Added new atomic functions, renamed some old ones. Some #defines have
been added for backward compatibility.
Merged the pre- and post-ARMv6 implementations into a single file.
Renamed the semi-private __android_membar_full_smp to USE_SCREAMING_CAPS
since that's more appropriate for a macro.
Added lots of comments.
Note Mac OS X primitives have not been tested.
Change-Id: If827260750aeb61ad5c2b760e30658e29dbb26f2
The kernel panic seems to be related to the driver trying to allocate
too many pages from the IO mapper. That may be caused by the fact
that we try to perform a 100+ MiB transfer in a single IO operation.
This change breaks the transfer down into 1 MiB chunks.
So far after a day of testing, no kernel panics have occurred compared
to 5 in the previous 24 hours!
Change-Id: I8d27a546e0c0bf4fe2f0fc7fcad65a88d3e6bee0
Added atomic-inline.h. Added a platform-specific memory barrier call
there.
Added android_atomic_acquire_cmpxchg() and android_atomic_release_store().
Not tested on Mac OS X or SH.
Added memory barrier calls to linux-x86 atomics. Mac OS X has barrier
functions already. sh isn't really SMP-ready. linux-arm needs work
(to be done in a separate change).
Updated the makefile to make the SMP state visible to the code here.
Note that host binaries are NOT built with SMP enabled; while our hosts
are very likely SMP, it's not worth figuring out e.g. whether it's okay
to use the SSE2 mfence instruction or have to use something else. We
haven't had barriers enabled in host tools before, so there's probably
no need to stat now.
Removed quasiatomic 64-bit calls (now part of Dalvik).
Change-Id: I49e5e6c8abe70f304cdedb9d7b8e6e65f8925815
init now creates files in /dev/bus/usb/ for user access to USB devices.
Files are chmod 660 with group AID_USB.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Merge commit '218faa30d547e549c1efbf9bacf23cc56c8bf481' into kraken
* commit '218faa30d547e549c1efbf9bacf23cc56c8bf481':
More fixes to Binder perf regression from Eclair
Merge commit 'e43c248316d0faa7bdc23de823b068c2aa3520ab' into froyo-plus-aosp
* commit 'e43c248316d0faa7bdc23de823b068c2aa3520ab':
More fixes to Binder perf regression from Eclair
Instead of allocating memory from the (non executable) heap,
allocate memory using mspace and ensure that we use mprotect
to mark it as PROT_EXEC. This allows pixelflinger to
continue to work even when NX protections are enabled.
Testing: Using the ApiDemos market app, verify that
Apidemos -> Graphics -> OpenGL ES -> GLSurfaceView
works when "adb shell setprop debug.egl.hw 0" is set.
Change-Id: Ib569cd2543c6fa25688ee76325a712bc2347450b
Re-use the file descriptor to change the cgroups. There's a fast path
in the kernel for the case where the value's already uncahnged. Also,
this is okay because the kernel ignores the write offset. This is
essentially a ioctl-ish/datagram interface, despite being a fd we're
writing to.
This reduces Dalvik->Dalvik void/void Binder calls on Sapphire from
~1.2 to ~0.8 ms. This is a bit slower than the ~0.7 ms we get
avoiding the write altogether.
strace confirms:
[pid 1557] ioctl(21, 0xc0186201 <unfinished ...>
[pid 1556] <... ioctl resumed> , 0x45399cd0) = 0
[pid 1556] write(22, "1556", 4) = 4
[pid 1556] ioctl(21, 0xc0186201 <unfinished ...>
[pid 1555] <... ioctl resumed> , 0x45299cd0) = 0
[pid 1555] write(22, "1555", 4) = 4
[pid 1555] ioctl(21, 0xc0186201 <unfinished ...>
[pid 1554] <... ioctl resumed> , 0x45199cd0) = 0
[pid 1554] write(22, "1554", 4) = 4
BUG=2660235
Change-Id: Ia9f9e1d5b792eaebc9560f89931faf6df0cf9c0d
Merge commit 'ba9025ce958bf07f843c2301fa60b6a5499f20ca' into kraken
* commit 'ba9025ce958bf07f843c2301fa60b6a5499f20ca':
Optimize set_sched_policy(), which gets called in every binder call.
Merge commit '253e27acb6c9e3e0b03c59f25cdf9ecbd64bcdad' into froyo-plus-aosp
* commit '253e27acb6c9e3e0b03c59f25cdf9ecbd64bcdad':
Optimize set_sched_policy(), which gets called in every binder call.
- use static /dev/cpuctl filenames, rather than sprintf() on the fly
- use a custom formatter instead of sprintf() for the tid number
This is a simplified version of Dan's original
Ifc9c81f74fe65f0695ead53b30194bc6adf00da0 to be less risky for Froyo.
Bug: 2660235
Change-Id: I744bbc2ec01fd2569612c814a497df40a933b622
Merge commit '44bce0fb572b0513025e4cfd4bf2c58f5ddef2b3' into kraken
* commit '44bce0fb572b0513025e4cfd4bf2c58f5ddef2b3':
cpu-features.h is only available for ARM
The Pixelflinger disassembler does not handle LDM addressing modes correctly,
assuming that the P and U bits in the instruction mean the same in both LDM and
STM. This results in the disassembler producing sequences like:
stmfd r13!, {r4-r11, r14}
...
...
...
ldmea r13!, {r4-r11, r14}
This small patch fixes it by EORing the P and U bits with the Load/Store bit.
Change-Id: Ic7a1556642c4e29415fc3697019f1239b6c26fc2
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