renesas/virt/virtio-spec.git - Virtio specification

Age	Commit message (Collapse)	Author
2013-11-25	virtio: add latex templates from CMIS	mstsirkin
	I imported latex templates from the CMIS specifications and changed s/CMIS/VIRTIO/ everywhere. The result is very close to one produced by exporting from the ODF we were supplied, with the exception of the TOC formatting, where section numbers are in blue instead of black, and major sections don't have dots leading to page numbers. I'm guessing this isn't very important, someone with more latex knowledge can try to figure this out. Generating html doesn't actually work for me. It doesn't work for me for CMIS either, so it's probably just an issue with my local latex setup. I'm not sure we need html output at all. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@103 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652

/************************************************************************** * * Copyright (c) 2007 Tungsten Graphics, Inc., Cedar Park, TX., 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 <thomas-at-tungstengraphics-dot-com> */ #include "drmP.h" #include "via_drm.h" #include "via_drv.h" /* * DRM_FENCE_TYPE_EXE guarantees that all command buffers can be evicted. * DRM_VIA_FENCE_TYPE_ACCEL guarantees that all 2D & 3D rendering is complete. */ static void via_fence_poll(struct drm_device *dev, uint32_t class, uint32_t waiting_types) { drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; uint32_t signaled_flush_types = 0; uint32_t status; if (class != 0) return; if (unlikely(!dev_priv)) return; spin_lock(&dev_priv->fence_lock); if (waiting_types) { /* * Take the idlelock. This guarantees that the next time a client tries * to grab the lock, it will stall until the idlelock is released. This * guarantees that eventually, the GPU engines will be idle, but nothing * else. It cannot be used to protect the hardware. */ if (!dev_priv->have_idlelock) { drm_idlelock_take(&dev->lock); dev_priv->have_idlelock = 1; } /* * Check if AGP command reader is idle. */ if (waiting_types & DRM_FENCE_TYPE_EXE) if (VIA_READ(0x41C) & 0x80000000) signaled_flush_types |= DRM_FENCE_TYPE_EXE; /* * Check VRAM command queue empty and 2D + 3D engines idle. */ if (waiting_types & DRM_VIA_FENCE_TYPE_ACCEL) { status = VIA_READ(VIA_REG_STATUS); if ((status & VIA_VR_QUEUE_BUSY) && !(status & (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY))) signaled_flush_types |= DRM_VIA_FENCE_TYPE_ACCEL; } if (signaled_flush_types) { waiting_types &= ~signaled_flush_types; if (!waiting_types && dev_priv->have_idlelock) { drm_idlelock_release(&dev->lock); dev_priv->have_idlelock = 0; } drm_fence_handler(dev, 0, dev_priv->emit_0_sequence, signaled_flush_types, 0); } } spin_unlock(&dev_priv->fence_lock); return; } /** * Emit a fence sequence. */ static int via_fence_emit_sequence(struct drm_device * dev, uint32_t class, uint32_t flags, uint32_t * sequence, uint32_t * native_type) { drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private; int ret = 0; if (!dev_priv) return -EINVAL; switch(class) { case 0: /* AGP command stream */ /* * The sequence number isn't really used by the hardware yet. */ spin_lock(&dev_priv->fence_lock); *sequence = ++dev_priv->emit_0_sequence; spin_unlock(&dev_priv->fence_lock); /* * When drm_fence_handler() is called with flush type 0x01, and a * sequence number, That means that the EXE flag is expired. * Nothing else. No implicit flushing or other engines idle. */ *native_type = DRM_FENCE_TYPE_EXE; break; default: ret = -EINVAL; break; } return ret; } /** * No irq fence expirations implemented yet. * Although both the HQV engines and PCI dmablit engines signal * idle with an IRQ, we haven't implemented this yet. * This means that the drm fence manager will always poll for engine idle, * unless the caller wanting to wait for a fence object has indicated a lazy wait. */ static int via_fence_has_irq(struct drm_device * dev, uint32_t class, uint32_t flags) { return 0; } struct drm_fence_driver via_fence_driver = { .num_classes = 1, .wrap_diff = (1 << 30), .flush_diff = (1 << 20), .sequence_mask = 0xffffffffU, .has_irq = via_fence_has_irq, .emit = via_fence_emit_sequence, .poll = via_fence_poll, .needed_flush = NULL, .wait = NULL };