2 * Copyright © 2006-2007 Intel Corporation
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:
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
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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
24 * Eric Anholt <eric@anholt.net>
27 #include <linux/i2c.h>
29 #include "intel_drv.h"
33 #include "drm_crtc_helper.h"
35 bool intel_pipe_has_type (struct drm_crtc
*crtc
, int type
);
58 #define INTEL_P2_NUM 2
61 intel_range_t dot
, vco
, n
, m
, m1
, m2
, p
, p1
;
65 #define I8XX_DOT_MIN 25000
66 #define I8XX_DOT_MAX 350000
67 #define I8XX_VCO_MIN 930000
68 #define I8XX_VCO_MAX 1400000
72 #define I8XX_M_MAX 140
73 #define I8XX_M1_MIN 18
74 #define I8XX_M1_MAX 26
76 #define I8XX_M2_MAX 16
78 #define I8XX_P_MAX 128
80 #define I8XX_P1_MAX 33
81 #define I8XX_P1_LVDS_MIN 1
82 #define I8XX_P1_LVDS_MAX 6
83 #define I8XX_P2_SLOW 4
84 #define I8XX_P2_FAST 2
85 #define I8XX_P2_LVDS_SLOW 14
86 #define I8XX_P2_LVDS_FAST 14 /* No fast option */
87 #define I8XX_P2_SLOW_LIMIT 165000
89 #define I9XX_DOT_MIN 20000
90 #define I9XX_DOT_MAX 400000
91 #define I9XX_VCO_MIN 1400000
92 #define I9XX_VCO_MAX 2800000
96 #define I9XX_M_MAX 120
97 #define I9XX_M1_MIN 10
98 #define I9XX_M1_MAX 20
100 #define I9XX_M2_MAX 9
101 #define I9XX_P_SDVO_DAC_MIN 5
102 #define I9XX_P_SDVO_DAC_MAX 80
103 #define I9XX_P_LVDS_MIN 7
104 #define I9XX_P_LVDS_MAX 98
105 #define I9XX_P1_MIN 1
106 #define I9XX_P1_MAX 8
107 #define I9XX_P2_SDVO_DAC_SLOW 10
108 #define I9XX_P2_SDVO_DAC_FAST 5
109 #define I9XX_P2_SDVO_DAC_SLOW_LIMIT 200000
110 #define I9XX_P2_LVDS_SLOW 14
111 #define I9XX_P2_LVDS_FAST 7
112 #define I9XX_P2_LVDS_SLOW_LIMIT 112000
114 #define INTEL_LIMIT_I8XX_DVO_DAC 0
115 #define INTEL_LIMIT_I8XX_LVDS 1
116 #define INTEL_LIMIT_I9XX_SDVO_DAC 2
117 #define INTEL_LIMIT_I9XX_LVDS 3
119 static const intel_limit_t intel_limits
[] = {
120 { /* INTEL_LIMIT_I8XX_DVO_DAC */
121 .dot
= { .min
= I8XX_DOT_MIN
, .max
= I8XX_DOT_MAX
},
122 .vco
= { .min
= I8XX_VCO_MIN
, .max
= I8XX_VCO_MAX
},
123 .n
= { .min
= I8XX_N_MIN
, .max
= I8XX_N_MAX
},
124 .m
= { .min
= I8XX_M_MIN
, .max
= I8XX_M_MAX
},
125 .m1
= { .min
= I8XX_M1_MIN
, .max
= I8XX_M1_MAX
},
126 .m2
= { .min
= I8XX_M2_MIN
, .max
= I8XX_M2_MAX
},
127 .p
= { .min
= I8XX_P_MIN
, .max
= I8XX_P_MAX
},
128 .p1
= { .min
= I8XX_P1_MIN
, .max
= I8XX_P1_MAX
},
129 .p2
= { .dot_limit
= I8XX_P2_SLOW_LIMIT
,
130 .p2_slow
= I8XX_P2_SLOW
, .p2_fast
= I8XX_P2_FAST
},
132 { /* INTEL_LIMIT_I8XX_LVDS */
133 .dot
= { .min
= I8XX_DOT_MIN
, .max
= I8XX_DOT_MAX
},
134 .vco
= { .min
= I8XX_VCO_MIN
, .max
= I8XX_VCO_MAX
},
135 .n
= { .min
= I8XX_N_MIN
, .max
= I8XX_N_MAX
},
136 .m
= { .min
= I8XX_M_MIN
, .max
= I8XX_M_MAX
},
137 .m1
= { .min
= I8XX_M1_MIN
, .max
= I8XX_M1_MAX
},
138 .m2
= { .min
= I8XX_M2_MIN
, .max
= I8XX_M2_MAX
},
139 .p
= { .min
= I8XX_P_MIN
, .max
= I8XX_P_MAX
},
140 .p1
= { .min
= I8XX_P1_LVDS_MIN
, .max
= I8XX_P1_LVDS_MAX
},
141 .p2
= { .dot_limit
= I8XX_P2_SLOW_LIMIT
,
142 .p2_slow
= I8XX_P2_LVDS_SLOW
, .p2_fast
= I8XX_P2_LVDS_FAST
},
144 { /* INTEL_LIMIT_I9XX_SDVO_DAC */
145 .dot
= { .min
= I9XX_DOT_MIN
, .max
= I9XX_DOT_MAX
},
146 .vco
= { .min
= I9XX_VCO_MIN
, .max
= I9XX_VCO_MAX
},
147 .n
= { .min
= I9XX_N_MIN
, .max
= I9XX_N_MAX
},
148 .m
= { .min
= I9XX_M_MIN
, .max
= I9XX_M_MAX
},
149 .m1
= { .min
= I9XX_M1_MIN
, .max
= I9XX_M1_MAX
},
150 .m2
= { .min
= I9XX_M2_MIN
, .max
= I9XX_M2_MAX
},
151 .p
= { .min
= I9XX_P_SDVO_DAC_MIN
, .max
= I9XX_P_SDVO_DAC_MAX
},
152 .p1
= { .min
= I9XX_P1_MIN
, .max
= I9XX_P1_MAX
},
153 .p2
= { .dot_limit
= I9XX_P2_SDVO_DAC_SLOW_LIMIT
,
154 .p2_slow
= I9XX_P2_SDVO_DAC_SLOW
, .p2_fast
= I9XX_P2_SDVO_DAC_FAST
},
156 { /* INTEL_LIMIT_I9XX_LVDS */
157 .dot
= { .min
= I9XX_DOT_MIN
, .max
= I9XX_DOT_MAX
},
158 .vco
= { .min
= I9XX_VCO_MIN
, .max
= I9XX_VCO_MAX
},
159 .n
= { .min
= I9XX_N_MIN
, .max
= I9XX_N_MAX
},
160 .m
= { .min
= I9XX_M_MIN
, .max
= I9XX_M_MAX
},
161 .m1
= { .min
= I9XX_M1_MIN
, .max
= I9XX_M1_MAX
},
162 .m2
= { .min
= I9XX_M2_MIN
, .max
= I9XX_M2_MAX
},
163 .p
= { .min
= I9XX_P_LVDS_MIN
, .max
= I9XX_P_LVDS_MAX
},
164 .p1
= { .min
= I9XX_P1_MIN
, .max
= I9XX_P1_MAX
},
165 /* The single-channel range is 25-112Mhz, and dual-channel
166 * is 80-224Mhz. Prefer single channel as much as possible.
168 .p2
= { .dot_limit
= I9XX_P2_LVDS_SLOW_LIMIT
,
169 .p2_slow
= I9XX_P2_LVDS_SLOW
, .p2_fast
= I9XX_P2_LVDS_FAST
},
173 static const intel_limit_t
*intel_limit(struct drm_crtc
*crtc
)
175 struct drm_device
*dev
= crtc
->dev
;
176 const intel_limit_t
*limit
;
179 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
180 limit
= &intel_limits
[INTEL_LIMIT_I9XX_LVDS
];
182 limit
= &intel_limits
[INTEL_LIMIT_I9XX_SDVO_DAC
];
184 if (intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
))
185 limit
= &intel_limits
[INTEL_LIMIT_I8XX_LVDS
];
187 limit
= &intel_limits
[INTEL_LIMIT_I8XX_DVO_DAC
];
192 /** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
194 static void i8xx_clock(int refclk
, intel_clock_t
*clock
)
196 clock
->m
= 5 * (clock
->m1
+ 2) + (clock
->m2
+ 2);
197 clock
->p
= clock
->p1
* clock
->p2
;
198 clock
->vco
= refclk
* clock
->m
/ (clock
->n
+ 2);
199 clock
->dot
= clock
->vco
/ clock
->p
;
202 /** Derive the pixel clock for the given refclk and divisors for 9xx chips. */
204 static void i9xx_clock(int refclk
, intel_clock_t
*clock
)
206 clock
->m
= 5 * (clock
->m1
+ 2) + (clock
->m2
+ 2);
207 clock
->p
= clock
->p1
* clock
->p2
;
208 clock
->vco
= refclk
* clock
->m
/ (clock
->n
+ 2);
209 clock
->dot
= clock
->vco
/ clock
->p
;
212 static void intel_clock(struct drm_device
*dev
, int refclk
,
213 intel_clock_t
*clock
)
216 i9xx_clock (refclk
, clock
);
218 i8xx_clock (refclk
, clock
);
222 * Returns whether any output on the specified pipe is of the specified type
224 bool intel_pipe_has_type (struct drm_crtc
*crtc
, int type
)
226 struct drm_device
*dev
= crtc
->dev
;
227 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
228 struct drm_connector
*l_entry
;
230 list_for_each_entry(l_entry
, &mode_config
->connector_list
, head
) {
231 if (l_entry
->encoder
&&
232 l_entry
->encoder
->crtc
== crtc
) {
233 struct intel_output
*intel_output
= to_intel_output(l_entry
);
234 if (intel_output
->type
== type
)
241 #define INTELPllInvalid(s) { /* ErrorF (s) */; return false; }
243 * Returns whether the given set of divisors are valid for a given refclk with
244 * the given connectors.
247 static bool intel_PLL_is_valid(struct drm_crtc
*crtc
, intel_clock_t
*clock
)
249 const intel_limit_t
*limit
= intel_limit (crtc
);
251 if (clock
->p1
< limit
->p1
.min
|| limit
->p1
.max
< clock
->p1
)
252 INTELPllInvalid ("p1 out of range\n");
253 if (clock
->p
< limit
->p
.min
|| limit
->p
.max
< clock
->p
)
254 INTELPllInvalid ("p out of range\n");
255 if (clock
->m2
< limit
->m2
.min
|| limit
->m2
.max
< clock
->m2
)
256 INTELPllInvalid ("m2 out of range\n");
257 if (clock
->m1
< limit
->m1
.min
|| limit
->m1
.max
< clock
->m1
)
258 INTELPllInvalid ("m1 out of range\n");
259 if (clock
->m1
<= clock
->m2
)
260 INTELPllInvalid ("m1 <= m2\n");
261 if (clock
->m
< limit
->m
.min
|| limit
->m
.max
< clock
->m
)
262 INTELPllInvalid ("m out of range\n");
263 if (clock
->n
< limit
->n
.min
|| limit
->n
.max
< clock
->n
)
264 INTELPllInvalid ("n out of range\n");
265 if (clock
->vco
< limit
->vco
.min
|| limit
->vco
.max
< clock
->vco
)
266 INTELPllInvalid ("vco out of range\n");
267 /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
268 * connector, etc., rather than just a single range.
270 if (clock
->dot
< limit
->dot
.min
|| limit
->dot
.max
< clock
->dot
)
271 INTELPllInvalid ("dot out of range\n");
277 * Returns a set of divisors for the desired target clock with the given
278 * refclk, or FALSE. The returned values represent the clock equation:
279 * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
281 static bool intel_find_best_PLL(struct drm_crtc
*crtc
, int target
,
282 int refclk
, intel_clock_t
*best_clock
)
284 struct drm_device
*dev
= crtc
->dev
;
285 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
287 const intel_limit_t
*limit
= intel_limit(crtc
);
290 if (IS_I9XX(dev
) && intel_pipe_has_type(crtc
, INTEL_OUTPUT_LVDS
) &&
291 (I915_READ(LVDS
) & LVDS_PORT_EN
) != 0) {
293 * For LVDS, if the panel is on, just rely on its current
294 * settings for dual-channel. We haven't figured out how to
295 * reliably set up different single/dual channel state, if we
298 if ((I915_READ(LVDS
) & LVDS_CLKB_POWER_MASK
) ==
300 clock
.p2
= limit
->p2
.p2_fast
;
302 clock
.p2
= limit
->p2
.p2_slow
;
304 if (target
< limit
->p2
.dot_limit
)
305 clock
.p2
= limit
->p2
.p2_slow
;
307 clock
.p2
= limit
->p2
.p2_fast
;
310 memset (best_clock
, 0, sizeof (*best_clock
));
312 for (clock
.m1
= limit
->m1
.min
; clock
.m1
<= limit
->m1
.max
; clock
.m1
++) {
313 for (clock
.m2
= limit
->m2
.min
; clock
.m2
< clock
.m1
&&
314 clock
.m2
<= limit
->m2
.max
; clock
.m2
++) {
315 for (clock
.n
= limit
->n
.min
; clock
.n
<= limit
->n
.max
;
317 for (clock
.p1
= limit
->p1
.min
;
318 clock
.p1
<= limit
->p1
.max
; clock
.p1
++) {
321 intel_clock(dev
, refclk
, &clock
);
323 if (!intel_PLL_is_valid(crtc
, &clock
))
326 this_err
= abs(clock
.dot
- target
);
327 if (this_err
< err
) {
336 return (err
!= target
);
340 intel_wait_for_vblank(struct drm_device
*dev
)
342 /* Wait for 20ms, i.e. one cycle at 50hz. */
347 intel_pipe_set_base(struct drm_crtc
*crtc
, int x
, int y
,
348 struct drm_framebuffer
*old_fb
)
350 struct drm_device
*dev
= crtc
->dev
;
351 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
352 struct drm_i915_master_private
*master_priv
;
353 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
354 struct intel_framebuffer
*intel_fb
;
355 struct drm_i915_gem_object
*obj_priv
;
356 struct drm_gem_object
*obj
;
357 int pipe
= intel_crtc
->pipe
;
358 unsigned long Start
, Offset
;
359 int dspbase
= (pipe
== 0 ? DSPAADDR
: DSPBADDR
);
360 int dspsurf
= (pipe
== 0 ? DSPASURF
: DSPBSURF
);
361 int dspstride
= (pipe
== 0) ? DSPASTRIDE
: DSPBSTRIDE
;
362 int dspcntr_reg
= (pipe
== 0) ? DSPACNTR
: DSPBCNTR
;
363 u32 dspcntr
, alignment
;
367 DRM_DEBUG("No FB bound\n");
371 intel_fb
= to_intel_framebuffer(crtc
->fb
);
373 obj_priv
= obj
->driver_private
;
375 switch (obj_priv
->tiling_mode
) {
376 case I915_TILING_NONE
:
377 alignment
= 64 * 1024;
381 alignment
= 1024 * 1024;
383 alignment
= 512 * 1024;
386 /* FIXME: Is this true? */
387 DRM_ERROR("Y tiled not allowed for scan out buffers\n");
393 if (i915_gem_object_pin(intel_fb
->obj
, alignment
))
396 i915_gem_object_set_to_gtt_domain(intel_fb
->obj
, 1);
398 Start
= obj_priv
->gtt_offset
;
399 Offset
= y
* crtc
->fb
->pitch
+ x
* (crtc
->fb
->bits_per_pixel
/ 8);
401 I915_WRITE(dspstride
, crtc
->fb
->pitch
);
403 dspcntr
= I915_READ(dspcntr_reg
);
404 switch (crtc
->fb
->bits_per_pixel
) {
406 dspcntr
|= DISPPLANE_8BPP
;
409 if (crtc
->fb
->depth
== 15)
410 dspcntr
|= DISPPLANE_15_16BPP
;
412 dspcntr
|= DISPPLANE_16BPP
;
416 dspcntr
|= DISPPLANE_32BPP_NO_ALPHA
;
419 DRM_ERROR("Unknown color depth\n");
422 I915_WRITE(dspcntr_reg
, dspcntr
);
424 DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start
, Offset
, x
, y
);
426 I915_WRITE(dspbase
, Offset
);
428 I915_WRITE(dspsurf
, Start
);
431 I915_WRITE(dspbase
, Start
+ Offset
);
435 intel_wait_for_vblank(dev
);
438 intel_fb
= to_intel_framebuffer(old_fb
);
439 i915_gem_object_unpin(intel_fb
->obj
);
442 if (!dev
->primary
->master
)
445 master_priv
= dev
->primary
->master
->driver_priv
;
446 if (!master_priv
->sarea_priv
)
451 master_priv
->sarea_priv
->pipeA_x
= x
;
452 master_priv
->sarea_priv
->pipeA_y
= y
;
455 master_priv
->sarea_priv
->pipeB_x
= x
;
456 master_priv
->sarea_priv
->pipeB_y
= y
;
459 DRM_ERROR("Can't update pipe %d in SAREA\n", pipe
);
467 * Sets the power management mode of the pipe and plane.
469 * This code should probably grow support for turning the cursor off and back
470 * on appropriately at the same time as we're turning the pipe off/on.
472 static void intel_crtc_dpms(struct drm_crtc
*crtc
, int mode
)
474 struct drm_device
*dev
= crtc
->dev
;
475 struct drm_i915_master_private
*master_priv
;
476 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
477 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
478 int pipe
= intel_crtc
->pipe
;
479 int dpll_reg
= (pipe
== 0) ? DPLL_A
: DPLL_B
;
480 int dspcntr_reg
= (pipe
== 0) ? DSPACNTR
: DSPBCNTR
;
481 int dspbase_reg
= (pipe
== 0) ? DSPAADDR
: DSPBADDR
;
482 int pipeconf_reg
= (pipe
== 0) ? PIPEACONF
: PIPEBCONF
;
486 /* XXX: When our outputs are all unaware of DPMS modes other than off
487 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
490 case DRM_MODE_DPMS_ON
:
491 case DRM_MODE_DPMS_STANDBY
:
492 case DRM_MODE_DPMS_SUSPEND
:
493 /* Enable the DPLL */
494 temp
= I915_READ(dpll_reg
);
495 if ((temp
& DPLL_VCO_ENABLE
) == 0) {
496 I915_WRITE(dpll_reg
, temp
);
498 /* Wait for the clocks to stabilize. */
500 I915_WRITE(dpll_reg
, temp
| DPLL_VCO_ENABLE
);
502 /* Wait for the clocks to stabilize. */
504 I915_WRITE(dpll_reg
, temp
| DPLL_VCO_ENABLE
);
506 /* Wait for the clocks to stabilize. */
510 /* Enable the pipe */
511 temp
= I915_READ(pipeconf_reg
);
512 if ((temp
& PIPEACONF_ENABLE
) == 0)
513 I915_WRITE(pipeconf_reg
, temp
| PIPEACONF_ENABLE
);
515 /* Enable the plane */
516 temp
= I915_READ(dspcntr_reg
);
517 if ((temp
& DISPLAY_PLANE_ENABLE
) == 0) {
518 I915_WRITE(dspcntr_reg
, temp
| DISPLAY_PLANE_ENABLE
);
519 /* Flush the plane changes */
520 I915_WRITE(dspbase_reg
, I915_READ(dspbase_reg
));
523 intel_crtc_load_lut(crtc
);
525 /* Give the overlay scaler a chance to enable if it's on this pipe */
526 //intel_crtc_dpms_video(crtc, true); TODO
528 case DRM_MODE_DPMS_OFF
:
529 /* Give the overlay scaler a chance to disable if it's on this pipe */
530 //intel_crtc_dpms_video(crtc, FALSE); TODO
532 /* Disable the VGA plane that we never use */
533 I915_WRITE(VGACNTRL
, VGA_DISP_DISABLE
);
535 /* Disable display plane */
536 temp
= I915_READ(dspcntr_reg
);
537 if ((temp
& DISPLAY_PLANE_ENABLE
) != 0) {
538 I915_WRITE(dspcntr_reg
, temp
& ~DISPLAY_PLANE_ENABLE
);
539 /* Flush the plane changes */
540 I915_WRITE(dspbase_reg
, I915_READ(dspbase_reg
));
541 I915_READ(dspbase_reg
);
545 /* Wait for vblank for the disable to take effect */
546 intel_wait_for_vblank(dev
);
549 /* Next, disable display pipes */
550 temp
= I915_READ(pipeconf_reg
);
551 if ((temp
& PIPEACONF_ENABLE
) != 0) {
552 I915_WRITE(pipeconf_reg
, temp
& ~PIPEACONF_ENABLE
);
553 I915_READ(pipeconf_reg
);
556 /* Wait for vblank for the disable to take effect. */
557 intel_wait_for_vblank(dev
);
559 temp
= I915_READ(dpll_reg
);
560 if ((temp
& DPLL_VCO_ENABLE
) != 0) {
561 I915_WRITE(dpll_reg
, temp
& ~DPLL_VCO_ENABLE
);
565 /* Wait for the clocks to turn off. */
570 if (!dev
->primary
->master
)
573 master_priv
= dev
->primary
->master
->driver_priv
;
574 if (!master_priv
->sarea_priv
)
577 enabled
= crtc
->enabled
&& mode
!= DRM_MODE_DPMS_OFF
;
581 master_priv
->sarea_priv
->pipeA_w
= enabled
? crtc
->mode
.hdisplay
: 0;
582 master_priv
->sarea_priv
->pipeA_h
= enabled
? crtc
->mode
.vdisplay
: 0;
585 master_priv
->sarea_priv
->pipeB_w
= enabled
? crtc
->mode
.hdisplay
: 0;
586 master_priv
->sarea_priv
->pipeB_h
= enabled
? crtc
->mode
.vdisplay
: 0;
589 DRM_ERROR("Can't update pipe %d in SAREA\n", pipe
);
593 intel_crtc
->dpms_mode
= mode
;
596 static void intel_crtc_prepare (struct drm_crtc
*crtc
)
598 struct drm_crtc_helper_funcs
*crtc_funcs
= crtc
->helper_private
;
599 crtc_funcs
->dpms(crtc
, DRM_MODE_DPMS_OFF
);
602 static void intel_crtc_commit (struct drm_crtc
*crtc
)
604 struct drm_crtc_helper_funcs
*crtc_funcs
= crtc
->helper_private
;
605 crtc_funcs
->dpms(crtc
, DRM_MODE_DPMS_ON
);
608 void intel_encoder_prepare (struct drm_encoder
*encoder
)
610 struct drm_encoder_helper_funcs
*encoder_funcs
= encoder
->helper_private
;
611 /* lvds has its own version of prepare see intel_lvds_prepare */
612 encoder_funcs
->dpms(encoder
, DRM_MODE_DPMS_OFF
);
615 void intel_encoder_commit (struct drm_encoder
*encoder
)
617 struct drm_encoder_helper_funcs
*encoder_funcs
= encoder
->helper_private
;
618 /* lvds has its own version of commit see intel_lvds_commit */
619 encoder_funcs
->dpms(encoder
, DRM_MODE_DPMS_ON
);
622 static bool intel_crtc_mode_fixup(struct drm_crtc
*crtc
,
623 struct drm_display_mode
*mode
,
624 struct drm_display_mode
*adjusted_mode
)
630 /** Returns the core display clock speed for i830 - i945 */
631 static int intel_get_core_clock_speed(struct drm_device
*dev
)
634 /* Core clock values taken from the published datasheets.
635 * The 830 may go up to 166 Mhz, which we should check.
639 else if (IS_I915G(dev
))
641 else if (IS_I945GM(dev
) || IS_845G(dev
))
643 else if (IS_I915GM(dev
)) {
646 pci_read_config_word(dev
->pdev
, GCFGC
, &gcfgc
);
648 if (gcfgc
& GC_LOW_FREQUENCY_ENABLE
)
651 switch (gcfgc
& GC_DISPLAY_CLOCK_MASK
) {
652 case GC_DISPLAY_CLOCK_333_MHZ
:
655 case GC_DISPLAY_CLOCK_190_200_MHZ
:
659 } else if (IS_I865G(dev
))
661 else if (IS_I855(dev
)) {
663 /* Assume that the hardware is in the high speed state. This
664 * should be the default.
666 switch (hpllcc
& GC_CLOCK_CONTROL_MASK
) {
667 case GC_CLOCK_133_200
:
668 case GC_CLOCK_100_200
:
670 case GC_CLOCK_166_250
:
672 case GC_CLOCK_100_133
:
675 } else /* 852, 830 */
678 return 0; /* Silence gcc warning */
683 * Return the pipe currently connected to the panel fitter,
684 * or -1 if the panel fitter is not present or not in use
686 static int intel_panel_fitter_pipe (struct drm_device
*dev
)
688 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
691 /* i830 doesn't have a panel fitter */
695 pfit_control
= I915_READ(PFIT_CONTROL
);
697 /* See if the panel fitter is in use */
698 if ((pfit_control
& PFIT_ENABLE
) == 0)
701 /* 965 can place panel fitter on either pipe */
703 return (pfit_control
>> 29) & 0x3;
705 /* older chips can only use pipe 1 */
709 static void intel_crtc_mode_set(struct drm_crtc
*crtc
,
710 struct drm_display_mode
*mode
,
711 struct drm_display_mode
*adjusted_mode
,
713 struct drm_framebuffer
*old_fb
)
715 struct drm_device
*dev
= crtc
->dev
;
716 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
717 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
718 int pipe
= intel_crtc
->pipe
;
719 int fp_reg
= (pipe
== 0) ? FPA0
: FPB0
;
720 int dpll_reg
= (pipe
== 0) ? DPLL_A
: DPLL_B
;
721 int dpll_md_reg
= (intel_crtc
->pipe
== 0) ? DPLL_A_MD
: DPLL_B_MD
;
722 int dspcntr_reg
= (pipe
== 0) ? DSPACNTR
: DSPBCNTR
;
723 int pipeconf_reg
= (pipe
== 0) ? PIPEACONF
: PIPEBCONF
;
724 int htot_reg
= (pipe
== 0) ? HTOTAL_A
: HTOTAL_B
;
725 int hblank_reg
= (pipe
== 0) ? HBLANK_A
: HBLANK_B
;
726 int hsync_reg
= (pipe
== 0) ? HSYNC_A
: HSYNC_B
;
727 int vtot_reg
= (pipe
== 0) ? VTOTAL_A
: VTOTAL_B
;
728 int vblank_reg
= (pipe
== 0) ? VBLANK_A
: VBLANK_B
;
729 int vsync_reg
= (pipe
== 0) ? VSYNC_A
: VSYNC_B
;
730 int dspsize_reg
= (pipe
== 0) ? DSPASIZE
: DSPBSIZE
;
731 int dsppos_reg
= (pipe
== 0) ? DSPAPOS
: DSPBPOS
;
732 int pipesrc_reg
= (pipe
== 0) ? PIPEASRC
: PIPEBSRC
;
735 u32 dpll
= 0, fp
= 0, dspcntr
, pipeconf
;
736 bool ok
, is_sdvo
= false, is_dvo
= false;
737 bool is_crt
= false, is_lvds
= false, is_tv
= false;
738 struct drm_mode_config
*mode_config
= &dev
->mode_config
;
739 struct drm_connector
*connector
;
741 drm_vblank_pre_modeset(dev
, pipe
);
743 list_for_each_entry(connector
, &mode_config
->connector_list
, head
) {
744 struct intel_output
*intel_output
= to_intel_output(connector
);
746 if (!connector
->encoder
|| connector
->encoder
->crtc
!= crtc
)
749 switch (intel_output
->type
) {
750 case INTEL_OUTPUT_LVDS
:
753 case INTEL_OUTPUT_SDVO
:
754 case INTEL_OUTPUT_HDMI
:
757 case INTEL_OUTPUT_DVO
:
760 case INTEL_OUTPUT_TVOUT
:
763 case INTEL_OUTPUT_ANALOG
:
775 ok
= intel_find_best_PLL(crtc
, adjusted_mode
->clock
, refclk
, &clock
);
777 DRM_ERROR("Couldn't find PLL settings for mode!\n");
781 fp
= clock
.n
<< 16 | clock
.m1
<< 8 | clock
.m2
;
783 dpll
= DPLL_VGA_MODE_DIS
;
786 dpll
|= DPLLB_MODE_LVDS
;
788 dpll
|= DPLLB_MODE_DAC_SERIAL
;
790 dpll
|= DPLL_DVO_HIGH_SPEED
;
791 if (IS_I945G(dev
) || IS_I945GM(dev
)) {
792 int sdvo_pixel_multiply
= adjusted_mode
->clock
/ mode
->clock
;
793 dpll
|= (sdvo_pixel_multiply
- 1) << SDVO_MULTIPLIER_SHIFT_HIRES
;
797 /* compute bitmask from p1 value */
798 dpll
|= (1 << (clock
.p1
- 1)) << 16;
801 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
;
804 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_7
;
807 dpll
|= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10
;
810 dpll
|= DPLLB_LVDS_P2_CLOCK_DIV_14
;
814 dpll
|= (6 << PLL_LOAD_PULSE_PHASE_SHIFT
);
817 dpll
|= (1 << (clock
.p1
- 1)) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
820 dpll
|= PLL_P1_DIVIDE_BY_TWO
;
822 dpll
|= (clock
.p1
- 2) << DPLL_FPA01_P1_POST_DIV_SHIFT
;
824 dpll
|= PLL_P2_DIVIDE_BY_4
;
829 /* XXX: just matching BIOS for now */
830 /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
834 dpll
|= PLL_REF_INPUT_DREFCLK
;
837 pipeconf
= I915_READ(pipeconf_reg
);
839 /* Set up the display plane register */
840 dspcntr
= DISPPLANE_GAMMA_ENABLE
;
843 dspcntr
|= DISPPLANE_SEL_PIPE_A
;
845 dspcntr
|= DISPPLANE_SEL_PIPE_B
;
847 if (pipe
== 0 && !IS_I965G(dev
)) {
848 /* Enable pixel doubling when the dot clock is > 90% of the (display)
851 * XXX: No double-wide on 915GM pipe B. Is that the only reason for the
854 if (mode
->clock
> intel_get_core_clock_speed(dev
) * 9 / 10)
855 pipeconf
|= PIPEACONF_DOUBLE_WIDE
;
857 pipeconf
&= ~PIPEACONF_DOUBLE_WIDE
;
860 dspcntr
|= DISPLAY_PLANE_ENABLE
;
861 pipeconf
|= PIPEACONF_ENABLE
;
862 dpll
|= DPLL_VCO_ENABLE
;
865 /* Disable the panel fitter if it was on our pipe */
866 if (intel_panel_fitter_pipe(dev
) == pipe
)
867 I915_WRITE(PFIT_CONTROL
, 0);
869 DRM_DEBUG("Mode for pipe %c:\n", pipe
== 0 ? 'A' : 'B');
870 drm_mode_debug_printmodeline(mode
);
873 if (dpll
& DPLL_VCO_ENABLE
) {
874 I915_WRITE(fp_reg
, fp
);
875 I915_WRITE(dpll_reg
, dpll
& ~DPLL_VCO_ENABLE
);
880 /* The LVDS pin pair needs to be on before the DPLLs are enabled.
881 * This is an exception to the general rule that mode_set doesn't turn
885 u32 lvds
= I915_READ(LVDS
);
887 lvds
|= LVDS_PORT_EN
| LVDS_A0A2_CLKA_POWER_UP
| LVDS_PIPEB_SELECT
;
888 /* Set the B0-B3 data pairs corresponding to whether we're going to
889 * set the DPLLs for dual-channel mode or not.
892 lvds
|= LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
;
894 lvds
&= ~(LVDS_B0B3_POWER_UP
| LVDS_CLKB_POWER_UP
);
896 /* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
897 * appropriately here, but we need to look more thoroughly into how
898 * panels behave in the two modes.
901 I915_WRITE(LVDS
, lvds
);
905 I915_WRITE(fp_reg
, fp
);
906 I915_WRITE(dpll_reg
, dpll
);
908 /* Wait for the clocks to stabilize. */
912 int sdvo_pixel_multiply
= adjusted_mode
->clock
/ mode
->clock
;
913 I915_WRITE(dpll_md_reg
, (0 << DPLL_MD_UDI_DIVIDER_SHIFT
) |
914 ((sdvo_pixel_multiply
- 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT
));
916 /* write it again -- the BIOS does, after all */
917 I915_WRITE(dpll_reg
, dpll
);
920 /* Wait for the clocks to stabilize. */
923 I915_WRITE(htot_reg
, (adjusted_mode
->crtc_hdisplay
- 1) |
924 ((adjusted_mode
->crtc_htotal
- 1) << 16));
925 I915_WRITE(hblank_reg
, (adjusted_mode
->crtc_hblank_start
- 1) |
926 ((adjusted_mode
->crtc_hblank_end
- 1) << 16));
927 I915_WRITE(hsync_reg
, (adjusted_mode
->crtc_hsync_start
- 1) |
928 ((adjusted_mode
->crtc_hsync_end
- 1) << 16));
929 I915_WRITE(vtot_reg
, (adjusted_mode
->crtc_vdisplay
- 1) |
930 ((adjusted_mode
->crtc_vtotal
- 1) << 16));
931 I915_WRITE(vblank_reg
, (adjusted_mode
->crtc_vblank_start
- 1) |
932 ((adjusted_mode
->crtc_vblank_end
- 1) << 16));
933 I915_WRITE(vsync_reg
, (adjusted_mode
->crtc_vsync_start
- 1) |
934 ((adjusted_mode
->crtc_vsync_end
- 1) << 16));
935 /* pipesrc and dspsize control the size that is scaled from, which should
936 * always be the user's requested size.
938 I915_WRITE(dspsize_reg
, ((mode
->vdisplay
- 1) << 16) | (mode
->hdisplay
- 1));
939 I915_WRITE(dsppos_reg
, 0);
940 I915_WRITE(pipesrc_reg
, ((mode
->hdisplay
- 1) << 16) | (mode
->vdisplay
- 1));
941 I915_WRITE(pipeconf_reg
, pipeconf
);
942 I915_READ(pipeconf_reg
);
944 intel_wait_for_vblank(dev
);
946 I915_WRITE(dspcntr_reg
, dspcntr
);
948 /* Flush the plane changes */
949 intel_pipe_set_base(crtc
, x
, y
, old_fb
);
951 drm_vblank_post_modeset(dev
, pipe
);
954 /** Loads the palette/gamma unit for the CRTC with the prepared values */
955 void intel_crtc_load_lut(struct drm_crtc
*crtc
)
957 struct drm_device
*dev
= crtc
->dev
;
958 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
959 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
960 int palreg
= (intel_crtc
->pipe
== 0) ? PALETTE_A
: PALETTE_B
;
963 /* The clocks have to be on to load the palette. */
967 for (i
= 0; i
< 256; i
++) {
968 I915_WRITE(palreg
+ 4 * i
,
969 (intel_crtc
->lut_r
[i
] << 16) |
970 (intel_crtc
->lut_g
[i
] << 8) |
971 intel_crtc
->lut_b
[i
]);
975 static int intel_crtc_cursor_set(struct drm_crtc
*crtc
,
976 struct drm_file
*file_priv
,
978 uint32_t width
, uint32_t height
)
980 struct drm_device
*dev
= crtc
->dev
;
981 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
982 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
983 struct drm_gem_object
*bo
;
984 struct drm_i915_gem_object
*obj_priv
;
985 int pipe
= intel_crtc
->pipe
;
986 uint32_t control
= (pipe
== 0) ? CURACNTR
: CURBCNTR
;
987 uint32_t base
= (pipe
== 0) ? CURABASE
: CURBBASE
;
994 /* if we want to turn off the cursor ignore width and height */
996 DRM_DEBUG("cursor off\n");
997 temp
= CURSOR_MODE_DISABLE
;
1003 /* Currently we only support 64x64 cursors */
1004 if (width
!= 64 || height
!= 64) {
1005 DRM_ERROR("we currently only support 64x64 cursors\n");
1009 bo
= drm_gem_object_lookup(dev
, file_priv
, handle
);
1013 obj_priv
= bo
->driver_private
;
1015 if (bo
->size
< width
* height
* 4) {
1016 DRM_ERROR("buffer is to small\n");
1017 drm_gem_object_unreference(bo
);
1021 if (dev_priv
->cursor_needs_physical
) {
1022 addr
= dev
->agp
->base
+ obj_priv
->gtt_offset
;
1024 addr
= obj_priv
->gtt_offset
;
1027 ret
= i915_gem_object_pin(bo
, PAGE_SIZE
);
1029 DRM_ERROR("failed to pin cursor bo\n");
1030 drm_gem_object_unreference(bo
);
1035 /* set the pipe for the cursor */
1036 temp
|= (pipe
<< 28);
1037 temp
|= CURSOR_MODE_64_ARGB_AX
| MCURSOR_GAMMA_ENABLE
;
1040 I915_WRITE(control
, temp
);
1041 I915_WRITE(base
, addr
);
1043 if (intel_crtc
->cursor_bo
) {
1044 i915_gem_object_unpin(intel_crtc
->cursor_bo
);
1045 drm_gem_object_unreference(intel_crtc
->cursor_bo
);
1048 intel_crtc
->cursor_addr
= addr
;
1049 intel_crtc
->cursor_bo
= bo
;
1054 static int intel_crtc_cursor_move(struct drm_crtc
*crtc
, int x
, int y
)
1056 struct drm_device
*dev
= crtc
->dev
;
1057 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1058 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1059 int pipe
= intel_crtc
->pipe
;
1064 temp
|= (CURSOR_POS_SIGN
<< CURSOR_X_SHIFT
);
1068 temp
|= (CURSOR_POS_SIGN
<< CURSOR_Y_SHIFT
);
1072 temp
|= ((x
& CURSOR_POS_MASK
) << CURSOR_X_SHIFT
);
1073 temp
|= ((y
& CURSOR_POS_MASK
) << CURSOR_Y_SHIFT
);
1075 adder
= intel_crtc
->cursor_addr
;
1076 I915_WRITE((pipe
== 0) ? CURAPOS
: CURBPOS
, temp
);
1077 I915_WRITE((pipe
== 0) ? CURABASE
: CURBBASE
, adder
);
1082 /** Sets the color ramps on behalf of RandR */
1083 void intel_crtc_fb_gamma_set(struct drm_crtc
*crtc
, u16 red
, u16 green
,
1084 u16 blue
, int regno
)
1086 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1088 intel_crtc
->lut_r
[regno
] = red
>> 8;
1089 intel_crtc
->lut_g
[regno
] = green
>> 8;
1090 intel_crtc
->lut_b
[regno
] = blue
>> 8;
1093 static void intel_crtc_gamma_set(struct drm_crtc
*crtc
, u16
*red
, u16
*green
,
1094 u16
*blue
, uint32_t size
)
1096 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1102 for (i
= 0; i
< 256; i
++) {
1103 intel_crtc
->lut_r
[i
] = red
[i
] >> 8;
1104 intel_crtc
->lut_g
[i
] = green
[i
] >> 8;
1105 intel_crtc
->lut_b
[i
] = blue
[i
] >> 8;
1108 intel_crtc_load_lut(crtc
);
1112 * Get a pipe with a simple mode set on it for doing load-based monitor
1115 * It will be up to the load-detect code to adjust the pipe as appropriate for
1116 * its requirements. The pipe will be connected to no other outputs.
1118 * Currently this code will only succeed if there is a pipe with no outputs
1119 * configured for it. In the future, it could choose to temporarily disable
1120 * some outputs to free up a pipe for its use.
1122 * \return crtc, or NULL if no pipes are available.
1125 /* VESA 640x480x72Hz mode to set on the pipe */
1126 static struct drm_display_mode load_detect_mode
= {
1127 DRM_MODE("640x480", DRM_MODE_TYPE_DEFAULT
, 31500, 640, 664,
1128 704, 832, 0, 480, 489, 491, 520, 0, DRM_MODE_FLAG_NHSYNC
| DRM_MODE_FLAG_NVSYNC
),
1131 struct drm_crtc
*intel_get_load_detect_pipe(struct intel_output
*intel_output
,
1132 struct drm_display_mode
*mode
,
1135 struct intel_crtc
*intel_crtc
;
1136 struct drm_crtc
*possible_crtc
;
1137 struct drm_crtc
*supported_crtc
=NULL
;
1138 struct drm_encoder
*encoder
= &intel_output
->enc
;
1139 struct drm_crtc
*crtc
= NULL
;
1140 struct drm_device
*dev
= encoder
->dev
;
1141 struct drm_encoder_helper_funcs
*encoder_funcs
= encoder
->helper_private
;
1142 struct drm_crtc_helper_funcs
*crtc_funcs
;
1146 * Algorithm gets a little messy:
1147 * - if the connector already has an assigned crtc, use it (but make
1148 * sure it's on first)
1149 * - try to find the first unused crtc that can drive this connector,
1150 * and use that if we find one
1151 * - if there are no unused crtcs available, try to use the first
1152 * one we found that supports the connector
1155 /* See if we already have a CRTC for this connector */
1156 if (encoder
->crtc
) {
1157 crtc
= encoder
->crtc
;
1158 /* Make sure the crtc and connector are running */
1159 intel_crtc
= to_intel_crtc(crtc
);
1160 *dpms_mode
= intel_crtc
->dpms_mode
;
1161 if (intel_crtc
->dpms_mode
!= DRM_MODE_DPMS_ON
) {
1162 crtc_funcs
= crtc
->helper_private
;
1163 crtc_funcs
->dpms(crtc
, DRM_MODE_DPMS_ON
);
1164 encoder_funcs
->dpms(encoder
, DRM_MODE_DPMS_ON
);
1169 /* Find an unused one (if possible) */
1170 list_for_each_entry(possible_crtc
, &dev
->mode_config
.crtc_list
, head
) {
1172 if (!(encoder
->possible_crtcs
& (1 << i
)))
1174 if (!possible_crtc
->enabled
) {
1175 crtc
= possible_crtc
;
1178 if (!supported_crtc
)
1179 supported_crtc
= possible_crtc
;
1183 * If we didn't find an unused CRTC, don't use any.
1189 encoder
->crtc
= crtc
;
1190 intel_output
->load_detect_temp
= true;
1192 intel_crtc
= to_intel_crtc(crtc
);
1193 *dpms_mode
= intel_crtc
->dpms_mode
;
1195 if (!crtc
->enabled
) {
1197 mode
= &load_detect_mode
;
1198 drm_crtc_helper_set_mode(crtc
, mode
, 0, 0, crtc
->fb
);
1200 if (intel_crtc
->dpms_mode
!= DRM_MODE_DPMS_ON
) {
1201 crtc_funcs
= crtc
->helper_private
;
1202 crtc_funcs
->dpms(crtc
, DRM_MODE_DPMS_ON
);
1205 /* Add this connector to the crtc */
1206 encoder_funcs
->mode_set(encoder
, &crtc
->mode
, &crtc
->mode
);
1207 encoder_funcs
->commit(encoder
);
1209 /* let the connector get through one full cycle before testing */
1210 intel_wait_for_vblank(dev
);
1215 void intel_release_load_detect_pipe(struct intel_output
*intel_output
, int dpms_mode
)
1217 struct drm_encoder
*encoder
= &intel_output
->enc
;
1218 struct drm_device
*dev
= encoder
->dev
;
1219 struct drm_crtc
*crtc
= encoder
->crtc
;
1220 struct drm_encoder_helper_funcs
*encoder_funcs
= encoder
->helper_private
;
1221 struct drm_crtc_helper_funcs
*crtc_funcs
= crtc
->helper_private
;
1223 if (intel_output
->load_detect_temp
) {
1224 encoder
->crtc
= NULL
;
1225 intel_output
->load_detect_temp
= false;
1226 crtc
->enabled
= drm_helper_crtc_in_use(crtc
);
1227 drm_helper_disable_unused_functions(dev
);
1230 /* Switch crtc and output back off if necessary */
1231 if (crtc
->enabled
&& dpms_mode
!= DRM_MODE_DPMS_ON
) {
1232 if (encoder
->crtc
== crtc
)
1233 encoder_funcs
->dpms(encoder
, dpms_mode
);
1234 crtc_funcs
->dpms(crtc
, dpms_mode
);
1238 /* Returns the clock of the currently programmed mode of the given pipe. */
1239 static int intel_crtc_clock_get(struct drm_device
*dev
, struct drm_crtc
*crtc
)
1241 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1242 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1243 int pipe
= intel_crtc
->pipe
;
1244 u32 dpll
= I915_READ((pipe
== 0) ? DPLL_A
: DPLL_B
);
1246 intel_clock_t clock
;
1248 if ((dpll
& DISPLAY_RATE_SELECT_FPA1
) == 0)
1249 fp
= I915_READ((pipe
== 0) ? FPA0
: FPB0
);
1251 fp
= I915_READ((pipe
== 0) ? FPA1
: FPB1
);
1253 clock
.m1
= (fp
& FP_M1_DIV_MASK
) >> FP_M1_DIV_SHIFT
;
1254 clock
.m2
= (fp
& FP_M2_DIV_MASK
) >> FP_M2_DIV_SHIFT
;
1255 clock
.n
= (fp
& FP_N_DIV_MASK
) >> FP_N_DIV_SHIFT
;
1257 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK
) >>
1258 DPLL_FPA01_P1_POST_DIV_SHIFT
);
1260 switch (dpll
& DPLL_MODE_MASK
) {
1261 case DPLLB_MODE_DAC_SERIAL
:
1262 clock
.p2
= dpll
& DPLL_DAC_SERIAL_P2_CLOCK_DIV_5
?
1265 case DPLLB_MODE_LVDS
:
1266 clock
.p2
= dpll
& DPLLB_LVDS_P2_CLOCK_DIV_7
?
1270 DRM_DEBUG("Unknown DPLL mode %08x in programmed "
1271 "mode\n", (int)(dpll
& DPLL_MODE_MASK
));
1275 /* XXX: Handle the 100Mhz refclk */
1276 i9xx_clock(96000, &clock
);
1278 bool is_lvds
= (pipe
== 1) && (I915_READ(LVDS
) & LVDS_PORT_EN
);
1281 clock
.p1
= ffs((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS
) >>
1282 DPLL_FPA01_P1_POST_DIV_SHIFT
);
1285 if ((dpll
& PLL_REF_INPUT_MASK
) ==
1286 PLLB_REF_INPUT_SPREADSPECTRUMIN
) {
1287 /* XXX: might not be 66MHz */
1288 i8xx_clock(66000, &clock
);
1290 i8xx_clock(48000, &clock
);
1292 if (dpll
& PLL_P1_DIVIDE_BY_TWO
)
1295 clock
.p1
= ((dpll
& DPLL_FPA01_P1_POST_DIV_MASK_I830
) >>
1296 DPLL_FPA01_P1_POST_DIV_SHIFT
) + 2;
1298 if (dpll
& PLL_P2_DIVIDE_BY_4
)
1303 i8xx_clock(48000, &clock
);
1307 /* XXX: It would be nice to validate the clocks, but we can't reuse
1308 * i830PllIsValid() because it relies on the xf86_config connector
1309 * configuration being accurate, which it isn't necessarily.
1315 /** Returns the currently programmed mode of the given pipe. */
1316 struct drm_display_mode
*intel_crtc_mode_get(struct drm_device
*dev
,
1317 struct drm_crtc
*crtc
)
1319 struct drm_i915_private
*dev_priv
= dev
->dev_private
;
1320 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1321 int pipe
= intel_crtc
->pipe
;
1322 struct drm_display_mode
*mode
;
1323 int htot
= I915_READ((pipe
== 0) ? HTOTAL_A
: HTOTAL_B
);
1324 int hsync
= I915_READ((pipe
== 0) ? HSYNC_A
: HSYNC_B
);
1325 int vtot
= I915_READ((pipe
== 0) ? VTOTAL_A
: VTOTAL_B
);
1326 int vsync
= I915_READ((pipe
== 0) ? VSYNC_A
: VSYNC_B
);
1328 mode
= kzalloc(sizeof(*mode
), GFP_KERNEL
);
1332 mode
->clock
= intel_crtc_clock_get(dev
, crtc
);
1333 mode
->hdisplay
= (htot
& 0xffff) + 1;
1334 mode
->htotal
= ((htot
& 0xffff0000) >> 16) + 1;
1335 mode
->hsync_start
= (hsync
& 0xffff) + 1;
1336 mode
->hsync_end
= ((hsync
& 0xffff0000) >> 16) + 1;
1337 mode
->vdisplay
= (vtot
& 0xffff) + 1;
1338 mode
->vtotal
= ((vtot
& 0xffff0000) >> 16) + 1;
1339 mode
->vsync_start
= (vsync
& 0xffff) + 1;
1340 mode
->vsync_end
= ((vsync
& 0xffff0000) >> 16) + 1;
1342 drm_mode_set_name(mode
);
1343 drm_mode_set_crtcinfo(mode
, 0);
1348 static void intel_crtc_destroy(struct drm_crtc
*crtc
)
1350 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1352 drm_crtc_cleanup(crtc
);
1356 static const struct drm_crtc_helper_funcs intel_helper_funcs
= {
1357 .dpms
= intel_crtc_dpms
,
1358 .mode_fixup
= intel_crtc_mode_fixup
,
1359 .mode_set
= intel_crtc_mode_set
,
1360 .mode_set_base
= intel_pipe_set_base
,
1361 .prepare
= intel_crtc_prepare
,
1362 .commit
= intel_crtc_commit
,
1365 static const struct drm_crtc_funcs intel_crtc_funcs
= {
1366 .cursor_set
= intel_crtc_cursor_set
,
1367 .cursor_move
= intel_crtc_cursor_move
,
1368 .gamma_set
= intel_crtc_gamma_set
,
1369 .set_config
= drm_crtc_helper_set_config
,
1370 .destroy
= intel_crtc_destroy
,
1374 static void intel_crtc_init(struct drm_device
*dev
, int pipe
)
1376 struct intel_crtc
*intel_crtc
;
1379 intel_crtc
= kzalloc(sizeof(struct intel_crtc
) + (INTELFB_CONN_LIMIT
* sizeof(struct drm_connector
*)), GFP_KERNEL
);
1380 if (intel_crtc
== NULL
)
1383 drm_crtc_init(dev
, &intel_crtc
->base
, &intel_crtc_funcs
);
1385 drm_mode_crtc_set_gamma_size(&intel_crtc
->base
, 256);
1386 intel_crtc
->pipe
= pipe
;
1387 for (i
= 0; i
< 256; i
++) {
1388 intel_crtc
->lut_r
[i
] = i
;
1389 intel_crtc
->lut_g
[i
] = i
;
1390 intel_crtc
->lut_b
[i
] = i
;
1393 intel_crtc
->cursor_addr
= 0;
1394 intel_crtc
->dpms_mode
= DRM_MODE_DPMS_OFF
;
1395 drm_crtc_helper_add(&intel_crtc
->base
, &intel_helper_funcs
);
1397 intel_crtc
->mode_set
.crtc
= &intel_crtc
->base
;
1398 intel_crtc
->mode_set
.connectors
= (struct drm_connector
**)(intel_crtc
+ 1);
1399 intel_crtc
->mode_set
.num_connectors
= 0;
1401 if (i915_fbpercrtc
) {
1408 struct drm_crtc
*intel_get_crtc_from_pipe(struct drm_device
*dev
, int pipe
)
1410 struct drm_crtc
*crtc
= NULL
;
1412 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
1413 struct intel_crtc
*intel_crtc
= to_intel_crtc(crtc
);
1414 if (intel_crtc
->pipe
== pipe
)
1420 static int intel_connector_clones(struct drm_device
*dev
, int type_mask
)
1423 struct drm_connector
*connector
;
1426 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1427 struct intel_output
*intel_output
= to_intel_output(connector
);
1428 if (type_mask
& (1 << intel_output
->type
))
1429 index_mask
|= (1 << entry
);
1436 static void intel_setup_outputs(struct drm_device
*dev
)
1438 struct drm_connector
*connector
;
1440 intel_crt_init(dev
);
1442 /* Set up integrated LVDS */
1443 if (IS_MOBILE(dev
) && !IS_I830(dev
))
1444 intel_lvds_init(dev
);
1449 found
= intel_sdvo_init(dev
, SDVOB
);
1450 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
))
1451 intel_hdmi_init(dev
, SDVOB
);
1453 found
= intel_sdvo_init(dev
, SDVOC
);
1454 if (!found
&& SUPPORTS_INTEGRATED_HDMI(dev
))
1455 intel_hdmi_init(dev
, SDVOC
);
1457 intel_dvo_init(dev
);
1459 if (IS_I9XX(dev
) && !IS_I915G(dev
))
1462 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1463 struct intel_output
*intel_output
= to_intel_output(connector
);
1464 struct drm_encoder
*encoder
= &intel_output
->enc
;
1465 int crtc_mask
= 0, clone_mask
= 0;
1468 switch(intel_output
->type
) {
1469 case INTEL_OUTPUT_HDMI
:
1470 crtc_mask
= ((1 << 0)|
1472 clone_mask
= ((1 << INTEL_OUTPUT_HDMI
));
1474 case INTEL_OUTPUT_DVO
:
1475 case INTEL_OUTPUT_SDVO
:
1476 crtc_mask
= ((1 << 0)|
1478 clone_mask
= ((1 << INTEL_OUTPUT_ANALOG
) |
1479 (1 << INTEL_OUTPUT_DVO
) |
1480 (1 << INTEL_OUTPUT_SDVO
));
1482 case INTEL_OUTPUT_ANALOG
:
1483 crtc_mask
= ((1 << 0)|
1485 clone_mask
= ((1 << INTEL_OUTPUT_ANALOG
) |
1486 (1 << INTEL_OUTPUT_DVO
) |
1487 (1 << INTEL_OUTPUT_SDVO
));
1489 case INTEL_OUTPUT_LVDS
:
1490 crtc_mask
= (1 << 1);
1491 clone_mask
= (1 << INTEL_OUTPUT_LVDS
);
1493 case INTEL_OUTPUT_TVOUT
:
1494 crtc_mask
= ((1 << 0) |
1496 clone_mask
= (1 << INTEL_OUTPUT_TVOUT
);
1499 encoder
->possible_crtcs
= crtc_mask
;
1500 encoder
->possible_clones
= intel_connector_clones(dev
, clone_mask
);
1504 static void intel_user_framebuffer_destroy(struct drm_framebuffer
*fb
)
1506 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
1507 struct drm_device
*dev
= fb
->dev
;
1510 intelfb_remove(dev
, fb
);
1512 drm_framebuffer_cleanup(fb
);
1513 mutex_lock(&dev
->struct_mutex
);
1514 drm_gem_object_unreference(intel_fb
->obj
);
1515 mutex_unlock(&dev
->struct_mutex
);
1520 static int intel_user_framebuffer_create_handle(struct drm_framebuffer
*fb
,
1521 struct drm_file
*file_priv
,
1522 unsigned int *handle
)
1524 struct intel_framebuffer
*intel_fb
= to_intel_framebuffer(fb
);
1525 struct drm_gem_object
*object
= intel_fb
->obj
;
1527 return drm_gem_handle_create(file_priv
, object
, handle
);
1530 static const struct drm_framebuffer_funcs intel_fb_funcs
= {
1531 .destroy
= intel_user_framebuffer_destroy
,
1532 .create_handle
= intel_user_framebuffer_create_handle
,
1535 int intel_framebuffer_create(struct drm_device
*dev
,
1536 struct drm_mode_fb_cmd
*mode_cmd
,
1537 struct drm_framebuffer
**fb
,
1538 struct drm_gem_object
*obj
)
1540 struct intel_framebuffer
*intel_fb
;
1543 intel_fb
= kzalloc(sizeof(*intel_fb
), GFP_KERNEL
);
1547 ret
= drm_framebuffer_init(dev
, &intel_fb
->base
, &intel_fb_funcs
);
1549 DRM_ERROR("framebuffer init failed %d\n", ret
);
1553 drm_helper_mode_fill_fb_struct(&intel_fb
->base
, mode_cmd
);
1555 intel_fb
->obj
= obj
;
1557 *fb
= &intel_fb
->base
;
1563 static struct drm_framebuffer
*
1564 intel_user_framebuffer_create(struct drm_device
*dev
,
1565 struct drm_file
*filp
,
1566 struct drm_mode_fb_cmd
*mode_cmd
)
1568 struct drm_gem_object
*obj
;
1569 struct drm_framebuffer
*fb
;
1572 obj
= drm_gem_object_lookup(dev
, filp
, mode_cmd
->handle
);
1576 ret
= intel_framebuffer_create(dev
, mode_cmd
, &fb
, obj
);
1578 drm_gem_object_unreference(obj
);
1585 static const struct drm_mode_config_funcs intel_mode_funcs
= {
1586 .fb_create
= intel_user_framebuffer_create
,
1587 .fb_changed
= intelfb_probe
,
1590 void intel_modeset_init(struct drm_device
*dev
)
1595 drm_mode_config_init(dev
);
1597 dev
->mode_config
.min_width
= 0;
1598 dev
->mode_config
.min_height
= 0;
1600 dev
->mode_config
.funcs
= (void *)&intel_mode_funcs
;
1602 if (IS_I965G(dev
)) {
1603 dev
->mode_config
.max_width
= 8192;
1604 dev
->mode_config
.max_height
= 8192;
1606 dev
->mode_config
.max_width
= 2048;
1607 dev
->mode_config
.max_height
= 2048;
1610 /* set memory base */
1612 dev
->mode_config
.fb_base
= pci_resource_start(dev
->pdev
, 2);
1614 dev
->mode_config
.fb_base
= pci_resource_start(dev
->pdev
, 0);
1616 if (IS_MOBILE(dev
) || IS_I9XX(dev
))
1620 DRM_DEBUG("%d display pipe%s available.\n",
1621 num_pipe
, num_pipe
> 1 ? "s" : "");
1623 for (i
= 0; i
< num_pipe
; i
++) {
1624 intel_crtc_init(dev
, i
);
1627 intel_setup_outputs(dev
);
1630 void intel_modeset_cleanup(struct drm_device
*dev
)
1632 drm_mode_config_cleanup(dev
);
1636 /* current intel driver doesn't take advantage of encoders
1637 always give back the encoder for the connector
1639 struct drm_encoder
*intel_best_encoder(struct drm_connector
*connector
)
1641 struct intel_output
*intel_output
= to_intel_output(connector
);
1643 return &intel_output
->enc
;