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Diffstat (limited to 'nx-X11/extras/drm/linux/i810_dma.c')
-rw-r--r--nx-X11/extras/drm/linux/i810_dma.c1421
1 files changed, 1421 insertions, 0 deletions
diff --git a/nx-X11/extras/drm/linux/i810_dma.c b/nx-X11/extras/drm/linux/i810_dma.c
new file mode 100644
index 000000000..621be7a92
--- /dev/null
+++ b/nx-X11/extras/drm/linux/i810_dma.c
@@ -0,0 +1,1421 @@
+/* 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 <keith@tungstengraphics.com>
+ *
+ */
+
+#include "i810.h"
+#include "drmP.h"
+#include "drm.h"
+#include "i810_drm.h"
+#include "i810_drv.h"
+#include <linux/interrupt.h> /* For task queue support */
+#include <linux/delay.h>
+#include <linux/pagemap.h>
+
+#ifdef DO_MUNMAP_4_ARGS
+#define DO_MUNMAP(m, a, l) do_munmap(m, a, l, 1)
+#else
+#define DO_MUNMAP(m, a, l) do_munmap(m, a, l)
+#endif
+
+#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
+
+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 = 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: Last Render: %x\n", temp[4]);
+ 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;
+ 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_i810_buf_priv_t *buf_priv = buf->dev_private;
+ /* In use is already a pointer */
+ used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
+ I810_BUF_CLIENT);
+ if (used == I810_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 i810_freelist_put(drm_device_t *dev, drm_buf_t *buf)
+{
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ int used;
+
+ /* In use is already a pointer */
+ used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
+ if (used != I810_BUF_CLIENT) {
+ DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static struct file_operations i810_buffer_fops = {
+ .open = DRM(open),
+ .flush = DRM(flush),
+ .release = DRM(release),
+ .ioctl = DRM(ioctl),
+ .mmap = i810_mmap_buffers,
+ .fasync = DRM(fasync),
+};
+
+int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev;
+ drm_i810_private_t *dev_priv;
+ drm_buf_t *buf;
+ drm_i810_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 = I810_BUF_MAPPED;
+ unlock_kernel();
+
+ if (remap_page_range(DRM_RPR_ARG(vma) vma->vm_start,
+ VM_OFFSET(vma),
+ vma->vm_end - vma->vm_start,
+ vma->vm_page_prot)) return -EAGAIN;
+ return 0;
+}
+
+static int i810_map_buffer(drm_buf_t *buf, struct file *filp)
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ 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)
+ return -EINVAL;
+
+ down_write( &current->mm->mmap_sem );
+ 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_ERROR("mmap error\n");
+ retcode = (signed int)buf_priv->virtual;
+ buf_priv->virtual = NULL;
+ }
+ up_write( &current->mm->mmap_sem );
+
+ 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 (buf_priv->currently_mapped != I810_BUF_MAPPED)
+ return -EINVAL;
+
+ down_write(&current->mm->mmap_sem);
+ retcode = DO_MUNMAP(current->mm,
+ (unsigned long)buf_priv->virtual,
+ (size_t) buf->total);
+ up_write(&current->mm->mmap_sem);
+
+ buf_priv->currently_mapped = I810_BUF_UNMAPPED;
+ buf_priv->virtual = NULL;
+
+ return retcode;
+}
+
+static int i810_dma_get_buffer(drm_device_t *dev, drm_i810_dma_t *d,
+ struct file *filp)
+{
+ 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);
+ return retcode;
+ }
+
+ retcode = i810_map_buffer(buf, filp);
+ if (retcode) {
+ i810_freelist_put(dev, buf);
+ DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
+ return retcode;
+ }
+ buf->filp = filp;
+ 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;
+}
+
+int i810_dma_cleanup(drm_device_t *dev)
+{
+ drm_device_dma_t *dma = dev->dma;
+
+ /* Make sure interrupts are disabled here because the uninstall ioctl
+ * may not have been called from userspace and after dev_private
+ * is freed, it's too late.
+ */
+ if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
+ DRM(irq_uninstall)(dev);
+
+ 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, dev);
+ }
+ if (dev_priv->hw_status_page) {
+ pci_free_consistent(dev->pdev, PAGE_SIZE,
+ dev_priv->hw_status_page,
+ dev_priv->dma_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;
+ if ( buf_priv->kernel_virtual && buf->total )
+ DRM(ioremapfree)(buf_priv->kernel_virtual, buf->total, dev);
+ }
+ }
+ 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) {
+ 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);
+ last_head = ring->head;
+ }
+
+ iters++;
+ if (time_before(end, jiffies)) {
+ DRM_ERROR("space: %d wanted %d\n", ring->space, n);
+ DRM_ERROR("lockup\n");
+ goto out_wait_ring;
+ }
+ udelay(1);
+ }
+
+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 */
+ 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, dev);
+ }
+ return 0;
+}
+
+static int i810_dma_initialize(drm_device_t *dev,
+ drm_i810_private_t *dev_priv,
+ drm_i810_init_t *init)
+{
+ struct list_head *list;
+
+ memset(dev_priv, 0, sizeof(drm_i810_private_t));
+
+ list_for_each(list, &dev->maplist->head) {
+ drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
+ 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;
+ i810_dma_cleanup(dev);
+ DRM_ERROR("can not find sarea!\n");
+ return -EINVAL;
+ }
+ dev_priv->mmio_map = drm_core_findmap(dev, 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");
+ return -EINVAL;
+ }
+ dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
+ if (!dev->agp_buffer_map) {
+ dev->dev_private = (void *)dev_priv;
+ i810_dma_cleanup(dev);
+ DRM_ERROR("can not find dma buffer map!\n");
+ return -EINVAL;
+ }
+
+ dev_priv->sarea_priv = (drm_i810_sarea_t *)
+ ((u8 *)dev_priv->sarea_map->handle +
+ init->sarea_priv_offset);
+
+ 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, dev);
+
+ 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");
+ 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_offset = init->front_offset;
+
+ dev_priv->overlay_offset = init->overlay_offset;
+ dev_priv->overlay_physical = init->overlay_physical;
+
+ 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 =
+ pci_alloc_consistent(dev->pdev, PAGE_SIZE,
+ &dev_priv->dma_status_page);
+ if (!dev_priv->hw_status_page) {
+ dev->dev_private = (void *)dev_priv;
+ i810_dma_cleanup(dev);
+ DRM_ERROR("Can not allocate hardware status page\n");
+ return -ENOMEM;
+ }
+ memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
+ DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
+
+ I810_WRITE(0x02080, dev_priv->dma_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");
+ return -ENOMEM;
+ }
+ dev->dev_private = (void *)dev_priv;
+
+ return 0;
+}
+
+/* i810 DRM version 1.1 used a smaller init structure with different
+ * ordering of values than is currently used (drm >= 1.2). There is
+ * no defined way to detect the XFree version to correct this problem,
+ * however by checking using this procedure we can detect the correct
+ * thing to do.
+ *
+ * #1 Read the Smaller init structure from user-space
+ * #2 Verify the overlay_physical is a valid physical address, or NULL
+ * If it isn't then we have a v1.1 client. Fix up params.
+ * If it is, then we have a 1.2 client... get the rest of the data.
+ */
+int i810_dma_init_compat(drm_i810_init_t *init, unsigned long arg)
+{
+
+ /* Get v1.1 init data */
+ if (copy_from_user(init, (drm_i810_pre12_init_t __user *)arg,
+ sizeof(drm_i810_pre12_init_t))) {
+ return -EFAULT;
+ }
+
+ if ((!init->overlay_physical) || (init->overlay_physical > 4096)) {
+
+ /* This is a v1.2 client, just get the v1.2 init data */
+ DRM_INFO("Using POST v1.2 init.\n");
+ if (copy_from_user(init, (drm_i810_init_t __user *)arg,
+ sizeof(drm_i810_init_t))) {
+ return -EFAULT;
+ }
+ } else {
+
+ /* This is a v1.1 client, fix the params */
+ DRM_INFO("Using PRE v1.2 init.\n");
+ init->pitch_bits = init->h;
+ init->pitch = init->w;
+ init->h = init->overlay_physical;
+ init->w = init->overlay_offset;
+ init->overlay_physical = 0;
+ init->overlay_offset = 0;
+ }
+
+ return 0;
+}
+
+int i810_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_i810_private_t *dev_priv;
+ drm_i810_init_t init;
+ int retcode = 0;
+
+ /* Get only the init func */
+ if (copy_from_user(&init, (void __user *)arg, sizeof(drm_i810_init_func_t)))
+ return -EFAULT;
+
+ switch(init.func) {
+ case I810_INIT_DMA:
+ /* This case is for backward compatibility. It
+ * handles XFree 4.1.0 and 4.2.0, and has to
+ * do some parameter checking as described below.
+ * It will someday go away.
+ */
+ retcode = i810_dma_init_compat(&init, arg);
+ if (retcode)
+ return retcode;
+
+ dev_priv = DRM(alloc)(sizeof(drm_i810_private_t),
+ DRM_MEM_DRIVER);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+ retcode = i810_dma_initialize(dev, dev_priv, &init);
+ break;
+
+ default:
+ case I810_INIT_DMA_1_4:
+ DRM_INFO("Using v1.4 init.\n");
+ if (copy_from_user(&init, (drm_i810_init_t __user *)arg,
+ sizeof(drm_i810_init_t))) {
+ return -EFAULT;
+ }
+ dev_priv = DRM(alloc)(sizeof(drm_i810_private_t),
+ DRM_MEM_DRIVER);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+ retcode = i810_dma_initialize(dev, dev_priv, &init);
+ break;
+
+ case I810_CLEANUP_DMA:
+ DRM_INFO("DMA Cleanup\n");
+ retcode = i810_dma_cleanup(dev);
+ break;
+ }
+
+ 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++;
+ }
+ else printk("constext state dropped!!!\n");
+ }
+
+ 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++;
+ }
+ 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( 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;
+
+ DRM_DEBUG("%s %x\n", __FUNCTION__, 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;
+
+ 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( 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 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(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;
+ 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 *)((u32)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( drm_device_t *dev )
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ int pitch = dev_priv->pitch;
+ RING_LOCALS;
+
+ DRM_DEBUG( "%s: page=%d pfCurrentPage=%d\n",
+ __FUNCTION__,
+ 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;
+
+}
+
+void i810_dma_quiescent(drm_device_t *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ RING_LOCALS;
+
+/* printk("%s\n", __FUNCTION__); */
+
+ 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(drm_device_t *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_device_dma_t *dma = dev->dma;
+ int i, ret = 0;
+ RING_LOCALS;
+
+/* printk("%s\n", __FUNCTION__); */
+
+ 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++) {
+ drm_buf_t *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 */
+void i810_reclaim_buffers(drm_device_t *dev, struct file *filp)
+{
+ 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->filp == filp && 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;
+ }
+ }
+}
+
+int i810_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;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_flush_ioctl called without lock held\n");
+ return -EINVAL;
+ }
+
+ i810_flush_queue(dev);
+ return 0;
+}
+
+
+int i810_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_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;
+
+ if (copy_from_user(&vertex, (drm_i810_vertex_t __user *)arg, sizeof(vertex)))
+ return -EFAULT;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_dma_vertex called without lock held\n");
+ 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)
+ 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(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_i810_clear_t clear;
+
+ if (copy_from_user(&clear, (drm_i810_clear_t __user *)arg, sizeof(clear)))
+ return -EFAULT;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_clear_bufs called without lock held\n");
+ return -EINVAL;
+ }
+
+ /* 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;
+}
+
+int i810_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("i810_swap_bufs\n");
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_swap_buf called without lock held\n");
+ return -EINVAL;
+ }
+
+ i810_dma_dispatch_swap( dev );
+ return 0;
+}
+
+int i810_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_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;
+}
+
+int i810_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_i810_dma_t d;
+ 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;
+
+ if (copy_from_user(&d, (drm_i810_dma_t __user *)arg, sizeof(d)))
+ return -EFAULT;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_dma called without lock held\n");
+ return -EINVAL;
+ }
+
+ d.granted = 0;
+
+ retcode = i810_dma_get_buffer(dev, &d, filp);
+
+ DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
+ current->pid, retcode, d.granted);
+
+ if (copy_to_user((drm_dma_t __user *)arg, &d, sizeof(d)))
+ return -EFAULT;
+ sarea_priv->last_dispatch = (int) hw_status[5];
+
+ return retcode;
+}
+
+int i810_copybuf(struct inode *inode,
+ struct file *filp,
+ unsigned int cmd,
+ unsigned long arg)
+{
+ /* Never copy - 2.4.x doesn't need it */
+ return 0;
+}
+
+int i810_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
+ unsigned long arg)
+{
+ /* Never copy - 2.4.x doesn't need it */
+ return 0;
+}
+
+static void i810_dma_dispatch_mc(drm_device_t *dev, drm_buf_t *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("dispatch mc addr 0x%lx, used 0x%x\n",
+ address, used);
+
+ dev_priv->counter++;
+ DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
+ DRM_DEBUG("i810_dma_dispatch_mc\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) {
+ if (used & 4) {
+ *(u32 *)((u32)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();
+}
+
+int i810_dma_mc(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_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;
+
+ if (copy_from_user(&mc, (drm_i810_mc_t __user *)arg, sizeof(mc)))
+ return -EFAULT;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_dma_mc called without lock held\n");
+ return -EINVAL;
+ }
+
+ 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;
+}
+
+int i810_rstatus(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ return (int)(((u32 *)(dev_priv->hw_status_page))[4]);
+}
+
+int i810_ov0_info(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+ drm_i810_overlay_t data;
+
+ data.offset = dev_priv->overlay_offset;
+ data.physical = dev_priv->overlay_physical;
+ if (copy_to_user((drm_i810_overlay_t __user *)arg,&data,sizeof(data)))
+ return -EFAULT;
+ return 0;
+}
+
+int i810_fstatus(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_fstatus called without lock held\n");
+ return -EINVAL;
+ }
+ return I810_READ(0x30008);
+}
+
+int i810_ov0_flip(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_i810_private_t *dev_priv = (drm_i810_private_t *)dev->dev_private;
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_ov0_flip called without lock held\n");
+ return -EINVAL;
+ }
+
+ //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( drm_device_t *dev )
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("%s\n", __FUNCTION__);
+ dev_priv->page_flipping = 1;
+ dev_priv->current_page = 0;
+ dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
+}
+
+int i810_do_cleanup_pageflip( drm_device_t *dev )
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("%s\n", __FUNCTION__);
+ if (dev_priv->current_page != 0)
+ i810_dma_dispatch_flip( dev );
+
+ dev_priv->page_flipping = 0;
+ return 0;
+}
+
+int i810_flip_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_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("%s\n", __FUNCTION__);
+
+ if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i810_flip_buf called without lock held\n");
+ return -EINVAL;
+ }
+
+ if (!dev_priv->page_flipping)
+ i810_do_init_pageflip( dev );
+
+ i810_dma_dispatch_flip( dev );
+ return 0;
+}
+
+static void i810_driver_pretakedown(drm_device_t *dev)
+{
+ i810_dma_cleanup( dev );
+}
+
+static void i810_driver_release(drm_device_t *dev, struct file *filp)
+{
+ i810_reclaim_buffers(dev, filp);
+}
+
+static int i810_driver_dma_quiescent(drm_device_t *dev)
+{
+ i810_dma_quiescent( dev );
+ return 0;
+}
+
+void i810_driver_register_fns(drm_device_t *dev)
+{
+ dev->driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_DMA_QUEUE;
+ dev->dev_priv_size = sizeof(drm_i810_buf_priv_t);
+ dev->fn_tbl.pretakedown = i810_driver_pretakedown;
+ dev->fn_tbl.release = i810_driver_release;
+ dev->fn_tbl.dma_quiescent = i810_driver_dma_quiescent;
+ dev->fn_tbl.reclaim_buffers = i810_reclaim_buffers;
+
+ /* 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;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 00:52:21 +0000