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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/gpu/drm/i810
Initial import
Diffstat (limited to 'drivers/gpu/drm/i810')
-rw-r--r--drivers/gpu/drm/i810/Makefile8
-rw-r--r--drivers/gpu/drm/i810/i810_dma.c1269
-rw-r--r--drivers/gpu/drm/i810/i810_drv.c104
-rw-r--r--drivers/gpu/drm/i810/i810_drv.h245
4 files changed, 1626 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i810/Makefile b/drivers/gpu/drm/i810/Makefile
new file mode 100644
index 000000000..43844ecaf
--- /dev/null
+++ b/drivers/gpu/drm/i810/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the drm device driver. This driver provides support for the
+# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
+
+ccflags-y := -Iinclude/drm
+i810-y := i810_drv.o i810_dma.o
+
+obj-$(CONFIG_DRM_I810) += i810.o
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
new file mode 100644
index 000000000..d91856779
--- /dev/null
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -0,0 +1,1269 @@
+/* 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 <drm/drmP.h>
+#include <drm/i810_drm.h>
+#include "i810_drv.h"
+#include <linux/interrupt.h> /* For task queue support */
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/pagemap.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
+
+static struct drm_buf *i810_freelist_get(struct drm_device * dev)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+ int used;
+
+ /* Linear search might not be the best solution */
+
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ /* 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(struct drm_device *dev, struct drm_buf *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 int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
+{
+ struct drm_file *priv = filp->private_data;
+ struct drm_device *dev;
+ drm_i810_private_t *dev_priv;
+ struct drm_buf *buf;
+ drm_i810_buf_priv_t *buf_priv;
+
+ dev = priv->minor->dev;
+ dev_priv = dev->dev_private;
+ buf = dev_priv->mmap_buffer;
+ buf_priv = buf->dev_private;
+
+ vma->vm_flags |= VM_DONTCOPY;
+
+ buf_priv->currently_mapped = I810_BUF_MAPPED;
+
+ if (io_remap_pfn_range(vma, vma->vm_start,
+ vma->vm_pgoff,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot))
+ return -EAGAIN;
+ return 0;
+}
+
+static const struct file_operations i810_buffer_fops = {
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = i810_mmap_buffers,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
+static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ const struct file_operations *old_fops;
+ int retcode = 0;
+
+ if (buf_priv->currently_mapped == I810_BUF_MAPPED)
+ return -EINVAL;
+
+ /* This is all entirely broken */
+ old_fops = file_priv->filp->f_op;
+ file_priv->filp->f_op = &i810_buffer_fops;
+ dev_priv->mmap_buffer = buf;
+ buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
+ PROT_READ | PROT_WRITE,
+ MAP_SHARED, buf->bus_address);
+ dev_priv->mmap_buffer = NULL;
+ file_priv->filp->f_op = old_fops;
+ if (IS_ERR(buf_priv->virtual)) {
+ /* Real error */
+ DRM_ERROR("mmap error\n");
+ retcode = PTR_ERR(buf_priv->virtual);
+ buf_priv->virtual = NULL;
+ }
+
+ return retcode;
+}
+
+static int i810_unmap_buffer(struct drm_buf *buf)
+{
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ int retcode = 0;
+
+ if (buf_priv->currently_mapped != I810_BUF_MAPPED)
+ return -EINVAL;
+
+ retcode = vm_munmap((unsigned long)buf_priv->virtual,
+ (size_t) buf->total);
+
+ buf_priv->currently_mapped = I810_BUF_UNMAPPED;
+ buf_priv->virtual = NULL;
+
+ return retcode;
+}
+
+static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
+ struct drm_file *file_priv)
+{
+ struct drm_buf *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, file_priv);
+ if (retcode) {
+ i810_freelist_put(dev, buf);
+ DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
+ return retcode;
+ }
+ buf->file_priv = file_priv;
+ 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 int i810_dma_cleanup(struct drm_device *dev)
+{
+ struct drm_device_dma *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_legacy_ioremapfree(&dev_priv->ring.map, dev);
+ if (dev_priv->hw_status_page) {
+ pci_free_consistent(dev->pdev, PAGE_SIZE,
+ dev_priv->hw_status_page,
+ dev_priv->dma_status_page);
+ }
+ kfree(dev->dev_private);
+ dev->dev_private = NULL;
+
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+
+ if (buf_priv->kernel_virtual && buf->total)
+ drm_legacy_ioremapfree(&buf_priv->map, dev);
+ }
+ }
+ return 0;
+}
+
+static int i810_wait_ring(struct drm_device *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(struct drm_device *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(struct drm_device *dev, drm_i810_private_t *dev_priv)
+{
+ struct drm_device_dma *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++) {
+ struct drm_buf *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->map.offset = buf->bus_address;
+ buf_priv->map.size = buf->total;
+ buf_priv->map.type = _DRM_AGP;
+ buf_priv->map.flags = 0;
+ buf_priv->map.mtrr = 0;
+
+ drm_legacy_ioremap(&buf_priv->map, dev);
+ buf_priv->kernel_virtual = buf_priv->map.handle;
+
+ }
+ return 0;
+}
+
+static int i810_dma_initialize(struct drm_device *dev,
+ drm_i810_private_t *dev_priv,
+ drm_i810_init_t *init)
+{
+ struct drm_map_list *r_list;
+ memset(dev_priv, 0, sizeof(drm_i810_private_t));
+
+ list_for_each_entry(r_list, &dev->maplist, 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_legacy_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_token = init->buffers_offset;
+ dev->agp_buffer_map = drm_legacy_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.map.offset = dev->agp->base + init->ring_start;
+ dev_priv->ring.map.size = init->ring_size;
+ dev_priv->ring.map.type = _DRM_AGP;
+ dev_priv->ring.map.flags = 0;
+ dev_priv->ring.map.mtrr = 0;
+
+ drm_legacy_ioremap(&dev_priv->ring.map, dev);
+
+ if (dev_priv->ring.map.handle == 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.virtual_start = dev_priv->ring.map.handle;
+
+ 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_zalloc_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;
+ }
+ 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;
+}
+
+static int i810_dma_init(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv;
+ drm_i810_init_t *init = data;
+ int retcode = 0;
+
+ switch (init->func) {
+ case I810_INIT_DMA_1_4:
+ DRM_INFO("Using v1.4 init.\n");
+ dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
+ 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;
+ default:
+ return -EINVAL;
+ }
+
+ 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(struct drm_device *dev,
+ volatile unsigned int *code)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ int i, j = 0;
+ unsigned int tmp;
+ RING_LOCALS;
+
+ BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
+
+ OUT_RING(GFX_OP_COLOR_FACTOR);
+ OUT_RING(code[I810_CTXREG_CF1]);
+
+ OUT_RING(GFX_OP_STIPPLE);
+ OUT_RING(code[I810_CTXREG_ST1]);
+
+ for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
+ tmp = code[i];
+
+ if ((tmp & (7 << 29)) == (3 << 29) &&
+ (tmp & (0x1f << 24)) < (0x1d << 24)) {
+ OUT_RING(tmp);
+ j++;
+ } else
+ printk("constext state dropped!!!\n");
+ }
+
+ if (j & 1)
+ OUT_RING(0);
+
+ ADVANCE_LP_RING();
+}
+
+static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ int i, j = 0;
+ unsigned int tmp;
+ RING_LOCALS;
+
+ BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
+
+ OUT_RING(GFX_OP_MAP_INFO);
+ OUT_RING(code[I810_TEXREG_MI1]);
+ OUT_RING(code[I810_TEXREG_MI2]);
+ OUT_RING(code[I810_TEXREG_MI3]);
+
+ for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
+ tmp = code[i];
+
+ if ((tmp & (7 << 29)) == (3 << 29) &&
+ (tmp & (0x1f << 24)) < (0x1d << 24)) {
+ OUT_RING(tmp);
+ j++;
+ } else
+ printk("texture state dropped!!!\n");
+ }
+
+ if (j & 1)
+ OUT_RING(0);
+
+ ADVANCE_LP_RING();
+}
+
+/* Need to do some additional checking when setting the dest buffer.
+ */
+static void i810EmitDestVerified(struct drm_device *dev,
+ volatile unsigned int *code)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ unsigned int tmp;
+ RING_LOCALS;
+
+ BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
+
+ tmp = code[I810_DESTREG_DI1];
+ if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
+ OUT_RING(CMD_OP_DESTBUFFER_INFO);
+ OUT_RING(tmp);
+ } else
+ DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
+ tmp, dev_priv->front_di1, dev_priv->back_di1);
+
+ /* invarient:
+ */
+ OUT_RING(CMD_OP_Z_BUFFER_INFO);
+ OUT_RING(dev_priv->zi1);
+
+ OUT_RING(GFX_OP_DESTBUFFER_VARS);
+ OUT_RING(code[I810_DESTREG_DV1]);
+
+ OUT_RING(GFX_OP_DRAWRECT_INFO);
+ OUT_RING(code[I810_DESTREG_DR1]);
+ OUT_RING(code[I810_DESTREG_DR2]);
+ OUT_RING(code[I810_DESTREG_DR3]);
+ OUT_RING(code[I810_DESTREG_DR4]);
+ OUT_RING(0);
+
+ ADVANCE_LP_RING();
+}
+
+static void i810EmitState(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ unsigned int dirty = sarea_priv->dirty;
+
+ DRM_DEBUG("%x\n", dirty);
+
+ if (dirty & I810_UPLOAD_BUFFERS) {
+ i810EmitDestVerified(dev, sarea_priv->BufferState);
+ sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
+ }
+
+ if (dirty & I810_UPLOAD_CTX) {
+ i810EmitContextVerified(dev, sarea_priv->ContextState);
+ sarea_priv->dirty &= ~I810_UPLOAD_CTX;
+ }
+
+ if (dirty & I810_UPLOAD_TEX0) {
+ i810EmitTexVerified(dev, sarea_priv->TexState[0]);
+ sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
+ }
+
+ if (dirty & I810_UPLOAD_TEX1) {
+ i810EmitTexVerified(dev, sarea_priv->TexState[1]);
+ sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
+ }
+}
+
+/* need to verify
+ */
+static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
+ unsigned int clear_color,
+ unsigned int clear_zval)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ int nbox = sarea_priv->nbox;
+ struct drm_clip_rect *pbox = sarea_priv->boxes;
+ int pitch = dev_priv->pitch;
+ int cpp = 2;
+ int i;
+ RING_LOCALS;
+
+ if (dev_priv->current_page == 1) {
+ unsigned int tmp = flags;
+
+ flags &= ~(I810_FRONT | I810_BACK);
+ if (tmp & I810_FRONT)
+ flags |= I810_BACK;
+ if (tmp & I810_BACK)
+ flags |= I810_FRONT;
+ }
+
+ i810_kernel_lost_context(dev);
+
+ if (nbox > I810_NR_SAREA_CLIPRECTS)
+ nbox = I810_NR_SAREA_CLIPRECTS;
+
+ for (i = 0; i < nbox; i++, pbox++) {
+ unsigned int x = pbox->x1;
+ unsigned int y = pbox->y1;
+ unsigned int width = (pbox->x2 - x) * cpp;
+ unsigned int height = pbox->y2 - y;
+ unsigned int start = y * pitch + x * cpp;
+
+ if (pbox->x1 > pbox->x2 ||
+ pbox->y1 > pbox->y2 ||
+ pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
+ continue;
+
+ if (flags & I810_FRONT) {
+ BEGIN_LP_RING(6);
+ OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
+ OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
+ OUT_RING((height << 16) | width);
+ OUT_RING(start);
+ OUT_RING(clear_color);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+ }
+
+ if (flags & I810_BACK) {
+ BEGIN_LP_RING(6);
+ OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
+ OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
+ OUT_RING((height << 16) | width);
+ OUT_RING(dev_priv->back_offset + start);
+ OUT_RING(clear_color);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+ }
+
+ if (flags & I810_DEPTH) {
+ BEGIN_LP_RING(6);
+ OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
+ OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
+ OUT_RING((height << 16) | width);
+ OUT_RING(dev_priv->depth_offset + start);
+ OUT_RING(clear_zval);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+ }
+ }
+}
+
+static void i810_dma_dispatch_swap(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ int nbox = sarea_priv->nbox;
+ struct drm_clip_rect *pbox = sarea_priv->boxes;
+ int pitch = dev_priv->pitch;
+ int cpp = 2;
+ int i;
+ RING_LOCALS;
+
+ DRM_DEBUG("swapbuffers\n");
+
+ i810_kernel_lost_context(dev);
+
+ if (nbox > I810_NR_SAREA_CLIPRECTS)
+ nbox = I810_NR_SAREA_CLIPRECTS;
+
+ for (i = 0; i < nbox; i++, pbox++) {
+ unsigned int w = pbox->x2 - pbox->x1;
+ unsigned int h = pbox->y2 - pbox->y1;
+ unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
+ unsigned int start = dst;
+
+ if (pbox->x1 > pbox->x2 ||
+ pbox->y1 > pbox->y2 ||
+ pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
+ continue;
+
+ BEGIN_LP_RING(6);
+ OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
+ OUT_RING(pitch | (0xCC << 16));
+ OUT_RING((h << 16) | (w * cpp));
+ if (dev_priv->current_page == 0)
+ OUT_RING(dev_priv->front_offset + start);
+ else
+ OUT_RING(dev_priv->back_offset + start);
+ OUT_RING(pitch);
+ if (dev_priv->current_page == 0)
+ OUT_RING(dev_priv->back_offset + start);
+ else
+ OUT_RING(dev_priv->front_offset + start);
+ ADVANCE_LP_RING();
+ }
+}
+
+static void i810_dma_dispatch_vertex(struct drm_device *dev,
+ struct drm_buf *buf, int discard, int used)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ struct drm_clip_rect *box = sarea_priv->boxes;
+ int nbox = sarea_priv->nbox;
+ unsigned long address = (unsigned long)buf->bus_address;
+ unsigned long start = address - dev->agp->base;
+ int i = 0;
+ RING_LOCALS;
+
+ i810_kernel_lost_context(dev);
+
+ if (nbox > I810_NR_SAREA_CLIPRECTS)
+ nbox = I810_NR_SAREA_CLIPRECTS;
+
+ if (used > 4 * 1024)
+ used = 0;
+
+ if (sarea_priv->dirty)
+ i810EmitState(dev);
+
+ if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
+ unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
+
+ *(u32 *) buf_priv->kernel_virtual =
+ ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
+
+ if (used & 4) {
+ *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
+ used += 4;
+ }
+
+ i810_unmap_buffer(buf);
+ }
+
+ if (used) {
+ do {
+ if (i < nbox) {
+ BEGIN_LP_RING(4);
+ OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
+ SC_ENABLE);
+ OUT_RING(GFX_OP_SCISSOR_INFO);
+ OUT_RING(box[i].x1 | (box[i].y1 << 16));
+ OUT_RING((box[i].x2 -
+ 1) | ((box[i].y2 - 1) << 16));
+ ADVANCE_LP_RING();
+ }
+
+ BEGIN_LP_RING(4);
+ OUT_RING(CMD_OP_BATCH_BUFFER);
+ OUT_RING(start | BB1_PROTECTED);
+ OUT_RING(start + used - 4);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ } while (++i < nbox);
+ }
+
+ if (discard) {
+ dev_priv->counter++;
+
+ (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
+ I810_BUF_HARDWARE);
+
+ BEGIN_LP_RING(8);
+ OUT_RING(CMD_STORE_DWORD_IDX);
+ OUT_RING(20);
+ OUT_RING(dev_priv->counter);
+ OUT_RING(CMD_STORE_DWORD_IDX);
+ OUT_RING(buf_priv->my_use_idx);
+ OUT_RING(I810_BUF_FREE);
+ OUT_RING(CMD_REPORT_HEAD);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+ }
+}
+
+static void i810_dma_dispatch_flip(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ int pitch = dev_priv->pitch;
+ RING_LOCALS;
+
+ DRM_DEBUG("page=%d pfCurrentPage=%d\n",
+ dev_priv->current_page,
+ dev_priv->sarea_priv->pf_current_page);
+
+ i810_kernel_lost_context(dev);
+
+ BEGIN_LP_RING(2);
+ OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
+ /* On i815 at least ASYNC is buggy */
+ /* pitch<<5 is from 11.2.8 p158,
+ its the pitch / 8 then left shifted 8,
+ so (pitch >> 3) << 8 */
+ OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
+ if (dev_priv->current_page == 0) {
+ OUT_RING(dev_priv->back_offset);
+ dev_priv->current_page = 1;
+ } else {
+ OUT_RING(dev_priv->front_offset);
+ dev_priv->current_page = 0;
+ }
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ BEGIN_LP_RING(2);
+ OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ /* Increment the frame counter. The client-side 3D driver must
+ * throttle the framerate by waiting for this value before
+ * performing the swapbuffer ioctl.
+ */
+ dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
+
+}
+
+static void i810_dma_quiescent(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ RING_LOCALS;
+
+ i810_kernel_lost_context(dev);
+
+ BEGIN_LP_RING(4);
+ OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
+ OUT_RING(CMD_REPORT_HEAD);
+ OUT_RING(0);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ i810_wait_ring(dev, dev_priv->ring.Size - 8);
+}
+
+static int i810_flush_queue(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ struct drm_device_dma *dma = dev->dma;
+ int i, ret = 0;
+ RING_LOCALS;
+
+ i810_kernel_lost_context(dev);
+
+ BEGIN_LP_RING(2);
+ OUT_RING(CMD_REPORT_HEAD);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ i810_wait_ring(dev, dev_priv->ring.Size - 8);
+
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+
+ int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
+ I810_BUF_FREE);
+
+ if (used == I810_BUF_HARDWARE)
+ DRM_DEBUG("reclaimed from HARDWARE\n");
+ if (used == I810_BUF_CLIENT)
+ DRM_DEBUG("still on client\n");
+ }
+
+ return ret;
+}
+
+/* Must be called with the lock held */
+void i810_driver_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ int i;
+
+ if (!dma)
+ return;
+ if (!dev->dev_private)
+ return;
+ if (!dma->buflist)
+ return;
+
+ i810_flush_queue(dev);
+
+ for (i = 0; i < dma->buf_count; i++) {
+ struct drm_buf *buf = dma->buflist[i];
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+
+ if (buf->file_priv == file_priv && buf_priv) {
+ int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
+ I810_BUF_FREE);
+
+ if (used == I810_BUF_CLIENT)
+ DRM_DEBUG("reclaimed from client\n");
+ if (buf_priv->currently_mapped == I810_BUF_MAPPED)
+ buf_priv->currently_mapped = I810_BUF_UNMAPPED;
+ }
+ }
+}
+
+static int i810_flush_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ i810_flush_queue(dev);
+ return 0;
+}
+
+static int i810_dma_vertex(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+ u32 *hw_status = dev_priv->hw_status_page;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
+ drm_i810_vertex_t *vertex = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ DRM_DEBUG("idx %d used %d discard %d\n",
+ vertex->idx, vertex->used, vertex->discard);
+
+ if (vertex->idx < 0 || vertex->idx > dma->buf_count)
+ return -EINVAL;
+
+ i810_dma_dispatch_vertex(dev,
+ dma->buflist[vertex->idx],
+ vertex->discard, vertex->used);
+
+ sarea_priv->last_enqueue = dev_priv->counter - 1;
+ sarea_priv->last_dispatch = (int)hw_status[5];
+
+ return 0;
+}
+
+static int i810_clear_bufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_clear_t *clear = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* GH: Someone's doing nasty things... */
+ if (!dev->dev_private)
+ return -EINVAL;
+
+ i810_dma_dispatch_clear(dev, clear->flags,
+ clear->clear_color, clear->clear_depth);
+ return 0;
+}
+
+static int i810_swap_bufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ i810_dma_dispatch_swap(dev);
+ return 0;
+}
+
+static int i810_getage(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+ u32 *hw_status = dev_priv->hw_status_page;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
+
+ sarea_priv->last_dispatch = (int)hw_status[5];
+ return 0;
+}
+
+static int i810_getbuf(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ int retcode = 0;
+ drm_i810_dma_t *d = data;
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+ u32 *hw_status = dev_priv->hw_status_page;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ d->granted = 0;
+
+ retcode = i810_dma_get_buffer(dev, d, file_priv);
+
+ DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
+ task_pid_nr(current), retcode, d->granted);
+
+ sarea_priv->last_dispatch = (int)hw_status[5];
+
+ return retcode;
+}
+
+static int i810_copybuf(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ /* Never copy - 2.4.x doesn't need it */
+ return 0;
+}
+
+static int i810_docopy(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ /* Never copy - 2.4.x doesn't need it */
+ return 0;
+}
+
+static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
+ unsigned int last_render)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ drm_i810_buf_priv_t *buf_priv = buf->dev_private;
+ drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
+ unsigned long address = (unsigned long)buf->bus_address;
+ unsigned long start = address - dev->agp->base;
+ int u;
+ RING_LOCALS;
+
+ i810_kernel_lost_context(dev);
+
+ u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
+ if (u != I810_BUF_CLIENT)
+ DRM_DEBUG("MC found buffer that isn't mine!\n");
+
+ if (used > 4 * 1024)
+ used = 0;
+
+ sarea_priv->dirty = 0x7f;
+
+ DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
+
+ dev_priv->counter++;
+ DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
+ DRM_DEBUG("start : %lx\n", start);
+ DRM_DEBUG("used : %d\n", used);
+ DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
+
+ if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
+ if (used & 4) {
+ *(u32 *) ((char *) buf_priv->virtual + used) = 0;
+ used += 4;
+ }
+
+ i810_unmap_buffer(buf);
+ }
+ BEGIN_LP_RING(4);
+ OUT_RING(CMD_OP_BATCH_BUFFER);
+ OUT_RING(start | BB1_PROTECTED);
+ OUT_RING(start + used - 4);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+
+ BEGIN_LP_RING(8);
+ OUT_RING(CMD_STORE_DWORD_IDX);
+ OUT_RING(buf_priv->my_use_idx);
+ OUT_RING(I810_BUF_FREE);
+ OUT_RING(0);
+
+ OUT_RING(CMD_STORE_DWORD_IDX);
+ OUT_RING(16);
+ OUT_RING(last_render);
+ OUT_RING(0);
+ ADVANCE_LP_RING();
+}
+
+static int i810_dma_mc(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_device_dma *dma = dev->dma;
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+ u32 *hw_status = dev_priv->hw_status_page;
+ drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
+ dev_priv->sarea_priv;
+ drm_i810_mc_t *mc = data;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (mc->idx >= dma->buf_count || mc->idx < 0)
+ return -EINVAL;
+
+ i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
+ mc->last_render);
+
+ sarea_priv->last_enqueue = dev_priv->counter - 1;
+ sarea_priv->last_dispatch = (int)hw_status[5];
+
+ return 0;
+}
+
+static int i810_rstatus(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+
+ return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
+}
+
+static int i810_ov0_info(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+ drm_i810_overlay_t *ov = data;
+
+ ov->offset = dev_priv->overlay_offset;
+ ov->physical = dev_priv->overlay_physical;
+
+ return 0;
+}
+
+static int i810_fstatus(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+ return I810_READ(0x30008);
+}
+
+static int i810_ov0_flip(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* Tell the overlay to update */
+ I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
+
+ return 0;
+}
+
+/* Not sure why this isn't set all the time:
+ */
+static void i810_do_init_pageflip(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("\n");
+ dev_priv->page_flipping = 1;
+ dev_priv->current_page = 0;
+ dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
+}
+
+static int i810_do_cleanup_pageflip(struct drm_device *dev)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("\n");
+ if (dev_priv->current_page != 0)
+ i810_dma_dispatch_flip(dev);
+
+ dev_priv->page_flipping = 0;
+ return 0;
+}
+
+static int i810_flip_bufs(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_i810_private_t *dev_priv = dev->dev_private;
+
+ DRM_DEBUG("\n");
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ if (!dev_priv->page_flipping)
+ i810_do_init_pageflip(dev);
+
+ i810_dma_dispatch_flip(dev);
+ return 0;
+}
+
+int i810_driver_load(struct drm_device *dev, unsigned long flags)
+{
+ /* Our userspace depends upon the agp mapping support. */
+ if (!dev->agp)
+ return -EINVAL;
+
+ pci_set_master(dev->pdev);
+
+ return 0;
+}
+
+void i810_driver_lastclose(struct drm_device *dev)
+{
+ i810_dma_cleanup(dev);
+}
+
+void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
+{
+ if (dev->dev_private) {
+ drm_i810_private_t *dev_priv = dev->dev_private;
+ if (dev_priv->page_flipping)
+ i810_do_cleanup_pageflip(dev);
+ }
+
+ if (file_priv->master && file_priv->master->lock.hw_lock) {
+ drm_legacy_idlelock_take(&file_priv->master->lock);
+ i810_driver_reclaim_buffers(dev, file_priv);
+ drm_legacy_idlelock_release(&file_priv->master->lock);
+ } else {
+ /* master disappeared, clean up stuff anyway and hope nothing
+ * goes wrong */
+ i810_driver_reclaim_buffers(dev, file_priv);
+ }
+
+}
+
+int i810_driver_dma_quiescent(struct drm_device *dev)
+{
+ i810_dma_quiescent(dev);
+ return 0;
+}
+
+const struct drm_ioctl_desc i810_ioctls[] = {
+ DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
+ DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
+};
+
+int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
+
+/**
+ * Determine if the device really is AGP or not.
+ *
+ * All Intel graphics chipsets are treated as AGP, even if they are really
+ * PCI-e.
+ *
+ * \param dev The device to be tested.
+ *
+ * \returns
+ * A value of 1 is always retured to indictate every i810 is AGP.
+ */
+int i810_driver_device_is_agp(struct drm_device *dev)
+{
+ return 1;
+}
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
new file mode 100644
index 000000000..44f4a131c
--- /dev/null
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -0,0 +1,104 @@
+/* i810_drv.c -- I810 driver -*- linux-c -*-
+ * Created: Mon Dec 13 01:56:22 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
+ * VA LINUX SYSTEMS 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>
+ * Gareth Hughes <gareth@valinux.com>
+ */
+
+#include <linux/module.h>
+
+#include <drm/drmP.h>
+#include <drm/i810_drm.h>
+#include "i810_drv.h"
+
+#include <drm/drm_pciids.h>
+
+static struct pci_device_id pciidlist[] = {
+ i810_PCI_IDS
+};
+
+static const struct file_operations i810_driver_fops = {
+ .owner = THIS_MODULE,
+ .open = drm_open,
+ .release = drm_release,
+ .unlocked_ioctl = drm_ioctl,
+ .mmap = drm_legacy_mmap,
+ .poll = drm_poll,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = drm_compat_ioctl,
+#endif
+ .llseek = noop_llseek,
+};
+
+static struct drm_driver driver = {
+ .driver_features =
+ DRIVER_USE_AGP |
+ DRIVER_HAVE_DMA,
+ .dev_priv_size = sizeof(drm_i810_buf_priv_t),
+ .load = i810_driver_load,
+ .lastclose = i810_driver_lastclose,
+ .preclose = i810_driver_preclose,
+ .set_busid = drm_pci_set_busid,
+ .device_is_agp = i810_driver_device_is_agp,
+ .dma_quiescent = i810_driver_dma_quiescent,
+ .ioctls = i810_ioctls,
+ .fops = &i810_driver_fops,
+ .name = DRIVER_NAME,
+ .desc = DRIVER_DESC,
+ .date = DRIVER_DATE,
+ .major = DRIVER_MAJOR,
+ .minor = DRIVER_MINOR,
+ .patchlevel = DRIVER_PATCHLEVEL,
+};
+
+static struct pci_driver i810_pci_driver = {
+ .name = DRIVER_NAME,
+ .id_table = pciidlist,
+};
+
+static int __init i810_init(void)
+{
+ if (num_possible_cpus() > 1) {
+ pr_err("drm/i810 does not support SMP\n");
+ return -EINVAL;
+ }
+ driver.num_ioctls = i810_max_ioctl;
+ return drm_pci_init(&driver, &i810_pci_driver);
+}
+
+static void __exit i810_exit(void)
+{
+ drm_pci_exit(&driver, &i810_pci_driver);
+}
+
+module_init(i810_init);
+module_exit(i810_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
new file mode 100644
index 000000000..93ec5dc4e
--- /dev/null
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -0,0 +1,245 @@
+/* i810_drv.h -- Private header for the Matrox g200/g400 driver -*- 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>
+ *
+ */
+
+#ifndef _I810_DRV_H_
+#define _I810_DRV_H_
+
+#include <drm/drm_legacy.h>
+
+/* General customization:
+ */
+
+#define DRIVER_AUTHOR "VA Linux Systems Inc."
+
+#define DRIVER_NAME "i810"
+#define DRIVER_DESC "Intel i810"
+#define DRIVER_DATE "20030605"
+
+/* Interface history
+ *
+ * 1.1 - XFree86 4.1
+ * 1.2 - XvMC interfaces
+ * - XFree86 4.2
+ * 1.2.1 - Disable copying code (leave stub ioctls for backwards compatibility)
+ * - Remove requirement for interrupt (leave stubs again)
+ * 1.3 - Add page flipping.
+ * 1.4 - fix DRM interface
+ */
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 4
+#define DRIVER_PATCHLEVEL 0
+
+typedef struct drm_i810_buf_priv {
+ u32 *in_use;
+ int my_use_idx;
+ int currently_mapped;
+ void *virtual;
+ void *kernel_virtual;
+ drm_local_map_t map;
+} drm_i810_buf_priv_t;
+
+typedef struct _drm_i810_ring_buffer {
+ int tail_mask;
+ unsigned long Start;
+ unsigned long End;
+ unsigned long Size;
+ u8 *virtual_start;
+ int head;
+ int tail;
+ int space;
+ drm_local_map_t map;
+} drm_i810_ring_buffer_t;
+
+typedef struct drm_i810_private {
+ struct drm_local_map *sarea_map;
+ struct drm_local_map *mmio_map;
+
+ drm_i810_sarea_t *sarea_priv;
+ drm_i810_ring_buffer_t ring;
+
+ void *hw_status_page;
+ unsigned long counter;
+
+ dma_addr_t dma_status_page;
+
+ struct drm_buf *mmap_buffer;
+
+ u32 front_di1, back_di1, zi1;
+
+ int back_offset;
+ int depth_offset;
+ int overlay_offset;
+ int overlay_physical;
+ int w, h;
+ int pitch;
+ int back_pitch;
+ int depth_pitch;
+
+ int do_boxes;
+ int dma_used;
+
+ int current_page;
+ int page_flipping;
+
+ wait_queue_head_t irq_queue;
+ atomic_t irq_received;
+ atomic_t irq_emitted;
+
+ int front_offset;
+} drm_i810_private_t;
+
+ /* i810_dma.c */
+extern int i810_driver_dma_quiescent(struct drm_device *dev);
+void i810_driver_reclaim_buffers(struct drm_device *dev,
+ struct drm_file *file_priv);
+extern int i810_driver_load(struct drm_device *, unsigned long flags);
+extern void i810_driver_lastclose(struct drm_device *dev);
+extern void i810_driver_preclose(struct drm_device *dev,
+ struct drm_file *file_priv);
+extern int i810_driver_device_is_agp(struct drm_device *dev);
+
+extern long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+extern const struct drm_ioctl_desc i810_ioctls[];
+extern int i810_max_ioctl;
+
+#define I810_BASE(reg) ((unsigned long) \
+ dev_priv->mmio_map->handle)
+#define I810_ADDR(reg) (I810_BASE(reg) + reg)
+#define I810_DEREF(reg) (*(__volatile__ int *)I810_ADDR(reg))
+#define I810_READ(reg) I810_DEREF(reg)
+#define I810_WRITE(reg, val) do { I810_DEREF(reg) = val; } while (0)
+#define I810_DEREF16(reg) (*(__volatile__ u16 *)I810_ADDR(reg))
+#define I810_READ16(reg) I810_DEREF16(reg)
+#define I810_WRITE16(reg, val) do { I810_DEREF16(reg) = val; } while (0)
+
+#define I810_VERBOSE 0
+#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)\n", n); \
+ 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)
+
+#define GFX_OP_USER_INTERRUPT ((0<<29)|(2<<23))
+#define GFX_OP_BREAKPOINT_INTERRUPT ((0<<29)|(1<<23))
+#define CMD_REPORT_HEAD (7<<23)
+#define CMD_STORE_DWORD_IDX ((0x21<<23) | 0x1)
+#define CMD_OP_BATCH_BUFFER ((0x0<<29)|(0x30<<23)|0x1)
+
+#define INST_PARSER_CLIENT 0x00000000
+#define INST_OP_FLUSH 0x02000000
+#define INST_FLUSH_MAP_CACHE 0x00000001
+
+#define BB1_START_ADDR_MASK (~0x7)
+#define BB1_PROTECTED (1<<0)
+#define BB1_UNPROTECTED (0<<0)
+#define BB2_END_ADDR_MASK (~0x7)
+
+#define I810REG_HWSTAM 0x02098
+#define I810REG_INT_IDENTITY_R 0x020a4
+#define I810REG_INT_MASK_R 0x020a8
+#define I810REG_INT_ENABLE_R 0x020a0
+
+#define LP_RING 0x2030
+#define HP_RING 0x2040
+#define RING_TAIL 0x00
+#define TAIL_ADDR 0x000FFFF8
+#define RING_HEAD 0x04
+#define HEAD_WRAP_COUNT 0xFFE00000
+#define HEAD_WRAP_ONE 0x00200000
+#define HEAD_ADDR 0x001FFFFC
+#define RING_START 0x08
+#define START_ADDR 0x00FFFFF8
+#define RING_LEN 0x0C
+#define RING_NR_PAGES 0x000FF000
+#define RING_REPORT_MASK 0x00000006
+#define RING_REPORT_64K 0x00000002
+#define RING_REPORT_128K 0x00000004
+#define RING_NO_REPORT 0x00000000
+#define RING_VALID_MASK 0x00000001
+#define RING_VALID 0x00000001
+#define RING_INVALID 0x00000000
+
+#define GFX_OP_SCISSOR ((0x3<<29)|(0x1c<<24)|(0x10<<19))
+#define SC_UPDATE_SCISSOR (0x1<<1)
+#define SC_ENABLE_MASK (0x1<<0)
+#define SC_ENABLE (0x1<<0)
+
+#define GFX_OP_SCISSOR_INFO ((0x3<<29)|(0x1d<<24)|(0x81<<16)|(0x1))
+#define SCI_YMIN_MASK (0xffff<<16)
+#define SCI_XMIN_MASK (0xffff<<0)
+#define SCI_YMAX_MASK (0xffff<<16)
+#define SCI_XMAX_MASK (0xffff<<0)
+
+#define GFX_OP_COLOR_FACTOR ((0x3<<29)|(0x1d<<24)|(0x1<<16)|0x0)
+#define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
+#define GFX_OP_MAP_INFO ((0x3<<29)|(0x1d<<24)|0x2)
+#define GFX_OP_DESTBUFFER_VARS ((0x3<<29)|(0x1d<<24)|(0x85<<16)|0x0)
+#define GFX_OP_DRAWRECT_INFO ((0x3<<29)|(0x1d<<24)|(0x80<<16)|(0x3))
+#define GFX_OP_PRIMITIVE ((0x3<<29)|(0x1f<<24))
+
+#define CMD_OP_Z_BUFFER_INFO ((0x0<<29)|(0x16<<23))
+#define CMD_OP_DESTBUFFER_INFO ((0x0<<29)|(0x15<<23))
+#define CMD_OP_FRONTBUFFER_INFO ((0x0<<29)|(0x14<<23))
+#define CMD_OP_WAIT_FOR_EVENT ((0x0<<29)|(0x03<<23))
+
+#define BR00_BITBLT_CLIENT 0x40000000
+#define BR00_OP_COLOR_BLT 0x10000000
+#define BR00_OP_SRC_COPY_BLT 0x10C00000
+#define BR13_SOLID_PATTERN 0x80000000
+
+#define WAIT_FOR_PLANE_A_SCANLINES (1<<1)
+#define WAIT_FOR_PLANE_A_FLIP (1<<2)
+#define WAIT_FOR_VBLANK (1<<3)
+
+#endif