b5cc6c0387
Daniel writes: - seqno wrap fixes and debug infrastructure from Mika Kuoppala and Chris Wilson - some leftover kill-agp on gen6+ patches from Ben - hotplug improvements from Damien - clear fb when allocated from stolen, avoids dirt on the fbcon (Chris) - Stolen mem support from Chris Wilson, one of the many steps to get to real fastboot support. - Some DDI code cleanups from Paulo. - Some refactorings around lvds and dp code. - some random little bits&pieces * tag 'drm-intel-next-2012-12-21' of git://people.freedesktop.org/~danvet/drm-intel: (93 commits) drm/i915: Return the real error code from intel_set_mode() drm/i915: Make GSM void drm/i915: Move GSM mapping into dev_priv drm/i915: Move even more gtt code to i915_gem_gtt drm/i915: Make next_seqno debugs entry to use i915_gem_set_seqno drm/i915: Introduce i915_gem_set_seqno() drm/i915: Always clear semaphore mboxes on seqno wrap drm/i915: Initialize hardware semaphore state on ring init drm/i915: Introduce ring set_seqno drm/i915: Missed conversion to gtt_pte_t drm/i915: Bug on unsupported swizzled platforms drm/i915: BUG() if fences are used on unsupported platform drm/i915: fixup overlay stolen memory leak drm/i915: clean up PIPECONF bpc #defines drm/i915: add intel_dp_set_signal_levels drm/i915: remove leftover display.update_wm assignment drm/i915: check for the PCH when setting pch_transcoder drm/i915: Clear the stolen fb before enabling drm/i915: Access to snooped system memory through the GTT is incoherent drm/i915: Remove stale comment about intel_dp_detect() ... Conflicts: drivers/gpu/drm/i915/intel_display.c
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* For the very latest on DRI development, please see: *
* http://dri.freedesktop.org/ *
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The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).
The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:
1. The DRM provides synchronized access to the graphics hardware via
the use of an optimized two-tiered lock.
2. The DRM enforces the DRI security policy for access to the graphics
hardware by only allowing authenticated X11 clients access to
restricted regions of memory.
3. The DRM provides a generic DMA engine, complete with multiple
queues and the ability to detect the need for an OpenGL context
switch.
4. The DRM is extensible via the use of small device-specific modules
that rely extensively on the API exported by the DRM module.
Documentation on the DRI is available from:
http://dri.freedesktop.org/wiki/Documentation
http://sourceforge.net/project/showfiles.php?group_id=387
http://dri.sourceforge.net/doc/
For specific information about kernel-level support, see:
The Direct Rendering Manager, Kernel Support for the Direct Rendering
Infrastructure
http://dri.sourceforge.net/doc/drm_low_level.html
Hardware Locking for the Direct Rendering Infrastructure
http://dri.sourceforge.net/doc/hardware_locking_low_level.html
A Security Analysis of the Direct Rendering Infrastructure
http://dri.sourceforge.net/doc/security_low_level.html