path: root/drivers/gpu/drm/gma500/psb_drv.h

/**************************************************************************
 * Copyright (c) 2007-2011, Intel Corporation.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
 *
 **************************************************************************/

#ifndef _PSB_DRV_H_
#define _PSB_DRV_H_

#include <linux/kref.h>

#include <drm/drmP.h>
#include "drm_global.h"
#include "gem_glue.h"
#include "gma_drm.h"
#include "psb_reg.h"
#include "psb_intel_drv.h"
#include "gtt.h"
#include "power.h"
#include "oaktrail.h"

/* Append new drm mode definition here, align with libdrm definition */
#define DRM_MODE_SCALE_NO_SCALE   	2

enum {
	CHIP_PSB_8108 = 0,		/* Poulsbo */
	CHIP_PSB_8109 = 1,		/* Poulsbo */
	CHIP_MRST_4100 = 2,		/* Moorestown/Oaktrail */
	CHIP_MFLD_0130 = 3,		/* Medfield */
};

#define IS_PSB(dev) (((dev)->pci_device & 0xfffe) == 0x8108)
#define IS_MRST(dev) (((dev)->pci_device & 0xfffc) == 0x4100)
#define IS_MFLD(dev) (((dev)->pci_device & 0xfff8) == 0x0130)

/*
 * Driver definitions
 */

#define DRIVER_NAME "gma500"
#define DRIVER_DESC "DRM driver for the Intel GMA500"

#define PSB_DRM_DRIVER_DATE "2011-06-06"
#define PSB_DRM_DRIVER_MAJOR 1
#define PSB_DRM_DRIVER_MINOR 0
#define PSB_DRM_DRIVER_PATCHLEVEL 0

/*
 *	Hardware offsets
 */
#define PSB_VDC_OFFSET		 0x00000000
#define PSB_VDC_SIZE		 0x000080000
#define MRST_MMIO_SIZE		 0x0000C0000
#define MDFLD_MMIO_SIZE          0x000100000
#define PSB_SGX_SIZE		 0x8000
#define PSB_SGX_OFFSET		 0x00040000
#define MRST_SGX_OFFSET		 0x00080000
/*
 *	PCI resource identifiers
 */
#define PSB_MMIO_RESOURCE	 0
#define PSB_GATT_RESOURCE	 2
#define PSB_GTT_RESOURCE	 3
/*
 *	PCI configuration
 */
#define PSB_GMCH_CTRL		 0x52
#define PSB_BSM			 0x5C
#define _PSB_GMCH_ENABLED	 0x4
#define PSB_PGETBL_CTL		 0x2020
#define _PSB_PGETBL_ENABLED	 0x00000001
#define PSB_SGX_2D_SLAVE_PORT	 0x4000

/* To get rid of */
#define PSB_TT_PRIV0_LIMIT	 (256*1024*1024)
#define PSB_TT_PRIV0_PLIMIT	 (PSB_TT_PRIV0_LIMIT >> PAGE_SHIFT)

/*
 *	SGX side MMU definitions (these can probably go)
 */

/*
 *	Flags for external memory type field.
 */
#define PSB_MMU_CACHED_MEMORY	  0x0001	/* Bind to MMU only */
#define PSB_MMU_RO_MEMORY	  0x0002	/* MMU RO memory */
#define PSB_MMU_WO_MEMORY	  0x0004	/* MMU WO memory */
/*
 *	PTE's and PDE's
 */
#define PSB_PDE_MASK		  0x003FFFFF
#define PSB_PDE_SHIFT		  22
#define PSB_PTE_SHIFT		  12
/*
 *	Cache control
 */
#define PSB_PTE_VALID		  0x0001	/* PTE / PDE valid */
#define PSB_PTE_WO		  0x0002	/* Write only */
#define PSB_PTE_RO		  0x0004	/* Read only */
#define PSB_PTE_CACHED		  0x0008	/* CPU cache coherent */

/*
 *	VDC registers and bits
 */
#define PSB_MSVDX_CLOCKGATING	  0x2064
#define PSB_TOPAZ_CLOCKGATING	  0x2068
#define PSB_HWSTAM		  0x2098
#define PSB_INSTPM		  0x20C0
#define PSB_INT_IDENTITY_R        0x20A4
#define _MDFLD_PIPEC_EVENT_FLAG   (1<<2)
#define _MDFLD_PIPEC_VBLANK_FLAG  (1<<3)
#define _PSB_DPST_PIPEB_FLAG      (1<<4)
#define _MDFLD_PIPEB_EVENT_FLAG   (1<<4)
#define _PSB_VSYNC_PIPEB_FLAG	  (1<<5)
#define _PSB_DPST_PIPEA_FLAG      (1<<6)
#define _PSB_PIPEA_EVENT_FLAG     (1<<6)
#define _PSB_VSYNC_PIPEA_FLAG	  (1<<7)
#define _MDFLD_MIPIA_FLAG	  (1<<16)
#define _MDFLD_MIPIC_FLAG	  (1<<17)
#define _PSB_IRQ_SGX_FLAG	  (1<<18)
#define _PSB_IRQ_MSVDX_FLAG	  (1<<19)
#define _LNC_IRQ_TOPAZ_FLAG	  (1<<20)

#define _PSB_PIPE_EVENT_FLAG	(_PSB_VSYNC_PIPEA_FLAG | \
				 _PSB_VSYNC_PIPEB_FLAG)

/* This flag includes all the display IRQ bits excepts the vblank irqs. */
#define _MDFLD_DISP_ALL_IRQ_FLAG (_MDFLD_PIPEC_EVENT_FLAG | \
				  _MDFLD_PIPEB_EVENT_FLAG | \
				  _PSB_PIPEA_EVENT_FLAG | \
				  _PSB_VSYNC_PIPEA_FLAG | \
				  _MDFLD_MIPIA_FLAG | \
				  _MDFLD_MIPIC_FLAG)
#define PSB_INT_IDENTITY_R	  0x20A4
#define PSB_INT_MASK_R		  0x20A8
#define PSB_INT_ENABLE_R	  0x20A0

#define _PSB_MMU_ER_MASK      0x0001FF00
#define _PSB_MMU_ER_HOST      (1 << 16)
#define GPIOA			0x5010
#define GPIOB			0x5014
#define GPIOC			0x5018
#define GPIOD			0x501c
#define GPIOE			0x5020
#define GPIOF			0x5024
#define GPIOG			0x5028
#define GPIOH			0x502c
#define GPIO_CLOCK_DIR_MASK		(1 << 0)
#define GPIO_CLOCK_DIR_IN		(0 << 1)
#define GPIO_CLOCK_DIR_OUT		(1 << 1)
#define GPIO_CLOCK_VAL_MASK		(1 << 2)
#define GPIO_CLOCK_VAL_OUT		(1 << 3)
#define GPIO_CLOCK_VAL_IN		(1 << 4)
#define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
#define GPIO_DATA_DIR_MASK		(1 << 8)
#define GPIO_DATA_DIR_IN		(0 << 9)
#define GPIO_DATA_DIR_OUT		(1 << 9)
#define GPIO_DATA_VAL_MASK		(1 << 10)
#define GPIO_DATA_VAL_OUT		(1 << 11)
#define GPIO_DATA_VAL_IN		(1 << 12)
#define GPIO_DATA_PULLUP_DISABLE	(1 << 13)

#define VCLK_DIVISOR_VGA0   0x6000
#define VCLK_DIVISOR_VGA1   0x6004
#define VCLK_POST_DIV	    0x6010

#define PSB_COMM_2D (PSB_ENGINE_2D << 4)
#define PSB_COMM_3D (PSB_ENGINE_3D << 4)
#define PSB_COMM_TA (PSB_ENGINE_TA << 4)
#define PSB_COMM_HP (PSB_ENGINE_HP << 4)
#define PSB_COMM_USER_IRQ (1024 >> 2)
#define PSB_COMM_USER_IRQ_LOST (PSB_COMM_USER_IRQ + 1)
#define PSB_COMM_FW (2048 >> 2)

#define PSB_UIRQ_VISTEST	       1
#define PSB_UIRQ_OOM_REPLY	       2
#define PSB_UIRQ_FIRE_TA_REPLY	       3
#define PSB_UIRQ_FIRE_RASTER_REPLY     4

#define PSB_2D_SIZE (256*1024*1024)
#define PSB_MAX_RELOC_PAGES 1024

#define PSB_LOW_REG_OFFS 0x0204
#define PSB_HIGH_REG_OFFS 0x0600

#define PSB_NUM_VBLANKS 2


#define PSB_2D_SIZE (256*1024*1024)
#define PSB_MAX_RELOC_PAGES 1024

#define PSB_LOW_REG_OFFS 0x0204
#define PSB_HIGH_REG_OFFS 0x0600

#define PSB_NUM_VBLANKS 2
#define PSB_WATCHDOG_DELAY (DRM_HZ * 2)
#define PSB_LID_DELAY (DRM_HZ / 10)

#define MDFLD_PNW_B0 0x04
#define MDFLD_PNW_C0 0x08

#define MDFLD_DSR_2D_3D_0 	(1 << 0)
#define MDFLD_DSR_2D_3D_2 	(1 << 1)
#define MDFLD_DSR_CURSOR_0 	(1 << 2)
#define MDFLD_DSR_CURSOR_2	(1 << 3)
#define MDFLD_DSR_OVERLAY_0 	(1 << 4)
#define MDFLD_DSR_OVERLAY_2 	(1 << 5)
#define MDFLD_DSR_MIPI_CONTROL	(1 << 6)
#define MDFLD_DSR_DAMAGE_MASK_0	((1 << 0) | (1 << 2) | (1 << 4))
#define MDFLD_DSR_DAMAGE_MASK_2	((1 << 1) | (1 << 3) | (1 << 5))
#define MDFLD_DSR_2D_3D 	(MDFLD_DSR_2D_3D_0 | MDFLD_DSR_2D_3D_2)

#define MDFLD_DSR_RR		45
#define MDFLD_DPU_ENABLE 	(1 << 31)
#define MDFLD_DSR_FULLSCREEN 	(1 << 30)
#define MDFLD_DSR_DELAY		(DRM_HZ / MDFLD_DSR_RR)

#define PSB_PWR_STATE_ON		1
#define PSB_PWR_STATE_OFF		2

#define PSB_PMPOLICY_NOPM		0
#define PSB_PMPOLICY_CLOCKGATING	1
#define PSB_PMPOLICY_POWERDOWN		2

#define PSB_PMSTATE_POWERUP		0
#define PSB_PMSTATE_CLOCKGATED		1
#define PSB_PMSTATE_POWERDOWN		2
#define PSB_PCIx_MSI_ADDR_LOC		0x94
#define PSB_PCIx_MSI_DATA_LOC		0x98

/* Medfield crystal settings */
#define KSEL_CRYSTAL_19 1
#define KSEL_BYPASS_19 5
#define KSEL_BYPASS_25 6
#define KSEL_BYPASS_83_100 7

struct opregion_header;
struct opregion_acpi;
struct opregion_swsci;
struct opregion_asle;

struct psb_intel_opregion {
	struct opregion_header *header;
	struct opregion_acpi *acpi;
	struct opregion_swsci *swsci;
	struct opregion_asle *asle;
	int enabled;
};

struct sdvo_device_mapping {
	u8 initialized;
	u8 dvo_port;
	u8 slave_addr;
	u8 dvo_wiring;
	u8 i2c_pin;
	u8 i2c_speed;
	u8 ddc_pin;
};

struct intel_gmbus {
	struct i2c_adapter adapter;
	struct i2c_adapter *force_bit;
	u32 reg0;
};

struct psb_ops;

#define PSB_NUM_PIPE		3

struct drm_psb_private {
	struct drm_device *dev;
	const struct psb_ops *ops;

	struct psb_gtt gtt;

	/* GTT Memory manager */
	struct psb_gtt_mm *gtt_mm;
	struct page *scratch_page;
	u32 *gtt_map;
	uint32_t stolen_base;
	void *vram_addr;
	unsigned long vram_stolen_size;
	int gtt_initialized;
	u16 gmch_ctrl;		/* Saved GTT setup */
	u32 pge_ctl;

	struct mutex gtt_mutex;
	struct resource *gtt_mem;	/* Our PCI resource */

	struct psb_mmu_driver *mmu;
	struct psb_mmu_pd *pf_pd;

	/*
	 * Register base
	 */

	uint8_t *sgx_reg;
	uint8_t *vdc_reg;
	uint32_t gatt_free_offset;

	/*
	 * Fencing / irq.
	 */

	uint32_t vdc_irq_mask;
	uint32_t pipestat[PSB_NUM_PIPE];

	spinlock_t irqmask_lock;

	/*
	 * Power
	 */

	bool suspended;
	bool display_power;
	int display_count;

	/*
	 * Modesetting
	 */
	struct psb_intel_mode_device mode_dev;

	struct drm_crtc *plane_to_crtc_mapping[PSB_NUM_PIPE];
	struct drm_crtc *pipe_to_crtc_mapping[PSB_NUM_PIPE];
	uint32_t num_pipe;

	/*
	 * OSPM info (Power management base) (can go ?)
	 */
	uint32_t ospm_base;