drm/i915: Eliminate nested get/put pages

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By using read_cache_page() for individual pages during pwrite/pread we
can eliminate an unnecessary large allocation (and immediate free) of
obj->pages. Also this eliminates any potential nesting of get/put pages,
simplifying the code and preparing the path for greater things.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

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Chris Wilson 2010-10-28 13:45:36 +01:00

parent 39a01d1fb6

commit e5281ccd2e

2 changed files with 163 additions and 204 deletions

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9

drivers/gpu/drm/i915/i915_drv.h

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356

drivers/gpu/drm/i915/i915_gem.c

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