via_drv.h

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/*
 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
 * Copyright 2001-2003 S3 Graphics, Inc. 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
 * VIA, S3 GRAPHICS, 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 _VIA_DRV_H_
#define _VIA_DRV_H_

#include <drm/drm_mm.h>
#define DRIVER_AUTHOR   "Various"

#define DRIVER_NAME     "via"
#define DRIVER_DESC     "VIA Unichrome / Pro"
#define DRIVER_DATE     "20070202"

#define DRIVER_MAJOR        2
#define DRIVER_MINOR        11
#define DRIVER_PATCHLEVEL   1

#include "via_verifier.h"

#include "via_dmablit.h"

#define VIA_PCI_BUF_SIZE 60000
#define VIA_FIRE_BUF_SIZE  1024
#define VIA_NUM_IRQS 4

typedef struct drm_via_ring_buffer {
    drm_local_map_t map;
    char *virtual_start;
} drm_via_ring_buffer_t;

typedef uint32_t maskarray_t[5];

typedef struct drm_via_irq {
    atomic_t irq_received;
    uint32_t pending_mask;
    uint32_t enable_mask;
    wait_queue_head_t irq_queue;
} drm_via_irq_t;

typedef struct drm_via_private {
    drm_via_sarea_t *sarea_priv;
    drm_local_map_t *sarea;
    drm_local_map_t *fb;
    drm_local_map_t *mmio;
    unsigned long agpAddr;
    wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
    char *dma_ptr;
    unsigned int dma_low;
    unsigned int dma_high;
    unsigned int dma_offset;
    uint32_t dma_wrap;
    volatile uint32_t *last_pause_ptr;
    volatile uint32_t *hw_addr_ptr;
    drm_via_ring_buffer_t ring;
    struct timeval last_vblank;
    int last_vblank_valid;
    unsigned usec_per_vblank;
    atomic_t vbl_received;
    drm_via_state_t hc_state;
    char pci_buf[VIA_PCI_BUF_SIZE];
    const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
    uint32_t num_fire_offsets;
    int chipset;
    drm_via_irq_t via_irqs[VIA_NUM_IRQS];
    unsigned num_irqs;
    maskarray_t *irq_masks;
    uint32_t irq_enable_mask;
    uint32_t irq_pending_mask;
    int *irq_map;
    unsigned int idle_fault;
    int vram_initialized;
    struct drm_mm vram_mm;
    int agp_initialized;
    struct drm_mm agp_mm;
    struct idr object_idr;
    unsigned long vram_offset;
    unsigned long agp_offset;
    drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
    uint32_t dma_diff;
} drm_via_private_t;

enum via_family {
  VIA_OTHER = 0,     /* Baseline */
  VIA_PRO_GROUP_A,   /* Another video engine and DMA commands */
  VIA_DX9_0          /* Same video as pro_group_a, but 3D is unsupported */
};

/* VIA MMIO register access */
#define VIA_BASE ((dev_priv->mmio))

#define VIA_READ(reg)       DRM_READ32(VIA_BASE, reg)
#define VIA_WRITE(reg, val) DRM_WRITE32(VIA_BASE, reg, val)
#define VIA_READ8(reg)      DRM_READ8(VIA_BASE, reg)
#define VIA_WRITE8(reg, val)    DRM_WRITE8(VIA_BASE, reg, val)

extern struct drm_ioctl_desc via_ioctls[];
extern int via_max_ioctl;

extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_dma_blit_sync(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern int via_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv);

extern int via_driver_load(struct drm_device *dev, unsigned long chipset);
extern int via_driver_unload(struct drm_device *dev);

extern int via_init_context(struct drm_device *dev, int context);
extern int via_final_context(struct drm_device *dev, int context);

extern int via_do_cleanup_map(struct drm_device *dev);
extern u32 via_get_vblank_counter(struct drm_device *dev, int crtc);
extern int via_enable_vblank(struct drm_device *dev, int crtc);
extern void via_disable_vblank(struct drm_device *dev, int crtc);

extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
extern void via_driver_irq_preinstall(struct drm_device *dev);
extern int via_driver_irq_postinstall(struct drm_device *dev);
extern void via_driver_irq_uninstall(struct drm_device *dev);

extern int via_dma_cleanup(struct drm_device *dev);
extern void via_init_command_verifier(void);
extern int via_driver_dma_quiescent(struct drm_device *dev);
extern void via_init_futex(drm_via_private_t *dev_priv);
extern void via_cleanup_futex(drm_via_private_t *dev_priv);
extern void via_release_futex(drm_via_private_t *dev_priv, int context);

extern void via_reclaim_buffers_locked(struct drm_device *dev,
                       struct drm_file *file_priv);
extern void via_lastclose(struct drm_device *dev);

extern void via_dmablit_handler(struct drm_device *dev, int engine, int from_irq);
extern void via_init_dmablit(struct drm_device *dev);

#endif