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authorIngo Molnar <mingo@elte.hu>2009-09-04 08:44:16 -0400
committerIngo Molnar <mingo@elte.hu>2009-09-04 08:44:16 -0400
commit695a461296e5df148c99ac087b9e1cb380f4db15 (patch)
tree951893036fdc0b7bae0e17bc739ac8ffe909781d /include/linux/cb710.h
parentc7084b35eb1a4d3353a501508baf9d3d82822c93 (diff)
parent2b681fafcc50fea6304ed418667c9d04282acb73 (diff)
Merge branch 'amd-iommu/2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into core/iommu
Diffstat (limited to 'include/linux/cb710.h')
-rw-r--r--include/linux/cb710.h29
1 files changed, 3 insertions, 26 deletions
diff --git a/include/linux/cb710.h b/include/linux/cb710.h
index 63bc9a4d2926..8cc10411bab2 100644
--- a/include/linux/cb710.h
+++ b/include/linux/cb710.h
@@ -140,29 +140,6 @@ void cb710_dump_regs(struct cb710_chip *chip, unsigned dump);
140#include <linux/highmem.h> 140#include <linux/highmem.h>
141#include <linux/scatterlist.h> 141#include <linux/scatterlist.h>
142 142
143/**
144 * cb710_sg_miter_stop_writing - stop mapping iteration after writing
145 * @miter: sg mapping iter to be stopped
146 *
147 * Description:
148 * Stops mapping iterator @miter. @miter should have been started
149 * started using sg_miter_start(). A stopped iteration can be
150 * resumed by calling sg_miter_next() on it. This is useful when
151 * resources (kmap) need to be released during iteration.
152 *
153 * This is a convenience wrapper that will be optimized out for arches
154 * that don't need flush_kernel_dcache_page().
155 *
156 * Context:
157 * IRQ disabled if the SG_MITER_ATOMIC is set. Don't care otherwise.
158 */
159static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter)
160{
161 if (miter->page)
162 flush_kernel_dcache_page(miter->page);
163 sg_miter_stop(miter);
164}
165
166/* 143/*
167 * 32-bit PIO mapping sg iterator 144 * 32-bit PIO mapping sg iterator
168 * 145 *
@@ -171,12 +148,12 @@ static inline void cb710_sg_miter_stop_writing(struct sg_mapping_iter *miter)
171 * without DMA support). 148 * without DMA support).
172 * 149 *
173 * Best-case reading (transfer from device): 150 * Best-case reading (transfer from device):
174 * sg_miter_start(); 151 * sg_miter_start(, SG_MITER_TO_SG);
175 * cb710_sg_dwiter_write_from_io(); 152 * cb710_sg_dwiter_write_from_io();
176 * cb710_sg_miter_stop_writing(); 153 * sg_miter_stop();
177 * 154 *
178 * Best-case writing (transfer to device): 155 * Best-case writing (transfer to device):
179 * sg_miter_start(); 156 * sg_miter_start(, SG_MITER_FROM_SG);
180 * cb710_sg_dwiter_read_to_io(); 157 * cb710_sg_dwiter_read_to_io();
181 * sg_miter_stop(); 158 * sg_miter_stop();
182 */ 159 */