From: Pauli Nieminen <suokkos@gmail.com>
To: dri-devel@lists.sourceforge.net
Subject: [PATCH 0/7] drm/ttm: Pool allocator
Date: Wed, 17 Mar 2010 22:49:59 +0200 [thread overview]
Message-ID: <1268859006-18707-1-git-send-email-suokkos@gmail.com> (raw)
When allocating wc/uc pages cache state transition requires cache flush which
is expensive operation. To avoid cache flushes allocation of wc/uc pages should
be done in large groups when only single cache flush is required for whole group
of pages.
In some cases drivers need t oallocate and deallocate many pages in a short time
frame. In this case we can avoid cache flushes if we keep pages in the pool before
actually freeing them later.
arch/x86 was missing set_pages_array_wc and set_memory_array_wc. Patch 6 and 7 add
missing functions and hooks set_pages_array_wc to the pool allocator.
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next reply other threads:[~2010-03-17 20:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-17 20:49 Pauli Nieminen [this message]
2010-03-17 20:50 ` [PATCH 1/7] drm/ttm: add pool wc/uc page allocator Pauli Nieminen
2010-03-17 20:50 ` [PATCH 2/7] drm/ttm: Add debugfs output entry to pool allocator Pauli Nieminen
2010-03-17 20:50 ` [PATCH 3/7] drm/radeon/kms: Add ttm page pool debugfs file Pauli Nieminen
2010-03-17 20:50 ` [PATCH 4/7] drm/nouveau: " Pauli Nieminen
2010-03-17 20:50 ` [PATCH 5/7] drm/ttm: Dynamically scale the allocation sizes of pools Pauli Nieminen
2010-03-17 20:50 ` [PATCH 6/7] arch/x86: Add array variants for setting memory to wc caching Pauli Nieminen
2010-03-17 20:50 ` [PATCH 7/7] drm/ttm: Use set_pages_array_wc instead of set_memory_wc Pauli Nieminen
2010-03-17 23:52 ` [PATCH 6/7] arch/x86: Add array variants for setting memory to wc caching Dave Airlie
2010-03-18 9:41 ` Pauli Nieminen
2010-03-18 19:29 ` Suresh Siddha
2010-03-18 19:18 ` Pauli Nieminen
[not found] ` <4BA36207.1070501@shipmail.org>
2010-03-19 12:41 ` [PATCH 0/7] drm/ttm: Pool allocator Pauli Nieminen
2010-03-19 19:51 ` Thomas Hellström
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