>From: Ohad Ben-Cohen [mailto:ohad@xxxxxxxxxx] > >This patchset introduces an approach to eliminate the direct calls >to follow_page and to the low level cache APIs. > >The patchset works by caching the page information while memory >is mapped, and then using that information later when needed >instead of calling follow_page. The low level cache API is then replaced >by standard DMA API. > >Changes from v2: > >* Fix rebase error that plagued the v2 series >* Added some debug logs to help analyzing missing mapping issues > >Notes: >1. The global bridge device struct is used by adding an 'extern' > to proc. This issue should be handled in a different patch series > (the struct should not be global. instead, it should be accessible > to the dspbridge code via one of the context objects. This way we > will also be able to transform pr_* prints to dev_* prints). >2. The patchset was tested with testsuite, DMM sample app and varios > MM and recovery scenarios. Many thanks to Ivan Gomez Castellanos > for the help here. Also Many thanks to Felipe Contreras for the > thorough review, comments and testing. > >Thanks, >Ohad. > >--- >If you want, you can also reach me at < ohadb at ti dot com >. > >Ohad Ben-Cohen (7): > DSPBRIDGE: enhance dmm_map_object > DSPBRIDGE: maintain mapping and page info > DSPBRIDGE: do not call follow_page > DSPBRIDGE: do not use low level cache manipulation API > DSPBRIDGE: remove mem_flush_cache > DSPBRIDGE: add dspbridge API to mark end of DMA > DSPBRIDGE: add new PROC_BEGINDMA and PROC_ENDDMA ioctls > > arch/arm/plat-omap/include/dspbridge/drv.h | 32 +- > .../arm/plat-omap/include/dspbridge/dspapi-ioctl.h | 9 + > arch/arm/plat-omap/include/dspbridge/dspapi.h | 2 + > arch/arm/plat-omap/include/dspbridge/dspdefs.h | 3 +- > arch/arm/plat-omap/include/dspbridge/proc.h | 29 ++ > drivers/dsp/bridge/core/io_sm.c | 11 +- > drivers/dsp/bridge/core/tiomap3430.c | 9 +- > drivers/dsp/bridge/pmgr/dspapi.c | 34 ++- > drivers/dsp/bridge/rmgr/drv.c | 33 -- > drivers/dsp/bridge/rmgr/proc.c | 410 ++++++++++++++++---- > 10 files changed, 433 insertions(+), 139 deletions(-) Pushed to dspbridge. - omar -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
