path: root/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h

/**************************************************************************
 *
 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
 * USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 **************************************************************************/

#ifndef _VMWGFX_DRV_H_
#define _VMWGFX_DRV_H_

#include "vmwgfx_reg.h"
#include "drmP.h"
#include "vmwgfx_drm.h"
#include "drm_hashtab.h"
#include "linux/suspend.h"
#include "ttm/ttm_bo_driver.h"
#include "ttm/ttm_object.h"
#include "ttm/ttm_lock.h"
#include "ttm/ttm_execbuf_util.h"
#include "ttm/ttm_module.h"
#include "vmwgfx_fence.h"

#define VMWGFX_DRIVER_DATE "20111025"
#define VMWGFX_DRIVER_MAJOR 2
#define VMWGFX_DRIVER_MINOR 3
#define VMWGFX_DRIVER_PATCHLEVEL 0
#define VMWGFX_FILE_PAGE_OFFSET 0x00100000
#define VMWGFX_FIFO_STATIC_SIZE (1024*1024)
#define VMWGFX_MAX_RELOCATIONS 2048
#define VMWGFX_MAX_VALIDATIONS 2048
#define VMWGFX_MAX_DISPLAYS 16
#define VMWGFX_CMD_BOUNCE_INIT_SIZE 32768

#define VMW_PL_GMR TTM_PL_PRIV0
#define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0

#define VMW_RES_CONTEXT ttm_driver_type0
#define VMW_RES_SURFACE ttm_driver_type1
#define VMW_RES_STREAM ttm_driver_type2
#define VMW_RES_FENCE ttm_driver_type3

struct vmw_fpriv {
	struct drm_master *locked_master;
	struct ttm_object_file *tfile;
};

struct vmw_dma_buffer {
	struct ttm_buffer_object base;
	struct list_head validate_list;
	bool gmr_bound;
	uint32_t cur_validate_node;
	bool on_validate_list;
};

struct vmw_resource {
	struct kref kref;
	struct vmw_private *dev_priv;
	struct idr *idr;
	int id;
	enum ttm_object_type res_type;
	bool avail;
	void (*remove_from_lists) (struct vmw_resource *res);
	void (*hw_destroy) (struct vmw_resource *res);
	void (*res_free) (struct vmw_resource *res);
	struct list_head validate_head;
	struct list_head query_head; /* Protected by the cmdbuf mutex */
	/* TODO is a generic snooper needed? */
#if 0
	void (*snoop)(struct vmw_resource *res,
		      struct ttm_object_file *tfile,
		      SVGA3dCmdHeader *header);
	void *snoop_priv;
#endif
};

struct vmw_cursor_snooper {
	struct drm_crtc *crtc;
	size_t age;
	uint32_t *image;
};

struct vmw_framebuffer;
struct vmw_surface_offset;

struct vmw_surface {
	struct vmw_resource res;
	struct list_head lru_head; /* Protected by the resource lock */
	uint32_t flags;
	uint32_t format;
	uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
	struct drm_vmw_size *sizes;
	uint32_t num_sizes;

	bool scanout;

	/* TODO so far just a extra pointer */
	struct vmw_cursor_snooper snooper;
	struct ttm_buffer_object *backup;
	struct vmw_surface_offset *offsets;
	uint32_t backup_size;
};

struct vmw_marker_queue {
	struct list_head head;
	struct timespec lag;
	struct timespec lag_time;
	spinlock_t lock;
};

struct vmw_fifo_state {
	unsigned long reserved_size;
	__le32 *dynamic_buffer;
	__le32 *static_buffer;
	unsigned long static_buffer_size;
	bool using_bounce_buffer;
	uint32_t capabilities;
	struct mutex fifo_mutex;
	struct rw_semaphore rwsem;
	struct vmw_marker_queue marker_queue;
};

struct vmw_relocation {
	SVGAGuestPtr *location;
	uint32_t index;
};

struct vmw_sw_context{
	struct ida bo_list;
	uint32_t last_cid;
	bool cid_valid;
	bool kernel; /**< is the called made from the kernel */
	struct vmw_resource *cur_ctx;
	uint32_t last_sid;
	uint32_t sid_translation;
	bool sid_valid;
	struct ttm_object_file *tfile;
	struct list_head validate_nodes;
	struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
	uint32_t cur_reloc;
	struct ttm_validate_buffer val_bufs[VMWGFX_MAX_VALIDATIONS];
	uint32_t cur_val_buf;
	uint32_t *cmd_bounce;
	uint32_t cmd_bounce_size;
	struct list_head resource_list;
	uint32_t fence_flags;
	struct list_head query_list;
	struct ttm_buffer_object *cur_query_bo;
	uint32_t cur_query_cid;
	bool query_cid_valid;
};

struct vmw_legacy_display;
struct vmw_overlay;

struct vmw_master {
	struct ttm_lock lock;
	struct mutex fb_surf_mutex;
	struct list_head fb_surf;
};

struct vmw_vga_topology_state {
	uint32_t width;
	uint32_t height;
	uint32_t primary;
	uint32_t pos_x;
	uint32_t pos_y;
};

struct vmw_private {
	struct ttm_bo_device bdev;
	struct ttm_bo_global_ref bo_global_ref;
	struct drm_global_reference mem_global_ref;

	struct vmw_fifo_state fifo;

	struct drm_device *dev;
	unsigned long vmw_chipset;
	unsigned int io_start;
	uint32_t vram_start;
	uint32_t vram_size;
	uint32_t mmio_start;
	uint32_t mmio_size;
	uint32_t fb_max_width;
	uint32_t fb_max_height;
	__le32 __iomem *mmio_virt;
	int mmio_mtrr;
	uint32_t capabilities;
	uint32_t max_gmr_descriptors;
	uint32_t max_gmr_ids;
	uint32_t max_gmr_pages;
	uint32_t memory_size;
	bool has_gmr;
	struct mutex hw_mutex;

	/*
	 * VGA registers.
	 */

	struct vmw_vga_topology_state vga_save[VMWGFX_MAX_DISPLAYS];
	uint32_t vga_width;
	uint32_t vga_height;
	uint32_t vga_bpp;
	uint32_t vga_bpl;
	uint32_t vga_pitchlock;

	uint32_t num_displays;

	/*
	 * Framebuffer info.
	 */

	void *fb_info;
	struct vmw_legacy_display *ldu_priv;
	struct vmw_screen_object_display *sou_priv;
	struct vmw_overlay *overlay_priv;

	/*
	 * Context and surface management.
	 */

	rwlock_t resource_lock;
	struct idr context_idr;
	struct idr surface_idr;
	struct idr stream_idr;

	/*
	 * Block lastclose from racing with firstopen.
	 */

	struct mutex init_mutex;

	/*
	 * A resource manager for kernel-only surfaces and
	 * contexts.
	 */

	struct ttm_object_device *tdev;

	/*
	 * Fencing and IRQs.
	 */

	atomic_t marker_seq;
	wait_queue_head_t fence_queue;
	wait_queue_head_t fifo_queue;
	int fence_queue_waiters; /* Protected by hw_mutex */
	int goal_queue_waiters; /* Protected by hw_mutex */
	atomic_t fifo_queue_waiters;
	uint32_t last_read_seqno;
	spinlock_t irq_lock;
	struct vmw_fence_manager *fman;
	uint32_t irq_mask;

	/*
	 * Device state
	 */

	uint32_t traces_state;
	uint32_t enable_state;
	uint32_t config_done_state;

	/**
	 * Execbuf
	 */
	/**
	 * Protected by the cmdbuf mutex.
	 */

	struct vmw_sw_context ctx;
	struct mutex cmdbuf_mutex;

	/**
	 * Operating mode.
	 */

	bool stealth;
	bool is_opened;
	bool enable_fb;

	/**
	 * Master management.
	 */

	struct vmw_master *active_master;
	<