ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/dca/Makefile

7589670f - DCA: Add Direct Cache Access driver

Tue, 16 Oct 2007 08:27:41 +0000

DCA: Add Direct Cache Access driverDirect Cache Access (DCA) is a method for warming the CPU cache before datais used, with the intent of lessening the impact of cache misses. Thispatch adds a manager and interface for matching up client requests for DCAservices with devices that offer DCA services.In order to use DCA, a module must do bus writes with the appropriate tagbits set to trigger a cache read for a specific CPU. However, differentCPUs and chipsets can require different sets of tag bits, and the methodsfor determining the correct bits may be simple hardcoding or may be ahardware specific magic incantation. This interface is a way for DCAclients to find the correct tag bits for the targeted CPU without needingto know the specifics. [Dave Miller] use DEFINE_SPINLOCK()Signed-off-by: Shannon Nelson Acked-by: David S. Miller Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/drivers/dca/Makefile

Changes in Makefile

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

7589670f - DCA: Add Direct Cache Access driver