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/**************************************************************************
*
* 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;
};
/**
* enum vmw_dma_map_mode - indicate how to perform TTM page dma mappings.
*/
enum vmw_dma_map_mode {
vmw_dma_phys, /* Use physical page addresses */
vmw_dma_alloc_coherent, /* Use TTM coherent pages */
vmw_dma_map_populate, /* Unmap from DMA just after unpopulate */
vmw_dma_map_bind, /* Unmap from DMA just before unbind */
vmw_dma_map_max
};
/**
* struct vmw_sg_table - Scatter/gather table for binding, with additional
* device-specific information.
*
* @sgt: Pointer to a struct sg_table with binding information
* @num_regions: Number of regions with device-address contigous pages
*/
struct vmw_sg_table {
enum vmw_dma_map_mode mode;
struct page **pages;
const dma_addr_t *addrs;
struct sg_table *sgt;
unsigned long num_regions;
unsigned long num_pages;
};
/**
* struct vmw_piter - Page iterator that iterates over a list of pages
* and DMA addresses that could be either a scatter-gather list or
* arrays
*
* @pages: Array of page pointers to the pages.
* @addrs: DMA addresses to the pages if coherent pages are used.
* @iter: Scatter-gather page iterator. Current position in SG list.
* @i: Current position in arrays.
* @num_pages: Number of pages total.
* @next: Function to advance the iterator. Returns false if past the list
* of pages, true otherwise.
* @dma_address: Function to return the DMA address of the current page.
*/
struct vmw_piter {
struct page **pages;
const dma_addr_t *addrs;
struct sg_page_iter iter;
unsigned long i;
unsigned long num_pages;
bool (*next)(struct vmw_piter *);
dma_addr_t (*dma_address)(struct vmw_piter *);
struct page *(*page)(struct vmw_piter *);
};
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;
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