aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/extras/drm/shared/i915_dma.c
diff options
context:
space:
mode:
authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2015-02-02 15:02:49 +0100
commitb16b9e4656e7199c2aec74a4c8ebc7a875d3ba73 (patch)
tree4361edef0d42d5bf5ac984ef72b4fac35426eae7 /nx-X11/extras/drm/shared/i915_dma.c
parent0d5a83e986f39982c0924652a3662e60b1f23162 (diff)
downloadnx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.gz
nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.tar.bz2
nx-libs-b16b9e4656e7199c2aec74a4c8ebc7a875d3ba73.zip
massive reduction of unneeded files
Diffstat (limited to 'nx-X11/extras/drm/shared/i915_dma.c')
-rw-r--r--nx-X11/extras/drm/shared/i915_dma.c769
1 files changed, 0 insertions, 769 deletions
diff --git a/nx-X11/extras/drm/shared/i915_dma.c b/nx-X11/extras/drm/shared/i915_dma.c
deleted file mode 100644
index 14f7fd6eb..000000000
--- a/nx-X11/extras/drm/shared/i915_dma.c
+++ /dev/null
@@ -1,769 +0,0 @@
-/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
- */
-/**************************************************************************
- *
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * All Rights Reserved.
- *
- **************************************************************************/
-
-#include "i915.h"
-#include "drmP.h"
-#include "drm.h"
-#include "i915_drm.h"
-#include "i915_drv.h"
-
-static inline void i915_print_status_page(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- u32 *temp = dev_priv->hw_status_page;
-
- if (!temp) {
- DRM_DEBUG("no status page\n");
- return;
- }
-
- 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]);
-
-}
-
-/* Really want an OS-independent resettable timer. Would like to have
- * this loop run for (eg) 3 sec, but have the timer reset every time
- * the head pointer changes, so that EBUSY only happens if the ring
- * actually stalls for (eg) 3 seconds.
- */
-int i915_wait_ring(drm_device_t * dev, int n, const char *caller)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
- u32 last_head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- int i;
-
- for (i = 0; i < 10000; i++) {
- ring->head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- ring->space = ring->head - (ring->tail + 8);
- if (ring->space < 0)
- ring->space += ring->Size;
- if (ring->space >= n)
- return 0;
-
- dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
-
- if (ring->head != last_head)
- i = 0;
-
- last_head = ring->head;
- }
-
- return DRM_ERR(EBUSY);
-}
-
-void i915_kernel_lost_context(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
-
- ring->head = I915_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
- ring->tail = I915_READ(LP_RING + RING_TAIL) & TAIL_ADDR;
- ring->space = ring->head - (ring->tail + 8);
- if (ring->space < 0)
- ring->space += ring->Size;
-
- if (ring->head == ring->tail)
- dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
-}
-
-int i915_dma_cleanup(drm_device_t * dev)
-{
- /* 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 (dev->irq)
- DRM(irq_uninstall) (dev);
-
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv =
- (drm_i915_private_t *) dev->dev_private;
-
- if (dev_priv->ring.virtual_start) {
- drm_core_ioremapfree(&dev_priv->ring.map, dev);
- }
-
- if (dev_priv->hw_status_page) {
-#ifdef __FreeBSD__
-#if __FreeBSD_version > 500000
- contigfree(dev_priv->hw_status_page, PAGE_SIZE, M_DRM);
-#endif
-#else
- pci_free_consistent(dev->pdev, PAGE_SIZE,
- dev_priv->hw_status_page,
- dev_priv->dma_status_page);
-#endif
- /* Need to rewrite hardware status page */
- I915_WRITE(0x02080, 0x1ffff000);
- }
-
- DRM(free) (dev->dev_private, sizeof(drm_i915_private_t),
- DRM_MEM_DRIVER);
-
- dev->dev_private = NULL;
- }
-
- return 0;
-}
-
-static int i915_initialize(drm_device_t * dev,
- drm_i915_private_t * dev_priv,
- drm_i915_init_t * init)
-{
- memset(dev_priv, 0, sizeof(drm_i915_private_t));
-
- DRM_GETSAREA();
- if (!dev_priv->sarea) {
- DRM_ERROR("can not find sarea!\n");
- dev->dev_private = (void *)dev_priv;
- i915_dma_cleanup(dev);
- return DRM_ERR(EINVAL);
- }
-
- dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
- if (!dev_priv->mmio_map) {
- dev->dev_private = (void *)dev_priv;
- i915_dma_cleanup(dev);
- DRM_ERROR("can not find mmio map!\n");
- return DRM_ERR(EINVAL);
- }
-
- dev_priv->sarea_priv = (drm_i915_sarea_t *)
- ((u8 *) dev_priv->sarea->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.tail_mask = dev_priv->ring.Size - 1;
-
- dev_priv->ring.map.offset = init->ring_start;
- dev_priv->ring.map.size = init->ring_size;
- dev_priv->ring.map.type = 0;
- dev_priv->ring.map.flags = 0;
- dev_priv->ring.map.mtrr = 0;
-
- drm_core_ioremap(&dev_priv->ring.map, dev);
-
- if (dev_priv->ring.map.handle == NULL) {
- dev->dev_private = (void *)dev_priv;
- i915_dma_cleanup(dev);
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- return DRM_ERR(ENOMEM);
- }
-
- dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
-
- dev_priv->back_offset = init->back_offset;
- dev_priv->front_offset = init->front_offset;
- dev_priv->current_page = 0;
- dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
-
- /* We are using separate values as placeholders for mechanisms for
- * private backbuffer/depthbuffer usage.
- */
- dev_priv->use_mi_batchbuffer_start = 0;
-
- /* Allow hardware batchbuffers unless told otherwise.
- */
- dev_priv->allow_batchbuffer = 1;
-
- /* Program Hardware Status Page */
-#ifdef __FreeBSD__
- dev_priv->hw_status_page =
- contigmalloc(PAGE_SIZE, DRM(M_DRM), M_NOWAIT, 0ul, 0, 0, 0);
- dev_priv->dma_status_page = vtophys(dev_priv->hw_status_page);
-#else
- dev_priv->hw_status_page =
- pci_alloc_consistent(dev->pdev, PAGE_SIZE,
- &dev_priv->dma_status_page);
-#endif
-
- if (!dev_priv->hw_status_page) {
- dev->dev_private = (void *)dev_priv;
- i915_dma_cleanup(dev);
- DRM_ERROR("Can not allocate hardware status page\n");
- return DRM_ERR(ENOMEM);
- }
- memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
- DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
-
- I915_WRITE(0x02080, dev_priv->dma_status_page);
- DRM_DEBUG("Enabled hardware status page\n");
-
- dev->dev_private = (void *)dev_priv;
-
- return 0;
-}
-
-static int i915_dma_resume(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-
- DRM_DEBUG("%s\n", __FUNCTION__);
-
- if (!dev_priv->sarea) {
- DRM_ERROR("can not find sarea!\n");
- return DRM_ERR(EINVAL);
- }
-
- if (!dev_priv->mmio_map) {
- DRM_ERROR("can not find mmio map!\n");
- return DRM_ERR(EINVAL);
- }
-
- if (dev_priv->ring.map.handle == NULL) {
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- return DRM_ERR(ENOMEM);
- }
-
- /* Program Hardware Status Page */
- if (!dev_priv->hw_status_page) {
- DRM_ERROR("Can not find hardware status page\n");
- return DRM_ERR(EINVAL);
- }
- DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
-
- I915_WRITE(0x02080, dev_priv->dma_status_page);
- DRM_DEBUG("Enabled hardware status page\n");
-
- return 0;
-}
-
-int i915_dma_init(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_i915_private_t *dev_priv;
- drm_i915_init_t init;
- int retcode = 0;
-
- DRM_COPY_FROM_USER_IOCTL(init, (drm_i915_init_t __user *) data,
- sizeof(init));
-
- switch (init.func) {
- case I915_INIT_DMA:
- dev_priv = DRM(alloc) (sizeof(drm_i915_private_t),
- DRM_MEM_DRIVER);
- if (dev_priv == NULL)
- return DRM_ERR(ENOMEM);
- retcode = i915_initialize(dev, dev_priv, &init);
- break;
- case I915_CLEANUP_DMA:
- retcode = i915_dma_cleanup(dev);
- break;
- case I915_RESUME_DMA:
- retcode = i915_dma_resume(dev);
- break;
- default:
- retcode = -EINVAL;
- break;
- }
-
- return retcode;
-}
-
-/* Implement basically the same security restrictions as hardware does
- * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
- *
- * Most of the calculations below involve calculating the size of a
- * particular instruction. It's important to get the size right as
- * that tells us where the next instruction to check is. Any illegal
- * instruction detected will be given a size of zero, which is a
- * signal to abort the rest of the buffer.
- */
-static int do_validate_cmd(int cmd)
-{
- switch (((cmd >> 29) & 0x7)) {
- case 0x0:
- switch ((cmd >> 23) & 0x3f) {
- case 0x0:
- return 1; /* MI_NOOP */
- case 0x4:
- return 1; /* MI_FLUSH */
- default:
- return 0; /* disallow everything else */
- }
- break;
- case 0x1:
- return 0; /* reserved */
- case 0x2:
- return (cmd & 0xff) + 2; /* 2d commands */
- case 0x3:
- if (((cmd >> 24) & 0x1f) <= 0x18)
- return 1;
-
- switch ((cmd >> 24) & 0x1f) {
- case 0x1c:
- return 1;
- case 0x1d:
- switch ((cmd >> 16) & 0xff) {
- case 0x3:
- return (cmd & 0x1f) + 2;
- case 0x4:
- return (cmd & 0xf) + 2;
- default:
- return (cmd & 0xffff) + 2;
- }
- case 0x1e:
- if (cmd & (1 << 23))
- return (cmd & 0xffff) + 1;
- else
- return 1;
- case 0x1f:
- if ((cmd & (1 << 23)) == 0) /* inline vertices */
- return (cmd & 0x1ffff) + 2;
- else if (cmd & (1 << 17)) /* indirect random */
- if ((cmd & 0xffff) == 0)
- return 0; /* unknown length, too hard */
- else
- return (((cmd & 0xffff) + 1) / 2) + 1;
- else
- return 2; /* indirect sequential */
- default:
- return 0;
- }
- default:
- return 0;
- }
-
- return 0;
-}
-
-static int validate_cmd(int cmd)
-{
- int ret = do_validate_cmd(cmd);
-
-/* printk("validate_cmd( %x ): %d\n", cmd, ret); */
-
- return ret;
-}
-
-static int i915_emit_cmds(drm_device_t * dev, int __user * buffer, int dwords)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- int i;
- RING_LOCALS;
-
- for (i = 0; i < dwords;) {
- int cmd, sz;
-
- if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
- return DRM_ERR(EINVAL);
-
-/* printk("%d/%d ", i, dwords); */
-
- if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
- return DRM_ERR(EINVAL);
-
- BEGIN_LP_RING(sz);
- OUT_RING(cmd);
-
- while (++i, --sz) {
- if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i],
- sizeof(cmd))) {
- return DRM_ERR(EINVAL);
- }
- OUT_RING(cmd);
- }
- ADVANCE_LP_RING();
- }
-
- return 0;
-}
-
-static int i915_emit_box(drm_device_t * dev,
- drm_clip_rect_t __user * boxes,
- int i, int DR1, int DR4)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_clip_rect_t box;
- RING_LOCALS;
-
- if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) {
- return EFAULT;
- }
-
- if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
- DRM_ERROR("Bad box %d,%d..%d,%d\n",
- box.x1, box.y1, box.x2, box.y2);
- return DRM_ERR(EINVAL);
- }
-
- BEGIN_LP_RING(6);
- OUT_RING(GFX_OP_DRAWRECT_INFO);
- OUT_RING(DR1);
- OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
- OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
- OUT_RING(DR4);
- OUT_RING(0);
- ADVANCE_LP_RING();
-
- return 0;
-}
-
-static int i915_dispatch_cmdbuffer(drm_device_t * dev,
- drm_i915_cmdbuffer_t * cmd)
-{
- int nbox = cmd->num_cliprects;
- int i = 0, count, ret;
-
- if (cmd->sz & 0x3) {
- DRM_ERROR("alignment");
- return DRM_ERR(EINVAL);
- }
-
- i915_kernel_lost_context(dev);
-
- count = nbox ? nbox : 1;
-
- for (i = 0; i < count; i++) {
- if (i < nbox) {
- ret = i915_emit_box(dev, cmd->cliprects, i,
- cmd->DR1, cmd->DR4);
- if (ret)
- return ret;
- }
-
- ret = i915_emit_cmds(dev, (int __user *)cmd->buf, cmd->sz / 4);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static int i915_dispatch_batchbuffer(drm_device_t * dev,
- drm_i915_batchbuffer_t * batch)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_clip_rect_t __user *boxes = batch->cliprects;
- int nbox = batch->num_cliprects;
- int i = 0, count;
- RING_LOCALS;
-
- if ((batch->start | batch->used) & 0x7) {
- DRM_ERROR("alignment");
- return DRM_ERR(EINVAL);
- }
-
- i915_kernel_lost_context(dev);
-
- count = nbox ? nbox : 1;
-
- for (i = 0; i < count; i++) {
- if (i < nbox) {
- int ret = i915_emit_box(dev, boxes, i,
- batch->DR1, batch->DR4);
- if (ret)
- return ret;
- }
-
- if (dev_priv->use_mi_batchbuffer_start) {
- BEGIN_LP_RING(2);
- OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
- OUT_RING(batch->start | MI_BATCH_NON_SECURE);
- ADVANCE_LP_RING();
- } else {
- BEGIN_LP_RING(4);
- OUT_RING(MI_BATCH_BUFFER);
- OUT_RING(batch->start | MI_BATCH_NON_SECURE);
- OUT_RING(batch->start + batch->used - 4);
- OUT_RING(0);
- ADVANCE_LP_RING();
- }
- }
-
- dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;
-
- BEGIN_LP_RING(4);
- OUT_RING(CMD_STORE_DWORD_IDX);
- OUT_RING(20);
- OUT_RING(dev_priv->counter);
- OUT_RING(0);
- ADVANCE_LP_RING();
-
- return 0;
-}
-
-static int i915_dispatch_flip(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- RING_LOCALS;
-
- DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
- __FUNCTION__,
- dev_priv->current_page,
- dev_priv->sarea_priv->pf_current_page);
-
- i915_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(6);
- OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
- OUT_RING(0);
- 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(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
- OUT_RING(0);
- ADVANCE_LP_RING();
-
- dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;
-
- BEGIN_LP_RING(4);
- OUT_RING(CMD_STORE_DWORD_IDX);
- OUT_RING(20);
- OUT_RING(dev_priv->counter);
- OUT_RING(0);
- ADVANCE_LP_RING();
-
- dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
- return 0;
-}
-
-static int i915_quiescent(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
-
- i915_kernel_lost_context(dev);
- return i915_wait_ring(dev, dev_priv->ring.Size - 8, __FUNCTION__);
-}
-
-int i915_flush_ioctl(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
-
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i915_flush_ioctl called without lock held\n");
- return DRM_ERR(EINVAL);
- }
-
- return i915_quiescent(dev);
-}
-
-int i915_batchbuffer(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u32 *hw_status = dev_priv->hw_status_page;
- drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
- dev_priv->sarea_priv;
- drm_i915_batchbuffer_t batch;
- int ret;
-
- if (!dev_priv->allow_batchbuffer) {
- DRM_ERROR("Batchbuffer ioctl disabled\n");
- return DRM_ERR(EINVAL);
- }
-
- DRM_COPY_FROM_USER_IOCTL(batch, (drm_i915_batchbuffer_t __user *) data,
- sizeof(batch));
-
- DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
- batch.start, batch.used, batch.num_cliprects);
-
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i915_batchbuffer called without lock held\n");
- return DRM_ERR(EINVAL);
- }
-
- if (batch.num_cliprects && DRM_VERIFYAREA_READ(batch.cliprects,
- batch.num_cliprects *
- sizeof(drm_clip_rect_t)))
- return DRM_ERR(EFAULT);
-
- ret = i915_dispatch_batchbuffer(dev, &batch);
-
- sarea_priv->last_dispatch = (int)hw_status[5];
- return ret;
-}
-
-int i915_cmdbuffer(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u32 *hw_status = dev_priv->hw_status_page;
- drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
- dev_priv->sarea_priv;
- drm_i915_cmdbuffer_t cmdbuf;
- int ret;
-
- DRM_COPY_FROM_USER_IOCTL(cmdbuf, (drm_i915_cmdbuffer_t __user *) data,
- sizeof(cmdbuf));
-
- DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
- cmdbuf.buf, cmdbuf.sz, cmdbuf.num_cliprects);
-
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i915_cmdbuffer called without lock held\n");
- return DRM_ERR(EINVAL);
- }
-
- if (cmdbuf.num_cliprects &&
- DRM_VERIFYAREA_READ(cmdbuf.cliprects,
- cmdbuf.num_cliprects *
- sizeof(drm_clip_rect_t))) {
- DRM_ERROR("Fault accessing cliprects\n");
- return DRM_ERR(EFAULT);
- }
-
- ret = i915_dispatch_cmdbuffer(dev, &cmdbuf);
- if (ret) {
- DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
- return ret;
- }
-
- sarea_priv->last_dispatch = (int)hw_status[5];
- return 0;
-}
-
-int i915_do_cleanup_pageflip(drm_device_t * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
-
- DRM_DEBUG("%s\n", __FUNCTION__);
- if (dev_priv->current_page != 0)
- i915_dispatch_flip(dev);
-
- return 0;
-}
-
-int i915_flip_bufs(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
-
- DRM_DEBUG("%s\n", __FUNCTION__);
- if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
- DRM_ERROR("i915_flip_buf called without lock held\n");
- return DRM_ERR(EINVAL);
- }
-
- return i915_dispatch_flip(dev);
-}
-
-int i915_getparam(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_getparam_t param;
- int value;
-
- if (!dev_priv) {
- DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
- return DRM_ERR(EINVAL);
- }
-
- DRM_COPY_FROM_USER_IOCTL(param, (drm_i915_getparam_t __user *) data,
- sizeof(param));
-
- switch (param.param) {
- case I915_PARAM_IRQ_ACTIVE:
- value = dev->irq ? 1 : 0;
- break;
- case I915_PARAM_ALLOW_BATCHBUFFER:
- value = dev_priv->allow_batchbuffer ? 1 : 0;
- break;
- default:
- DRM_ERROR("Unkown parameter %d\n", param.param);
- return DRM_ERR(EINVAL);
- }
-
- if (DRM_COPY_TO_USER(param.value, &value, sizeof(int))) {
- DRM_ERROR("DRM_COPY_TO_USER failed\n");
- return DRM_ERR(EFAULT);
- }
-
- return 0;
-}
-
-int i915_setparam(DRM_IOCTL_ARGS)
-{
- DRM_DEVICE;
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_setparam_t param;
-
- if (!dev_priv) {
- DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
- return DRM_ERR(EINVAL);
- }
-
- DRM_COPY_FROM_USER_IOCTL(param, (drm_i915_setparam_t __user *) data,
- sizeof(param));
-
- switch (param.param) {
- case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
- dev_priv->use_mi_batchbuffer_start = param.value;
- break;
- case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
- dev_priv->tex_lru_log_granularity = param.value;
- break;
- case I915_SETPARAM_ALLOW_BATCHBUFFER:
- dev_priv->allow_batchbuffer = param.value;
- break;
- default:
- DRM_ERROR("unknown parameter %d\n", param.param);
- return DRM_ERR(EINVAL);
- }
-
- return 0;
-}
-
-static void i915_driver_pretakedown(drm_device_t *dev)
-{
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv = dev->dev_private;
- i915_mem_takedown(&(dev_priv->agp_heap));
- }
- i915_dma_cleanup(dev);
-}
-
-static void i915_driver_prerelease(drm_device_t *dev, DRMFILE filp)
-{
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv = dev->dev_private;
- i915_mem_release(dev, filp, dev_priv->agp_heap);
- }
-}
-
-void i915_driver_register_fns(drm_device_t *dev)
-{
- dev->driver_features =
- DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
- DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED;
- dev->fn_tbl.pretakedown = i915_driver_pretakedown;
- dev->fn_tbl.prerelease = i915_driver_prerelease;
- dev->fn_tbl.irq_preinstall = i915_driver_irq_preinstall;
- dev->fn_tbl.irq_postinstall = i915_driver_irq_postinstall;
- dev->fn_tbl.irq_uninstall = i915_driver_irq_uninstall;
- dev->fn_tbl.irq_handler = i915_driver_irq_handler;
-
- 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;
-}