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The INTx & MSI interrupt decode paths duplicated a fair bit of common functionality. They also strictly handled interrupts in order of INTx then MSI, so if both types of interrupt were to be asserted simultaneously and the MSI interrupt were first in the FIFO then the INTx code would read it & ignore it before the MSI code then had to read it again, wasting the original FIFO read. Unify the INTx & MSI decode in order to reduce that duplication & allow a single FIFO read to be performed for each interrupt regardless of its type. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Bharat Kumar Gogada <bharatku@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Ravikiran Gummaluri <rgummal@xilinx.com>
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.