1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /**************************************************************************
3 * Copyright (c) 2007-2011, Intel Corporation.
6 **************************************************************************/
11 #include <linux/kref.h>
12 #include <linux/mm_types.h>
14 #include <drm/drm_device.h>
17 #include "intel_bios.h"
22 #include "psb_intel_drv.h"
25 #define DRIVER_AUTHOR "Alan Cox <alan@linux.intel.com> and others"
27 #define DRIVER_NAME "gma500"
28 #define DRIVER_DESC "DRM driver for the Intel GMA500, GMA600, GMA3600, GMA3650"
29 #define DRIVER_DATE "20140314"
31 #define DRIVER_MAJOR 1
32 #define DRIVER_MINOR 0
33 #define DRIVER_PATCHLEVEL 0
35 /* Append new drm mode definition here, align with libdrm definition */
36 #define DRM_MODE_SCALE_NO_SCALE 2
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)
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
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
56 /* PCI configuration */
57 #define PSB_GMCH_CTRL 0x52
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
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)
69 /* SGX side MMU definitions (these can probably go) */
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 */
77 #define PSB_PDE_MASK 0x003FFFFF
78 #define PSB_PDE_SHIFT 22
79 #define PSB_PTE_SHIFT 12
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 */
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)
107 #define _PSB_PIPE_EVENT_FLAG (_PSB_VSYNC_PIPEA_FLAG | \
108 _PSB_VSYNC_PIPEB_FLAG)
110 #define PSB_INT_IDENTITY_R 0x20A4
111 #define PSB_INT_MASK_R 0x20A8
112 #define PSB_INT_ENABLE_R 0x20A0
114 #define _PSB_MMU_ER_MASK 0x0001FF00
115 #define _PSB_MMU_ER_HOST (1 << 16)
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)
139 #define VCLK_DIVISOR_VGA0 0x6000
140 #define VCLK_DIVISOR_VGA1 0x6004
141 #define VCLK_POST_DIV 0x6010
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)
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
156 #define PSB_2D_SIZE (256*1024*1024)
157 #define PSB_MAX_RELOC_PAGES 1024
159 #define PSB_LOW_REG_OFFS 0x0204
160 #define PSB_HIGH_REG_OFFS 0x0600
162 #define PSB_NUM_VBLANKS 2
165 #define PSB_2D_SIZE (256*1024*1024)
166 #define PSB_MAX_RELOC_PAGES 1024
168 #define PSB_LOW_REG_OFFS 0x0204
169 #define PSB_HIGH_REG_OFFS 0x0600
171 #define PSB_NUM_VBLANKS 2
172 #define PSB_WATCHDOG_DELAY (HZ * 2)
173 #define PSB_LID_DELAY (HZ / 10)
175 #define PSB_PWR_STATE_ON 1
176 #define PSB_PWR_STATE_OFF 2
178 #define PSB_PMPOLICY_NOPM 0
179 #define PSB_PMPOLICY_CLOCKGATING 1
180 #define PSB_PMPOLICY_POWERDOWN 2
182 #define PSB_PMSTATE_POWERUP 0
183 #define PSB_PMSTATE_CLOCKGATED 1
184 #define PSB_PMSTATE_POWERDOWN 2
185 #define PSB_PCIx_MSI_ADDR_LOC 0x94
186 #define PSB_PCIx_MSI_DATA_LOC 0x98
188 /* Medfield crystal settings */
189 #define KSEL_CRYSTAL_19 1
190 #define KSEL_BYPASS_19 5
191 #define KSEL_BYPASS_25 6
192 #define KSEL_BYPASS_83_100 7
194 struct drm_fb_helper;
196 struct opregion_header;
197 struct opregion_acpi;
198 struct opregion_swsci;
199 struct opregion_asle;
201 struct psb_intel_opregion {
202 struct opregion_header *header;
203 struct opregion_acpi *acpi;
204 struct opregion_swsci *swsci;
205 struct opregion_asle *asle;
207 u32 __iomem *lid_state;
208 struct work_struct asle_work;
211 struct sdvo_device_mapping {
222 struct i2c_adapter adapter;
223 struct i2c_adapter *force_bit;
227 /* Register offset maps */
255 * Register save state. This is used to hold the context when the
256 * device is powered off. In the case of Oaktrail this can (but does not
257 * yet) include screen blank. Operations occuring during the save
258 * update the register cache instead.
261 /* Common status for pipes */
289 uint32_t saveVCLK_DIVISOR_VGA0;
290 uint32_t saveVCLK_DIVISOR_VGA1;
291 uint32_t saveVCLK_POST_DIV;
292 uint32_t saveVGACNTRL;
300 uint32_t savePP_CONTROL;
301 uint32_t savePP_CYCLE;
302 uint32_t savePFIT_CONTROL;
303 uint32_t saveCLOCKGATING;
305 uint32_t savePFIT_AUTO_RATIOS;
306 uint32_t savePFIT_PGM_RATIOS;
307 uint32_t savePP_ON_DELAYS;
308 uint32_t savePP_OFF_DELAYS;
309 uint32_t savePP_DIVISOR;
310 uint32_t saveBCLRPAT_A;
311 uint32_t saveBCLRPAT_B;
312 uint32_t savePERF_MODE;
319 uint32_t saveCHICKENBIT;
320 uint32_t saveDSPACURSOR_CTRL;
321 uint32_t saveDSPBCURSOR_CTRL;
322 uint32_t saveDSPACURSOR_BASE;
323 uint32_t saveDSPBCURSOR_BASE;
324 uint32_t saveDSPACURSOR_POS;
325 uint32_t saveDSPBCURSOR_POS;
326 uint32_t saveOV_OVADD;
327 uint32_t saveOV_OGAMC0;
328 uint32_t saveOV_OGAMC1;
329 uint32_t saveOV_OGAMC2;
330 uint32_t saveOV_OGAMC3;
331 uint32_t saveOV_OGAMC4;
332 uint32_t saveOV_OGAMC5;
333 uint32_t saveOVC_OVADD;
334 uint32_t saveOVC_OGAMC0;
335 uint32_t saveOVC_OGAMC1;
336 uint32_t saveOVC_OGAMC2;
337 uint32_t saveOVC_OGAMC3;
338 uint32_t saveOVC_OGAMC4;
339 uint32_t saveOVC_OGAMC5;
341 /* DPST register save */
342 uint32_t saveHISTOGRAM_INT_CONTROL_REG;
343 uint32_t saveHISTOGRAM_LOGIC_CONTROL_REG;
344 uint32_t savePWM_CONTROL_LOGIC;
348 uint32_t saveDSPCLK_GATE_D;
349 uint32_t saveRAMCLK_GATE_D;
351 uint32_t saveDSPFW[6];
353 uint32_t savePP_CONTROL;
354 uint32_t savePFIT_PGM_RATIOS;
356 uint32_t savePFIT_CONTROL;
357 uint32_t savePP_ON_DELAYS;
358 uint32_t savePP_OFF_DELAYS;
359 uint32_t savePP_CYCLE;
360 uint32_t saveVGACNTRL;
366 struct psb_save_area {
367 struct psb_pipe pipe[3];
371 struct psb_state psb;
372 struct cdv_state cdv;
374 uint32_t saveBLC_PWM_CTL2;
375 uint32_t saveBLC_PWM_CTL;
380 #define PSB_NUM_PIPE 3
382 struct intel_scu_ipc_dev;
384 struct drm_psb_private {
385 struct drm_device dev;
387 struct pci_dev *aux_pdev; /* Currently only used by mrst */
388 struct pci_dev *lpc_pdev; /* Currently only used by mrst */
389 const struct psb_ops *ops;
390 const struct psb_offset *regmap;
392 struct child_device_config *child_dev;
397 /* GTT Memory manager */
398 struct psb_gtt_mm *gtt_mm;
399 struct page *scratch_page;
400 u32 __iomem *gtt_map;
401 uint32_t stolen_base;
402 u8 __iomem *vram_addr;
403 unsigned long vram_stolen_size;
404 u16 gmch_ctrl; /* Saved GTT setup */
407 struct mutex gtt_mutex;
408 struct resource *gtt_mem; /* Our PCI resource */
410 struct mutex mmap_mutex;
412 struct psb_mmu_driver *mmu;
413 struct psb_mmu_pd *pf_pd;
416 uint8_t __iomem *sgx_reg;
417 uint8_t __iomem *vdc_reg;
418 uint8_t __iomem *aux_reg; /* Auxillary vdc pipe regs */
419 uint16_t lpc_gpio_base;
420 uint32_t gatt_free_offset;
423 uint32_t vdc_irq_mask;
424 uint32_t pipestat[PSB_NUM_PIPE];
426 spinlock_t irqmask_lock;
434 struct psb_intel_mode_device mode_dev;
435 bool modeset; /* true if we have done the mode_device setup */
437 struct drm_crtc *plane_to_crtc_mapping[PSB_NUM_PIPE];
438 struct drm_crtc *pipe_to_crtc_mapping[PSB_NUM_PIPE];
441 /* OSPM info (Power management base) (TODO: can go ?) */
446 u32 video_device_fuse;
448 /* PCI revision ID for B0:D2:F0 */
449 uint8_t platform_rev_id;
452 struct intel_gmbus *gmbus;
453 uint8_t __iomem *gmbus_reg;
457 /* FIXME: The mappings should be parsed from bios but for now we can
458 pretend there are no mappings available */
459 struct sdvo_device_mapping sdvo_mappings[2];
460 u32 hotplug_supported_mask;
461 struct drm_property *broadcast_rgb_property;
462 struct drm_property *force_audio_property;
465 int backlight_duty_cycle; /* restore backlight to this value */
466 bool panel_wants_dither;
467 struct drm_display_mode *panel_fixed_mode;
468 struct drm_display_mode *lfp_lvds_vbt_mode;
469 struct drm_display_mode *sdvo_lvds_vbt_mode;
471 struct bdb_lvds_backlight *lvds_bl; /* LVDS backlight info from VBT */
472 struct psb_intel_i2c_chan *lvds_i2c_bus; /* FIXME: Remove this? */
474 /* Feature bits from the VBIOS */
475 unsigned int int_tv_support:1;
476 unsigned int lvds_dither:1;
477 unsigned int lvds_vbt:1;
478 unsigned int int_crt_support:1;
479 unsigned int lvds_use_ssc:1;
483 bool lvds_enabled_in_vbt;
484 u32 mipi_ctrl_display;
486 unsigned int core_freq;
487 uint32_t iLVDS_enable;
489 /* Runtime PM state */
494 struct oaktrail_gct_data gct_data;
496 /* Oaktrail HDMI state */
497 struct oaktrail_hdmi_dev *hdmi_priv;
500 struct psb_save_area regs;
506 /* Hotplug handling */
507 struct work_struct hotplug_work;
511 struct timer_list lid_timer;
512 struct psb_intel_opregion opregion;
520 * Used for modifying backlight from
521 * xrandr -- consider removing and using HAL instead
523 struct intel_scu_ipc_dev *scu;
524 struct backlight_device *backlight_device;
525 struct drm_property *backlight_property;
526 bool backlight_enabled;
531 struct drm_fb_helper *fb_helper;
533 /* Panel brightness */
535 int brightness_adjusted;
539 bool dpi_panel_on[3];
540 void *dsi_configs[2];
547 bool dplla_96mhz; /* DPLL data from the VBT */
558 struct edp_power_seq pps;
563 static inline struct drm_psb_private *to_drm_psb_private(struct drm_device *dev)
565 return container_of(dev, struct drm_psb_private, dev);
568 /* Operations for each board type */
571 int pipes; /* Number of output pipes */
572 int crtcs; /* Number of CRTCs */
573 int sgx_offset; /* Base offset of SGX device */
574 int hdmi_mask; /* Mask of HDMI CRTCs */
575 int lvds_mask; /* Mask of LVDS CRTCs */
576 int sdvo_mask; /* Mask of SDVO CRTCs */
577 int cursor_needs_phys; /* If cursor base reg need physical address */
580 struct drm_crtc_helper_funcs const *crtc_helper;
581 const struct gma_clock_funcs *clock_funcs;
584 int (*chip_setup)(struct drm_device *dev);
585 void (*chip_teardown)(struct drm_device *dev);
586 /* Optional helper caller after modeset */
587 void (*errata)(struct drm_device *dev);
589 /* Display management hooks */
590 int (*output_init)(struct drm_device *dev);
591 int (*hotplug)(struct drm_device *dev);
592 void (*hotplug_enable)(struct drm_device *dev, bool on);
593 /* Power management hooks */
594 void (*init_pm)(struct drm_device *dev);
595 int (*save_regs)(struct drm_device *dev);
596 int (*restore_regs)(struct drm_device *dev);
597 void (*save_crtc)(struct drm_crtc *crtc);
598 void (*restore_crtc)(struct drm_crtc *crtc);
599 int (*power_up)(struct drm_device *dev);
600 int (*power_down)(struct drm_device *dev);
601 void (*update_wm)(struct drm_device *dev, struct drm_crtc *crtc);
602 void (*disable_sr)(struct drm_device *dev);
604 void (*lvds_bl_power)(struct drm_device *dev, bool on);
605 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
607 int (*backlight_init)(struct drm_device *dev);
609 int i2c_bus; /* I2C bus identifier for Moorestown */
613 extern void psb_lid_timer_init(struct drm_psb_private *dev_priv);
614 extern void psb_lid_timer_takedown(struct drm_psb_private *dev_priv);
617 extern void psb_modeset_init(struct drm_device *dev);
618 extern void psb_modeset_cleanup(struct drm_device *dev);
619 extern int psb_fbdev_init(struct drm_device *dev);
622 int gma_backlight_init(struct drm_device *dev);
623 void gma_backlight_exit(struct drm_device *dev);
624 void gma_backlight_disable(struct drm_device *dev);
625 void gma_backlight_enable(struct drm_device *dev);
626 void gma_backlight_set(struct drm_device *dev, int v);
628 /* oaktrail_crtc.c */
629 extern const struct drm_crtc_helper_funcs oaktrail_helper_funcs;
631 /* oaktrail_lvds.c */
632 extern void oaktrail_lvds_init(struct drm_device *dev,
633 struct psb_intel_mode_device *mode_dev);
635 /* psb_intel_display.c */
636 extern const struct drm_crtc_helper_funcs psb_intel_helper_funcs;
638 /* psb_intel_lvds.c */
639 extern const struct drm_connector_helper_funcs
640 psb_intel_lvds_connector_helper_funcs;
641 extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
644 extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
645 struct drm_mode_create_dumb *args);
648 extern const struct psb_ops psb_chip_ops;
650 /* oaktrail_device.c */
651 extern const struct psb_ops oaktrail_chip_ops;
654 extern const struct psb_ops cdv_chip_ops;
657 static inline uint32_t REGISTER_READ(struct drm_device *dev, uint32_t reg)
659 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
660 return ioread32(dev_priv->vdc_reg + reg);
663 static inline uint32_t REGISTER_READ_AUX(struct drm_device *dev, uint32_t reg)
665 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
666 return ioread32(dev_priv->aux_reg + reg);
669 #define REG_READ(reg) REGISTER_READ(dev, (reg))
670 #define REG_READ_AUX(reg) REGISTER_READ_AUX(dev, (reg))
672 /* Useful for post reads */
673 static inline uint32_t REGISTER_READ_WITH_AUX(struct drm_device *dev,
674 uint32_t reg, int aux)
679 val = REG_READ_AUX(reg);
686 #define REG_READ_WITH_AUX(reg, aux) REGISTER_READ_WITH_AUX(dev, (reg), (aux))
688 static inline void REGISTER_WRITE(struct drm_device *dev, uint32_t reg,
691 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
692 iowrite32((val), dev_priv->vdc_reg + (reg));
695 static inline void REGISTER_WRITE_AUX(struct drm_device *dev, uint32_t reg,
698 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
699 iowrite32((val), dev_priv->aux_reg + (reg));
702 #define REG_WRITE(reg, val) REGISTER_WRITE(dev, (reg), (val))
703 #define REG_WRITE_AUX(reg, val) REGISTER_WRITE_AUX(dev, (reg), (val))
705 static inline void REGISTER_WRITE_WITH_AUX(struct drm_device *dev, uint32_t reg,
706 uint32_t val, int aux)
709 REG_WRITE_AUX(reg, val);
714 #define REG_WRITE_WITH_AUX(reg, val, aux) REGISTER_WRITE_WITH_AUX(dev, (reg), (val), (aux))
716 static inline void REGISTER_WRITE16(struct drm_device *dev,
717 uint32_t reg, uint32_t val)
719 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
720 iowrite16((val), dev_priv->vdc_reg + (reg));
723 #define REG_WRITE16(reg, val) REGISTER_WRITE16(dev, (reg), (val))
725 static inline void REGISTER_WRITE8(struct drm_device *dev,
726 uint32_t reg, uint32_t val)
728 struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
729 iowrite8((val), dev_priv->vdc_reg + (reg));
732 #define REG_WRITE8(reg, val) REGISTER_WRITE8(dev, (reg), (val))
734 #define PSB_WVDC32(_val, _offs) iowrite32(_val, dev_priv->vdc_reg + (_offs))
735 #define PSB_RVDC32(_offs) ioread32(dev_priv->vdc_reg + (_offs))
737 #define PSB_RSGX32(_offs) ioread32(dev_priv->sgx_reg + (_offs))
738 #define PSB_WSGX32(_val, _offs) iowrite32(_val, dev_priv->sgx_reg + (_offs))
740 #define PSB_WMSVDX32(_val, _offs) iowrite32(_val, dev_priv->msvdx_reg + (_offs))
741 #define PSB_RMSVDX32(_offs) ioread32(dev_priv->msvdx_reg + (_offs))