2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
27 #include <drm/radeon_drm.h>
31 #include <asm/div64.h>
33 #include <linux/pm_runtime.h>
34 #include <drm/drm_crtc_helper.h>
35 #include <drm/drm_edid.h>
37 #include <linux/gcd.h>
39 static void avivo_crtc_load_lut(struct drm_crtc
*crtc
)
41 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
42 struct drm_device
*dev
= crtc
->dev
;
43 struct radeon_device
*rdev
= dev
->dev_private
;
46 DRM_DEBUG_KMS("%d\n", radeon_crtc
->crtc_id
);
47 WREG32(AVIVO_DC_LUTA_CONTROL
+ radeon_crtc
->crtc_offset
, 0);
49 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0);
50 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0);
51 WREG32(AVIVO_DC_LUTA_BLACK_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0);
53 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0xffff);
54 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0xffff);
55 WREG32(AVIVO_DC_LUTA_WHITE_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0xffff);
57 WREG32(AVIVO_DC_LUT_RW_SELECT
, radeon_crtc
->crtc_id
);
58 WREG32(AVIVO_DC_LUT_RW_MODE
, 0);
59 WREG32(AVIVO_DC_LUT_WRITE_EN_MASK
, 0x0000003f);
61 WREG8(AVIVO_DC_LUT_RW_INDEX
, 0);
62 for (i
= 0; i
< 256; i
++) {
63 WREG32(AVIVO_DC_LUT_30_COLOR
,
64 (radeon_crtc
->lut_r
[i
] << 20) |
65 (radeon_crtc
->lut_g
[i
] << 10) |
66 (radeon_crtc
->lut_b
[i
] << 0));
69 WREG32(AVIVO_D1GRPH_LUT_SEL
+ radeon_crtc
->crtc_offset
, radeon_crtc
->crtc_id
);
72 static void dce4_crtc_load_lut(struct drm_crtc
*crtc
)
74 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
75 struct drm_device
*dev
= crtc
->dev
;
76 struct radeon_device
*rdev
= dev
->dev_private
;
79 DRM_DEBUG_KMS("%d\n", radeon_crtc
->crtc_id
);
80 WREG32(EVERGREEN_DC_LUT_CONTROL
+ radeon_crtc
->crtc_offset
, 0);
82 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0);
83 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0);
84 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0);
86 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0xffff);
87 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0xffff);
88 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0xffff);
90 WREG32(EVERGREEN_DC_LUT_RW_MODE
+ radeon_crtc
->crtc_offset
, 0);
91 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK
+ radeon_crtc
->crtc_offset
, 0x00000007);
93 WREG32(EVERGREEN_DC_LUT_RW_INDEX
+ radeon_crtc
->crtc_offset
, 0);
94 for (i
= 0; i
< 256; i
++) {
95 WREG32(EVERGREEN_DC_LUT_30_COLOR
+ radeon_crtc
->crtc_offset
,
96 (radeon_crtc
->lut_r
[i
] << 20) |
97 (radeon_crtc
->lut_g
[i
] << 10) |
98 (radeon_crtc
->lut_b
[i
] << 0));
102 static void dce5_crtc_load_lut(struct drm_crtc
*crtc
)
104 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
105 struct drm_device
*dev
= crtc
->dev
;
106 struct radeon_device
*rdev
= dev
->dev_private
;
109 DRM_DEBUG_KMS("%d\n", radeon_crtc
->crtc_id
);
111 WREG32(NI_INPUT_CSC_CONTROL
+ radeon_crtc
->crtc_offset
,
112 (NI_INPUT_CSC_GRPH_MODE(NI_INPUT_CSC_BYPASS
) |
113 NI_INPUT_CSC_OVL_MODE(NI_INPUT_CSC_BYPASS
)));
114 WREG32(NI_PRESCALE_GRPH_CONTROL
+ radeon_crtc
->crtc_offset
,
115 NI_GRPH_PRESCALE_BYPASS
);
116 WREG32(NI_PRESCALE_OVL_CONTROL
+ radeon_crtc
->crtc_offset
,
117 NI_OVL_PRESCALE_BYPASS
);
118 WREG32(NI_INPUT_GAMMA_CONTROL
+ radeon_crtc
->crtc_offset
,
119 (NI_GRPH_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT
) |
120 NI_OVL_INPUT_GAMMA_MODE(NI_INPUT_GAMMA_USE_LUT
)));
122 WREG32(EVERGREEN_DC_LUT_CONTROL
+ radeon_crtc
->crtc_offset
, 0);
124 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0);
125 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0);
126 WREG32(EVERGREEN_DC_LUT_BLACK_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0);
128 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_BLUE
+ radeon_crtc
->crtc_offset
, 0xffff);
129 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_GREEN
+ radeon_crtc
->crtc_offset
, 0xffff);
130 WREG32(EVERGREEN_DC_LUT_WHITE_OFFSET_RED
+ radeon_crtc
->crtc_offset
, 0xffff);
132 WREG32(EVERGREEN_DC_LUT_RW_MODE
+ radeon_crtc
->crtc_offset
, 0);
133 WREG32(EVERGREEN_DC_LUT_WRITE_EN_MASK
+ radeon_crtc
->crtc_offset
, 0x00000007);
135 WREG32(EVERGREEN_DC_LUT_RW_INDEX
+ radeon_crtc
->crtc_offset
, 0);
136 for (i
= 0; i
< 256; i
++) {
137 WREG32(EVERGREEN_DC_LUT_30_COLOR
+ radeon_crtc
->crtc_offset
,
138 (radeon_crtc
->lut_r
[i
] << 20) |
139 (radeon_crtc
->lut_g
[i
] << 10) |
140 (radeon_crtc
->lut_b
[i
] << 0));
143 WREG32(NI_DEGAMMA_CONTROL
+ radeon_crtc
->crtc_offset
,
144 (NI_GRPH_DEGAMMA_MODE(NI_DEGAMMA_BYPASS
) |
145 NI_OVL_DEGAMMA_MODE(NI_DEGAMMA_BYPASS
) |
146 NI_ICON_DEGAMMA_MODE(NI_DEGAMMA_BYPASS
) |
147 NI_CURSOR_DEGAMMA_MODE(NI_DEGAMMA_BYPASS
)));
148 WREG32(NI_GAMUT_REMAP_CONTROL
+ radeon_crtc
->crtc_offset
,
149 (NI_GRPH_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS
) |
150 NI_OVL_GAMUT_REMAP_MODE(NI_GAMUT_REMAP_BYPASS
)));
151 WREG32(NI_REGAMMA_CONTROL
+ radeon_crtc
->crtc_offset
,
152 (NI_GRPH_REGAMMA_MODE(NI_REGAMMA_BYPASS
) |
153 NI_OVL_REGAMMA_MODE(NI_REGAMMA_BYPASS
)));
154 WREG32(NI_OUTPUT_CSC_CONTROL
+ radeon_crtc
->crtc_offset
,
155 (NI_OUTPUT_CSC_GRPH_MODE(NI_OUTPUT_CSC_BYPASS
) |
156 NI_OUTPUT_CSC_OVL_MODE(NI_OUTPUT_CSC_BYPASS
)));
157 /* XXX match this to the depth of the crtc fmt block, move to modeset? */
158 WREG32(0x6940 + radeon_crtc
->crtc_offset
, 0);
159 if (ASIC_IS_DCE8(rdev
)) {
160 /* XXX this only needs to be programmed once per crtc at startup,
161 * not sure where the best place for it is
163 WREG32(CIK_ALPHA_CONTROL
+ radeon_crtc
->crtc_offset
,
164 CIK_CURSOR_ALPHA_BLND_ENA
);
168 static void legacy_crtc_load_lut(struct drm_crtc
*crtc
)
170 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
171 struct drm_device
*dev
= crtc
->dev
;
172 struct radeon_device
*rdev
= dev
->dev_private
;
176 dac2_cntl
= RREG32(RADEON_DAC_CNTL2
);
177 if (radeon_crtc
->crtc_id
== 0)
178 dac2_cntl
&= (uint32_t)~RADEON_DAC2_PALETTE_ACC_CTL
;
180 dac2_cntl
|= RADEON_DAC2_PALETTE_ACC_CTL
;
181 WREG32(RADEON_DAC_CNTL2
, dac2_cntl
);
183 WREG8(RADEON_PALETTE_INDEX
, 0);
184 for (i
= 0; i
< 256; i
++) {
185 WREG32(RADEON_PALETTE_30_DATA
,
186 (radeon_crtc
->lut_r
[i
] << 20) |
187 (radeon_crtc
->lut_g
[i
] << 10) |
188 (radeon_crtc
->lut_b
[i
] << 0));
192 void radeon_crtc_load_lut(struct drm_crtc
*crtc
)
194 struct drm_device
*dev
= crtc
->dev
;
195 struct radeon_device
*rdev
= dev
->dev_private
;
200 if (ASIC_IS_DCE5(rdev
))
201 dce5_crtc_load_lut(crtc
);
202 else if (ASIC_IS_DCE4(rdev
))
203 dce4_crtc_load_lut(crtc
);
204 else if (ASIC_IS_AVIVO(rdev
))
205 avivo_crtc_load_lut(crtc
);
207 legacy_crtc_load_lut(crtc
);
210 /** Sets the color ramps on behalf of fbcon */
211 void radeon_crtc_fb_gamma_set(struct drm_crtc
*crtc
, u16 red
, u16 green
,
214 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
216 radeon_crtc
->lut_r
[regno
] = red
>> 6;
217 radeon_crtc
->lut_g
[regno
] = green
>> 6;
218 radeon_crtc
->lut_b
[regno
] = blue
>> 6;
221 /** Gets the color ramps on behalf of fbcon */
222 void radeon_crtc_fb_gamma_get(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
223 u16
*blue
, int regno
)
225 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
227 *red
= radeon_crtc
->lut_r
[regno
] << 6;
228 *green
= radeon_crtc
->lut_g
[regno
] << 6;
229 *blue
= radeon_crtc
->lut_b
[regno
] << 6;
232 static void radeon_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
233 u16
*blue
, uint32_t start
, uint32_t size
)
235 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
236 int end
= (start
+ size
> 256) ? 256 : start
+ size
, i
;
238 /* userspace palettes are always correct as is */
239 for (i
= start
; i
< end
; i
++) {
240 radeon_crtc
->lut_r
[i
] = red
[i
] >> 6;
241 radeon_crtc
->lut_g
[i
] = green
[i
] >> 6;
242 radeon_crtc
->lut_b
[i
] = blue
[i
] >> 6;
244 radeon_crtc_load_lut(crtc
);
247 static void radeon_crtc_destroy(struct drm_crtc
*crtc
)
249 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
251 drm_crtc_cleanup(crtc
);
256 * Handle unpin events outside the interrupt handler proper.
258 static void radeon_unpin_work_func(struct work_struct
*__work
)
260 struct radeon_unpin_work
*work
=
261 container_of(__work
, struct radeon_unpin_work
, work
);
264 /* unpin of the old buffer */
265 r
= radeon_bo_reserve(work
->old_rbo
, false);
266 if (likely(r
== 0)) {
267 r
= radeon_bo_unpin(work
->old_rbo
);
268 if (unlikely(r
!= 0)) {
269 DRM_ERROR("failed to unpin buffer after flip\n");
271 radeon_bo_unreserve(work
->old_rbo
);
273 DRM_ERROR("failed to reserve buffer after flip\n");
275 drm_gem_object_unreference_unlocked(&work
->old_rbo
->gem_base
);
279 void radeon_crtc_handle_flip(struct radeon_device
*rdev
, int crtc_id
)
281 struct radeon_crtc
*radeon_crtc
= rdev
->mode_info
.crtcs
[crtc_id
];
282 struct radeon_unpin_work
*work
;
287 spin_lock_irqsave(&rdev
->ddev
->event_lock
, flags
);
288 work
= radeon_crtc
->unpin_work
;
290 (work
->fence
&& !radeon_fence_signaled(work
->fence
))) {
291 spin_unlock_irqrestore(&rdev
->ddev
->event_lock
, flags
);
294 /* New pageflip, or just completion of a previous one? */
295 if (!radeon_crtc
->deferred_flip_completion
) {
296 /* do the flip (mmio) */
297 update_pending
= radeon_page_flip(rdev
, crtc_id
, work
->new_crtc_base
);
299 /* This is just a completion of a flip queued in crtc
300 * at last invocation. Make sure we go directly to
301 * completion routine.
304 radeon_crtc
->deferred_flip_completion
= 0;
307 /* Has the pageflip already completed in crtc, or is it certain
308 * to complete in this vblank?
310 if (update_pending
&&
311 (DRM_SCANOUTPOS_VALID
& radeon_get_crtc_scanoutpos(rdev
->ddev
, crtc_id
, 0,
312 &vpos
, &hpos
, NULL
, NULL
)) &&
313 ((vpos
>= (99 * rdev
->mode_info
.crtcs
[crtc_id
]->base
.hwmode
.crtc_vdisplay
)/100) ||
314 (vpos
< 0 && !ASIC_IS_AVIVO(rdev
)))) {
315 /* crtc didn't flip in this target vblank interval,
316 * but flip is pending in crtc. Based on the current
317 * scanout position we know that the current frame is
318 * (nearly) complete and the flip will (likely)
319 * complete before the start of the next frame.
323 if (update_pending
) {
324 /* crtc didn't flip in this target vblank interval,
325 * but flip is pending in crtc. It will complete it
326 * in next vblank interval, so complete the flip at
329 radeon_crtc
->deferred_flip_completion
= 1;
330 spin_unlock_irqrestore(&rdev
->ddev
->event_lock
, flags
);
334 /* Pageflip (will be) certainly completed in this vblank. Clean up. */
335 radeon_crtc
->unpin_work
= NULL
;
337 /* wakeup userspace */
339 drm_send_vblank_event(rdev
->ddev
, crtc_id
, work
->event
);
341 spin_unlock_irqrestore(&rdev
->ddev
->event_lock
, flags
);
343 drm_vblank_put(rdev
->ddev
, radeon_crtc
->crtc_id
);
344 radeon_fence_unref(&work
->fence
);
345 radeon_post_page_flip(work
->rdev
, work
->crtc_id
);
346 schedule_work(&work
->work
);
349 static int radeon_crtc_page_flip(struct drm_crtc
*crtc
,
350 struct drm_framebuffer
*fb
,
351 struct drm_pending_vblank_event
*event
,
352 uint32_t page_flip_flags
)
354 struct drm_device
*dev
= crtc
->dev
;
355 struct radeon_device
*rdev
= dev
->dev_private
;
356 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
357 struct radeon_framebuffer
*old_radeon_fb
;
358 struct radeon_framebuffer
*new_radeon_fb
;
359 struct drm_gem_object
*obj
;
360 struct radeon_bo
*rbo
;
361 struct radeon_unpin_work
*work
;
363 u32 tiling_flags
, pitch_pixels
;
367 work
= kzalloc(sizeof *work
, GFP_KERNEL
);
373 work
->crtc_id
= radeon_crtc
->crtc_id
;
374 old_radeon_fb
= to_radeon_framebuffer(crtc
->primary
->fb
);
375 new_radeon_fb
= to_radeon_framebuffer(fb
);
376 /* schedule unpin of the old buffer */
377 obj
= old_radeon_fb
->obj
;
378 /* take a reference to the old object */
379 drm_gem_object_reference(obj
);
380 rbo
= gem_to_radeon_bo(obj
);
382 obj
= new_radeon_fb
->obj
;
383 rbo
= gem_to_radeon_bo(obj
);
385 spin_lock(&rbo
->tbo
.bdev
->fence_lock
);
386 if (rbo
->tbo
.sync_obj
)
387 work
->fence
= radeon_fence_ref(rbo
->tbo
.sync_obj
);
388 spin_unlock(&rbo
->tbo
.bdev
->fence_lock
);
390 INIT_WORK(&work
->work
, radeon_unpin_work_func
);
392 /* We borrow the event spin lock for protecting unpin_work */
393 spin_lock_irqsave(&dev
->event_lock
, flags
);
394 if (radeon_crtc
->unpin_work
) {
395 DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
399 radeon_crtc
->unpin_work
= work
;
400 radeon_crtc
->deferred_flip_completion
= 0;
401 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
403 /* pin the new buffer */
404 DRM_DEBUG_DRIVER("flip-ioctl() cur_fbo = %p, cur_bbo = %p\n",
407 r
= radeon_bo_reserve(rbo
, false);
408 if (unlikely(r
!= 0)) {
409 DRM_ERROR("failed to reserve new rbo buffer before flip\n");
412 /* Only 27 bit offset for legacy CRTC */
413 r
= radeon_bo_pin_restricted(rbo
, RADEON_GEM_DOMAIN_VRAM
,
414 ASIC_IS_AVIVO(rdev
) ? 0 : 1 << 27, &base
);
415 if (unlikely(r
!= 0)) {
416 radeon_bo_unreserve(rbo
);
418 DRM_ERROR("failed to pin new rbo buffer before flip\n");
421 radeon_bo_get_tiling_flags(rbo
, &tiling_flags
, NULL
);
422 radeon_bo_unreserve(rbo
);
424 if (!ASIC_IS_AVIVO(rdev
)) {
425 /* crtc offset is from display base addr not FB location */
426 base
-= radeon_crtc
->legacy_display_base_addr
;
427 pitch_pixels
= fb
->pitches
[0] / (fb
->bits_per_pixel
/ 8);
429 if (tiling_flags
& RADEON_TILING_MACRO
) {
430 if (ASIC_IS_R300(rdev
)) {
433 int byteshift
= fb
->bits_per_pixel
>> 4;
434 int tile_addr
= (((crtc
->y
>> 3) * pitch_pixels
+ crtc
->x
) >> (8 - byteshift
)) << 11;
435 base
+= tile_addr
+ ((crtc
->x
<< byteshift
) % 256) + ((crtc
->y
% 8) << 8);
438 int offset
= crtc
->y
* pitch_pixels
+ crtc
->x
;
439 switch (fb
->bits_per_pixel
) {
460 spin_lock_irqsave(&dev
->event_lock
, flags
);
461 work
->new_crtc_base
= base
;
462 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
465 crtc
->primary
->fb
= fb
;
467 r
= drm_vblank_get(dev
, radeon_crtc
->crtc_id
);
469 DRM_ERROR("failed to get vblank before flip\n");
473 /* set the proper interrupt */
474 radeon_pre_page_flip(rdev
, radeon_crtc
->crtc_id
);
479 if (unlikely(radeon_bo_reserve(rbo
, false) != 0)) {
480 DRM_ERROR("failed to reserve new rbo in error path\n");
483 if (unlikely(radeon_bo_unpin(rbo
) != 0)) {
484 DRM_ERROR("failed to unpin new rbo in error path\n");
486 radeon_bo_unreserve(rbo
);
489 spin_lock_irqsave(&dev
->event_lock
, flags
);
490 radeon_crtc
->unpin_work
= NULL
;
492 spin_unlock_irqrestore(&dev
->event_lock
, flags
);
493 drm_gem_object_unreference_unlocked(old_radeon_fb
->obj
);
494 radeon_fence_unref(&work
->fence
);
501 radeon_crtc_set_config(struct drm_mode_set
*set
)
503 struct drm_device
*dev
;
504 struct radeon_device
*rdev
;
505 struct drm_crtc
*crtc
;
509 if (!set
|| !set
->crtc
)
512 dev
= set
->crtc
->dev
;
514 ret
= pm_runtime_get_sync(dev
->dev
);
518 ret
= drm_crtc_helper_set_config(set
);
520 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
524 pm_runtime_mark_last_busy(dev
->dev
);
526 rdev
= dev
->dev_private
;
527 /* if we have active crtcs and we don't have a power ref,
528 take the current one */
529 if (active
&& !rdev
->have_disp_power_ref
) {
530 rdev
->have_disp_power_ref
= true;
533 /* if we have no active crtcs, then drop the power ref
535 if (!active
&& rdev
->have_disp_power_ref
) {
536 pm_runtime_put_autosuspend(dev
->dev
);
537 rdev
->have_disp_power_ref
= false;
540 /* drop the power reference we got coming in here */
541 pm_runtime_put_autosuspend(dev
->dev
);
544 static const struct drm_crtc_funcs radeon_crtc_funcs
= {
545 .cursor_set
= radeon_crtc_cursor_set
,
546 .cursor_move
= radeon_crtc_cursor_move
,
547 .gamma_set
= radeon_crtc_gamma_set
,
548 .set_config
= radeon_crtc_set_config
,
549 .destroy
= radeon_crtc_destroy
,
550 .page_flip
= radeon_crtc_page_flip
,
553 static void radeon_crtc_init(struct drm_device
*dev
, int index
)
555 struct radeon_device
*rdev
= dev
->dev_private
;
556 struct radeon_crtc
*radeon_crtc
;
559 radeon_crtc
= kzalloc(sizeof(struct radeon_crtc
) + (RADEONFB_CONN_LIMIT
* sizeof(struct drm_connector
*)), GFP_KERNEL
);
560 if (radeon_crtc
== NULL
)
563 drm_crtc_init(dev
, &radeon_crtc
->base
, &radeon_crtc_funcs
);
565 drm_mode_crtc_set_gamma_size(&radeon_crtc
->base
, 256);
566 radeon_crtc
->crtc_id
= index
;
567 rdev
->mode_info
.crtcs
[index
] = radeon_crtc
;
569 if (rdev
->family
>= CHIP_BONAIRE
) {
570 radeon_crtc
->max_cursor_width
= CIK_CURSOR_WIDTH
;
571 radeon_crtc
->max_cursor_height
= CIK_CURSOR_HEIGHT
;
573 radeon_crtc
->max_cursor_width
= CURSOR_WIDTH
;
574 radeon_crtc
->max_cursor_height
= CURSOR_HEIGHT
;
576 dev
->mode_config
.cursor_width
= radeon_crtc
->max_cursor_width
;
577 dev
->mode_config
.cursor_height
= radeon_crtc
->max_cursor_height
;
580 radeon_crtc
->mode_set
.crtc
= &radeon_crtc
->base
;
581 radeon_crtc
->mode_set
.connectors
= (struct drm_connector
**)(radeon_crtc
+ 1);
582 radeon_crtc
->mode_set
.num_connectors
= 0;
585 for (i
= 0; i
< 256; i
++) {
586 radeon_crtc
->lut_r
[i
] = i
<< 2;
587 radeon_crtc
->lut_g
[i
] = i
<< 2;
588 radeon_crtc
->lut_b
[i
] = i
<< 2;
591 if (rdev
->is_atom_bios
&& (ASIC_IS_AVIVO(rdev
) || radeon_r4xx_atom
))
592 radeon_atombios_init_crtc(dev
, radeon_crtc
);
594 radeon_legacy_init_crtc(dev
, radeon_crtc
);
597 static const char *encoder_names
[38] = {
617 "INTERNAL_KLDSCP_TMDS1",
618 "INTERNAL_KLDSCP_DVO1",
619 "INTERNAL_KLDSCP_DAC1",
620 "INTERNAL_KLDSCP_DAC2",
629 "INTERNAL_KLDSCP_LVTMA",
638 static const char *hpd_names
[6] = {
647 static void radeon_print_display_setup(struct drm_device
*dev
)
649 struct drm_connector
*connector
;
650 struct radeon_connector
*radeon_connector
;
651 struct drm_encoder
*encoder
;
652 struct radeon_encoder
*radeon_encoder
;
656 DRM_INFO("Radeon Display Connectors\n");
657 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
658 radeon_connector
= to_radeon_connector(connector
);
659 DRM_INFO("Connector %d:\n", i
);
660 DRM_INFO(" %s\n", drm_get_connector_name(connector
));
661 if (radeon_connector
->hpd
.hpd
!= RADEON_HPD_NONE
)
662 DRM_INFO(" %s\n", hpd_names
[radeon_connector
->hpd
.hpd
]);
663 if (radeon_connector
->ddc_bus
) {
664 DRM_INFO(" DDC: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
665 radeon_connector
->ddc_bus
->rec
.mask_clk_reg
,
666 radeon_connector
->ddc_bus
->rec
.mask_data_reg
,
667 radeon_connector
->ddc_bus
->rec
.a_clk_reg
,
668 radeon_connector
->ddc_bus
->rec
.a_data_reg
,
669 radeon_connector
->ddc_bus
->rec
.en_clk_reg
,
670 radeon_connector
->ddc_bus
->rec
.en_data_reg
,
671 radeon_connector
->ddc_bus
->rec
.y_clk_reg
,
672 radeon_connector
->ddc_bus
->rec
.y_data_reg
);
673 if (radeon_connector
->router
.ddc_valid
)
674 DRM_INFO(" DDC Router 0x%x/0x%x\n",
675 radeon_connector
->router
.ddc_mux_control_pin
,
676 radeon_connector
->router
.ddc_mux_state
);
677 if (radeon_connector
->router
.cd_valid
)
678 DRM_INFO(" Clock/Data Router 0x%x/0x%x\n",
679 radeon_connector
->router
.cd_mux_control_pin
,
680 radeon_connector
->router
.cd_mux_state
);
682 if (connector
->connector_type
== DRM_MODE_CONNECTOR_VGA
||
683 connector
->connector_type
== DRM_MODE_CONNECTOR_DVII
||
684 connector
->connector_type
== DRM_MODE_CONNECTOR_DVID
||
685 connector
->connector_type
== DRM_MODE_CONNECTOR_DVIA
||
686 connector
->connector_type
== DRM_MODE_CONNECTOR_HDMIA
||
687 connector
->connector_type
== DRM_MODE_CONNECTOR_HDMIB
)
688 DRM_INFO(" DDC: no ddc bus - possible BIOS bug - please report to xorg-driver-ati@lists.x.org\n");
690 DRM_INFO(" Encoders:\n");
691 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
692 radeon_encoder
= to_radeon_encoder(encoder
);
693 devices
= radeon_encoder
->devices
& radeon_connector
->devices
;
695 if (devices
& ATOM_DEVICE_CRT1_SUPPORT
)
696 DRM_INFO(" CRT1: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
697 if (devices
& ATOM_DEVICE_CRT2_SUPPORT
)
698 DRM_INFO(" CRT2: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
699 if (devices
& ATOM_DEVICE_LCD1_SUPPORT
)
700 DRM_INFO(" LCD1: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
701 if (devices
& ATOM_DEVICE_DFP1_SUPPORT
)
702 DRM_INFO(" DFP1: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
703 if (devices
& ATOM_DEVICE_DFP2_SUPPORT
)
704 DRM_INFO(" DFP2: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
705 if (devices
& ATOM_DEVICE_DFP3_SUPPORT
)
706 DRM_INFO(" DFP3: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
707 if (devices
& ATOM_DEVICE_DFP4_SUPPORT
)
708 DRM_INFO(" DFP4: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
709 if (devices
& ATOM_DEVICE_DFP5_SUPPORT
)
710 DRM_INFO(" DFP5: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
711 if (devices
& ATOM_DEVICE_DFP6_SUPPORT
)
712 DRM_INFO(" DFP6: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
713 if (devices
& ATOM_DEVICE_TV1_SUPPORT
)
714 DRM_INFO(" TV1: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
715 if (devices
& ATOM_DEVICE_CV_SUPPORT
)
716 DRM_INFO(" CV: %s\n", encoder_names
[radeon_encoder
->encoder_id
]);
723 static bool radeon_setup_enc_conn(struct drm_device
*dev
)
725 struct radeon_device
*rdev
= dev
->dev_private
;
729 if (rdev
->is_atom_bios
) {
730 ret
= radeon_get_atom_connector_info_from_supported_devices_table(dev
);
732 ret
= radeon_get_atom_connector_info_from_object_table(dev
);
734 ret
= radeon_get_legacy_connector_info_from_bios(dev
);
736 ret
= radeon_get_legacy_connector_info_from_table(dev
);
739 if (!ASIC_IS_AVIVO(rdev
))
740 ret
= radeon_get_legacy_connector_info_from_table(dev
);
743 radeon_setup_encoder_clones(dev
);
744 radeon_print_display_setup(dev
);
750 int radeon_ddc_get_modes(struct radeon_connector
*radeon_connector
)
752 struct drm_device
*dev
= radeon_connector
->base
.dev
;
753 struct radeon_device
*rdev
= dev
->dev_private
;
756 /* on hw with routers, select right port */
757 if (radeon_connector
->router
.ddc_valid
)
758 radeon_router_select_ddc_port(radeon_connector
);
760 if (radeon_connector_encoder_get_dp_bridge_encoder_id(&radeon_connector
->base
) !=
761 ENCODER_OBJECT_ID_NONE
) {
762 if (radeon_connector
->ddc_bus
->has_aux
)
763 radeon_connector
->edid
= drm_get_edid(&radeon_connector
->base
,
764 &radeon_connector
->ddc_bus
->aux
.ddc
);
765 } else if ((radeon_connector
->base
.connector_type
== DRM_MODE_CONNECTOR_DisplayPort
) ||
766 (radeon_connector
->base
.connector_type
== DRM_MODE_CONNECTOR_eDP
)) {
767 struct radeon_connector_atom_dig
*dig
= radeon_connector
->con_priv
;
769 if ((dig
->dp_sink_type
== CONNECTOR_OBJECT_ID_DISPLAYPORT
||
770 dig
->dp_sink_type
== CONNECTOR_OBJECT_ID_eDP
) &&
771 radeon_connector
->ddc_bus
->has_aux
)
772 radeon_connector
->edid
= drm_get_edid(&radeon_connector
->base
,
773 &radeon_connector
->ddc_bus
->aux
.ddc
);
774 else if (radeon_connector
->ddc_bus
&& !radeon_connector
->edid
)
775 radeon_connector
->edid
= drm_get_edid(&radeon_connector
->base
,
776 &radeon_connector
->ddc_bus
->adapter
);
778 if (radeon_connector
->ddc_bus
&& !radeon_connector
->edid
)
779 radeon_connector
->edid
= drm_get_edid(&radeon_connector
->base
,
780 &radeon_connector
->ddc_bus
->adapter
);
783 if (!radeon_connector
->edid
) {
784 if (rdev
->is_atom_bios
) {
785 /* some laptops provide a hardcoded edid in rom for LCDs */
786 if (((radeon_connector
->base
.connector_type
== DRM_MODE_CONNECTOR_LVDS
) ||
787 (radeon_connector
->base
.connector_type
== DRM_MODE_CONNECTOR_eDP
)))
788 radeon_connector
->edid
= radeon_bios_get_hardcoded_edid(rdev
);
790 /* some servers provide a hardcoded edid in rom for KVMs */
791 radeon_connector
->edid
= radeon_bios_get_hardcoded_edid(rdev
);
793 if (radeon_connector
->edid
) {
794 drm_mode_connector_update_edid_property(&radeon_connector
->base
, radeon_connector
->edid
);
795 ret
= drm_add_edid_modes(&radeon_connector
->base
, radeon_connector
->edid
);
796 drm_edid_to_eld(&radeon_connector
->base
, radeon_connector
->edid
);
799 drm_mode_connector_update_edid_property(&radeon_connector
->base
, NULL
);
806 * avivo_reduce_ratio - fractional number reduction
810 * @nom_min: minimum value for nominator
811 * @den_min: minimum value for denominator
813 * Find the greatest common divisor and apply it on both nominator and
814 * denominator, but make nominator and denominator are at least as large
815 * as their minimum values.
817 static void avivo_reduce_ratio(unsigned *nom
, unsigned *den
,
818 unsigned nom_min
, unsigned den_min
)
822 /* reduce the numbers to a simpler ratio */
823 tmp
= gcd(*nom
, *den
);
827 /* make sure nominator is large enough */
828 if (*nom
< nom_min
) {
829 tmp
= (nom_min
+ *nom
- 1) / *nom
;
834 /* make sure the denominator is large enough */
835 if (*den
< den_min
) {
836 tmp
= (den_min
+ *den
- 1) / *den
;
843 * avivo_get_fb_ref_div - feedback and ref divider calculation
847 * @post_div: post divider
848 * @fb_div_max: feedback divider maximum
849 * @ref_div_max: reference divider maximum
850 * @fb_div: resulting feedback divider
851 * @ref_div: resulting reference divider
853 * Calculate feedback and reference divider for a given post divider. Makes
854 * sure we stay within the limits.
856 static void avivo_get_fb_ref_div(unsigned nom
, unsigned den
, unsigned post_div
,
857 unsigned fb_div_max
, unsigned ref_div_max
,
858 unsigned *fb_div
, unsigned *ref_div
)
860 /* limit reference * post divider to a maximum */
861 ref_div_max
= min(210 / post_div
, ref_div_max
);
863 /* get matching reference and feedback divider */
864 *ref_div
= min(max(DIV_ROUND_CLOSEST(den
, post_div
), 1u), ref_div_max
);
865 *fb_div
= DIV_ROUND_CLOSEST(nom
* *ref_div
* post_div
, den
);
867 /* limit fb divider to its maximum */
868 if (*fb_div
> fb_div_max
) {
869 *ref_div
= DIV_ROUND_CLOSEST(*ref_div
* fb_div_max
, *fb_div
);
870 *fb_div
= fb_div_max
;
875 * radeon_compute_pll_avivo - compute PLL paramaters
877 * @pll: information about the PLL
878 * @dot_clock_p: resulting pixel clock
879 * fb_div_p: resulting feedback divider
880 * frac_fb_div_p: fractional part of the feedback divider
881 * ref_div_p: resulting reference divider
882 * post_div_p: resulting reference divider
884 * Try to calculate the PLL parameters to generate the given frequency:
885 * dot_clock = (ref_freq * feedback_div) / (ref_div * post_div)
887 void radeon_compute_pll_avivo(struct radeon_pll
*pll
,
895 unsigned target_clock
= pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
?
898 unsigned fb_div_min
, fb_div_max
, fb_div
;
899 unsigned post_div_min
, post_div_max
, post_div
;
900 unsigned ref_div_min
, ref_div_max
, ref_div
;
901 unsigned post_div_best
, diff_best
;
904 /* determine allowed feedback divider range */
905 fb_div_min
= pll
->min_feedback_div
;
906 fb_div_max
= pll
->max_feedback_div
;
908 if (pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
) {
913 /* determine allowed ref divider range */
914 if (pll
->flags
& RADEON_PLL_USE_REF_DIV
)
915 ref_div_min
= pll
->reference_div
;
917 ref_div_min
= pll
->min_ref_div
;
919 if (pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
&&
920 pll
->flags
& RADEON_PLL_USE_REF_DIV
)
921 ref_div_max
= pll
->reference_div
;
923 ref_div_max
= pll
->max_ref_div
;
925 /* determine allowed post divider range */
926 if (pll
->flags
& RADEON_PLL_USE_POST_DIV
) {
927 post_div_min
= pll
->post_div
;
928 post_div_max
= pll
->post_div
;
930 unsigned vco_min
, vco_max
;
932 if (pll
->flags
& RADEON_PLL_IS_LCD
) {
933 vco_min
= pll
->lcd_pll_out_min
;
934 vco_max
= pll
->lcd_pll_out_max
;
936 vco_min
= pll
->pll_out_min
;
937 vco_max
= pll
->pll_out_max
;
940 if (pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
) {
945 post_div_min
= vco_min
/ target_clock
;
946 if ((target_clock
* post_div_min
) < vco_min
)
948 if (post_div_min
< pll
->min_post_div
)
949 post_div_min
= pll
->min_post_div
;
951 post_div_max
= vco_max
/ target_clock
;
952 if ((target_clock
* post_div_max
) > vco_max
)
954 if (post_div_max
> pll
->max_post_div
)
955 post_div_max
= pll
->max_post_div
;
958 /* represent the searched ratio as fractional number */
960 den
= pll
->reference_freq
;
962 /* reduce the numbers to a simpler ratio */
963 avivo_reduce_ratio(&nom
, &den
, fb_div_min
, post_div_min
);
965 /* now search for a post divider */
966 if (pll
->flags
& RADEON_PLL_PREFER_MINM_OVER_MAXP
)
967 post_div_best
= post_div_min
;
969 post_div_best
= post_div_max
;
972 for (post_div
= post_div_min
; post_div
<= post_div_max
; ++post_div
) {
974 avivo_get_fb_ref_div(nom
, den
, post_div
, fb_div_max
,
975 ref_div_max
, &fb_div
, &ref_div
);
976 diff
= abs(target_clock
- (pll
->reference_freq
* fb_div
) /
977 (ref_div
* post_div
));
979 if (diff
< diff_best
|| (diff
== diff_best
&&
980 !(pll
->flags
& RADEON_PLL_PREFER_MINM_OVER_MAXP
))) {
982 post_div_best
= post_div
;
986 post_div
= post_div_best
;
988 /* get the feedback and reference divider for the optimal value */
989 avivo_get_fb_ref_div(nom
, den
, post_div
, fb_div_max
, ref_div_max
,
992 /* reduce the numbers to a simpler ratio once more */
993 /* this also makes sure that the reference divider is large enough */
994 avivo_reduce_ratio(&fb_div
, &ref_div
, fb_div_min
, ref_div_min
);
996 /* and finally save the result */
997 if (pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
) {
998 *fb_div_p
= fb_div
/ 10;
999 *frac_fb_div_p
= fb_div
% 10;
1005 *dot_clock_p
= ((pll
->reference_freq
* *fb_div_p
* 10) +
1006 (pll
->reference_freq
* *frac_fb_div_p
)) /
1007 (ref_div
* post_div
* 10);
1008 *ref_div_p
= ref_div
;
1009 *post_div_p
= post_div
;
1011 DRM_DEBUG_KMS("%d - %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1012 freq
, *dot_clock_p
* 10, *fb_div_p
, *frac_fb_div_p
,
1017 static inline uint32_t radeon_div(uint64_t n
, uint32_t d
)
1027 void radeon_compute_pll_legacy(struct radeon_pll
*pll
,
1029 uint32_t *dot_clock_p
,
1031 uint32_t *frac_fb_div_p
,
1032 uint32_t *ref_div_p
,
1033 uint32_t *post_div_p
)
1035 uint32_t min_ref_div
= pll
->min_ref_div
;
1036 uint32_t max_ref_div
= pll
->max_ref_div
;
1037 uint32_t min_post_div
= pll
->min_post_div
;
1038 uint32_t max_post_div
= pll
->max_post_div
;
1039 uint32_t min_fractional_feed_div
= 0;
1040 uint32_t max_fractional_feed_div
= 0;
1041 uint32_t best_vco
= pll
->best_vco
;
1042 uint32_t best_post_div
= 1;
1043 uint32_t best_ref_div
= 1;
1044 uint32_t best_feedback_div
= 1;
1045 uint32_t best_frac_feedback_div
= 0;
1046 uint32_t best_freq
= -1;
1047 uint32_t best_error
= 0xffffffff;
1048 uint32_t best_vco_diff
= 1;
1050 u32 pll_out_min
, pll_out_max
;
1052 DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq
, pll
->min_ref_div
, pll
->max_ref_div
);
1055 if (pll
->flags
& RADEON_PLL_IS_LCD
) {
1056 pll_out_min
= pll
->lcd_pll_out_min
;
1057 pll_out_max
= pll
->lcd_pll_out_max
;
1059 pll_out_min
= pll
->pll_out_min
;
1060 pll_out_max
= pll
->pll_out_max
;
1063 if (pll_out_min
> 64800)
1064 pll_out_min
= 64800;
1066 if (pll
->flags
& RADEON_PLL_USE_REF_DIV
)
1067 min_ref_div
= max_ref_div
= pll
->reference_div
;
1069 while (min_ref_div
< max_ref_div
-1) {
1070 uint32_t mid
= (min_ref_div
+ max_ref_div
) / 2;
1071 uint32_t pll_in
= pll
->reference_freq
/ mid
;
1072 if (pll_in
< pll
->pll_in_min
)
1074 else if (pll_in
> pll
->pll_in_max
)
1081 if (pll
->flags
& RADEON_PLL_USE_POST_DIV
)
1082 min_post_div
= max_post_div
= pll
->post_div
;
1084 if (pll
->flags
& RADEON_PLL_USE_FRAC_FB_DIV
) {
1085 min_fractional_feed_div
= pll
->min_frac_feedback_div
;
1086 max_fractional_feed_div
= pll
->max_frac_feedback_div
;
1089 for (post_div
= max_post_div
; post_div
>= min_post_div
; --post_div
) {
1092 if ((pll
->flags
& RADEON_PLL_NO_ODD_POST_DIV
) && (post_div
& 1))
1095 /* legacy radeons only have a few post_divs */
1096 if (pll
->flags
& RADEON_PLL_LEGACY
) {
1097 if ((post_div
== 5) ||
1108 for (ref_div
= min_ref_div
; ref_div
<= max_ref_div
; ++ref_div
) {
1109 uint32_t feedback_div
, current_freq
= 0, error
, vco_diff
;
1110 uint32_t pll_in
= pll
->reference_freq
/ ref_div
;
1111 uint32_t min_feed_div
= pll
->min_feedback_div
;
1112 uint32_t max_feed_div
= pll
->max_feedback_div
+ 1;
1114 if (pll_in
< pll
->pll_in_min
|| pll_in
> pll
->pll_in_max
)
1117 while (min_feed_div
< max_feed_div
) {
1119 uint32_t min_frac_feed_div
= min_fractional_feed_div
;
1120 uint32_t max_frac_feed_div
= max_fractional_feed_div
+ 1;
1121 uint32_t frac_feedback_div
;
1124 feedback_div
= (min_feed_div
+ max_feed_div
) / 2;
1126 tmp
= (uint64_t)pll
->reference_freq
* feedback_div
;
1127 vco
= radeon_div(tmp
, ref_div
);
1129 if (vco
< pll_out_min
) {
1130 min_feed_div
= feedback_div
+ 1;
1132 } else if (vco
> pll_out_max
) {
1133 max_feed_div
= feedback_div
;
1137 while (min_frac_feed_div
< max_frac_feed_div
) {
1138 frac_feedback_div
= (min_frac_feed_div
+ max_frac_feed_div
) / 2;
1139 tmp
= (uint64_t)pll
->reference_freq
* 10000 * feedback_div
;
1140 tmp
+= (uint64_t)pll
->reference_freq
* 1000 * frac_feedback_div
;
1141 current_freq
= radeon_div(tmp
, ref_div
* post_div
);
1143 if (pll
->flags
& RADEON_PLL_PREFER_CLOSEST_LOWER
) {
1144 if (freq
< current_freq
)
1147 error
= freq
- current_freq
;
1149 error
= abs(current_freq
- freq
);
1150 vco_diff
= abs(vco
- best_vco
);
1152 if ((best_vco
== 0 && error
< best_error
) ||
1154 ((best_error
> 100 && error
< best_error
- 100) ||
1155 (abs(error
- best_error
) < 100 && vco_diff
< best_vco_diff
)))) {
1156 best_post_div
= post_div
;
1157 best_ref_div
= ref_div
;
1158 best_feedback_div
= feedback_div
;
1159 best_frac_feedback_div
= frac_feedback_div
;
1160 best_freq
= current_freq
;
1162 best_vco_diff
= vco_diff
;
1163 } else if (current_freq
== freq
) {
1164 if (best_freq
== -1) {
1165 best_post_div
= post_div
;
1166 best_ref_div
= ref_div
;
1167 best_feedback_div
= feedback_div
;
1168 best_frac_feedback_div
= frac_feedback_div
;
1169 best_freq
= current_freq
;
1171 best_vco_diff
= vco_diff
;
1172 } else if (((pll
->flags
& RADEON_PLL_PREFER_LOW_REF_DIV
) && (ref_div
< best_ref_div
)) ||
1173 ((pll
->flags
& RADEON_PLL_PREFER_HIGH_REF_DIV
) && (ref_div
> best_ref_div
)) ||
1174 ((pll
->flags
& RADEON_PLL_PREFER_LOW_FB_DIV
) && (feedback_div
< best_feedback_div
)) ||
1175 ((pll
->flags
& RADEON_PLL_PREFER_HIGH_FB_DIV
) && (feedback_div
> best_feedback_div
)) ||
1176 ((pll
->flags
& RADEON_PLL_PREFER_LOW_POST_DIV
) && (post_div
< best_post_div
)) ||
1177 ((pll
->flags
& RADEON_PLL_PREFER_HIGH_POST_DIV
) && (post_div
> best_post_div
))) {
1178 best_post_div
= post_div
;
1179 best_ref_div
= ref_div
;
1180 best_feedback_div
= feedback_div
;
1181 best_frac_feedback_div
= frac_feedback_div
;
1182 best_freq
= current_freq
;
1184 best_vco_diff
= vco_diff
;
1187 if (current_freq
< freq
)
1188 min_frac_feed_div
= frac_feedback_div
+ 1;
1190 max_frac_feed_div
= frac_feedback_div
;
1192 if (current_freq
< freq
)
1193 min_feed_div
= feedback_div
+ 1;
1195 max_feed_div
= feedback_div
;
1200 *dot_clock_p
= best_freq
/ 10000;
1201 *fb_div_p
= best_feedback_div
;
1202 *frac_fb_div_p
= best_frac_feedback_div
;
1203 *ref_div_p
= best_ref_div
;
1204 *post_div_p
= best_post_div
;
1205 DRM_DEBUG_KMS("%lld %d, pll dividers - fb: %d.%d ref: %d, post %d\n",
1207 best_freq
/ 1000, best_feedback_div
, best_frac_feedback_div
,
1208 best_ref_div
, best_post_div
);
1212 static void radeon_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
1214 struct radeon_framebuffer
*radeon_fb
= to_radeon_framebuffer(fb
);
1216 if (radeon_fb
->obj
) {
1217 drm_gem_object_unreference_unlocked(radeon_fb
->obj
);
1219 drm_framebuffer_cleanup(fb
);
1223 static int radeon_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
1224 struct drm_file
*file_priv
,
1225 unsigned int *handle
)
1227 struct radeon_framebuffer
*radeon_fb
= to_radeon_framebuffer(fb
);
1229 return drm_gem_handle_create(file_priv
, radeon_fb
->obj
, handle
);
1232 static const struct drm_framebuffer_funcs radeon_fb_funcs
= {
1233 .destroy
= radeon_user_framebuffer_destroy
,
1234 .create_handle
= radeon_user_framebuffer_create_handle
,
1238 radeon_framebuffer_init(struct drm_device
*dev
,
1239 struct radeon_framebuffer
*rfb
,
1240 struct drm_mode_fb_cmd2
*mode_cmd
,
1241 struct drm_gem_object
*obj
)
1245 drm_helper_mode_fill_fb_struct(&rfb
->base
, mode_cmd
);
1246 ret
= drm_framebuffer_init(dev
, &rfb
->base
, &radeon_fb_funcs
);
1254 static struct drm_framebuffer
*
1255 radeon_user_framebuffer_create(struct drm_device
*dev
,
1256 struct drm_file
*file_priv
,
1257 struct drm_mode_fb_cmd2
*mode_cmd
)
1259 struct drm_gem_object
*obj
;
1260 struct radeon_framebuffer
*radeon_fb
;
1263 obj
= drm_gem_object_lookup(dev
, file_priv
, mode_cmd
->handles
[0]);
1265 dev_err(&dev
->pdev
->dev
, "No GEM object associated to handle 0x%08X, "
1266 "can't create framebuffer\n", mode_cmd
->handles
[0]);
1267 return ERR_PTR(-ENOENT
);
1270 radeon_fb
= kzalloc(sizeof(*radeon_fb
), GFP_KERNEL
);
1271 if (radeon_fb
== NULL
) {
1272 drm_gem_object_unreference_unlocked(obj
);
1273 return ERR_PTR(-ENOMEM
);
1276 ret
= radeon_framebuffer_init(dev
, radeon_fb
, mode_cmd
, obj
);
1279 drm_gem_object_unreference_unlocked(obj
);
1280 return ERR_PTR(ret
);
1283 return &radeon_fb
->base
;
1286 static void radeon_output_poll_changed(struct drm_device
*dev
)
1288 struct radeon_device
*rdev
= dev
->dev_private
;
1289 radeon_fb_output_poll_changed(rdev
);
1292 static const struct drm_mode_config_funcs radeon_mode_funcs
= {
1293 .fb_create
= radeon_user_framebuffer_create
,
1294 .output_poll_changed
= radeon_output_poll_changed
1297 static struct drm_prop_enum_list radeon_tmds_pll_enum_list
[] =
1302 static struct drm_prop_enum_list radeon_tv_std_enum_list
[] =
1303 { { TV_STD_NTSC
, "ntsc" },
1304 { TV_STD_PAL
, "pal" },
1305 { TV_STD_PAL_M
, "pal-m" },
1306 { TV_STD_PAL_60
, "pal-60" },
1307 { TV_STD_NTSC_J
, "ntsc-j" },
1308 { TV_STD_SCART_PAL
, "scart-pal" },
1309 { TV_STD_PAL_CN
, "pal-cn" },
1310 { TV_STD_SECAM
, "secam" },
1313 static struct drm_prop_enum_list radeon_underscan_enum_list
[] =
1314 { { UNDERSCAN_OFF
, "off" },
1315 { UNDERSCAN_ON
, "on" },
1316 { UNDERSCAN_AUTO
, "auto" },
1319 static struct drm_prop_enum_list radeon_audio_enum_list
[] =
1320 { { RADEON_AUDIO_DISABLE
, "off" },
1321 { RADEON_AUDIO_ENABLE
, "on" },
1322 { RADEON_AUDIO_AUTO
, "auto" },
1325 /* XXX support different dither options? spatial, temporal, both, etc. */
1326 static struct drm_prop_enum_list radeon_dither_enum_list
[] =
1327 { { RADEON_FMT_DITHER_DISABLE
, "off" },
1328 { RADEON_FMT_DITHER_ENABLE
, "on" },
1331 static int radeon_modeset_create_props(struct radeon_device
*rdev
)
1335 if (rdev
->is_atom_bios
) {
1336 rdev
->mode_info
.coherent_mode_property
=
1337 drm_property_create_range(rdev
->ddev
, 0 , "coherent", 0, 1);
1338 if (!rdev
->mode_info
.coherent_mode_property
)
1342 if (!ASIC_IS_AVIVO(rdev
)) {
1343 sz
= ARRAY_SIZE(radeon_tmds_pll_enum_list
);
1344 rdev
->mode_info
.tmds_pll_property
=
1345 drm_property_create_enum(rdev
->ddev
, 0,
1347 radeon_tmds_pll_enum_list
, sz
);
1350 rdev
->mode_info
.load_detect_property
=
1351 drm_property_create_range(rdev
->ddev
, 0, "load detection", 0, 1);
1352 if (!rdev
->mode_info
.load_detect_property
)
1355 drm_mode_create_scaling_mode_property(rdev
->ddev
);
1357 sz
= ARRAY_SIZE(radeon_tv_std_enum_list
);
1358 rdev
->mode_info
.tv_std_property
=
1359 drm_property_create_enum(rdev
->ddev
, 0,
1361 radeon_tv_std_enum_list
, sz
);
1363 sz
= ARRAY_SIZE(radeon_underscan_enum_list
);
1364 rdev
->mode_info
.underscan_property
=
1365 drm_property_create_enum(rdev
->ddev
, 0,
1367 radeon_underscan_enum_list
, sz
);
1369 rdev
->mode_info
.underscan_hborder_property
=
1370 drm_property_create_range(rdev
->ddev
, 0,
1371 "underscan hborder", 0, 128);
1372 if (!rdev
->mode_info
.underscan_hborder_property
)
1375 rdev
->mode_info
.underscan_vborder_property
=
1376 drm_property_create_range(rdev
->ddev
, 0,
1377 "underscan vborder", 0, 128);
1378 if (!rdev
->mode_info
.underscan_vborder_property
)
1381 sz
= ARRAY_SIZE(radeon_audio_enum_list
);
1382 rdev
->mode_info
.audio_property
=
1383 drm_property_create_enum(rdev
->ddev
, 0,
1385 radeon_audio_enum_list
, sz
);
1387 sz
= ARRAY_SIZE(radeon_dither_enum_list
);
1388 rdev
->mode_info
.dither_property
=
1389 drm_property_create_enum(rdev
->ddev
, 0,
1391 radeon_dither_enum_list
, sz
);
1396 void radeon_update_display_priority(struct radeon_device
*rdev
)
1398 /* adjustment options for the display watermarks */
1399 if ((radeon_disp_priority
== 0) || (radeon_disp_priority
> 2)) {
1400 /* set display priority to high for r3xx, rv515 chips
1401 * this avoids flickering due to underflow to the
1402 * display controllers during heavy acceleration.
1403 * Don't force high on rs4xx igp chips as it seems to
1404 * affect the sound card. See kernel bug 15982.
1406 if ((ASIC_IS_R300(rdev
) || (rdev
->family
== CHIP_RV515
)) &&
1407 !(rdev
->flags
& RADEON_IS_IGP
))
1408 rdev
->disp_priority
= 2;
1410 rdev
->disp_priority
= 0;
1412 rdev
->disp_priority
= radeon_disp_priority
;
1417 * Allocate hdmi structs and determine register offsets
1419 static void radeon_afmt_init(struct radeon_device
*rdev
)
1423 for (i
= 0; i
< RADEON_MAX_AFMT_BLOCKS
; i
++)
1424 rdev
->mode_info
.afmt
[i
] = NULL
;
1426 if (ASIC_IS_NODCE(rdev
)) {
1428 } else if (ASIC_IS_DCE4(rdev
)) {
1429 static uint32_t eg_offsets
[] = {
1430 EVERGREEN_CRTC0_REGISTER_OFFSET
,
1431 EVERGREEN_CRTC1_REGISTER_OFFSET
,
1432 EVERGREEN_CRTC2_REGISTER_OFFSET
,
1433 EVERGREEN_CRTC3_REGISTER_OFFSET
,
1434 EVERGREEN_CRTC4_REGISTER_OFFSET
,
1435 EVERGREEN_CRTC5_REGISTER_OFFSET
,
1440 /* DCE8 has 7 audio blocks tied to DIG encoders */
1441 /* DCE6 has 6 audio blocks tied to DIG encoders */
1442 /* DCE4/5 has 6 audio blocks tied to DIG encoders */
1443 /* DCE4.1 has 2 audio blocks tied to DIG encoders */
1444 if (ASIC_IS_DCE8(rdev
))
1446 else if (ASIC_IS_DCE6(rdev
))
1448 else if (ASIC_IS_DCE5(rdev
))
1450 else if (ASIC_IS_DCE41(rdev
))
1455 BUG_ON(num_afmt
> ARRAY_SIZE(eg_offsets
));
1456 for (i
= 0; i
< num_afmt
; i
++) {
1457 rdev
->mode_info
.afmt
[i
] = kzalloc(sizeof(struct radeon_afmt
), GFP_KERNEL
);
1458 if (rdev
->mode_info
.afmt
[i
]) {
1459 rdev
->mode_info
.afmt
[i
]->offset
= eg_offsets
[i
];
1460 rdev
->mode_info
.afmt
[i
]->id
= i
;
1463 } else if (ASIC_IS_DCE3(rdev
)) {
1464 /* DCE3.x has 2 audio blocks tied to DIG encoders */
1465 rdev
->mode_info
.afmt
[0] = kzalloc(sizeof(struct radeon_afmt
), GFP_KERNEL
);
1466 if (rdev
->mode_info
.afmt
[0]) {
1467 rdev
->mode_info
.afmt
[0]->offset
= DCE3_HDMI_OFFSET0
;
1468 rdev
->mode_info
.afmt
[0]->id
= 0;
1470 rdev
->mode_info
.afmt
[1] = kzalloc(sizeof(struct radeon_afmt
), GFP_KERNEL
);
1471 if (rdev
->mode_info
.afmt
[1]) {
1472 rdev
->mode_info
.afmt
[1]->offset
= DCE3_HDMI_OFFSET1
;
1473 rdev
->mode_info
.afmt
[1]->id
= 1;
1475 } else if (ASIC_IS_DCE2(rdev
)) {
1476 /* DCE2 has at least 1 routable audio block */
1477 rdev
->mode_info
.afmt
[0] = kzalloc(sizeof(struct radeon_afmt
), GFP_KERNEL
);
1478 if (rdev
->mode_info
.afmt
[0]) {
1479 rdev
->mode_info
.afmt
[0]->offset
= DCE2_HDMI_OFFSET0
;
1480 rdev
->mode_info
.afmt
[0]->id
= 0;
1482 /* r6xx has 2 routable audio blocks */
1483 if (rdev
->family
>= CHIP_R600
) {
1484 rdev
->mode_info
.afmt
[1] = kzalloc(sizeof(struct radeon_afmt
), GFP_KERNEL
);
1485 if (rdev
->mode_info
.afmt
[1]) {
1486 rdev
->mode_info
.afmt
[1]->offset
= DCE2_HDMI_OFFSET1
;
1487 rdev
->mode_info
.afmt
[1]->id
= 1;
1493 static void radeon_afmt_fini(struct radeon_device
*rdev
)
1497 for (i
= 0; i
< RADEON_MAX_AFMT_BLOCKS
; i
++) {
1498 kfree(rdev
->mode_info
.afmt
[i
]);
1499 rdev
->mode_info
.afmt
[i
] = NULL
;
1503 int radeon_modeset_init(struct radeon_device
*rdev
)
1508 drm_mode_config_init(rdev
->ddev
);
1509 rdev
->mode_info
.mode_config_initialized
= true;
1511 rdev
->ddev
->mode_config
.funcs
= &radeon_mode_funcs
;
1513 if (ASIC_IS_DCE5(rdev
)) {
1514 rdev
->ddev
->mode_config
.max_width
= 16384;
1515 rdev
->ddev
->mode_config
.max_height
= 16384;
1516 } else if (ASIC_IS_AVIVO(rdev
)) {
1517 rdev
->ddev
->mode_config
.max_width
= 8192;
1518 rdev
->ddev
->mode_config
.max_height
= 8192;
1520 rdev
->ddev
->mode_config
.max_width
= 4096;
1521 rdev
->ddev
->mode_config
.max_height
= 4096;
1524 rdev
->ddev
->mode_config
.preferred_depth
= 24;
1525 rdev
->ddev
->mode_config
.prefer_shadow
= 1;
1527 rdev
->ddev
->mode_config
.fb_base
= rdev
->mc
.aper_base
;
1529 ret
= radeon_modeset_create_props(rdev
);
1534 /* init i2c buses */
1535 radeon_i2c_init(rdev
);
1537 /* check combios for a valid hardcoded EDID - Sun servers */
1538 if (!rdev
->is_atom_bios
) {
1539 /* check for hardcoded EDID in BIOS */
1540 radeon_combios_check_hardcoded_edid(rdev
);
1543 /* allocate crtcs */
1544 for (i
= 0; i
< rdev
->num_crtc
; i
++) {
1545 radeon_crtc_init(rdev
->ddev
, i
);
1548 /* okay we should have all the bios connectors */
1549 ret
= radeon_setup_enc_conn(rdev
->ddev
);
1554 /* init dig PHYs, disp eng pll */
1555 if (rdev
->is_atom_bios
) {
1556 radeon_atom_encoder_init(rdev
);
1557 radeon_atom_disp_eng_pll_init(rdev
);
1560 /* initialize hpd */
1561 radeon_hpd_init(rdev
);
1564 radeon_afmt_init(rdev
);
1566 radeon_fbdev_init(rdev
);
1567 drm_kms_helper_poll_init(rdev
->ddev
);
1569 if (rdev
->pm
.dpm_enabled
) {
1570 /* do dpm late init */
1571 ret
= radeon_pm_late_init(rdev
);
1573 rdev
->pm
.dpm_enabled
= false;
1574 DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
1576 /* set the dpm state for PX since there won't be
1577 * a modeset to call this.
1579 radeon_pm_compute_clocks(rdev
);
1585 void radeon_modeset_fini(struct radeon_device
*rdev
)
1587 radeon_fbdev_fini(rdev
);
1588 kfree(rdev
->mode_info
.bios_hardcoded_edid
);
1590 if (rdev
->mode_info
.mode_config_initialized
) {
1591 radeon_afmt_fini(rdev
);
1592 drm_kms_helper_poll_fini(rdev
->ddev
);
1593 radeon_hpd_fini(rdev
);
1594 drm_mode_config_cleanup(rdev
->ddev
);
1595 rdev
->mode_info
.mode_config_initialized
= false;
1597 /* free i2c buses */
1598 radeon_i2c_fini(rdev
);
1601 static bool is_hdtv_mode(const struct drm_display_mode
*mode
)
1603 /* try and guess if this is a tv or a monitor */
1604 if ((mode
->vdisplay
== 480 && mode
->hdisplay
== 720) || /* 480p */
1605 (mode
->vdisplay
== 576) || /* 576p */
1606 (mode
->vdisplay
== 720) || /* 720p */
1607 (mode
->vdisplay
== 1080)) /* 1080p */
1613 bool radeon_crtc_scaling_mode_fixup(struct drm_crtc
*crtc
,
1614 const struct drm_display_mode
*mode
,
1615 struct drm_display_mode
*adjusted_mode
)
1617 struct drm_device
*dev
= crtc
->dev
;
1618 struct radeon_device
*rdev
= dev
->dev_private
;
1619 struct drm_encoder
*encoder
;
1620 struct radeon_crtc
*radeon_crtc
= to_radeon_crtc(crtc
);
1621 struct radeon_encoder
*radeon_encoder
;
1622 struct drm_connector
*connector
;
1623 struct radeon_connector
*radeon_connector
;
1625 u32 src_v
= 1, dst_v
= 1;
1626 u32 src_h
= 1, dst_h
= 1;
1628 radeon_crtc
->h_border
= 0;
1629 radeon_crtc
->v_border
= 0;
1631 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
) {
1632 if (encoder
->crtc
!= crtc
)
1634 radeon_encoder
= to_radeon_encoder(encoder
);
1635 connector
= radeon_get_connector_for_encoder(encoder
);
1636 radeon_connector
= to_radeon_connector(connector
);
1640 if (radeon_encoder
->rmx_type
== RMX_OFF
)
1641 radeon_crtc
->rmx_type
= RMX_OFF
;
1642 else if (mode
->hdisplay
< radeon_encoder
->native_mode
.hdisplay
||
1643 mode
->vdisplay
< radeon_encoder
->native_mode
.vdisplay
)
1644 radeon_crtc
->rmx_type
= radeon_encoder
->rmx_type
;
1646 radeon_crtc
->rmx_type
= RMX_OFF
;
1647 /* copy native mode */
1648 memcpy(&radeon_crtc
->native_mode
,
1649 &radeon_encoder
->native_mode
,
1650 sizeof(struct drm_display_mode
));
1651 src_v
= crtc
->mode
.vdisplay
;
1652 dst_v
= radeon_crtc
->native_mode
.vdisplay
;
1653 src_h
= crtc
->mode
.hdisplay
;
1654 dst_h
= radeon_crtc
->native_mode
.hdisplay
;
1656 /* fix up for overscan on hdmi */
1657 if (ASIC_IS_AVIVO(rdev
) &&
1658 (!(mode
->flags
& DRM_MODE_FLAG_INTERLACE
)) &&
1659 ((radeon_encoder
->underscan_type
== UNDERSCAN_ON
) ||
1660 ((radeon_encoder
->underscan_type
== UNDERSCAN_AUTO
) &&
1661 drm_detect_hdmi_monitor(radeon_connector
->edid
) &&
1662 is_hdtv_mode(mode
)))) {
1663 if (radeon_encoder
->underscan_hborder
!= 0)
1664 radeon_crtc
->h_border
= radeon_encoder
->underscan_hborder
;
1666 radeon_crtc
->h_border
= (mode
->hdisplay
>> 5) + 16;
1667 if (radeon_encoder
->underscan_vborder
!= 0)
1668 radeon_crtc
->v_border
= radeon_encoder
->underscan_vborder
;
1670 radeon_crtc
->v_border
= (mode
->vdisplay
>> 5) + 16;
1671 radeon_crtc
->rmx_type
= RMX_FULL
;
1672 src_v
= crtc
->mode
.vdisplay
;
1673 dst_v
= crtc
->mode
.vdisplay
- (radeon_crtc
->v_border
* 2);
1674 src_h
= crtc
->mode
.hdisplay
;
1675 dst_h
= crtc
->mode
.hdisplay
- (radeon_crtc
->h_border
* 2);
1679 if (radeon_crtc
->rmx_type
!= radeon_encoder
->rmx_type
) {
1680 /* WARNING: Right now this can't happen but
1681 * in the future we need to check that scaling
1682 * are consistent across different encoder
1683 * (ie all encoder can work with the same
1686 DRM_ERROR("Scaling not consistent across encoder.\n");
1691 if (radeon_crtc
->rmx_type
!= RMX_OFF
) {
1693 a
.full
= dfixed_const(src_v
);
1694 b
.full
= dfixed_const(dst_v
);
1695 radeon_crtc
->vsc
.full
= dfixed_div(a
, b
);
1696 a
.full
= dfixed_const(src_h
);
1697 b
.full
= dfixed_const(dst_h
);
1698 radeon_crtc
->hsc
.full
= dfixed_div(a
, b
);
1700 radeon_crtc
->vsc
.full
= dfixed_const(1);
1701 radeon_crtc
->hsc
.full
= dfixed_const(1);
1707 * Retrieve current video scanout position of crtc on a given gpu, and
1708 * an optional accurate timestamp of when query happened.
1710 * \param dev Device to query.
1711 * \param crtc Crtc to query.
1712 * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
1713 * \param *vpos Location where vertical scanout position should be stored.
1714 * \param *hpos Location where horizontal scanout position should go.
1715 * \param *stime Target location for timestamp taken immediately before
1716 * scanout position query. Can be NULL to skip timestamp.
1717 * \param *etime Target location for timestamp taken immediately after
1718 * scanout position query. Can be NULL to skip timestamp.
1720 * Returns vpos as a positive number while in active scanout area.
1721 * Returns vpos as a negative number inside vblank, counting the number
1722 * of scanlines to go until end of vblank, e.g., -1 means "one scanline
1723 * until start of active scanout / end of vblank."
1725 * \return Flags, or'ed together as follows:
1727 * DRM_SCANOUTPOS_VALID = Query successful.
1728 * DRM_SCANOUTPOS_INVBL = Inside vblank.
1729 * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of
1730 * this flag means that returned position may be offset by a constant but
1731 * unknown small number of scanlines wrt. real scanout position.
1734 int radeon_get_crtc_scanoutpos(struct drm_device
*dev
, int crtc
, unsigned int flags
,
1735 int *vpos
, int *hpos
, ktime_t
*stime
, ktime_t
*etime
)
1737 u32 stat_crtc
= 0, vbl
= 0, position
= 0;
1738 int vbl_start
, vbl_end
, vtotal
, ret
= 0;
1741 struct radeon_device
*rdev
= dev
->dev_private
;
1743 /* preempt_disable_rt() should go right here in PREEMPT_RT patchset. */
1745 /* Get optional system timestamp before query. */
1747 *stime
= ktime_get();
1749 if (ASIC_IS_DCE4(rdev
)) {
1751 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1752 EVERGREEN_CRTC0_REGISTER_OFFSET
);
1753 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1754 EVERGREEN_CRTC0_REGISTER_OFFSET
);
1755 ret
|= DRM_SCANOUTPOS_VALID
;
1758 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1759 EVERGREEN_CRTC1_REGISTER_OFFSET
);
1760 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1761 EVERGREEN_CRTC1_REGISTER_OFFSET
);
1762 ret
|= DRM_SCANOUTPOS_VALID
;
1765 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1766 EVERGREEN_CRTC2_REGISTER_OFFSET
);
1767 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1768 EVERGREEN_CRTC2_REGISTER_OFFSET
);
1769 ret
|= DRM_SCANOUTPOS_VALID
;
1772 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1773 EVERGREEN_CRTC3_REGISTER_OFFSET
);
1774 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1775 EVERGREEN_CRTC3_REGISTER_OFFSET
);
1776 ret
|= DRM_SCANOUTPOS_VALID
;
1779 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1780 EVERGREEN_CRTC4_REGISTER_OFFSET
);
1781 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1782 EVERGREEN_CRTC4_REGISTER_OFFSET
);
1783 ret
|= DRM_SCANOUTPOS_VALID
;
1786 vbl
= RREG32(EVERGREEN_CRTC_V_BLANK_START_END
+
1787 EVERGREEN_CRTC5_REGISTER_OFFSET
);
1788 position
= RREG32(EVERGREEN_CRTC_STATUS_POSITION
+
1789 EVERGREEN_CRTC5_REGISTER_OFFSET
);
1790 ret
|= DRM_SCANOUTPOS_VALID
;
1792 } else if (ASIC_IS_AVIVO(rdev
)) {
1794 vbl
= RREG32(AVIVO_D1CRTC_V_BLANK_START_END
);
1795 position
= RREG32(AVIVO_D1CRTC_STATUS_POSITION
);
1796 ret
|= DRM_SCANOUTPOS_VALID
;
1799 vbl
= RREG32(AVIVO_D2CRTC_V_BLANK_START_END
);
1800 position
= RREG32(AVIVO_D2CRTC_STATUS_POSITION
);
1801 ret
|= DRM_SCANOUTPOS_VALID
;
1804 /* Pre-AVIVO: Different encoding of scanout pos and vblank interval. */
1806 /* Assume vbl_end == 0, get vbl_start from
1809 vbl
= (RREG32(RADEON_CRTC_V_TOTAL_DISP
) &
1810 RADEON_CRTC_V_DISP
) >> RADEON_CRTC_V_DISP_SHIFT
;
1811 /* Only retrieve vpos from upper 16 bits, set hpos == 0. */
1812 position
= (RREG32(RADEON_CRTC_VLINE_CRNT_VLINE
) >> 16) & RADEON_CRTC_V_TOTAL
;
1813 stat_crtc
= RREG32(RADEON_CRTC_STATUS
);
1814 if (!(stat_crtc
& 1))
1817 ret
|= DRM_SCANOUTPOS_VALID
;
1820 vbl
= (RREG32(RADEON_CRTC2_V_TOTAL_DISP
) &
1821 RADEON_CRTC_V_DISP
) >> RADEON_CRTC_V_DISP_SHIFT
;
1822 position
= (RREG32(RADEON_CRTC2_VLINE_CRNT_VLINE
) >> 16) & RADEON_CRTC_V_TOTAL
;
1823 stat_crtc
= RREG32(RADEON_CRTC2_STATUS
);
1824 if (!(stat_crtc
& 1))
1827 ret
|= DRM_SCANOUTPOS_VALID
;
1831 /* Get optional system timestamp after query. */
1833 *etime
= ktime_get();
1835 /* preempt_enable_rt() should go right here in PREEMPT_RT patchset. */
1837 /* Decode into vertical and horizontal scanout position. */
1838 *vpos
= position
& 0x1fff;
1839 *hpos
= (position
>> 16) & 0x1fff;
1841 /* Valid vblank area boundaries from gpu retrieved? */
1844 ret
|= DRM_SCANOUTPOS_ACCURATE
;
1845 vbl_start
= vbl
& 0x1fff;
1846 vbl_end
= (vbl
>> 16) & 0x1fff;
1849 /* No: Fake something reasonable which gives at least ok results. */
1850 vbl_start
= rdev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vdisplay
;
1854 /* Test scanout position against vblank region. */
1855 if ((*vpos
< vbl_start
) && (*vpos
>= vbl_end
))
1858 /* Check if inside vblank area and apply corrective offsets:
1859 * vpos will then be >=0 in video scanout area, but negative
1860 * within vblank area, counting down the number of lines until
1864 /* Inside "upper part" of vblank area? Apply corrective offset if so: */
1865 if (in_vbl
&& (*vpos
>= vbl_start
)) {
1866 vtotal
= rdev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vtotal
;
1867 *vpos
= *vpos
- vtotal
;
1870 /* Correct for shifted end of vbl at vbl_end. */
1871 *vpos
= *vpos
- vbl_end
;
1875 ret
|= DRM_SCANOUTPOS_INVBL
;
1877 /* Is vpos outside nominal vblank area, but less than
1878 * 1/100 of a frame height away from start of vblank?
1879 * If so, assume this isn't a massively delayed vblank
1880 * interrupt, but a vblank interrupt that fired a few
1881 * microseconds before true start of vblank. Compensate
1882 * by adding a full frame duration to the final timestamp.
1883 * Happens, e.g., on ATI R500, R600.
1885 * We only do this if DRM_CALLED_FROM_VBLIRQ.
1887 if ((flags
& DRM_CALLED_FROM_VBLIRQ
) && !in_vbl
) {
1888 vbl_start
= rdev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vdisplay
;
1889 vtotal
= rdev
->mode_info
.crtcs
[crtc
]->base
.hwmode
.crtc_vtotal
;
1891 if (vbl_start
- *vpos
< vtotal
/ 100) {
1894 /* Signal this correction as "applied". */