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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 | */ | |
e167976e AM |
28 | |
29 | #include <linux/seq_file.h> | |
02e792fb DV |
30 | #include "drmP.h" |
31 | #include "drm.h" | |
32 | #include "i915_drm.h" | |
33 | #include "i915_drv.h" | |
34 | #include "i915_reg.h" | |
35 | #include "intel_drv.h" | |
36 | ||
37 | /* Limits for overlay size. According to intel doc, the real limits are: | |
38 | * Y width: 4095, UV width (planar): 2047, Y height: 2047, | |
39 | * UV width (planar): * 1023. But the xorg thinks 2048 for height and width. Use | |
40 | * the mininum of both. */ | |
41 | #define IMAGE_MAX_WIDTH 2048 | |
42 | #define IMAGE_MAX_HEIGHT 2046 /* 2 * 1023 */ | |
43 | /* on 830 and 845 these large limits result in the card hanging */ | |
44 | #define IMAGE_MAX_WIDTH_LEGACY 1024 | |
45 | #define IMAGE_MAX_HEIGHT_LEGACY 1088 | |
46 | ||
47 | /* overlay register definitions */ | |
48 | /* OCMD register */ | |
49 | #define OCMD_TILED_SURFACE (0x1<<19) | |
50 | #define OCMD_MIRROR_MASK (0x3<<17) | |
51 | #define OCMD_MIRROR_MODE (0x3<<17) | |
52 | #define OCMD_MIRROR_HORIZONTAL (0x1<<17) | |
53 | #define OCMD_MIRROR_VERTICAL (0x2<<17) | |
54 | #define OCMD_MIRROR_BOTH (0x3<<17) | |
55 | #define OCMD_BYTEORDER_MASK (0x3<<14) /* zero for YUYV or FOURCC YUY2 */ | |
56 | #define OCMD_UV_SWAP (0x1<<14) /* YVYU */ | |
57 | #define OCMD_Y_SWAP (0x2<<14) /* UYVY or FOURCC UYVY */ | |
58 | #define OCMD_Y_AND_UV_SWAP (0x3<<14) /* VYUY */ | |
59 | #define OCMD_SOURCE_FORMAT_MASK (0xf<<10) | |
60 | #define OCMD_RGB_888 (0x1<<10) /* not in i965 Intel docs */ | |
61 | #define OCMD_RGB_555 (0x2<<10) /* not in i965 Intel docs */ | |
62 | #define OCMD_RGB_565 (0x3<<10) /* not in i965 Intel docs */ | |
63 | #define OCMD_YUV_422_PACKED (0x8<<10) | |
64 | #define OCMD_YUV_411_PACKED (0x9<<10) /* not in i965 Intel docs */ | |
65 | #define OCMD_YUV_420_PLANAR (0xc<<10) | |
66 | #define OCMD_YUV_422_PLANAR (0xd<<10) | |
67 | #define OCMD_YUV_410_PLANAR (0xe<<10) /* also 411 */ | |
68 | #define OCMD_TVSYNCFLIP_PARITY (0x1<<9) | |
69 | #define OCMD_TVSYNCFLIP_ENABLE (0x1<<7) | |
d7961364 | 70 | #define OCMD_BUF_TYPE_MASK (0x1<<5) |
02e792fb DV |
71 | #define OCMD_BUF_TYPE_FRAME (0x0<<5) |
72 | #define OCMD_BUF_TYPE_FIELD (0x1<<5) | |
73 | #define OCMD_TEST_MODE (0x1<<4) | |
74 | #define OCMD_BUFFER_SELECT (0x3<<2) | |
75 | #define OCMD_BUFFER0 (0x0<<2) | |
76 | #define OCMD_BUFFER1 (0x1<<2) | |
77 | #define OCMD_FIELD_SELECT (0x1<<2) | |
78 | #define OCMD_FIELD0 (0x0<<1) | |
79 | #define OCMD_FIELD1 (0x1<<1) | |
80 | #define OCMD_ENABLE (0x1<<0) | |
81 | ||
82 | /* OCONFIG register */ | |
83 | #define OCONF_PIPE_MASK (0x1<<18) | |
84 | #define OCONF_PIPE_A (0x0<<18) | |
85 | #define OCONF_PIPE_B (0x1<<18) | |
86 | #define OCONF_GAMMA2_ENABLE (0x1<<16) | |
87 | #define OCONF_CSC_MODE_BT601 (0x0<<5) | |
88 | #define OCONF_CSC_MODE_BT709 (0x1<<5) | |
89 | #define OCONF_CSC_BYPASS (0x1<<4) | |
90 | #define OCONF_CC_OUT_8BIT (0x1<<3) | |
91 | #define OCONF_TEST_MODE (0x1<<2) | |
92 | #define OCONF_THREE_LINE_BUFFER (0x1<<0) | |
93 | #define OCONF_TWO_LINE_BUFFER (0x0<<0) | |
94 | ||
95 | /* DCLRKM (dst-key) register */ | |
96 | #define DST_KEY_ENABLE (0x1<<31) | |
97 | #define CLK_RGB24_MASK 0x0 | |
98 | #define CLK_RGB16_MASK 0x070307 | |
99 | #define CLK_RGB15_MASK 0x070707 | |
100 | #define CLK_RGB8I_MASK 0xffffff | |
101 | ||
102 | #define RGB16_TO_COLORKEY(c) \ | |
103 | (((c & 0xF800) << 8) | ((c & 0x07E0) << 5) | ((c & 0x001F) << 3)) | |
104 | #define RGB15_TO_COLORKEY(c) \ | |
105 | (((c & 0x7c00) << 9) | ((c & 0x03E0) << 6) | ((c & 0x001F) << 3)) | |
106 | ||
107 | /* overlay flip addr flag */ | |
108 | #define OFC_UPDATE 0x1 | |
109 | ||
110 | /* polyphase filter coefficients */ | |
111 | #define N_HORIZ_Y_TAPS 5 | |
112 | #define N_VERT_Y_TAPS 3 | |
113 | #define N_HORIZ_UV_TAPS 3 | |
114 | #define N_VERT_UV_TAPS 3 | |
115 | #define N_PHASES 17 | |
116 | #define MAX_TAPS 5 | |
117 | ||
118 | /* memory bufferd overlay registers */ | |
119 | struct overlay_registers { | |
120 | u32 OBUF_0Y; | |
121 | u32 OBUF_1Y; | |
122 | u32 OBUF_0U; | |
123 | u32 OBUF_0V; | |
124 | u32 OBUF_1U; | |
125 | u32 OBUF_1V; | |
126 | u32 OSTRIDE; | |
127 | u32 YRGB_VPH; | |
128 | u32 UV_VPH; | |
129 | u32 HORZ_PH; | |
130 | u32 INIT_PHS; | |
131 | u32 DWINPOS; | |
132 | u32 DWINSZ; | |
133 | u32 SWIDTH; | |
134 | u32 SWIDTHSW; | |
135 | u32 SHEIGHT; | |
136 | u32 YRGBSCALE; | |
137 | u32 UVSCALE; | |
138 | u32 OCLRC0; | |
139 | u32 OCLRC1; | |
140 | u32 DCLRKV; | |
141 | u32 DCLRKM; | |
142 | u32 SCLRKVH; | |
143 | u32 SCLRKVL; | |
144 | u32 SCLRKEN; | |
145 | u32 OCONFIG; | |
146 | u32 OCMD; | |
147 | u32 RESERVED1; /* 0x6C */ | |
148 | u32 OSTART_0Y; | |
149 | u32 OSTART_1Y; | |
150 | u32 OSTART_0U; | |
151 | u32 OSTART_0V; | |
152 | u32 OSTART_1U; | |
153 | u32 OSTART_1V; | |
154 | u32 OTILEOFF_0Y; | |
155 | u32 OTILEOFF_1Y; | |
156 | u32 OTILEOFF_0U; | |
157 | u32 OTILEOFF_0V; | |
158 | u32 OTILEOFF_1U; | |
159 | u32 OTILEOFF_1V; | |
160 | u32 FASTHSCALE; /* 0xA0 */ | |
161 | u32 UVSCALEV; /* 0xA4 */ | |
162 | u32 RESERVEDC[(0x200 - 0xA8) / 4]; /* 0xA8 - 0x1FC */ | |
163 | u16 Y_VCOEFS[N_VERT_Y_TAPS * N_PHASES]; /* 0x200 */ | |
164 | u16 RESERVEDD[0x100 / 2 - N_VERT_Y_TAPS * N_PHASES]; | |
165 | u16 Y_HCOEFS[N_HORIZ_Y_TAPS * N_PHASES]; /* 0x300 */ | |
166 | u16 RESERVEDE[0x200 / 2 - N_HORIZ_Y_TAPS * N_PHASES]; | |
167 | u16 UV_VCOEFS[N_VERT_UV_TAPS * N_PHASES]; /* 0x500 */ | |
168 | u16 RESERVEDF[0x100 / 2 - N_VERT_UV_TAPS * N_PHASES]; | |
169 | u16 UV_HCOEFS[N_HORIZ_UV_TAPS * N_PHASES]; /* 0x600 */ | |
170 | u16 RESERVEDG[0x100 / 2 - N_HORIZ_UV_TAPS * N_PHASES]; | |
171 | }; | |
172 | ||
23f09ce3 CW |
173 | struct intel_overlay { |
174 | struct drm_device *dev; | |
175 | struct intel_crtc *crtc; | |
176 | struct drm_i915_gem_object *vid_bo; | |
177 | struct drm_i915_gem_object *old_vid_bo; | |
178 | int active; | |
179 | int pfit_active; | |
180 | u32 pfit_vscale_ratio; /* shifted-point number, (1<<12) == 1.0 */ | |
181 | u32 color_key; | |
182 | u32 brightness, contrast, saturation; | |
183 | u32 old_xscale, old_yscale; | |
184 | /* register access */ | |
185 | u32 flip_addr; | |
186 | struct drm_i915_gem_object *reg_bo; | |
187 | /* flip handling */ | |
188 | uint32_t last_flip_req; | |
b303cf95 | 189 | void (*flip_tail)(struct intel_overlay *); |
23f09ce3 | 190 | }; |
02e792fb | 191 | |
8d74f656 CW |
192 | static struct overlay_registers * |
193 | intel_overlay_map_regs(struct intel_overlay *overlay) | |
02e792fb DV |
194 | { |
195 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; | |
196 | struct overlay_registers *regs; | |
197 | ||
9bb2ff73 | 198 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) |
8d74f656 | 199 | regs = overlay->reg_bo->phys_obj->handle->vaddr; |
9bb2ff73 | 200 | else |
8d74f656 CW |
201 | regs = io_mapping_map_wc(dev_priv->mm.gtt_mapping, |
202 | overlay->reg_bo->gtt_offset); | |
02e792fb | 203 | |
9bb2ff73 | 204 | return regs; |
8d74f656 | 205 | } |
02e792fb | 206 | |
9bb2ff73 CW |
207 | static void intel_overlay_unmap_regs(struct intel_overlay *overlay, |
208 | struct overlay_registers *regs) | |
8d74f656 CW |
209 | { |
210 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
9bb2ff73 | 211 | io_mapping_unmap(regs); |
02e792fb DV |
212 | } |
213 | ||
b6c028e0 | 214 | static int intel_overlay_do_wait_request(struct intel_overlay *overlay, |
8dc5d147 | 215 | struct drm_i915_gem_request *request, |
b6c028e0 | 216 | bool interruptible, |
b303cf95 | 217 | void (*tail)(struct intel_overlay *)) |
02e792fb DV |
218 | { |
219 | struct drm_device *dev = overlay->dev; | |
852835f3 | 220 | drm_i915_private_t *dev_priv = dev->dev_private; |
b6c028e0 | 221 | int ret; |
02e792fb | 222 | |
b303cf95 | 223 | BUG_ON(overlay->last_flip_req); |
3cce469c CW |
224 | ret = i915_add_request(dev, NULL, request, &dev_priv->render_ring); |
225 | if (ret) { | |
226 | kfree(request); | |
227 | return ret; | |
228 | } | |
229 | overlay->last_flip_req = request->seqno; | |
b303cf95 | 230 | overlay->flip_tail = tail; |
852835f3 | 231 | ret = i915_do_wait_request(dev, |
722506f0 CW |
232 | overlay->last_flip_req, true, |
233 | &dev_priv->render_ring); | |
b6c028e0 | 234 | if (ret) |
03f77ea5 | 235 | return ret; |
02e792fb | 236 | |
03f77ea5 | 237 | overlay->last_flip_req = 0; |
02e792fb | 238 | return 0; |
02e792fb DV |
239 | } |
240 | ||
106dadac CW |
241 | /* Workaround for i830 bug where pipe a must be enable to change control regs */ |
242 | static int | |
243 | i830_activate_pipe_a(struct drm_device *dev) | |
02e792fb | 244 | { |
106dadac CW |
245 | drm_i915_private_t *dev_priv = dev->dev_private; |
246 | struct intel_crtc *crtc; | |
247 | struct drm_crtc_helper_funcs *crtc_funcs; | |
248 | struct drm_display_mode vesa_640x480 = { | |
249 | DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656, | |
250 | 752, 800, 0, 480, 489, 492, 525, 0, | |
251 | DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) | |
252 | }, *mode; | |
253 | ||
254 | crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[0]); | |
255 | if (crtc->dpms_mode == DRM_MODE_DPMS_ON) | |
256 | return 0; | |
02e792fb | 257 | |
106dadac | 258 | /* most i8xx have pipe a forced on, so don't trust dpms mode */ |
5eddb70b | 259 | if (I915_READ(PIPEACONF) & PIPECONF_ENABLE) |
106dadac | 260 | return 0; |
02e792fb | 261 | |
106dadac CW |
262 | crtc_funcs = crtc->base.helper_private; |
263 | if (crtc_funcs->dpms == NULL) | |
264 | return 0; | |
265 | ||
266 | DRM_DEBUG_DRIVER("Enabling pipe A in order to enable overlay\n"); | |
267 | ||
268 | mode = drm_mode_duplicate(dev, &vesa_640x480); | |
269 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); | |
270 | if(!drm_crtc_helper_set_mode(&crtc->base, mode, | |
271 | crtc->base.x, crtc->base.y, | |
272 | crtc->base.fb)) | |
273 | return 0; | |
274 | ||
275 | crtc_funcs->dpms(&crtc->base, DRM_MODE_DPMS_ON); | |
276 | return 1; | |
277 | } | |
278 | ||
279 | static void | |
280 | i830_deactivate_pipe_a(struct drm_device *dev) | |
281 | { | |
282 | drm_i915_private_t *dev_priv = dev->dev_private; | |
283 | struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[0]; | |
284 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
285 | ||
286 | crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF); | |
02e792fb DV |
287 | } |
288 | ||
289 | /* overlay needs to be disable in OCMD reg */ | |
290 | static int intel_overlay_on(struct intel_overlay *overlay) | |
291 | { | |
292 | struct drm_device *dev = overlay->dev; | |
e1f99ce6 | 293 | struct drm_i915_private *dev_priv = dev->dev_private; |
8dc5d147 | 294 | struct drm_i915_gem_request *request; |
106dadac | 295 | int pipe_a_quirk = 0; |
02e792fb | 296 | int ret; |
02e792fb DV |
297 | |
298 | BUG_ON(overlay->active); | |
03f77ea5 | 299 | overlay->active = 1; |
b6c028e0 | 300 | |
106dadac CW |
301 | if (IS_I830(dev)) { |
302 | pipe_a_quirk = i830_activate_pipe_a(dev); | |
303 | if (pipe_a_quirk < 0) | |
304 | return pipe_a_quirk; | |
305 | } | |
306 | ||
8dc5d147 | 307 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
106dadac CW |
308 | if (request == NULL) { |
309 | ret = -ENOMEM; | |
310 | goto out; | |
311 | } | |
03f77ea5 | 312 | |
e1f99ce6 CW |
313 | ret = BEGIN_LP_RING(4); |
314 | if (ret) { | |
315 | kfree(request); | |
316 | goto out; | |
317 | } | |
318 | ||
02e792fb DV |
319 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_ON); |
320 | OUT_RING(overlay->flip_addr | OFC_UPDATE); | |
321 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); | |
322 | OUT_RING(MI_NOOP); | |
323 | ADVANCE_LP_RING(); | |
324 | ||
b303cf95 | 325 | ret = intel_overlay_do_wait_request(overlay, request, true, NULL); |
106dadac CW |
326 | out: |
327 | if (pipe_a_quirk) | |
328 | i830_deactivate_pipe_a(dev); | |
02e792fb | 329 | |
106dadac | 330 | return ret; |
02e792fb DV |
331 | } |
332 | ||
333 | /* overlay needs to be enabled in OCMD reg */ | |
8dc5d147 CW |
334 | static int intel_overlay_continue(struct intel_overlay *overlay, |
335 | bool load_polyphase_filter) | |
02e792fb DV |
336 | { |
337 | struct drm_device *dev = overlay->dev; | |
338 | drm_i915_private_t *dev_priv = dev->dev_private; | |
8dc5d147 | 339 | struct drm_i915_gem_request *request; |
02e792fb DV |
340 | u32 flip_addr = overlay->flip_addr; |
341 | u32 tmp; | |
e1f99ce6 | 342 | int ret; |
02e792fb DV |
343 | |
344 | BUG_ON(!overlay->active); | |
345 | ||
8dc5d147 CW |
346 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
347 | if (request == NULL) | |
348 | return -ENOMEM; | |
349 | ||
02e792fb DV |
350 | if (load_polyphase_filter) |
351 | flip_addr |= OFC_UPDATE; | |
352 | ||
353 | /* check for underruns */ | |
354 | tmp = I915_READ(DOVSTA); | |
355 | if (tmp & (1 << 17)) | |
356 | DRM_DEBUG("overlay underrun, DOVSTA: %x\n", tmp); | |
357 | ||
e1f99ce6 CW |
358 | ret = BEGIN_LP_RING(2); |
359 | if (ret) { | |
360 | kfree(request); | |
361 | return ret; | |
362 | } | |
02e792fb DV |
363 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); |
364 | OUT_RING(flip_addr); | |
5a5a0c64 DV |
365 | ADVANCE_LP_RING(); |
366 | ||
3cce469c CW |
367 | ret = i915_add_request(dev, NULL, request, &dev_priv->render_ring); |
368 | if (ret) { | |
369 | kfree(request); | |
370 | return ret; | |
371 | } | |
372 | ||
373 | overlay->last_flip_req = request->seqno; | |
8dc5d147 | 374 | return 0; |
5a5a0c64 DV |
375 | } |
376 | ||
b303cf95 | 377 | static void intel_overlay_release_old_vid_tail(struct intel_overlay *overlay) |
5a5a0c64 | 378 | { |
05394f39 | 379 | struct drm_i915_gem_object *obj = overlay->old_vid_bo; |
5a5a0c64 | 380 | |
b303cf95 | 381 | i915_gem_object_unpin(obj); |
05394f39 | 382 | drm_gem_object_unreference(&obj->base); |
5a5a0c64 | 383 | |
b303cf95 CW |
384 | overlay->old_vid_bo = NULL; |
385 | } | |
03f77ea5 | 386 | |
b303cf95 CW |
387 | static void intel_overlay_off_tail(struct intel_overlay *overlay) |
388 | { | |
05394f39 | 389 | struct drm_i915_gem_object *obj = overlay->vid_bo; |
02e792fb | 390 | |
b303cf95 CW |
391 | /* never have the overlay hw on without showing a frame */ |
392 | BUG_ON(!overlay->vid_bo); | |
02e792fb | 393 | |
b303cf95 | 394 | i915_gem_object_unpin(obj); |
05394f39 | 395 | drm_gem_object_unreference(&obj->base); |
b303cf95 | 396 | overlay->vid_bo = NULL; |
03f77ea5 | 397 | |
b303cf95 CW |
398 | overlay->crtc->overlay = NULL; |
399 | overlay->crtc = NULL; | |
400 | overlay->active = 0; | |
02e792fb DV |
401 | } |
402 | ||
403 | /* overlay needs to be disabled in OCMD reg */ | |
5dcdbcb0 CW |
404 | static int intel_overlay_off(struct intel_overlay *overlay, |
405 | bool interruptible) | |
02e792fb | 406 | { |
02e792fb | 407 | struct drm_device *dev = overlay->dev; |
e1f99ce6 | 408 | struct drm_i915_private *dev_priv = dev->dev_private; |
8dc5d147 CW |
409 | u32 flip_addr = overlay->flip_addr; |
410 | struct drm_i915_gem_request *request; | |
e1f99ce6 | 411 | int ret; |
02e792fb DV |
412 | |
413 | BUG_ON(!overlay->active); | |
414 | ||
8dc5d147 CW |
415 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
416 | if (request == NULL) | |
417 | return -ENOMEM; | |
418 | ||
02e792fb DV |
419 | /* According to intel docs the overlay hw may hang (when switching |
420 | * off) without loading the filter coeffs. It is however unclear whether | |
421 | * this applies to the disabling of the overlay or to the switching off | |
422 | * of the hw. Do it in both cases */ | |
423 | flip_addr |= OFC_UPDATE; | |
424 | ||
e1f99ce6 CW |
425 | ret = BEGIN_LP_RING(6); |
426 | if (ret) { | |
427 | kfree(request); | |
428 | return ret; | |
429 | } | |
02e792fb | 430 | /* wait for overlay to go idle */ |
02e792fb DV |
431 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE); |
432 | OUT_RING(flip_addr); | |
722506f0 | 433 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
02e792fb | 434 | /* turn overlay off */ |
722506f0 | 435 | OUT_RING(MI_OVERLAY_FLIP | MI_OVERLAY_OFF); |
02e792fb | 436 | OUT_RING(flip_addr); |
722506f0 | 437 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
02e792fb DV |
438 | ADVANCE_LP_RING(); |
439 | ||
5dcdbcb0 | 440 | return intel_overlay_do_wait_request(overlay, request, interruptible, |
b303cf95 | 441 | intel_overlay_off_tail); |
12ca45fe DV |
442 | } |
443 | ||
03f77ea5 DV |
444 | /* recover from an interruption due to a signal |
445 | * We have to be careful not to repeat work forever an make forward progess. */ | |
5dcdbcb0 CW |
446 | static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay, |
447 | bool interruptible) | |
03f77ea5 DV |
448 | { |
449 | struct drm_device *dev = overlay->dev; | |
852835f3 | 450 | drm_i915_private_t *dev_priv = dev->dev_private; |
03f77ea5 | 451 | int ret; |
03f77ea5 | 452 | |
b303cf95 CW |
453 | if (overlay->last_flip_req == 0) |
454 | return 0; | |
03f77ea5 | 455 | |
852835f3 | 456 | ret = i915_do_wait_request(dev, overlay->last_flip_req, |
722506f0 | 457 | interruptible, &dev_priv->render_ring); |
b6c028e0 | 458 | if (ret) |
03f77ea5 DV |
459 | return ret; |
460 | ||
b303cf95 CW |
461 | if (overlay->flip_tail) |
462 | overlay->flip_tail(overlay); | |
03f77ea5 | 463 | |
03f77ea5 DV |
464 | overlay->last_flip_req = 0; |
465 | return 0; | |
466 | } | |
467 | ||
5a5a0c64 DV |
468 | /* Wait for pending overlay flip and release old frame. |
469 | * Needs to be called before the overlay register are changed | |
8d74f656 CW |
470 | * via intel_overlay_(un)map_regs |
471 | */ | |
02e792fb DV |
472 | static int intel_overlay_release_old_vid(struct intel_overlay *overlay) |
473 | { | |
5cd68c98 CW |
474 | struct drm_device *dev = overlay->dev; |
475 | drm_i915_private_t *dev_priv = dev->dev_private; | |
02e792fb | 476 | int ret; |
02e792fb | 477 | |
5cd68c98 CW |
478 | /* Only wait if there is actually an old frame to release to |
479 | * guarantee forward progress. | |
480 | */ | |
03f77ea5 DV |
481 | if (!overlay->old_vid_bo) |
482 | return 0; | |
483 | ||
5cd68c98 | 484 | if (I915_READ(ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT) { |
8dc5d147 | 485 | struct drm_i915_gem_request *request; |
02e792fb | 486 | |
5cd68c98 | 487 | /* synchronous slowpath */ |
8dc5d147 CW |
488 | request = kzalloc(sizeof(*request), GFP_KERNEL); |
489 | if (request == NULL) | |
490 | return -ENOMEM; | |
02e792fb | 491 | |
e1f99ce6 CW |
492 | ret = BEGIN_LP_RING(2); |
493 | if (ret) { | |
494 | kfree(request); | |
495 | return ret; | |
496 | } | |
497 | ||
5cd68c98 CW |
498 | OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP); |
499 | OUT_RING(MI_NOOP); | |
500 | ADVANCE_LP_RING(); | |
501 | ||
8dc5d147 | 502 | ret = intel_overlay_do_wait_request(overlay, request, true, |
b303cf95 | 503 | intel_overlay_release_old_vid_tail); |
5cd68c98 CW |
504 | if (ret) |
505 | return ret; | |
506 | } | |
02e792fb | 507 | |
5cd68c98 | 508 | intel_overlay_release_old_vid_tail(overlay); |
02e792fb DV |
509 | return 0; |
510 | } | |
511 | ||
512 | struct put_image_params { | |
513 | int format; | |
514 | short dst_x; | |
515 | short dst_y; | |
516 | short dst_w; | |
517 | short dst_h; | |
518 | short src_w; | |
519 | short src_scan_h; | |
520 | short src_scan_w; | |
521 | short src_h; | |
522 | short stride_Y; | |
523 | short stride_UV; | |
524 | int offset_Y; | |
525 | int offset_U; | |
526 | int offset_V; | |
527 | }; | |
528 | ||
529 | static int packed_depth_bytes(u32 format) | |
530 | { | |
531 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
532 | case I915_OVERLAY_YUV422: |
533 | return 4; | |
534 | case I915_OVERLAY_YUV411: | |
535 | /* return 6; not implemented */ | |
536 | default: | |
537 | return -EINVAL; | |
02e792fb DV |
538 | } |
539 | } | |
540 | ||
541 | static int packed_width_bytes(u32 format, short width) | |
542 | { | |
543 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
544 | case I915_OVERLAY_YUV422: |
545 | return width << 1; | |
546 | default: | |
547 | return -EINVAL; | |
02e792fb DV |
548 | } |
549 | } | |
550 | ||
551 | static int uv_hsubsampling(u32 format) | |
552 | { | |
553 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
554 | case I915_OVERLAY_YUV422: |
555 | case I915_OVERLAY_YUV420: | |
556 | return 2; | |
557 | case I915_OVERLAY_YUV411: | |
558 | case I915_OVERLAY_YUV410: | |
559 | return 4; | |
560 | default: | |
561 | return -EINVAL; | |
02e792fb DV |
562 | } |
563 | } | |
564 | ||
565 | static int uv_vsubsampling(u32 format) | |
566 | { | |
567 | switch (format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
568 | case I915_OVERLAY_YUV420: |
569 | case I915_OVERLAY_YUV410: | |
570 | return 2; | |
571 | case I915_OVERLAY_YUV422: | |
572 | case I915_OVERLAY_YUV411: | |
573 | return 1; | |
574 | default: | |
575 | return -EINVAL; | |
02e792fb DV |
576 | } |
577 | } | |
578 | ||
579 | static u32 calc_swidthsw(struct drm_device *dev, u32 offset, u32 width) | |
580 | { | |
581 | u32 mask, shift, ret; | |
a6c45cf0 | 582 | if (IS_GEN2(dev)) { |
02e792fb DV |
583 | mask = 0x1f; |
584 | shift = 5; | |
a6c45cf0 CW |
585 | } else { |
586 | mask = 0x3f; | |
587 | shift = 6; | |
02e792fb DV |
588 | } |
589 | ret = ((offset + width + mask) >> shift) - (offset >> shift); | |
a6c45cf0 | 590 | if (!IS_GEN2(dev)) |
02e792fb DV |
591 | ret <<= 1; |
592 | ret -=1; | |
593 | return ret << 2; | |
594 | } | |
595 | ||
596 | static const u16 y_static_hcoeffs[N_HORIZ_Y_TAPS * N_PHASES] = { | |
597 | 0x3000, 0xb4a0, 0x1930, 0x1920, 0xb4a0, | |
598 | 0x3000, 0xb500, 0x19d0, 0x1880, 0xb440, | |
599 | 0x3000, 0xb540, 0x1a88, 0x2f80, 0xb3e0, | |
600 | 0x3000, 0xb580, 0x1b30, 0x2e20, 0xb380, | |
601 | 0x3000, 0xb5c0, 0x1bd8, 0x2cc0, 0xb320, | |
602 | 0x3020, 0xb5e0, 0x1c60, 0x2b80, 0xb2c0, | |
603 | 0x3020, 0xb5e0, 0x1cf8, 0x2a20, 0xb260, | |
604 | 0x3020, 0xb5e0, 0x1d80, 0x28e0, 0xb200, | |
605 | 0x3020, 0xb5c0, 0x1e08, 0x3f40, 0xb1c0, | |
606 | 0x3020, 0xb580, 0x1e78, 0x3ce0, 0xb160, | |
607 | 0x3040, 0xb520, 0x1ed8, 0x3aa0, 0xb120, | |
608 | 0x3040, 0xb4a0, 0x1f30, 0x3880, 0xb0e0, | |
609 | 0x3040, 0xb400, 0x1f78, 0x3680, 0xb0a0, | |
610 | 0x3020, 0xb340, 0x1fb8, 0x34a0, 0xb060, | |
611 | 0x3020, 0xb240, 0x1fe0, 0x32e0, 0xb040, | |
612 | 0x3020, 0xb140, 0x1ff8, 0x3160, 0xb020, | |
722506f0 CW |
613 | 0xb000, 0x3000, 0x0800, 0x3000, 0xb000 |
614 | }; | |
615 | ||
02e792fb DV |
616 | static const u16 uv_static_hcoeffs[N_HORIZ_UV_TAPS * N_PHASES] = { |
617 | 0x3000, 0x1800, 0x1800, 0xb000, 0x18d0, 0x2e60, | |
618 | 0xb000, 0x1990, 0x2ce0, 0xb020, 0x1a68, 0x2b40, | |
619 | 0xb040, 0x1b20, 0x29e0, 0xb060, 0x1bd8, 0x2880, | |
620 | 0xb080, 0x1c88, 0x3e60, 0xb0a0, 0x1d28, 0x3c00, | |
621 | 0xb0c0, 0x1db8, 0x39e0, 0xb0e0, 0x1e40, 0x37e0, | |
622 | 0xb100, 0x1eb8, 0x3620, 0xb100, 0x1f18, 0x34a0, | |
623 | 0xb100, 0x1f68, 0x3360, 0xb0e0, 0x1fa8, 0x3240, | |
624 | 0xb0c0, 0x1fe0, 0x3140, 0xb060, 0x1ff0, 0x30a0, | |
722506f0 CW |
625 | 0x3000, 0x0800, 0x3000 |
626 | }; | |
02e792fb DV |
627 | |
628 | static void update_polyphase_filter(struct overlay_registers *regs) | |
629 | { | |
630 | memcpy(regs->Y_HCOEFS, y_static_hcoeffs, sizeof(y_static_hcoeffs)); | |
631 | memcpy(regs->UV_HCOEFS, uv_static_hcoeffs, sizeof(uv_static_hcoeffs)); | |
632 | } | |
633 | ||
634 | static bool update_scaling_factors(struct intel_overlay *overlay, | |
635 | struct overlay_registers *regs, | |
636 | struct put_image_params *params) | |
637 | { | |
638 | /* fixed point with a 12 bit shift */ | |
639 | u32 xscale, yscale, xscale_UV, yscale_UV; | |
640 | #define FP_SHIFT 12 | |
641 | #define FRACT_MASK 0xfff | |
642 | bool scale_changed = false; | |
643 | int uv_hscale = uv_hsubsampling(params->format); | |
644 | int uv_vscale = uv_vsubsampling(params->format); | |
645 | ||
646 | if (params->dst_w > 1) | |
647 | xscale = ((params->src_scan_w - 1) << FP_SHIFT) | |
648 | /(params->dst_w); | |
649 | else | |
650 | xscale = 1 << FP_SHIFT; | |
651 | ||
652 | if (params->dst_h > 1) | |
653 | yscale = ((params->src_scan_h - 1) << FP_SHIFT) | |
654 | /(params->dst_h); | |
655 | else | |
656 | yscale = 1 << FP_SHIFT; | |
657 | ||
658 | /*if (params->format & I915_OVERLAY_YUV_PLANAR) {*/ | |
722506f0 CW |
659 | xscale_UV = xscale/uv_hscale; |
660 | yscale_UV = yscale/uv_vscale; | |
661 | /* make the Y scale to UV scale ratio an exact multiply */ | |
662 | xscale = xscale_UV * uv_hscale; | |
663 | yscale = yscale_UV * uv_vscale; | |
02e792fb | 664 | /*} else { |
722506f0 CW |
665 | xscale_UV = 0; |
666 | yscale_UV = 0; | |
667 | }*/ | |
02e792fb DV |
668 | |
669 | if (xscale != overlay->old_xscale || yscale != overlay->old_yscale) | |
670 | scale_changed = true; | |
671 | overlay->old_xscale = xscale; | |
672 | overlay->old_yscale = yscale; | |
673 | ||
722506f0 CW |
674 | regs->YRGBSCALE = (((yscale & FRACT_MASK) << 20) | |
675 | ((xscale >> FP_SHIFT) << 16) | | |
676 | ((xscale & FRACT_MASK) << 3)); | |
677 | ||
678 | regs->UVSCALE = (((yscale_UV & FRACT_MASK) << 20) | | |
679 | ((xscale_UV >> FP_SHIFT) << 16) | | |
680 | ((xscale_UV & FRACT_MASK) << 3)); | |
681 | ||
682 | regs->UVSCALEV = ((((yscale >> FP_SHIFT) << 16) | | |
683 | ((yscale_UV >> FP_SHIFT) << 0))); | |
02e792fb DV |
684 | |
685 | if (scale_changed) | |
686 | update_polyphase_filter(regs); | |
687 | ||
688 | return scale_changed; | |
689 | } | |
690 | ||
691 | static void update_colorkey(struct intel_overlay *overlay, | |
692 | struct overlay_registers *regs) | |
693 | { | |
694 | u32 key = overlay->color_key; | |
6ba3ddd9 | 695 | |
02e792fb | 696 | switch (overlay->crtc->base.fb->bits_per_pixel) { |
722506f0 CW |
697 | case 8: |
698 | regs->DCLRKV = 0; | |
699 | regs->DCLRKM = CLK_RGB8I_MASK | DST_KEY_ENABLE; | |
6ba3ddd9 CW |
700 | break; |
701 | ||
722506f0 CW |
702 | case 16: |
703 | if (overlay->crtc->base.fb->depth == 15) { | |
704 | regs->DCLRKV = RGB15_TO_COLORKEY(key); | |
705 | regs->DCLRKM = CLK_RGB15_MASK | DST_KEY_ENABLE; | |
706 | } else { | |
707 | regs->DCLRKV = RGB16_TO_COLORKEY(key); | |
708 | regs->DCLRKM = CLK_RGB16_MASK | DST_KEY_ENABLE; | |
709 | } | |
6ba3ddd9 CW |
710 | break; |
711 | ||
722506f0 CW |
712 | case 24: |
713 | case 32: | |
714 | regs->DCLRKV = key; | |
715 | regs->DCLRKM = CLK_RGB24_MASK | DST_KEY_ENABLE; | |
6ba3ddd9 | 716 | break; |
02e792fb DV |
717 | } |
718 | } | |
719 | ||
720 | static u32 overlay_cmd_reg(struct put_image_params *params) | |
721 | { | |
722 | u32 cmd = OCMD_ENABLE | OCMD_BUF_TYPE_FRAME | OCMD_BUFFER0; | |
723 | ||
724 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
725 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
726 | case I915_OVERLAY_YUV422: |
727 | cmd |= OCMD_YUV_422_PLANAR; | |
728 | break; | |
729 | case I915_OVERLAY_YUV420: | |
730 | cmd |= OCMD_YUV_420_PLANAR; | |
731 | break; | |
732 | case I915_OVERLAY_YUV411: | |
733 | case I915_OVERLAY_YUV410: | |
734 | cmd |= OCMD_YUV_410_PLANAR; | |
735 | break; | |
02e792fb DV |
736 | } |
737 | } else { /* YUV packed */ | |
738 | switch (params->format & I915_OVERLAY_DEPTH_MASK) { | |
722506f0 CW |
739 | case I915_OVERLAY_YUV422: |
740 | cmd |= OCMD_YUV_422_PACKED; | |
741 | break; | |
742 | case I915_OVERLAY_YUV411: | |
743 | cmd |= OCMD_YUV_411_PACKED; | |
744 | break; | |
02e792fb DV |
745 | } |
746 | ||
747 | switch (params->format & I915_OVERLAY_SWAP_MASK) { | |
722506f0 CW |
748 | case I915_OVERLAY_NO_SWAP: |
749 | break; | |
750 | case I915_OVERLAY_UV_SWAP: | |
751 | cmd |= OCMD_UV_SWAP; | |
752 | break; | |
753 | case I915_OVERLAY_Y_SWAP: | |
754 | cmd |= OCMD_Y_SWAP; | |
755 | break; | |
756 | case I915_OVERLAY_Y_AND_UV_SWAP: | |
757 | cmd |= OCMD_Y_AND_UV_SWAP; | |
758 | break; | |
02e792fb DV |
759 | } |
760 | } | |
761 | ||
762 | return cmd; | |
763 | } | |
764 | ||
5fe82c5e | 765 | static int intel_overlay_do_put_image(struct intel_overlay *overlay, |
05394f39 | 766 | struct drm_i915_gem_object *new_bo, |
5fe82c5e | 767 | struct put_image_params *params) |
02e792fb DV |
768 | { |
769 | int ret, tmp_width; | |
770 | struct overlay_registers *regs; | |
771 | bool scale_changed = false; | |
02e792fb DV |
772 | struct drm_device *dev = overlay->dev; |
773 | ||
774 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
775 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
776 | BUG_ON(!overlay); | |
777 | ||
02e792fb DV |
778 | ret = intel_overlay_release_old_vid(overlay); |
779 | if (ret != 0) | |
780 | return ret; | |
781 | ||
75e9e915 | 782 | ret = i915_gem_object_pin(new_bo, PAGE_SIZE, true); |
02e792fb DV |
783 | if (ret != 0) |
784 | return ret; | |
785 | ||
786 | ret = i915_gem_object_set_to_gtt_domain(new_bo, 0); | |
787 | if (ret != 0) | |
788 | goto out_unpin; | |
789 | ||
790 | if (!overlay->active) { | |
8d74f656 | 791 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
792 | if (!regs) { |
793 | ret = -ENOMEM; | |
794 | goto out_unpin; | |
795 | } | |
796 | regs->OCONFIG = OCONF_CC_OUT_8BIT; | |
a6c45cf0 | 797 | if (IS_GEN4(overlay->dev)) |
02e792fb DV |
798 | regs->OCONFIG |= OCONF_CSC_MODE_BT709; |
799 | regs->OCONFIG |= overlay->crtc->pipe == 0 ? | |
800 | OCONF_PIPE_A : OCONF_PIPE_B; | |
9bb2ff73 | 801 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
802 | |
803 | ret = intel_overlay_on(overlay); | |
804 | if (ret != 0) | |
805 | goto out_unpin; | |
806 | } | |
807 | ||
8d74f656 | 808 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
809 | if (!regs) { |
810 | ret = -ENOMEM; | |
811 | goto out_unpin; | |
812 | } | |
813 | ||
814 | regs->DWINPOS = (params->dst_y << 16) | params->dst_x; | |
815 | regs->DWINSZ = (params->dst_h << 16) | params->dst_w; | |
816 | ||
817 | if (params->format & I915_OVERLAY_YUV_PACKED) | |
818 | tmp_width = packed_width_bytes(params->format, params->src_w); | |
819 | else | |
820 | tmp_width = params->src_w; | |
821 | ||
822 | regs->SWIDTH = params->src_w; | |
823 | regs->SWIDTHSW = calc_swidthsw(overlay->dev, | |
722506f0 | 824 | params->offset_Y, tmp_width); |
02e792fb | 825 | regs->SHEIGHT = params->src_h; |
05394f39 | 826 | regs->OBUF_0Y = new_bo->gtt_offset + params-> offset_Y; |
02e792fb DV |
827 | regs->OSTRIDE = params->stride_Y; |
828 | ||
829 | if (params->format & I915_OVERLAY_YUV_PLANAR) { | |
830 | int uv_hscale = uv_hsubsampling(params->format); | |
831 | int uv_vscale = uv_vsubsampling(params->format); | |
832 | u32 tmp_U, tmp_V; | |
833 | regs->SWIDTH |= (params->src_w/uv_hscale) << 16; | |
834 | tmp_U = calc_swidthsw(overlay->dev, params->offset_U, | |
722506f0 | 835 | params->src_w/uv_hscale); |
02e792fb | 836 | tmp_V = calc_swidthsw(overlay->dev, params->offset_V, |
722506f0 | 837 | params->src_w/uv_hscale); |
02e792fb DV |
838 | regs->SWIDTHSW |= max_t(u32, tmp_U, tmp_V) << 16; |
839 | regs->SHEIGHT |= (params->src_h/uv_vscale) << 16; | |
05394f39 CW |
840 | regs->OBUF_0U = new_bo->gtt_offset + params->offset_U; |
841 | regs->OBUF_0V = new_bo->gtt_offset + params->offset_V; | |
02e792fb DV |
842 | regs->OSTRIDE |= params->stride_UV << 16; |
843 | } | |
844 | ||
845 | scale_changed = update_scaling_factors(overlay, regs, params); | |
846 | ||
847 | update_colorkey(overlay, regs); | |
848 | ||
849 | regs->OCMD = overlay_cmd_reg(params); | |
850 | ||
9bb2ff73 | 851 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb | 852 | |
8dc5d147 CW |
853 | ret = intel_overlay_continue(overlay, scale_changed); |
854 | if (ret) | |
855 | goto out_unpin; | |
02e792fb DV |
856 | |
857 | overlay->old_vid_bo = overlay->vid_bo; | |
05394f39 | 858 | overlay->vid_bo = new_bo; |
02e792fb DV |
859 | |
860 | return 0; | |
861 | ||
862 | out_unpin: | |
863 | i915_gem_object_unpin(new_bo); | |
864 | return ret; | |
865 | } | |
866 | ||
5dcdbcb0 CW |
867 | int intel_overlay_switch_off(struct intel_overlay *overlay, |
868 | bool interruptible) | |
02e792fb | 869 | { |
02e792fb | 870 | struct overlay_registers *regs; |
02e792fb | 871 | struct drm_device *dev = overlay->dev; |
5dcdbcb0 | 872 | int ret; |
02e792fb DV |
873 | |
874 | BUG_ON(!mutex_is_locked(&dev->struct_mutex)); | |
875 | BUG_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
876 | ||
b303cf95 CW |
877 | ret = intel_overlay_recover_from_interrupt(overlay, interruptible); |
878 | if (ret != 0) | |
879 | return ret; | |
9bedb974 | 880 | |
02e792fb DV |
881 | if (!overlay->active) |
882 | return 0; | |
883 | ||
02e792fb DV |
884 | ret = intel_overlay_release_old_vid(overlay); |
885 | if (ret != 0) | |
886 | return ret; | |
887 | ||
8d74f656 | 888 | regs = intel_overlay_map_regs(overlay); |
02e792fb | 889 | regs->OCMD = 0; |
9bb2ff73 | 890 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb | 891 | |
5dcdbcb0 | 892 | ret = intel_overlay_off(overlay, interruptible); |
03f77ea5 DV |
893 | if (ret != 0) |
894 | return ret; | |
895 | ||
12ca45fe | 896 | intel_overlay_off_tail(overlay); |
02e792fb DV |
897 | return 0; |
898 | } | |
899 | ||
900 | static int check_overlay_possible_on_crtc(struct intel_overlay *overlay, | |
901 | struct intel_crtc *crtc) | |
902 | { | |
722506f0 | 903 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; |
02e792fb | 904 | |
f7abfe8b | 905 | if (!crtc->active) |
02e792fb DV |
906 | return -EINVAL; |
907 | ||
02e792fb | 908 | /* can't use the overlay with double wide pipe */ |
a6c45cf0 | 909 | if (INTEL_INFO(overlay->dev)->gen < 4 && |
f7abfe8b | 910 | (I915_READ(PIPECONF(crtc->pipe)) & (PIPECONF_DOUBLE_WIDE | PIPECONF_ENABLE)) != PIPECONF_ENABLE) |
02e792fb DV |
911 | return -EINVAL; |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | static void update_pfit_vscale_ratio(struct intel_overlay *overlay) | |
917 | { | |
918 | struct drm_device *dev = overlay->dev; | |
722506f0 | 919 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb | 920 | u32 pfit_control = I915_READ(PFIT_CONTROL); |
446d2183 | 921 | u32 ratio; |
02e792fb DV |
922 | |
923 | /* XXX: This is not the same logic as in the xorg driver, but more in | |
446d2183 CW |
924 | * line with the intel documentation for the i965 |
925 | */ | |
a6c45cf0 CW |
926 | if (INTEL_INFO(dev)->gen >= 4) { |
927 | /* on i965 use the PGM reg to read out the autoscaler values */ | |
928 | ratio = I915_READ(PFIT_PGM_RATIOS) >> PFIT_VERT_SCALE_SHIFT_965; | |
929 | } else { | |
446d2183 CW |
930 | if (pfit_control & VERT_AUTO_SCALE) |
931 | ratio = I915_READ(PFIT_AUTO_RATIOS); | |
02e792fb | 932 | else |
446d2183 CW |
933 | ratio = I915_READ(PFIT_PGM_RATIOS); |
934 | ratio >>= PFIT_VERT_SCALE_SHIFT; | |
02e792fb DV |
935 | } |
936 | ||
937 | overlay->pfit_vscale_ratio = ratio; | |
938 | } | |
939 | ||
940 | static int check_overlay_dst(struct intel_overlay *overlay, | |
941 | struct drm_intel_overlay_put_image *rec) | |
942 | { | |
943 | struct drm_display_mode *mode = &overlay->crtc->base.mode; | |
944 | ||
722506f0 CW |
945 | if (rec->dst_x < mode->crtc_hdisplay && |
946 | rec->dst_x + rec->dst_width <= mode->crtc_hdisplay && | |
947 | rec->dst_y < mode->crtc_vdisplay && | |
948 | rec->dst_y + rec->dst_height <= mode->crtc_vdisplay) | |
02e792fb DV |
949 | return 0; |
950 | else | |
951 | return -EINVAL; | |
952 | } | |
953 | ||
954 | static int check_overlay_scaling(struct put_image_params *rec) | |
955 | { | |
956 | u32 tmp; | |
957 | ||
958 | /* downscaling limit is 8.0 */ | |
959 | tmp = ((rec->src_scan_h << 16) / rec->dst_h) >> 16; | |
960 | if (tmp > 7) | |
961 | return -EINVAL; | |
962 | tmp = ((rec->src_scan_w << 16) / rec->dst_w) >> 16; | |
963 | if (tmp > 7) | |
964 | return -EINVAL; | |
965 | ||
966 | return 0; | |
967 | } | |
968 | ||
969 | static int check_overlay_src(struct drm_device *dev, | |
970 | struct drm_intel_overlay_put_image *rec, | |
05394f39 | 971 | struct drm_i915_gem_object *new_bo) |
02e792fb | 972 | { |
02e792fb DV |
973 | int uv_hscale = uv_hsubsampling(rec->flags); |
974 | int uv_vscale = uv_vsubsampling(rec->flags); | |
8f28f54a DC |
975 | u32 stride_mask; |
976 | int depth; | |
977 | u32 tmp; | |
02e792fb DV |
978 | |
979 | /* check src dimensions */ | |
980 | if (IS_845G(dev) || IS_I830(dev)) { | |
722506f0 | 981 | if (rec->src_height > IMAGE_MAX_HEIGHT_LEGACY || |
9f7c3f44 | 982 | rec->src_width > IMAGE_MAX_WIDTH_LEGACY) |
02e792fb DV |
983 | return -EINVAL; |
984 | } else { | |
722506f0 | 985 | if (rec->src_height > IMAGE_MAX_HEIGHT || |
9f7c3f44 | 986 | rec->src_width > IMAGE_MAX_WIDTH) |
02e792fb DV |
987 | return -EINVAL; |
988 | } | |
9f7c3f44 | 989 | |
02e792fb | 990 | /* better safe than sorry, use 4 as the maximal subsampling ratio */ |
722506f0 | 991 | if (rec->src_height < N_VERT_Y_TAPS*4 || |
9f7c3f44 | 992 | rec->src_width < N_HORIZ_Y_TAPS*4) |
02e792fb DV |
993 | return -EINVAL; |
994 | ||
a1efd14a | 995 | /* check alignment constraints */ |
02e792fb | 996 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { |
722506f0 CW |
997 | case I915_OVERLAY_RGB: |
998 | /* not implemented */ | |
999 | return -EINVAL; | |
9f7c3f44 | 1000 | |
722506f0 | 1001 | case I915_OVERLAY_YUV_PACKED: |
722506f0 | 1002 | if (uv_vscale != 1) |
02e792fb | 1003 | return -EINVAL; |
9f7c3f44 CW |
1004 | |
1005 | depth = packed_depth_bytes(rec->flags); | |
722506f0 CW |
1006 | if (depth < 0) |
1007 | return depth; | |
9f7c3f44 | 1008 | |
722506f0 CW |
1009 | /* ignore UV planes */ |
1010 | rec->stride_UV = 0; | |
1011 | rec->offset_U = 0; | |
1012 | rec->offset_V = 0; | |
1013 | /* check pixel alignment */ | |
1014 | if (rec->offset_Y % depth) | |
1015 | return -EINVAL; | |
1016 | break; | |
9f7c3f44 | 1017 | |
722506f0 CW |
1018 | case I915_OVERLAY_YUV_PLANAR: |
1019 | if (uv_vscale < 0 || uv_hscale < 0) | |
02e792fb | 1020 | return -EINVAL; |
722506f0 CW |
1021 | /* no offset restrictions for planar formats */ |
1022 | break; | |
9f7c3f44 | 1023 | |
722506f0 CW |
1024 | default: |
1025 | return -EINVAL; | |
02e792fb DV |
1026 | } |
1027 | ||
1028 | if (rec->src_width % uv_hscale) | |
1029 | return -EINVAL; | |
1030 | ||
1031 | /* stride checking */ | |
a1efd14a CW |
1032 | if (IS_I830(dev) || IS_845G(dev)) |
1033 | stride_mask = 255; | |
1034 | else | |
1035 | stride_mask = 63; | |
02e792fb DV |
1036 | |
1037 | if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask) | |
1038 | return -EINVAL; | |
a6c45cf0 | 1039 | if (IS_GEN4(dev) && rec->stride_Y < 512) |
02e792fb DV |
1040 | return -EINVAL; |
1041 | ||
1042 | tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ? | |
9f7c3f44 CW |
1043 | 4096 : 8192; |
1044 | if (rec->stride_Y > tmp || rec->stride_UV > 2*1024) | |
02e792fb DV |
1045 | return -EINVAL; |
1046 | ||
1047 | /* check buffer dimensions */ | |
1048 | switch (rec->flags & I915_OVERLAY_TYPE_MASK) { | |
722506f0 CW |
1049 | case I915_OVERLAY_RGB: |
1050 | case I915_OVERLAY_YUV_PACKED: | |
1051 | /* always 4 Y values per depth pixels */ | |
1052 | if (packed_width_bytes(rec->flags, rec->src_width) > rec->stride_Y) | |
1053 | return -EINVAL; | |
1054 | ||
1055 | tmp = rec->stride_Y*rec->src_height; | |
05394f39 | 1056 | if (rec->offset_Y + tmp > new_bo->base.size) |
722506f0 CW |
1057 | return -EINVAL; |
1058 | break; | |
1059 | ||
1060 | case I915_OVERLAY_YUV_PLANAR: | |
1061 | if (rec->src_width > rec->stride_Y) | |
1062 | return -EINVAL; | |
1063 | if (rec->src_width/uv_hscale > rec->stride_UV) | |
1064 | return -EINVAL; | |
1065 | ||
9f7c3f44 | 1066 | tmp = rec->stride_Y * rec->src_height; |
05394f39 | 1067 | if (rec->offset_Y + tmp > new_bo->base.size) |
722506f0 | 1068 | return -EINVAL; |
9f7c3f44 CW |
1069 | |
1070 | tmp = rec->stride_UV * (rec->src_height / uv_vscale); | |
05394f39 CW |
1071 | if (rec->offset_U + tmp > new_bo->base.size || |
1072 | rec->offset_V + tmp > new_bo->base.size) | |
722506f0 CW |
1073 | return -EINVAL; |
1074 | break; | |
02e792fb DV |
1075 | } |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
e9e331a8 CW |
1080 | /** |
1081 | * Return the pipe currently connected to the panel fitter, | |
1082 | * or -1 if the panel fitter is not present or not in use | |
1083 | */ | |
1084 | static int intel_panel_fitter_pipe(struct drm_device *dev) | |
1085 | { | |
1086 | struct drm_i915_private *dev_priv = dev->dev_private; | |
1087 | u32 pfit_control; | |
1088 | ||
1089 | /* i830 doesn't have a panel fitter */ | |
1090 | if (IS_I830(dev)) | |
1091 | return -1; | |
1092 | ||
1093 | pfit_control = I915_READ(PFIT_CONTROL); | |
1094 | ||
1095 | /* See if the panel fitter is in use */ | |
1096 | if ((pfit_control & PFIT_ENABLE) == 0) | |
1097 | return -1; | |
1098 | ||
1099 | /* 965 can place panel fitter on either pipe */ | |
a6c45cf0 | 1100 | if (IS_GEN4(dev)) |
e9e331a8 CW |
1101 | return (pfit_control >> 29) & 0x3; |
1102 | ||
1103 | /* older chips can only use pipe 1 */ | |
1104 | return 1; | |
1105 | } | |
1106 | ||
02e792fb DV |
1107 | int intel_overlay_put_image(struct drm_device *dev, void *data, |
1108 | struct drm_file *file_priv) | |
1109 | { | |
1110 | struct drm_intel_overlay_put_image *put_image_rec = data; | |
1111 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1112 | struct intel_overlay *overlay; | |
1113 | struct drm_mode_object *drmmode_obj; | |
1114 | struct intel_crtc *crtc; | |
05394f39 | 1115 | struct drm_i915_gem_object *new_bo; |
02e792fb DV |
1116 | struct put_image_params *params; |
1117 | int ret; | |
1118 | ||
1119 | if (!dev_priv) { | |
1120 | DRM_ERROR("called with no initialization\n"); | |
1121 | return -EINVAL; | |
1122 | } | |
1123 | ||
1124 | overlay = dev_priv->overlay; | |
1125 | if (!overlay) { | |
1126 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1127 | return -ENODEV; | |
1128 | } | |
1129 | ||
1130 | if (!(put_image_rec->flags & I915_OVERLAY_ENABLE)) { | |
1131 | mutex_lock(&dev->mode_config.mutex); | |
1132 | mutex_lock(&dev->struct_mutex); | |
1133 | ||
5dcdbcb0 | 1134 | ret = intel_overlay_switch_off(overlay, true); |
02e792fb DV |
1135 | |
1136 | mutex_unlock(&dev->struct_mutex); | |
1137 | mutex_unlock(&dev->mode_config.mutex); | |
1138 | ||
1139 | return ret; | |
1140 | } | |
1141 | ||
1142 | params = kmalloc(sizeof(struct put_image_params), GFP_KERNEL); | |
1143 | if (!params) | |
1144 | return -ENOMEM; | |
1145 | ||
1146 | drmmode_obj = drm_mode_object_find(dev, put_image_rec->crtc_id, | |
722506f0 | 1147 | DRM_MODE_OBJECT_CRTC); |
915a428e DC |
1148 | if (!drmmode_obj) { |
1149 | ret = -ENOENT; | |
1150 | goto out_free; | |
1151 | } | |
02e792fb DV |
1152 | crtc = to_intel_crtc(obj_to_crtc(drmmode_obj)); |
1153 | ||
05394f39 CW |
1154 | new_bo = to_intel_bo(drm_gem_object_lookup(dev, file_priv, |
1155 | put_image_rec->bo_handle)); | |
915a428e DC |
1156 | if (!new_bo) { |
1157 | ret = -ENOENT; | |
1158 | goto out_free; | |
1159 | } | |
02e792fb DV |
1160 | |
1161 | mutex_lock(&dev->mode_config.mutex); | |
1162 | mutex_lock(&dev->struct_mutex); | |
1163 | ||
b303cf95 CW |
1164 | ret = intel_overlay_recover_from_interrupt(overlay, true); |
1165 | if (ret != 0) | |
1166 | goto out_unlock; | |
03f77ea5 | 1167 | |
02e792fb DV |
1168 | if (overlay->crtc != crtc) { |
1169 | struct drm_display_mode *mode = &crtc->base.mode; | |
5dcdbcb0 | 1170 | ret = intel_overlay_switch_off(overlay, true); |
02e792fb DV |
1171 | if (ret != 0) |
1172 | goto out_unlock; | |
1173 | ||
1174 | ret = check_overlay_possible_on_crtc(overlay, crtc); | |
1175 | if (ret != 0) | |
1176 | goto out_unlock; | |
1177 | ||
1178 | overlay->crtc = crtc; | |
1179 | crtc->overlay = overlay; | |
1180 | ||
e9e331a8 CW |
1181 | /* line too wide, i.e. one-line-mode */ |
1182 | if (mode->hdisplay > 1024 && | |
1183 | intel_panel_fitter_pipe(dev) == crtc->pipe) { | |
02e792fb DV |
1184 | overlay->pfit_active = 1; |
1185 | update_pfit_vscale_ratio(overlay); | |
1186 | } else | |
1187 | overlay->pfit_active = 0; | |
1188 | } | |
1189 | ||
1190 | ret = check_overlay_dst(overlay, put_image_rec); | |
1191 | if (ret != 0) | |
1192 | goto out_unlock; | |
1193 | ||
1194 | if (overlay->pfit_active) { | |
1195 | params->dst_y = ((((u32)put_image_rec->dst_y) << 12) / | |
722506f0 | 1196 | overlay->pfit_vscale_ratio); |
02e792fb DV |
1197 | /* shifting right rounds downwards, so add 1 */ |
1198 | params->dst_h = ((((u32)put_image_rec->dst_height) << 12) / | |
722506f0 | 1199 | overlay->pfit_vscale_ratio) + 1; |
02e792fb DV |
1200 | } else { |
1201 | params->dst_y = put_image_rec->dst_y; | |
1202 | params->dst_h = put_image_rec->dst_height; | |
1203 | } | |
1204 | params->dst_x = put_image_rec->dst_x; | |
1205 | params->dst_w = put_image_rec->dst_width; | |
1206 | ||
1207 | params->src_w = put_image_rec->src_width; | |
1208 | params->src_h = put_image_rec->src_height; | |
1209 | params->src_scan_w = put_image_rec->src_scan_width; | |
1210 | params->src_scan_h = put_image_rec->src_scan_height; | |
722506f0 CW |
1211 | if (params->src_scan_h > params->src_h || |
1212 | params->src_scan_w > params->src_w) { | |
02e792fb DV |
1213 | ret = -EINVAL; |
1214 | goto out_unlock; | |
1215 | } | |
1216 | ||
1217 | ret = check_overlay_src(dev, put_image_rec, new_bo); | |
1218 | if (ret != 0) | |
1219 | goto out_unlock; | |
1220 | params->format = put_image_rec->flags & ~I915_OVERLAY_FLAGS_MASK; | |
1221 | params->stride_Y = put_image_rec->stride_Y; | |
1222 | params->stride_UV = put_image_rec->stride_UV; | |
1223 | params->offset_Y = put_image_rec->offset_Y; | |
1224 | params->offset_U = put_image_rec->offset_U; | |
1225 | params->offset_V = put_image_rec->offset_V; | |
1226 | ||
1227 | /* Check scaling after src size to prevent a divide-by-zero. */ | |
1228 | ret = check_overlay_scaling(params); | |
1229 | if (ret != 0) | |
1230 | goto out_unlock; | |
1231 | ||
1232 | ret = intel_overlay_do_put_image(overlay, new_bo, params); | |
1233 | if (ret != 0) | |
1234 | goto out_unlock; | |
1235 | ||
1236 | mutex_unlock(&dev->struct_mutex); | |
1237 | mutex_unlock(&dev->mode_config.mutex); | |
1238 | ||
1239 | kfree(params); | |
1240 | ||
1241 | return 0; | |
1242 | ||
1243 | out_unlock: | |
1244 | mutex_unlock(&dev->struct_mutex); | |
1245 | mutex_unlock(&dev->mode_config.mutex); | |
05394f39 | 1246 | drm_gem_object_unreference_unlocked(&new_bo->base); |
915a428e | 1247 | out_free: |
02e792fb DV |
1248 | kfree(params); |
1249 | ||
1250 | return ret; | |
1251 | } | |
1252 | ||
1253 | static void update_reg_attrs(struct intel_overlay *overlay, | |
1254 | struct overlay_registers *regs) | |
1255 | { | |
1256 | regs->OCLRC0 = (overlay->contrast << 18) | (overlay->brightness & 0xff); | |
1257 | regs->OCLRC1 = overlay->saturation; | |
1258 | } | |
1259 | ||
1260 | static bool check_gamma_bounds(u32 gamma1, u32 gamma2) | |
1261 | { | |
1262 | int i; | |
1263 | ||
1264 | if (gamma1 & 0xff000000 || gamma2 & 0xff000000) | |
1265 | return false; | |
1266 | ||
1267 | for (i = 0; i < 3; i++) { | |
722506f0 | 1268 | if (((gamma1 >> i*8) & 0xff) >= ((gamma2 >> i*8) & 0xff)) |
02e792fb DV |
1269 | return false; |
1270 | } | |
1271 | ||
1272 | return true; | |
1273 | } | |
1274 | ||
1275 | static bool check_gamma5_errata(u32 gamma5) | |
1276 | { | |
1277 | int i; | |
1278 | ||
1279 | for (i = 0; i < 3; i++) { | |
1280 | if (((gamma5 >> i*8) & 0xff) == 0x80) | |
1281 | return false; | |
1282 | } | |
1283 | ||
1284 | return true; | |
1285 | } | |
1286 | ||
1287 | static int check_gamma(struct drm_intel_overlay_attrs *attrs) | |
1288 | { | |
722506f0 CW |
1289 | if (!check_gamma_bounds(0, attrs->gamma0) || |
1290 | !check_gamma_bounds(attrs->gamma0, attrs->gamma1) || | |
1291 | !check_gamma_bounds(attrs->gamma1, attrs->gamma2) || | |
1292 | !check_gamma_bounds(attrs->gamma2, attrs->gamma3) || | |
1293 | !check_gamma_bounds(attrs->gamma3, attrs->gamma4) || | |
1294 | !check_gamma_bounds(attrs->gamma4, attrs->gamma5) || | |
1295 | !check_gamma_bounds(attrs->gamma5, 0x00ffffff)) | |
02e792fb | 1296 | return -EINVAL; |
722506f0 | 1297 | |
02e792fb DV |
1298 | if (!check_gamma5_errata(attrs->gamma5)) |
1299 | return -EINVAL; | |
722506f0 | 1300 | |
02e792fb DV |
1301 | return 0; |
1302 | } | |
1303 | ||
1304 | int intel_overlay_attrs(struct drm_device *dev, void *data, | |
1305 | struct drm_file *file_priv) | |
1306 | { | |
1307 | struct drm_intel_overlay_attrs *attrs = data; | |
1308 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1309 | struct intel_overlay *overlay; | |
1310 | struct overlay_registers *regs; | |
1311 | int ret; | |
1312 | ||
1313 | if (!dev_priv) { | |
1314 | DRM_ERROR("called with no initialization\n"); | |
1315 | return -EINVAL; | |
1316 | } | |
1317 | ||
1318 | overlay = dev_priv->overlay; | |
1319 | if (!overlay) { | |
1320 | DRM_DEBUG("userspace bug: no overlay\n"); | |
1321 | return -ENODEV; | |
1322 | } | |
1323 | ||
1324 | mutex_lock(&dev->mode_config.mutex); | |
1325 | mutex_lock(&dev->struct_mutex); | |
1326 | ||
60fc332c | 1327 | ret = -EINVAL; |
02e792fb | 1328 | if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) { |
60fc332c | 1329 | attrs->color_key = overlay->color_key; |
02e792fb | 1330 | attrs->brightness = overlay->brightness; |
60fc332c | 1331 | attrs->contrast = overlay->contrast; |
02e792fb DV |
1332 | attrs->saturation = overlay->saturation; |
1333 | ||
a6c45cf0 | 1334 | if (!IS_GEN2(dev)) { |
02e792fb DV |
1335 | attrs->gamma0 = I915_READ(OGAMC0); |
1336 | attrs->gamma1 = I915_READ(OGAMC1); | |
1337 | attrs->gamma2 = I915_READ(OGAMC2); | |
1338 | attrs->gamma3 = I915_READ(OGAMC3); | |
1339 | attrs->gamma4 = I915_READ(OGAMC4); | |
1340 | attrs->gamma5 = I915_READ(OGAMC5); | |
1341 | } | |
02e792fb | 1342 | } else { |
60fc332c | 1343 | if (attrs->brightness < -128 || attrs->brightness > 127) |
02e792fb | 1344 | goto out_unlock; |
60fc332c | 1345 | if (attrs->contrast > 255) |
02e792fb | 1346 | goto out_unlock; |
60fc332c | 1347 | if (attrs->saturation > 1023) |
02e792fb | 1348 | goto out_unlock; |
02e792fb | 1349 | |
60fc332c CW |
1350 | overlay->color_key = attrs->color_key; |
1351 | overlay->brightness = attrs->brightness; | |
1352 | overlay->contrast = attrs->contrast; | |
1353 | overlay->saturation = attrs->saturation; | |
02e792fb | 1354 | |
8d74f656 | 1355 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
1356 | if (!regs) { |
1357 | ret = -ENOMEM; | |
1358 | goto out_unlock; | |
1359 | } | |
1360 | ||
1361 | update_reg_attrs(overlay, regs); | |
1362 | ||
9bb2ff73 | 1363 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
1364 | |
1365 | if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) { | |
a6c45cf0 | 1366 | if (IS_GEN2(dev)) |
02e792fb | 1367 | goto out_unlock; |
02e792fb DV |
1368 | |
1369 | if (overlay->active) { | |
1370 | ret = -EBUSY; | |
1371 | goto out_unlock; | |
1372 | } | |
1373 | ||
1374 | ret = check_gamma(attrs); | |
60fc332c | 1375 | if (ret) |
02e792fb DV |
1376 | goto out_unlock; |
1377 | ||
1378 | I915_WRITE(OGAMC0, attrs->gamma0); | |
1379 | I915_WRITE(OGAMC1, attrs->gamma1); | |
1380 | I915_WRITE(OGAMC2, attrs->gamma2); | |
1381 | I915_WRITE(OGAMC3, attrs->gamma3); | |
1382 | I915_WRITE(OGAMC4, attrs->gamma4); | |
1383 | I915_WRITE(OGAMC5, attrs->gamma5); | |
1384 | } | |
02e792fb DV |
1385 | } |
1386 | ||
60fc332c | 1387 | ret = 0; |
02e792fb DV |
1388 | out_unlock: |
1389 | mutex_unlock(&dev->struct_mutex); | |
1390 | mutex_unlock(&dev->mode_config.mutex); | |
1391 | ||
1392 | return ret; | |
1393 | } | |
1394 | ||
1395 | void intel_setup_overlay(struct drm_device *dev) | |
1396 | { | |
1397 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1398 | struct intel_overlay *overlay; | |
05394f39 | 1399 | struct drm_i915_gem_object *reg_bo; |
02e792fb DV |
1400 | struct overlay_registers *regs; |
1401 | int ret; | |
1402 | ||
31578148 | 1403 | if (!HAS_OVERLAY(dev)) |
02e792fb DV |
1404 | return; |
1405 | ||
1406 | overlay = kzalloc(sizeof(struct intel_overlay), GFP_KERNEL); | |
1407 | if (!overlay) | |
1408 | return; | |
1409 | overlay->dev = dev; | |
1410 | ||
ac52bc56 | 1411 | reg_bo = i915_gem_alloc_object(dev, PAGE_SIZE); |
02e792fb DV |
1412 | if (!reg_bo) |
1413 | goto out_free; | |
05394f39 | 1414 | overlay->reg_bo = reg_bo; |
02e792fb | 1415 | |
31578148 | 1416 | if (OVERLAY_NEEDS_PHYSICAL(dev)) { |
02e792fb | 1417 | ret = i915_gem_attach_phys_object(dev, reg_bo, |
6eeefaf3 | 1418 | I915_GEM_PHYS_OVERLAY_REGS, |
a2930128 | 1419 | PAGE_SIZE); |
02e792fb DV |
1420 | if (ret) { |
1421 | DRM_ERROR("failed to attach phys overlay regs\n"); | |
1422 | goto out_free_bo; | |
1423 | } | |
05394f39 | 1424 | overlay->flip_addr = reg_bo->phys_obj->handle->busaddr; |
31578148 | 1425 | } else { |
75e9e915 | 1426 | ret = i915_gem_object_pin(reg_bo, PAGE_SIZE, true); |
02e792fb DV |
1427 | if (ret) { |
1428 | DRM_ERROR("failed to pin overlay register bo\n"); | |
1429 | goto out_free_bo; | |
1430 | } | |
05394f39 | 1431 | overlay->flip_addr = reg_bo->gtt_offset; |
0ddc1289 CW |
1432 | |
1433 | ret = i915_gem_object_set_to_gtt_domain(reg_bo, true); | |
1434 | if (ret) { | |
1435 | DRM_ERROR("failed to move overlay register bo into the GTT\n"); | |
1436 | goto out_unpin_bo; | |
1437 | } | |
02e792fb DV |
1438 | } |
1439 | ||
1440 | /* init all values */ | |
1441 | overlay->color_key = 0x0101fe; | |
1442 | overlay->brightness = -19; | |
1443 | overlay->contrast = 75; | |
1444 | overlay->saturation = 146; | |
1445 | ||
8d74f656 | 1446 | regs = intel_overlay_map_regs(overlay); |
02e792fb DV |
1447 | if (!regs) |
1448 | goto out_free_bo; | |
1449 | ||
1450 | memset(regs, 0, sizeof(struct overlay_registers)); | |
1451 | update_polyphase_filter(regs); | |
02e792fb DV |
1452 | update_reg_attrs(overlay, regs); |
1453 | ||
9bb2ff73 | 1454 | intel_overlay_unmap_regs(overlay, regs); |
02e792fb DV |
1455 | |
1456 | dev_priv->overlay = overlay; | |
1457 | DRM_INFO("initialized overlay support\n"); | |
1458 | return; | |
1459 | ||
0ddc1289 CW |
1460 | out_unpin_bo: |
1461 | i915_gem_object_unpin(reg_bo); | |
02e792fb | 1462 | out_free_bo: |
05394f39 | 1463 | drm_gem_object_unreference(®_bo->base); |
02e792fb DV |
1464 | out_free: |
1465 | kfree(overlay); | |
1466 | return; | |
1467 | } | |
1468 | ||
1469 | void intel_cleanup_overlay(struct drm_device *dev) | |
1470 | { | |
722506f0 | 1471 | drm_i915_private_t *dev_priv = dev->dev_private; |
02e792fb | 1472 | |
62cf4e6f CW |
1473 | if (!dev_priv->overlay) |
1474 | return; | |
02e792fb | 1475 | |
62cf4e6f CW |
1476 | /* The bo's should be free'd by the generic code already. |
1477 | * Furthermore modesetting teardown happens beforehand so the | |
1478 | * hardware should be off already */ | |
1479 | BUG_ON(dev_priv->overlay->active); | |
1480 | ||
1481 | drm_gem_object_unreference_unlocked(&dev_priv->overlay->reg_bo->base); | |
1482 | kfree(dev_priv->overlay); | |
02e792fb | 1483 | } |
6ef3d427 | 1484 | |
3bd3c932 CW |
1485 | #ifdef CONFIG_DEBUG_FS |
1486 | #include <linux/seq_file.h> | |
1487 | ||
6ef3d427 CW |
1488 | struct intel_overlay_error_state { |
1489 | struct overlay_registers regs; | |
1490 | unsigned long base; | |
1491 | u32 dovsta; | |
1492 | u32 isr; | |
1493 | }; | |
1494 | ||
3bd3c932 | 1495 | static struct overlay_registers * |
c48c43e4 | 1496 | intel_overlay_map_regs_atomic(struct intel_overlay *overlay) |
3bd3c932 | 1497 | { |
c48c43e4 | 1498 | drm_i915_private_t *dev_priv = overlay->dev->dev_private; |
3bd3c932 CW |
1499 | struct overlay_registers *regs; |
1500 | ||
1501 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
1502 | regs = overlay->reg_bo->phys_obj->handle->vaddr; | |
1503 | else | |
1504 | regs = io_mapping_map_atomic_wc(dev_priv->mm.gtt_mapping, | |
c48c43e4 | 1505 | overlay->reg_bo->gtt_offset); |
3bd3c932 CW |
1506 | |
1507 | return regs; | |
1508 | } | |
1509 | ||
1510 | static void intel_overlay_unmap_regs_atomic(struct intel_overlay *overlay, | |
3bd3c932 CW |
1511 | struct overlay_registers *regs) |
1512 | { | |
1513 | if (!OVERLAY_NEEDS_PHYSICAL(overlay->dev)) | |
c48c43e4 | 1514 | io_mapping_unmap_atomic(regs); |
3bd3c932 CW |
1515 | } |
1516 | ||
1517 | ||
6ef3d427 CW |
1518 | struct intel_overlay_error_state * |
1519 | intel_overlay_capture_error_state(struct drm_device *dev) | |
1520 | { | |
1521 | drm_i915_private_t *dev_priv = dev->dev_private; | |
1522 | struct intel_overlay *overlay = dev_priv->overlay; | |
1523 | struct intel_overlay_error_state *error; | |
1524 | struct overlay_registers __iomem *regs; | |
1525 | ||
1526 | if (!overlay || !overlay->active) | |
1527 | return NULL; | |
1528 | ||
1529 | error = kmalloc(sizeof(*error), GFP_ATOMIC); | |
1530 | if (error == NULL) | |
1531 | return NULL; | |
1532 | ||
1533 | error->dovsta = I915_READ(DOVSTA); | |
1534 | error->isr = I915_READ(ISR); | |
31578148 | 1535 | if (OVERLAY_NEEDS_PHYSICAL(overlay->dev)) |
6ef3d427 | 1536 | error->base = (long) overlay->reg_bo->phys_obj->handle->vaddr; |
31578148 CW |
1537 | else |
1538 | error->base = (long) overlay->reg_bo->gtt_offset; | |
6ef3d427 CW |
1539 | |
1540 | regs = intel_overlay_map_regs_atomic(overlay); | |
1541 | if (!regs) | |
1542 | goto err; | |
1543 | ||
1544 | memcpy_fromio(&error->regs, regs, sizeof(struct overlay_registers)); | |
c48c43e4 | 1545 | intel_overlay_unmap_regs_atomic(overlay, regs); |
6ef3d427 CW |
1546 | |
1547 | return error; | |
1548 | ||
1549 | err: | |
1550 | kfree(error); | |
1551 | return NULL; | |
1552 | } | |
1553 | ||
1554 | void | |
1555 | intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error) | |
1556 | { | |
1557 | seq_printf(m, "Overlay, status: 0x%08x, interrupt: 0x%08x\n", | |
1558 | error->dovsta, error->isr); | |
1559 | seq_printf(m, " Register file at 0x%08lx:\n", | |
1560 | error->base); | |
1561 | ||
1562 | #define P(x) seq_printf(m, " " #x ": 0x%08x\n", error->regs.x) | |
1563 | P(OBUF_0Y); | |
1564 | P(OBUF_1Y); | |
1565 | P(OBUF_0U); | |
1566 | P(OBUF_0V); | |
1567 | P(OBUF_1U); | |
1568 | P(OBUF_1V); | |
1569 | P(OSTRIDE); | |
1570 | P(YRGB_VPH); | |
1571 | P(UV_VPH); | |
1572 | P(HORZ_PH); | |
1573 | P(INIT_PHS); | |
1574 | P(DWINPOS); | |
1575 | P(DWINSZ); | |
1576 | P(SWIDTH); | |
1577 | P(SWIDTHSW); | |
1578 | P(SHEIGHT); | |
1579 | P(YRGBSCALE); | |
1580 | P(UVSCALE); | |
1581 | P(OCLRC0); | |
1582 | P(OCLRC1); | |
1583 | P(DCLRKV); | |
1584 | P(DCLRKM); | |
1585 | P(SCLRKVH); | |
1586 | P(SCLRKVL); | |
1587 | P(SCLRKEN); | |
1588 | P(OCONFIG); | |
1589 | P(OCMD); | |
1590 | P(OSTART_0Y); | |
1591 | P(OSTART_1Y); | |
1592 | P(OSTART_0U); | |
1593 | P(OSTART_0V); | |
1594 | P(OSTART_1U); | |
1595 | P(OSTART_1V); | |
1596 | P(OTILEOFF_0Y); | |
1597 | P(OTILEOFF_1Y); | |
1598 | P(OTILEOFF_0U); | |
1599 | P(OTILEOFF_0V); | |
1600 | P(OTILEOFF_1U); | |
1601 | P(OTILEOFF_1V); | |
1602 | P(FASTHSCALE); | |
1603 | P(UVSCALEV); | |
1604 | #undef P | |
1605 | } | |
3bd3c932 | 1606 | #endif |