xref: /openbmc/linux/drivers/gpu/drm/gma500/psb_drv.h (revision 1960e9e9)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /**************************************************************************
3  * Copyright (c) 2007-2011, Intel Corporation.
4  * All Rights Reserved.
5  *
6  **************************************************************************/
7 
8 #ifndef _PSB_DRV_H_
9 #define _PSB_DRV_H_
10 
11 #include <linux/kref.h>
12 #include <linux/mm_types.h>
13 
14 #include <drm/drm_device.h>
15 
16 #include "gtt.h"
17 #include "intel_bios.h"
18 #include "mmu.h"
19 #include "oaktrail.h"
20 #include "opregion.h"
21 #include "power.h"
22 #include "psb_intel_drv.h"
23 #include "psb_reg.h"
24 
25 #define DRIVER_AUTHOR "Alan Cox <alan@linux.intel.com> and others"
26 
27 #define DRIVER_NAME "gma500"
28 #define DRIVER_DESC "DRM driver for the Intel GMA500, GMA600, GMA3600, GMA3650"
29 #define DRIVER_DATE "20140314"
30 
31 #define DRIVER_MAJOR 1
32 #define DRIVER_MINOR 0
33 #define DRIVER_PATCHLEVEL 0
34 
35 /* Append new drm mode definition here, align with libdrm definition */
36 #define DRM_MODE_SCALE_NO_SCALE   	2
37 
38 #define IS_PSB(drm) ((to_pci_dev((drm)->dev)->device & 0xfffe) == 0x8108)
39 #define IS_MRST(drm) ((to_pci_dev((drm)->dev)->device & 0xfff0) == 0x4100)
40 #define IS_CDV(drm) ((to_pci_dev((drm)->dev)->device & 0xfff0) == 0x0be0)
41 
42 /* Hardware offsets */
43 #define PSB_VDC_OFFSET		 0x00000000
44 #define PSB_VDC_SIZE		 0x000080000
45 #define MRST_MMIO_SIZE		 0x0000C0000
46 #define PSB_SGX_SIZE		 0x8000
47 #define PSB_SGX_OFFSET		 0x00040000
48 #define MRST_SGX_OFFSET		 0x00080000
49 
50 /* PCI resource identifiers */
51 #define PSB_MMIO_RESOURCE	 0
52 #define PSB_AUX_RESOURCE	 0
53 #define PSB_GATT_RESOURCE	 2
54 #define PSB_GTT_RESOURCE	 3
55 
56 /* PCI configuration */
57 #define PSB_GMCH_CTRL		 0x52
58 #define PSB_BSM			 0x5C
59 #define _PSB_GMCH_ENABLED	 0x4
60 #define PSB_PGETBL_CTL		 0x2020
61 #define _PSB_PGETBL_ENABLED	 0x00000001
62 #define PSB_SGX_2D_SLAVE_PORT	 0x4000
63 #define PSB_LPC_GBA		 0x44
64 
65 /* TODO: To get rid of */
66 #define PSB_TT_PRIV0_LIMIT	 (256*1024*1024)
67 #define PSB_TT_PRIV0_PLIMIT	 (PSB_TT_PRIV0_LIMIT >> PAGE_SHIFT)
68 
69 /* SGX side MMU definitions (these can probably go) */
70 
71 /* Flags for external memory type field */
72 #define PSB_MMU_CACHED_MEMORY	  0x0001	/* Bind to MMU only */
73 #define PSB_MMU_RO_MEMORY	  0x0002	/* MMU RO memory */
74 #define PSB_MMU_WO_MEMORY	  0x0004	/* MMU WO memory */
75 
76 /* PTE's and PDE's */
77 #define PSB_PDE_MASK		  0x003FFFFF
78 #define PSB_PDE_SHIFT		  22
79 #define PSB_PTE_SHIFT		  12
80 
81 /* Cache control */
82 #define PSB_PTE_VALID		  0x0001	/* PTE / PDE valid */
83 #define PSB_PTE_WO		  0x0002	/* Write only */
84 #define PSB_PTE_RO		  0x0004	/* Read only */
85 #define PSB_PTE_CACHED		  0x0008	/* CPU cache coherent */
86 
87 /* VDC registers and bits */
88 #define PSB_MSVDX_CLOCKGATING	  0x2064
89 #define PSB_TOPAZ_CLOCKGATING	  0x2068
90 #define PSB_HWSTAM		  0x2098
91 #define PSB_INSTPM		  0x20C0
92 #define PSB_INT_IDENTITY_R        0x20A4
93 #define _PSB_IRQ_ASLE		  (1<<0)
94 #define _MDFLD_PIPEC_EVENT_FLAG   (1<<2)
95 #define _MDFLD_PIPEC_VBLANK_FLAG  (1<<3)
96 #define _PSB_DPST_PIPEB_FLAG      (1<<4)
97 #define _MDFLD_PIPEB_EVENT_FLAG   (1<<4)
98 #define _PSB_VSYNC_PIPEB_FLAG	  (1<<5)
99 #define _PSB_DPST_PIPEA_FLAG      (1<<6)
100 #define _PSB_PIPEA_EVENT_FLAG     (1<<6)
101 #define _PSB_VSYNC_PIPEA_FLAG	  (1<<7)
102 #define _PSB_IRQ_DISP_HOTSYNC	  (1<<17)
103 #define _PSB_IRQ_SGX_FLAG	  (1<<18)
104 #define _PSB_IRQ_MSVDX_FLAG	  (1<<19)
105 #define _LNC_IRQ_TOPAZ_FLAG	  (1<<20)
106 
107 #define _PSB_PIPE_EVENT_FLAG	(_PSB_VSYNC_PIPEA_FLAG | \
108 				 _PSB_VSYNC_PIPEB_FLAG)
109 
110 #define PSB_INT_IDENTITY_R	  0x20A4
111 #define PSB_INT_MASK_R		  0x20A8
112 #define PSB_INT_ENABLE_R	  0x20A0
113 
114 #define _PSB_MMU_ER_MASK      0x0001FF00
115 #define _PSB_MMU_ER_HOST      (1 << 16)
116 #define GPIOA			0x5010
117 #define GPIOB			0x5014
118 #define GPIOC			0x5018
119 #define GPIOD			0x501c
120 #define GPIOE			0x5020
121 #define GPIOF			0x5024
122 #define GPIOG			0x5028
123 #define GPIOH			0x502c
124 #define GPIO_CLOCK_DIR_MASK		(1 << 0)
125 #define GPIO_CLOCK_DIR_IN		(0 << 1)
126 #define GPIO_CLOCK_DIR_OUT		(1 << 1)
127 #define GPIO_CLOCK_VAL_MASK		(1 << 2)
128 #define GPIO_CLOCK_VAL_OUT		(1 << 3)
129 #define GPIO_CLOCK_VAL_IN		(1 << 4)
130 #define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
131 #define GPIO_DATA_DIR_MASK		(1 << 8)
132 #define GPIO_DATA_DIR_IN		(0 << 9)
133 #define GPIO_DATA_DIR_OUT		(1 << 9)
134 #define GPIO_DATA_VAL_MASK		(1 << 10)
135 #define GPIO_DATA_VAL_OUT		(1 << 11)
136 #define GPIO_DATA_VAL_IN		(1 << 12)
137 #define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
138 
139 #define VCLK_DIVISOR_VGA0   0x6000
140 #define VCLK_DIVISOR_VGA1   0x6004
141 #define VCLK_POST_DIV	    0x6010
142 
143 #define PSB_COMM_2D (PSB_ENGINE_2D << 4)
144 #define PSB_COMM_3D (PSB_ENGINE_3D << 4)
145 #define PSB_COMM_TA (PSB_ENGINE_TA << 4)
146 #define PSB_COMM_HP (PSB_ENGINE_HP << 4)
147 #define PSB_COMM_USER_IRQ (1024 >> 2)
148 #define PSB_COMM_USER_IRQ_LOST (PSB_COMM_USER_IRQ + 1)
149 #define PSB_COMM_FW (2048 >> 2)
150 
151 #define PSB_UIRQ_VISTEST	       1
152 #define PSB_UIRQ_OOM_REPLY	       2
153 #define PSB_UIRQ_FIRE_TA_REPLY	       3
154 #define PSB_UIRQ_FIRE_RASTER_REPLY     4
155 
156 #define PSB_2D_SIZE (256*1024*1024)
157 #define PSB_MAX_RELOC_PAGES 1024
158 
159 #define PSB_LOW_REG_OFFS 0x0204
160 #define PSB_HIGH_REG_OFFS 0x0600
161 
162 #define PSB_NUM_VBLANKS 2
163 
164 
165 #define PSB_2D_SIZE (256*1024*1024)
166 #define PSB_MAX_RELOC_PAGES 1024
167 
168 #define PSB_LOW_REG_OFFS 0x0204
169 #define PSB_HIGH_REG_OFFS 0x0600
170 
171 #define PSB_NUM_VBLANKS 2
172 #define PSB_WATCHDOG_DELAY (HZ * 2)
173 
174 #define PSB_MAX_BRIGHTNESS		100
175 
176 #define PSB_PWR_STATE_ON		1
177 #define PSB_PWR_STATE_OFF		2
178 
179 #define PSB_PMPOLICY_NOPM		0
180 #define PSB_PMPOLICY_CLOCKGATING	1
181 #define PSB_PMPOLICY_POWERDOWN		2
182 
183 #define PSB_PMSTATE_POWERUP		0
184 #define PSB_PMSTATE_CLOCKGATED		1
185 #define PSB_PMSTATE_POWERDOWN		2
186 #define PSB_PCIx_MSI_ADDR_LOC		0x94
187 #define PSB_PCIx_MSI_DATA_LOC		0x98
188 
189 /* Medfield crystal settings */
190 #define KSEL_CRYSTAL_19 1
191 #define KSEL_BYPASS_19 5
192 #define KSEL_BYPASS_25 6
193 #define KSEL_BYPASS_83_100 7
194 
195 struct opregion_header;
196 struct opregion_acpi;
197 struct opregion_swsci;
198 struct opregion_asle;
199 
200 struct psb_intel_opregion {
201 	struct opregion_header *header;
202 	struct opregion_acpi *acpi;
203 	struct opregion_swsci *swsci;
204 	struct opregion_asle *asle;
205 	void *vbt;
206 	u32 __iomem *lid_state;
207 	struct work_struct asle_work;
208 };
209 
210 struct sdvo_device_mapping {
211 	u8 initialized;
212 	u8 dvo_port;
213 	u8 slave_addr;
214 	u8 dvo_wiring;
215 	u8 i2c_pin;
216 	u8 i2c_speed;
217 	u8 ddc_pin;
218 };
219 
220 struct intel_gmbus {
221 	struct i2c_adapter adapter;
222 	struct i2c_adapter *force_bit;
223 	u32 reg0;
224 };
225 
226 /* Register offset maps */
227 struct psb_offset {
228 	u32	fp0;
229 	u32	fp1;
230 	u32	cntr;
231 	u32	conf;
232 	u32	src;
233 	u32	dpll;
234 	u32	dpll_md;
235 	u32	htotal;
236 	u32	hblank;
237 	u32	hsync;
238 	u32	vtotal;
239 	u32	vblank;
240 	u32	vsync;
241 	u32	stride;
242 	u32	size;
243 	u32	pos;
244 	u32	surf;
245 	u32	addr;
246 	u32	base;
247 	u32	status;
248 	u32	linoff;
249 	u32	tileoff;
250 	u32	palette;
251 };
252 
253 /*
254  *	Register save state. This is used to hold the context when the
255  *	device is powered off. In the case of Oaktrail this can (but does not
256  *	yet) include screen blank. Operations occuring during the save
257  *	update the register cache instead.
258  */
259 
260 /* Common status for pipes */
261 struct psb_pipe {
262 	u32	fp0;
263 	u32	fp1;
264 	u32	cntr;
265 	u32	conf;
266 	u32	src;
267 	u32	dpll;
268 	u32	dpll_md;
269 	u32	htotal;
270 	u32	hblank;
271 	u32	hsync;
272 	u32	vtotal;
273 	u32	vblank;
274 	u32	vsync;
275 	u32	stride;
276 	u32	size;
277 	u32	pos;
278 	u32	base;
279 	u32	surf;
280 	u32	addr;
281 	u32	status;
282 	u32	linoff;
283 	u32	tileoff;
284 	u32	palette[256];
285 };
286 
287 struct psb_state {
288 	uint32_t saveVCLK_DIVISOR_VGA0;
289 	uint32_t saveVCLK_DIVISOR_VGA1;
290 	uint32_t saveVCLK_POST_DIV;
291 	uint32_t saveVGACNTRL;
292 	uint32_t saveADPA;
293 	uint32_t saveLVDS;
294 	uint32_t saveDVOA;
295 	uint32_t saveDVOB;
296 	uint32_t saveDVOC;
297 	uint32_t savePP_ON;
298 	uint32_t savePP_OFF;
299 	uint32_t savePP_CONTROL;
300 	uint32_t savePP_CYCLE;
301 	uint32_t savePFIT_CONTROL;
302 	uint32_t saveCLOCKGATING;
303 	uint32_t saveDSPARB;
304 	uint32_t savePFIT_AUTO_RATIOS;
305 	uint32_t savePFIT_PGM_RATIOS;
306 	uint32_t savePP_ON_DELAYS;
307 	uint32_t savePP_OFF_DELAYS;
308 	uint32_t savePP_DIVISOR;
309 	uint32_t saveBCLRPAT_A;
310 	uint32_t saveBCLRPAT_B;
311 	uint32_t savePERF_MODE;
312 	uint32_t saveDSPFW1;
313 	uint32_t saveDSPFW2;
314 	uint32_t saveDSPFW3;
315 	uint32_t saveDSPFW4;
316 	uint32_t saveDSPFW5;
317 	uint32_t saveDSPFW6;
318 	uint32_t saveCHICKENBIT;
319 	uint32_t saveDSPACURSOR_CTRL;
320 	uint32_t saveDSPBCURSOR_CTRL;
321 	uint32_t saveDSPACURSOR_BASE;
322 	uint32_t saveDSPBCURSOR_BASE;
323 	uint32_t saveDSPACURSOR_POS;
324 	uint32_t saveDSPBCURSOR_POS;
325 	uint32_t saveOV_OVADD;
326 	uint32_t saveOV_OGAMC0;
327 	uint32_t saveOV_OGAMC1;
328 	uint32_t saveOV_OGAMC2;
329 	uint32_t saveOV_OGAMC3;
330 	uint32_t saveOV_OGAMC4;
331 	uint32_t saveOV_OGAMC5;
332 	uint32_t saveOVC_OVADD;
333 	uint32_t saveOVC_OGAMC0;
334 	uint32_t saveOVC_OGAMC1;
335 	uint32_t saveOVC_OGAMC2;
336 	uint32_t saveOVC_OGAMC3;
337 	uint32_t saveOVC_OGAMC4;
338 	uint32_t saveOVC_OGAMC5;
339 
340 	/* DPST register save */
341 	uint32_t saveHISTOGRAM_INT_CONTROL_REG;
342 	uint32_t saveHISTOGRAM_LOGIC_CONTROL_REG;
343 	uint32_t savePWM_CONTROL_LOGIC;
344 };
345 
346 struct cdv_state {
347 	uint32_t saveDSPCLK_GATE_D;
348 	uint32_t saveRAMCLK_GATE_D;
349 	uint32_t saveDSPARB;
350 	uint32_t saveDSPFW[6];
351 	uint32_t saveADPA;
352 	uint32_t savePP_CONTROL;
353 	uint32_t savePFIT_PGM_RATIOS;
354 	uint32_t saveLVDS;
355 	uint32_t savePFIT_CONTROL;
356 	uint32_t savePP_ON_DELAYS;
357 	uint32_t savePP_OFF_DELAYS;
358 	uint32_t savePP_CYCLE;
359 	uint32_t saveVGACNTRL;
360 	uint32_t saveIER;
361 	uint32_t saveIMR;
362 	u8	 saveLBB;
363 };
364 
365 struct psb_save_area {
366 	struct psb_pipe pipe[3];
367 	uint32_t saveBSM;
368 	uint32_t saveVBT;
369 	union {
370 	        struct psb_state psb;
371 		struct cdv_state cdv;
372 	};
373 	uint32_t saveBLC_PWM_CTL2;
374 	uint32_t saveBLC_PWM_CTL;
375 };
376 
377 struct psb_ops;
378 
379 #define PSB_NUM_PIPE		3
380 
381 struct intel_scu_ipc_dev;
382 
383 struct drm_psb_private {
384 	struct drm_device dev;
385 
386 	struct pci_dev *aux_pdev; /* Currently only used by mrst */
387 	struct pci_dev *lpc_pdev; /* Currently only used by mrst */
388 	const struct psb_ops *ops;
389 	const struct psb_offset *regmap;
390 
391 	struct child_device_config *child_dev;
392 	int child_dev_num;
393 
394 	struct psb_gtt gtt;
395 
396 	/* GTT Memory manager */
397 	struct psb_gtt_mm *gtt_mm;
398 	struct page *scratch_page;
399 	u32 __iomem *gtt_map;
400 	uint32_t stolen_base;
401 	u8 __iomem *vram_addr;
402 	unsigned long vram_stolen_size;
403 	u16 gmch_ctrl;		/* Saved GTT setup */
404 	u32 pge_ctl;
405 
406 	struct mutex gtt_mutex;
407 	struct resource *gtt_mem;	/* Our PCI resource */
408 
409 	struct mutex mmap_mutex;
410 
411 	struct psb_mmu_driver *mmu;
412 	struct psb_mmu_pd *pf_pd;
413 
414 	/* Register base */
415 	uint8_t __iomem *sgx_reg;
416 	uint8_t __iomem *vdc_reg;
417 	uint8_t __iomem *aux_reg; /* Auxillary vdc pipe regs */
418 	uint16_t lpc_gpio_base;
419 	uint32_t gatt_free_offset;
420 
421 	/* Fencing / irq */
422 	uint32_t vdc_irq_mask;
423 	uint32_t pipestat[PSB_NUM_PIPE];
424 
425 	spinlock_t irqmask_lock;
426 	bool irq_enabled;
427 
428 	/* Power */
429 	bool pm_initialized;
430 
431 	/* Modesetting */
432 	struct psb_intel_mode_device mode_dev;
433 	bool modeset;	/* true if we have done the mode_device setup */
434 
435 	struct drm_crtc *plane_to_crtc_mapping[PSB_NUM_PIPE];
436 	struct drm_crtc *pipe_to_crtc_mapping[PSB_NUM_PIPE];
437 	uint32_t num_pipe;
438 
439 	/* OSPM info (Power management base) (TODO: can go ?) */
440 	uint32_t ospm_base;
441 
442 	/* Sizes info */
443 	u32 fuse_reg_value;
444 	u32 video_device_fuse;
445 
446 	/* PCI revision ID for B0:D2:F0 */
447 	uint8_t platform_rev_id;
448 
449 	/* gmbus */
450 	struct intel_gmbus *gmbus;
451 	uint8_t __iomem *gmbus_reg;
452 
453 	/* Used by SDVO */
454 	int crt_ddc_pin;
455 	/* FIXME: The mappings should be parsed from bios but for now we can
456 		  pretend there are no mappings available */
457 	struct sdvo_device_mapping sdvo_mappings[2];
458 	u32 hotplug_supported_mask;
459 	struct drm_property *broadcast_rgb_property;
460 	struct drm_property *force_audio_property;
461 
462 	/* LVDS info */
463 	int backlight_duty_cycle;	/* restore backlight to this value */
464 	bool panel_wants_dither;
465 	struct drm_display_mode *panel_fixed_mode;
466 	struct drm_display_mode *lfp_lvds_vbt_mode;
467 	struct drm_display_mode *sdvo_lvds_vbt_mode;
468 
469 	struct bdb_lvds_backlight *lvds_bl; /* LVDS backlight info from VBT */
470 	struct gma_i2c_chan *lvds_i2c_bus; /* FIXME: Remove this? */
471 
472 	/* Feature bits from the VBIOS */
473 	unsigned int int_tv_support:1;
474 	unsigned int lvds_dither:1;
475 	unsigned int lvds_vbt:1;
476 	unsigned int int_crt_support:1;
477 	unsigned int lvds_use_ssc:1;
478 	int lvds_ssc_freq;
479 	bool is_lvds_on;
480 	bool is_mipi_on;
481 	bool lvds_enabled_in_vbt;
482 	u32 mipi_ctrl_display;
483 
484 	unsigned int core_freq;
485 	uint32_t iLVDS_enable;
486 
487 	/* MID specific */
488 	bool use_msi;
489 	bool has_gct;
490 	struct oaktrail_gct_data gct_data;
491 
492 	/* Oaktrail HDMI state */
493 	struct oaktrail_hdmi_dev *hdmi_priv;
494 
495 	/* Register state */
496 	struct psb_save_area regs;
497 
498 	/* Hotplug handling */
499 	struct work_struct hotplug_work;
500 
501 	struct psb_intel_opregion opregion;
502 
503 	/* Watchdog */
504 	uint32_t apm_reg;
505 	uint16_t apm_base;
506 
507 	/*
508 	 * Used for modifying backlight from
509 	 * xrandr -- consider removing and using HAL instead
510 	 */
511 	struct intel_scu_ipc_dev *scu;
512 	struct backlight_device *backlight_device;
513 	struct drm_property *backlight_property;
514 	bool backlight_enabled;
515 	int backlight_level;
516 	uint32_t blc_adj1;
517 	uint32_t blc_adj2;
518 
519 	bool dsr_enable;
520 	u32 dsr_fb_update;
521 	bool dpi_panel_on[3];
522 	void *dsi_configs[2];
523 	u32 bpp;
524 	u32 bpp2;
525 
526 	u32 pipeconf[3];
527 	u32 dspcntr[3];
528 
529 	bool dplla_96mhz;	/* DPLL data from the VBT */
530 
531 	struct {
532 		int rate;
533 		int lanes;
534 		int preemphasis;
535 		int vswing;
536 
537 		bool initialized;
538 		bool support;
539 		int bpp;
540 		struct edp_power_seq pps;
541 	} edp;
542 	uint8_t panel_type;
543 };
544 
to_drm_psb_private(struct drm_device * dev)545 static inline struct drm_psb_private *to_drm_psb_private(struct drm_device *dev)
546 {
547 	return container_of(dev, struct drm_psb_private, dev);
548 }
549 
550 /* Operations for each board type */
551 struct psb_ops {
552 	const char *name;
553 	int pipes;		/* Number of output pipes */
554 	int crtcs;		/* Number of CRTCs */
555 	int sgx_offset;		/* Base offset of SGX device */
556 	int hdmi_mask;		/* Mask of HDMI CRTCs */
557 	int lvds_mask;		/* Mask of LVDS CRTCs */
558 	int sdvo_mask;		/* Mask of SDVO CRTCs */
559 	int cursor_needs_phys;  /* If cursor base reg need physical address */
560 
561 	/* Sub functions */
562 	struct drm_crtc_helper_funcs const *crtc_helper;
563 	const struct gma_clock_funcs *clock_funcs;
564 
565 	/* Setup hooks */
566 	int (*chip_setup)(struct drm_device *dev);
567 	void (*chip_teardown)(struct drm_device *dev);
568 	/* Optional helper caller after modeset */
569 	void (*errata)(struct drm_device *dev);
570 
571 	/* Display management hooks */
572 	int (*output_init)(struct drm_device *dev);
573 	int (*hotplug)(struct drm_device *dev);
574 	void (*hotplug_enable)(struct drm_device *dev, bool on);
575 	/* Power management hooks */
576 	void (*init_pm)(struct drm_device *dev);
577 	int (*save_regs)(struct drm_device *dev);
578 	int (*restore_regs)(struct drm_device *dev);
579 	void (*save_crtc)(struct drm_crtc *crtc);
580 	void (*restore_crtc)(struct drm_crtc *crtc);
581 	int (*power_up)(struct drm_device *dev);
582 	int (*power_down)(struct drm_device *dev);
583 	void (*update_wm)(struct drm_device *dev, struct drm_crtc *crtc);
584 	void (*disable_sr)(struct drm_device *dev);
585 
586 	void (*lvds_bl_power)(struct drm_device *dev, bool on);
587 
588 	/* Backlight */
589 	int (*backlight_init)(struct drm_device *dev);
590 	void (*backlight_set)(struct drm_device *dev, int level);
591 	int (*backlight_get)(struct drm_device *dev);
592 	const char *backlight_name;
593 
594 	int i2c_bus;		/* I2C bus identifier for Moorestown */
595 };
596 
597 /* modesetting */
598 extern void psb_modeset_init(struct drm_device *dev);
599 extern void psb_modeset_cleanup(struct drm_device *dev);
600 
601 /* framebuffer */
602 struct drm_framebuffer *psb_framebuffer_create(struct drm_device *dev,
603 					       const struct drm_mode_fb_cmd2 *mode_cmd,
604 					       struct drm_gem_object *obj);
605 
606 /* fbdev */
607 #if defined(CONFIG_DRM_FBDEV_EMULATION)
608 void psb_fbdev_setup(struct drm_psb_private *dev_priv);
609 #else
psb_fbdev_setup(struct drm_psb_private * dev_priv)610 static inline void psb_fbdev_setup(struct drm_psb_private *dev_priv)
611 { }
612 #endif
613 
614 /* backlight.c */
615 int gma_backlight_init(struct drm_device *dev);
616 void gma_backlight_exit(struct drm_device *dev);
617 void gma_backlight_disable(struct drm_device *dev);
618 void gma_backlight_enable(struct drm_device *dev);
619 void gma_backlight_set(struct drm_device *dev, int v);
620 
621 /* oaktrail_crtc.c */
622 extern const struct drm_crtc_helper_funcs oaktrail_helper_funcs;
623 
624 /* oaktrail_lvds.c */
625 extern void oaktrail_lvds_init(struct drm_device *dev,
626 		    struct psb_intel_mode_device *mode_dev);
627 
628 /* psb_intel_display.c */
629 extern const struct drm_crtc_helper_funcs psb_intel_helper_funcs;
630 
631 /* psb_intel_lvds.c */
632 extern const struct drm_connector_helper_funcs
633 					psb_intel_lvds_connector_helper_funcs;
634 extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
635 
636 /* gem.c */
637 extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
638 			struct drm_mode_create_dumb *args);
639 
640 /* psb_device.c */
641 extern const struct psb_ops psb_chip_ops;
642 
643 /* oaktrail_device.c */
644 extern const struct psb_ops oaktrail_chip_ops;
645 
646 /* cdv_device.c */
647 extern const struct psb_ops cdv_chip_ops;
648 
649 /* Utilities */
REGISTER_READ(struct drm_device * dev,uint32_t reg)650 static inline uint32_t REGISTER_READ(struct drm_device *dev, uint32_t reg)
651 {
652 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
653 	return ioread32(dev_priv->vdc_reg + reg);
654 }
655 
REGISTER_READ_AUX(struct drm_device * dev,uint32_t reg)656 static inline uint32_t REGISTER_READ_AUX(struct drm_device *dev, uint32_t reg)
657 {
658 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
659 	return ioread32(dev_priv->aux_reg + reg);
660 }
661 
662 #define REG_READ(reg)	       REGISTER_READ(dev, (reg))
663 #define REG_READ_AUX(reg)      REGISTER_READ_AUX(dev, (reg))
664 
665 /* Useful for post reads */
REGISTER_READ_WITH_AUX(struct drm_device * dev,uint32_t reg,int aux)666 static inline uint32_t REGISTER_READ_WITH_AUX(struct drm_device *dev,
667 					      uint32_t reg, int aux)
668 {
669 	uint32_t val;
670 
671 	if (aux)
672 		val = REG_READ_AUX(reg);
673 	else
674 		val = REG_READ(reg);
675 
676 	return val;
677 }
678 
679 #define REG_READ_WITH_AUX(reg, aux) REGISTER_READ_WITH_AUX(dev, (reg), (aux))
680 
REGISTER_WRITE(struct drm_device * dev,uint32_t reg,uint32_t val)681 static inline void REGISTER_WRITE(struct drm_device *dev, uint32_t reg,
682 				  uint32_t val)
683 {
684 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
685 	iowrite32((val), dev_priv->vdc_reg + (reg));
686 }
687 
REGISTER_WRITE_AUX(struct drm_device * dev,uint32_t reg,uint32_t val)688 static inline void REGISTER_WRITE_AUX(struct drm_device *dev, uint32_t reg,
689 				      uint32_t val)
690 {
691 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
692 	iowrite32((val), dev_priv->aux_reg + (reg));
693 }
694 
695 #define REG_WRITE(reg, val)	REGISTER_WRITE(dev, (reg), (val))
696 #define REG_WRITE_AUX(reg, val)	REGISTER_WRITE_AUX(dev, (reg), (val))
697 
REGISTER_WRITE_WITH_AUX(struct drm_device * dev,uint32_t reg,uint32_t val,int aux)698 static inline void REGISTER_WRITE_WITH_AUX(struct drm_device *dev, uint32_t reg,
699 				      uint32_t val, int aux)
700 {
701 	if (aux)
702 		REG_WRITE_AUX(reg, val);
703 	else
704 		REG_WRITE(reg, val);
705 }
706 
707 #define REG_WRITE_WITH_AUX(reg, val, aux) REGISTER_WRITE_WITH_AUX(dev, (reg), (val), (aux))
708 
REGISTER_WRITE16(struct drm_device * dev,uint32_t reg,uint32_t val)709 static inline void REGISTER_WRITE16(struct drm_device *dev,
710 					uint32_t reg, uint32_t val)
711 {
712 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
713 	iowrite16((val), dev_priv->vdc_reg + (reg));
714 }
715 
716 #define REG_WRITE16(reg, val)	  REGISTER_WRITE16(dev, (reg), (val))
717 
REGISTER_WRITE8(struct drm_device * dev,uint32_t reg,uint32_t val)718 static inline void REGISTER_WRITE8(struct drm_device *dev,
719 				       uint32_t reg, uint32_t val)
720 {
721 	struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
722 	iowrite8((val), dev_priv->vdc_reg + (reg));
723 }
724 
725 #define REG_WRITE8(reg, val)		REGISTER_WRITE8(dev, (reg), (val))
726 
727 #define PSB_WVDC32(_val, _offs)		iowrite32(_val, dev_priv->vdc_reg + (_offs))
728 #define PSB_RVDC32(_offs)		ioread32(dev_priv->vdc_reg + (_offs))
729 
730 #define PSB_RSGX32(_offs)		ioread32(dev_priv->sgx_reg + (_offs))
731 #define PSB_WSGX32(_val, _offs)		iowrite32(_val, dev_priv->sgx_reg + (_offs))
732 
733 #define PSB_WMSVDX32(_val, _offs)	iowrite32(_val, dev_priv->msvdx_reg + (_offs))
734 #define PSB_RMSVDX32(_offs)		ioread32(dev_priv->msvdx_reg + (_offs))
735 
736 #endif
737