29) & 0x3; | |
1015 | ||
1016 | /* older chips can only use pipe 1 */ | |
1017 | return 1; | |
1018 | } | |
1019 | ||
1020 | int intel_overlay_put_image(struct drm_device *dev, void *data, | |
1021 | struct drm_file *file_priv) | |
1022 | { | |
1023 | struct drm_intel_overlay_put_image *put_image_rec = data; | |
1024 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1025 | struct intel_overlay *overlay; | |
1026 | struct drm_mode_object *drmmode_obj; | |
1027 | struct intel_crtc *crtc; | |
1028 | struct drm_i915_gem_object *new_bo; | |
1029 | struct put_image_params *params; | |
1030 | int ret; | |
1031 | ||
1032 | /* No need to check for DRIVER_MODESET - we don't set it up then. */ | |
1033 | overlay = dev_priv->overlay; | |
1034 | if (!overlay) { | |
1035 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1036 | return -ENODEV; | |
1037 | } | |
1038 | ||
1039 | if (!(put_image_rec->flags & I915_OVERLAY_ENABLE)) { | |
1040 | mutex_lock(&dev->mode_config.mutex); | |
1041 | mutex_lock(&dev->struct_mutex); | |
1042 | ||
1043 | ret = intel_overlay_switch_off(overlay); | |
1044 | ||
1045 | mutex_unlock(&dev->struct_mutex); | |
1046 | mutex_unlock(&dev->mode_config.mutex); | |
1047 | ||
1048 | return ret; | |
1049 | } | |
1050 | ||
1051 | params = kmalloc(sizeof(struct put_image_params), GFP_KERNEL); | |
1052 | if (!params) | |
1053 | return -ENOMEM; | |
1054 | ||
1055 | drmmode_obj = drm_mode_object_find(dev, put_image_rec->crtc_id, | |
1056 | DRM_MODE_OBJECT_CRTC); | |
1057 | if (!drmmode_obj) { | |
1058 | ret = -ENOENT; | |
1059 | goto out_free; | |
1060 | } | |
1061 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); | |
1062 | ||
1063 | new_bo = to_intel_bo(drm_gem_object_lookup(dev, file_priv, | |
1064 | put_image_rec->bo_handle)); | |
1065 | if (&new_bo->base == NULL) { | |
1066 | ret = -ENOENT; | |
1067 | goto out_free; | |
1068 | } | |
1069 | ||
1070 | mutex_lock(&dev->mode_config.mutex); | |
1071 | mutex_lock(&dev->struct_mutex); | |
1072 | ||
1073 | if (new_bo->tiling_mode) { | |
1074 | DRM_ERROR("buffer used for overlay image can not be tiled\n"); | |
1075 | ret = -EINVAL; | |
1076 | goto out_unlock; | |
1077 | } | |
1078 | ||
1079 | ret = intel_overlay_recover_from_interrupt(overlay); | |
1080 | if (ret != 0) | |
1081 | goto out_unlock; | |
1082 | ||
1083 | if (overlay->crtc != crtc) { | |
1084 | struct drm_display_mode *mode = &crtc->base.mode; | |
1085 | ret = intel_overlay_switch_off(overlay); | |
1086 | if (ret != 0) | |
1087 | goto out_unlock; | |
1088 | ||
1089 | ret = check_overlay_possible_on_crtc(overlay, crtc); | |
1090 | if (ret != 0) | |
1091 | goto out_unlock; | |
1092 | ||
1093 | overlay->crtc = crtc; | |
1094 | crtc->overlay = overlay; | |
1095 | ||
1096 | /* line too wide, i.e. one-line-mode */ | |
1097 | if (mode->hdisplay > 1024 && | |
1098 | intel_panel_fitter_pipe(dev) == crtc->pipe) { | |
1099 | overlay->pfit_active = 1; | |
1100 | update_pfit_vscale_ratio(overlay); | |
1101 | } else | |
1102 | overlay->pfit_active = 0; | |
1103 | } | |
1104 | ||
1105 | ret = check_overlay_dst(overlay, put_image_rec); | |
1106 | if (ret != 0) | |
1107 | goto out_unlock; | |
1108 | ||
1109 | if (overlay->pfit_active) { | |
1110 | params->dst_y = ((((u32)put_image_rec->dst_y) << 12) / | |
1111 | overlay->pfit_vscale_ratio); | |
1112 | /* shifting right rounds downwards, so add 1 */ | |
1113 | params->dst_h = ((((u32)put_image_rec->dst_height) << 12) / | |
1114 | overlay->pfit_vscale_ratio) + 1; | |
1115 | } else { | |
1116 | params->dst_y = put_image_rec->dst_y; | |
1117 | params->dst_h = put_image_rec->dst_height; | |
1118 | } | |
1119 | params->dst_x = put_image_rec->dst_x; | |
1120 | params->dst_w = put_image_rec->dst_width; | |
1121 | ||
1122 | params->src_w = put_image_rec->src_width; | |
1123 | params->src_h = put_image_rec->src_height; | |
1124 | params->src_scan_w = put_image_rec->src_scan_width; | |
1125 | params->src_scan_h = put_image_rec->src_scan_height; | |
1126 | if (params->src_scan_h > params->src_h || | |
1127 | params->src_scan_w > params->src_w) { | |
1128 | ret = -EINVAL; | |
1129 | goto out_unlock; | |
1130 | } | |
1131 | ||
1132 | ret = check_overlay_src(dev, put_image_rec, new_bo); | |
1133 | if (ret != 0) | |
1134 | goto out_unlock; | |
1135 | params->format = put_image_rec->flags & ~I915_OVERLAY_FLAGS_MASK; | |
1136 | params->stride_Y = put_image_rec->stride_Y; | |
1137 | params->stride_UV = put_image_rec->stride_UV; | |
1138 | params->offset_Y = put_image_rec->offset_Y; | |
1139 | params->offset_U = put_image_rec->offset_U; | |
1140 | params->offset_V = put_image_rec->offset_V; | |
1141 | ||
1142 | /* Check scaling after src size to prevent a divide-by-zero. */ | |
1143 | ret = check_overlay_scaling(params); | |
1144 | if (ret != 0) | |
1145 | goto out_unlock; | |
1146 | ||
1147 | ret = intel_overlay_do_put_image(overlay, new_bo, params); | |
1148 | if (ret != 0) | |
1149 | goto out_unlock; | |
1150 | ||
1151 | mutex_unlock(&dev->struct_mutex); | |
1152 | mutex_unlock(&dev->mode_config.mutex); | |
1153 | ||
1154 | kfree(params); | |
1155 | ||
1156 | return 0; | |
1157 | ||
1158 | out_unlock: | |
1159 | mutex_unlock(&dev->struct_mutex); | |
1160 | mutex_unlock(&dev->mode_config.mutex); | |
1161 | drm_gem_object_unreference_unlocked(&new_bo->base); | |
1162 | out_free: | |
1163 | kfree(params); | |
1164 | ||
1165 | return ret; | |
1166 | } | |
1167 | ||
1168 | static void update_reg_attrs(struct intel_overlay *overlay, | |
1169 | struct overlay_registers __iomem *regs) | |
1170 | { | |
1171 | iowrite32((overlay->contrast << 18) | (overlay->brightness & 0xff), | |
1172 | ®s->OCLRC0); | |
1173 | iowrite32(overlay->saturation, ®s->OCLRC1); | |
1174 | } | |
1175 | ||
1176 | static bool check_gamma_bounds(u32 gamma1, u32 gamma2) | |
1177 | { | |
1178 | int i; | |
1179 | ||
1180 | if (gamma1 & 0xff000000 || gamma2 & 0xff000000) | |
1181 | return false; | |
1182 | ||
1183 | for (i = 0; i < 3; i++) { | |
1184 | if (((gamma1 >> i*8) & 0xff) >= ((gamma2 >> i*8) & 0xff)) | |
1185 | return false; | |
1186 | } | |
1187 | ||
1188 | return true; | |
1189 | } | |
1190 | ||
1191 | static bool check_gamma5_errata(u32 gamma5) | |
1192 | { | |
1193 | int i; | |
1194 | ||
1195 | for (i = 0; i < 3; i++) { | |
1196 | if (((gamma5 >> i*8) & 0xff) == 0x80) | |
1197 | return false; | |
1198 | } | |
1199 | ||
1200 | return true; | |
1201 | } | |
1202 | ||
1203 | static int check_gamma(struct drm_intel_overlay_attrs *attrs) | |
1204 | { | |
1205 | if (!check_gamma_bounds(0, attrs->gamma0) || | |
1206 | !check_gamma_bounds(attrs->gamma0, attrs->gamma1) || | |
1207 | !check_gamma_bounds(attrs->gamma1, attrs->gamma2) || | |
1208 | !check_gamma_bounds(attrs->gamma2, attrs->gamma3) || | |
1209 | !check_gamma_bounds(attrs->gamma3, attrs->gamma4) || | |
1210 | !check_gamma_bounds(attrs->gamma4, attrs->gamma5) || | |
1211 | !check_gamma_bounds(attrs->gamma5, 0x00ffffff)) | |
1212 | return -EINVAL; | |
1213 | ||
1214 | if (!check_gamma5_errata(attrs->gamma5)) | |
1215 | return -EINVAL; | |
1216 | ||
1217 | return 0; | |
1218 | } | |
1219 | ||
1220 | int intel_overlay_attrs(struct drm_device *dev, void *data, | |
1221 | struct drm_file *file_priv) | |
1222 | { | |
1223 | struct drm_intel_overlay_attrs *attrs = data; | |
1224 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1225 | struct intel_overlay *overlay; | |
1226 | struct overlay_registers __iomem *regs; | |
1227 | int ret; | |
1228 | ||
1229 | /* No need to check for DRIVER_MODESET - we don't set it up then. */ | |
1230 | overlay = dev_priv->overlay; | |
1231 | if (!overlay) { | |
1232 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1233 | return -ENODEV; | |
1234 | } | |
1235 | ||
1236 | mutex_lock(&dev->mode_config.mutex); | |
1237 | mutex_lock(&dev->struct_mutex); | |
1238 | ||
1239 | ret = -EINVAL; | |
1240 | if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) { | |
1241 | attrs->color_key = overlay->color_key; | |
1242 | attrs->brightness = overlay->brightness; | |
1243 | attrs->contrast = overlay->contrast; | |
1244 | attrs->saturation = overlay->saturation; | |
1245 | ||
1246 | if (!IS_GEN2(dev)) { | |
1247 | attrs->gamma0 = I915_READ(OGAMC0); | |
1248 | attrs->gamma1 = I915_READ(OGAMC1); | |
1249 | attrs->gamma2 = I915_READ(OGAMC2); | |
1250 | attrs->gamma3 = I915_READ(OGAMC3); | |
1251 | attrs->gamma4 = I915_READ(OGAMC4); | |
1252 | attrs->gamma5 = I915_READ(OGAMC5); | |
1253 | } | |
1254 | } else { | |
1255 | if (attrs->brightness < -128 || attrs->brightness > 127) | |
1256 | goto out_unlock; | |
1257 | if (attrs->contrast > 255) | |
1258 | goto out_unlock; | |
1259 | if (attrs->saturation > 1023) | |
1260 | goto out_unlock; | |
1261 | ||
1262 | overlay->color_key = attrs->color_key; | |
1263 | overlay->brightness = attrs->brightness; | |
1264 | overlay->contrast = attrs->contrast; | |
1265 | overlay->saturation = attrs->saturation; | |
1266 | ||
1267 | regs = intel_overlay_map_regs(overlay); | |
1268 | if (!regs) { | |
1269 | ret = -ENOMEM; | |
1270 | goto out_unlock; | |
1271 | } | |
1272 | ||
1273 | update_reg_attrs(overlay, regs); | |
1274 | ||
1275 | intel_overlay_unmap_regs(overlay, regs); | |
1276 | ||
1277 | if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) { | |
1278 | if (IS_GEN2(dev)) | |
1279 | goto out_unlock; | |
1280 | ||
1281 | if (overlay->active) { | |
1282 | ret = -EBUSY; | |
1283 | goto out_unlock; | |
1284 | } | |
1285 | ||
1286 | ret = check_gamma(attrs); | |
1287 | if (ret) | |
1288 | goto out_unlock; | |
1289 | ||
1290 | I915_WRITE(OGAMC0, attrs->gamma0); | |
1291 | I915_WRITE(OGAMC1, attrs->gamma1); | |
1292 | I915_WRITE(OGAMC2, attrs->gamma2); | |
1293 | I915_WRITE(OGAMC3, attrs->gamma3); | |
1294 | I915_WRITE(OGAMC4, attrs->gamma4); | |
1295 | I915_WRITE(OGAMC5, attrs->gamma5); | |
1296 | } | |
1297 | } | |
1298 | ||
1299 | ret = 0; | |
1300 | out_unlock: | |
1301 | mutex_unlock(&dev->struct_mutex); | |
1302 | mutex_unlock(&dev->mode_config.mutex); | |
1303 | ||
1304 | return ret; | |
1305 | } | |
1306 | ||
1307 | void intel_setup_overlay(struct drm_device *dev) | |
1308 | { | |
1309 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1310 | struct intel_overlay *overlay; | |
1311 | struct drm_i915_gem_object *reg_bo; | |
1312 | struct overlay_registers __iomem *regs; | |
1313 | int ret; | |
1314 | ||
1315 | if (!HAS_OVERLAY(dev)) | |
1316 | return; | |
1317 | ||
1318 | overlay = kzalloc(sizeof(struct intel_overlay), GFP_KERNEL); | |
1319 | if (!overlay) | |
1320 | return; | |
1321 | ||
1322 | mutex_lock(&dev->struct_mutex); | |
1323 | if (WARN_ON(dev_priv->overlay)) | |
1324 | goto out_free; | |
1325 | ||
1326 | overlay->dev = dev; | |
1327 | ||
1328 | reg_bo = i915_gem_alloc_object(dev, PAGE_SIZE); | |
1329 | if (!reg_bo) | |
1330 | goto out_free; | |
1331 | overlay->reg_bo = reg_bo; | |
1332 | ||
1333 | if (OVERLAY_NEEDS_PHYSICAL(dev)) { | |
1334 | ret = i915_gem_attach_phys_object(dev, reg_bo, | |
1335 | I915_GEM_PHYS_OVERLAY_REGS, | |
1336 | PAGE_SIZE); | |
1337 | if (ret) { | |
1338 | DRM_ERROR("failed to attach phys overlay regs\n"); | |
1339 | goto out_free_bo; | |
1340 | } | |
1341 | overlay->flip_addr = reg_bo->phys_obj->handle->busaddr; | |
1342 | } else { | |
1343 | ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true, false); | |
1344 | if (ret) { | |
1345 | DRM_ERROR("failed to pin overlay register bo\n"); | |
1346 | goto out_free_bo; | |
1347 | } | |
1348 | overlay->flip_addr = reg_bo->gtt_offset; | |
1349 | ||
1350 | ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); | |
1351 | if (ret) { | |
1352 | DRM_ERROR("failed to move overlay register bo into the GTT\n"); | |
1353 | goto out_unpin_bo; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | /* init all values */ | |
1358 | overlay->color_key = 0x0101fe; | |
1359 | overlay->brightness = -19; | |
1360 | overlay->contrast = 75; | |
1361 | overlay->saturation = 146; | |
1362 | ||
1363 | regs = intel_overlay_map_regs(overlay); | |
1364 | if (!regs) | |
1365 | goto out_unpin_bo; | |
1366 | ||
1367 | memset_io(regs, 0, sizeof(struct overlay_registers)); | |
1368 | update_polyphase_filter(regs); | |
1369 | update_reg_attrs(overlay, regs); | |
1370 | ||
1371 | intel_overlay_unmap_regs(overlay, regs); | |
1372 | ||
1373 | dev_priv->overlay = overlay; | |
1374 | mutex_unlock(&dev->struct_mutex); | |
1375 | DRM_INFO("initialized overlay support\n"); | |
1376 | return; | |
1377 | ||
1378 | out_unpin_bo: | |
1379 | if (!OVERLAY_NEEDS_PHYSICAL(dev)) | |
1380 | i915_gem_object_unpin(reg_bo); | |
1381 | out_free_bo: | |
1382 | drm_gem_object_unreference(®_bo->base); | |
1383 | out_free: | |
1384 | mutex_unlock(&dev->struct_mutex); | |
1385 | kfree(overlay); | |
1386 | return; | |
1387 | } | |
1388 | ||
1389 | void intel_cleanup_overlay(struct drm_device *dev) | |
1390 | { | |
1391 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1392 | ||
1393 | if (!dev_priv->overlay) | |
1394 | return; | |
1395 | ||
1396 | /* The bo's should be free'd by the generic code already. | |
1397 | * Furthermore modesetting teardown happens beforehand so the | |
1398 | * hardware should be off already */ | |
1399 | BUG_ON(dev_priv->overlay->active); | |
1400 | ||
1401 | drm_gem_object_unreference_unlocked(&dev_priv->overlay->reg_bo->base); | |
1402 | kfree(dev_priv->overlay); | |
1403 | } | |
1404 | ||
1405 | #ifdef CONFIG_DEBUG_FS | |
1406 | #include <linux/seq_file.h> | |
1407 | ||
1408 | struct intel_overlay_error_state { | |
1409 | struct overlay_registers regs; | |
1410 | unsigned long base; | |
1411 | u32 dovsta; | |
1412 | u32 isr; | |
1413 | }; | |
1414 | ||
1415 | static struct overlay_registers __iomem * | |
1416 | intel_overlay_map_regs_atomic(struct intel_overlay *overlay) | |
1417 | { | |
1418 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; | |
1419 | struct overlay_registers __iomem *regs; | |
1420 | ||
1421 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
1422 | /* Cast to make sparse happy, but it's wc memory anyway, so | |
1423 | * equivalent to the wc io mapping on X86. */ | |
1424 | regs = (struct overlay_registers __iomem *) | |
1425 | overlay->reg_bo->phys_obj->handle->vaddr; | |
1426 | else | |
1427 | regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping, | |
1428 | overlay->reg_bo->gtt_offset); | |
1429 | ||
1430 | return regs; | |
1431 | } | |
1432 | ||
1433 | static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay, | |
1434 | struct overlay_registers __iomem *regs) | |
1435 | { | |
1436 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
1437 | io_mapping_unmap_atomic(regs); | |
1438 | } | |
1439 | ||
1440 | ||
1441 | struct intel_overlay_error_state * | |
1442 | intel_overlay_capture_error_state(struct drm_device *dev) | |
1443 | { | |
1444 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1445 | struct intel_overlay *overlay = dev_priv->overlay; | |
1446 | struct intel_overlay_error_state *error; | |
1447 | struct overlay_registers __iomem *regs; | |
1448 | ||
1449 | if (!overlay || !overlay->active) | |
1450 | return NULL; | |
1451 | ||
1452 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
1453 | if (error == NULL) | |
1454 | return NULL; | |
1455 | ||
1456 | error->dovsta = I915_READ(DOVSTA); | |
1457 | error->isr = I915_READ(ISR); | |
1458 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
1459 | error->base = (__force long)overlay->reg_bo->phys_obj->handle->vaddr; | |
1460 | else | |
1461 | error->base = overlay->reg_bo->gtt_offset; | |
1462 | ||
1463 | regs = intel_overlay_map_regs_atomic(overlay); | |
1464 | if (!regs) | |
1465 | goto err; | |
1466 | ||
1467 | memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); | |
1468 | intel_overlay_unmap_regs_atomic(overlay, regs); | |
1469 | ||
1470 | return error; | |
1471 | ||
1472 | err: | |
1473 | kfree(error); | |
1474 | return NULL; | |
1475 | } | |
1476 | ||
1477 | void | |
1478 | intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error) | |
1479 | { | |
1480 | seq_printf(m, "Overlay, status: 0x%08x, interrupt: 0x%08x\n", | |
1481 | error->dovsta, error->isr); | |
1482 | seq_printf(m, " Register file at 0x%08lx:\n", | |
1483 | error->base); | |
1484 | ||
1485 | #define P(x) seq_printf(m, " " #x ": 0x%08x\n", error->regs.x) | |
1486 | P(OBUF_0Y); | |
1487 | P(OBUF_1Y); | |
1488 | P(OBUF_0U); | |
1489 | P(OBUF_0V); | |
1490 | P(OBUF_1U); | |
1491 | P(OBUF_1V); | |
1492 | P(OSTRIDE); | |
1493 | P(YRGB_VPH); | |
1494 | P(UV_VPH); | |
1495 | P(HORZ_PH); | |
1496 | P(INIT_PHS); | |
1497 | P(DWINPOS); | |
1498 | P(DWINSZ); | |
1499 | P(SWIDTH); | |
1500 | P(SWIDTHSW); | |
1501 | P(SHEIGHT); | |
1502 | P(YRGBSCALE); | |
1503 | P(UVSCALE); | |
1504 | P(OCLRC0); | |
1505 | P(OCLRC1); | |
1506 | P(DCLRKV); | |
1507 | P(DCLRKM); | |
1508 | P(SCLRKVH); | |
1509 | P(SCLRKVL); | |
1510 | P(SCLRKEN); | |
1511 | P(OCONFIG); | |
1512 | P(OCMD); | |
1513 | P(OSTART_0Y); | |
1514 | P(OSTART_1Y); | |
1515 | P(OSTART_0U); | |
1516 | P(OSTART_0V); | |
1517 | P(OSTART_1U); | |
1518 | P(OSTART_1V); | |
1519 | P(OTILEOFF_0Y); | |
1520 | P(OTILEOFF_1Y); | |
1521 | P(OTILEOFF_0U); | |
1522 | P(OTILEOFF_0V); | |
1523 | P(OTILEOFF_1U); | |
1524 | P(OTILEOFF_1V); | |
1525 | P(FASTHSCALE); | |
1526 | P(UVSCALEV); | |
1527 | #undef P | |
1528 | } | |
1529 | #endif |