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5bf02571 |
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18-Sep-2023 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/r535: initial support - Valid VRAM regions are read from GSP-RM, and used to construct our MM - BAR1/BAR2 VMMs modified to be shared with RM - Client VMMs have RM VASPACE objects created for them - Adds FBSR to backup system objects in VRAM across suspend Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-37-skeggsb@gmail.com
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#
6dd123ba |
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03-Dec-2020 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: switch to instanced constructor Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Reviewed-by: Lyude Paul <lyude@redhat.com>
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#
176ada03 |
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16-Dec-2019 |
James Jones <jajones@nvidia.com> |
drm/nouveau/mmu: Add correct turing page kinds Turing introduced a new simplified page kind scheme, reducing the number of possible page kinds from 256 to 16. It also is the first NVIDIA GPU in which the highest possible page kind value is not reserved as an "invalid" page kind. To address this, the invalid page kind is made an explicit property of the MMU HAL, and a new table of page kinds is added to the tu102 MMU HAL. One hardware change not addressed here is that 0x00 is technically no longer a supported page kind, and pitch surfaces are instead intended to share the block-linear generic page kind 0x06. However, because that will be a rather invasive change to nouveau and 0x00 still works fine in practice on Turing hardware, addressing this new behavior is deferred. Signed-off-by: James Jones <jajones@nvidia.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
b7019ac5 |
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19-Jun-2019 |
Ilia Mirkin <imirkin@alum.mit.edu> |
drm/nouveau: fix bogus GPL-2 license header The bulk SPDX addition made all these files into GPL-2.0 licensed files. However the remainder of the project is MIT-licensed, these files (primarily header files) were simply missing the boiler plate and got caught up in the global update. Fixes: b24413180f5 (License cleanup: add SPDX GPL-2.0 license identifier to files with no license) Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Acked-by: Emil Velikov <emil.l.velikov@gmail.com> Acked-by: Karol Herbst <kherbst@redhat.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
2606f291 |
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13-Jun-2018 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: support initialisation of client-managed address-spaces NVKM is currently responsible for managing the allocation of a client's GPU address-space, but there's various use-cases (ie. HMM address-space mirroring) where giving a client more direct control is desirable. This commit allows for a VMM to be created where the area allocated for NVKM is limited to a client-specified window, the remainder of address- space is controlled directly by the client. Leaving a window is necessary to support various internal requirements, but also to support existing allocation interfaces as not all of the HW is capable of working with a HMM allocation. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
b2441318 |
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01-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
632b740c |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: remove old vmm frontend Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
eea5cf0f |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: define user interfaces to mmu Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
eaf1a691 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: add base for type-based memory allocation Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
51645eb7 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: build up information on available memory types Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
26880e76 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: remove support for old backends Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
f9400afb |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/gp100,gp10b: implement new vmm backend Adds support for: - 64KiB/2MiB big page sizes (128KiB not supported by HW with new PT layout). - System-memory PTs. - LPTE "invalid" state. - (Tegra) Use of video memory aperture. - Sparse PDEs/PTEs. - Additional blocklinear kinds. - 49-bit address-space. GP100 supports an entirely new 5-level page table layout that provides an expanded 49-bit address-space. It also supports the layout present on previous generations, which we've been making do with until now. This commit implements support for the new layout, and enables it by default. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
e12cf6ad |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/gm200,gm20b: implement new vmm backend Adds support for: - 64KiB big page size. - System-memory PTs. - LPTE "invalid" state. - (Tegra) Use of video memory aperture. - Sparse PDEs/PTEs. - Additional blocklinear kinds. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
b77791da |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/gf100: implement new vmm backend Adds support for: - 64KiB big page size. - System-memory PTs. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
fd542a3e |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/nv50,g84: implement new vmm backend Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
d30af7ce |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: handle instance block setup We previously required each VMM user to allocate their own page directory and fill in the instance block themselves. It makes more sense to handle this in a common location. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
af3b8d53 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: remove old vm creation hooks Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
9f6219fd |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/nv50,g84: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
03b0ba7b |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/nv44: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
5b17f362 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/nv04: implement vmm on top of new base Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
806a7335 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: implement base for new vm management This is the first chunk of the new VMM code that provides the structures needed to describe a GPU virtual address-space layout, as well as common interfaces to handle VMM creation, and connecting instances to a VMM. The constructor now allocates the PD itself, rather than having the user handle that manually. This won't/can't be used until after all backends have been ported to these interfaces, so a little bit of memory will be wasted on Fermi and newer for a couple of commits in the series. Compatibility has been hacked into the old code to allow each GPU backend to be ported individually. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
f1280394 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: implement page table sub-allocation GP100 "big" (which is a funny name, when it supports "even bigger") page tables are small enough that we want to be able to suballocate them from a larger block of memory. This builds on the previous page table cache interfaces so that the VMM code doesn't need to know the difference. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
9a45ddaa |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: implement page table cache Builds up and maintains a small cache of each page table size in order to reduce the frequency of expensive allocations, particularly in the pathological case where an address range ping-pongs between allocated and free. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
db018585 |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/gk104: fork from gf100 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
0f43715f |
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31-Oct-2017 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu/g84: fork from nv50 Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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#
c9582455 |
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19-Aug-2015 |
Ben Skeggs <bskeggs@redhat.com> |
drm/nouveau/mmu: convert to new-style nvkm_subdev Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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