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/* sis_drv.h -- Private header for sis driver -*- linux-c -*- */
/*
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * PRECISION INSIGHT 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 _SIS_DRV_H_
#define _SIS_DRV_H_

/* General customization:
 */

#define DRIVER_AUTHOR		"SIS, Tungsten Graphics"
#define DRIVER_NAME		"sis"
#define DRIVER_DESC		"SIS 300/630/540 and XGI V3XE/V5/V8"
#define DRIVER_DATE		"20070626"
#define DRIVER_MAJOR		1
#define DRIVER_MINOR		3
#define DRIVER_PATCHLEVEL	0

enum sis_family {
	SIS_OTHER = 0,
	SIS_CHIP_315 = 1,
};

#if defined(__linux__)
#define SIS_HAVE_CORE_MM
#endif

#ifdef SIS_HAVE_CORE_MM
#include "drm_sman.h"

#define SIS_BASE (dev_priv->mmio)
#define SIS_READ(reg)	 DRM_READ32(SIS_BASE, reg);
#define SIS_WRITE(reg, val)   DRM_WRITE32(SIS_BASE, reg, val);

typedef struct drm_sis_private {
	drm_local_map_t *mmio;
	unsigned int idle_fault;
	struct drm_sman sman;
	unsigned int chipset;
	int vram_initialized;
	int agp_initialized;
	unsigned long vram_offset;
	unsigned long agp_offset;
} drm_sis_private_t;

extern int sis_idle(struct drm_device *dev);
extern void sis_reclaim_buffers_locked(struct drm_device *dev,
				       struct drm_file *file_priv);
extern void sis_lastclose(struct drm_device *dev);

#else
#include "sis_ds.h"

typedef struct drm_sis_private {
	memHeap_t *AGPHeap;
	memHeap_t *FBHeap;
} drm_sis_private_t;

extern int sis_init_context(struct drm_device * dev, int context);
extern int sis_final_context(struct drm_device * dev, int context);

#endif

extern struct drm_ioctl_desc sis_ioctls[];
extern int sis_max_ioctl;

#endif
pan> #include "drmP.h" #if __HAVE_DMA_WAITLIST int DRM(waitlist_create)(drm_waitlist_t *bl, int count) { if (bl->count) return -EINVAL; bl->bufs = DRM(alloc)((bl->count + 2) * sizeof(*bl->bufs), DRM_MEM_BUFLISTS); if(!bl->bufs) return -ENOMEM; memset(bl->bufs, 0, sizeof(*bl->bufs)); bl->count = count; bl->rp = bl->bufs; bl->wp = bl->bufs; bl->end = &bl->bufs[bl->count+1]; bl->write_lock = SPIN_LOCK_UNLOCKED; bl->read_lock = SPIN_LOCK_UNLOCKED; return 0; } int DRM(waitlist_destroy)(drm_waitlist_t *bl) { if (bl->rp != bl->wp) return -EINVAL; if (bl->bufs) DRM(free)(bl->bufs, (bl->count + 2) * sizeof(*bl->bufs), DRM_MEM_BUFLISTS); bl->count = 0; bl->bufs = NULL; bl->rp = NULL; bl->wp = NULL; bl->end = NULL; return 0; } int DRM(waitlist_put)(drm_waitlist_t *bl, drm_buf_t *buf) { int left; unsigned long flags; left = DRM_LEFTCOUNT(bl); if (!left) { DRM_ERROR("Overflow while adding buffer %d from pid %d\n", buf->idx, buf->pid); return -EINVAL; } #if __HAVE_DMA_HISTOGRAM buf->time_queued = get_cycles(); #endif buf->list = DRM_LIST_WAIT; spin_lock_irqsave(&bl->write_lock, flags); *bl->wp = buf; if (++bl->wp >= bl->end) bl->wp = bl->bufs; spin_unlock_irqrestore(&bl->write_lock, flags); return 0; } drm_buf_t *DRM(waitlist_get)(drm_waitlist_t *bl) { drm_buf_t *buf; unsigned long flags; spin_lock_irqsave(&bl->read_lock, flags); buf = *bl->rp; if (bl->rp == bl->wp) { spin_unlock_irqrestore(&bl->read_lock, flags); return NULL; } if (++bl->rp >= bl->end) bl->rp = bl->bufs; spin_unlock_irqrestore(&bl->read_lock, flags); return buf; } #endif /* __HAVE_DMA_WAITLIST */ #if __HAVE_DMA_FREELIST int DRM(freelist_create)(drm_freelist_t *bl, int count) { atomic_set(&bl->count, 0); bl->next = NULL; init_waitqueue_head(&bl->waiting); bl->low_mark = 0; bl->high_mark = 0; atomic_set(&bl->wfh, 0); bl->lock = SPIN_LOCK_UNLOCKED; ++bl->initialized; return 0; } int DRM(freelist_destroy)(drm_freelist_t *bl) { atomic_set(&bl->count, 0); bl->next = NULL; return 0; } int DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf) { drm_device_dma_t *dma = dev->dma; if (!dma) { DRM_ERROR("No DMA support\n"); return 1; } if (buf->waiting || buf->pending || buf->list == DRM_LIST_FREE) { DRM_ERROR("Freed buffer %d: w%d, p%d, l%d\n", buf->idx, buf->waiting, buf->pending, buf->list); } if (!bl) return 1; #if __HAVE_DMA_HISTOGRAM buf->time_freed = get_cycles(); DRM(histogram_compute)(dev, buf); #endif buf->list = DRM_LIST_FREE; spin_lock(&bl->lock); buf->next = bl->next; bl->next = buf; spin_unlock(&bl->lock); atomic_inc(&bl->count); if (atomic_read(&bl->count) > dma->buf_count) { DRM_ERROR("%d of %d buffers free after addition of %d\n", atomic_read(&bl->count), dma->buf_count, buf->idx); return 1; } /* Check for high water mark */ if (atomic_read(&bl->wfh) && atomic_read(&bl->count)>=bl->high_mark) { atomic_set(&bl->wfh, 0); wake_up_interruptible(&bl->waiting); } return 0; } static drm_buf_t *DRM(freelist_try)(drm_freelist_t *bl) { drm_buf_t *buf; if (!bl) return NULL; /* Get buffer */ spin_lock(&bl->lock); if (!bl->next) { spin_unlock(&bl->lock); return NULL; } buf = bl->next; bl->next = bl->next->next; spin_unlock(&bl->lock); atomic_dec(&bl->count); buf->next = NULL; buf->list = DRM_LIST_NONE; if (buf->waiting || buf->pending) { DRM_ERROR("Free buffer %d: w%d, p%d, l%d\n", buf->idx, buf->waiting, buf->pending, buf->list); } return buf; } drm_buf_t *DRM(freelist_get)(drm_freelist_t *bl, int block) { drm_buf_t *buf = NULL; DECLARE_WAITQUEUE(entry, current); if (!bl || !bl->initialized) return NULL; /* Check for low water mark */ if (atomic_read(&bl->count) <= bl->low_mark) /* Became low */ atomic_set(&bl->wfh, 1); if (atomic_read(&bl->wfh)) { if (block) { add_wait_queue(&bl->waiting, &entry); for (;;) { current->state = TASK_INTERRUPTIBLE; if (!atomic_read(&bl->wfh) && (buf = DRM(freelist_try)(bl))) break; schedule(); if (signal_pending(current)) break; } current->state = TASK_RUNNING; remove_wait_queue(&bl->waiting, &entry); } return buf; } return DRM(freelist_try)(bl); } #endif /* __HAVE_DMA_FREELIST */