path: root/drivers/gpu/vga/Kconfig
AgeCommit message (Collapse)AuthorFilesLines
2012-11-30vga: compile fix, disable vga for s390Jan Glauber1-1/+1
Signed-off-by: Jan Glauber <> Signed-off-by: Martin Schwidefsky <>
2012-04-24vga-switcheroo: select VGA arbitration.Dave Airlie1-0/+1
Since Matthew's changes we have to select arbitration. Reported-by: devh on #radeon Signed-off-by: Dave Airlie <>
2011-01-20kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERTDavid Rientjes1-1/+1
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option is used to configure any non-standard kernel with a much larger scope than only small devices. This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes references to the option throughout the kernel. A new CONFIG_EMBEDDED option is added that automatically selects CONFIG_EXPERT when enabled and can be used in the future to isolate options that should only be considered for embedded systems (RISC architectures, SLOB, etc). Calling the option "EXPERT" more accurately represents its intention: only expert users who understand the impact of the configuration changes they are making should enable it. Reviewed-by: Ingo Molnar <> Acked-by: David Woodhouse <> Signed-off-by: David Rientjes <> Cc: Greg KH <> Cc: "David S. Miller" <> Cc: Jens Axboe <> Cc: Arnd Bergmann <> Cc: Robin Holt <> Cc: <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
2010-05-18vga: fix kconfig text typosRandy Dunlap1-3/+3
Fix typos in vga/Kconfig file and use GPU (upper case) consistently. Signed-off-by: Randy Dunlap <> Cc: Signed-off-by: Dave Airlie <>
2010-03-04Merge branch 'drm-linus' of ↵Linus Torvalds1-0/+11
git:// * 'drm-linus' of git:// (151 commits) vga_switcheroo: disable default y by new rules. drm/nouveau: fix *staging* driver build with switcheroo off. drm/radeon: fix typo in Makefile vga_switcheroo: fix build on platforms with no ACPI drm/radeon: Fix printf type warning in 64bit system. drm/radeon/kms: bump the KMS version number for square tiling support. vga_switcheroo: initial implementation (v15) drm/radeon/kms: do not disable audio engine twice Revert "drm/radeon/kms: disable HDMI audio for now on rv710/rv730" drm/radeon/kms: do not preset audio stuff and start timer when not using audio drm/radeon: r100/r200 ums: block ability for userspace app to trash 0 page and beyond drm/ttm: fix function prototype to match implementation drm/radeon: use ALIGN instead of open coding it drm/radeon/kms: initialize set_surface_reg reg for rs600 asic drm/i915: Use a dmi quirk to skip a broken SDVO TV output. drm/i915: enable/disable LVDS port at DPMS time drm/i915: check for multiple write domains in pin_and_relocate drm/i915: clean-up i915_gem_flush_gpu_write_domain drm/i915: reuse i915_gpu_idle helper drm/i915: ensure lru ordering of fence_list ... Fixed trivial conflicts in drivers/gpu/vga/Kconfig
2010-03-03vga_switcheroo: disable default y by new rules.Dave Airlie1-1/+0
Another undocumented rule of kernel folklore, no default y config options anymore, apparantly hinting to distros they might want something isn't preferred anymore. Signed-off-by: Dave Airlie <>
2010-03-01vga_switcheroo: initial implementation (v15)Dave Airlie1-0/+13
Many new laptops now come with 2 gpus, one to be used for low power modes and one for gaming/on-ac applications. These GPUs are typically wired to the laptop panel and VGA ports via a multiplexer unit which is controlled via ACPI methods. 4 combinations of systems typically exist - with 2 ACPI methods. Intel/ATI - Lenovo W500/T500 - use ATPX ACPI method ATI/ATI - some ASUS - use ATPX ACPI Method Intel/Nvidia - - use _DSM ACPI method Nvidia/Nvidia - - use _DSM ACPI method. TODO: This patch adds support for the ATPX method and initial bits for the _DSM methods that need to written by someone with access to the hardware. Add a proper non-debugfs interface - need to get some proper testing first. v2: add power up/down support for both devices on W500 puts i915/radeon into D3 and cuts power to radeon. v3: redo probing methods, no DMI list, drm devices call to register with switcheroo, it tries to find an ATPX method on any device and once there is two devices + ATPX it inits the switcher. v4: ATPX msg handling using buffers - should work on more machines v5: rearchitect after more mjg59 discussion - move ATPX handling to radeon driver. v6: add file headers + initial nouveau bits (to be filled out). v7: merge delayed switcher code. v8: avoid suspend/resume of gpu that is off v9: rearchitect - mjg59 is always right. - move all ATPX code to radeon, should allow simpler DSM also proper ATRM handling v10: add ATRM support for radeon BIOS, add mutex to lock vgasr_priv v11: fix bug in resuming Intel for 2nd time. v12: start fixing up nvidia code blindly. v13: blindly guess at finishing nvidia code v14: remove radeon audio hacks - fix up intel resume more like upstream v15: clean up printks + remove unnecessary igd/dis pointers mount debugfs /sys/kernel/debug/vgaswitcheroo/switch - should exist if ATPX detected + 2 cards. DIS - immediate change to discrete IGD - immediate change to IGD DDIS - delayed change to discrete DIGD - delayed change to IGD ON - turn on not in use OFF - turn off not in use Tested on W500 (Intel/ATI) and T500 (Intel/ATI) Signed-off-by: Dave Airlie <>
2010-02-05vgaarb: Add user selectability of the number of GPUS in a systemMike Travis1-0/+8
Update the VGA Arbiter to allow the user to select the number of GPU's supported in a system. v2: simplify setting of MAX_USER_CARDS, revert back to original default of 16 Signed-off-by: Mike Travis <> LKML-Reference: <> Cc: Thomas Gleixner <> Cc: Robin Holt <> Cc: Jack Steiner <> Cc: Ingo Molnar <> Cc: Jesse Barnes <> Cc: David Airlie <> Signed-off-by: Andrew Morton <> Signed-off-by: H. Peter Anvin <>
2009-09-09PCI/GPU: implement VGA arbitration on LinuxBenjamin Herrenschmidt1-0/+10
Background: Graphic devices are accessed through ranges in I/O or memory space. While most modern devices allow relocation of such ranges, some "Legacy" VGA devices implemented on PCI will typically have the same "hard-decoded" addresses as they did on ISA. For more details see "PCI Bus Binding to IEEE Std 1275-1994 Standard for Boot (Initialization Configuration) Firmware Revision 2.1" Section 7, Legacy Devices. The Resource Access Control (RAC) module inside the X server currently does the task of arbitration when more than one legacy device co-exists on the same machine. But the problem happens when these devices are trying to be accessed by different userspace clients (e.g. two server in parallel). Their address assignments conflict. Therefore an arbitration scheme _outside_ of the X server is needed to control the sharing of these resources. This document introduces the operation of the VGA arbiter implemented for Linux kernel. Signed-off-by: Benjamin Herrenschmidt <> Signed-off-by: Tiago Vignatti <> Signed-off-by: Dave Airlie <> Signed-off-by: Jesse Barnes <>