linux_dsm_epyc7002

mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-22 19:03:28 +07:00

History

Daniel Vetter b6f69c9a7f drm/i915: rip out edp special case from dp_link_down This has been tons of fun to figure out with git blame. The first notion of this code block goes back to the original cpu edp enabling for ilk in commit `32f9d658ae` Author: Zhenyu Wang <zhenyuw@linux.intel.com> Date: Fri Jul 24 01:00:32 2009 +0800 drm/i915: Add eDP support on IGDNG mobile chip Two things are notable in this commit wrt to the this edp special case: - The IS_eDP check _only_ fires for DP A, i.e. cpu edp ports. - The cpu edp port is disabled at the top of the dp_link_down function. My theory is that these hacks was added to work around the completely different modeset sequence for cpu edp ports compared to pch edp ports. With the cpu edp confusion on ilk (and snb/ivb) now fixed up, this shouldn't be required any more. The really interesting question is how this special cases survived this long in the code. The first step is declaring the pch port D as eDP if it's used for an internal panel: commit `b329530ca7` Author: Adam Jackson <ajax@redhat.com> Date: Fri Jul 16 14:46:28 2010 -0400 drm/i915/dp: Correctly report eDP in the core connector type This commit unfortunately failed to notice that not all edp ports are created equal. Then follow a flurry of refactorings, culminating in a patch from Keith Packard which resulted in the current logic (by making it "correct" for all platforms that have edp): commit `417e822dee` Author: Keith Packard <keithp@keithp.com> Date: Tue Nov 1 19:54:11 2011 -0700 drm/i915: Treat PCH eDP like DP in most places None of these cleanups or refactorings supply any reason why we need this code, they've simply carried it on as-is. Hence presume it might be harmful with the current code and rip it out. We do rewrite the link training bits completely anyway when re-training the link. Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>		2012-09-20 14:23:05 +02:00
..
ast	drm/ast: fix EDID memory leak	2012-08-24 09:37:09 +10:00
cirrus	drm/cirrus: Remove unused validate_sequence	2012-08-24 09:34:46 +10:00
exynos	drm: remove the raw_edid field from struct drm_display_info	2012-08-24 09:37:36 +10:00
gma500	gma500: Remove unused variable	2012-09-13 11:40:05 +10:00
i2c	drm/i2c/ch7006: Convert to dev_pm_ops	2012-08-24 09:56:08 +10:00
i810	drm: kill dma queue support	2012-07-19 22:50:55 -04:00
i915	drm/i915: rip out edp special case from dp_link_down	2012-09-20 14:23:05 +02:00
mga	drm: kill reclaim_buffers callback	2012-07-19 22:50:28 -04:00
mgag200	drm: remove the raw_edid field from struct drm_display_info	2012-08-24 09:37:36 +10:00
nouveau	drm: use %*ph to dump small buffers	2012-09-13 11:28:30 +10:00
r128	drm: kill reclaim_buffers callback	2012-07-19 22:50:28 -04:00
radeon	drm: use %*ph to dump small buffers	2012-09-13 11:28:30 +10:00
savage	drm/savage: clean up reclaim_buffers	2012-07-19 22:50:16 -04:00
shmobile	drm: Renesas SH Mobile DRM driver	2012-09-18 12:28:22 +02:00
sis	drm/sis: fixup sis_mm ioctl structs	2012-07-19 22:51:58 -04:00
tdfx	drm: kill reclaim_buffers callback	2012-07-19 22:50:28 -04:00
ttm	drm: Handle io prot correctly for MIPS.	2012-08-24 09:41:05 +10:00
udl	drm: use %*ph to dump small buffers	2012-09-13 11:28:30 +10:00
via	drm/via: clean up reclaim_buffers	2012-07-19 22:48:28 -04:00
vmwgfx	vmwgfx: remove useless set memory to zero use memset()	2012-09-13 11:34:34 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_auth.c
drm_buffer.c
drm_bufs.c	drm: kill dma queue support	2012-07-19 22:50:55 -04:00
drm_cache.c	drm/i915: Replace the array of pages with a scatterlist	2012-09-20 14:22:57 +02:00
drm_context.c	drm: Unify and fix idr error handling	2012-04-24 09:50:20 +01:00
drm_crtc_helper.c	drm: Don't initialize local ret variable when not needed	2012-05-22 10:32:58 +01:00
drm_crtc.c	drm: Add NV24 and NV42 pixel formats	2012-09-18 12:28:21 +02:00
drm_debugfs.c	drm: kill dma queue support	2012-07-19 22:50:55 -04:00
drm_dma.c	drm: kill dma queue support	2012-07-19 22:50:55 -04:00
drm_dp_i2c_helper.c
drm_drv.c	drm: make buffer management work without DRM_MASTER	2012-09-13 11:19:44 +10:00
drm_edid_load.c	drm/edid: limit printk when facing bad edid	2012-09-17 11:16:40 +10:00
drm_edid_modes.h	drm: consistently name interlaced modes	2012-09-13 11:21:03 +10:00
drm_edid.c	drm/edid: limit printk when facing bad edid	2012-09-17 11:16:40 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c	DRM: Add DRM KMS/FB CMA helper	2012-09-18 12:28:21 +02:00
drm_fb_helper.c	drm/fb helper: don't call drm_helper_connector_dpms directly	2012-09-08 00:51:15 +02:00
drm_fops.c	drm: track dev_mapping in more robust and flexible way	2012-07-25 14:09:30 +10:00
drm_gem_cma_helper.c	DRM: Add DRM GEM CMA helper	2012-09-18 12:28:21 +02:00
drm_gem.c	drm: Add colouring to the range allocator	2012-07-16 05:59:37 +10:00
drm_global.c
drm_hashtab.c
drm_info.c	drm: kill dma queue support	2012-07-19 22:50:55 -04:00
drm_ioc32.c
drm_ioctl.c	drm/prime: expose capability flags for userspace.	2012-05-18 11:12:16 +01:00
drm_irq.c	drm: Add missing static storage class specifier in drm_irq.c file	2012-08-24 10:00:56 +10:00
drm_lock.c	drm: ditch strange DRIVER_DMA_QUEUE only error bail-out	2012-07-19 22:50:47 -04:00
drm_memory.c
drm_mm.c	drm: Add colouring to the range allocator	2012-07-16 05:59:37 +10:00
drm_modes.c	drm: Remove two unused fields from struct drm_display_mode	2012-08-22 09:27:27 +10:00
drm_pci.c	drm/pci: add support for getting the supported link bw.	2012-07-19 22:29:25 -04:00
drm_platform.c
drm_prime.c	drm/prime: add exported buffers to current fprivs imported buffer list (v2)	2012-05-23 10:46:03 +01:00
drm_proc.c	drm: Add missing static storage class specifiers in drm_proc.c file	2012-08-22 09:30:00 +10:00
drm_scatter.c
drm_stub.c	drm: Don't initialize local ret variable when not needed	2012-05-22 10:32:58 +01:00
drm_sysfs.c	drm: fail gracefully when proc isn't setup.	2012-07-16 05:57:03 +10:00
drm_trace_points.c
drm_trace.h
drm_usb.c	drm/usb: fix module license on drm/usb layer.	2012-04-19 09:33:32 +01:00
drm_vm.c	drm: Remove unnecessary test for ARM.	2012-09-13 11:28:39 +10:00
Kconfig	drm: Renesas SH Mobile DRM driver	2012-09-18 12:28:22 +02:00
Makefile	drm: Renesas SH Mobile DRM driver	2012-09-18 12:28:22 +02:00
README.drm

README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

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