![Linus Torvalds](/assets/img/avatar_default.png)
* 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: vfs: make no_llseek the default vfs: don't use BKL in default_llseek llseek: automatically add .llseek fop libfs: use generic_file_llseek for simple_attr mac80211: disallow seeks in minstrel debug code lirc: make chardev nonseekable viotape: use noop_llseek raw: use explicit llseek file operations ibmasmfs: use generic_file_llseek spufs: use llseek in all file operations arm/omap: use generic_file_llseek in iommu_debug lkdtm: use generic_file_llseek in debugfs net/wireless: use generic_file_llseek in debugfs drm: use noop_llseek
1293 lines
33 KiB
C
1293 lines
33 KiB
C
/* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
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* Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors: Rickard E. (Rik) Faith <faith@valinux.com>
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* Jeff Hartmann <jhartmann@valinux.com>
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* Keith Whitwell <keith@tungstengraphics.com>
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "i810_drm.h"
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#include "i810_drv.h"
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#include <linux/interrupt.h> /* For task queue support */
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/smp_lock.h>
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#include <linux/pagemap.h>
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#define I810_BUF_FREE 2
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#define I810_BUF_CLIENT 1
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#define I810_BUF_HARDWARE 0
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#define I810_BUF_UNMAPPED 0
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#define I810_BUF_MAPPED 1
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static struct drm_buf *i810_freelist_get(struct drm_device * dev)
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{
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struct drm_device_dma *dma = dev->dma;
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int i;
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int used;
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/* Linear search might not be the best solution */
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for (i = 0; i < dma->buf_count; i++) {
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struct drm_buf *buf = dma->buflist[i];
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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/* In use is already a pointer */
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used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
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I810_BUF_CLIENT);
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if (used == I810_BUF_FREE)
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return buf;
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}
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return NULL;
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}
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/* This should only be called if the buffer is not sent to the hardware
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* yet, the hardware updates in use for us once its on the ring buffer.
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*/
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static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
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{
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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int used;
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/* In use is already a pointer */
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used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
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if (used != I810_BUF_CLIENT) {
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DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
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return -EINVAL;
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}
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return 0;
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}
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static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
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{
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struct drm_file *priv = filp->private_data;
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struct drm_device *dev;
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drm_i810_private_t *dev_priv;
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struct drm_buf *buf;
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drm_i810_buf_priv_t *buf_priv;
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lock_kernel();
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dev = priv->minor->dev;
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dev_priv = dev->dev_private;
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buf = dev_priv->mmap_buffer;
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buf_priv = buf->dev_private;
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vma->vm_flags |= (VM_IO | VM_DONTCOPY);
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vma->vm_file = filp;
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buf_priv->currently_mapped = I810_BUF_MAPPED;
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unlock_kernel();
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if (io_remap_pfn_range(vma, vma->vm_start,
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vma->vm_pgoff,
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vma->vm_end - vma->vm_start, vma->vm_page_prot))
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return -EAGAIN;
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return 0;
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}
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static const struct file_operations i810_buffer_fops = {
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.open = drm_open,
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.release = drm_release,
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.unlocked_ioctl = i810_ioctl,
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.mmap = i810_mmap_buffers,
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.fasync = drm_fasync,
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.llseek = noop_llseek,
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};
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static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
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{
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struct drm_device *dev = file_priv->minor->dev;
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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drm_i810_private_t *dev_priv = dev->dev_private;
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const struct file_operations *old_fops;
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int retcode = 0;
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if (buf_priv->currently_mapped == I810_BUF_MAPPED)
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return -EINVAL;
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down_write(¤t->mm->mmap_sem);
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old_fops = file_priv->filp->f_op;
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file_priv->filp->f_op = &i810_buffer_fops;
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dev_priv->mmap_buffer = buf;
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buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
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PROT_READ | PROT_WRITE,
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MAP_SHARED, buf->bus_address);
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dev_priv->mmap_buffer = NULL;
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file_priv->filp->f_op = old_fops;
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if (IS_ERR(buf_priv->virtual)) {
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/* Real error */
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DRM_ERROR("mmap error\n");
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retcode = PTR_ERR(buf_priv->virtual);
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buf_priv->virtual = NULL;
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}
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up_write(¤t->mm->mmap_sem);
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return retcode;
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}
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static int i810_unmap_buffer(struct drm_buf *buf)
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{
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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int retcode = 0;
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if (buf_priv->currently_mapped != I810_BUF_MAPPED)
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return -EINVAL;
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down_write(¤t->mm->mmap_sem);
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retcode = do_munmap(current->mm,
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(unsigned long)buf_priv->virtual,
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(size_t) buf->total);
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up_write(¤t->mm->mmap_sem);
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buf_priv->currently_mapped = I810_BUF_UNMAPPED;
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buf_priv->virtual = NULL;
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return retcode;
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}
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static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
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struct drm_file *file_priv)
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{
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struct drm_buf *buf;
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drm_i810_buf_priv_t *buf_priv;
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int retcode = 0;
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buf = i810_freelist_get(dev);
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if (!buf) {
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retcode = -ENOMEM;
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DRM_DEBUG("retcode=%d\n", retcode);
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return retcode;
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}
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retcode = i810_map_buffer(buf, file_priv);
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if (retcode) {
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i810_freelist_put(dev, buf);
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DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
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return retcode;
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}
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buf->file_priv = file_priv;
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buf_priv = buf->dev_private;
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d->granted = 1;
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d->request_idx = buf->idx;
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d->request_size = buf->total;
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d->virtual = buf_priv->virtual;
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return retcode;
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}
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static int i810_dma_cleanup(struct drm_device *dev)
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{
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struct drm_device_dma *dma = dev->dma;
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/* Make sure interrupts are disabled here because the uninstall ioctl
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* may not have been called from userspace and after dev_private
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* is freed, it's too late.
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*/
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if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
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drm_irq_uninstall(dev);
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if (dev->dev_private) {
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int i;
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drm_i810_private_t *dev_priv =
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(drm_i810_private_t *) dev->dev_private;
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if (dev_priv->ring.virtual_start)
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drm_core_ioremapfree(&dev_priv->ring.map, dev);
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if (dev_priv->hw_status_page) {
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pci_free_consistent(dev->pdev, PAGE_SIZE,
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dev_priv->hw_status_page,
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dev_priv->dma_status_page);
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/* Need to rewrite hardware status page */
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I810_WRITE(0x02080, 0x1ffff000);
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}
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kfree(dev->dev_private);
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dev->dev_private = NULL;
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for (i = 0; i < dma->buf_count; i++) {
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struct drm_buf *buf = dma->buflist[i];
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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if (buf_priv->kernel_virtual && buf->total)
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drm_core_ioremapfree(&buf_priv->map, dev);
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}
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}
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return 0;
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}
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static int i810_wait_ring(struct drm_device *dev, int n)
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{
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drm_i810_private_t *dev_priv = dev->dev_private;
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drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
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int iters = 0;
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unsigned long end;
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unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
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end = jiffies + (HZ * 3);
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while (ring->space < n) {
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ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
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ring->space = ring->head - (ring->tail + 8);
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if (ring->space < 0)
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ring->space += ring->Size;
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if (ring->head != last_head) {
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end = jiffies + (HZ * 3);
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last_head = ring->head;
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}
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iters++;
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if (time_before(end, jiffies)) {
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DRM_ERROR("space: %d wanted %d\n", ring->space, n);
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DRM_ERROR("lockup\n");
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goto out_wait_ring;
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}
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udelay(1);
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}
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out_wait_ring:
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return iters;
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}
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static void i810_kernel_lost_context(struct drm_device *dev)
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{
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drm_i810_private_t *dev_priv = dev->dev_private;
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drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
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ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
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ring->tail = I810_READ(LP_RING + RING_TAIL);
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ring->space = ring->head - (ring->tail + 8);
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if (ring->space < 0)
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ring->space += ring->Size;
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}
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static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
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{
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struct drm_device_dma *dma = dev->dma;
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int my_idx = 24;
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u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
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int i;
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if (dma->buf_count > 1019) {
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/* Not enough space in the status page for the freelist */
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return -EINVAL;
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}
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for (i = 0; i < dma->buf_count; i++) {
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struct drm_buf *buf = dma->buflist[i];
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drm_i810_buf_priv_t *buf_priv = buf->dev_private;
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buf_priv->in_use = hw_status++;
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buf_priv->my_use_idx = my_idx;
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my_idx += 4;
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*buf_priv->in_use = I810_BUF_FREE;
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buf_priv->map.offset = buf->bus_address;
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buf_priv->map.size = buf->total;
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buf_priv->map.type = _DRM_AGP;
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buf_priv->map.flags = 0;
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buf_priv->map.mtrr = 0;
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drm_core_ioremap(&buf_priv->map, dev);
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buf_priv->kernel_virtual = buf_priv->map.handle;
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}
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return 0;
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}
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static int i810_dma_initialize(struct drm_device *dev,
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drm_i810_private_t *dev_priv,
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drm_i810_init_t *init)
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{
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struct drm_map_list *r_list;
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memset(dev_priv, 0, sizeof(drm_i810_private_t));
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list_for_each_entry(r_list, &dev->maplist, head) {
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if (r_list->map &&
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r_list->map->type == _DRM_SHM &&
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r_list->map->flags & _DRM_CONTAINS_LOCK) {
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dev_priv->sarea_map = r_list->map;
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break;
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}
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}
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if (!dev_priv->sarea_map) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("can not find sarea!\n");
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return -EINVAL;
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}
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dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
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if (!dev_priv->mmio_map) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("can not find mmio map!\n");
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return -EINVAL;
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}
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dev->agp_buffer_token = init->buffers_offset;
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dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
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if (!dev->agp_buffer_map) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("can not find dma buffer map!\n");
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return -EINVAL;
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}
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dev_priv->sarea_priv = (drm_i810_sarea_t *)
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((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
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dev_priv->ring.Start = init->ring_start;
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dev_priv->ring.End = init->ring_end;
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dev_priv->ring.Size = init->ring_size;
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dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
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dev_priv->ring.map.size = init->ring_size;
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dev_priv->ring.map.type = _DRM_AGP;
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dev_priv->ring.map.flags = 0;
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dev_priv->ring.map.mtrr = 0;
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drm_core_ioremap(&dev_priv->ring.map, dev);
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if (dev_priv->ring.map.handle == NULL) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("can not ioremap virtual address for"
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" ring buffer\n");
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return -ENOMEM;
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}
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dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
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dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
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dev_priv->w = init->w;
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dev_priv->h = init->h;
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dev_priv->pitch = init->pitch;
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dev_priv->back_offset = init->back_offset;
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dev_priv->depth_offset = init->depth_offset;
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dev_priv->front_offset = init->front_offset;
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dev_priv->overlay_offset = init->overlay_offset;
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dev_priv->overlay_physical = init->overlay_physical;
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dev_priv->front_di1 = init->front_offset | init->pitch_bits;
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dev_priv->back_di1 = init->back_offset | init->pitch_bits;
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dev_priv->zi1 = init->depth_offset | init->pitch_bits;
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/* Program Hardware Status Page */
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dev_priv->hw_status_page =
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pci_alloc_consistent(dev->pdev, PAGE_SIZE,
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&dev_priv->dma_status_page);
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if (!dev_priv->hw_status_page) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("Can not allocate hardware status page\n");
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return -ENOMEM;
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}
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memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
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DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
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I810_WRITE(0x02080, dev_priv->dma_status_page);
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DRM_DEBUG("Enabled hardware status page\n");
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/* Now we need to init our freelist */
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if (i810_freelist_init(dev, dev_priv) != 0) {
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dev->dev_private = (void *)dev_priv;
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i810_dma_cleanup(dev);
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DRM_ERROR("Not enough space in the status page for"
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" the freelist\n");
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return -ENOMEM;
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}
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dev->dev_private = (void *)dev_priv;
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return 0;
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}
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static int i810_dma_init(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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drm_i810_private_t *dev_priv;
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drm_i810_init_t *init = data;
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int retcode = 0;
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switch (init->func) {
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case I810_INIT_DMA_1_4:
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DRM_INFO("Using v1.4 init.\n");
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dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
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if (dev_priv == NULL)
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return -ENOMEM;
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retcode = i810_dma_initialize(dev, dev_priv, init);
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break;
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case I810_CLEANUP_DMA:
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DRM_INFO("DMA Cleanup\n");
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retcode = i810_dma_cleanup(dev);
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break;
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default:
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return -EINVAL;
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}
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|
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return retcode;
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}
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|
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/* Most efficient way to verify state for the i810 is as it is
|
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* emitted. Non-conformant state is silently dropped.
|
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*
|
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* Use 'volatile' & local var tmp to force the emitted values to be
|
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* identical to the verified ones.
|
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*/
|
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static void i810EmitContextVerified(struct drm_device *dev,
|
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volatile unsigned int *code)
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{
|
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drm_i810_private_t *dev_priv = dev->dev_private;
|
|
int i, j = 0;
|
|
unsigned int tmp;
|
|
RING_LOCALS;
|
|
|
|
BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
|
|
|
|
OUT_RING(GFX_OP_COLOR_FACTOR);
|
|
OUT_RING(code[I810_CTXREG_CF1]);
|
|
|
|
OUT_RING(GFX_OP_STIPPLE);
|
|
OUT_RING(code[I810_CTXREG_ST1]);
|
|
|
|
for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
|
|
tmp = code[i];
|
|
|
|
if ((tmp & (7 << 29)) == (3 << 29) &&
|
|
(tmp & (0x1f << 24)) < (0x1d << 24)) {
|
|
OUT_RING(tmp);
|
|
j++;
|
|
} else
|
|
printk("constext state dropped!!!\n");
|
|
}
|
|
|
|
if (j & 1)
|
|
OUT_RING(0);
|
|
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
int i, j = 0;
|
|
unsigned int tmp;
|
|
RING_LOCALS;
|
|
|
|
BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
|
|
|
|
OUT_RING(GFX_OP_MAP_INFO);
|
|
OUT_RING(code[I810_TEXREG_MI1]);
|
|
OUT_RING(code[I810_TEXREG_MI2]);
|
|
OUT_RING(code[I810_TEXREG_MI3]);
|
|
|
|
for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
|
|
tmp = code[i];
|
|
|
|
if ((tmp & (7 << 29)) == (3 << 29) &&
|
|
(tmp & (0x1f << 24)) < (0x1d << 24)) {
|
|
OUT_RING(tmp);
|
|
j++;
|
|
} else
|
|
printk("texture state dropped!!!\n");
|
|
}
|
|
|
|
if (j & 1)
|
|
OUT_RING(0);
|
|
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
/* Need to do some additional checking when setting the dest buffer.
|
|
*/
|
|
static void i810EmitDestVerified(struct drm_device *dev,
|
|
volatile unsigned int *code)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
unsigned int tmp;
|
|
RING_LOCALS;
|
|
|
|
BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
|
|
|
|
tmp = code[I810_DESTREG_DI1];
|
|
if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
|
|
OUT_RING(CMD_OP_DESTBUFFER_INFO);
|
|
OUT_RING(tmp);
|
|
} else
|
|
DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
|
|
tmp, dev_priv->front_di1, dev_priv->back_di1);
|
|
|
|
/* invarient:
|
|
*/
|
|
OUT_RING(CMD_OP_Z_BUFFER_INFO);
|
|
OUT_RING(dev_priv->zi1);
|
|
|
|
OUT_RING(GFX_OP_DESTBUFFER_VARS);
|
|
OUT_RING(code[I810_DESTREG_DV1]);
|
|
|
|
OUT_RING(GFX_OP_DRAWRECT_INFO);
|
|
OUT_RING(code[I810_DESTREG_DR1]);
|
|
OUT_RING(code[I810_DESTREG_DR2]);
|
|
OUT_RING(code[I810_DESTREG_DR3]);
|
|
OUT_RING(code[I810_DESTREG_DR4]);
|
|
OUT_RING(0);
|
|
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
static void i810EmitState(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
|
|
unsigned int dirty = sarea_priv->dirty;
|
|
|
|
DRM_DEBUG("%x\n", dirty);
|
|
|
|
if (dirty & I810_UPLOAD_BUFFERS) {
|
|
i810EmitDestVerified(dev, sarea_priv->BufferState);
|
|
sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
|
|
}
|
|
|
|
if (dirty & I810_UPLOAD_CTX) {
|
|
i810EmitContextVerified(dev, sarea_priv->ContextState);
|
|
sarea_priv->dirty &= ~I810_UPLOAD_CTX;
|
|
}
|
|
|
|
if (dirty & I810_UPLOAD_TEX0) {
|
|
i810EmitTexVerified(dev, sarea_priv->TexState[0]);
|
|
sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
|
|
}
|
|
|
|
if (dirty & I810_UPLOAD_TEX1) {
|
|
i810EmitTexVerified(dev, sarea_priv->TexState[1]);
|
|
sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
|
|
}
|
|
}
|
|
|
|
/* need to verify
|
|
*/
|
|
static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
|
|
unsigned int clear_color,
|
|
unsigned int clear_zval)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
|
|
int nbox = sarea_priv->nbox;
|
|
struct drm_clip_rect *pbox = sarea_priv->boxes;
|
|
int pitch = dev_priv->pitch;
|
|
int cpp = 2;
|
|
int i;
|
|
RING_LOCALS;
|
|
|
|
if (dev_priv->current_page == 1) {
|
|
unsigned int tmp = flags;
|
|
|
|
flags &= ~(I810_FRONT | I810_BACK);
|
|
if (tmp & I810_FRONT)
|
|
flags |= I810_BACK;
|
|
if (tmp & I810_BACK)
|
|
flags |= I810_FRONT;
|
|
}
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
if (nbox > I810_NR_SAREA_CLIPRECTS)
|
|
nbox = I810_NR_SAREA_CLIPRECTS;
|
|
|
|
for (i = 0; i < nbox; i++, pbox++) {
|
|
unsigned int x = pbox->x1;
|
|
unsigned int y = pbox->y1;
|
|
unsigned int width = (pbox->x2 - x) * cpp;
|
|
unsigned int height = pbox->y2 - y;
|
|
unsigned int start = y * pitch + x * cpp;
|
|
|
|
if (pbox->x1 > pbox->x2 ||
|
|
pbox->y1 > pbox->y2 ||
|
|
pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
|
|
continue;
|
|
|
|
if (flags & I810_FRONT) {
|
|
BEGIN_LP_RING(6);
|
|
OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
|
|
OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
|
|
OUT_RING((height << 16) | width);
|
|
OUT_RING(start);
|
|
OUT_RING(clear_color);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
if (flags & I810_BACK) {
|
|
BEGIN_LP_RING(6);
|
|
OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
|
|
OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
|
|
OUT_RING((height << 16) | width);
|
|
OUT_RING(dev_priv->back_offset + start);
|
|
OUT_RING(clear_color);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
if (flags & I810_DEPTH) {
|
|
BEGIN_LP_RING(6);
|
|
OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
|
|
OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
|
|
OUT_RING((height << 16) | width);
|
|
OUT_RING(dev_priv->depth_offset + start);
|
|
OUT_RING(clear_zval);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
}
|
|
}
|
|
|
|
static void i810_dma_dispatch_swap(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
|
|
int nbox = sarea_priv->nbox;
|
|
struct drm_clip_rect *pbox = sarea_priv->boxes;
|
|
int pitch = dev_priv->pitch;
|
|
int cpp = 2;
|
|
int i;
|
|
RING_LOCALS;
|
|
|
|
DRM_DEBUG("swapbuffers\n");
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
if (nbox > I810_NR_SAREA_CLIPRECTS)
|
|
nbox = I810_NR_SAREA_CLIPRECTS;
|
|
|
|
for (i = 0; i < nbox; i++, pbox++) {
|
|
unsigned int w = pbox->x2 - pbox->x1;
|
|
unsigned int h = pbox->y2 - pbox->y1;
|
|
unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
|
|
unsigned int start = dst;
|
|
|
|
if (pbox->x1 > pbox->x2 ||
|
|
pbox->y1 > pbox->y2 ||
|
|
pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
|
|
continue;
|
|
|
|
BEGIN_LP_RING(6);
|
|
OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
|
|
OUT_RING(pitch | (0xCC << 16));
|
|
OUT_RING((h << 16) | (w * cpp));
|
|
if (dev_priv->current_page == 0)
|
|
OUT_RING(dev_priv->front_offset + start);
|
|
else
|
|
OUT_RING(dev_priv->back_offset + start);
|
|
OUT_RING(pitch);
|
|
if (dev_priv->current_page == 0)
|
|
OUT_RING(dev_priv->back_offset + start);
|
|
else
|
|
OUT_RING(dev_priv->front_offset + start);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
}
|
|
|
|
static void i810_dma_dispatch_vertex(struct drm_device *dev,
|
|
struct drm_buf *buf, int discard, int used)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
|
|
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
|
|
struct drm_clip_rect *box = sarea_priv->boxes;
|
|
int nbox = sarea_priv->nbox;
|
|
unsigned long address = (unsigned long)buf->bus_address;
|
|
unsigned long start = address - dev->agp->base;
|
|
int i = 0;
|
|
RING_LOCALS;
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
if (nbox > I810_NR_SAREA_CLIPRECTS)
|
|
nbox = I810_NR_SAREA_CLIPRECTS;
|
|
|
|
if (used > 4 * 1024)
|
|
used = 0;
|
|
|
|
if (sarea_priv->dirty)
|
|
i810EmitState(dev);
|
|
|
|
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
|
|
unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
|
|
|
|
*(u32 *) buf_priv->kernel_virtual =
|
|
((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
|
|
|
|
if (used & 4) {
|
|
*(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
|
|
used += 4;
|
|
}
|
|
|
|
i810_unmap_buffer(buf);
|
|
}
|
|
|
|
if (used) {
|
|
do {
|
|
if (i < nbox) {
|
|
BEGIN_LP_RING(4);
|
|
OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
|
|
SC_ENABLE);
|
|
OUT_RING(GFX_OP_SCISSOR_INFO);
|
|
OUT_RING(box[i].x1 | (box[i].y1 << 16));
|
|
OUT_RING((box[i].x2 -
|
|
1) | ((box[i].y2 - 1) << 16));
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
BEGIN_LP_RING(4);
|
|
OUT_RING(CMD_OP_BATCH_BUFFER);
|
|
OUT_RING(start | BB1_PROTECTED);
|
|
OUT_RING(start + used - 4);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
} while (++i < nbox);
|
|
}
|
|
|
|
if (discard) {
|
|
dev_priv->counter++;
|
|
|
|
(void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
|
|
I810_BUF_HARDWARE);
|
|
|
|
BEGIN_LP_RING(8);
|
|
OUT_RING(CMD_STORE_DWORD_IDX);
|
|
OUT_RING(20);
|
|
OUT_RING(dev_priv->counter);
|
|
OUT_RING(CMD_STORE_DWORD_IDX);
|
|
OUT_RING(buf_priv->my_use_idx);
|
|
OUT_RING(I810_BUF_FREE);
|
|
OUT_RING(CMD_REPORT_HEAD);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
}
|
|
|
|
static void i810_dma_dispatch_flip(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
int pitch = dev_priv->pitch;
|
|
RING_LOCALS;
|
|
|
|
DRM_DEBUG("page=%d pfCurrentPage=%d\n",
|
|
dev_priv->current_page,
|
|
dev_priv->sarea_priv->pf_current_page);
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
BEGIN_LP_RING(2);
|
|
OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
|
|
/* On i815 at least ASYNC is buggy */
|
|
/* pitch<<5 is from 11.2.8 p158,
|
|
its the pitch / 8 then left shifted 8,
|
|
so (pitch >> 3) << 8 */
|
|
OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
|
|
if (dev_priv->current_page == 0) {
|
|
OUT_RING(dev_priv->back_offset);
|
|
dev_priv->current_page = 1;
|
|
} else {
|
|
OUT_RING(dev_priv->front_offset);
|
|
dev_priv->current_page = 0;
|
|
}
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
BEGIN_LP_RING(2);
|
|
OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
/* Increment the frame counter. The client-side 3D driver must
|
|
* throttle the framerate by waiting for this value before
|
|
* performing the swapbuffer ioctl.
|
|
*/
|
|
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
|
|
|
|
}
|
|
|
|
static void i810_dma_quiescent(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
RING_LOCALS;
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
BEGIN_LP_RING(4);
|
|
OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
|
|
OUT_RING(CMD_REPORT_HEAD);
|
|
OUT_RING(0);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
i810_wait_ring(dev, dev_priv->ring.Size - 8);
|
|
}
|
|
|
|
static int i810_flush_queue(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
struct drm_device_dma *dma = dev->dma;
|
|
int i, ret = 0;
|
|
RING_LOCALS;
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
BEGIN_LP_RING(2);
|
|
OUT_RING(CMD_REPORT_HEAD);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
i810_wait_ring(dev, dev_priv->ring.Size - 8);
|
|
|
|
for (i = 0; i < dma->buf_count; i++) {
|
|
struct drm_buf *buf = dma->buflist[i];
|
|
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
|
|
|
|
int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
|
|
I810_BUF_FREE);
|
|
|
|
if (used == I810_BUF_HARDWARE)
|
|
DRM_DEBUG("reclaimed from HARDWARE\n");
|
|
if (used == I810_BUF_CLIENT)
|
|
DRM_DEBUG("still on client\n");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Must be called with the lock held */
|
|
static void i810_reclaim_buffers(struct drm_device *dev,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_device_dma *dma = dev->dma;
|
|
int i;
|
|
|
|
if (!dma)
|
|
return;
|
|
if (!dev->dev_private)
|
|
return;
|
|
if (!dma->buflist)
|
|
return;
|
|
|
|
i810_flush_queue(dev);
|
|
|
|
for (i = 0; i < dma->buf_count; i++) {
|
|
struct drm_buf *buf = dma->buflist[i];
|
|
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
|
|
|
|
if (buf->file_priv == file_priv && buf_priv) {
|
|
int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
|
|
I810_BUF_FREE);
|
|
|
|
if (used == I810_BUF_CLIENT)
|
|
DRM_DEBUG("reclaimed from client\n");
|
|
if (buf_priv->currently_mapped == I810_BUF_MAPPED)
|
|
buf_priv->currently_mapped = I810_BUF_UNMAPPED;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int i810_flush_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
i810_flush_queue(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int i810_dma_vertex(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_device_dma *dma = dev->dma;
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
u32 *hw_status = dev_priv->hw_status_page;
|
|
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
|
|
dev_priv->sarea_priv;
|
|
drm_i810_vertex_t *vertex = data;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
DRM_DEBUG("idx %d used %d discard %d\n",
|
|
vertex->idx, vertex->used, vertex->discard);
|
|
|
|
if (vertex->idx < 0 || vertex->idx > dma->buf_count)
|
|
return -EINVAL;
|
|
|
|
i810_dma_dispatch_vertex(dev,
|
|
dma->buflist[vertex->idx],
|
|
vertex->discard, vertex->used);
|
|
|
|
atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
|
|
atomic_inc(&dev->counts[_DRM_STAT_DMA]);
|
|
sarea_priv->last_enqueue = dev_priv->counter - 1;
|
|
sarea_priv->last_dispatch = (int)hw_status[5];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i810_clear_bufs(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_clear_t *clear = data;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
/* GH: Someone's doing nasty things... */
|
|
if (!dev->dev_private)
|
|
return -EINVAL;
|
|
|
|
i810_dma_dispatch_clear(dev, clear->flags,
|
|
clear->clear_color, clear->clear_depth);
|
|
return 0;
|
|
}
|
|
|
|
static int i810_swap_bufs(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
DRM_DEBUG("\n");
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
i810_dma_dispatch_swap(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int i810_getage(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
u32 *hw_status = dev_priv->hw_status_page;
|
|
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
|
|
dev_priv->sarea_priv;
|
|
|
|
sarea_priv->last_dispatch = (int)hw_status[5];
|
|
return 0;
|
|
}
|
|
|
|
static int i810_getbuf(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
int retcode = 0;
|
|
drm_i810_dma_t *d = data;
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
u32 *hw_status = dev_priv->hw_status_page;
|
|
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
|
|
dev_priv->sarea_priv;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
d->granted = 0;
|
|
|
|
retcode = i810_dma_get_buffer(dev, d, file_priv);
|
|
|
|
DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
|
|
task_pid_nr(current), retcode, d->granted);
|
|
|
|
sarea_priv->last_dispatch = (int)hw_status[5];
|
|
|
|
return retcode;
|
|
}
|
|
|
|
static int i810_copybuf(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
/* Never copy - 2.4.x doesn't need it */
|
|
return 0;
|
|
}
|
|
|
|
static int i810_docopy(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
/* Never copy - 2.4.x doesn't need it */
|
|
return 0;
|
|
}
|
|
|
|
static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
|
|
unsigned int last_render)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
drm_i810_buf_priv_t *buf_priv = buf->dev_private;
|
|
drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
|
|
unsigned long address = (unsigned long)buf->bus_address;
|
|
unsigned long start = address - dev->agp->base;
|
|
int u;
|
|
RING_LOCALS;
|
|
|
|
i810_kernel_lost_context(dev);
|
|
|
|
u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
|
|
if (u != I810_BUF_CLIENT)
|
|
DRM_DEBUG("MC found buffer that isn't mine!\n");
|
|
|
|
if (used > 4 * 1024)
|
|
used = 0;
|
|
|
|
sarea_priv->dirty = 0x7f;
|
|
|
|
DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
|
|
|
|
dev_priv->counter++;
|
|
DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
|
|
DRM_DEBUG("start : %lx\n", start);
|
|
DRM_DEBUG("used : %d\n", used);
|
|
DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
|
|
|
|
if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
|
|
if (used & 4) {
|
|
*(u32 *) ((char *) buf_priv->virtual + used) = 0;
|
|
used += 4;
|
|
}
|
|
|
|
i810_unmap_buffer(buf);
|
|
}
|
|
BEGIN_LP_RING(4);
|
|
OUT_RING(CMD_OP_BATCH_BUFFER);
|
|
OUT_RING(start | BB1_PROTECTED);
|
|
OUT_RING(start + used - 4);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
|
|
BEGIN_LP_RING(8);
|
|
OUT_RING(CMD_STORE_DWORD_IDX);
|
|
OUT_RING(buf_priv->my_use_idx);
|
|
OUT_RING(I810_BUF_FREE);
|
|
OUT_RING(0);
|
|
|
|
OUT_RING(CMD_STORE_DWORD_IDX);
|
|
OUT_RING(16);
|
|
OUT_RING(last_render);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
static int i810_dma_mc(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_device_dma *dma = dev->dma;
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
u32 *hw_status = dev_priv->hw_status_page;
|
|
drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
|
|
dev_priv->sarea_priv;
|
|
drm_i810_mc_t *mc = data;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
if (mc->idx >= dma->buf_count || mc->idx < 0)
|
|
return -EINVAL;
|
|
|
|
i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
|
|
mc->last_render);
|
|
|
|
atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
|
|
atomic_inc(&dev->counts[_DRM_STAT_DMA]);
|
|
sarea_priv->last_enqueue = dev_priv->counter - 1;
|
|
sarea_priv->last_dispatch = (int)hw_status[5];
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i810_rstatus(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
|
|
return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
|
|
}
|
|
|
|
static int i810_ov0_info(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
drm_i810_overlay_t *ov = data;
|
|
|
|
ov->offset = dev_priv->overlay_offset;
|
|
ov->physical = dev_priv->overlay_physical;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i810_fstatus(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
return I810_READ(0x30008);
|
|
}
|
|
|
|
static int i810_ov0_flip(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
/* Tell the overlay to update */
|
|
I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Not sure why this isn't set all the time:
|
|
*/
|
|
static void i810_do_init_pageflip(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
|
|
DRM_DEBUG("\n");
|
|
dev_priv->page_flipping = 1;
|
|
dev_priv->current_page = 0;
|
|
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
|
|
}
|
|
|
|
static int i810_do_cleanup_pageflip(struct drm_device *dev)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
|
|
DRM_DEBUG("\n");
|
|
if (dev_priv->current_page != 0)
|
|
i810_dma_dispatch_flip(dev);
|
|
|
|
dev_priv->page_flipping = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int i810_flip_bufs(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
if (!dev_priv->page_flipping)
|
|
i810_do_init_pageflip(dev);
|
|
|
|
i810_dma_dispatch_flip(dev);
|
|
return 0;
|
|
}
|
|
|
|
int i810_driver_load(struct drm_device *dev, unsigned long flags)
|
|
{
|
|
/* i810 has 4 more counters */
|
|
dev->counters += 4;
|
|
dev->types[6] = _DRM_STAT_IRQ;
|
|
dev->types[7] = _DRM_STAT_PRIMARY;
|
|
dev->types[8] = _DRM_STAT_SECONDARY;
|
|
dev->types[9] = _DRM_STAT_DMA;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void i810_driver_lastclose(struct drm_device *dev)
|
|
{
|
|
i810_dma_cleanup(dev);
|
|
}
|
|
|
|
void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
|
|
{
|
|
if (dev->dev_private) {
|
|
drm_i810_private_t *dev_priv = dev->dev_private;
|
|
if (dev_priv->page_flipping)
|
|
i810_do_cleanup_pageflip(dev);
|
|
}
|
|
}
|
|
|
|
void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
|
|
struct drm_file *file_priv)
|
|
{
|
|
i810_reclaim_buffers(dev, file_priv);
|
|
}
|
|
|
|
int i810_driver_dma_quiescent(struct drm_device *dev)
|
|
{
|
|
i810_dma_quiescent(dev);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* call the drm_ioctl under the big kernel lock because
|
|
* to lock against the i810_mmap_buffers function.
|
|
*/
|
|
long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
|
|
{
|
|
int ret;
|
|
lock_kernel();
|
|
ret = drm_ioctl(file, cmd, arg);
|
|
unlock_kernel();
|
|
return ret;
|
|
}
|
|
|
|
struct drm_ioctl_desc i810_ioctls[] = {
|
|
DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
|
|
};
|
|
|
|
int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
|
|
|
|
/**
|
|
* Determine if the device really is AGP or not.
|
|
*
|
|
* All Intel graphics chipsets are treated as AGP, even if they are really
|
|
* PCI-e.
|
|
*
|
|
* \param dev The device to be tested.
|
|
*
|
|
* \returns
|
|
* A value of 1 is always retured to indictate every i810 is AGP.
|
|
*/
|
|
int i810_driver_device_is_agp(struct drm_device *dev)
|
|
{
|
|
return 1;
|
|
}
|