| TODO: |
| - checkpatch.pl cleanups |
| - sparse fixes |
| - rename files to be not so "generic" |
| - add proper arch dependencies as needed |
| - audit userspace interfaces to make sure they are sane |
| |
| |
| ion/ |
| - Remove ION_IOC_SYNC: Flushing for devices should be purely a kernel internal |
| interface on top of dma-buf. flush_for_device needs to be added to dma-buf |
| first. |
| - Remove ION_IOC_CUSTOM: Atm used for cache flushing for cpu access in some |
| vendor trees. Should be replaced with an ioctl on the dma-buf to expose the |
| begin/end_cpu_access hooks to userspace. |
| - Clarify the tricks ion plays with explicitly managing coherency behind the |
| dma api's back (this is absolutely needed for high-perf gpu drivers): Add an |
| explicit coherency management mode to flush_for_device to be used by drivers |
| which want to manage caches themselves and which indicates whether cpu caches |
| need flushing. |
| - With those removed there's probably no use for ION_IOC_IMPORT anymore either |
| since ion would just be the central allocator for shared buffers. |
| - Add dt-binding to expose cma regions as ion heaps, with the rule that any |
| such cma regions must already be used by some device for dma. I.e. ion only |
| exposes existing cma regions and doesn't reserve unecessarily memory when |
| booting a system which doesn't use ion. |
| |
| sync framework: |
| - remove CONFIG_SW_SYNC_USER, it is used only for testing/debugging and |
| should not be upstreamed. |
| - port CONFIG_SW_SYNC_USER tests interfaces to use debugfs somehow |
| - port libsync tests to kselftest |
| - clean up and ABI check for security issues |
| - move it to drivers/base/dma-buf |
| |
| Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc: |
| Arve Hjønnevåg <arve@android.com> and Riley Andrews <riandrews@android.com> |
