Changes in Kconfig

9455d656 - drm/mgag200: Run DRM default client setup

Tue, 24 Sep 2024 07:12:54 +0000

drm/mgag200: Run DRM default client setupCall drm_client_setup_with_fourcc() to run the kernel's default clientsetup for DRM. Set fbdev_probe in struct drm_driver, so that the clientsetup can start the common fbdev client.v5:- select DRM_CLIENT_SELECTIONv2:- use drm_client_setup_with_fourcc()Signed-off-by: Thomas Zimmermann Cc: Dave Airlie Cc: Thomas Zimmermann Cc: Jocelyn Falempe Reviewed-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-57-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

b593ea94 - drm/mgag200: Add an option to disable Write-Combine

Fri, 17 May 2024 15:09:58 +0000

drm/mgag200: Add an option to disable Write-CombineUnfortunately, the G200 ioburst workaround doesn't work on someservers like Dell poweredge XR11, XR5610, or HPE XL260. In this casecompletely disabling WC is the only option to achieve low-latency.So this adds a new Kconfig option to disable WC mapping of the G200.Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20240517151050.624797-3-jfalempe@redhat.com List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

e7f67d03 - Revert "drm/mgag200: Add a workaround for low-latency"

Fri, 17 May 2024 15:09:57 +0000

Revert "drm/mgag200: Add a workaround for low-latency"This reverts commit bfa4437fd3938ae2e186e7664b2db65bb8775670.This workaround doesn't work reliably on all servers.I'll replace it with an option to disable Write-Combine,which has more impact on performance, but fix the latencyissue on all hardware.Signed-off-by: Jocelyn Falempe Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20240517151050.624797-2-jfalempe@redhat.com List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

bfa4437f - drm/mgag200: Add a workaround for low-latency

Thu, 08 Feb 2024 09:51:10 +0000

drm/mgag200: Add a workaround for low-latencyWe found a regression in v5.10 on real-time server, using thert-kernel and the mgag200 driver. It's some really specializedworkload, with <10us latency expectation on isolated core.After the v5.10, the real time tasks missed their <10us latencywhen something prints on the screen (fbcon or printk)The regression has been bisected to 2 commits:commit 0b34d58b6c32 ("drm/mgag200: Enable caching for SHMEM pages")commit 4862ffaec523 ("drm/mgag200: Move vmap out of commit tail")The first one changed the system memory framebuffer from Write-Combineto the default caching.Before the second commit, the mgag200 driver used to unmap theframebuffer after each frame, which implicitly does a cache flush.Both regressions are fixed by this commit, which restore WC mappingfor the framebuffer in system memory, and add a cache flush.This is only needed on x86_64, for low-latency workload,so the new kconfig DRM_MGAG200_IOBURST_WORKAROUND depends onPREEMPT_RT and X86.For more context, the whole thread can be found here [1]Signed-off-by: Jocelyn Falempe Link: https://lore.kernel.org/dri-devel/20231019135655.313759-1-jfalempe@redhat.com/ # 1Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20240208095125.377908-1-jfalempe@redhat.com List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

000458b5 - drm: Only select I2C_ALGOBIT for drivers that actually need it

Mon, 19 Dec 2022 08:36:27 +0000

drm: Only select I2C_ALGOBIT for drivers that actually need itWhile working on a drm driver that doesn't need the i2c algobit stuff Inoticed that DRM selects this code even though only 8 drivers actually useit. While also only some drivers use i2c, keep the select for I2C for thenext cleanup patch. Still prepare this already by also selecting I2C forthe individual drivers.Signed-off-by: Uwe Kleine-König Reviewed-by: Javier Martinez Canillas Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20221219083627.1401627-1-u.kleine-koenig@pengutronix.de List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

e20dfd27 - drm/mgag200: Add support for G200 desktop cards

Thu, 30 Jul 2020 10:28:44 +0000

drm/mgag200: Add support for G200 desktop cardsThis patch adds support for G200 desktop cards. We can reuse the wholememory and modesetting code. A few PCI and DAC register values have tobe updated accordingly.The most significant change is in the PLL setup. The driver parses thedevice's BIOS to retrieve clock limits and reference clocks. With no BIOSfound, safe defaults are being used.v2: * copy BIOS ROM to system memory and access with regular load/store; resolves potential HW limitations * fix some stray whitespacesSigned-off-by: Thomas Zimmermann Co-developed-by: Egbert Eich Signed-off-by: Egbert Eich Co-developed-by: Takashi Iwai Signed-off-by: Takashi Iwai Reviewed-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20200730102844.10995-9-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

913ec479 - drm/mgag200: Replace VRAM helpers with SHMEM helpers

Fri, 15 May 2020 08:32:33 +0000

drm/mgag200: Replace VRAM helpers with SHMEM helpersThe VRAM helpers managed the framebuffer memory for mgag200. This camewith several problems, as some MGA device require the scanout addressto be located at VRAM offset 0. It's incompatible with the page-flipsemantics of DRM's atomic modesettting. With atomic modesetting, old andnew framebuffers have to be located in VRAM at the same time. So at leastone of them has to reside at a non-0 offset.This patch replaces VRAM helpers with SHMEM helpers. GEM SHMEM buffersreside in system memory, and are shadow-copied into VRAM during pageflips. The shadow copy always starts at VRAM offset 0.v2: * revert dev->pdev changesSigned-off-by: Thomas Zimmermann Tested-by: John Donnelly Acked-by: Emil Velikov Link: https://patchwork.freedesktop.org/patch/msgid/20200515083233.32036-16-tzimmermann@suse.de List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

8896e40c - drm/mgag200: Fix Kconfig indentation

Wed, 20 Nov 2019 13:36:24 +0000

drm/mgag200: Fix Kconfig indentationAdjust indentation from spaces to tab (+optional two spaces) as incoding style with command like: $ sed -e 's/^ /\t/' -i */KconfigSigned-off-by: Krzysztof Kozlowski Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20191120133625.11478-1-krzk@kernel.org List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

4f7f1973 - drm/vram: fix Kconfig

Wed, 04 Sep 2019 05:47:40 +0000

drm/vram: fix Kconfigselect isn't recursive, so we can't turn on DRM_TTM + DRM_TTM_HELPERin config DRM_VRAM_HELPER, we have to select them on the vram usersinstead.Signed-off-by: Gerd Hoffmann Acked-by: Thomas Zimmermann Link: http://patchwork.freedesktop.org/patch/msgid/20190904054740.20817-8-kraxel@redhat.com List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

94668ac7 - drm/mgag200: Convert mgag200 driver to VRAM MM

Wed, 08 May 2019 08:26:25 +0000

drm/mgag200: Convert mgag200 driver to VRAM MMThe data structure |struct drm_vram_mm| and its helpers replace mgag200'sTTM-based memory manager. It's the same implementation; except for the typenames.v4: * don't select DRM_TTM or DRM_VRAM_MM_HELPERv3: * use drm_gem_vram_mm_funcs * convert driver to drm_device-based instancev2: * implement mgag200_mmap() with drm_vram_mm_mmap()Signed-off-by: Thomas Zimmermann Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-16-tzimmermann@suse.deSigned-off-by: Gerd Hoffmann List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

ebb04eb3 - drm/mgag200: Convert mgag200 driver to |struct drm_gem_vram_object|

Wed, 08 May 2019 08:26:24 +0000

drm/mgag200: Convert mgag200 driver to |struct drm_gem_vram_object|The data structure |struct drm_gem_vram_object| and its helpers replace|struct mgag200_bo|. It's the same implementation; except for the typenames.v4: * cleanups from checkpatch.pl * select config option DRM_VRAM_HELPERSigned-off-by: Thomas Zimmermann Link: http://patchwork.freedesktop.org/patch/msgid/20190508082630.15116-15-tzimmermann@suse.deSigned-off-by: Gerd Hoffmann List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

011cda58 - drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"

Sat, 07 Jan 2017 11:39:11 +0000

drm: fix compilations issues introduced by "drm: allow to use mmuless SoC"Removing MMU configuration flag from DRM make few automaticbuild failed when they answer yes to all flags.Add asm/vga.h file on Blackfin architecture to not broke compilation.Signed-off-by: Benjamin Gaignard Fixes: 62a0d98a188c ("drm: allow to use mmuless SoC")Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1483789151-6603-1-git-send-email-benjamin.gaignard@linaro.org List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

198edaf3 - drm/mgag200: make fbdev support really optional

Fri, 15 Jul 2016 12:48:00 +0000

drm/mgag200: make fbdev support really optionalCurrently enabling MGA G200 DRM support automatically pulls infbdev dependency. However this dep is unnecessary sinceDRM core already handles this for us (DRM_FBDEV_EMULATION).Signed-off-by: Tobias Jakobi Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1468586897-32298-5-git-send-email-tjakobi@math.uni-bielefeld.de List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

92b6f89f - drm: Add separate Kconfig option for fbdev helpers

Tue, 08 Oct 2013 15:44:47 +0000

drm: Add separate Kconfig option for fbdev helpersFor drivers which might want to disable fbdev legacy support.Select the new option in all drivers for now, so this shouldn't resultin any change. Drivers need some work anyway to make fbdev supportoptional (if they have it implemented, that is), so the recommendedway to expose this is by adding per-driver options. At least as longas most drivers don't support disabling the fbdev support.v2: Update for new drm drivers msm and rcar-du. Note that Rob's msmdriver can already take advantage of this, which allows us to buildmsm without any fbdev depencies in the kernel!v3: Move the MODULE_* stuff from the fbdev helper file todrm_crtc_helper.c.Cc: David Herrmann Cc: Rob Clark Reviewed-by: Rob Clark Acked-by: Dave Airlie Reviewed-by: Chon Ming Lee Signed-off-by: Daniel Vetter List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

e11847b1 - drivers/gpu/drm/mgag200: remove depends on CONFIG_EXPERIMENTAL

Thu, 17 Jan 2013 02:53:36 +0000

drivers/gpu/drm/mgag200: remove depends on CONFIG_EXPERIMENTALThe CONFIG_EXPERIMENTAL config item has not carried much meaning for awhile now and is almost always enabled by default. As agreed during theLinux kernel summit, remove it from any "depends on" lines in Kconfigs.CC: Dave Airlie Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

64172ccb - drm/kms: fix Kconfig for new drivers.

Sun, 20 May 2012 09:09:25 +0000

drm/kms: fix Kconfig for new drivers.Reported-by: Jiri Slaby Reported-by: Jonathan Nieder Signed-off-by: Dave Airlie List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig

414c4531 - mgag200: initial g200se driver (v2)

Tue, 17 Apr 2012 14:01:25 +0000

mgag200: initial g200se driver (v2)This is a driver for the G200 server engines chips,it doesn't driver any of the Matrix G series desktop cards.It will bind to G200 SE A,B, G200EV, G200WB, G200EH and G200ER cards.Its based on previous work done my Matthew Garrett but remodelledto follow the same style and flow as the AST server driver. It alsoworks along the same lines as the AST server driver wrt memory management.There is no userspace driver planned, xf86-video-modesetting should be used.It also appears these GPUs have no ARGB hw cursors.v2: add missing tagfifo reset + G200 SE memory bw setup pieces.Signed-off-by: Dave Airlie List of files: /linux-6.15/drivers/gpu/drm/mgag200/Kconfig