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| author | Dai Haruki <dai.haruki@freescale.com> | 2008-12-17 00:34:50 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-17 00:34:50 +0100 |
| commit | 5a5efed4817ef931f648b118aeb9222e53122d2b (patch) | |
| tree | 592f3dbe3bf47035e8738b1c4bbe48fc3be973fc /Makefile | |
| parent | gianfar: Add macros for stepping through BDs (diff) | |
| download | linux-5a5efed4817ef931f648b118aeb9222e53122d2b.tar.xz linux-5a5efed4817ef931f648b118aeb9222e53122d2b.zip | |
gianfar: Make all BD status writes 32-bit
Whenever we want to update the status field in a BD, we usually want to
update the length field, too. By combining them into one 32-bit field, we
reduce the number of stores to memory shared with the controller, and we
eliminate the need for order-enforcement, as the length and "READY" bit are
now updated atomically at the same time.
Signed-off-by: Dai Haruki <Dai.Haruki@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions