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1af19331a3
Book3S PACA memory allocation is restricted by the RMA limit and also must not take SLB faults when accessed in virtual mode. Currently a fixed 256MB limit is used for this, which is imprecise and sub-optimal. Update the paca allocation limits to use use the ppc64_rma_size for RMA limit, and share the safe_stack_limit() that is currently used for stack allocations that must not take virtual mode faults. The safe_stack_limit() name is changed to ppc64_bolted_size() to match ppc64_rma_size and some comments are updated. We also need to use early_mmu_has_feature() because we are now calling this function prior to the jump label patching that enables mmu_has_feature(). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Change mmu_has_feature() to early_mmu_has_feature()] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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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.