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

#define VMWGFX_DRIVER_DATE "20120209"
#define VMWGFX_DRIVER_MAJOR 2
#define VMWGFX_DRIVER_MINOR 4
#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 list_head fence_events;
};

struct vmw_dma_buffer {
	struct ttm_buffer_object base;
	struct list_head res_list;
};

/**
 * struct vmw_validate_buffer - Carries validation info about buffers.
 *
 * @base: Validation info for TTM.
 * @hash: Hash entry for quick lookup of the TTM buffer object.
 *
 * This structure contains also driver private validation info
 * on top of the info needed by TTM.
 */
struct vmw_validate_buffer {
	struct ttm_validate_buffer base;
	struct drm_hash_item hash;
};

struct vmw_res_func;
struct vmw_resource {
	struct kref kref;
	struct vmw_private *dev_priv;
	int id;
	bool avail;
	unsigned long backup_size;
	bool res_dirty; /* Protected by backup buffer reserved */
	bool backup_dirty; /* Protected by backup buffer reserved */
	struct vmw_dma_buffer *backup;
	unsigned long backup_offset;
	const struct vmw_res_func *func;
	struct list_head lru_head; /* Protected by the resource lock */
	struct list_head mob_head; /* Protected by @backup reserved */
	void (*res_free) (struct vmw_resource *res);
	void (*hw_destroy) (struct vmw_resource *res);
};

enum vmw_res_type {
	vmw_res_context,
	vmw_res_surface,
	vmw_res_stream,
	vmw_res_max
};

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;
	uint32_t flags;
	uint32_t format;
	uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES];
	struct drm_vmw_size base_size;
	struct drm_vmw_size *sizes;
	uint32_t num_sizes;
	bool scanout;
	/* TODO so far just a extra pointer */
	struct vmw_cursor_snooper snooper;
	struct vmw_surface_offset *offsets;
	SVGA3dTextureFilter autogen_filter;
	uint32_t multisample_count;
};

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_res_cache_entry - resource information cache entry
 *
 * @valid: Whether the entry is valid, which also implies that the execbuf
 * code holds a reference to the resource, and it's placed on the
 * validation list.
 * @handle: User-space handle of a resource.
 * @res: Non-ref-counted pointer to the resource.
 *
 * Used to avoid frequent repeated user-space handle lookups of the
 * same resource.
 */
struct vmw_res_cache_entry {
	bool valid;
	uint32_t handle;
	struct vmw_resource *res;
	struct vmw_resource_val_node *node;
};

struct vmw_sw_context{
	struct drm_open_hash res_ht;
	bool res_ht_initialized;
	bool kernel; /**< is the called made from the kernel */
	struct ttm_object_file *tfile;
	struct list_head validate_nodes;
	struct vmw_relocation relocs[VMWGFX_MAX_RELOCATIONS];
	uint32_t cur_reloc;
	struct vmw_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 ttm_buffer_object *cur_query_bo;
	struct list_head res_relocations;
	uint32_t *buf_start;
	struct vmw_res_cache_entry res_cache[vmw_res_max];
	struct vmw_resource *last_query_ctx;
	bool needs_post_query_barrier;
	struct vmw_resource *error_resource;
};

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;
	uint32_t initial_width;
	uint32_t initial_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 res_idr[vmw_res_max];
	/*
	 * Block lastclose from racing with firstopen.
	 */

	struct mutex init_mutex;