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

/**************************************************************************
 *
 * Copyright © 2009-2015 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.
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 **************************************************************************/

#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 "20160210"
#define VMWGFX_DRIVER_MAJOR 2
#define VMWGFX_DRIVER_MINOR 10
#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 VMWGFX_ENABLE_SCREEN_TARGET_OTABLE 1

/*
 * Perhaps we should have sysfs entries for these.
 */
#define VMWGFX_NUM_GB_CONTEXT 256
#define VMWGFX_NUM_GB_SHADER 20000
#define VMWGFX_NUM_GB_SURFACE 32768
#define VMWGFX_NUM_GB_SCREEN_TARGET VMWGFX_MAX_DISPLAYS
#define VMWGFX_NUM_DXCONTEXT 256
#define VMWGFX_NUM_DXQUERY 512
#define VMWGFX_NUM_MOB (VMWGFX_NUM_GB_CONTEXT +\
			VMWGFX_NUM_GB_SHADER +\
			VMWGFX_NUM_GB_SURFACE +\
			VMWGFX_NUM_GB_SCREEN_TARGET)

#define VMW_PL_GMR TTM_PL_PRIV0
#define VMW_PL_FLAG_GMR TTM_PL_FLAG_PRIV0
#define VMW_PL_MOB TTM_PL_PRIV1
#define VMW_PL_FLAG_MOB TTM_PL_FLAG_PRIV1

#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
#define VMW_RES_SHADER ttm_driver_type4

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

struct vmw_dma_buffer {
	struct ttm_buffer_object base;
	struct list_head res_list;
	s32 pin_count;
	/* Not ref-counted.  Protected by binding_mutex */
	struct vmw_resource *dx_query_ctx;
};

/**
 * 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;
	bool validate_as_mob;
};

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;
	unsigned long pin_count; /* Protected by resource reserved */
	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 */
	struct list_head binding_head; /* Protected by binding_mutex */
	void (*res_free) (struct vmw_resource *res);
	void (*hw_destroy) (struct vmw_resource *res);
};


/*
 * Resources that are managed using ioctls.
 */
enum vmw_res_type {
	vmw_res_context,
	vmw_res_surface,
	vmw_res_stream,
	vmw_res_shader,
	vmw_res_dx_context,
	vmw_res_cotable,
	vmw_res_view,
	vmw_res_max
};

/*
 * Resources that are managed using command streams.
 */
enum vmw_cmdbuf_res_type {
	vmw_cmdbuf_res_shader,
	vmw_cmdbuf_res_view
};

struct vmw_cmdbuf_res_manager;

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;
	uint32_t array_size;
	/* TODO so far just a extra pointer */
	struct vmw_cursor_snooper snooper;
	struct