From 9b8d71b5eb09857b07409731d3de182751f712a2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 31 Jul 2008 12:54:48 +1000 Subject: TTM: remove API and userspace objects. This removes all the TTM userspace API and all userspace objects. It also removes the drm_bo_lock.c code --- linux-core/i915_fence.c | 273 ------------------------------------------------ 1 file changed, 273 deletions(-) delete mode 100644 linux-core/i915_fence.c (limited to 'linux-core/i915_fence.c') diff --git a/linux-core/i915_fence.c b/linux-core/i915_fence.c deleted file mode 100644 index 436b7e1f..00000000 --- a/linux-core/i915_fence.c +++ /dev/null @@ -1,273 +0,0 @@ -/************************************************************************** - * - * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA - * 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 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 - * THE COPYRIGHT HOLDERS, AUTHORS 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. - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * - **************************************************************************/ -/* - * Authors: Thomas Hellström - */ - -#include "drmP.h" -#include "drm.h" -#include "i915_drm.h" -#include "i915_drv.h" - -/* - * Initiate a sync flush if it's not already pending. - */ - -static inline void i915_initiate_rwflush(struct drm_i915_private *dev_priv, - struct drm_fence_class_manager *fc) -{ - if ((fc->pending_flush & DRM_I915_FENCE_TYPE_RW) && - !dev_priv->flush_pending) { - dev_priv->flush_sequence = (uint32_t) READ_BREADCRUMB(dev_priv); - dev_priv->flush_flags = fc->pending_flush; - dev_priv->saved_flush_status = READ_HWSP(dev_priv, 0); - I915_WRITE(INSTPM, (1 << 5) | (1 << 21)); - dev_priv->flush_pending = 1; - fc->pending_flush &= ~DRM_I915_FENCE_TYPE_RW; - } -} - -static inline void i915_report_rwflush(struct drm_device *dev, - struct drm_i915_private *dev_priv) -{ - if (unlikely(dev_priv->flush_pending)) { - - uint32_t flush_flags; - uint32_t i_status; - uint32_t flush_sequence; - - i_status = READ_HWSP(dev_priv, 0); - if ((i_status & (1 << 12)) != - (dev_priv->saved_flush_status & (1 << 12))) { - flush_flags = dev_priv->flush_flags; - flush_sequence = dev_priv->flush_sequence; - dev_priv->flush_pending = 0; - drm_fence_handler(dev, 0, flush_sequence, - flush_flags, 0); - } - } -} - -static void i915_fence_flush(struct drm_device *dev, - uint32_t fence_class) -{ - struct drm_i915_private *dev_priv = - (struct drm_i915_private *) dev->dev_private; - struct drm_fence_manager *fm = &dev->fm; - struct drm_fence_class_manager *fc = &fm->fence_class[0]; - unsigned long irq_flags; - - if (unlikely(!dev_priv)) - return; - - write_lock_irqsave(&fm->lock, irq_flags); - i915_initiate_rwflush(dev_priv, fc); - write_unlock_irqrestore(&fm->lock, irq_flags); -} - - -static void i915_fence_poll(struct drm_device *dev, uint32_t fence_class, - uint32_t waiting_types) -{ - struct drm_i915_private *dev_priv = (struct drm_i915_private *) dev->dev_private; - struct drm_fence_manager *fm = &dev->fm; - struct drm_fence_class_manager *fc = &fm->fence_class[0]; - uint32_t sequence; - - if (unlikely(!dev_priv)) - return; - - /* - * First, report any executed sync flush: - */ - - i915_report_rwflush(dev, dev_priv); - - /* - * Report A new breadcrumb, and adjust IRQs. - */ - - if (waiting_types & DRM_FENCE_TYPE_EXE) { - - sequence = READ_BREADCRUMB(dev_priv); - drm_fence_handler(dev, 0, sequence, - DRM_FENCE_TYPE_EXE, 0); - - if (dev_priv->fence_irq_on && - !(fc->waiting_types & DRM_FENCE_TYPE_EXE)) { - i915_user_irq_off(dev); - dev_priv->fence_irq_on = 0; - } else if (!dev_priv->fence_irq_on && - (fc->waiting_types & DRM_FENCE_TYPE_EXE)) { - i915_user_irq_on(dev); - dev_priv->fence_irq_on = 1; - } - } - - /* - * There may be new RW flushes pending. Start them. - */ - - i915_initiate_rwflush(dev_priv, fc); - - /* - * And possibly, but unlikely, they finish immediately. - */ - - i915_report_rwflush(dev, dev_priv); - -} - -static int i915_fence_emit_sequence(struct drm_device *dev, uint32_t class, - uint32_t flags, uint32_t *sequence, - uint32_t *native_type) -{ - struct drm_i915_private *dev_priv = (struct drm_i915_private *) dev->dev_private; - if (unlikely(!dev_priv)) - return -EINVAL; - - i915_emit_irq(dev); - *sequence = (uint32_t) dev_priv->counter; - *native_type = DRM_FENCE_TYPE_EXE; - if (flags & DRM_I915_FENCE_FLAG_FLUSHED) - *native_type |= DRM_I915_FENCE_TYPE_RW; - - return 0; -} - -void i915_fence_handler(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = (struct drm_i915_private *) dev->dev_private; - struct drm_fence_manager *fm = &dev->fm; - struct drm_fence_class_manager *fc = &fm->fence_class[0]; - - write_lock(&fm->lock); - if (likely(dev_priv->fence_irq_on)) - i915_fence_poll(dev, 0, fc->waiting_types); - write_unlock(&fm->lock); -} - -/* - * We need a separate wait function since we need to poll for - * sync flushes. - */ - -static int i915_fence_wait(struct drm_fence_object *fence, - int lazy, int interruptible, uint32_t mask) -{ - struct drm_device *dev = fence->dev; - struct drm_i915_private *dev_priv = (struct drm_i915_private *) dev->dev_private; - struct drm_fence_manager *fm = &dev->fm; - struct drm_fence_class_manager *fc = &fm->fence_class[0]; - int ret; - unsigned long _end = jiffies + 3 * DRM_HZ; - - drm_fence_object_flush(fence, mask); - if (likely(interruptible)) - ret = wait_event_interruptible_timeout - (fc->fence_queue, drm_fence_object_signaled(fence, DRM_FENCE_TYPE_EXE), - 3 * DRM_HZ); - else - ret = wait_event_timeout - (fc->fence_queue, drm_fence_object_signaled(fence, DRM_FENCE_TYPE_EXE), - 3 * DRM_HZ); - - if (unlikely(ret == -ERESTARTSYS)) - return -EAGAIN; - - if (unlikely(ret == 0)) - return -EBUSY; - - if (likely(mask == DRM_FENCE_TYPE_EXE || - drm_fence_object_signaled(fence, mask))) - return 0; - - /* - * Remove this code snippet when fixed. HWSTAM doesn't let - * flush info through... - */ - - if (unlikely(dev_priv && !dev_priv->irq_enabled)) { - unsigned long irq_flags; - - DRM_ERROR("X server disabled IRQs before releasing frame buffer.\n"); - msleep(100); - dev_priv->flush_pending = 0; - write_lock_irqsave(&fm->lock, irq_flags); - drm_fence_handler(dev, fence->fence_class, - fence->sequence, fence->type, 0); - write_unlock_irqrestore(&fm->lock, irq_flags); - } - - /* - * Poll for sync flush completion. - */ - - return drm_fence_wait_polling(fence, lazy, interruptible, mask, _end); -} - -static uint32_t i915_fence_needed_flush(struct drm_fence_object *fence) -{ - uint32_t flush_flags = fence->waiting_types & - ~(DRM_FENCE_TYPE_EXE | fence->signaled_types); - - if (likely(flush_flags == 0 || - ((flush_flags & ~fence->native_types) == 0) || - (fence->signaled_types != DRM_FENCE_TYPE_EXE))) - return 0; - else { - struct drm_device *dev = fence->dev; - struct drm_i915_private *dev_priv = (struct drm_i915_private *) dev->dev_private; - struct drm_fence_driver *driver = dev->driver->fence_driver; - - if (unlikely(!dev_priv)) - return 0; - - if (dev_priv->flush_pending) { - uint32_t diff = (dev_priv->flush_sequence - fence->sequence) & - driver->sequence_mask; - - if (diff < driver->wrap_diff) - return 0; - } - } - return flush_flags; -} - -struct drm_fence_driver i915_fence_driver = { - .num_classes = 1, - .wrap_diff = (1U << (BREADCRUMB_BITS - 1)), - .flush_diff = (1U << (BREADCRUMB_BITS - 2)), - .sequence_mask = BREADCRUMB_MASK, - .has_irq = NULL, - .emit = i915_fence_emit_sequence, - .flush = i915_fence_flush, - .poll = i915_fence_poll, - .needed_flush = i915_fence_needed_flush, - .wait = i915_fence_wait, -}; -- cgit v1.2.3