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authorEric Anholt <anholt@freebsd.org>2002-08-28 04:33:02 +0000
committerEric Anholt <anholt@freebsd.org>2002-08-28 04:33:02 +0000
commit8a8cfd38df9a48069c4ca56006d219e0eb8ca59c (patch)
treeca8ee9851cf085e7efc05bb38b990c1a5eb030dc /bsd/i830_dma.c
parentfa560b4847fc89aa68251236d3843b97518b1853 (diff)
Remove i8x0 files from the BSD side. These were not actually ported, and
when they do get ported most of them won't live in these directories.
Diffstat (limited to 'bsd/i830_dma.c')
-rw-r--r--bsd/i830_dma.c1420
1 files changed, 0 insertions, 1420 deletions
diff --git a/bsd/i830_dma.c b/bsd/i830_dma.c
deleted file mode 100644
index fbdc9523..00000000
--- a/bsd/i830_dma.c
+++ /dev/null
@@ -1,1420 +0,0 @@
-/* i830_dma.c -- DMA support for the I830 -*- linux-c -*-
- * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
- *
- * 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.
- *
- * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
- * Jeff Hartmann <jhartmann@valinux.com>
- * Keith Whitwell <keithw@valinux.com>
- * Abraham vd Merwe <abraham@2d3d.co.za>
- *
- */
-
-#define __NO_VERSION__
-#include "i830.h"
-#include "drmP.h"
-#include "drm.h"
-#include "i830_drm.h"
-#include "i830_drv.h"
-#include <linux/interrupt.h> /* For task queue support */
-
-/* in case we don't have a 2.3.99-pre6 kernel or later: */
-#ifndef VM_DONTCOPY
-#define VM_DONTCOPY 0
-#endif
-
-#define I830_BUF_FREE 2
-#define I830_BUF_CLIENT 1
-#define I830_BUF_HARDWARE 0
-
-#define I830_BUF_UNMAPPED 0
-#define I830_BUF_MAPPED 1
-
-#define RING_LOCALS unsigned int outring, ringmask; volatile char *virt;
-
-
-#define DO_IDLE_WORKAROUND() \
-do { \
- int _head; \
- int _tail; \
- int _i; \
- do { \
- _head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR; \
- _tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR; \
- for(_i = 0; _i < 65535; _i++); \
- } while(_head != _tail); \
-} while(0)
-
-#define I830_SYNC_WORKAROUND 0
-
-#define BEGIN_LP_RING(n) do { \
- if (I830_VERBOSE) \
- DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", \
- n, __FUNCTION__); \
- if (I830_SYNC_WORKAROUND) \
- DO_IDLE_WORKAROUND(); \
- if (dev_priv->ring.space < n*4) \
- i830_wait_ring(dev, n*4); \
- dev_priv->ring.space -= n*4; \
- outring = dev_priv->ring.tail; \
- ringmask = dev_priv->ring.tail_mask; \
- virt = dev_priv->ring.virtual_start; \
-} while (0)
-
-#define ADVANCE_LP_RING() do { \
- if (I830_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING\n"); \
- dev_priv->ring.tail = outring; \
- I830_WRITE(LP_RING + RING_TAIL, outring); \
-} while(0)
-
-#define OUT_RING(n) do { \
- if (I830_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
- *(volatile unsigned int *)(virt + outring) = n; \
- outring += 4; \
- outring &= ringmask; \
-} while (0)
-
-static inline void i830_print_status_page(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
- drm_i830_private_t *dev_priv = dev->dev_private;
- u32 *temp = (u32 *)dev_priv->hw_status_page;
- int i;
-
- DRM_DEBUG( "hw_status: Interrupt Status : %x\n", temp[0]);
- DRM_DEBUG( "hw_status: LpRing Head ptr : %x\n", temp[1]);
- DRM_DEBUG( "hw_status: IRing Head ptr : %x\n", temp[2]);
- DRM_DEBUG( "hw_status: Reserved : %x\n", temp[3]);
- DRM_DEBUG( "hw_status: Driver Counter : %d\n", temp[5]);
- for(i = 9; i < dma->buf_count + 9; i++) {
- DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 9, temp[i]);
- }
-}
-
-static drm_buf_t *i830_freelist_get(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
- int i;
- int used;
-
- /* Linear search might not be the best solution */
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- /* In use is already a pointer */
- used = cmpxchg(buf_priv->in_use, I830_BUF_FREE,
- I830_BUF_CLIENT);
- if(used == I830_BUF_FREE) {
- return buf;
- }
- }
- return NULL;
-}
-
-/* This should only be called if the buffer is not sent to the hardware
- * yet, the hardware updates in use for us once its on the ring buffer.
- */
-
-static int i830_freelist_put(drm_device_t *dev, drm_buf_t *buf)
-{
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- int used;
-
- /* In use is already a pointer */
- used = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT, I830_BUF_FREE);
- if(used != I830_BUF_CLIENT) {
- DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static struct file_operations i830_buffer_fops = {
- open: DRM(open),
- flush: DRM(flush),
- release: DRM(release),
- ioctl: DRM(ioctl),
- mmap: i830_mmap_buffers,
- read: DRM(read),
- fasync: DRM(fasync),
- poll: DRM(poll),
-};
-
-int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev;
- drm_i830_private_t *dev_priv;
- drm_buf_t *buf;
- drm_i830_buf_priv_t *buf_priv;
-
- lock_kernel();
- dev = priv->dev;
- dev_priv = dev->dev_private;
- buf = dev_priv->mmap_buffer;
- buf_priv = buf->dev_private;
-
- vma->vm_flags |= (VM_IO | VM_DONTCOPY);
- vma->vm_file = filp;
-
- buf_priv->currently_mapped = I830_BUF_MAPPED;
- unlock_kernel();
-
- if (remap_page_range(vma->vm_start,
- VM_OFFSET(vma),
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot)) return -EAGAIN;
- return 0;
-}
-
-static int i830_map_buffer(drm_buf_t *buf, struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- drm_i830_private_t *dev_priv = dev->dev_private;
- struct file_operations *old_fops;
- int retcode = 0;
-
- if(buf_priv->currently_mapped == I830_BUF_MAPPED) return -EINVAL;
-
- if(VM_DONTCOPY != 0) {
-#if LINUX_VERSION_CODE <= 0x020402
- down( &current->mm->mmap_sem );
-#else
- down_write( &current->mm->mmap_sem );
-#endif
- old_fops = filp->f_op;
- filp->f_op = &i830_buffer_fops;
- dev_priv->mmap_buffer = buf;
- buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
- PROT_READ|PROT_WRITE,
- MAP_SHARED,
- buf->bus_address);
- dev_priv->mmap_buffer = NULL;
- filp->f_op = old_fops;
- if ((unsigned long)buf_priv->virtual > -1024UL) {
- /* Real error */
- DRM_DEBUG("mmap error\n");
- retcode = (signed int)buf_priv->virtual;
- buf_priv->virtual = 0;
- }
-#if LINUX_VERSION_CODE <= 0x020402
- up( &current->mm->mmap_sem );
-#else
- up_write( &current->mm->mmap_sem );
-#endif
- } else {
- buf_priv->virtual = buf_priv->kernel_virtual;
- buf_priv->currently_mapped = I830_BUF_MAPPED;
- }
- return retcode;
-}
-
-static int i830_unmap_buffer(drm_buf_t *buf)
-{
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- int retcode = 0;
-
- if(VM_DONTCOPY != 0) {
- if(buf_priv->currently_mapped != I830_BUF_MAPPED)
- return -EINVAL;
-#if LINUX_VERSION_CODE <= 0x020402
- down( &current->mm->mmap_sem );
-#else
- down_write( &current->mm->mmap_sem );
-#endif
-#if LINUX_VERSION_CODE < 0x020399
- retcode = do_munmap((unsigned long)buf_priv->virtual,
- (size_t) buf->total);
-#else
- retcode = do_munmap(current->mm,
- (unsigned long)buf_priv->virtual,
- (size_t) buf->total);
-#endif
-#if LINUX_VERSION_CODE <= 0x020402
- up( &current->mm->mmap_sem );
-#else
- up_write( &current->mm->mmap_sem );
-#endif
- }
- buf_priv->currently_mapped = I830_BUF_UNMAPPED;
- buf_priv->virtual = 0;
-
- return retcode;
-}
-
-static int i830_dma_get_buffer(drm_device_t *dev, drm_i830_dma_t *d,
- struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_buf_t *buf;
- drm_i830_buf_priv_t *buf_priv;
- int retcode = 0;
-
- buf = i830_freelist_get(dev);
- if (!buf) {
- retcode = -ENOMEM;
- DRM_DEBUG("retcode=%d\n", retcode);
- return retcode;
- }
-
- retcode = i830_map_buffer(buf, filp);
- if(retcode) {
- i830_freelist_put(dev, buf);
- DRM_DEBUG("mapbuf failed, retcode %d\n", retcode);
- return retcode;
- }
- buf->pid = priv->pid;
- buf_priv = buf->dev_private;
- d->granted = 1;
- d->request_idx = buf->idx;
- d->request_size = buf->total;
- d->virtual = buf_priv->virtual;
-
- return retcode;
-}
-
-static unsigned long i830_alloc_page(drm_device_t *dev)
-{
- unsigned long address;
-
- address = __get_free_page(GFP_KERNEL);
- if(address == 0UL)
- return 0;
-
- atomic_inc(&virt_to_page(address)->count);
- set_bit(PG_locked, &virt_to_page(address)->flags);
-
- return address;
-}
-
-static void i830_free_page(drm_device_t *dev, unsigned long page)
-{
- if(page == 0UL)
- return;
-
- atomic_dec(&virt_to_page(page)->count);
- clear_bit(PG_locked, &virt_to_page(page)->flags);
- wake_up(&virt_to_page(page)->wait);
- free_page(page);
- return;
-}
-
-static int i830_dma_cleanup(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
-
- if(dev->dev_private) {
- int i;
- drm_i830_private_t *dev_priv =
- (drm_i830_private_t *) dev->dev_private;
-
- if(dev_priv->ring.virtual_start) {
- DRM(ioremapfree)((void *) dev_priv->ring.virtual_start,
- dev_priv->ring.Size);
- }
- if(dev_priv->hw_status_page != 0UL) {
- i830_free_page(dev, dev_priv->hw_status_page);
- /* Need to rewrite hardware status page */
- I830_WRITE(0x02080, 0x1ffff000);
- }
- DRM(free)(dev->dev_private, sizeof(drm_i830_private_t),
- DRM_MEM_DRIVER);
- dev->dev_private = NULL;
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- DRM(ioremapfree)(buf_priv->kernel_virtual, buf->total);
- }
- }
- return 0;
-}
-
-static int i830_wait_ring(drm_device_t *dev, int n)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
- int iters = 0;
- unsigned long end;
- unsigned int last_head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
-
- end = jiffies + (HZ*3);
- while (ring->space < n) {
- int i;
-
- ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- ring->space = ring->head - (ring->tail+8);
- if (ring->space < 0) ring->space += ring->Size;
-
- if (ring->head != last_head) {
- end = jiffies + (HZ*3);
- last_head = ring->head;
- }
-
- iters++;
- if((signed)(end - jiffies) <= 0) {
- DRM_ERROR("space: %d wanted %d\n", ring->space, n);
- DRM_ERROR("lockup\n");
- goto out_wait_ring;
- }
-
- for (i = 0 ; i < 2000 ; i++) ;
- }
-
-out_wait_ring:
- return iters;
-}
-
-static void i830_kernel_lost_context(drm_device_t *dev)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
-
- ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- ring->tail = I830_READ(LP_RING + RING_TAIL);
- ring->space = ring->head - (ring->tail+8);
- if (ring->space < 0) ring->space += ring->Size;
-}
-
-static int i830_freelist_init(drm_device_t *dev, drm_i830_private_t *dev_priv)
-{
- drm_device_dma_t *dma = dev->dma;
- int my_idx = 36;
- u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
- int i;
-
- if(dma->buf_count > 1019) {
- /* Not enough space in the status page for the freelist */
- return -EINVAL;
- }
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
-
- buf_priv->in_use = hw_status++;
- buf_priv->my_use_idx = my_idx;
- my_idx += 4;
-
- *buf_priv->in_use = I830_BUF_FREE;
-
- buf_priv->kernel_virtual = DRM(ioremap)(buf->bus_address,
- buf->total);
- }
- return 0;
-}
-
-static int i830_dma_initialize(drm_device_t *dev,
- drm_i830_private_t *dev_priv,
- drm_i830_init_t *init)
-{
- struct list_head *list;
-
- memset(dev_priv, 0, sizeof(drm_i830_private_t));
-
- list_for_each(list, &dev->maplist->head) {
- drm_map_list_t *r_list = (drm_map_list_t *)list;
- if( r_list->map &&
- r_list->map->type == _DRM_SHM &&
- r_list->map->flags & _DRM_CONTAINS_LOCK ) {
- dev_priv->sarea_map = r_list->map;
- break;
- }
- }
-
- if(!dev_priv->sarea_map) {
- dev->dev_private = (void *)dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("can not find sarea!\n");
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->mmio_map, init->mmio_offset );
- if(!dev_priv->mmio_map) {
- dev->dev_private = (void *)dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("can not find mmio map!\n");
- return -EINVAL;
- }
- DRM_FIND_MAP( dev_priv->buffer_map, init->buffers_offset );
- if(!dev_priv->buffer_map) {
- dev->dev_private = (void *)dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("can not find dma buffer map!\n");
- return -EINVAL;
- }
-
- dev_priv->sarea_priv = (drm_i830_sarea_t *)
- ((u8 *)dev_priv->sarea_map->handle +
- init->sarea_priv_offset);
-
- atomic_set(&dev_priv->flush_done, 0);
- init_waitqueue_head(&dev_priv->flush_queue);
-
- dev_priv->ring.Start = init->ring_start;
- dev_priv->ring.End = init->ring_end;
- dev_priv->ring.Size = init->ring_size;
-
- dev_priv->ring.virtual_start = DRM(ioremap)(dev->agp->base +
- init->ring_start,
- init->ring_size);
-
- if (dev_priv->ring.virtual_start == NULL) {
- dev->dev_private = (void *) dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- return -ENOMEM;
- }
-
- dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
-
- dev_priv->w = init->w;
- dev_priv->h = init->h;
- dev_priv->pitch = init->pitch;
- dev_priv->back_offset = init->back_offset;
- dev_priv->depth_offset = init->depth_offset;
-
- dev_priv->front_di1 = init->front_offset | init->pitch_bits;
- dev_priv->back_di1 = init->back_offset | init->pitch_bits;
- dev_priv->zi1 = init->depth_offset | init->pitch_bits;
-
- dev_priv->cpp = init->cpp;
- /* We are using seperate values as placeholders for mechanisms for
- * private backbuffer/depthbuffer usage.
- */
-
- dev_priv->back_pitch = init->back_pitch;
- dev_priv->depth_pitch = init->depth_pitch;
-
- /* Program Hardware Status Page */
- dev_priv->hw_status_page = i830_alloc_page(dev);
- if(dev_priv->hw_status_page == 0UL) {
- dev->dev_private = (void *)dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("Can not allocate hardware status page\n");
- return -ENOMEM;
- }
- memset((void *) dev_priv->hw_status_page, 0, PAGE_SIZE);
- DRM_DEBUG("hw status page @ %lx\n", dev_priv->hw_status_page);
-
- I830_WRITE(0x02080, virt_to_bus((void *)dev_priv->hw_status_page));
- DRM_DEBUG("Enabled hardware status page\n");
-
- /* Now we need to init our freelist */
- if(i830_freelist_init(dev, dev_priv) != 0) {
- dev->dev_private = (void *)dev_priv;
- i830_dma_cleanup(dev);
- DRM_ERROR("Not enough space in the status page for"
- " the freelist\n");
- return -ENOMEM;
- }
- dev->dev_private = (void *)dev_priv;
-
- return 0;
-}
-
-int i830_dma_init(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_i830_private_t *dev_priv;
- drm_i830_init_t init;
- int retcode = 0;
-
- if (copy_from_user(&init, (drm_i830_init_t *)arg, sizeof(init)))
- return -EFAULT;
-
- switch(init.func) {
- case I830_INIT_DMA:
- dev_priv = DRM(alloc)(sizeof(drm_i830_private_t),
- DRM_MEM_DRIVER);
- if(dev_priv == NULL) return -ENOMEM;
- retcode = i830_dma_initialize(dev, dev_priv, &init);
- break;
- case I830_CLEANUP_DMA:
- retcode = i830_dma_cleanup(dev);
- break;
- default:
- retcode = -EINVAL;
- break;
- }
-
- return retcode;
-}
-
-/* Most efficient way to verify state for the i830 is as it is
- * emitted. Non-conformant state is silently dropped.
- *
- * Use 'volatile' & local var tmp to force the emitted values to be
- * identical to the verified ones.
- */
-static void i830EmitContextVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- int i, j = 0;
- unsigned int tmp;
- RING_LOCALS;
-
- BEGIN_LP_RING( I830_CTX_SETUP_SIZE );
- for ( i = 0 ; i < I830_CTX_SETUP_SIZE ; i++ ) {
- tmp = code[i];
-
-#if 0
- if ((tmp & (7<<29)) == (3<<29) &&
- (tmp & (0x1f<<24)) < (0x1d<<24)) {
- OUT_RING( tmp );
- j++;
- } else {
- printk("Skipping %d\n", i);
- }
-#else
- OUT_RING( tmp );
- j++;
-#endif
- }
-
- if (j & 1)
- OUT_RING( 0 );
-
- ADVANCE_LP_RING();
-}
-
-static void i830EmitTexVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- int i, j = 0;
- unsigned int tmp;
- RING_LOCALS;
-
- BEGIN_LP_RING( I830_TEX_SETUP_SIZE );
-
- OUT_RING( GFX_OP_MAP_INFO );
- OUT_RING( code[I830_TEXREG_MI1] );
- OUT_RING( code[I830_TEXREG_MI2] );
- OUT_RING( code[I830_TEXREG_MI3] );
- OUT_RING( code[I830_TEXREG_MI4] );
- OUT_RING( code[I830_TEXREG_MI5] );
-
- for ( i = 6 ; i < I830_TEX_SETUP_SIZE ; i++ ) {
- tmp = code[i];
- OUT_RING( tmp );
- j++;
- }
-
- if (j & 1)
- OUT_RING( 0 );
-
- ADVANCE_LP_RING();
-}
-
-static void i830EmitTexBlendVerified( drm_device_t *dev,
- volatile unsigned int *code,
- volatile unsigned int num)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- int i, j = 0;
- unsigned int tmp;
- RING_LOCALS;
-
- BEGIN_LP_RING( num );
-
- for ( i = 0 ; i < num ; i++ ) {
- tmp = code[i];
- OUT_RING( tmp );
- j++;
- }
-
- if (j & 1)
- OUT_RING( 0 );
-
- ADVANCE_LP_RING();
-}
-
-static void i830EmitTexPalette( drm_device_t *dev,
- unsigned int *palette,
- int number,
- int is_shared )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- int i;
- RING_LOCALS;
-
- BEGIN_LP_RING( 258 );
-
- if(is_shared == 1) {
- OUT_RING(CMD_OP_MAP_PALETTE_LOAD |
- MAP_PALETTE_NUM(0) |
- MAP_PALETTE_BOTH);
- } else {
- OUT_RING(CMD_OP_MAP_PALETTE_LOAD | MAP_PALETTE_NUM(number));
- }
- for(i = 0; i < 256; i++) {
- OUT_RING(palette[i]);
- }
- OUT_RING(0);
-}
-
-/* Need to do some additional checking when setting the dest buffer.
- */
-static void i830EmitDestVerified( drm_device_t *dev,
- volatile unsigned int *code )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- unsigned int tmp;
- RING_LOCALS;
-
- BEGIN_LP_RING( I830_DEST_SETUP_SIZE + 6 );
-
- tmp = code[I830_DESTREG_CBUFADDR];
- if (tmp == dev_priv->front_di1) {
- /* Don't use fence when front buffer rendering */
- OUT_RING( CMD_OP_DESTBUFFER_INFO );
- OUT_RING( BUF_3D_ID_COLOR_BACK |
- BUF_3D_PITCH(dev_priv->back_pitch * dev_priv->cpp) );
- OUT_RING( tmp );
-
- OUT_RING( CMD_OP_DESTBUFFER_INFO );
- OUT_RING( BUF_3D_ID_DEPTH |
- BUF_3D_PITCH(dev_priv->depth_pitch * dev_priv->cpp));
- OUT_RING( dev_priv->zi1 );
- } else if(tmp == dev_priv->back_di1) {
- OUT_RING( CMD_OP_DESTBUFFER_INFO );
- OUT_RING( BUF_3D_ID_COLOR_BACK |
- BUF_3D_PITCH(dev_priv->back_pitch * dev_priv->cpp) |
- BUF_3D_USE_FENCE);
- OUT_RING( tmp );
-
- OUT_RING( CMD_OP_DESTBUFFER_INFO );
- OUT_RING( BUF_3D_ID_DEPTH | BUF_3D_USE_FENCE |
- BUF_3D_PITCH(dev_priv->depth_pitch * dev_priv->cpp));
- OUT_RING( dev_priv->zi1 );
- } else {
- DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
- tmp, dev_priv->front_di1, dev_priv->back_di1);
- }
-
- /* invarient:
- */
-
-
- OUT_RING( GFX_OP_DESTBUFFER_VARS );
- OUT_RING( code[I830_DESTREG_DV1] );
-
- OUT_RING( GFX_OP_DRAWRECT_INFO );
- OUT_RING( code[I830_DESTREG_DR1] );
- OUT_RING( code[I830_DESTREG_DR2] );
- OUT_RING( code[I830_DESTREG_DR3] );
- OUT_RING( code[I830_DESTREG_DR4] );
-
- /* Need to verify this */
- tmp = code[I830_DESTREG_SENABLE];
- if((tmp & ~0x3) == GFX_OP_SCISSOR_ENABLE) {
- OUT_RING( tmp );
- } else {
- DRM_DEBUG("bad scissor enable\n");
- OUT_RING( 0 );
- }
-
- OUT_RING( code[I830_DESTREG_SENABLE] );
-
- OUT_RING( GFX_OP_SCISSOR_RECT );
- OUT_RING( code[I830_DESTREG_SR1] );
- OUT_RING( code[I830_DESTREG_SR2] );
-
- ADVANCE_LP_RING();
-}
-
-static void i830EmitState( drm_device_t *dev )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
- unsigned int dirty = sarea_priv->dirty;
-
- if (dirty & I830_UPLOAD_BUFFERS) {
- i830EmitDestVerified( dev, sarea_priv->BufferState );
- sarea_priv->dirty &= ~I830_UPLOAD_BUFFERS;
- }
-
- if (dirty & I830_UPLOAD_CTX) {
- i830EmitContextVerified( dev, sarea_priv->ContextState );
- sarea_priv->dirty &= ~I830_UPLOAD_CTX;
- }
-
- if (dirty & I830_UPLOAD_TEX0) {
- i830EmitTexVerified( dev, sarea_priv->TexState[0] );
- sarea_priv->dirty &= ~I830_UPLOAD_TEX0;
- }
-
- if (dirty & I830_UPLOAD_TEX1) {
- i830EmitTexVerified( dev, sarea_priv->TexState[1] );
- sarea_priv->dirty &= ~I830_UPLOAD_TEX1;
- }
-
- if (dirty & I830_UPLOAD_TEXBLEND0) {
- i830EmitTexBlendVerified( dev, sarea_priv->TexBlendState[0],
- sarea_priv->TexBlendStateWordsUsed[0]);
- sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND0;
- }
-
- if (dirty & I830_UPLOAD_TEXBLEND1) {
- i830EmitTexBlendVerified( dev, sarea_priv->TexBlendState[1],
- sarea_priv->TexBlendStateWordsUsed[1]);
- sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND1;
- }
-
- if (dirty & I830_UPLOAD_TEX_PALETTE_SHARED) {
- i830EmitTexPalette(dev, sarea_priv->Palette[0], 0, 1);
- } else {
- if (dirty & I830_UPLOAD_TEX_PALETTE_N(0)) {
- i830EmitTexPalette(dev, sarea_priv->Palette[0], 0, 0);
- sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(0);
- }
- if (dirty & I830_UPLOAD_TEX_PALETTE_N(1)) {
- i830EmitTexPalette(dev, sarea_priv->Palette[1], 1, 0);
- sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(1);
- }
- }
-}
-
-static void i830_dma_dispatch_clear( drm_device_t *dev, int flags,
- unsigned int clear_color,
- unsigned int clear_zval,
- unsigned int clear_depthmask)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
- int nbox = sarea_priv->nbox;
- drm_clip_rect_t *pbox = sarea_priv->boxes;
- int pitch = dev_priv->pitch;
- int cpp = dev_priv->cpp;
- int i;
- unsigned int BR13, CMD, D_CMD;
- RING_LOCALS;
-
- i830_kernel_lost_context(dev);
-
- switch(cpp) {
- case 2:
- BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
- D_CMD = CMD = XY_COLOR_BLT_CMD;
- break;
- case 4:
- BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24) | (1<<25);
- CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
- XY_COLOR_BLT_WRITE_RGB);
- D_CMD = XY_COLOR_BLT_CMD;
- if(clear_depthmask & 0x00ffffff)
- D_CMD |= XY_COLOR_BLT_WRITE_RGB;
- if(clear_depthmask & 0xff000000)
- D_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
- break;
- default:
- BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
- D_CMD = CMD = XY_COLOR_BLT_CMD;
- break;
- }
-
- if (nbox > I830_NR_SAREA_CLIPRECTS)
- nbox = I830_NR_SAREA_CLIPRECTS;
-
- for (i = 0 ; i < nbox ; i++, pbox++) {
- if (pbox->x1 > pbox->x2 ||
- pbox->y1 > pbox->y2 ||
- pbox->x2 > dev_priv->w ||
- pbox->y2 > dev_priv->h)
- continue;
-
- if ( flags & I830_FRONT ) {
- DRM_DEBUG("clear front\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( CMD );
- OUT_RING( BR13 );
- OUT_RING( (pbox->y1 << 16) | pbox->x1 );
- OUT_RING( (pbox->y2 << 16) | pbox->x2 );
- OUT_RING( 0 );
- OUT_RING( clear_color );
- ADVANCE_LP_RING();
- }
-
- if ( flags & I830_BACK ) {
- DRM_DEBUG("clear back\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( CMD );
- OUT_RING( BR13 );
- OUT_RING( (pbox->y1 << 16) | pbox->x1 );
- OUT_RING( (pbox->y2 << 16) | pbox->x2 );
- OUT_RING( dev_priv->back_offset );
- OUT_RING( clear_color );
- ADVANCE_LP_RING();
- }
-
- if ( flags & I830_DEPTH ) {
- DRM_DEBUG("clear depth\n");
- BEGIN_LP_RING( 6 );
- OUT_RING( D_CMD );
- OUT_RING( BR13 );
- OUT_RING( (pbox->y1 << 16) | pbox->x1 );
- OUT_RING( (pbox->y2 << 16) | pbox->x2 );
- OUT_RING( dev_priv->depth_offset );
- OUT_RING( clear_zval );
- ADVANCE_LP_RING();
- }
- }
-}
-
-static void i830_dma_dispatch_swap( drm_device_t *dev )
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
- int nbox = sarea_priv->nbox;
- drm_clip_rect_t *pbox = sarea_priv->boxes;
- int pitch = dev_priv->pitch;
- int cpp = dev_priv->cpp;
- int ofs = dev_priv->back_offset;
- int i;
- unsigned int CMD, BR13;
- RING_LOCALS;
-
- DRM_DEBUG("swapbuffers\n");
-
- switch(cpp) {
- case 2:
- BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
- CMD = XY_SRC_COPY_BLT_CMD;
- break;
- case 4:
- BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24) | (1<<25);
- CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
- XY_SRC_COPY_BLT_WRITE_RGB);
- break;
- default:
- BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
- CMD = XY_SRC_COPY_BLT_CMD;
- break;
- }
-
- i830_kernel_lost_context(dev);
-
- if (nbox > I830_NR_SAREA_CLIPRECTS)
- nbox = I830_NR_SAREA_CLIPRECTS;
-
- for (i = 0 ; i < nbox; i++, pbox++)
- {
- if (pbox->x1 > pbox->x2 ||
- pbox->y1 > pbox->y2 ||
- pbox->x2 > dev_priv->w ||
- pbox->y2 > dev_priv->h)
- continue;
-
- DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
- pbox->x1, pbox->y1,
- pbox->x2, pbox->y2);
-
- BEGIN_LP_RING( 8 );
- OUT_RING( CMD );
- OUT_RING( BR13 );
-
- OUT_RING( (pbox->y1 << 16) |
- pbox->x1 );
- OUT_RING( (pbox->y2 << 16) |
- pbox->x2 );
-
- OUT_RING( 0 /* front ofs always zero */ );
- OUT_RING( (pbox->y1 << 16) |
- pbox->x1 );
-
- OUT_RING( BR13 & 0xffff );
- OUT_RING( ofs );
-
- ADVANCE_LP_RING();
- }
-}
-
-
-static void i830_dma_dispatch_vertex(drm_device_t *dev,
- drm_buf_t *buf,
- int discard,
- int used)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
- drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
- drm_clip_rect_t *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, u;
- RING_LOCALS;
-
- i830_kernel_lost_context(dev);
-
- if (nbox > I830_NR_SAREA_CLIPRECTS)
- nbox = I830_NR_SAREA_CLIPRECTS;
-
- if (discard) {
- u = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
- I830_BUF_HARDWARE);
- if(u != I830_BUF_CLIENT) {
- DRM_DEBUG("xxxx 2\n");
- }
- }
-
- if (used > 4*1024)
- used = 0;
-
- if (sarea_priv->dirty)
- i830EmitState( dev );
-
- DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
- address, used, nbox);
-
- dev_priv->counter++;
- DRM_DEBUG( "dispatch counter : %ld\n", dev_priv->counter);
- DRM_DEBUG( "i830_dma_dispatch\n");
- 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 == I830_BUF_MAPPED) {
- *(u32 *)buf_priv->virtual = (GFX_OP_PRIMITIVE |
- sarea_priv->vertex_prim |
- ((used/4)-2));
-
- if (used & 4) {
- *(u32 *)((u32)buf_priv->virtual + used) = 0;
- used += 4;
- }
-
- i830_unmap_buffer(buf);
- }
-
- if (used) {
- do {
- if (i < nbox) {
- BEGIN_LP_RING(6);
- OUT_RING( GFX_OP_DRAWRECT_INFO );
- OUT_RING( sarea_priv->BufferState[I830_DESTREG_DR1] );
- OUT_RING( box[i].x1 | (box[i].y1<<16) );
- OUT_RING( box[i].x2 | (box[i].y2<<16) );
- OUT_RING( sarea_priv->BufferState[I830_DESTREG_DR4] );
- OUT_RING( 0 );
- ADVANCE_LP_RING();
- }
-
- BEGIN_LP_RING(4);
-
- OUT_RING( MI_BATCH_BUFFER );
- OUT_RING( start | MI_BATCH_NON_SECURE );
- OUT_RING( start + used - 4 );
- OUT_RING( 0 );
- ADVANCE_LP_RING();
-
- } while (++i < nbox);
- }
-
- BEGIN_LP_RING(10);
- OUT_RING( CMD_STORE_DWORD_IDX );
- OUT_RING( 20 );
- OUT_RING( dev_priv->counter );
- OUT_RING( 0 );
-
- if (discard) {
- OUT_RING( CMD_STORE_DWORD_IDX );
- OUT_RING( buf_priv->my_use_idx );
- OUT_RING( I830_BUF_FREE );
- OUT_RING( 0 );
- }
-
- OUT_RING( CMD_REPORT_HEAD );
- OUT_RING( 0 );
- ADVANCE_LP_RING();
-}
-
-/* Interrupts are only for flushing */
-void i830_dma_service(int irq, void *device, struct pt_regs *regs)
-{
- drm_device_t *dev = (drm_device_t *)device;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- u16 temp;
-
- temp = I830_READ16(I830REG_INT_IDENTITY_R);
- temp = temp & ~(0x6000);
- if(temp != 0) I830_WRITE16(I830REG_INT_IDENTITY_R,
- temp); /* Clear all interrupts */
- else
- return;
-
- queue_task(&dev->tq, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-}
-
-void DRM(dma_immediate_bh)(void *device)
-{
- drm_device_t *dev = (drm_device_t *) device;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
-
- atomic_set(&dev_priv->flush_done, 1);
- wake_up_interruptible(&dev_priv->flush_queue);
-}
-
-static inline void i830_dma_emit_flush(drm_device_t *dev)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- RING_LOCALS;
-
- i830_kernel_lost_context(dev);
-
- BEGIN_LP_RING(2);
- OUT_RING( CMD_REPORT_HEAD );
- OUT_RING( GFX_OP_USER_INTERRUPT );
- ADVANCE_LP_RING();
-
- i830_wait_ring( dev, dev_priv->ring.Size - 8 );
- atomic_set(&dev_priv->flush_done, 1);
- wake_up_interruptible(&dev_priv->flush_queue);
-}
-
-static inline void i830_dma_quiescent_emit(drm_device_t *dev)
-{
- drm_i830_private_t *dev_priv = dev->dev_private;
- RING_LOCALS;
-
- i830_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( GFX_OP_USER_INTERRUPT );
- ADVANCE_LP_RING();
-
- i830_wait_ring( dev, dev_priv->ring.Size - 8 );
- atomic_set(&dev_priv->flush_done, 1);
- wake_up_interruptible(&dev_priv->flush_queue);
-}
-
-void i830_dma_quiescent(drm_device_t *dev)
-{
- DECLARE_WAITQUEUE(entry, current);
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- unsigned long end;
-
- if(dev_priv == NULL) {
- return;
- }
- atomic_set(&dev_priv->flush_done, 0);
- add_wait_queue(&dev_priv->flush_queue, &entry);
- end = jiffies + (HZ*3);
-
- for (;;) {
- current->state = TASK_INTERRUPTIBLE;
- i830_dma_quiescent_emit(dev);
- if (atomic_read(&dev_priv->flush_done) == 1) break;
- if((signed)(end - jiffies) <= 0) {
- DRM_ERROR("lockup\n");
- break;
- }
- schedule_timeout(HZ*3);
- if (signal_pending(current)) {
- break;
- }
- }
-
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev_priv->flush_queue, &entry);
-
- return;
-}
-
-static int i830_flush_queue(drm_device_t *dev)
-{
- DECLARE_WAITQUEUE(entry, current);
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- drm_device_dma_t *dma = dev->dma;
- unsigned long end;
- int i, ret = 0;
-
- if(dev_priv == NULL) {
- return 0;
- }
- atomic_set(&dev_priv->flush_done, 0);
- add_wait_queue(&dev_priv->flush_queue, &entry);
- end = jiffies + (HZ*3);
- for (;;) {
- current->state = TASK_INTERRUPTIBLE;
- i830_dma_emit_flush(dev);
- if (atomic_read(&dev_priv->flush_done) == 1) break;
- if((signed)(end - jiffies) <= 0) {
- DRM_ERROR("lockup\n");
- break;
- }
- schedule_timeout(HZ*3);
- if (signal_pending(current)) {
- ret = -EINTR; /* Can't restart */
- break;
- }
- }
-
- current->state = TASK_RUNNING;
- remove_wait_queue(&dev_priv->flush_queue, &entry);
-
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
-
- int used = cmpxchg(buf_priv->in_use, I830_BUF_HARDWARE,
- I830_BUF_FREE);
-
- if (used == I830_BUF_HARDWARE)
- DRM_DEBUG("reclaimed from HARDWARE\n");
- if (used == I830_BUF_CLIENT)
- DRM_DEBUG("still on client HARDWARE\n");
- }
-
- return ret;
-}
-
-/* Must be called with the lock held */
-void i830_reclaim_buffers(drm_device_t *dev, pid_t pid)
-{
- drm_device_dma_t *dma = dev->dma;
- int i;
-
- if (!dma) return;
- if (!dev->dev_private) return;
- if (!dma->buflist) return;
-
- i830_flush_queue(dev);
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i830_buf_priv_t *buf_priv = buf->dev_private;
-
- if (buf->pid == pid && buf_priv) {
- int used = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
- I830_BUF_FREE);
-
- if (used == I830_BUF_CLIENT)
- DRM_DEBUG("reclaimed from client\n");
- if(buf_priv->currently_mapped == I830_BUF_MAPPED)
- buf_priv->currently_mapped = I830_BUF_UNMAPPED;
- }
- }
-}
-
-int i830_flush_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
-
- DRM_DEBUG("i830_flush_ioctl\n");
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_flush_ioctl called without lock held\n");
- return -EINVAL;
- }
-
- i830_flush_queue(dev);
- return 0;
-}
-
-int i830_dma_vertex(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_device_dma_t *dma = dev->dma;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
- dev_priv->sarea_priv;
- drm_i830_vertex_t vertex;
-
- if (copy_from_user(&vertex, (drm_i830_vertex_t *)arg, sizeof(vertex)))
- return -EFAULT;
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_dma_vertex called without lock held\n");
- return -EINVAL;
- }
-
- DRM_DEBUG("i830 dma vertex, idx %d used %d discard %d\n",
- vertex.idx, vertex.used, vertex.discard);
-
- if(vertex.idx < 0 || vertex.idx > dma->buf_count) return -EINVAL;
-
- i830_dma_dispatch_vertex( dev,
- dma->buflist[ vertex.idx ],
- vertex.discard, vertex.used );
-
- sarea_priv->last_enqueue = dev_priv->counter-1;
- sarea_priv->last_dispatch = (int) hw_status[5];
-
- return 0;
-}
-
-int i830_clear_bufs(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_i830_clear_t clear;
-
- if (copy_from_user(&clear, (drm_i830_clear_t *)arg, sizeof(clear)))
- return -EFAULT;
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_clear_bufs called without lock held\n");
- return -EINVAL;
- }
-
- /* GH: Someone's doing nasty things... */
- if (!dev->dev_private) {
- return -EINVAL;
- }
-
- i830_dma_dispatch_clear( dev, clear.flags,
- clear.clear_color,
- clear.clear_depth,
- clear.clear_depthmask);
- return 0;
-}
-
-int i830_swap_bufs(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
-
- DRM_DEBUG("i830_swap_bufs\n");
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_swap_buf called without lock held\n");
- return -EINVAL;
- }
-
- i830_dma_dispatch_swap( dev );
- return 0;
-}
-
-int i830_getage(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
- dev_priv->sarea_priv;
-
- sarea_priv->last_dispatch = (int) hw_status[5];
- return 0;
-}
-
-int i830_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- int retcode = 0;
- drm_i830_dma_t d;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
- dev_priv->sarea_priv;
-
- DRM_DEBUG("getbuf\n");
- if (copy_from_user(&d, (drm_i830_dma_t *)arg, sizeof(d)))
- return -EFAULT;
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_dma called without lock held\n");
- return -EINVAL;
- }
-
- d.granted = 0;
-
- retcode = i830_dma_get_buffer(dev, &d, filp);
-
- DRM_DEBUG("i830_dma: %d returning %d, granted = %d\n",
- current->pid, retcode, d.granted);
-
- if (copy_to_user((drm_dma_t *)arg, &d, sizeof(d)))
- return -EFAULT;
- sarea_priv->last_dispatch = (int) hw_status[5];
-
- return retcode;
-}
-
-int i830_copybuf(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- drm_file_t *priv = filp->private_data;
- drm_device_t *dev = priv->dev;
- drm_i830_copy_t d;
- drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
- dev_priv->sarea_priv;
- drm_buf_t *buf;
- drm_i830_buf_priv_t *buf_priv;
- drm_device_dma_t *dma = dev->dma;
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i830_dma called without lock held\n");
- return -EINVAL;
- }
-
- if (copy_from_user(&d, (drm_i830_copy_t *)arg, sizeof(d)))
- return -EFAULT;
-
- if(d.idx < 0 || d.idx > dma->buf_count) return -EINVAL;
- buf = dma->buflist[ d.idx ];
- buf_priv = buf->dev_private;
- if (buf_priv->currently_mapped != I830_BUF_MAPPED) return -EPERM;
-
- if(d.used < 0 || d.used > buf->total) return -EINVAL;
-
- if (copy_from_user(buf_priv->virtual, d.address, d.used))
- return -EFAULT;
-
- sarea_priv->last_dispatch = (int) hw_status[5];
-
- return 0;
-}
-
-int i830_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- if(VM_DONTCOPY == 0) return 1;
- return 0;
-}