summaryrefslogtreecommitdiffstats
path: root/drivers/char/drm/i915_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/drm/i915_dma.c')
-rw-r--r--drivers/char/drm/i915_dma.c858
1 files changed, 0 insertions, 858 deletions
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
deleted file mode 100644
index 8897434..0000000
--- a/drivers/char/drm/i915_dma.c
+++ /dev/null
@@ -1,858 +0,0 @@
-/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
- */
-/*
- * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
- * 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, sub license, 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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.
- *
- */
-
-#include "drmP.h"
-#include "drm.h"
-#include "i915_drm.h"
-#include "i915_drv.h"
-
-/* 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(struct drm_device * 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 -EBUSY;
-}
-
-void i915_kernel_lost_context(struct drm_device * 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;
-}
-
-static int i915_dma_cleanup(struct drm_device * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- /* 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_priv->ring.virtual_start) {
- drm_core_ioremapfree(&dev_priv->ring.map, dev);
- dev_priv->ring.virtual_start = 0;
- dev_priv->ring.map.handle = 0;
- dev_priv->ring.map.size = 0;
- }
-
- if (dev_priv->status_page_dmah) {
- drm_pci_free(dev, dev_priv->status_page_dmah);
- dev_priv->status_page_dmah = NULL;
- /* Need to rewrite hardware status page */
- I915_WRITE(0x02080, 0x1ffff000);
- }
-
- if (dev_priv->status_gfx_addr) {
- dev_priv->status_gfx_addr = 0;
- drm_core_ioremapfree(&dev_priv->hws_map, dev);
- I915_WRITE(0x2080, 0x1ffff000);
- }
-
- return 0;
-}
-
-static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
-
- dev_priv->sarea = drm_getsarea(dev);
- if (!dev_priv->sarea) {
- DRM_ERROR("can not find sarea!\n");
- i915_dma_cleanup(dev);
- return -EINVAL;
- }
-
- dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
- if (!dev_priv->mmio_map) {
- i915_dma_cleanup(dev);
- DRM_ERROR("can not find mmio map!\n");
- return -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) {
- i915_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->cpp = init->cpp;
- 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;
- if (IS_I965G(dev)) /* 965 doesn't support older method */
- dev_priv->use_mi_batchbuffer_start = 1;
-
- /* Allow hardware batchbuffers unless told otherwise.
- */
- dev_priv->allow_batchbuffer = 1;
-
- /* Program Hardware Status Page */
- if (!I915_NEED_GFX_HWS(dev)) {
- dev_priv->status_page_dmah =
- drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
-
- if (!dev_priv->status_page_dmah) {
- i915_dma_cleanup(dev);
- DRM_ERROR("Can not allocate hardware status page\n");
- return -ENOMEM;
- }
- dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
- dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
-
- memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
- I915_WRITE(0x02080, dev_priv->dma_status_page);
- }
- DRM_DEBUG("Enabled hardware status page\n");
- return 0;
-}
-
-static int i915_dma_resume(struct drm_device * dev)
-{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
-
- DRM_DEBUG("%s\n", __func__);
-
- if (!dev_priv->sarea) {
- DRM_ERROR("can not find sarea!\n");
- return -EINVAL;
- }
-
- if (!dev_priv->mmio_map) {
- DRM_ERROR("can not find mmio map!\n");
- return -EINVAL;
- }
-
- if (dev_priv->ring.map.handle == NULL) {
- DRM_ERROR("can not ioremap virtual address for"
- " ring buffer\n");
- return -ENOMEM;
- }
-
- /* Program Hardware Status Page */
- if (!dev_priv->hw_status_page) {
- DRM_ERROR("Can not find hardware status page\n");
- return -EINVAL;
- }
- DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
-
- if (dev_priv->status_gfx_addr != 0)
- I915_WRITE(0x02080, dev_priv->status_gfx_addr);
- else
- I915_WRITE(0x02080, dev_priv->dma_status_page);
- DRM_DEBUG("Enabled hardware status page\n");
-
- return 0;
-}
-
-static int i915_dma_init(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- drm_i915_init_t *init = data;
- int retcode = 0;
-
- switch (init->func) {
- case I915_INIT_DMA:
- retcode = i915_initialize(dev, 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(struct drm_device * dev, int __user * buffer, int dwords)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- int i;
- RING_LOCALS;
-
- if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
- return -EINVAL;
-
- BEGIN_LP_RING((dwords+1)&~1);
-
- for (i = 0; i < dwords;) {
- int cmd, sz;
-
- if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
- return -EINVAL;
-
- if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
- return -EINVAL;
-
- OUT_RING(cmd);
-
- while (++i, --sz) {
- if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i],
- sizeof(cmd))) {
- return -EINVAL;
- }
- OUT_RING(cmd);
- }
- }
-
- if (dwords & 1)
- OUT_RING(0);
-
- ADVANCE_LP_RING();
-
- return 0;
-}
-
-static int i915_emit_box(struct drm_device * dev,
- struct drm_clip_rect __user * boxes,
- int i, int DR1, int DR4)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct drm_clip_rect 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 -EINVAL;
- }
-
- if (IS_I965G(dev)) {
- BEGIN_LP_RING(4);
- OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
- OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
- OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
- OUT_RING(DR4);
- ADVANCE_LP_RING();
- } else {
- 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;
-}
-
-/* XXX: Emitting the counter should really be moved to part of the IRQ
- * emit. For now, do it in both places:
- */
-
-static void i915_emit_breadcrumb(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- RING_LOCALS;
-
- dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
-
- if (dev_priv->counter > 0x7FFFFFFFUL)
- dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
-
- BEGIN_LP_RING(4);
- OUT_RING(CMD_STORE_DWORD_IDX);
- OUT_RING(20);
- OUT_RING(dev_priv->counter);
- OUT_RING(0);
- ADVANCE_LP_RING();
-}
-
-static int i915_dispatch_cmdbuffer(struct drm_device * dev,
- drm_i915_cmdbuffer_t * cmd)
-{
- int nbox = cmd->num_cliprects;
- int i = 0, count, ret;
-
- if (cmd->sz & 0x3) {
- DRM_ERROR("alignment");
- return -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;
- }
-
- i915_emit_breadcrumb(dev);
- return 0;
-}
-
-static int i915_dispatch_batchbuffer(struct drm_device * dev,
- drm_i915_batchbuffer_t * batch)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- struct drm_clip_rect __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 -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);
- if (IS_I965G(dev)) {
- OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
- OUT_RING(batch->start);
- } else {
- 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();
- }
- }
-
- i915_emit_breadcrumb(dev);
-
- return 0;
-}
-
-static int i915_dispatch_flip(struct drm_device * 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(struct drm_device * 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, __func__);
-}
-
-static int i915_flush_ioctl(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- LOCK_TEST_WITH_RETURN(dev, file_priv);
-
- return i915_quiescent(dev);
-}
-
-static int i915_batchbuffer(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- 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 = data;
- int ret;
-
- if (!dev_priv->allow_batchbuffer) {
- DRM_ERROR("Batchbuffer ioctl disabled\n");
- return -EINVAL;
- }
-
- DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
- batch->start, batch->used, batch->num_cliprects);
-
- LOCK_TEST_WITH_RETURN(dev, file_priv);
-
- if (batch->num_cliprects && DRM_VERIFYAREA_READ(batch->cliprects,
- batch->num_cliprects *
- sizeof(struct drm_clip_rect)))
- return -EFAULT;
-
- ret = i915_dispatch_batchbuffer(dev, batch);
-
- sarea_priv->last_dispatch = (int)hw_status[5];
- return ret;
-}
-
-static int i915_cmdbuffer(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- 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 = data;
- int ret;
-
- DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
- cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
-
- LOCK_TEST_WITH_RETURN(dev, file_priv);
-
- if (cmdbuf->num_cliprects &&
- DRM_VERIFYAREA_READ(cmdbuf->cliprects,
- cmdbuf->num_cliprects *
- sizeof(struct drm_clip_rect))) {
- DRM_ERROR("Fault accessing cliprects\n");
- return -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;
-}
-
-static int i915_flip_bufs(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- DRM_DEBUG("%s\n", __FUNCTION__);
-
- LOCK_TEST_WITH_RETURN(dev, file_priv);
-
- return i915_dispatch_flip(dev);
-}
-
-static int i915_getparam(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_getparam_t *param = data;
- int value;
-
- if (!dev_priv) {
- DRM_ERROR("called with no initialization\n");
- return -EINVAL;
- }
-
- 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;
- case I915_PARAM_LAST_DISPATCH:
- value = READ_BREADCRUMB(dev_priv);
- break;
- default:
- DRM_ERROR("Unknown parameter %d\n", param->param);
- return -EINVAL;
- }
-
- if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
- DRM_ERROR("DRM_COPY_TO_USER failed\n");
- return -EFAULT;
- }
-
- return 0;
-}
-
-static int i915_setparam(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_setparam_t *param = data;
-
- if (!dev_priv) {
- DRM_ERROR("called with no initialization\n");
- return -EINVAL;
- }
-
- switch (param->param) {
- case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
- if (!IS_I965G(dev))
- 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 -EINVAL;
- }
-
- return 0;
-}
-
-static int i915_set_status_page(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- drm_i915_hws_addr_t *hws = data;
-
- if (!I915_NEED_GFX_HWS(dev))
- return -EINVAL;
-
- if (!dev_priv) {
- DRM_ERROR("called with no initialization\n");
- return -EINVAL;
- }
-
- printk(KERN_DEBUG "set status page addr 0x%08x\n", (u32)hws->addr);
-
- dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
-
- dev_priv->hws_map.offset = dev->agp->base + hws->addr;
- dev_priv->hws_map.size = 4*1024;
- dev_priv->hws_map.type = 0;
- dev_priv->hws_map.flags = 0;
- dev_priv->hws_map.mtrr = 0;
-
- drm_core_ioremap(&dev_priv->hws_map, dev);
- if (dev_priv->hws_map.handle == NULL) {
- i915_dma_cleanup(dev);
- dev_priv->status_gfx_addr = 0;
- DRM_ERROR("can not ioremap virtual address for"
- " G33 hw status page\n");
- return -ENOMEM;
- }
- dev_priv->hw_status_page = dev_priv->hws_map.handle;
-
- memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
- I915_WRITE(0x02080, dev_priv->status_gfx_addr);
- DRM_DEBUG("load hws 0x2080 with gfx mem 0x%x\n",
- dev_priv->status_gfx_addr);
- DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page);
- return 0;
-}
-
-int i915_driver_load(struct drm_device *dev, unsigned long flags)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned long base, size;
- int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
-
- /* i915 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;
-
- dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER);
- if (dev_priv == NULL)
- return -ENOMEM;
-
- memset(dev_priv, 0, sizeof(drm_i915_private_t));
-
- dev->dev_private = (void *)dev_priv;
-
- /* Add register map (needed for suspend/resume) */
- base = drm_get_resource_start(dev, mmio_bar);
- size = drm_get_resource_len(dev, mmio_bar);
-
- ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
- _DRM_KERNEL | _DRM_DRIVER,
- &dev_priv->mmio_map);
- return ret;
-}
-
-int i915_driver_unload(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- if (dev_priv->mmio_map)
- drm_rmmap(dev, dev_priv->mmio_map);
-
- drm_free(dev->dev_private, sizeof(drm_i915_private_t),
- DRM_MEM_DRIVER);
-
- return 0;
-}
-
-void i915_driver_lastclose(struct drm_device * dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
-
- if (!dev_priv)
- return;
-
- if (dev_priv->agp_heap)
- i915_mem_takedown(&(dev_priv->agp_heap));
-
- i915_dma_cleanup(dev);
-}
-
-void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- i915_mem_release(dev, file_priv, dev_priv->agp_heap);
-}
-
-struct drm_ioctl_desc i915_ioctls[] = {
- DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_FLIP, i915_flip_bufs, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_GETPARAM, i915_getparam, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I915_ALLOC, i915_mem_alloc, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_FREE, i915_mem_free, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_INIT_HEAP, i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
- DRM_IOCTL_DEF(DRM_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP, i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
- DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE, i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
- DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH ),
- DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH),
-};
-
-int i915_max_ioctl = DRM_ARRAY_SIZE(i915_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 i9x5 is AGP.
- */
-int i915_driver_device_is_agp(struct drm_device * dev)
-{
- return 1;
-}
OpenPOWER on IntegriCloud