diff options
Diffstat (limited to 'drivers/staging/android/TODO')
| -rw-r--r-- | drivers/staging/android/TODO | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO index 06954cdf3dba..8f3ac37bfe12 100644 --- a/drivers/staging/android/TODO +++ b/drivers/staging/android/TODO @@ -2,16 +2,28 @@ TODO: - checkpatch.pl cleanups - sparse fixes - rename files to be not so "generic" - - make sure things build as modules properly - add proper arch dependencies as needed - audit userspace interfaces to make sure they are sane - - kuid_t should never be exposed to user space as it is - kernel internal type. Data structure for this kuid_t is: - typedef struct { - uid_t val; - } kuid_t; - - This bug is introduced by Xiong Zhou in the patch bd471258f2e09 - - ("staging: android: logger: use kuid_t instead of uid_t") + + +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. Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc: -Brian Swetland <swetland@google.com> +Arve Hjønnevåg <arve@android.com> and Riley Andrews <riandrews@android.com> |