1/*
  2 * Copyright 1998-2003 VIA Technologies, Inc. All Rights Reserved.
  3 * Copyright 2001-2003 S3 Graphics, Inc. All Rights Reserved.
  4 *
  5 * Permission is hereby granted, free of charge, to any person obtaining a
  6 * copy of this software and associated documentation files (the "Software"),
  7 * to deal in the Software without restriction, including without limitation
  8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
  9 * and/or sell copies of the Software, and to permit persons to whom the
 10 * Software is furnished to do so, subject to the following conditions:
 11 *
 12 * The above copyright notice and this permission notice (including the
 13 * next paragraph) shall be included in all copies or substantial portions
 14 * of the Software.
 15 *
 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 19 * VIA, S3 GRAPHICS, AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 22 * DEALINGS IN THE SOFTWARE.
 23 */
 24#ifndef _VIA_DRV_H_
 25#define _VIA_DRV_H_
 26
 27#include <drm/drm_mm.h>
 28#include <drm/drm_legacy.h>
 29
 30#define DRIVER_AUTHOR	"Various"
 31
 32#define DRIVER_NAME		"via"
 33#define DRIVER_DESC		"VIA Unichrome / Pro"
 34#define DRIVER_DATE		"20070202"
 35
 36#define DRIVER_MAJOR		2
 37#define DRIVER_MINOR		11
 38#define DRIVER_PATCHLEVEL	1
 39
 40#include "via_verifier.h"
 41
 42#include "via_dmablit.h"
 43
 44#define VIA_PCI_BUF_SIZE 60000
 45#define VIA_FIRE_BUF_SIZE  1024
 46#define VIA_NUM_IRQS 4
 47
 48typedef struct drm_via_ring_buffer {
 49	drm_local_map_t map;
 50	char *virtual_start;
 51} drm_via_ring_buffer_t;
 52
 53typedef uint32_t maskarray_t[5];
 54
 55typedef struct drm_via_irq {
 56	atomic_t irq_received;
 57	uint32_t pending_mask;
 58	uint32_t enable_mask;
 59	wait_queue_head_t irq_queue;
 60} drm_via_irq_t;
 61
 62typedef struct drm_via_private {
 63	drm_via_sarea_t *sarea_priv;
 64	drm_local_map_t *sarea;
 65	drm_local_map_t *fb;
 66	drm_local_map_t *mmio;
 67	unsigned long agpAddr;
 68	wait_queue_head_t decoder_queue[VIA_NR_XVMC_LOCKS];
 69	char *dma_ptr;
 70	unsigned int dma_low;
 71	unsigned int dma_high;
 72	unsigned int dma_offset;
 73	uint32_t dma_wrap;
 74	volatile uint32_t *last_pause_ptr;
 75	volatile uint32_t *hw_addr_ptr;
 76	drm_via_ring_buffer_t ring;
 77	struct timeval last_vblank;
 78	int last_vblank_valid;
 79	unsigned usec_per_vblank;
 80	atomic_t vbl_received;
 81	drm_via_state_t hc_state;
 82	char pci_buf[VIA_PCI_BUF_SIZE];
 83	const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
 84	uint32_t num_fire_offsets;
 85	int chipset;
 86	drm_via_irq_t via_irqs[VIA_NUM_IRQS];
 87	unsigned num_irqs;
 88	maskarray_t *irq_masks;
 89	uint32_t irq_enable_mask;
 90	uint32_t irq_pending_mask;
 91	int *irq_map;
 92	unsigned int idle_fault;
 93	int vram_initialized;
 94	struct drm_mm vram_mm;
 95	int agp_initialized;
 96	struct drm_mm agp_mm;
 97	/** Mapping of userspace keys to mm objects */
 98	struct idr object_idr;
 99	unsigned long vram_offset;
100	unsigned long agp_offset;
101	drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
102	uint32_t dma_diff;
103} drm_via_private_t;
104
105struct via_file_private {
106	struct list_head obj_list;
107};
108
109enum via_family {
110  VIA_OTHER = 0,     /* Baseline */
111  VIA_PRO_GROUP_A,   /* Another video engine and DMA commands */
112  VIA_DX9_0          /* Same video as pro_group_a, but 3D is unsupported */
113};
114
115/* VIA MMIO register access */
116#define VIA_BASE ((dev_priv->mmio))
117
118#define VIA_READ(reg)		DRM_READ32(VIA_BASE, reg)
119#define VIA_WRITE(reg, val)	DRM_WRITE32(VIA_BASE, reg, val)
120#define VIA_READ8(reg)		DRM_READ8(VIA_BASE, reg)
121#define VIA_WRITE8(reg, val)	DRM_WRITE8(VIA_BASE, reg, val)
122
123extern const struct drm_ioctl_desc via_ioctls[];
124extern int via_max_ioctl;
125
126extern int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
127extern int via_mem_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv);
128extern int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv);
129extern int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
130extern int via_map_init(struct drm_device *dev, void *data, struct drm_file *file_priv);
131extern int via_decoder_futex(struct drm_device *dev, void *data, struct drm_file *file_priv);
132extern int via_wait_irq(struct drm_device *dev, void *data, struct drm_file *file_priv);
133extern int via_dma_blit_sync(struct drm_device *dev, void *data, struct drm_file *file_priv);
134extern int via_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv);
135
136extern int via_driver_load(struct drm_device *dev, unsigned long chipset);
137extern int via_driver_unload(struct drm_device *dev);
138
139extern int via_init_context(struct drm_device *dev, int context);
140extern int via_final_context(struct drm_device *dev, int context);
141
142extern int via_do_cleanup_map(struct drm_device *dev);
143extern u32 via_get_vblank_counter(struct drm_device *dev, unsigned int pipe);
144extern int via_enable_vblank(struct drm_device *dev, unsigned int pipe);
145extern void via_disable_vblank(struct drm_device *dev, unsigned int pipe);
146
147extern irqreturn_t via_driver_irq_handler(int irq, void *arg);
148extern void via_driver_irq_preinstall(struct drm_device *dev);
149extern int via_driver_irq_postinstall(struct drm_device *dev);
150extern void via_driver_irq_uninstall(struct drm_device *dev);
151
152extern int via_dma_cleanup(struct drm_device *dev);
153extern void via_init_command_verifier(void);
154extern int via_driver_dma_quiescent(struct drm_device *dev);
155extern void via_init_futex(drm_via_private_t *dev_priv);
156extern void via_cleanup_futex(drm_via_private_t *dev_priv);
157extern void via_release_futex(drm_via_private_t *dev_priv, int context);
158
159extern void via_reclaim_buffers_locked(struct drm_device *dev,
160				       struct drm_file *file_priv);
161extern void via_lastclose(struct drm_device *dev);
162
163extern void via_dmablit_handler(struct drm_device *dev, int engine, int from_irq);
164extern void via_init_dmablit(struct drm_device *dev);
165
166#endif