mirror of https://gitee.com/openkylin/linux.git
f4e15af7e2
In the next few patches, we will want to both copy out of the context image and write a valid image into a new context. To be completely safe, we should then couple in our domain tracking to ensure that we don't have any issues with stale data remaining in unwanted cachelines. Historically, we omitted the .write=true from the call to set-gtt-domain in i915_switch_context() in order to avoid a stall between every request as we would want to wait for the previous context write from the gpu. Since then, we limit the set-gtt-domain to only occur when we first bind the vma, so once in use we will never stall, and we are sure to flush the context following a load from swap. Equally we never applied the lessons learnt from ringbuffer submission to execlists; so time to apply the flush of the lrc after load as well. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171110142634.10551-6-chris@chris-wilson.co.uk |
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| fs | ||
| include | ||
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| ipc | ||
| kernel | ||
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| samples | ||
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| Makefile | ||
| README | ||
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.