diff options
| author | Alek Du <alek.du@intel.com> | 2009-07-14 07:23:29 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-23 06:46:29 -0700 |
| commit | 3807e26d69b9ad3864fe03224ebebc9610d5802e (patch) | |
| tree | 3c85a5cb0686a7e72255c523b963942bbfc60b7f /lib/sha1.c | |
| parent | 403dbd36739e344d2d25f56ebbe342248487bd48 (diff) | |
USB: EHCI: split ehci_qh into hw and sw parts
The ehci_qh structure merged hw and sw together which is not good:
1. More and more items are being added into ehci_qh, the ehci_qh software
part are unnecessary to be allocated in DMA qh_pool.
2. If HCD has local SRAM, the sw part will consume it too, and it won't
bring any benefit.
3. For non-cache-coherence system, the entire ehci_qh is uncachable, actually
we only need the hw part to be uncacheable. Spliting them will let the sw
part to be cacheable.
Signed-off-by: Alek Du <alek.du@intel.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
CC: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/sha1.c')
0 files changed, 0 insertions, 0 deletions