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0b29c75a01
Not only the context image consist of two parts (the PPHWSP, and the logical context state), but we also allocate a header at the start of for sharing data with GuC. Thus every lrc looks like this: | [guc] | [hwsp] [logical state] | |<- our header ->|<- context image ->| So far, we have oversimplified whenever we use each of these parts of the context, just because the GuC header happens to be in page 0, and the (PP)HWSP is in page 1. But this had led to using the same define for more than one meaning (as a page index in the lrc and as 1 page). This patch adds defines for the GuC shared page, the PPHWSP page and the start of the logical state. It also updated the places where the old define was being used. Since we are not changing the size (or format) of the context, there are no functional changes. v2: Use PPHWSP index for hws again. Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Michel Thierry <michel.thierry@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Oscar Mateo <oscar.mateo@intel.com> Cc: intel-gvt-dev@lists.freedesktop.org Link: http://patchwork.freedesktop.org/patch/msgid/20170712193032.27080-1-michel.thierry@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/20170913085605.18299-1-chris@chris-wilson.co.uk |
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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.