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7f92e6c2ae
Instead of initializing them to uncached, let's set them to PTE for kernel tracking. While at it do some minor adjustments to comments and coding style. From Chris: "What it does mean is that the buffer contents are consistent with our cache tracking; and for userspace the results were always undefined. So we should at least be able to guarantee that the data written by userspace from the CPU is visible. After that, your caches are on your own". Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tomasz Lis <tomasz.lis@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190124000604.18861-2-lucas.demarchi@intel.com |
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