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Linux kernel source tree
95007efbe6
Currently i915_reset.c mixes calls to intel_uncore, pci and our old style I915_READ mmio interfaces. Cast aside the old implicit macros, and harmonise on using uncore throughout. add/remove: 1/1 grow/shrink: 0/4 up/down: 65/-207 (-142) Function old new delta rmw_register - 65 +65 gen8_reset_engines 945 942 -3 g4x_do_reset 407 376 -31 intel_gpu_reset 545 509 -36 clear_register 63 - -63 i915_clear_error_registers 461 387 -74 A little bit of pointer dancing elimination works wonders. v2: Roll up the helpers into intel_uncore for general use With the helpers gcc was a little more eager to inline: add/remove: 0/1 grow/shrink: 1/3 up/down: 99/-133 (-34) Function old new delta i915_clear_error_registers 461 560 +99 gen8_reset_engines 945 942 -3 g4x_do_reset 407 376 -31 intel_gpu_reset 545 509 -36 clear_register 63 - -63 Total: Before=1544400, After=1544366, chg -0.00% Win some, lose some, gcc is gcc. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190405202419.3093-1-chris@chris-wilson.co.uk |
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.