linux-kernel - Re: [PATCH 11/12] i915: Move i915

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Date:	Sat, 15 Oct 2011 15:49:10 +0200
From:	Daniel Vetter <daniel@...ll.ch>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	Andi Kleen <ak@...ux.intel.com>,
	dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 11/12] i915:  Move i915_read/write out of line

On Thu, Oct 13, 2011 at 04:08:51PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> With the tracing code in there they are far too big to inline.
> 
> .text savings compared to a non force inline kernel:
> 
> i915_restore_display                        4393   12036   +7643
> i915_save_display                           4295   11459   +7164
> i915_handle_error                           2979    6666   +3687
> i915_driver_irq_handler                     2923    5086   +2163
> i915_ringbuffer_info                         458    1661   +1203
> i915_save_vga                                  -    1200   +1200
> i915_driver_irq_uninstall                    453    1624   +1171
> i915_driver_irq_postinstall                  913    2078   +1165
> ironlake_enable_drps                         719    1872   +1153
> i915_restore_vga                               -    1142   +1142
> intel_display_capture_error_state            784    2030   +1246
> intel_init_emon                              719    2016   +1297
> 
> and more ...
> 
> [AK: these are older numbers, with the new SNB forcewake checks
> it will be even worse]
> 
> Cc: keithp@...thp.com
> Signed-off-by: Andi Kleen <ak@...ux.intel.com>

Reviewed-by: Daniel Vetter <daniel.vetter@...ll.ch>
-- 
Daniel Vetter
Mail: daniel@...ll.ch
Mobile: +41 (0)79 365 57 48
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