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# SPDX-License-Identifier: GPL-2.0-only
#
# clang-format configuration file. Intended for clang-format >= 7.
#
# For more information, see:
#
#   Documentation/process/clang-format.rst
#   https://clang.llvm.org/docs/ClangFormat.html
#   https://clang.llvm.org/docs/ClangFormatStyleOptions.html
#
---
Language: Cpp
AccessModifierOffset: -8
AlignAfterOpenBracket: Align
AlignConsecutiveAssignments: false
AlignConsecutiveDeclarations: false
AlignEscapedNewlines: Right
AlignOperands: true
AlignTrailingComments: false
AllowAllParametersOfDeclarationOnNextLine: false
AllowShortBlocksOnASingleLine: false
AllowShortCaseLabelsOnASingleLine: false
AllowShortFunctionsOnASingleLine: InlineOnly
AllowShortIfStatementsOnASingleLine: false
AllowShortLoopsOnASingleLine: false
AlwaysBreakAfterDefinitionReturnType: None
AlwaysBreakAfterReturnType: None
AlwaysBreakBeforeMultilineStrings: false
AlwaysBreakTemplateDeclarations: MultiLine
BinPackArguments: true
BinPackParameters: true
BraceWrapping:
  AfterClass: true
  AfterControlStatement: false
  AfterEnum: false
  AfterFunction: true
  AfterNamespace: false
  AfterObjCDeclaration: false
  AfterStruct: false
  AfterUnion: false
  AfterExternBlock: false
  BeforeCatch: false
  BeforeElse: false
  IndentBraces: false
  SplitEmptyFunction: true
  SplitEmptyRecord: true
  SplitEmptyNamespace: true
BreakBeforeBinaryOperators: None
BreakBeforeBraces: Custom
BreakBeforeInheritanceComma: false
BreakInheritanceList: BeforeColon
BreakBeforeTernaryOperators: true
BreakConstructorInitializers: BeforeColon
BreakAfterJavaFieldAnnotations: false
BreakStringLiterals: false
ColumnLimit: 0
CommentPragmas: '^ IWYU pragma:'
CompactNamespaces: false
ConstructorInitializerAllOnOneLineOrOnePerLine: false
ConstructorInitializerIndentWidth: 8
ContinuationIndentWidth: 8
Cpp11BracedListStyle: false
DerivePointerAlignment: false
DisableFormat: false
ExperimentalAutoDetectBinPacking: false
FixNamespaceComments: true
ForEachMacros:
  - 'udev_list_entry_foreach'
SortIncludes: true
IncludeBlocks: Regroup
IncludeCategories:
  # Headers matching the name of the component are matched automatically.
  # Priority 1
  # Other library headers (explicit overrides to match before system headers)
  - Regex:           '(<jpeglib.h>|<libudev.h>|<tiffio.h>|<xf86drm.h>|<xf86drmMode.h>|<yaml.h>)'
    Priority:        9
  # Qt includes (match before C++ standard library)
  - Regex:           '<Q([A-Za-z0-9\-_])+>'
    Priority:        9
  # Headers in <> with an extension. (+system libraries)
  - Regex:           '<([A-Za-z0-9\-_])+\.h>'
    Priority:        2
  # System headers 
  - Regex:           '<sys/.*>'
    Priority:        2
  # C++ standard library includes (no extension)
  - Regex:           '<([A-Za-z0-9\-_/])+>'
    Priority:        2
  # Linux headers, as a second group/subset of system headers
  - Regex:           '<linux/.*>'
    Priority:        3
  # Headers for libcamera Base support
  - Regex:           '<libcamera/base/private.h>'
    Priority:        4
  - Regex:           '<libcamera/base/.*\.h>'
    Priority:        5
  # Public API Headers for libcamera, which are not in a subdir (i.e. ipa/,internal/)
  - Regex:           '<libcamera/([A-Za-z0-9\-_])+.h>'
    Priority:        6
  # IPA Interfaces
  - Regex:           '<libcamera/ipa/.*\.h>'
    Priority:        7
  # libcamera Internal headers in ""  
  - Regex:           '"libcamera/internal/.*\.h"'
    Priority:        8
  # Other libraries headers with one group per library (.h or .hpp)
  - Regex:           '<.*/.*\.hp*>'
    Priority:        9
  # local modular includes "path/file.h" (.h or .hpp)
  - Regex:           '"(.*/)+.*\.hp*"'
    Priority:        10
  # Other local headers "file.h" with extension (.h or .hpp)
  - Regex:           '".*.hp*"'
    Priority:        11
  # Any unmatched line, separated from the last group
  - Regex:	     '"*"'
    Priority:        100

IncludeIsMainRegex: '(_test)?$'
IndentCaseLabels: false
IndentPPDirectives: None
IndentWidth: 8
IndentWrappedFunctionNames: false
JavaScriptQuotes: Leave
JavaScriptWrapImports: true
KeepEmptyLinesAtTheStartOfBlocks: false
MacroBlockBegin: ''
MacroBlockEnd: ''
MaxEmptyLinesToKeep: 1
NamespaceIndentation: None
ObjCBinPackProtocolList: Auto
ObjCBlockIndentWidth: 8
ObjCSpaceAfterProperty: true
ObjCSpaceBeforeProtocolList: true

# Taken from git's rules
PenaltyBreakAssignment: 10
PenaltyBreakBeforeFirstCallParameter: 30
PenaltyBreakComment: 10
PenaltyBreakFirstLessLess: 0
PenaltyBreakString: 10
PenaltyBreakTemplateDeclaration: 10
PenaltyExcessCharacter: 100
PenaltyReturnTypeOnItsOwnLine: 60

PointerAlignment: Right
ReflowComments: false
SortIncludes: true
SortUsingDeclarations: true
SpaceAfterCStyleCast: false
SpaceAfterTemplateKeyword: false
SpaceBeforeAssignmentOperators: true
SpaceBeforeCpp11BracedList: false
SpaceBeforeCtorInitializerColon: true
SpaceBeforeInheritanceColon: true
SpaceBeforeParens: ControlStatements
SpaceBeforeRangeBasedForLoopColon: true
SpaceInEmptyParentheses: false
SpacesBeforeTrailingComments: 1
SpacesInAngles: false
SpacesInContainerLiterals: false
SpacesInCStyleCastParentheses: false
SpacesInParentheses: false
SpacesInSquareBrackets: false
Standard: Cpp11
TabWidth: 8
UseTab: Always
...
generated by cgit v1.2.1 (git 2.18.0) at 2025-05-25 22:23:55 +0000
span> #define DMA_BUF_SYNC_RW (DMA_BUF_SYNC_READ | DMA_BUF_SYNC_WRITE) #define DMA_BUF_SYNC_START (0 << 2) #define DMA_BUF_SYNC_END (1 << 2) #define DMA_BUF_SYNC_VALID_FLAGS_MASK \ (DMA_BUF_SYNC_RW | DMA_BUF_SYNC_END) #define DMA_BUF_NAME_LEN 32 /** * struct dma_buf_export_sync_file - Get a sync_file from a dma-buf * * Userspace can perform a DMA_BUF_IOCTL_EXPORT_SYNC_FILE to retrieve the * current set of fences on a dma-buf file descriptor as a sync_file. CPU * waits via poll() or other driver-specific mechanisms typically wait on * whatever fences are on the dma-buf at the time the wait begins. This * is similar except that it takes a snapshot of the current fences on the * dma-buf for waiting later instead of waiting immediately. This is * useful for modern graphics APIs such as Vulkan which assume an explicit * synchronization model but still need to inter-operate with dma-buf. * * The intended usage pattern is the following: * * 1. Export a sync_file with flags corresponding to the expected GPU usage * via DMA_BUF_IOCTL_EXPORT_SYNC_FILE. * * 2. Submit rendering work which uses the dma-buf. The work should wait on * the exported sync file before rendering and produce another sync_file * when complete. * * 3. Import the rendering-complete sync_file into the dma-buf with flags * corresponding to the GPU usage via DMA_BUF_IOCTL_IMPORT_SYNC_FILE. * * Unlike doing implicit synchronization via a GPU kernel driver's exec ioctl, * the above is not a single atomic operation. If userspace wants to ensure * ordering via these fences, it is the respnosibility of userspace to use * locks or other mechanisms to ensure that no other context adds fences or * submits work between steps 1 and 3 above. */ struct dma_buf_export_sync_file { /** * @flags: Read/write flags * * Must be DMA_BUF_SYNC_READ, DMA_BUF_SYNC_WRITE, or both. * * If DMA_BUF_SYNC_READ is set and DMA_BUF_SYNC_WRITE is not set, * the returned sync file waits on any writers of the dma-buf to * complete. Waiting on the returned sync file is equivalent to * poll() with POLLIN. * * If DMA_BUF_SYNC_WRITE is set, the returned sync file waits on * any users of the dma-buf (read or write) to complete. Waiting * on the returned sync file is equivalent to poll() with POLLOUT. * If both DMA_BUF_SYNC_WRITE and DMA_BUF_SYNC_READ are set, this * is equivalent to just DMA_BUF_SYNC_WRITE. */ __u32 flags; /** @fd: Returned sync file descriptor */ __s32 fd; }; /** * struct dma_buf_import_sync_file - Insert a sync_file into a dma-buf * * Userspace can perform a DMA_BUF_IOCTL_IMPORT_SYNC_FILE to insert a * sync_file into a dma-buf for the purposes of implicit synchronization * with other dma-buf consumers. This allows clients using explicitly * synchronized APIs such as Vulkan to inter-op with dma-buf consumers * which expect implicit synchronization such as OpenGL or most media * drivers/video. */ struct dma_buf_import_sync_file { /** * @flags: Read/write flags * * Must be DMA_BUF_SYNC_READ, DMA_BUF_SYNC_WRITE, or both. * * If DMA_BUF_SYNC_READ is set and DMA_BUF_SYNC_WRITE is not set, * this inserts the sync_file as a read-only fence. Any subsequent * implicitly synchronized writes to this dma-buf will wait on this * fence but reads will not. * * If DMA_BUF_SYNC_WRITE is set, this inserts the sync_file as a * write fence. All subsequent implicitly synchronized access to * this dma-buf will wait on this fence. */ __u32 flags; /** @fd: Sync file descriptor */ __s32 fd; }; #define DMA_BUF_BASE 'b' #define DMA_BUF_IOCTL_SYNC _IOW(DMA_BUF_BASE, 0, struct dma_buf_sync) /* 32/64bitness of this uapi was botched in android, there's no difference * between them in actual uapi, they're just different numbers. */ #define DMA_BUF_SET_NAME _IOW(DMA_BUF_BASE, 1, const char *) #define DMA_BUF_SET_NAME_A _IOW(DMA_BUF_BASE, 1, __u32) #define DMA_BUF_SET_NAME_B _IOW(DMA_BUF_BASE, 1, __u64) #define DMA_BUF_IOCTL_EXPORT_SYNC_FILE _IOWR(DMA_BUF_BASE, 2, struct dma_buf_export_sync_file) #define DMA_BUF_IOCTL_IMPORT_SYNC_FILE _IOW(DMA_BUF_BASE, 3, struct dma_buf_import_sync_file) #endif
generated by cgit v1.2.1 (git 2.18.0) at 2025-05-25 22:23:55 +0000