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If wait_event_interruptible_timeout returns a positive value, it means
the condition evaluated is true. Which means priv->shared->hw_running is false.
And then we will exit the loop.
This patch simplifies the logic to exit the while loop.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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This patch converts the drivers in drivers/video/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexey Charkov <alchark@gmail.com>
Acked-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
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It was pointed out by 'make versioncheck' that some includes of
linux/version.h are not needed in drivers/video/.
This patch removes them.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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Return -EFAULT instead of number of bytes that could not be copied if
copy_from_user() fails.
Also fix a typo in the comments.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This adds a driver for the the 2D graphics accelerator found on PXA3xx
processors. Only resource mapping, interrupt handling and a simple ioctl
handler is done by the kernel part, the rest of the logic is implemented
in DirectFB userspace.
Graphic applications greatly benefit for line drawing, blend, and
rectangle and triangle filling operations.
Benchmarks done on a PXA303 using the df_dok benchmarking tool follow,
where the value in square brackets show the CPU usage during that test.
Without accelerator (benchmarking 256x252 on 480x262 RGB16 (16bit)):
Anti-aliased Text 3.016 secs ( 65.649 KChars/sec) [ 99.6%]
Fill Rectangle 3.021 secs ( 175.107 MPixel/sec) [ 98.0%]
Fill Rectangle (blend) 3.582 secs ( 3.602 MPixel/sec) [ 99.7%]
Fill Rectangles [10] 3.177 secs ( 182.753 MPixel/sec) [ 98.1%]
Fill Rectangles [10] (blend) 18.020 secs ( 3.580 MPixel/sec) [ 98.7%]
Fill Spans 3.019 secs ( 145.306 MPixel/sec) [ 98.0%]
Fill Spans (blend) 3.616 secs ( 3.568 MPixel/sec) [ 99.4%]
Blit 3.074 secs ( 39.874 MPixel/sec) [ 98.0%]
Blit 180 3.020 secs ( 32.042 MPixel/sec) [ 98.0%]
Blit with format conversion 3.005 secs ( 19.321 MPixel/sec) [ 99.6%]
Blit from 32bit (blend) 4.792 secs ( 2.692 MPixel/sec) [ 98.7%]
With accelerator:
Anti-aliased Text 3.056 secs (* 36.518 KChars/sec) [ 21.3%]
Fill Rectangle 3.015 secs (* 115.543 MPixel/sec) [ 8.9%]
Fill Rectangle (blend) 3.180 secs (* 20.286 MPixel/sec) [ 1.8%]
Fill Rectangles [10] 3.251 secs (* 119.062 MPixel/sec) [ 1.2%]
Fill Rectangles [10] (blend) 6.293 secs (* 20.502 MPixel/sec) [ 0.3%]
Fill Spans 3.051 secs (* 97.264 MPixel/sec) [ 35.7%]
Fill Spans (blend) 3.377 secs (* 15.282 MPixel/sec) [ 17.8%]
Blit 3.046 secs (* 27.533 MPixel/sec) [ 2.6%]
Blit 180 3.098 secs (* 27.070 MPixel/sec) [ 2.2%]
Blit with format conversion 3.131 secs (* 39.148 MPixel/sec) [ 2.8%]
Blit from 32bit (blend) 3.346 secs (* 11.568 MPixel/sec) [ 0.8%]
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Tested-by: Sven Neumann <s.neumann@raumfeld.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Denis Oliver Kropp <dok@directfb.org>
Cc: Sven Neumann <s.neumann@raumfeld.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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