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1 /**************************************************************************
2  * Copyright (c) 2007-2011, Intel Corporation.
3  * All Rights Reserved.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program; if not, write to the Free Software Foundation, Inc.,
16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
17  *
18  **************************************************************************/
19 
20 #ifndef _PSB_DRV_H_
21 #define _PSB_DRV_H_
22 
23 #include <linux/kref.h>
24 
25 #include <drm/drmP.h>
26 #include <drm/drm_global.h>
27 #include <drm/gma_drm.h>
28 #include "psb_reg.h"
29 #include "psb_intel_drv.h"
30 #include "gma_display.h"
31 #include "intel_bios.h"
32 #include "gtt.h"
33 #include "power.h"
34 #include "opregion.h"
35 #include "oaktrail.h"
36 #include "mmu.h"
37 
38 #define DRIVER_AUTHOR "Alan Cox <alan@linux.intel.com> and others"
39 #define DRIVER_LICENSE "GPL"
40 
41 #define DRIVER_NAME "gma500"
42 #define DRIVER_DESC "DRM driver for the Intel GMA500, GMA600, GMA3600, GMA3650"
43 #define DRIVER_DATE "20140314"
44 
45 #define DRIVER_MAJOR 1
46 #define DRIVER_MINOR 0
47 #define DRIVER_PATCHLEVEL 0
48 
49 /* Append new drm mode definition here, align with libdrm definition */
50 #define DRM_MODE_SCALE_NO_SCALE   	2
51 
52 enum {
53 	CHIP_PSB_8108 = 0,		/* Poulsbo */
54 	CHIP_PSB_8109 = 1,		/* Poulsbo */
55 	CHIP_MRST_4100 = 2,		/* Moorestown/Oaktrail */
56 	CHIP_MFLD_0130 = 3,		/* Medfield */
57 };
58 
59 #define IS_PSB(dev) (((dev)->pdev->device & 0xfffe) == 0x8108)
60 #define IS_MRST(dev) (((dev)->pdev->device & 0xfff0) == 0x4100)
61 #define IS_MFLD(dev) (((dev)->pdev->device & 0xfff8) == 0x0130)
62 #define IS_CDV(dev) (((dev)->pdev->device & 0xfff0) == 0x0be0)
63 
64 /* Hardware offsets */
65 #define PSB_VDC_OFFSET		 0x00000000
66 #define PSB_VDC_SIZE		 0x000080000
67 #define MRST_MMIO_SIZE		 0x0000C0000
68 #define MDFLD_MMIO_SIZE          0x000100000
69 #define PSB_SGX_SIZE		 0x8000
70 #define PSB_SGX_OFFSET		 0x00040000
71 #define MRST_SGX_OFFSET		 0x00080000
72 
73 /* PCI resource identifiers */
74 #define PSB_MMIO_RESOURCE	 0
75 #define PSB_AUX_RESOURCE	 0
76 #define PSB_GATT_RESOURCE	 2
77 #define PSB_GTT_RESOURCE	 3
78 
79 /* PCI configuration */
80 #define PSB_GMCH_CTRL		 0x52
81 #define PSB_BSM			 0x5C
82 #define _PSB_GMCH_ENABLED	 0x4
83 #define PSB_PGETBL_CTL		 0x2020
84 #define _PSB_PGETBL_ENABLED	 0x00000001
85 #define PSB_SGX_2D_SLAVE_PORT	 0x4000
86 
87 /* TODO: To get rid of */
88 #define PSB_TT_PRIV0_LIMIT	 (256*1024*1024)
89 #define PSB_TT_PRIV0_PLIMIT	 (PSB_TT_PRIV0_LIMIT >> PAGE_SHIFT)
90 
91 /* SGX side MMU definitions (these can probably go) */
92 
93 /* Flags for external memory type field */
94 #define PSB_MMU_CACHED_MEMORY	  0x0001	/* Bind to MMU only */
95 #define PSB_MMU_RO_MEMORY	  0x0002	/* MMU RO memory */
96 #define PSB_MMU_WO_MEMORY	  0x0004	/* MMU WO memory */
97 
98 /* PTE's and PDE's */
99 #define PSB_PDE_MASK		  0x003FFFFF
100 #define PSB_PDE_SHIFT		  22
101 #define PSB_PTE_SHIFT		  12
102 
103 /* Cache control */
104 #define PSB_PTE_VALID		  0x0001	/* PTE / PDE valid */
105 #define PSB_PTE_WO		  0x0002	/* Write only */
106 #define PSB_PTE_RO		  0x0004	/* Read only */
107 #define PSB_PTE_CACHED		  0x0008	/* CPU cache coherent */
108 
109 /* VDC registers and bits */
110 #define PSB_MSVDX_CLOCKGATING	  0x2064
111 #define PSB_TOPAZ_CLOCKGATING	  0x2068
112 #define PSB_HWSTAM		  0x2098
113 #define PSB_INSTPM		  0x20C0
114 #define PSB_INT_IDENTITY_R        0x20A4
115 #define _PSB_IRQ_ASLE		  (1<<0)
116 #define _MDFLD_PIPEC_EVENT_FLAG   (1<<2)
117 #define _MDFLD_PIPEC_VBLANK_FLAG  (1<<3)
118 #define _PSB_DPST_PIPEB_FLAG      (1<<4)
119 #define _MDFLD_PIPEB_EVENT_FLAG   (1<<4)
120 #define _PSB_VSYNC_PIPEB_FLAG	  (1<<5)
121 #define _PSB_DPST_PIPEA_FLAG      (1<<6)
122 #define _PSB_PIPEA_EVENT_FLAG     (1<<6)
123 #define _PSB_VSYNC_PIPEA_FLAG	  (1<<7)
124 #define _MDFLD_MIPIA_FLAG	  (1<<16)
125 #define _MDFLD_MIPIC_FLAG	  (1<<17)
126 #define _PSB_IRQ_DISP_HOTSYNC	  (1<<17)
127 #define _PSB_IRQ_SGX_FLAG	  (1<<18)
128 #define _PSB_IRQ_MSVDX_FLAG	  (1<<19)
129 #define _LNC_IRQ_TOPAZ_FLAG	  (1<<20)
130 
131 #define _PSB_PIPE_EVENT_FLAG	(_PSB_VSYNC_PIPEA_FLAG | \
132 				 _PSB_VSYNC_PIPEB_FLAG)
133 
134 /* This flag includes all the display IRQ bits excepts the vblank irqs. */
135 #define _MDFLD_DISP_ALL_IRQ_FLAG (_MDFLD_PIPEC_EVENT_FLAG | \
136 				  _MDFLD_PIPEB_EVENT_FLAG | \
137 				  _PSB_PIPEA_EVENT_FLAG | \
138 				  _PSB_VSYNC_PIPEA_FLAG | \
139 				  _MDFLD_MIPIA_FLAG | \
140 				  _MDFLD_MIPIC_FLAG)
141 #define PSB_INT_IDENTITY_R	  0x20A4
142 #define PSB_INT_MASK_R		  0x20A8
143 #define PSB_INT_ENABLE_R	  0x20A0
144 
145 #define _PSB_MMU_ER_MASK      0x0001FF00
146 #define _PSB_MMU_ER_HOST      (1 << 16)
147 #define GPIOA			0x5010
148 #define GPIOB			0x5014
149 #define GPIOC			0x5018
150 #define GPIOD			0x501c
151 #define GPIOE			0x5020
152 #define GPIOF			0x5024
153 #define GPIOG			0x5028
154 #define GPIOH			0x502c
155 #define GPIO_CLOCK_DIR_MASK		(1 << 0)
156 #define GPIO_CLOCK_DIR_IN		(0 << 1)
157 #define GPIO_CLOCK_DIR_OUT		(1 << 1)
158 #define GPIO_CLOCK_VAL_MASK		(1 << 2)
159 #define GPIO_CLOCK_VAL_OUT		(1 << 3)
160 #define GPIO_CLOCK_VAL_IN		(1 << 4)
161 #define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
162 #define GPIO_DATA_DIR_MASK		(1 << 8)
163 #define GPIO_DATA_DIR_IN		(0 << 9)
164 #define GPIO_DATA_DIR_OUT		(1 << 9)
165 #define GPIO_DATA_VAL_MASK		(1 << 10)
166 #define GPIO_DATA_VAL_OUT		(1 << 11)
167 #define GPIO_DATA_VAL_IN		(1 << 12)
168 #define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
169 
170 #define VCLK_DIVISOR_VGA0   0x6000
171 #define VCLK_DIVISOR_VGA1   0x6004
172 #define VCLK_POST_DIV	    0x6010
173 
174 #define PSB_COMM_2D (PSB_ENGINE_2D << 4)
175 #define PSB_COMM_3D (PSB_ENGINE_3D << 4)
176 #define PSB_COMM_TA (PSB_ENGINE_TA << 4)
177 #define PSB_COMM_HP (PSB_ENGINE_HP << 4)
178 #define PSB_COMM_USER_IRQ (1024 >> 2)
179 #define PSB_COMM_USER_IRQ_LOST (PSB_COMM_USER_IRQ + 1)
180 #define PSB_COMM_FW (2048 >> 2)
181 
182 #define PSB_UIRQ_VISTEST	       1
183 #define PSB_UIRQ_OOM_REPLY	       2
184 #define PSB_UIRQ_FIRE_TA_REPLY	       3
185 #define PSB_UIRQ_FIRE_RASTER_REPLY     4
186 
187 #define PSB_2D_SIZE (256*1024*1024)
188 #define PSB_MAX_RELOC_PAGES 1024
189 
190 #define PSB_LOW_REG_OFFS 0x0204
191 #define PSB_HIGH_REG_OFFS 0x0600
192 
193 #define PSB_NUM_VBLANKS 2
194 
195 
196 #define PSB_2D_SIZE (256*1024*1024)
197 #define PSB_MAX_RELOC_PAGES 1024
198 
199 #define PSB_LOW_REG_OFFS 0x0204
200 #define PSB_HIGH_REG_OFFS 0x0600
201 
202 #define PSB_NUM_VBLANKS 2
203 #define PSB_WATCHDOG_DELAY (HZ * 2)
204 #define PSB_LID_DELAY (HZ / 10)
205 
206 #define MDFLD_PNW_B0 0x04
207 #define MDFLD_PNW_C0 0x08
208 
209 #define MDFLD_DSR_2D_3D_0 	(1 << 0)
210 #define MDFLD_DSR_2D_3D_2 	(1 << 1)
211 #define MDFLD_DSR_CURSOR_0 	(1 << 2)
212 #define MDFLD_DSR_CURSOR_2	(1 << 3)
213 #define MDFLD_DSR_OVERLAY_0 	(1 << 4)
214 #define MDFLD_DSR_OVERLAY_2 	(1 << 5)
215 #define MDFLD_DSR_MIPI_CONTROL	(1 << 6)
216 #define MDFLD_DSR_DAMAGE_MASK_0	((1 << 0) | (1 << 2) | (1 << 4))
217 #define MDFLD_DSR_DAMAGE_MASK_2	((1 << 1) | (1 << 3) | (1 << 5))
218 #define MDFLD_DSR_2D_3D 	(MDFLD_DSR_2D_3D_0 | MDFLD_DSR_2D_3D_2)
219 
220 #define MDFLD_DSR_RR		45
221 #define MDFLD_DPU_ENABLE 	(1 << 31)
222 #define MDFLD_DSR_FULLSCREEN 	(1 << 30)
223 #define MDFLD_DSR_DELAY		(HZ / MDFLD_DSR_RR)
224 
225 #define PSB_PWR_STATE_ON		1
226 #define PSB_PWR_STATE_OFF		2
227 
228 #define PSB_PMPOLICY_NOPM		0
229 #define PSB_PMPOLICY_CLOCKGATING	1
230 #define PSB_PMPOLICY_POWERDOWN		2
231 
232 #define PSB_PMSTATE_POWERUP		0
233 #define PSB_PMSTATE_CLOCKGATED		1
234 #define PSB_PMSTATE_POWERDOWN		2
235 #define PSB_PCIx_MSI_ADDR_LOC		0x94
236 #define PSB_PCIx_MSI_DATA_LOC		0x98
237 
238 /* Medfield crystal settings */
239 #define KSEL_CRYSTAL_19 1
240 #define KSEL_BYPASS_19 5
241 #define KSEL_BYPASS_25 6
242 #define KSEL_BYPASS_83_100 7
243 
244 struct opregion_header;
245 struct opregion_acpi;
246 struct opregion_swsci;
247 struct opregion_asle;
248 
249 struct psb_intel_opregion {
250 	struct opregion_header *header;
251 	struct opregion_acpi *acpi;
252 	struct opregion_swsci *swsci;
253 	struct opregion_asle *asle;
254 	void *vbt;
255 	u32 __iomem *lid_state;
256 	struct work_struct asle_work;
257 };
258 
259 struct sdvo_device_mapping {
260 	u8 initialized;
261 	u8 dvo_port;
262 	u8 slave_addr;
263 	u8 dvo_wiring;
264 	u8 i2c_pin;
265 	u8 i2c_speed;
266 	u8 ddc_pin;
267 };
268 
269 struct intel_gmbus {
270 	struct i2c_adapter adapter;
271 	struct i2c_adapter *force_bit;
272 	u32 reg0;
273 };
274 
275 /* Register offset maps */
276 struct psb_offset {
277 	u32	fp0;
278 	u32	fp1;
279 	u32	cntr;
280 	u32	conf;
281 	u32	src;
282 	u32	dpll;
283 	u32	dpll_md;
284 	u32	htotal;
285 	u32	hblank;
286 	u32	hsync;
287 	u32	vtotal;
288 	u32	vblank;
289 	u32	vsync;
290 	u32	stride;
291 	u32	size;
292 	u32	pos;
293 	u32	surf;
294 	u32	addr;
295 	u32	base;
296 	u32	status;
297 	u32	linoff;
298 	u32	tileoff;
299 	u32	palette;
300 };
301 
302 /*
303  *	Register save state. This is used to hold the context when the
304  *	device is powered off. In the case of Oaktrail this can (but does not
305  *	yet) include screen blank. Operations occuring during the save
306  *	update the register cache instead.
307  */
308 
309 /* Common status for pipes */
310 struct psb_pipe {
311 	u32	fp0;
312 	u32	fp1;
313 	u32	cntr;
314 	u32	conf;
315 	u32	src;
316 	u32	dpll;
317 	u32	dpll_md;
318 	u32	htotal;
319 	u32	hblank;
320 	u32	hsync;
321 	u32	vtotal;
322 	u32	vblank;
323 	u32	vsync;
324 	u32	stride;
325 	u32	size;
326 	u32	pos;
327 	u32	base;
328 	u32	surf;
329 	u32	addr;
330 	u32	status;
331 	u32	linoff;
332 	u32	tileoff;
333 	u32	palette[256];
334 };
335 
336 struct psb_state {
337 	uint32_t saveVCLK_DIVISOR_VGA0;
338 	uint32_t saveVCLK_DIVISOR_VGA1;
339 	uint32_t saveVCLK_POST_DIV;
340 	uint32_t saveVGACNTRL;
341 	uint32_t saveADPA;
342 	uint32_t saveLVDS;
343 	uint32_t saveDVOA;
344 	uint32_t saveDVOB;
345 	uint32_t saveDVOC;
346 	uint32_t savePP_ON;
347 	uint32_t savePP_OFF;
348 	uint32_t savePP_CONTROL;
349 	uint32_t savePP_CYCLE;
350 	uint32_t savePFIT_CONTROL;
351 	uint32_t saveCLOCKGATING;
352 	uint32_t saveDSPARB;
353 	uint32_t savePFIT_AUTO_RATIOS;
354 	uint32_t savePFIT_PGM_RATIOS;
355 	uint32_t savePP_ON_DELAYS;
356 	uint32_t savePP_OFF_DELAYS;
357 	uint32_t savePP_DIVISOR;
358 	uint32_t saveBCLRPAT_A;
359 	uint32_t saveBCLRPAT_B;
360 	uint32_t savePERF_MODE;
361 	uint32_t saveDSPFW1;
362 	uint32_t saveDSPFW2;
363 	uint32_t saveDSPFW3;
364 	uint32_t saveDSPFW4;
365 	uint32_t saveDSPFW5;
366 	uint32_t saveDSPFW6;
367 	uint32_t saveCHICKENBIT;
368 	uint32_t saveDSPACURSOR_CTRL;
369 	uint32_t saveDSPBCURSOR_CTRL;
370 	uint32_t saveDSPACURSOR_BASE;
371 	uint32_t saveDSPBCURSOR_BASE;
372 	uint32_t saveDSPACURSOR_POS;
373 	uint32_t saveDSPBCURSOR_POS;
374 	uint32_t saveOV_OVADD;
375 	uint32_t saveOV_OGAMC0;
376 	uint32_t saveOV_OGAMC1;
377 	uint32_t saveOV_OGAMC2;
378 	uint32_t saveOV_OGAMC3;
379 	uint32_t saveOV_OGAMC4;
380 	uint32_t saveOV_OGAMC5;
381 	uint32_t saveOVC_OVADD;
382 	uint32_t saveOVC_OGAMC0;
383 	uint32_t saveOVC_OGAMC1;
384 	uint32_t saveOVC_OGAMC2;
385 	uint32_t saveOVC_OGAMC3;
386 	uint32_t saveOVC_OGAMC4;
387 	uint32_t saveOVC_OGAMC5;
388 
389 	/* DPST register save */
390 	uint32_t saveHISTOGRAM_INT_CONTROL_REG;
391 	uint32_t saveHISTOGRAM_LOGIC_CONTROL_REG;
392 	uint32_t savePWM_CONTROL_LOGIC;
393 };
394 
395 struct medfield_state {
396 	uint32_t saveMIPI;
397 	uint32_t saveMIPI_C;
398 
399 	uint32_t savePFIT_CONTROL;
400 	uint32_t savePFIT_PGM_RATIOS;
401 	uint32_t saveHDMIPHYMISCCTL;
402 	uint32_t saveHDMIB_CONTROL;
403 };
404 
405 struct cdv_state {
406 	uint32_t saveDSPCLK_GATE_D;
407 	uint32_t saveRAMCLK_GATE_D;
408 	uint32_t saveDSPARB;
409 	uint32_t saveDSPFW[6];
410 	uint32_t saveADPA;
411 	uint32_t savePP_CONTROL;
412 	uint32_t savePFIT_PGM_RATIOS;
413 	uint32_t saveLVDS;
414 	uint32_t savePFIT_CONTROL;
415 	uint32_t savePP_ON_DELAYS;
416 	uint32_t savePP_OFF_DELAYS;
417 	uint32_t savePP_CYCLE;
418 	uint32_t saveVGACNTRL;
419 	uint32_t saveIER;
420 	uint32_t saveIMR;
421 	u8	 saveLBB;
422 };
423 
424 struct psb_save_area {
425 	struct psb_pipe pipe[3];
426 	uint32_t saveBSM;
427 	uint32_t saveVBT;
428 	union {
429 	        struct psb_state psb;
430 		struct medfield_state mdfld;
431 		struct cdv_state cdv;
432 	};
433 	uint32_t saveBLC_PWM_CTL2;
434 	uint32_t saveBLC_PWM_CTL;
435 };
436 
437 struct psb_ops;
438 
439 #define PSB_NUM_PIPE		3
440 
441 struct drm_psb_private {
442 	struct drm_device *dev;
443 	struct pci_dev *aux_pdev; /* Currently only used by mrst */
444 	const struct psb_ops *ops;
445 	const struct psb_offset *regmap;
446 
447 	struct child_device_config *child_dev;
448 	int child_dev_num;
449 
450 	struct psb_gtt gtt;
451 
452 	/* GTT Memory manager */
453 	struct psb_gtt_mm *gtt_mm;
454 	struct page *scratch_page;
455 	u32 __iomem *gtt_map;
456 	uint32_t stolen_base;
457 	u8 __iomem *vram_addr;
458 	unsigned long vram_stolen_size;
459 	int gtt_initialized;
460 	u16 gmch_ctrl;		/* Saved GTT setup */
461 	u32 pge_ctl;
462 
463 	struct mutex gtt_mutex;
464 	struct resource *gtt_mem;	/* Our PCI resource */
465 
466 	struct psb_mmu_driver *mmu;
467 	struct psb_mmu_pd *pf_pd;
468 
469 	/* Register base */
470 	uint8_t __iomem *sgx_reg;
471 	uint8_t __iomem *vdc_reg;
472 	uint8_t __iomem *aux_reg; /* Auxillary vdc pipe regs */
473 	uint32_t gatt_free_offset;
474 
475 	/* Fencing / irq */
476 	uint32_t vdc_irq_mask;
477 	uint32_t pipestat[PSB_NUM_PIPE];
478 
479 	spinlock_t irqmask_lock;
480 
481 	/* Power */
482 	bool suspended;
483 	bool display_power;
484 	int display_count;
485 
486 	/* Modesetting */
487 	struct psb_intel_mode_device mode_dev;
488 	bool modeset;	/* true if we have done the mode_device setup */
489 
490 	struct drm_crtc *plane_to_crtc_mapping[PSB_NUM_PIPE];
491 	struct drm_crtc *pipe_to_crtc_mapping[PSB_NUM_PIPE];
492 	uint32_t num_pipe;
493 
494 	/* OSPM info (Power management base) (TODO: can go ?) */
495 	uint32_t ospm_base;
496 
497 	/* Sizes info */
498 	u32 fuse_reg_value;
499 	u32 video_device_fuse;
500 
501 	/* PCI revision ID for B0:D2:F0 */
502 	uint8_t platform_rev_id;
503 
504 	/* gmbus */
505 	struct intel_gmbus *gmbus;
506 	uint8_t __iomem *gmbus_reg;
507 
508 	/* Used by SDVO */
509 	int crt_ddc_pin;
510 	/* FIXME: The mappings should be parsed from bios but for now we can
511 		  pretend there are no mappings available */
512 	struct sdvo_device_mapping sdvo_mappings[2];
513 	u32 hotplug_supported_mask;
514 	struct drm_property *broadcast_rgb_property;
515 	struct drm_property *force_audio_property;
516 
517 	/* LVDS info */
518 	int backlight_duty_cycle;	/* restore backlight to this value */
519 	bool panel_wants_dither;
520 	struct drm_display_mode *panel_fixed_mode;
521 	struct drm_display_mode *lfp_lvds_vbt_mode;
522 	struct drm_display_mode *sdvo_lvds_vbt_mode;
523 
524 	struct bdb_lvds_backlight *lvds_bl; /* LVDS backlight info from VBT */
525 	struct psb_intel_i2c_chan *lvds_i2c_bus; /* FIXME: Remove this? */
526 
527 	/* Feature bits from the VBIOS */
528 	unsigned int int_tv_support:1;
529 	unsigned int lvds_dither:1;
530 	unsigned int lvds_vbt:1;
531 	unsigned int int_crt_support:1;
532 	unsigned int lvds_use_ssc:1;
533 	int lvds_ssc_freq;
534 	bool is_lvds_on;
535 	bool is_mipi_on;
536 	u32 mipi_ctrl_display;
537 
538 	unsigned int core_freq;
539 	uint32_t iLVDS_enable;
540 
541 	/* Runtime PM state */
542 	int rpm_enabled;
543 
544 	/* MID specific */
545 	bool has_gct;
546 	struct oaktrail_gct_data gct_data;
547 
548 	/* Oaktrail HDMI state */
549 	struct oaktrail_hdmi_dev *hdmi_priv;
550 
551 	/* Register state */
552 	struct psb_save_area regs;
553 
554 	/* MSI reg save */
555 	uint32_t msi_addr;
556 	uint32_t msi_data;
557 
558 	/* Hotplug handling */
559 	struct work_struct hotplug_work;
560 
561 	/* LID-Switch */
562 	spinlock_t lid_lock;
563 	struct timer_list lid_timer;
564 	struct psb_intel_opregion opregion;
565 	u32 lid_last_state;
566 
567 	/* Watchdog */
568 	uint32_t apm_reg;
569 	uint16_t apm_base;
570 
571 	/*
572 	 * Used for modifying backlight from
573 	 * xrandr -- consider removing and using HAL instead
574 	 */
575 	struct backlight_device *backlight_device;
576 	struct drm_property *backlight_property;
577 	bool backlight_enabled;
578 	int backlight_level;
579 	uint32_t blc_adj1;
580 	uint32_t blc_adj2;
581 
582 	void *fbdev;
583 
584 	/* 2D acceleration */
585 	spinlock_t lock_2d;
586 
587 	/* Panel brightness */
588 	int brightness;
589 	int brightness_adjusted;
590 
591 	bool dsr_enable;
592 	u32 dsr_fb_update;
593 	bool dpi_panel_on[3];
594 	void *dsi_configs[2];
595 	u32 bpp;
596 	u32 bpp2;
597 
598 	u32 pipeconf[3];
599 	u32 dspcntr[3];
600 
601 	int mdfld_panel_id;
602 
603 	bool dplla_96mhz;	/* DPLL data from the VBT */
604 
605 	struct {
606 		int rate;
607 		int lanes;
608 		int preemphasis;
609 		int vswing;
610 
611 		bool initialized;
612 		bool support;
613 		int bpp;
614 		struct edp_power_seq pps;
615 	} edp;
616 	uint8_t panel_type;
617 };
618 
619 
620 /* Operations for each board type */
621 struct psb_ops {
622 	const char *name;
623 	unsigned int accel_2d:1;
624 	int pipes;		/* Number of output pipes */
625 	int crtcs;		/* Number of CRTCs */
626 	int sgx_offset;		/* Base offset of SGX device */
627 	int hdmi_mask;		/* Mask of HDMI CRTCs */
628 	int lvds_mask;		/* Mask of LVDS CRTCs */
629 	int sdvo_mask;		/* Mask of SDVO CRTCs */
630 	int cursor_needs_phys;  /* If cursor base reg need physical address */
631 
632 	/* Sub functions */
633 	struct drm_crtc_helper_funcs const *crtc_helper;
634 	struct drm_crtc_funcs const *crtc_funcs;
635 	const struct gma_clock_funcs *clock_funcs;
636 
637 	/* Setup hooks */
638 	int (*chip_setup)(struct drm_device *dev);
639 	void (*chip_teardown)(struct drm_device *dev);
640 	/* Optional helper caller after modeset */
641 	void (*errata)(struct drm_device *dev);
642 
643 	/* Display management hooks */
644 	int (*output_init)(struct drm_device *dev);
645 	int (*hotplug)(struct drm_device *dev);
646 	void (*hotplug_enable)(struct drm_device *dev, bool on);
647 	/* Power management hooks */
648 	void (*init_pm)(struct drm_device *dev);
649 	int (*save_regs)(struct drm_device *dev);
650 	int (*restore_regs)(struct drm_device *dev);
651 	int (*power_up)(struct drm_device *dev);
652 	int (*power_down)(struct drm_device *dev);
653 	void (*update_wm)(struct drm_device *dev, struct drm_crtc *crtc);
654 	void (*disable_sr)(struct drm_device *dev);
655 
656 	void (*lvds_bl_power)(struct drm_device *dev, bool on);
657 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
658 	/* Backlight */
659 	int (*backlight_init)(struct drm_device *dev);
660 #endif
661 	int i2c_bus;		/* I2C bus identifier for Moorestown */
662 };
663 
664 
665 
666 extern int drm_crtc_probe_output_modes(struct drm_device *dev, int, int);
667 extern int drm_pick_crtcs(struct drm_device *dev);
668 
psb_priv(struct drm_device * dev)669 static inline struct drm_psb_private *psb_priv(struct drm_device *dev)
670 {
671 	return (struct drm_psb_private *) dev->dev_private;
672 }
673 
674 /* psb_irq.c */
675 extern irqreturn_t psb_irq_handler(int irq, void *arg);
676 extern int psb_irq_enable_dpst(struct drm_device *dev);
677 extern int psb_irq_disable_dpst(struct drm_device *dev);
678 extern void psb_irq_preinstall(struct drm_device *dev);
679 extern int psb_irq_postinstall(struct drm_device *dev);
680 extern void psb_irq_uninstall(struct drm_device *dev);
681 extern void psb_irq_turn_on_dpst(struct drm_device *dev);
682 extern void psb_irq_turn_off_dpst(struct drm_device *dev);
683 
684 extern void psb_irq_uninstall_islands(struct drm_device *dev, int hw_islands);
685 extern int psb_vblank_wait2(struct drm_device *dev, unsigned int *sequence);
686 extern int psb_vblank_wait(struct drm_device *dev, unsigned int *sequence);
687 extern int psb_enable_vblank(struct drm_device *dev, int crtc);
688 extern void psb_disable_vblank(struct drm_device *dev, int crtc);
689 void
690 psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
691 
692 void
693 psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
694 
695 extern u32 psb_get_vblank_counter(struct drm_device *dev, int crtc);
696 
697 /* framebuffer.c */
698 extern int psbfb_probed(struct drm_device *dev);
699 extern int psbfb_remove(struct drm_device *dev,
700 			struct drm_framebuffer *fb);
701 /* accel_2d.c */
702 extern void psbfb_copyarea(struct fb_info *info,
703 					const struct fb_copyarea *region);
704 extern int psbfb_sync(struct fb_info *info);
705 extern void psb_spank(struct drm_psb_private *dev_priv);
706 
707 /* psb_reset.c */
708 extern void psb_lid_timer_init(struct drm_psb_private *dev_priv);
709 extern void psb_lid_timer_takedown(struct drm_psb_private *dev_priv);
710 extern void psb_print_pagefault(struct drm_psb_private *dev_priv);
711 
712 /* modesetting */
713 extern void psb_modeset_init(struct drm_device *dev);
714 extern void psb_modeset_cleanup(struct drm_device *dev);
715 extern int psb_fbdev_init(struct drm_device *dev);
716 
717 /* backlight.c */
718 int gma_backlight_init(struct drm_device *dev);
719 void gma_backlight_exit(struct drm_device *dev);
720 void gma_backlight_disable(struct drm_device *dev);
721 void gma_backlight_enable(struct drm_device *dev);
722 void gma_backlight_set(struct drm_device *dev, int v);
723 
724 /* oaktrail_crtc.c */
725 extern const struct drm_crtc_helper_funcs oaktrail_helper_funcs;
726 
727 /* oaktrail_lvds.c */
728 extern void oaktrail_lvds_init(struct drm_device *dev,
729 		    struct psb_intel_mode_device *mode_dev);
730 
731 /* psb_intel_display.c */
732 extern const struct drm_crtc_helper_funcs psb_intel_helper_funcs;
733 extern const struct drm_crtc_funcs psb_intel_crtc_funcs;
734 
735 /* psb_intel_lvds.c */
736 extern const struct drm_connector_helper_funcs
737 					psb_intel_lvds_connector_helper_funcs;
738 extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
739 
740 /* gem.c */
741 extern void psb_gem_free_object(struct drm_gem_object *obj);
742 extern int psb_gem_get_aperture(struct drm_device *dev, void *data,
743 			struct drm_file *file);
744 extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
745 			struct drm_mode_create_dumb *args);
746 extern int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
747 			uint32_t handle, uint64_t *offset);
748 extern int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
749 extern int psb_gem_create_ioctl(struct drm_device *dev, void *data,
750 			struct drm_file *file);
751 extern int psb_gem_mmap_ioctl(struct drm_device *dev, void *data,
752 					struct drm_file *file);
753 
754 /* psb_device.c */
755 extern const struct psb_ops psb_chip_ops;
756 
757 /* oaktrail_device.c */
758 extern const struct psb_ops oaktrail_chip_ops;
759 
760 /* mdlfd_device.c */
761 extern const struct psb_ops mdfld_chip_ops;
762 
763 /* cdv_device.c */
764 extern const struct psb_ops cdv_chip_ops;
765 
766 /* Debug print bits setting */
767 #define PSB_D_GENERAL (1 << 0)
768 #define PSB_D_INIT    (1 << 1)
769 #define PSB_D_IRQ     (1 << 2)
770 #define PSB_D_ENTRY   (1 << 3)
771 /* debug the get H/V BP/FP count */
772 #define PSB_D_HV      (1 << 4)
773 #define PSB_D_DBI_BF  (1 << 5)
774 #define PSB_D_PM      (1 << 6)
775 #define PSB_D_RENDER  (1 << 7)
776 #define PSB_D_REG     (1 << 8)
777 #define PSB_D_MSVDX   (1 << 9)
778 #define PSB_D_TOPAZ   (1 << 10)
779 
780 extern int drm_idle_check_interval;
781 
782 /* Utilities */
MRST_MSG_READ32(uint port,uint offset)783 static inline u32 MRST_MSG_READ32(uint port, uint offset)
784 {
785 	int mcr = (0xD0<<24) | (port << 16) | (offset << 8);
786 	uint32_t ret_val = 0;
787 	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
788 	pci_write_config_dword(pci_root, 0xD0, mcr);
789 	pci_read_config_dword(pci_root, 0xD4, &ret_val);
790 	pci_dev_put(pci_root);
791 	return ret_val;
792 }
MRST_MSG_WRITE32(uint port,uint offset,u32 value)793 static inline void MRST_MSG_WRITE32(uint port, uint offset, u32 value)
794 {
795 	int mcr = (0xE0<<24) | (port << 16) | (offset << 8) | 0xF0;
796 	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
797 	pci_write_config_dword(pci_root, 0xD4, value);
798 	pci_write_config_dword(pci_root, 0xD0, mcr);
799 	pci_dev_put(pci_root);
800 }
MDFLD_MSG_READ32(uint port,uint offset)801 static inline u32 MDFLD_MSG_READ32(uint port, uint offset)
802 {
803 	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
804 	uint32_t ret_val = 0;
805 	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
806 	pci_write_config_dword(pci_root, 0xD0, mcr);
807 	pci_read_config_dword(pci_root, 0xD4, &ret_val);
808 	pci_dev_put(pci_root);
809 	return ret_val;
810 }
MDFLD_MSG_WRITE32(uint port,uint offset,u32 value)811 static inline void MDFLD_MSG_WRITE32(uint port, uint offset, u32 value)
812 {
813 	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
814 	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
815 	pci_write_config_dword(pci_root, 0xD4, value);
816 	pci_write_config_dword(pci_root, 0xD0, mcr);
817 	pci_dev_put(pci_root);
818 }
819 
REGISTER_READ(struct drm_device * dev,uint32_t reg)820 static inline uint32_t REGISTER_READ(struct drm_device *dev, uint32_t reg)
821 {
822 	struct drm_psb_private *dev_priv = dev->dev_private;
823 	return ioread32(dev_priv->vdc_reg + reg);
824 }
825 
REGISTER_READ_AUX(struct drm_device * dev,uint32_t reg)826 static inline uint32_t REGISTER_READ_AUX(struct drm_device *dev, uint32_t reg)
827 {
828 	struct drm_psb_private *dev_priv = dev->dev_private;
829 	return ioread32(dev_priv->aux_reg + reg);
830 }
831 
832 #define REG_READ(reg)	       REGISTER_READ(dev, (reg))
833 #define REG_READ_AUX(reg)      REGISTER_READ_AUX(dev, (reg))
834 
835 /* Useful for post reads */
REGISTER_READ_WITH_AUX(struct drm_device * dev,uint32_t reg,int aux)836 static inline uint32_t REGISTER_READ_WITH_AUX(struct drm_device *dev,
837 					      uint32_t reg, int aux)
838 {
839 	uint32_t val;
840 
841 	if (aux)
842 		val = REG_READ_AUX(reg);
843 	else
844 		val = REG_READ(reg);
845 
846 	return val;
847 }
848 
849 #define REG_READ_WITH_AUX(reg, aux) REGISTER_READ_WITH_AUX(dev, (reg), (aux))
850 
REGISTER_WRITE(struct drm_device * dev,uint32_t reg,uint32_t val)851 static inline void REGISTER_WRITE(struct drm_device *dev, uint32_t reg,
852 				  uint32_t val)
853 {
854 	struct drm_psb_private *dev_priv = dev->dev_private;
855 	iowrite32((val), dev_priv->vdc_reg + (reg));
856 }
857 
REGISTER_WRITE_AUX(struct drm_device * dev,uint32_t reg,uint32_t val)858 static inline void REGISTER_WRITE_AUX(struct drm_device *dev, uint32_t reg,
859 				      uint32_t val)
860 {
861 	struct drm_psb_private *dev_priv = dev->dev_private;
862 	iowrite32((val), dev_priv->aux_reg + (reg));
863 }
864 
865 #define REG_WRITE(reg, val)	REGISTER_WRITE(dev, (reg), (val))
866 #define REG_WRITE_AUX(reg, val)	REGISTER_WRITE_AUX(dev, (reg), (val))
867 
REGISTER_WRITE_WITH_AUX(struct drm_device * dev,uint32_t reg,uint32_t val,int aux)868 static inline void REGISTER_WRITE_WITH_AUX(struct drm_device *dev, uint32_t reg,
869 				      uint32_t val, int aux)
870 {
871 	if (aux)
872 		REG_WRITE_AUX(reg, val);
873 	else
874 		REG_WRITE(reg, val);
875 }
876 
877 #define REG_WRITE_WITH_AUX(reg, val, aux) REGISTER_WRITE_WITH_AUX(dev, (reg), (val), (aux))
878 
REGISTER_WRITE16(struct drm_device * dev,uint32_t reg,uint32_t val)879 static inline void REGISTER_WRITE16(struct drm_device *dev,
880 					uint32_t reg, uint32_t val)
881 {
882 	struct drm_psb_private *dev_priv = dev->dev_private;
883 	iowrite16((val), dev_priv->vdc_reg + (reg));
884 }
885 
886 #define REG_WRITE16(reg, val)	  REGISTER_WRITE16(dev, (reg), (val))
887 
REGISTER_WRITE8(struct drm_device * dev,uint32_t reg,uint32_t val)888 static inline void REGISTER_WRITE8(struct drm_device *dev,
889 				       uint32_t reg, uint32_t val)
890 {
891 	struct drm_psb_private *dev_priv = dev->dev_private;
892 	iowrite8((val), dev_priv->vdc_reg + (reg));
893 }
894 
895 #define REG_WRITE8(reg, val)		REGISTER_WRITE8(dev, (reg), (val))
896 
897 #define PSB_WVDC32(_val, _offs)		iowrite32(_val, dev_priv->vdc_reg + (_offs))
898 #define PSB_RVDC32(_offs)		ioread32(dev_priv->vdc_reg + (_offs))
899 
900 /* #define TRAP_SGX_PM_FAULT 1 */
901 #ifdef TRAP_SGX_PM_FAULT
902 #define PSB_RSGX32(_offs)						\
903 ({									\
904 	if (inl(dev_priv->apm_base + PSB_APM_STS) & 0x3) {		\
905 		printk(KERN_ERR						\
906 			"access sgx when it's off!! (READ) %s, %d\n",	\
907 	       __FILE__, __LINE__);					\
908 		melay(1000);						\
909 	}								\
910 	ioread32(dev_priv->sgx_reg + (_offs));				\
911 })
912 #else
913 #define PSB_RSGX32(_offs)		ioread32(dev_priv->sgx_reg + (_offs))
914 #endif
915 #define PSB_WSGX32(_val, _offs)		iowrite32(_val, dev_priv->sgx_reg + (_offs))
916 
917 #define MSVDX_REG_DUMP 0
918 
919 #define PSB_WMSVDX32(_val, _offs)	iowrite32(_val, dev_priv->msvdx_reg + (_offs))
920 #define PSB_RMSVDX32(_offs)		ioread32(dev_priv->msvdx_reg + (_offs))
921 
922 #endif
923