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02e792fb DV |
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 "drmP.h" | |
29 | #include "drm.h" | |
30 | #include "i915_drm.h" | |
31 | #include "i915_drv.h" | |
32 | #include "i915_reg.h" | |
33 | #include "intel_drv.h" | |
34 | ||
35 | /* Limits for overlay size. According to intel doc, the real limits are: | |
36 | * Y width: 4095, UV width (planar): 2047, Y height: 2047, | |
37 | * UV width (planar): * 1023. But the xorg thinks 2048 for height and width. Use | |
38 | * the mininum of both. */ | |
39 | #define IMAGE_MAX_WIDTH 2048 | |
40 | #define IMAGE_MAX_HEIGHT 2046 /* 2 * 1023 */ | |
41 | /* on 830 and 845 these large limits result in the card hanging */ | |
42 | #define IMAGE_MAX_WIDTH_LEGACY 1024 | |
43 | #define IMAGE_MAX_HEIGHT_LEGACY 1088 | |
44 | ||
45 | /* overlay register definitions */ | |
46 | /* OCMD register */ | |
47 | #define OCMD_TILED_SURFACE (0x1<<19) | |
48 | #define OCMD_MIRROR_MASK (0x3<<17) | |
49 | #define OCMD_MIRROR_MODE (0x3<<17) | |
50 | #define OCMD_MIRROR_HORIZONTAL (0x1<<17) | |
51 | #define OCMD_MIRROR_VERTICAL (0x2<<17) | |
52 | #define OCMD_MIRROR_BOTH (0x3<<17) | |
53 | #define OCMD_BYTEORDER_MASK (0x3<<14) /* zero for YUYV or FOURCC YUY2 */ | |
54 | #define OCMD_UV_SWAP (0x1<<14) /* YVYU */ | |
55 | #define OCMD_Y_SWAP (0x2<<14) /* UYVY or FOURCC UYVY */ | |
56 | #define OCMD_Y_AND_UV_SWAP (0x3<<14) /* VYUY */ | |
57 | #define OCMD_SOURCE_FORMAT_MASK (0xf<<10) | |
58 | #define OCMD_RGB_888 (0x1<<10) /* not in i965 Intel docs */ | |
59 | #define OCMD_RGB_555 (0x2<<10) /* not in i965 Intel docs */ | |
60 | #define OCMD_RGB_565 (0x3<<10) /* not in i965 Intel docs */ | |
61 | #define OCMD_YUV_422_PACKED (0x8<<10) | |
62 | #define OCMD_YUV_411_PACKED (0x9<<10) /* not in i965 Intel docs */ | |
63 | #define OCMD_YUV_420_PLANAR (0xc<<10) | |
64 | #define OCMD_YUV_422_PLANAR (0xd<<10) | |
65 | #define OCMD_YUV_410_PLANAR (0xe<<10) /* also 411 */ | |
66 | #define OCMD_TVSYNCFLIP_PARITY (0x1<<9) | |
67 | #define OCMD_TVSYNCFLIP_ENABLE (0x1<<7) | |
d7961364 | 68 | #define OCMD_BUF_TYPE_MASK (0x1<<5) |
02e792fb DV |
69 | #define OCMD_BUF_TYPE_FRAME (0x0<<5) |
70 | #define OCMD_BUF_TYPE_FIELD (0x1<<5) | |
71 | #define OCMD_TEST_MODE (0x1<<4) | |
72 | #define OCMD_BUFFER_SELECT (0x3<<2) | |
73 | #define OCMD_BUFFER0 (0x0<<2) | |
74 | #define OCMD_BUFFER1 (0x1<<2) | |
75 | #define OCMD_FIELD_SELECT (0x1<<2) | |
76 | #define OCMD_FIELD0 (0x0<<1) | |
77 | #define OCMD_FIELD1 (0x1<<1) | |
78 | #define OCMD_ENABLE (0x1<<0) | |
79 | ||
80 | /* OCONFIG register */ | |
81 | #define OCONF_PIPE_MASK (0x1<<18) | |
82 | #define OCONF_PIPE_A (0x0<<18) | |
83 | #define OCONF_PIPE_B (0x1<<18) | |
84 | #define OCONF_GAMMA2_ENABLE (0x1<<16) | |
85 | #define OCONF_CSC_MODE_BT601 (0x0<<5) | |
86 | #define OCONF_CSC_MODE_BT709 (0x1<<5) | |
87 | #define OCONF_CSC_BYPASS (0x1<<4) | |
88 | #define OCONF_CC_OUT_8BIT (0x1<<3) | |
89 | #define OCONF_TEST_MODE (0x1<<2) | |
90 | #define OCONF_THREE_LINE_BUFFER (0x1<<0) | |
91 | #define OCONF_TWO_LINE_BUFFER (0x0<<0) | |
92 | ||
93 | /* DCLRKM (dst-key) register */ | |
94 | #define DST_KEY_ENABLE (0x1<<31) | |
95 | #define CLK_RGB24_MASK 0x0 | |
96 | #define CLK_RGB16_MASK 0x070307 | |
97 | #define CLK_RGB15_MASK 0x070707 | |
98 | #define CLK_RGB8I_MASK 0xffffff | |
99 | ||
100 | #define RGB16_TO_COLORKEY(c) \ | |
101 | (((c & 0xF800) << 8) | ((c & 0x07E0) << 5) | ((c & 0x001F) << 3)) | |
102 | #define RGB15_TO_COLORKEY(c) \ | |
103 | (((c & 0x7c00) << 9) | ((c & 0x03E0) << 6) | ((c & 0x001F) << 3)) | |
104 | ||
105 | /* overlay flip addr flag */ | |
106 | #define OFC_UPDATE 0x1 | |
107 | ||
108 | /* polyphase filter coefficients */ | |
109 | #define N_HORIZ_Y_TAPS 5 | |
110 | #define N_VERT_Y_TAPS 3 | |
111 | #define N_HORIZ_UV_TAPS 3 | |
112 | #define N_VERT_UV_TAPS 3 | |
113 | #define N_PHASES 17 | |
114 | #define MAX_TAPS 5 | |
115 | ||
116 | /* memory bufferd overlay registers */ | |
117 | struct overlay_registers { | |
0206e353 AJ |
118 | u32 OBUF_0Y; |
119 | u32 OBUF_1Y; | |
120 | u32 OBUF_0U; | |
121 | u32 OBUF_0V; | |
122 | u32 OBUF_1U; | |
123 | u32 OBUF_1V; | |
124 | u32 OSTRIDE; | |
125 | u32 YRGB_VPH; | |
126 | u32 UV_VPH; | |
127 | u32 HORZ_PH; | |
128 | u32 INIT_PHS; | |
129 | u32 DWINPOS; | |
130 | u32 DWINSZ; | |
131 | u32 SWIDTH; | |
132 | u32 SWIDTHSW; | |
133 | u32 SHEIGHT; | |
134 | u32 YRGBSCALE; | |
135 | u32 UVSCALE; | |
136 | u32 OCLRC0; | |
137 | u32 OCLRC1; | |
138 | u32 DCLRKV; | |
139 | u32 DCLRKM; | |
140 | u32 SCLRKVH; | |
141 | u32 SCLRKVL; | |
142 | u32 SCLRKEN; | |
143 | u32 OCONFIG; | |
144 | u32 OCMD; | |
145 | u32 RESERVED1; /* 0x6C */ | |
146 | u32 OSTART_0Y; | |
147 | u32 OSTART_1Y; | |
148 | u32 OSTART_0U; | |
149 | u32 OSTART_0V; | |
150 | u32 OSTART_1U; | |
151 | u32 OSTART_1V; | |
152 | u32 OTILEOFF_0Y; | |
153 | u32 OTILEOFF_1Y; | |
154 | u32 OTILEOFF_0U; | |
155 | u32 OTILEOFF_0V; | |
156 | u32 OTILEOFF_1U; | |
157 | u32 OTILEOFF_1V; | |
158 | u32 FASTHSCALE; /* 0xA0 */ | |
159 | u32 UVSCALEV; /* 0xA4 */ | |
160 | u32 RESERVEDC[(0x200 - 0xA8) / 4]; /* 0xA8 - 0x1FC */ | |
161 | u16 Y_VCOEFS[N_VERT_Y_TAPS * N_PHASES]; /* 0x200 */ | |
162 | u16 RESERVEDD[0x100 / 2 - N_VERT_Y_TAPS * N_PHASES]; | |
163 | u16 Y_HCOEFS[N_HORIZ_Y_TAPS * N_PHASES]; /* 0x300 */ | |
164 | u16 RESERVEDE[0x200 / 2 - N_HORIZ_Y_TAPS * N_PHASES]; | |
165 | u16 UV_VCOEFS[N_VERT_UV_TAPS * N_PHASES]; /* 0x500 */ | |
166 | u16 RESERVEDF[0x100 / 2 - N_VERT_UV_TAPS * N_PHASES]; | |
167 | u16 UV_HCOEFS[N_HORIZ_UV_TAPS * N_PHASES]; /* 0x600 */ | |
168 | u16 RESERVEDG[0x100 / 2 - N_HORIZ_UV_TAPS * N_PHASES]; | |
02e792fb DV |
169 | }; |
170 | ||
23f09ce3 CW |
171 | struct intel_overlay { |
172 | struct drm_device *dev; | |
173 | struct intel_crtc *crtc; | |
174 | struct drm_i915_gem_object *vid_bo; | |
175 | struct drm_i915_gem_object *old_vid_bo; | |
176 | int active; | |
177 | int pfit_active; | |
178 | u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */ | |
179 | u32 color_key; | |
180 | u32 brightness, contrast, saturation; | |
181 | u32 old_xscale, old_yscale; | |
182 | /* register access */ | |
183 | u32 flip_addr; | |
184 | struct drm_i915_gem_object *reg_bo; | |
185 | /* flip handling */ | |
186 | uint32_t last_flip_req; | |
b303cf95 | 187 | void (*flip_tail)(struct intel_overlay *); |
23f09ce3 | 188 | }; |
02e792fb | 189 | |
8d74f656 CW |
190 | static struct overlay_registers * |
191 | intel_overlay_map_regs(struct intel_overlay *overlay) | |
02e792fb | 192 | { |
0206e353 | 193 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; |
02e792fb DV |
194 | struct overlay_registers *regs; |
195 | ||
9bb2ff73 | 196 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) |
8d74f656 | 197 | regs = overlay->reg_bo->phys_obj->handle->vaddr; |
9bb2ff73 | 198 | else |
8d74f656 CW |
199 | regs = io_mapping_map_wc(dev_priv->mm.gtt_mapping, |
200 | overlay->reg_bo->gtt_offset); | |
02e792fb | 201 | |
9bb2ff73 | 202 | return regs; |
8d74f656 | 203 | } |
02e792fb | 204 | |
9bb2ff73 CW |
205 | static void intel_overlay_unmap_regs(struct intel_overlay *overlay, |
206 | struct overlay_registers *regs) | |
8d74f656 CW |
207 | { |
208 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
9bb2ff73 | 209 | io_mapping_unmap(regs); |
02e792fb DV |
210 | } |
211 | ||
b6c028e0 | 212 | static int intel_overlay_do_wait_request(struct intel_overlay *overlay, |
8dc5d147 | 213 | struct drm_i915_gem_request *request, |
b303cf95 | 214 | void (*tail)(struct intel_overlay *)) |
02e792fb DV |
215 | { |
216 | struct drm_device *dev = overlay->dev; | |
852835f3 | 217 | drm_i915_private_t *dev_priv = dev->dev_private; |
b6c028e0 | 218 | int ret; |
02e792fb | 219 | |
b303cf95 | 220 | BUG_ON(overlay->last_flip_req); |
db53a302 | 221 | ret = i915_add_request(LP_RING(dev_priv), NULL, request); |
3cce469c CW |
222 | if (ret) { |
223 | kfree(request); | |
224 | return ret; | |
225 | } | |
226 | overlay->last_flip_req = request->seqno; | |
b303cf95 | 227 | overlay->flip_tail = tail; |
b93f9cf1 BW |
228 | ret = i915_wait_request(LP_RING(dev_priv), overlay->last_flip_req, |
229 | true); | |
b6c028e0 | 230 | if (ret) |
03f77ea5 | 231 | return ret; |
02e792fb | 232 | |
03f77ea5 | 233 | overlay->last_flip_req = 0; |
02e792fb | 234 | return 0; |
02e792fb DV |
235 | } |
236 | ||
106dadac CW |
237 | /* Workaround for i830 bug where pipe a must be enable to change control regs */ |
238 | static int | |
239 | i830_activate_pipe_a(struct drm_device *dev) | |
02e792fb | 240 | { |
106dadac CW |
241 | drm_i915_private_t *dev_priv = dev->dev_private; |
242 | struct intel_crtc *crtc; | |
243 | struct drm_crtc_helper_funcs *crtc_funcs; | |
244 | struct drm_display_mode vesa_640x480 = { | |
245 | DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, | |
246 | 752, 800, 0, 480, 489, 492, 525, 0, | |
247 | DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) | |
248 | }, *mode; | |
249 | ||
250 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[0]); | |
251 | if (crtc->dpms_mode == DRM_MODE_DPMS_ON) | |
252 | return 0; | |
02e792fb | 253 | |
106dadac | 254 | /* most i8xx have pipe a forced on, so don't trust dpms mode */ |
9db4a9c7 | 255 | if (I915_READ(_PIPEACONF) & PIPECONF_ENABLE) |
106dadac | 256 | return 0; |
02e792fb | 257 | |
106dadac CW |
258 | crtc_funcs = crtc->base.helper_private; |
259 | if (crtc_funcs->dpms == NULL) | |
260 | return 0; | |
261 | ||
262 | DRM_DEBUG_DRIVER("Enabling pipe A in order to enable overlay\n"); | |
263 | ||
264 | mode = drm_mode_duplicate(dev, &vesa_640x480); | |
ca9bfa7e | 265 | drm_mode_set_crtcinfo(mode, 0); |
0206e353 | 266 | if (!drm_crtc_helper_set_mode(&crtc->base, mode, |
106dadac CW |
267 | crtc->base.x, crtc->base.y, |
268 | crtc->base.fb)) | |
269 | return 0; | |
270 | ||
271 | crtc_funcs->dpms(&crtc->base, DRM_MODE_DPMS_ON); | |
272 | return 1; | |
273 | } | |
274 | ||
275 | static void | |
276 | i830_deactivate_pipe_a(struct drm_device *dev) | |
277 | { | |
278 | drm_i915_private_t *dev_priv = dev->dev_private; | |
279 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[0]; | |
280 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
281 | ||
282 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
02e792fb DV |
283 | } |
284 | ||
285 | /* overlay needs to be disable in OCMD reg */ | |
286 | static int intel_overlay_on(struct intel_overlay *overlay) | |
287 | { | |
288 | struct drm_device *dev = overlay->dev; | |
e1f99ce6 | 289 | struct drm_i915_private *dev_priv = dev->dev_private; |
8dc5d147 | 290 | struct drm_i915_gem_request *request; |
106dadac | 291 | int pipe_a_quirk = 0; |
02e792fb | 292 | int ret; |
02e792fb DV |
293 | |
294 | BUG_ON(overlay->active); | |
03f77ea5 | 295 | overlay->active = 1; |
b6c028e0 | 296 | |
106dadac CW |
297 | if (IS_I830(dev)) { |
298 | pipe_a_quirk = i830_activate_pipe_a(dev); | |
299 | if (pipe_a_quirk < 0) | |
300 | return pipe_a_quirk; | |
301 | } | |
302 | ||
8dc5d147 | 303 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
106dadac CW |
304 | if (request == NULL) { |
305 | ret = -ENOMEM; | |
306 | goto out; | |
307 | } | |
03f77ea5 | 308 | |
e1f99ce6 CW |
309 | ret = BEGIN_LP_RING(4); |
310 | if (ret) { | |
311 | kfree(request); | |
312 | goto out; | |
313 | } | |
314 | ||
02e792fb DV |
315 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_ON); |
316 | OUT_RING(overlay->flip_addr | OFC_UPDATE); | |
317 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
318 | OUT_RING(MI_NOOP); | |
319 | ADVANCE_LP_RING(); | |
320 | ||
ce453d81 | 321 | ret = intel_overlay_do_wait_request(overlay, request, NULL); |
106dadac CW |
322 | out: |
323 | if (pipe_a_quirk) | |
324 | i830_deactivate_pipe_a(dev); | |
02e792fb | 325 | |
106dadac | 326 | return ret; |
02e792fb DV |
327 | } |
328 | ||
329 | /* overlay needs to be enabled in OCMD reg */ | |
8dc5d147 CW |
330 | static int intel_overlay_continue(struct intel_overlay *overlay, |
331 | bool load_polyphase_filter) | |
02e792fb DV |
332 | { |
333 | struct drm_device *dev = overlay->dev; | |
0206e353 | 334 | drm_i915_private_t *dev_priv = dev->dev_private; |
8dc5d147 | 335 | struct drm_i915_gem_request *request; |
02e792fb DV |
336 | u32 flip_addr = overlay->flip_addr; |
337 | u32 tmp; | |
e1f99ce6 | 338 | int ret; |
02e792fb DV |
339 | |
340 | BUG_ON(!overlay->active); | |
341 | ||
8dc5d147 CW |
342 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
343 | if (request == NULL) | |
344 | return -ENOMEM; | |
345 | ||
02e792fb DV |
346 | if (load_polyphase_filter) |
347 | flip_addr |= OFC_UPDATE; | |
348 | ||
349 | /* check for underruns */ | |
350 | tmp = I915_READ(DOVSTA); | |
351 | if (tmp & (1 << 17)) | |
352 | DRM_DEBUG("overlay underrun, DOVSTA: %x\n", tmp); | |
353 | ||
e1f99ce6 CW |
354 | ret = BEGIN_LP_RING(2); |
355 | if (ret) { | |
356 | kfree(request); | |
357 | return ret; | |
358 | } | |
02e792fb DV |
359 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); |
360 | OUT_RING(flip_addr); | |
0206e353 | 361 | ADVANCE_LP_RING(); |
5a5a0c64 | 362 | |
db53a302 | 363 | ret = i915_add_request(LP_RING(dev_priv), NULL, request); |
3cce469c CW |
364 | if (ret) { |
365 | kfree(request); | |
366 | return ret; | |
367 | } | |
368 | ||
369 | overlay->last_flip_req = request->seqno; | |
8dc5d147 | 370 | return 0; |
5a5a0c64 DV |
371 | } |
372 | ||
b303cf95 | 373 | static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay) |
5a5a0c64 | 374 | { |
05394f39 | 375 | struct drm_i915_gem_object *obj = overlay->old_vid_bo; |
5a5a0c64 | 376 | |
b303cf95 | 377 | i915_gem_object_unpin(obj); |
05394f39 | 378 | drm_gem_object_unreference(&obj->base); |
5a5a0c64 | 379 | |
b303cf95 CW |
380 | overlay->old_vid_bo = NULL; |
381 | } | |
03f77ea5 | 382 | |
b303cf95 CW |
383 | static void intel_overlay_off_tail(struct intel_overlay *overlay) |
384 | { | |
05394f39 | 385 | struct drm_i915_gem_object *obj = overlay->vid_bo; |
02e792fb | 386 | |
b303cf95 CW |
387 | /* never have the overlay hw on without showing a frame */ |
388 | BUG_ON(!overlay->vid_bo); | |
02e792fb | 389 | |
b303cf95 | 390 | i915_gem_object_unpin(obj); |
05394f39 | 391 | drm_gem_object_unreference(&obj->base); |
b303cf95 | 392 | overlay->vid_bo = NULL; |
03f77ea5 | 393 | |
b303cf95 CW |
394 | overlay->crtc->overlay = NULL; |
395 | overlay->crtc = NULL; | |
396 | overlay->active = 0; | |
02e792fb DV |
397 | } |
398 | ||
399 | /* overlay needs to be disabled in OCMD reg */ | |
ce453d81 | 400 | static int intel_overlay_off(struct intel_overlay *overlay) |
02e792fb | 401 | { |
02e792fb | 402 | struct drm_device *dev = overlay->dev; |
e1f99ce6 | 403 | struct drm_i915_private *dev_priv = dev->dev_private; |
8dc5d147 CW |
404 | u32 flip_addr = overlay->flip_addr; |
405 | struct drm_i915_gem_request *request; | |
e1f99ce6 | 406 | int ret; |
02e792fb DV |
407 | |
408 | BUG_ON(!overlay->active); | |
409 | ||
8dc5d147 CW |
410 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
411 | if (request == NULL) | |
412 | return -ENOMEM; | |
413 | ||
02e792fb DV |
414 | /* According to intel docs the overlay hw may hang (when switching |
415 | * off) without loading the filter coeffs. It is however unclear whether | |
416 | * this applies to the disabling of the overlay or to the switching off | |
417 | * of the hw. Do it in both cases */ | |
418 | flip_addr |= OFC_UPDATE; | |
419 | ||
e1f99ce6 CW |
420 | ret = BEGIN_LP_RING(6); |
421 | if (ret) { | |
422 | kfree(request); | |
423 | return ret; | |
424 | } | |
02e792fb | 425 | /* wait for overlay to go idle */ |
02e792fb DV |
426 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); |
427 | OUT_RING(flip_addr); | |
722506f0 | 428 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
02e792fb | 429 | /* turn overlay off */ |
722506f0 | 430 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF); |
02e792fb | 431 | OUT_RING(flip_addr); |
722506f0 | 432 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
02e792fb DV |
433 | ADVANCE_LP_RING(); |
434 | ||
ce453d81 | 435 | return intel_overlay_do_wait_request(overlay, request, |
b303cf95 | 436 | intel_overlay_off_tail); |
12ca45fe DV |
437 | } |
438 | ||
03f77ea5 DV |
439 | /* recover from an interruption due to a signal |
440 | * We have to be careful not to repeat work forever an make forward progess. */ | |
ce453d81 | 441 | static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay) |
03f77ea5 DV |
442 | { |
443 | struct drm_device *dev = overlay->dev; | |
852835f3 | 444 | drm_i915_private_t *dev_priv = dev->dev_private; |
03f77ea5 | 445 | int ret; |
03f77ea5 | 446 | |
b303cf95 CW |
447 | if (overlay->last_flip_req == 0) |
448 | return 0; | |
03f77ea5 | 449 | |
b93f9cf1 BW |
450 | ret = i915_wait_request(LP_RING(dev_priv), overlay->last_flip_req, |
451 | true); | |
b6c028e0 | 452 | if (ret) |
03f77ea5 DV |
453 | return ret; |
454 | ||
b303cf95 CW |
455 | if (overlay->flip_tail) |
456 | overlay->flip_tail(overlay); | |
03f77ea5 | 457 | |
03f77ea5 DV |
458 | overlay->last_flip_req = 0; |
459 | return 0; | |
460 | } | |
461 | ||
5a5a0c64 DV |
462 | /* Wait for pending overlay flip and release old frame. |
463 | * Needs to be called before the overlay register are changed | |
8d74f656 CW |
464 | * via intel_overlay_(un)map_regs |
465 | */ | |
02e792fb DV |
466 | static int intel_overlay_release_old_vid(struct intel_overlay *overlay) |
467 | { | |
5cd68c98 CW |
468 | struct drm_device *dev = overlay->dev; |
469 | drm_i915_private_t *dev_priv = dev->dev_private; | |
02e792fb | 470 | int ret; |
02e792fb | 471 | |
5cd68c98 CW |
472 | /* Only wait if there is actually an old frame to release to |
473 | * guarantee forward progress. | |
474 | */ | |
03f77ea5 DV |
475 | if (!overlay->old_vid_bo) |
476 | return 0; | |
477 | ||
5cd68c98 | 478 | if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) { |
8dc5d147 | 479 | struct drm_i915_gem_request *request; |
02e792fb | 480 | |
5cd68c98 | 481 | /* synchronous slowpath */ |
8dc5d147 CW |
482 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
483 | if (request == NULL) | |
484 | return -ENOMEM; | |
02e792fb | 485 | |
e1f99ce6 CW |
486 | ret = BEGIN_LP_RING(2); |
487 | if (ret) { | |
488 | kfree(request); | |
489 | return ret; | |
490 | } | |
491 | ||
5cd68c98 CW |
492 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
493 | OUT_RING(MI_NOOP); | |
494 | ADVANCE_LP_RING(); | |
495 | ||
ce453d81 | 496 | ret = intel_overlay_do_wait_request(overlay, request, |
b303cf95 | 497 | intel_overlay_release_old_vid_tail); |
5cd68c98 CW |
498 | if (ret) |
499 | return ret; | |
500 | } | |
02e792fb | 501 | |
5cd68c98 | 502 | intel_overlay_release_old_vid_tail(overlay); |
02e792fb DV |
503 | return 0; |
504 | } | |
505 | ||
506 | struct put_image_params { | |
507 | int format; | |
508 | short dst_x; | |
509 | short dst_y; | |
510 | short dst_w; | |
511 | short dst_h; | |
512 | short src_w; | |
513 | short src_scan_h; | |
514 | short src_scan_w; | |
515 | short src_h; | |
516 | short stride_Y; | |
517 | short stride_UV; | |
518 | int offset_Y; | |
519 | int offset_U; | |
520 | int offset_V; | |
521 | }; | |
522 | ||
523 | static int packed_depth_bytes(u32 format) | |
524 | { | |
525 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
526 | case I915_OVERLAY_YUV422: |
527 | return 4; | |
528 | case I915_OVERLAY_YUV411: | |
529 | /* return 6; not implemented */ | |
530 | default: | |
531 | return -EINVAL; | |
02e792fb DV |
532 | } |
533 | } | |
534 | ||
535 | static int packed_width_bytes(u32 format, short width) | |
536 | { | |
537 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
538 | case I915_OVERLAY_YUV422: |
539 | return width << 1; | |
540 | default: | |
541 | return -EINVAL; | |
02e792fb DV |
542 | } |
543 | } | |
544 | ||
545 | static int uv_hsubsampling(u32 format) | |
546 | { | |
547 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
548 | case I915_OVERLAY_YUV422: |
549 | case I915_OVERLAY_YUV420: | |
550 | return 2; | |
551 | case I915_OVERLAY_YUV411: | |
552 | case I915_OVERLAY_YUV410: | |
553 | return 4; | |
554 | default: | |
555 | return -EINVAL; | |
02e792fb DV |
556 | } |
557 | } | |
558 | ||
559 | static int uv_vsubsampling(u32 format) | |
560 | { | |
561 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
562 | case I915_OVERLAY_YUV420: |
563 | case I915_OVERLAY_YUV410: | |
564 | return 2; | |
565 | case I915_OVERLAY_YUV422: | |
566 | case I915_OVERLAY_YUV411: | |
567 | return 1; | |
568 | default: | |
569 | return -EINVAL; | |
02e792fb DV |
570 | } |
571 | } | |
572 | ||
573 | static u32 calc_swidthsw(struct drm_device *dev, u32 offset, u32 width) | |
574 | { | |
575 | u32 mask, shift, ret; | |
a6c45cf0 | 576 | if (IS_GEN2(dev)) { |
02e792fb DV |
577 | mask = 0x1f; |
578 | shift = 5; | |
a6c45cf0 CW |
579 | } else { |
580 | mask = 0x3f; | |
581 | shift = 6; | |
02e792fb DV |
582 | } |
583 | ret = ((offset + width + mask) >> shift) - (offset >> shift); | |
a6c45cf0 | 584 | if (!IS_GEN2(dev)) |
02e792fb | 585 | ret <<= 1; |
0206e353 | 586 | ret -= 1; |
02e792fb DV |
587 | return ret << 2; |
588 | } | |
589 | ||
590 | static const u16 y_static_hcoeffs[N_HORIZ_Y_TAPS * N_PHASES] = { | |
591 | 0x3000, 0xb4a0, 0x1930, 0x1920, 0xb4a0, | |
592 | 0x3000, 0xb500, 0x19d0, 0x1880, 0xb440, | |
593 | 0x3000, 0xb540, 0x1a88, 0x2f80, 0xb3e0, | |
594 | 0x3000, 0xb580, 0x1b30, 0x2e20, 0xb380, | |
595 | 0x3000, 0xb5c0, 0x1bd8, 0x2cc0, 0xb320, | |
596 | 0x3020, 0xb5e0, 0x1c60, 0x2b80, 0xb2c0, | |
597 | 0x3020, 0xb5e0, 0x1cf8, 0x2a20, 0xb260, | |
598 | 0x3020, 0xb5e0, 0x1d80, 0x28e0, 0xb200, | |
599 | 0x3020, 0xb5c0, 0x1e08, 0x3f40, 0xb1c0, | |
600 | 0x3020, 0xb580, 0x1e78, 0x3ce0, 0xb160, | |
601 | 0x3040, 0xb520, 0x1ed8, 0x3aa0, 0xb120, | |
602 | 0x3040, 0xb4a0, 0x1f30, 0x3880, 0xb0e0, | |
603 | 0x3040, 0xb400, 0x1f78, 0x3680, 0xb0a0, | |
604 | 0x3020, 0xb340, 0x1fb8, 0x34a0, 0xb060, | |
605 | 0x3020, 0xb240, 0x1fe0, 0x32e0, 0xb040, | |
606 | 0x3020, 0xb140, 0x1ff8, 0x3160, 0xb020, | |
722506f0 CW |
607 | 0xb000, 0x3000, 0x0800, 0x3000, 0xb000 |
608 | }; | |
609 | ||
02e792fb DV |
610 | static const u16 uv_static_hcoeffs[N_HORIZ_UV_TAPS * N_PHASES] = { |
611 | 0x3000, 0x1800, 0x1800, 0xb000, 0x18d0, 0x2e60, | |
612 | 0xb000, 0x1990, 0x2ce0, 0xb020, 0x1a68, 0x2b40, | |
613 | 0xb040, 0x1b20, 0x29e0, 0xb060, 0x1bd8, 0x2880, | |
614 | 0xb080, 0x1c88, 0x3e60, 0xb0a0, 0x1d28, 0x3c00, | |
615 | 0xb0c0, 0x1db8, 0x39e0, 0xb0e0, 0x1e40, 0x37e0, | |
616 | 0xb100, 0x1eb8, 0x3620, 0xb100, 0x1f18, 0x34a0, | |
617 | 0xb100, 0x1f68, 0x3360, 0xb0e0, 0x1fa8, 0x3240, | |
618 | 0xb0c0, 0x1fe0, 0x3140, 0xb060, 0x1ff0, 0x30a0, | |
722506f0 CW |
619 | 0x3000, 0x0800, 0x3000 |
620 | }; | |
02e792fb DV |
621 | |
622 | static void update_polyphase_filter(struct overlay_registers *regs) | |
623 | { | |
624 | memcpy(regs->Y_HCOEFS, y_static_hcoeffs, sizeof(y_static_hcoeffs)); | |
625 | memcpy(regs->UV_HCOEFS, uv_static_hcoeffs, sizeof(uv_static_hcoeffs)); | |
626 | } | |
627 | ||
628 | static bool update_scaling_factors(struct intel_overlay *overlay, | |
629 | struct overlay_registers *regs, | |
630 | struct put_image_params *params) | |
631 | { | |
632 | /* fixed point with a 12 bit shift */ | |
633 | u32 xscale, yscale, xscale_UV, yscale_UV; | |
634 | #define FP_SHIFT 12 | |
635 | #define FRACT_MASK 0xfff | |
636 | bool scale_changed = false; | |
637 | int uv_hscale = uv_hsubsampling(params->format); | |
638 | int uv_vscale = uv_vsubsampling(params->format); | |
639 | ||
640 | if (params->dst_w > 1) | |
641 | xscale = ((params->src_scan_w - 1) << FP_SHIFT) | |
642 | /(params->dst_w); | |
643 | else | |
644 | xscale = 1 << FP_SHIFT; | |
645 | ||
646 | if (params->dst_h > 1) | |
647 | yscale = ((params->src_scan_h - 1) << FP_SHIFT) | |
648 | /(params->dst_h); | |
649 | else | |
650 | yscale = 1 << FP_SHIFT; | |
651 | ||
652 | /*if (params->format & I915_OVERLAY_YUV_PLANAR) {*/ | |
722506f0 CW |
653 | xscale_UV = xscale/uv_hscale; |
654 | yscale_UV = yscale/uv_vscale; | |
655 | /* make the Y scale to UV scale ratio an exact multiply */ | |
656 | xscale = xscale_UV * uv_hscale; | |
657 | yscale = yscale_UV * uv_vscale; | |
02e792fb | 658 | /*} else { |
722506f0 CW |
659 | xscale_UV = 0; |
660 | yscale_UV = 0; | |
661 | }*/ | |
02e792fb DV |
662 | |
663 | if (xscale != overlay->old_xscale || yscale != overlay->old_yscale) | |
664 | scale_changed = true; | |
665 | overlay->old_xscale = xscale; | |
666 | overlay->old_yscale = yscale; | |
667 | ||
722506f0 CW |
668 | regs->YRGBSCALE = (((yscale & FRACT_MASK) << 20) | |
669 | ((xscale >> FP_SHIFT) << 16) | | |
670 | ((xscale & FRACT_MASK) << 3)); | |
671 | ||
672 | regs->UVSCALE = (((yscale_UV & FRACT_MASK) << 20) | | |
673 | ((xscale_UV >> FP_SHIFT) << 16) | | |
674 | ((xscale_UV & FRACT_MASK) << 3)); | |
675 | ||
676 | regs->UVSCALEV = ((((yscale >> FP_SHIFT) << 16) | | |
677 | ((yscale_UV >> FP_SHIFT) << 0))); | |
02e792fb DV |
678 | |
679 | if (scale_changed) | |
680 | update_polyphase_filter(regs); | |
681 | ||
682 | return scale_changed; | |
683 | } | |
684 | ||
685 | static void update_colorkey(struct intel_overlay *overlay, | |
686 | struct overlay_registers *regs) | |
687 | { | |
688 | u32 key = overlay->color_key; | |
6ba3ddd9 | 689 | |
02e792fb | 690 | switch (overlay->crtc->base.fb->bits_per_pixel) { |
722506f0 CW |
691 | case 8: |
692 | regs->DCLRKV = 0; | |
693 | regs->DCLRKM = CLK_RGB8I_MASK | DST_KEY_ENABLE; | |
6ba3ddd9 CW |
694 | break; |
695 | ||
722506f0 CW |
696 | case 16: |
697 | if (overlay->crtc->base.fb->depth == 15) { | |
698 | regs->DCLRKV = RGB15_TO_COLORKEY(key); | |
699 | regs->DCLRKM = CLK_RGB15_MASK | DST_KEY_ENABLE; | |
700 | } else { | |
701 | regs->DCLRKV = RGB16_TO_COLORKEY(key); | |
702 | regs->DCLRKM = CLK_RGB16_MASK | DST_KEY_ENABLE; | |
703 | } | |
6ba3ddd9 CW |
704 | break; |
705 | ||
722506f0 CW |
706 | case 24: |
707 | case 32: | |
708 | regs->DCLRKV = key; | |
709 | regs->DCLRKM = CLK_RGB24_MASK | DST_KEY_ENABLE; | |
6ba3ddd9 | 710 | break; |
02e792fb DV |
711 | } |
712 | } | |
713 | ||
714 | static u32 overlay_cmd_reg(struct put_image_params *params) | |
715 | { | |
716 | u32 cmd = OCMD_ENABLE | OCMD_BUF_TYPE_FRAME | OCMD_BUFFER0; | |
717 | ||
718 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
719 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
720 | case I915_OVERLAY_YUV422: |
721 | cmd |= OCMD_YUV_422_PLANAR; | |
722 | break; | |
723 | case I915_OVERLAY_YUV420: | |
724 | cmd |= OCMD_YUV_420_PLANAR; | |
725 | break; | |
726 | case I915_OVERLAY_YUV411: | |
727 | case I915_OVERLAY_YUV410: | |
728 | cmd |= OCMD_YUV_410_PLANAR; | |
729 | break; | |
02e792fb DV |
730 | } |
731 | } else { /* YUV packed */ | |
732 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
733 | case I915_OVERLAY_YUV422: |
734 | cmd |= OCMD_YUV_422_PACKED; | |
735 | break; | |
736 | case I915_OVERLAY_YUV411: | |
737 | cmd |= OCMD_YUV_411_PACKED; | |
738 | break; | |
02e792fb DV |
739 | } |
740 | ||
741 | switch (params->format & I915_OVERLAY_SWAP_MASK) { | |
722506f0 CW |
742 | case I915_OVERLAY_NO_SWAP: |
743 | break; | |
744 | case I915_OVERLAY_UV_SWAP: | |
745 | cmd |= OCMD_UV_SWAP; | |
746 | break; | |
747 | case I915_OVERLAY_Y_SWAP: | |
748 | cmd |= OCMD_Y_SWAP; | |
749 | break; | |
750 | case I915_OVERLAY_Y_AND_UV_SWAP: | |
751 | cmd |= OCMD_Y_AND_UV_SWAP; | |
752 | break; | |
02e792fb DV |
753 | } |
754 | } | |
755 | ||
756 | return cmd; | |
757 | } | |
758 | ||
5fe82c5e | 759 | static int intel_overlay_do_put_image(struct intel_overlay *overlay, |
05394f39 | 760 | struct drm_i915_gem_object *new_bo, |
5fe82c5e | 761 | struct put_image_params *params) |
02e792fb DV |
762 | { |
763 | int ret, tmp_width; | |
764 | struct overlay_registers *regs; | |
765 | bool scale_changed = false; | |
02e792fb DV |
766 | struct drm_device *dev = overlay->dev; |
767 | ||
768 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
769 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
770 | BUG_ON(!overlay); | |
771 | ||
02e792fb DV |
772 | ret = intel_overlay_release_old_vid(overlay); |
773 | if (ret != 0) | |
774 | return ret; | |
775 | ||
2da3b9b9 | 776 | ret = i915_gem_object_pin_to_display_plane(new_bo, 0, NULL); |
02e792fb DV |
777 | if (ret != 0) |
778 | return ret; | |
779 | ||
d9e86c0e CW |
780 | ret = i915_gem_object_put_fence(new_bo); |
781 | if (ret) | |
782 | goto out_unpin; | |
783 | ||
02e792fb | 784 | if (!overlay->active) { |
8d74f656 | 785 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
786 | if (!regs) { |
787 | ret = -ENOMEM; | |
788 | goto out_unpin; | |
789 | } | |
790 | regs->OCONFIG = OCONF_CC_OUT_8BIT; | |
a6c45cf0 | 791 | if (IS_GEN4(overlay->dev)) |
02e792fb DV |
792 | regs->OCONFIG |= OCONF_CSC_MODE_BT709; |
793 | regs->OCONFIG |= overlay->crtc->pipe == 0 ? | |
794 | OCONF_PIPE_A : OCONF_PIPE_B; | |
9bb2ff73 | 795 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
796 | |
797 | ret = intel_overlay_on(overlay); | |
798 | if (ret != 0) | |
799 | goto out_unpin; | |
800 | } | |
801 | ||
8d74f656 | 802 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
803 | if (!regs) { |
804 | ret = -ENOMEM; | |
805 | goto out_unpin; | |
806 | } | |
807 | ||
808 | regs->DWINPOS = (params->dst_y << 16) | params->dst_x; | |
809 | regs->DWINSZ = (params->dst_h << 16) | params->dst_w; | |
810 | ||
811 | if (params->format & I915_OVERLAY_YUV_PACKED) | |
812 | tmp_width = packed_width_bytes(params->format, params->src_w); | |
813 | else | |
814 | tmp_width = params->src_w; | |
815 | ||
816 | regs->SWIDTH = params->src_w; | |
817 | regs->SWIDTHSW = calc_swidthsw(overlay->dev, | |
722506f0 | 818 | params->offset_Y, tmp_width); |
02e792fb | 819 | regs->SHEIGHT = params->src_h; |
0206e353 | 820 | regs->OBUF_0Y = new_bo->gtt_offset + params->offset_Y; |
02e792fb DV |
821 | regs->OSTRIDE = params->stride_Y; |
822 | ||
823 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
824 | int uv_hscale = uv_hsubsampling(params->format); | |
825 | int uv_vscale = uv_vsubsampling(params->format); | |
826 | u32 tmp_U, tmp_V; | |
827 | regs->SWIDTH |= (params->src_w/uv_hscale) << 16; | |
828 | tmp_U = calc_swidthsw(overlay->dev, params->offset_U, | |
722506f0 | 829 | params->src_w/uv_hscale); |
02e792fb | 830 | tmp_V = calc_swidthsw(overlay->dev, params->offset_V, |
722506f0 | 831 | params->src_w/uv_hscale); |
02e792fb DV |
832 | regs->SWIDTHSW |= max_t(u32, tmp_U, tmp_V) << 16; |
833 | regs->SHEIGHT |= (params->src_h/uv_vscale) << 16; | |
05394f39 CW |
834 | regs->OBUF_0U = new_bo->gtt_offset + params->offset_U; |
835 | regs->OBUF_0V = new_bo->gtt_offset + params->offset_V; | |
02e792fb DV |
836 | regs->OSTRIDE |= params->stride_UV << 16; |
837 | } | |
838 | ||
839 | scale_changed = update_scaling_factors(overlay, regs, params); | |
840 | ||
841 | update_colorkey(overlay, regs); | |
842 | ||
843 | regs->OCMD = overlay_cmd_reg(params); | |
844 | ||
9bb2ff73 | 845 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb | 846 | |
8dc5d147 CW |
847 | ret = intel_overlay_continue(overlay, scale_changed); |
848 | if (ret) | |
849 | goto out_unpin; | |
02e792fb DV |
850 | |
851 | overlay->old_vid_bo = overlay->vid_bo; | |
05394f39 | 852 | overlay->vid_bo = new_bo; |
02e792fb DV |
853 | |
854 | return 0; | |
855 | ||
856 | out_unpin: | |
857 | i915_gem_object_unpin(new_bo); | |
858 | return ret; | |
859 | } | |
860 | ||
ce453d81 | 861 | int intel_overlay_switch_off(struct intel_overlay *overlay) |
02e792fb | 862 | { |
02e792fb | 863 | struct overlay_registers *regs; |
02e792fb | 864 | struct drm_device *dev = overlay->dev; |
5dcdbcb0 | 865 | int ret; |
02e792fb DV |
866 | |
867 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
868 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
869 | ||
ce453d81 | 870 | ret = intel_overlay_recover_from_interrupt(overlay); |
b303cf95 CW |
871 | if (ret != 0) |
872 | return ret; | |
9bedb974 | 873 | |
02e792fb DV |
874 | if (!overlay->active) |
875 | return 0; | |
876 | ||
02e792fb DV |
877 | ret = intel_overlay_release_old_vid(overlay); |
878 | if (ret != 0) | |
879 | return ret; | |
880 | ||
8d74f656 | 881 | regs = intel_overlay_map_regs(overlay); |
02e792fb | 882 | regs->OCMD = 0; |
9bb2ff73 | 883 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb | 884 | |
ce453d81 | 885 | ret = intel_overlay_off(overlay); |
03f77ea5 DV |
886 | if (ret != 0) |
887 | return ret; | |
888 | ||
12ca45fe | 889 | intel_overlay_off_tail(overlay); |
02e792fb DV |
890 | return 0; |
891 | } | |
892 | ||
893 | static int check_overlay_possible_on_crtc(struct intel_overlay *overlay, | |
894 | struct intel_crtc *crtc) | |
895 | { | |
722506f0 | 896 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; |
02e792fb | 897 | |
f7abfe8b | 898 | if (!crtc->active) |
02e792fb DV |
899 | return -EINVAL; |
900 | ||
02e792fb | 901 | /* can't use the overlay with double wide pipe */ |
a6c45cf0 | 902 | if (INTEL_INFO(overlay->dev)->gen < 4 && |
f7abfe8b | 903 | (I915_READ(PIPECONF(crtc->pipe)) & (PIPECONF_DOUBLE_WIDE | PIPECONF_ENABLE)) != PIPECONF_ENABLE) |
02e792fb DV |
904 | return -EINVAL; |
905 | ||
906 | return 0; | |
907 | } | |
908 | ||
909 | static void update_pfit_vscale_ratio(struct intel_overlay *overlay) | |
910 | { | |
911 | struct drm_device *dev = overlay->dev; | |
722506f0 | 912 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb | 913 | u32 pfit_control = I915_READ(PFIT_CONTROL); |
446d2183 | 914 | u32 ratio; |
02e792fb DV |
915 | |
916 | /* XXX: This is not the same logic as in the xorg driver, but more in | |
446d2183 CW |
917 | * line with the intel documentation for the i965 |
918 | */ | |
a6c45cf0 | 919 | if (INTEL_INFO(dev)->gen >= 4) { |
0206e353 | 920 | /* on i965 use the PGM reg to read out the autoscaler values */ |
a6c45cf0 CW |
921 | ratio = I915_READ(PFIT_PGM_RATIOS) >> PFIT_VERT_SCALE_SHIFT_965; |
922 | } else { | |
446d2183 CW |
923 | if (pfit_control & VERT_AUTO_SCALE) |
924 | ratio = I915_READ(PFIT_AUTO_RATIOS); | |
02e792fb | 925 | else |
446d2183 CW |
926 | ratio = I915_READ(PFIT_PGM_RATIOS); |
927 | ratio >>= PFIT_VERT_SCALE_SHIFT; | |
02e792fb DV |
928 | } |
929 | ||
930 | overlay->pfit_vscale_ratio = ratio; | |
931 | } | |
932 | ||
933 | static int check_overlay_dst(struct intel_overlay *overlay, | |
934 | struct drm_intel_overlay_put_image *rec) | |
935 | { | |
936 | struct drm_display_mode *mode = &overlay->crtc->base.mode; | |
937 | ||
75c13993 DV |
938 | if (rec->dst_x < mode->hdisplay && |
939 | rec->dst_x + rec->dst_width <= mode->hdisplay && | |
940 | rec->dst_y < mode->vdisplay && | |
941 | rec->dst_y + rec->dst_height <= mode->vdisplay) | |
02e792fb DV |
942 | return 0; |
943 | else | |
944 | return -EINVAL; | |
945 | } | |
946 | ||
947 | static int check_overlay_scaling(struct put_image_params *rec) | |
948 | { | |
949 | u32 tmp; | |
950 | ||
951 | /* downscaling limit is 8.0 */ | |
952 | tmp = ((rec->src_scan_h << 16) / rec->dst_h) >> 16; | |
953 | if (tmp > 7) | |
954 | return -EINVAL; | |
955 | tmp = ((rec->src_scan_w << 16) / rec->dst_w) >> 16; | |
956 | if (tmp > 7) | |
957 | return -EINVAL; | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | static int check_overlay_src(struct drm_device *dev, | |
963 | struct drm_intel_overlay_put_image *rec, | |
05394f39 | 964 | struct drm_i915_gem_object *new_bo) |
02e792fb | 965 | { |
02e792fb DV |
966 | int uv_hscale = uv_hsubsampling(rec->flags); |
967 | int uv_vscale = uv_vsubsampling(rec->flags); | |
8f28f54a DC |
968 | u32 stride_mask; |
969 | int depth; | |
970 | u32 tmp; | |
02e792fb DV |
971 | |
972 | /* check src dimensions */ | |
973 | if (IS_845G(dev) || IS_I830(dev)) { | |
722506f0 | 974 | if (rec->src_height > IMAGE_MAX_HEIGHT_LEGACY || |
9f7c3f44 | 975 | rec->src_width > IMAGE_MAX_WIDTH_LEGACY) |
02e792fb DV |
976 | return -EINVAL; |
977 | } else { | |
722506f0 | 978 | if (rec->src_height > IMAGE_MAX_HEIGHT || |
9f7c3f44 | 979 | rec->src_width > IMAGE_MAX_WIDTH) |
02e792fb DV |
980 | return -EINVAL; |
981 | } | |
9f7c3f44 | 982 | |
02e792fb | 983 | /* better safe than sorry, use 4 as the maximal subsampling ratio */ |
722506f0 | 984 | if (rec->src_height < N_VERT_Y_TAPS*4 || |
9f7c3f44 | 985 | rec->src_width < N_HORIZ_Y_TAPS*4) |
02e792fb DV |
986 | return -EINVAL; |
987 | ||
a1efd14a | 988 | /* check alignment constraints */ |
02e792fb | 989 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { |
722506f0 CW |
990 | case I915_OVERLAY_RGB: |
991 | /* not implemented */ | |
992 | return -EINVAL; | |
9f7c3f44 | 993 | |
722506f0 | 994 | case I915_OVERLAY_YUV_PACKED: |
722506f0 | 995 | if (uv_vscale != 1) |
02e792fb | 996 | return -EINVAL; |
9f7c3f44 CW |
997 | |
998 | depth = packed_depth_bytes(rec->flags); | |
722506f0 CW |
999 | if (depth < 0) |
1000 | return depth; | |
9f7c3f44 | 1001 | |
722506f0 CW |
1002 | /* ignore UV planes */ |
1003 | rec->stride_UV = 0; | |
1004 | rec->offset_U = 0; | |
1005 | rec->offset_V = 0; | |
1006 | /* check pixel alignment */ | |
1007 | if (rec->offset_Y % depth) | |
1008 | return -EINVAL; | |
1009 | break; | |
9f7c3f44 | 1010 | |
722506f0 CW |
1011 | case I915_OVERLAY_YUV_PLANAR: |
1012 | if (uv_vscale < 0 || uv_hscale < 0) | |
02e792fb | 1013 | return -EINVAL; |
722506f0 CW |
1014 | /* no offset restrictions for planar formats */ |
1015 | break; | |
9f7c3f44 | 1016 | |
722506f0 CW |
1017 | default: |
1018 | return -EINVAL; | |
02e792fb DV |
1019 | } |
1020 | ||
1021 | if (rec->src_width % uv_hscale) | |
1022 | return -EINVAL; | |
1023 | ||
1024 | /* stride checking */ | |
a1efd14a CW |
1025 | if (IS_I830(dev) || IS_845G(dev)) |
1026 | stride_mask = 255; | |
1027 | else | |
1028 | stride_mask = 63; | |
02e792fb DV |
1029 | |
1030 | if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask) | |
1031 | return -EINVAL; | |
a6c45cf0 | 1032 | if (IS_GEN4(dev) && rec->stride_Y < 512) |
02e792fb DV |
1033 | return -EINVAL; |
1034 | ||
1035 | tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ? | |
9f7c3f44 CW |
1036 | 4096 : 8192; |
1037 | if (rec->stride_Y > tmp || rec->stride_UV > 2*1024) | |
02e792fb DV |
1038 | return -EINVAL; |
1039 | ||
1040 | /* check buffer dimensions */ | |
1041 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { | |
722506f0 CW |
1042 | case I915_OVERLAY_RGB: |
1043 | case I915_OVERLAY_YUV_PACKED: | |
1044 | /* always 4 Y values per depth pixels */ | |
1045 | if (packed_width_bytes(rec->flags, rec->src_width) > rec->stride_Y) | |
1046 | return -EINVAL; | |
1047 | ||
1048 | tmp = rec->stride_Y*rec->src_height; | |
05394f39 | 1049 | if (rec->offset_Y + tmp > new_bo->base.size) |
722506f0 CW |
1050 | return -EINVAL; |
1051 | break; | |
1052 | ||
1053 | case I915_OVERLAY_YUV_PLANAR: | |
1054 | if (rec->src_width > rec->stride_Y) | |
1055 | return -EINVAL; | |
1056 | if (rec->src_width/uv_hscale > rec->stride_UV) | |
1057 | return -EINVAL; | |
1058 | ||
9f7c3f44 | 1059 | tmp = rec->stride_Y * rec->src_height; |
05394f39 | 1060 | if (rec->offset_Y + tmp > new_bo->base.size) |
722506f0 | 1061 | return -EINVAL; |
9f7c3f44 CW |
1062 | |
1063 | tmp = rec->stride_UV * (rec->src_height / uv_vscale); | |
05394f39 CW |
1064 | if (rec->offset_U + tmp > new_bo->base.size || |
1065 | rec->offset_V + tmp > new_bo->base.size) | |
722506f0 CW |
1066 | return -EINVAL; |
1067 | break; | |
02e792fb DV |
1068 | } |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
e9e331a8 CW |
1073 | /** |
1074 | * Return the pipe currently connected to the panel fitter, | |
1075 | * or -1 if the panel fitter is not present or not in use | |
1076 | */ | |
1077 | static int intel_panel_fitter_pipe(struct drm_device *dev) | |
1078 | { | |
1079 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1080 | u32 pfit_control; | |
1081 | ||
1082 | /* i830 doesn't have a panel fitter */ | |
1083 | if (IS_I830(dev)) | |
1084 | return -1; | |
1085 | ||
1086 | pfit_control = I915_READ(PFIT_CONTROL); | |
1087 | ||
1088 | /* See if the panel fitter is in use */ | |
1089 | if ((pfit_control & PFIT_ENABLE) == 0) | |
1090 | return -1; | |
1091 | ||
1092 | /* 965 can place panel fitter on either pipe */ | |
a6c45cf0 | 1093 | if (IS_GEN4(dev)) |
e9e331a8 CW |
1094 | return (pfit_control >> 29) & 0x3; |
1095 | ||
1096 | /* older chips can only use pipe 1 */ | |
1097 | return 1; | |
1098 | } | |
1099 | ||
02e792fb | 1100 | int intel_overlay_put_image(struct drm_device *dev, void *data, |
0206e353 | 1101 | struct drm_file *file_priv) |
02e792fb DV |
1102 | { |
1103 | struct drm_intel_overlay_put_image *put_image_rec = data; | |
1104 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1105 | struct intel_overlay *overlay; | |
1106 | struct drm_mode_object *drmmode_obj; | |
1107 | struct intel_crtc *crtc; | |
05394f39 | 1108 | struct drm_i915_gem_object *new_bo; |
02e792fb DV |
1109 | struct put_image_params *params; |
1110 | int ret; | |
1111 | ||
1112 | if (!dev_priv) { | |
1113 | DRM_ERROR("called with no initialization\n"); | |
1114 | return -EINVAL; | |
1115 | } | |
1116 | ||
1117 | overlay = dev_priv->overlay; | |
1118 | if (!overlay) { | |
1119 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1120 | return -ENODEV; | |
1121 | } | |
1122 | ||
1123 | if (!(put_image_rec->flags & I915_OVERLAY_ENABLE)) { | |
1124 | mutex_lock(&dev->mode_config.mutex); | |
1125 | mutex_lock(&dev->struct_mutex); | |
1126 | ||
ce453d81 | 1127 | ret = intel_overlay_switch_off(overlay); |
02e792fb DV |
1128 | |
1129 | mutex_unlock(&dev->struct_mutex); | |
1130 | mutex_unlock(&dev->mode_config.mutex); | |
1131 | ||
1132 | return ret; | |
1133 | } | |
1134 | ||
1135 | params = kmalloc(sizeof(struct put_image_params), GFP_KERNEL); | |
1136 | if (!params) | |
1137 | return -ENOMEM; | |
1138 | ||
1139 | drmmode_obj = drm_mode_object_find(dev, put_image_rec->crtc_id, | |
722506f0 | 1140 | DRM_MODE_OBJECT_CRTC); |
915a428e DC |
1141 | if (!drmmode_obj) { |
1142 | ret = -ENOENT; | |
1143 | goto out_free; | |
1144 | } | |
02e792fb DV |
1145 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
1146 | ||
05394f39 CW |
1147 | new_bo = to_intel_bo(drm_gem_object_lookup(dev, file_priv, |
1148 | put_image_rec->bo_handle)); | |
c8725226 | 1149 | if (&new_bo->base == NULL) { |
915a428e DC |
1150 | ret = -ENOENT; |
1151 | goto out_free; | |
1152 | } | |
02e792fb DV |
1153 | |
1154 | mutex_lock(&dev->mode_config.mutex); | |
1155 | mutex_lock(&dev->struct_mutex); | |
1156 | ||
d9e86c0e CW |
1157 | if (new_bo->tiling_mode) { |
1158 | DRM_ERROR("buffer used for overlay image can not be tiled\n"); | |
1159 | ret = -EINVAL; | |
1160 | goto out_unlock; | |
1161 | } | |
1162 | ||
ce453d81 | 1163 | ret = intel_overlay_recover_from_interrupt(overlay); |
b303cf95 CW |
1164 | if (ret != 0) |
1165 | goto out_unlock; | |
03f77ea5 | 1166 | |
02e792fb DV |
1167 | if (overlay->crtc != crtc) { |
1168 | struct drm_display_mode *mode = &crtc->base.mode; | |
ce453d81 | 1169 | ret = intel_overlay_switch_off(overlay); |
02e792fb DV |
1170 | if (ret != 0) |
1171 | goto out_unlock; | |
1172 | ||
1173 | ret = check_overlay_possible_on_crtc(overlay, crtc); | |
1174 | if (ret != 0) | |
1175 | goto out_unlock; | |
1176 | ||
1177 | overlay->crtc = crtc; | |
1178 | crtc->overlay = overlay; | |
1179 | ||
e9e331a8 CW |
1180 | /* line too wide, i.e. one-line-mode */ |
1181 | if (mode->hdisplay > 1024 && | |
1182 | intel_panel_fitter_pipe(dev) == crtc->pipe) { | |
02e792fb DV |
1183 | overlay->pfit_active = 1; |
1184 | update_pfit_vscale_ratio(overlay); | |
1185 | } else | |
1186 | overlay->pfit_active = 0; | |
1187 | } | |
1188 | ||
1189 | ret = check_overlay_dst(overlay, put_image_rec); | |
1190 | if (ret != 0) | |
1191 | goto out_unlock; | |
1192 | ||
1193 | if (overlay->pfit_active) { | |
1194 | params->dst_y = ((((u32)put_image_rec->dst_y) << 12) / | |
722506f0 | 1195 | overlay->pfit_vscale_ratio); |
02e792fb DV |
1196 | /* shifting right rounds downwards, so add 1 */ |
1197 | params->dst_h = ((((u32)put_image_rec->dst_height) << 12) / | |
722506f0 | 1198 | overlay->pfit_vscale_ratio) + 1; |
02e792fb DV |
1199 | } else { |
1200 | params->dst_y = put_image_rec->dst_y; | |
1201 | params->dst_h = put_image_rec->dst_height; | |
1202 | } | |
1203 | params->dst_x = put_image_rec->dst_x; | |
1204 | params->dst_w = put_image_rec->dst_width; | |
1205 | ||
1206 | params->src_w = put_image_rec->src_width; | |
1207 | params->src_h = put_image_rec->src_height; | |
1208 | params->src_scan_w = put_image_rec->src_scan_width; | |
1209 | params->src_scan_h = put_image_rec->src_scan_height; | |
722506f0 CW |
1210 | if (params->src_scan_h > params->src_h || |
1211 | params->src_scan_w > params->src_w) { | |
02e792fb DV |
1212 | ret = -EINVAL; |
1213 | goto out_unlock; | |
1214 | } | |
1215 | ||
1216 | ret = check_overlay_src(dev, put_image_rec, new_bo); | |
1217 | if (ret != 0) | |
1218 | goto out_unlock; | |
1219 | params->format = put_image_rec->flags & ~I915_OVERLAY_FLAGS_MASK; | |
1220 | params->stride_Y = put_image_rec->stride_Y; | |
1221 | params->stride_UV = put_image_rec->stride_UV; | |
1222 | params->offset_Y = put_image_rec->offset_Y; | |
1223 | params->offset_U = put_image_rec->offset_U; | |
1224 | params->offset_V = put_image_rec->offset_V; | |
1225 | ||
1226 | /* Check scaling after src size to prevent a divide-by-zero. */ | |
1227 | ret = check_overlay_scaling(params); | |
1228 | if (ret != 0) | |
1229 | goto out_unlock; | |
1230 | ||
1231 | ret = intel_overlay_do_put_image(overlay, new_bo, params); | |
1232 | if (ret != 0) | |
1233 | goto out_unlock; | |
1234 | ||
1235 | mutex_unlock(&dev->struct_mutex); | |
1236 | mutex_unlock(&dev->mode_config.mutex); | |
1237 | ||
1238 | kfree(params); | |
1239 | ||
1240 | return 0; | |
1241 | ||
1242 | out_unlock: | |
1243 | mutex_unlock(&dev->struct_mutex); | |
1244 | mutex_unlock(&dev->mode_config.mutex); | |
05394f39 | 1245 | drm_gem_object_unreference_unlocked(&new_bo->base); |
915a428e | 1246 | out_free: |
02e792fb DV |
1247 | kfree(params); |
1248 | ||
1249 | return ret; | |
1250 | } | |
1251 | ||
1252 | static void update_reg_attrs(struct intel_overlay *overlay, | |
1253 | struct overlay_registers *regs) | |
1254 | { | |
1255 | regs->OCLRC0 = (overlay->contrast << 18) | (overlay->brightness & 0xff); | |
1256 | regs->OCLRC1 = overlay->saturation; | |
1257 | } | |
1258 | ||
1259 | static bool check_gamma_bounds(u32 gamma1, u32 gamma2) | |
1260 | { | |
1261 | int i; | |
1262 | ||
1263 | if (gamma1 & 0xff000000 || gamma2 & 0xff000000) | |
1264 | return false; | |
1265 | ||
1266 | for (i = 0; i < 3; i++) { | |
722506f0 | 1267 | if (((gamma1 >> i*8) & 0xff) >= ((gamma2 >> i*8) & 0xff)) |
02e792fb DV |
1268 | return false; |
1269 | } | |
1270 | ||
1271 | return true; | |
1272 | } | |
1273 | ||
1274 | static bool check_gamma5_errata(u32 gamma5) | |
1275 | { | |
1276 | int i; | |
1277 | ||
1278 | for (i = 0; i < 3; i++) { | |
1279 | if (((gamma5 >> i*8) & 0xff) == 0x80) | |
1280 | return false; | |
1281 | } | |
1282 | ||
1283 | return true; | |
1284 | } | |
1285 | ||
1286 | static int check_gamma(struct drm_intel_overlay_attrs *attrs) | |
1287 | { | |
722506f0 CW |
1288 | if (!check_gamma_bounds(0, attrs->gamma0) || |
1289 | !check_gamma_bounds(attrs->gamma0, attrs->gamma1) || | |
1290 | !check_gamma_bounds(attrs->gamma1, attrs->gamma2) || | |
1291 | !check_gamma_bounds(attrs->gamma2, attrs->gamma3) || | |
1292 | !check_gamma_bounds(attrs->gamma3, attrs->gamma4) || | |
1293 | !check_gamma_bounds(attrs->gamma4, attrs->gamma5) || | |
1294 | !check_gamma_bounds(attrs->gamma5, 0x00ffffff)) | |
02e792fb | 1295 | return -EINVAL; |
722506f0 | 1296 | |
02e792fb DV |
1297 | if (!check_gamma5_errata(attrs->gamma5)) |
1298 | return -EINVAL; | |
722506f0 | 1299 | |
02e792fb DV |
1300 | return 0; |
1301 | } | |
1302 | ||
1303 | int intel_overlay_attrs(struct drm_device *dev, void *data, | |
0206e353 | 1304 | struct drm_file *file_priv) |
02e792fb DV |
1305 | { |
1306 | struct drm_intel_overlay_attrs *attrs = data; | |
0206e353 | 1307 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb DV |
1308 | struct intel_overlay *overlay; |
1309 | struct overlay_registers *regs; | |
1310 | int ret; | |
1311 | ||
1312 | if (!dev_priv) { | |
1313 | DRM_ERROR("called with no initialization\n"); | |
1314 | return -EINVAL; | |
1315 | } | |
1316 | ||
1317 | overlay = dev_priv->overlay; | |
1318 | if (!overlay) { | |
1319 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1320 | return -ENODEV; | |
1321 | } | |
1322 | ||
1323 | mutex_lock(&dev->mode_config.mutex); | |
1324 | mutex_lock(&dev->struct_mutex); | |
1325 | ||
60fc332c | 1326 | ret = -EINVAL; |
02e792fb | 1327 | if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) { |
60fc332c | 1328 | attrs->color_key = overlay->color_key; |
02e792fb | 1329 | attrs->brightness = overlay->brightness; |
60fc332c | 1330 | attrs->contrast = overlay->contrast; |
02e792fb DV |
1331 | attrs->saturation = overlay->saturation; |
1332 | ||
a6c45cf0 | 1333 | if (!IS_GEN2(dev)) { |
02e792fb DV |
1334 | attrs->gamma0 = I915_READ(OGAMC0); |
1335 | attrs->gamma1 = I915_READ(OGAMC1); | |
1336 | attrs->gamma2 = I915_READ(OGAMC2); | |
1337 | attrs->gamma3 = I915_READ(OGAMC3); | |
1338 | attrs->gamma4 = I915_READ(OGAMC4); | |
1339 | attrs->gamma5 = I915_READ(OGAMC5); | |
1340 | } | |
02e792fb | 1341 | } else { |
60fc332c | 1342 | if (attrs->brightness < -128 || attrs->brightness > 127) |
02e792fb | 1343 | goto out_unlock; |
60fc332c | 1344 | if (attrs->contrast > 255) |
02e792fb | 1345 | goto out_unlock; |
60fc332c | 1346 | if (attrs->saturation > 1023) |
02e792fb | 1347 | goto out_unlock; |
02e792fb | 1348 | |
60fc332c CW |
1349 | overlay->color_key = attrs->color_key; |
1350 | overlay->brightness = attrs->brightness; | |
1351 | overlay->contrast = attrs->contrast; | |
1352 | overlay->saturation = attrs->saturation; | |
02e792fb | 1353 | |
8d74f656 | 1354 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
1355 | if (!regs) { |
1356 | ret = -ENOMEM; | |
1357 | goto out_unlock; | |
1358 | } | |
1359 | ||
1360 | update_reg_attrs(overlay, regs); | |
1361 | ||
9bb2ff73 | 1362 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
1363 | |
1364 | if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) { | |
a6c45cf0 | 1365 | if (IS_GEN2(dev)) |
02e792fb | 1366 | goto out_unlock; |
02e792fb DV |
1367 | |
1368 | if (overlay->active) { | |
1369 | ret = -EBUSY; | |
1370 | goto out_unlock; | |
1371 | } | |
1372 | ||
1373 | ret = check_gamma(attrs); | |
60fc332c | 1374 | if (ret) |
02e792fb DV |
1375 | goto out_unlock; |
1376 | ||
1377 | I915_WRITE(OGAMC0, attrs->gamma0); | |
1378 | I915_WRITE(OGAMC1, attrs->gamma1); | |
1379 | I915_WRITE(OGAMC2, attrs->gamma2); | |
1380 | I915_WRITE(OGAMC3, attrs->gamma3); | |
1381 | I915_WRITE(OGAMC4, attrs->gamma4); | |
1382 | I915_WRITE(OGAMC5, attrs->gamma5); | |
1383 | } | |
02e792fb DV |
1384 | } |
1385 | ||
60fc332c | 1386 | ret = 0; |
02e792fb DV |
1387 | out_unlock: |
1388 | mutex_unlock(&dev->struct_mutex); | |
1389 | mutex_unlock(&dev->mode_config.mutex); | |
1390 | ||
1391 | return ret; | |
1392 | } | |
1393 | ||
1394 | void intel_setup_overlay(struct drm_device *dev) | |
1395 | { | |
0206e353 | 1396 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb | 1397 | struct intel_overlay *overlay; |
05394f39 | 1398 | struct drm_i915_gem_object *reg_bo; |
02e792fb DV |
1399 | struct overlay_registers *regs; |
1400 | int ret; | |
1401 | ||
31578148 | 1402 | if (!HAS_OVERLAY(dev)) |
02e792fb DV |
1403 | return; |
1404 | ||
1405 | overlay = kzalloc(sizeof(struct intel_overlay), GFP_KERNEL); | |
1406 | if (!overlay) | |
1407 | return; | |
79d24273 CW |
1408 | |
1409 | mutex_lock(&dev->struct_mutex); | |
1410 | if (WARN_ON(dev_priv->overlay)) | |
1411 | goto out_free; | |
1412 | ||
02e792fb DV |
1413 | overlay->dev = dev; |
1414 | ||
ac52bc56 | 1415 | reg_bo = i915_gem_alloc_object(dev, PAGE_SIZE); |
02e792fb DV |
1416 | if (!reg_bo) |
1417 | goto out_free; | |
05394f39 | 1418 | overlay->reg_bo = reg_bo; |
02e792fb | 1419 | |
31578148 | 1420 | if (OVERLAY_NEEDS_PHYSICAL(dev)) { |
02e792fb | 1421 | ret = i915_gem_attach_phys_object(dev, reg_bo, |
6eeefaf3 | 1422 | I915_GEM_PHYS_OVERLAY_REGS, |
a2930128 | 1423 | PAGE_SIZE); |
0206e353 AJ |
1424 | if (ret) { |
1425 | DRM_ERROR("failed to attach phys overlay regs\n"); | |
1426 | goto out_free_bo; | |
1427 | } | |
05394f39 | 1428 | overlay->flip_addr = reg_bo->phys_obj->handle->busaddr; |
31578148 | 1429 | } else { |
75e9e915 | 1430 | ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true); |
02e792fb | 1431 | if (ret) { |
0206e353 AJ |
1432 | DRM_ERROR("failed to pin overlay register bo\n"); |
1433 | goto out_free_bo; | |
1434 | } | |
05394f39 | 1435 | overlay->flip_addr = reg_bo->gtt_offset; |
0ddc1289 CW |
1436 | |
1437 | ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); | |
1438 | if (ret) { | |
0206e353 AJ |
1439 | DRM_ERROR("failed to move overlay register bo into the GTT\n"); |
1440 | goto out_unpin_bo; | |
1441 | } | |
02e792fb DV |
1442 | } |
1443 | ||
1444 | /* init all values */ | |
1445 | overlay->color_key = 0x0101fe; | |
1446 | overlay->brightness = -19; | |
1447 | overlay->contrast = 75; | |
1448 | overlay->saturation = 146; | |
1449 | ||
8d74f656 | 1450 | regs = intel_overlay_map_regs(overlay); |
02e792fb | 1451 | if (!regs) |
79d24273 | 1452 | goto out_unpin_bo; |
02e792fb DV |
1453 | |
1454 | memset(regs, 0, sizeof(struct overlay_registers)); | |
1455 | update_polyphase_filter(regs); | |
02e792fb DV |
1456 | update_reg_attrs(overlay, regs); |
1457 | ||
9bb2ff73 | 1458 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
1459 | |
1460 | dev_priv->overlay = overlay; | |
79d24273 | 1461 | mutex_unlock(&dev->struct_mutex); |
02e792fb DV |
1462 | DRM_INFO("initialized overlay support\n"); |
1463 | return; | |
1464 | ||
0ddc1289 | 1465 | out_unpin_bo: |
79d24273 CW |
1466 | if (!OVERLAY_NEEDS_PHYSICAL(dev)) |
1467 | i915_gem_object_unpin(reg_bo); | |
02e792fb | 1468 | out_free_bo: |
05394f39 | 1469 | drm_gem_object_unreference(®_bo->base); |
02e792fb | 1470 | out_free: |
79d24273 | 1471 | mutex_unlock(&dev->struct_mutex); |
02e792fb DV |
1472 | kfree(overlay); |
1473 | return; | |
1474 | } | |
1475 | ||
1476 | void intel_cleanup_overlay(struct drm_device *dev) | |
1477 | { | |
722506f0 | 1478 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb | 1479 | |
62cf4e6f CW |
1480 | if (!dev_priv->overlay) |
1481 | return; | |
02e792fb | 1482 | |
62cf4e6f CW |
1483 | /* The bo's should be free'd by the generic code already. |
1484 | * Furthermore modesetting teardown happens beforehand so the | |
1485 | * hardware should be off already */ | |
1486 | BUG_ON(dev_priv->overlay->active); | |
1487 | ||
1488 | drm_gem_object_unreference_unlocked(&dev_priv->overlay->reg_bo->base); | |
1489 | kfree(dev_priv->overlay); | |
02e792fb | 1490 | } |
6ef3d427 | 1491 | |
3bd3c932 CW |
1492 | #ifdef CONFIG_DEBUG_FS |
1493 | #include <linux/seq_file.h> | |
1494 | ||
6ef3d427 CW |
1495 | struct intel_overlay_error_state { |
1496 | struct overlay_registers regs; | |
1497 | unsigned long base; | |
1498 | u32 dovsta; | |
1499 | u32 isr; | |
1500 | }; | |
1501 | ||
3bd3c932 | 1502 | static struct overlay_registers * |
c48c43e4 | 1503 | intel_overlay_map_regs_atomic(struct intel_overlay *overlay) |
3bd3c932 | 1504 | { |
c48c43e4 | 1505 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; |
3bd3c932 CW |
1506 | struct overlay_registers *regs; |
1507 | ||
1508 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
1509 | regs = overlay->reg_bo->phys_obj->handle->vaddr; | |
1510 | else | |
1511 | regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping, | |
c48c43e4 | 1512 | overlay->reg_bo->gtt_offset); |
3bd3c932 CW |
1513 | |
1514 | return regs; | |
1515 | } | |
1516 | ||
1517 | static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay, | |
3bd3c932 CW |
1518 | struct overlay_registers *regs) |
1519 | { | |
1520 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
c48c43e4 | 1521 | io_mapping_unmap_atomic(regs); |
3bd3c932 CW |
1522 | } |
1523 | ||
1524 | ||
6ef3d427 CW |
1525 | struct intel_overlay_error_state * |
1526 | intel_overlay_capture_error_state(struct drm_device *dev) | |
1527 | { | |
0206e353 | 1528 | drm_i915_private_t *dev_priv = dev->dev_private; |
6ef3d427 CW |
1529 | struct intel_overlay *overlay = dev_priv->overlay; |
1530 | struct intel_overlay_error_state *error; | |
1531 | struct overlay_registers __iomem *regs; | |
1532 | ||
1533 | if (!overlay || !overlay->active) | |
1534 | return NULL; | |
1535 | ||
1536 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
1537 | if (error == NULL) | |
1538 | return NULL; | |
1539 | ||
1540 | error->dovsta = I915_READ(DOVSTA); | |
1541 | error->isr = I915_READ(ISR); | |
31578148 | 1542 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) |
6ef3d427 | 1543 | error->base = (long) overlay->reg_bo->phys_obj->handle->vaddr; |
31578148 CW |
1544 | else |
1545 | error->base = (long) overlay->reg_bo->gtt_offset; | |
6ef3d427 CW |
1546 | |
1547 | regs = intel_overlay_map_regs_atomic(overlay); | |
1548 | if (!regs) | |
1549 | goto err; | |
1550 | ||
1551 | memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); | |
c48c43e4 | 1552 | intel_overlay_unmap_regs_atomic(overlay, regs); |
6ef3d427 CW |
1553 | |
1554 | return error; | |
1555 | ||
1556 | err: | |
1557 | kfree(error); | |
1558 | return NULL; | |
1559 | } | |
1560 | ||
1561 | void | |
1562 | intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error) | |
1563 | { | |
1564 | seq_printf(m, "Overlay, status: 0x%08x, interrupt: 0x%08x\n", | |
1565 | error->dovsta, error->isr); | |
1566 | seq_printf(m, " Register file at 0x%08lx:\n", | |
1567 | error->base); | |
1568 | ||
1569 | #define P(x) seq_printf(m, " " #x ": 0x%08x\n", error->regs.x) | |
1570 | P(OBUF_0Y); | |
1571 | P(OBUF_1Y); | |
1572 | P(OBUF_0U); | |
1573 | P(OBUF_0V); | |
1574 | P(OBUF_1U); | |
1575 | P(OBUF_1V); | |
1576 | P(OSTRIDE); | |
1577 | P(YRGB_VPH); | |
1578 | P(UV_VPH); | |
1579 | P(HORZ_PH); | |
1580 | P(INIT_PHS); | |
1581 | P(DWINPOS); | |
1582 | P(DWINSZ); | |
1583 | P(SWIDTH); | |
1584 | P(SWIDTHSW); | |
1585 | P(SHEIGHT); | |
1586 | P(YRGBSCALE); | |
1587 | P(UVSCALE); | |
1588 | P(OCLRC0); | |
1589 | P(OCLRC1); | |
1590 | P(DCLRKV); | |
1591 | P(DCLRKM); | |
1592 | P(SCLRKVH); | |
1593 | P(SCLRKVL); | |
1594 | P(SCLRKEN); | |
1595 | P(OCONFIG); | |
1596 | P(OCMD); | |
1597 | P(OSTART_0Y); | |
1598 | P(OSTART_1Y); | |
1599 | P(OSTART_0U); | |
1600 | P(OSTART_0V); | |
1601 | P(OSTART_1U); | |
1602 | P(OSTART_1V); | |
1603 | P(OTILEOFF_0Y); | |
1604 | P(OTILEOFF_1Y); | |
1605 | P(OTILEOFF_0U); | |
1606 | P(OTILEOFF_0V); | |
1607 | P(OTILEOFF_1U); | |
1608 | P(OTILEOFF_1V); | |
1609 | P(FASTHSCALE); | |
1610 | P(UVSCALEV); | |
1611 | #undef P | |
1612 | } | |
3bd3c932 | 1613 | #endif |