Changes in Kbuild

ba6b8479 - drm/nouveau: handle limited nvif ioctl in abi16

Fri, 26 Jul 2024 04:37:59 +0000

drm/nouveau: handle limited nvif ioctl in abi16nouveau_usif.c was already stripped right back a couple of years ago,limiting what userspace could do with it.A follow-on series removes the nvkm side of these interfaces entirely,in order to make it less of a nightmare to add/change internal APIs inthe future.Unfortunately. Userspace uses some of this.Fortunately, userspace only ever ended up using a fraction of the APIs,so those are reimplemened here in a more direct manner, and return-EINVAL to userspace for everything else.v2:- simplified struct nouveau_abi16_obj- added a couple of commentsv3:- comment harderSigned-off-by: Ben Skeggs Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20240726043828.58966-9-bskeggs@nvidia.com List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

b1992c37 - kbuild: use $(src) instead of $(srctree)/$(src) for source directory

Sat, 27 Apr 2024 14:55:02 +0000

kbuild: use $(src) instead of $(srctree)/$(src) for source directoryKbuild conventionally uses $(obj)/ for generated files, and $(src)/ forchecked-in source files. It is merely a convention without any functionaldifference. In fact, $(obj) and $(src) are exactly the same, as definedin scripts/Makefile.build: src := $(obj)When the kernel is built in a separate output directory, $(src) doesnot accurately reflect the source directory location. While Kbuildresolves this discrepancy by specifying VPATH=$(srctree) to search forsource files, it does not cover all cases. For example, when adding aheader search path for local headers, -I$(srctree)/$(src) is typicallypassed to the compiler.This introduces inconsistency between upstream and downstream Makefilesbecause $(src) is used instead of $(srctree)/$(src) for the latter.To address this inconsistency, this commit changes the semantics of$(src) so that it always points to the directory in the source tree.Going forward, the variables used in Makefiles will have the followingmeanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source treeConsequently, $(srctree)/$(src) in upstream Makefiles need to be replacedwith $(src).Signed-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

b88baab8 - drm/nouveau: implement new VM_BIND uAPI

Fri, 04 Aug 2023 18:23:51 +0000

drm/nouveau: implement new VM_BIND uAPIThis commit provides the implementation for the new uapi motivated by theVulkan API. It allows user mode drivers (UMDs) to:1) Initialize a GPU virtual address (VA) space via the new DRM_IOCTL_NOUVEAU_VM_INIT ioctl for UMDs to specify the portion of VA space managed by the kernel and userspace, respectively.2) Allocate and free a VA space region as well as bind and unbind memory to the GPUs VA space via the new DRM_IOCTL_NOUVEAU_VM_BIND ioctl. UMDs can request the named operations to be processed either synchronously or asynchronously. It supports DRM syncobjs (incl. timelines) as synchronization mechanism. The management of the GPU VA mappings is implemented with the DRM GPU VA manager.3) Execute push buffers with the new DRM_IOCTL_NOUVEAU_EXEC ioctl. The execution happens asynchronously. It supports DRM syncobj (incl. timelines) as synchronization mechanism. DRM GEM object locking is handled with drm_exec.Both, DRM_IOCTL_NOUVEAU_VM_BIND and DRM_IOCTL_NOUVEAU_EXEC, use the DRMGPU scheduler for the asynchronous paths.Reviewed-by: Dave Airlie Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20230804182406.5222-12-dakr@redhat.com List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

4a16dd9d - drm/nouveau/kms: switch to drm fbdev helpers

Wed, 01 Jun 2022 10:46:40 +0000

drm/nouveau/kms: switch to drm fbdev helpersThis removes support for accelerated fbcon rendering, and fixes a numberof races/crashes/issues around suspend/resume/module unload etc.Losing HW accelerated rendering isn't ideal, but it's been significantlyreduced in performance since the removal of accelerated scrolling in thekernel anyway - not to mention, can be racey (skips cpu<->gpu sync) fromcertain contexts.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

8b9d5d63 - drm/nouveau/bo: split buffer move functions into their own source files

Mon, 22 Jun 2020 05:37:19 +0000

drm/nouveau/bo: split buffer move functions into their own source filesSigned-off-by: Ben Skeggs Reviewed-by: Lyude Paul List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

bbd540c0 - drm/nouveau: fix out-of-tree module build

Wed, 29 Jan 2020 07:32:22 +0000

drm/nouveau: fix out-of-tree module buildThe $(srctree) addition a while back busted building the out-of-treeversion of the module, and I've been hacking it up ever since.This allows us to work around the issue.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

b0f84a84 - drm/nouveau: fix bogus GPL-2 license header

Fri, 05 Jul 2019 05:11:42 +0000

drm/nouveau: fix bogus GPL-2 license headerThe bulk SPDX addition made all these files into GPL-2.0 licensed files.However the remainder of the project is MIT-licensed, these fileswere simply missing the boiler plate and got caught up in the global update.Fixes: 96ac6d4351004 (treewide: Add SPDX license identifier - Kbuild)Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

96ac6d43 - treewide: Add SPDX license identifier - Kbuild

Thu, 30 May 2019 12:03:44 +0000

treewide: Add SPDX license identifier - KbuildAdd 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-2.0Reported-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman Reviewed-by: Kate Stewart Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

43068cb7 - drm: prefix header search paths with $(srctree)/

Fri, 29 Mar 2019 11:32:41 +0000

drm: prefix header search paths with $(srctree)/Currently, the Kbuild core manipulates header search paths in a crazyway [1].To fix this mess, I want all Makefiles to add explicit $(srctree)/ tothe search paths in the srctree. Some Makefiles are already written inthat way, but not all. The goal of this work is to make the notationconsistent, and finally get rid of the gross hacks.Having whitespaces after -I does not matter since commit 48f6e3cf5bc6("kbuild: do not drop -I without parameter").[1]: https://patchwork.kernel.org/patch/9632347/Signed-off-by: Masahiro Yamada Reviewed-by: Sam Ravnborg Reviewed-by: James Qian Wang (Arm Technology China) Acked-by: Liviu Dudau Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1553859161-2628-1-git-send-email-yamada.masahiro@socionext.com List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

5be73b69 - drm/nouveau/dmem: device memory helpers for SVM

Thu, 26 Jul 2018 21:59:13 +0000

drm/nouveau/dmem: device memory helpers for SVMDevice memory can be use in SVM, in which case we do not have any ofthe existing buffer object. This commit add infrastructure to allowuse of device memory without nouveau_bo. Again this is a temporarysolution until a rework of GPU memory management.Signed-off-by: Jérôme Glisse List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

eeaf06ac - drm/nouveau/svm: initial support for shared virtual memory

Thu, 05 Jul 2018 02:57:12 +0000

drm/nouveau/svm: initial support for shared virtual memoryThis uses HMM to mirror a process' CPU page tables into a channel's pagetables, and keep them synchronised so that both the CPU and GPU are ableto access the same memory at the same virtual address.While this code also supports Volta/Turing, it's only enabled for PascalGPUs currently due to channel recovery being unreliable right now on thelater GPUs.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

30ed49b5 - drm/nouveau/kms/nv50-: move code underneath dispnv50/

Tue, 08 May 2018 10:39:47 +0000

drm/nouveau/kms/nv50-: move code underneath dispnv50/The code is about to be split up, and this matches dispnv04.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

24e8375b - drm/nouveau: separate constant-va tracking from nvkm vma structure

Tue, 31 Oct 2017 17:56:19 +0000

drm/nouveau: separate constant-va tracking from nvkm vma structureSigned-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

9ce523cc - drm/nouveau: separate buffer object backing memory from nvkm structures

Tue, 31 Oct 2017 17:56:19 +0000

drm/nouveau: separate buffer object backing memory from nvkm structuresSigned-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

ae95621b - drm/nouveau: fix include notation and remove -Iinclude/drm flag

Mon, 24 Apr 2017 04:50:29 +0000

drm/nouveau: fix include notation and remove -Iinclude/drm flagInclude instead of relative path from include/drm, thenremove the -Iinclude/drm compiler flag.Signed-off-by: Masahiro Yamada Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-12-git-send-email-yamada.masahiro@socionext.com List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

8d021d71 - drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logo

Thu, 25 Aug 2016 00:57:07 +0000

drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logoWe received a donation of a Titan which has this useless featureallowing users to control the brightness of the LED behind thelogo of NVIDIA. In the true spirit of open source, let's exposethat to the users of very expensive cards!This patch hooks up this LED/PWM to the LED subsystem which allowsblinking it in sync with cpu/disk/network/whatever activity (heartbeatis quite nice!). Users may also implement some breathing effect ormorse code support in the userspace if they feel like it.v2: - surround the use of the LED framework with ifdef CONFIG_LEDS_CLASSv3: - avoid using ifdefs everywhere, follow the recommendations of /doc/Documentation/CodingStyle. Suggested by Emil Velikov.v4 (Ben): - squashed series of fixes from mlSigned-off-by: Martin Peres Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

fcc95ce9 - drm/nouveau/sysfs: remove pstate interface

Thu, 30 Jul 2015 09:56:20 +0000

drm/nouveau/sysfs: remove pstate interfaceSigned-off-by: Karol Herbst Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

340b0e7c - drm/nouveau/pci: merge agp handling from nouveau drm

Thu, 20 Aug 2015 04:54:23 +0000

drm/nouveau/pci: merge agp handling from nouveau drmThis commit reinstates the pre-DEVINIT AGP fiddling that was broken inan earlier commit.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild

c39f472e - drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)

Tue, 13 Jan 2015 12:13:14 +0000

drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)The symlinks were annoying some people, and they're not used anywhereelse in the kernel tree. The include directory structure has beenchanged so that symlinks aren't needed anymore.NVKM has been moved from core/ to nvkm/ to make it more obvious as towhat the directory is for, and as some minor prep for when NVKM getssplit out into its own module (virt) at a later date.Signed-off-by: Ben Skeggs List of files: /linux-6.15/drivers/gpu/drm/nouveau/Kbuild