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cf6e7bac63
This commit adds support for waiting on or signaling DRM syncobjs as part of execbuf. It does so by hijacking the currently unused cliprects pointer to instead point to an array of i915_gem_exec_fence structs which containe a DRM syncobj and a flags parameter which specifies whether to wait on it or to signal it. This implementation theoretically allows for both flags to be set in which case it waits on the dma_fence that was in the syncobj and then immediately replaces it with the dma_fence from the current execbuf. v2: - Rebase on new syncobj API v3: - Pull everything out into helpers - Do all allocation in gem_execbuffer2 - Pack the flags in the bottom 2 bits of the drm_syncobj* v4: - Prevent a potential race on syncobj->fence Testcase: igt/gem_exec_fence/syncobj* Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Link: https://patchwork.freedesktop.org/patch/msgid/1499289202-25441-1-git-send-email-jason.ekstrand@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20170815145733.4562-1-chris@chris-wilson.co.uk |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.