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-rw-r--r--bsd/i810/i810_dma.c1223
1 files changed, 0 insertions, 1223 deletions
diff --git a/bsd/i810/i810_dma.c b/bsd/i810/i810_dma.c
deleted file mode 100644
index 4310851a..00000000
--- a/bsd/i810/i810_dma.c
+++ /dev/null
@@ -1,1223 +0,0 @@
-/* i810_dma.c -- DMA support for the i810 -*- 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>
- *
- */
-
-
-#include "i810.h"
-#include "drmP.h"
-#include "drm.h"
-#include "i810_drm.h"
-#include "i810_drv.h"
-
-#define I810_BUF_FREE 2
-#define I810_BUF_CLIENT 1
-#define I810_BUF_HARDWARE 0
-
-#define I810_BUF_UNMAPPED 0
-#define I810_BUF_MAPPED 1
-
-#define RING_LOCALS unsigned int outring, ringmask; volatile char *virt;
-
-#define BEGIN_LP_RING(n) do { \
- if (I810_VERBOSE) \
- DRM_DEBUG("BEGIN_LP_RING(%d) in %s\n", \
- n, __FUNCTION__); \
- if (dev_priv->ring.space < n*4) \
- i810_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 (I810_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING\n"); \
- dev_priv->ring.tail = outring; \
- I810_WRITE(LP_RING + RING_TAIL, outring); \
-} while(0)
-
-#define OUT_RING(n) do { \
- if (I810_VERBOSE) DRM_DEBUG(" OUT_RING %x\n", (int)(n)); \
- *(volatile unsigned int *)(virt + outring) = n; \
- outring += 4; \
- outring &= ringmask; \
-} while (0);
-
-static __inline__ void i810_print_status_page(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
- drm_i810_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 = 6; i < dma->buf_count + 6; i++) {
- DRM_DEBUG( "buffer status idx : %d used: %d\n", i - 6, temp[i]);
- }
-}
-
-static drm_buf_t *i810_freelist_get(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
- int i;
- char failed;
-
- /* Linear search might not be the best solution */
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i810_buf_priv_t *buf_priv = buf->dev_private;
- /* In use is already a pointer */
- _DRM_CAS(buf_priv->in_use, I810_BUF_FREE, I810_BUF_CLIENT,
- failed);
- if (!failed)
- 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 i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
-{
- drm_i810_buf_priv_t *buf_priv = buf->dev_private;
- char failed;
-
- /* In use is already a pointer */
- _DRM_CAS(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE, failed);
- if(failed) {
- DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
- DRM_OS_RETURN( EINVAL );
- }
-
- return 0;
-}
-
-#if 0
-int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
-{
- DRM_OS_DEVICE;
- drm_i810_private_t *dev_priv;
- drm_buf_t *buf;
- drm_i810_buf_priv_t *buf_priv;
-
- lock_kernel();
- 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 = I810_BUF_MAPPED;
- unlock_kernel();
-
- if (remap_page_range(vma->vm_start,
- VM_OFFSET(vma),
- vma->vm_end - vma->vm_start,
- vma->vm_page_prot)) DRM_OS_RETURN(EAGAIN);
- return 0;
-}
-#endif
-
-static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
-{
- DRM_OS_DEVICE;
- drm_i810_buf_priv_t *buf_priv = buf->dev_private;
- drm_i810_private_t *dev_priv = dev->dev_private;
- struct file_operations *old_fops;
- int retcode = 0;
-
- if(buf_priv->currently_mapped == I810_BUF_MAPPED) DRM_OS_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 = &i810_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 = I810_BUF_MAPPED;
- }
- return retcode;
-}
-
-static int i810_unmap_buffer(drm_buf_t *buf)
-{
- drm_i810_buf_priv_t *buf_priv = buf->dev_private;
- int retcode = 0;
-
- if(VM_DONTCOPY != 0) {
- if(buf_priv->currently_mapped != I810_BUF_MAPPED)
- DRM_OS_RETURN(EINVAL);
-#if LINUX_VERSION_CODE <= 0x020402
- down( &current->mm->mmap_sem );
-#else
- down_write( &current->mm->mmap_sem );
-#endif
- retcode = do_munmap(current->mm,
- (unsigned long)buf_priv->virtual,
- (size_t) buf->total);
-#if LINUX_VERSION_CODE <= 0x020402
- up( &current->mm->mmap_sem );
-#else
- up_write( &current->mm->mmap_sem );
-#endif
- }
- buf_priv->currently_mapped = I810_BUF_UNMAPPED;
- buf_priv->virtual = 0;
-
- return retcode;
-}
-
-static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
- struct file *filp)
-{
- drm_file_t *priv = filp->private_data;
- drm_buf_t *buf;
- drm_i810_buf_priv_t *buf_priv;
- int retcode = 0;
-
- buf = i810_freelist_get(dev);
- if (!buf) {
- retcode = -ENOMEM;
- DRM_DEBUG("retcode=%d\n", retcode);
- DRM_OS_RETURN(retcode);
- }
-
- retcode = i810_map_buffer(buf, filp);
- if(retcode) {
- i810_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 i810_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 i810_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);
- DRM_OS_WAKEUP(&virt_to_page(page)->wait);
- free_page(page);
- return;
-}
-
-static int i810_dma_cleanup(drm_device_t *dev)
-{
- drm_device_dma_t *dma = dev->dma;
-
- if(dev->dev_private) {
- int i;
- drm_i810_private_t *dev_priv =
- (drm_i810_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) {
- i810_free_page(dev, dev_priv->hw_status_page);
- /* Need to rewrite hardware status page */
- I810_WRITE(0x02080, 0x1ffff000);
- }
- DRM(free)(dev->dev_private, sizeof(drm_i810_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_i810_buf_priv_t *buf_priv = buf->dev_private;
- DRM(ioremapfree)(buf_priv->kernel_virtual, buf->total);
- }
- }
- return 0;
-}
-
-static int i810_wait_ring(drm_device_t *dev, int n)
-{
- drm_i810_private_t *dev_priv = dev->dev_private;
- drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
- int iters = 0;
- unsigned long end;
- unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
-
- end = jiffies + (HZ*3);
- while (ring->space < n) {
- int i;
-
- ring->head = I810_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);
-
- 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 i810_kernel_lost_context(drm_device_t *dev)
-{
- drm_i810_private_t *dev_priv = dev->dev_private;
- drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
-
- ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- ring->tail = I810_READ(LP_RING + RING_TAIL);
- ring->space = ring->head - (ring->tail+8);
- if (ring->space < 0) ring->space += ring->Size;
-}
-
-static int i810_freelist_init(drm_device_t *dev, drm_i810_private_t *dev_priv)
-{
- drm_device_dma_t *dma = dev->dma;
- int my_idx = 24;
- 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 */
- DRM_OS_RETURN(EINVAL);
- }
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i810_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 = I810_BUF_FREE;
-
- buf_priv->kernel_virtual = DRM(ioremap)(buf->bus_address,
- buf->total);
- }
- return 0;
-}
-
-static int i810_dma_initialize(drm_device_t *dev,
- drm_i810_private_t *dev_priv,
- drm_i810_init_t *init)
-{
- drm_map_list_entry_t *listentry;
-
- memset(dev_priv, 0, sizeof(drm_i810_private_t));
-
- TAILQ_FOREACH(listentry, dev->maplist, link) {
- drm_map_t *map = listentry->map;
- if (map->type == _DRM_SHM &&
- map->flags & _DRM_CONTAINS_LOCK) {
- dev_priv->sarea = map;
- break;
- }
- }
-
- if(!dev_priv->sarea_map) {
- dev->dev_private = (void *)dev_priv;
- i810_dma_cleanup(dev);
- DRM_ERROR("can not find sarea!\n");
- DRM_OS_RETURN(EINVAL);
- }
- DRM_FIND_MAP( dev_priv->mmio_map, init->mmio_offset );
- if(!dev_priv->mmio_map) {
- dev->dev_private = (void *)dev_priv;
- i810_dma_cleanup(dev);
- DRM_ERROR("can not find mmio map!\n");
- DRM_OS_RETURN(EINVAL);
- }
- DRM_FIND_MAP( dev_priv->buffer_map, init->buffers_offset );
- if(!dev_priv->buffer_map) {
- dev->dev_private = (void *)dev_priv;
- i810_dma_cleanup(dev);
- DRM_ERROR("can not find dma buffer map!\n");
- DRM_OS_RETURN(EINVAL);
- }
-
- dev_priv->sarea_priv = (drm_i810_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;
- i810_dma_cleanup(dev);
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- DRM_OS_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;
-
- /* Program Hardware Status Page */
- dev_priv->hw_status_page = i810_alloc_page(dev);
- if(dev_priv->hw_status_page == 0UL) {
- dev->dev_private = (void *)dev_priv;
- i810_dma_cleanup(dev);
- DRM_ERROR("Can not allocate hardware status page\n");
- DRM_OS_RETURN(ENOMEM);
- }
- memset((void *) dev_priv->hw_status_page, 0, PAGE_SIZE);
- DRM_DEBUG("hw status page @ %lx\n", dev_priv->hw_status_page);
-
- I810_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(i810_freelist_init(dev, dev_priv) != 0) {
- dev->dev_private = (void *)dev_priv;
- i810_dma_cleanup(dev);
- DRM_ERROR("Not enough space in the status page for"
- " the freelist\n");
- DRM_OS_RETURN(ENOMEM);
- }
- dev->dev_private = (void *)dev_priv;
-
- return 0;
-}
-
-int i810_dma_init( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- drm_i810_private_t *dev_priv;
- drm_i810_init_t init;
- int retcode = 0;
-
- DRM_OS_KRNFROMUSR( init, (drm_i810_init_t *) data, sizeof(init) );
-
- switch(init.func) {
- case I810_INIT_DMA:
- dev_priv = DRM(alloc)(sizeof(drm_i810_private_t),
- DRM_MEM_DRIVER);
- if(dev_priv == NULL) DRM_OS_RETURN(ENOMEM);
- retcode = i810_dma_initialize(dev, dev_priv, &init);
- break;
- case I810_CLEANUP_DMA:
- retcode = i810_dma_cleanup(dev);
- break;
- default:
- retcode = -EINVAL;
- break;
- }
-
- DRM_OS_RETURN(retcode);
-}
-
-
-
-/* Most efficient way to verify state for the i810 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 i810EmitContextVerified( drm_device_t *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_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++;
- }
- }
-
- if (j & 1)
- OUT_RING( 0 );
-
- ADVANCE_LP_RING();
-}
-
-static void i810EmitTexVerified( drm_device_t *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++;
- }
- }
-
- if (j & 1)
- OUT_RING( 0 );
-
- ADVANCE_LP_RING();
-}
-
-
-/* Need to do some additional checking when setting the dest buffer.
- */
-static void i810EmitDestVerified( drm_device_t *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( drm_device_t *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;
-
- 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( drm_device_t *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;
- drm_clip_rect_t *pbox = sarea_priv->boxes;
- int pitch = dev_priv->pitch;
- int cpp = 2;
- int i;
- RING_LOCALS;
-
- 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 ) {
- DRM_DEBUG("clear front\n");
- 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 ) {
- DRM_DEBUG("clear back\n");
- 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 ) {
- DRM_DEBUG("clear depth\n");
- 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( drm_device_t *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;
- drm_clip_rect_t *pbox = sarea_priv->boxes;
- int pitch = dev_priv->pitch;
- int cpp = 2;
- int ofs = dev_priv->back_offset;
- 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 = ofs + dst;
-
- 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[i].x1, pbox[i].y1,
- pbox[i].x2, pbox[i].y2);
-
- 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));
- OUT_RING( dst );
- OUT_RING( pitch );
- OUT_RING( start );
- ADVANCE_LP_RING();
- }
-}
-
-
-static void i810_dma_dispatch_vertex(drm_device_t *dev,
- drm_buf_t *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;
- 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;
- char failed;
- RING_LOCALS;
-
- i810_kernel_lost_context(dev);
-
- if (nbox > I810_NR_SAREA_CLIPRECTS)
- nbox = I810_NR_SAREA_CLIPRECTS;
-
- if (discard) {
- _DRM_CAS(buf_priv->in_use, I810_BUF_CLIENT,
- I810_BUF_HARDWARE, failed);
- if (failed)
- DRM_DEBUG("xxxx 2\n");
- }
-
- if (used > 4*1024)
- used = 0;
-
- if (sarea_priv->dirty)
- i810EmitState( 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( "i810_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 == I810_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;
- }
-
- 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);
- }
-
- 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( I810_BUF_FREE );
- OUT_RING( 0 );
- }
-
- OUT_RING( CMD_REPORT_HEAD );
- OUT_RING( 0 );
- ADVANCE_LP_RING();
-}
-
-
-/* Interrupts are only for flushing */
-void i810_dma_service(int irq, void *device, struct pt_regs *regs)
-{
- drm_device_t *dev = (drm_device_t *)device;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- u16 temp;
-
- atomic_inc(&dev->counts[_DRM_STAT_IRQ]);
- temp = I810_READ16(I810REG_INT_IDENTITY_R);
- temp = temp & ~(0x6000);
- if(temp != 0) I810_WRITE16(I810REG_INT_IDENTITY_R,
- temp); /* Clear all interrupts */
- else
- return;
-
- queue_task(&dev->tq, &tq_immediate);
- mark_bh(IMMEDIATE_BH);
-}
-
-void i810_dma_immediate_bh(void *device)
-{
- drm_device_t *dev = (drm_device_t *) device;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
-
- atomic_set(&dev_priv->flush_done, 1);
- DRM_OS_WAKEUP_INT(&dev_priv->flush_queue);
-}
-
-static inline void i810_dma_emit_flush(drm_device_t *dev)
-{
- drm_i810_private_t *dev_priv = dev->dev_private;
- RING_LOCALS;
-
- i810_kernel_lost_context(dev);
-
- BEGIN_LP_RING(2);
- OUT_RING( CMD_REPORT_HEAD );
- OUT_RING( GFX_OP_USER_INTERRUPT );
- ADVANCE_LP_RING();
-
-/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
-/* atomic_set(&dev_priv->flush_done, 1); */
-/* DRM_OS_WAKEUP_INT(&dev_priv->flush_queue); */
-}
-
-static inline void i810_dma_quiescent_emit(drm_device_t *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( GFX_OP_USER_INTERRUPT );
- ADVANCE_LP_RING();
-
-/* i810_wait_ring( dev, dev_priv->ring.Size - 8 ); */
-/* atomic_set(&dev_priv->flush_done, 1); */
-/* DRM_OS_WAKEUP_INT(&dev_priv->flush_queue); */
-}
-
-void i810_dma_quiescent(drm_device_t *dev)
-{
- DECLARE_WAITQUEUE(entry, current);
- drm_i810_private_t *dev_priv = (drm_i810_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;
- i810_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 i810_flush_queue(drm_device_t *dev)
-{
- DECLARE_WAITQUEUE(entry, current);
- drm_i810_private_t *dev_priv = (drm_i810_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;
- i810_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_i810_buf_priv_t *buf_priv = buf->dev_private;
-
- char failed;
- _DRM_CAS(buf_priv->in_use, I810_BUF_HARDWARE,
- I810_BUF_FREE, failed);
-
- if (!failed)
- DRM_DEBUG("reclaimed from HARDWARE\n");
- if (used == I810_BUF_CLIENT)
- DRM_DEBUG("still on client HARDWARE\n");
- }
-
- return ret;
-}
-
-/* Must be called with the lock held */
-void i810_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;
-
- i810_flush_queue(dev);
-
- for (i = 0; i < dma->buf_count; i++) {
- drm_buf_t *buf = dma->buflist[ i ];
- drm_i810_buf_priv_t *buf_priv = buf->dev_private;
-
- if (buf->pid == pid && buf_priv) {
- char failed;
- _DRM_CAS(buf_priv->in_use, I810_BUF_CLIENT,
- I810_BUF_FREE, failed);
-
- if (!failed)
-
- DRM_DEBUG("reclaimed from client\n");
- if(buf_priv->currently_mapped == I810_BUF_MAPPED)
- buf_priv->currently_mapped = I810_BUF_UNMAPPED;
- }
- }
-}
-
-int i810_flush_ioctl( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
-
- DRM_DEBUG("i810_flush_ioctl\n");
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_flush_ioctl called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- i810_flush_queue(dev);
- return 0;
-}
-
-
-int i810_dma_vertex( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- drm_device_dma_t *dma = dev->dma;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
- drm_i810_vertex_t vertex;
-
- DRM_OS_KRNFROMUSR( vertex, (drm_i810_vertex_t *) data, sizeof(vertex) );
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_dma_vertex called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
- vertex.idx, vertex.used, vertex.discard);
-
- if(vertex.idx < 0 || vertex.idx > dma->buf_count) DRM_OS_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;
-}
-
-
-
-int i810_clear_bufs( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- drm_i810_clear_t clear;
-
- DRM_OS_KRNFROMUSR( clear, (drm_i810_clear_t *) data, sizeof(clear) );
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_clear_bufs called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- /* GH: Someone's doing nasty things... */
- if (!dev->dev_private) {
- DRM_OS_RETURN(EINVAL);
- }
-
- i810_dma_dispatch_clear( dev, clear.flags,
- clear.clear_color,
- clear.clear_depth );
- return 0;
-}
-
-int i810_swap_bufs( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
-
- DRM_DEBUG("i810_swap_bufs\n");
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_swap_buf called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- i810_dma_dispatch_swap( dev );
- return 0;
-}
-
-int i810_getage( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)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;
-}
-
-int i810_getbuf( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- int retcode = 0;
- drm_i810_dma_t d;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
-
- DRM_DEBUG("getbuf\n");
- DRM_OS_KRNFROMUSR( d, (drm_i810_dma_t *) data, sizeof(d) );
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_dma called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- d.granted = 0;
-
- retcode = i810_dma_get_buffer(dev, &d, filp);
-
- DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
- DRM_OS_CURRENTPID, retcode, d.granted);
-
- DRM_OS_KRNTOUSR( (drm_dma_t *) data, d, sizeof(d) );
- sarea_priv->last_dispatch = (int) hw_status[5];
-
- DRM_OS_RETURN(retcode);
-}
-
-int i810_copybuf( DRM_OS_IOCTL )
-{
- DRM_OS_DEVICE;
- drm_i810_copy_t d;
- drm_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
- u32 *hw_status = (u32 *)dev_priv->hw_status_page;
- drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
- dev_priv->sarea_priv;
- drm_buf_t *buf;
- drm_i810_buf_priv_t *buf_priv;
- drm_device_dma_t *dma = dev->dma;
-
- if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i810_dma called without lock held\n");
- DRM_OS_RETURN( EINVAL );
- }
-
- DRM_OS_KRNFROMUSR( d, (drm_i810_copy_t *) data, sizeof(d) );
-
- if(d.idx < 0 || d.idx > dma->buf_count) DRM_OS_RETURN(EINVAL);
- buf = dma->buflist[ d.idx ];
- buf_priv = buf->dev_private;
- if (buf_priv->currently_mapped != I810_BUF_MAPPED) DRM_OS_RETURN(EPERM);
- if(d.used < 0 || d.used > buf->total) DRM_OS_RETURN(EINVAL);
-
- if (DRM_OS_COPYFROMUSR(buf_priv->virtual, d.address, d.used))
- DRM_OS_RETURN( EFAULT );
-
- sarea_priv->last_dispatch = (int) hw_status[5];
-
- return 0;
-}
-
-int i810_docopy( DRM_OS_IOCTL )
-{
- if(VM_DONTCOPY == 0) return 1;
- return 0;
-}