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That wasn't the right way to go about this. And it didn't compile.
This reverts commit d8e4b9ff4dc8bf57e53fa174f977c8fb00ec4e90.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This makes the GEM "info" ioctl produce an object handle which can be used to refer
to the front buffer (i.e. screen pixmap) in Xorg or otherwise. This is unfortunately
necessary since this memory is allocated in the kernel by the framebuffer driver, and
is not available to DRM until we move to KMS.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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The rest_size was treated like the count of words instead of
bytes. This code also switches to memcpy_toio.
Signed-off-by: Andreas Pokorny <andreas.pokorny@gmail.com>
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Removed the isr and everything interrupt related. IRQ is not
needed for basic operation on the glamo cmdq. This code directly
updates the write pointer of the queue without any waits.
Signed-off-by: Andreas Pokorny <andreas.pokorny@gmail.com>
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The code is still not functional, only the first set of commands get
executed.
Signed-off-by: Andreas Pokorny <andreas.pokorny@gmail.com>
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This is the first step towards the irq based update of the write
pointer. With this revision the previous wait, and direct update is
deactivated.
Signed-off-by: Andreas Pokorny <andreas.pokorny@gmail.com>
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This implements the ioctl used for mapping GEM objects into memory.
This needs a unit test in glamo-dri-tests, but for the time being appears to
make X.org less segfaulty.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This patch fixes a linking failure in the Glamo GPIO SPI bitbang support.
Signed-off-by: Rask Ingemann Lambertsen <rask@sygehus.dk>
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This patch fixes some indentation which was off by one and converts
spaces to tabs.
Signed-off-by: Rask Ingemann Lambertsen <rask@sygehus.dk>
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This allows command sequences to make use of buffer objects by providing
their GEM handles.
It also reorganises the code a bit, and adds a lot of missing security stuff.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This fixes things which were broken after the previous commit.
VRAM allocation now appears to work.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This implements the GEM 'create' ioctl.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This just creates a new file for the memory management stuff.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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Reinitialise the command queue on resume, so the fun can continue...
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This removes a lot of debugging. We can't afford to splurge out a
page of printk()s on every command submission.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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We must enable the clock divider for the 2D engine in order for
anything interesting to happen. Well, duh.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This just moves the engine enabling calls around a bit.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This adds [glamo-drm] before the debugging messages.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This still doesn't quite work...
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This implements resetting of the command queue engine.
Hint: Do this before trying to read registers.. :)
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This is just brought across from xf86-video-glamo
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This allows glamo_cmdq_wait() to timeout.
We will probably need to substitute this for something better later on, but for the
time being I wanted to avoid a deadlock if the command queue never cleared.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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Tidy up the code in glamodrm_probe by doing glamodrm->gdrm
Pass 'gdrm' to glamo_cmdq_init, not glamo_core (d'oh!)
Enable the command queue engine at the start
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This fixes the licence text at the top of glamo-cmdq.c, noting that code from
Xorg has been incorporated.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This fixes up the Makefile so that the build actually works.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This adds handling of Glamo's ring buffer at the kernel level, to be accessed
via ioctl DRM_GLAMO_CMDBUF.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This provides the necessary tweak to get our ioctls to be called properly.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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Conflicts:
drivers/mfd/glamo/Kconfig
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Distributions that use Xorg will not need the workaround at
all and now they can disable it.
Updated configurations to enable it by default.
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
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~ Cleanup of a redundant call I introduced before.
~ Removed useless assignation.
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
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To disable the workaround at run-time run:
echo 0 > /sys/class/i2c-adapter/i2c-0/0-0073/pcf50633-regltr.9/glamo3362.0/glamo-fb.0/xglamo_hack
I guess I should add a compile option now to completely disable the workaround but let's call
this an enhancement and let's close the bug now.
By default the workaround is enabled.
Signed-off-by: Nelson Castillo <arhuaco@freaks-unidos.net>
Reported-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
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Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This is the beginnings of the definition of our GEM interface
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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issue""
This reverts commit aa2dbc74bed8cf60e591c654ba1882011b9a8ece.
Reverting the revert. Sorry for the noise.
Check:
http://lists.openmoko.org/pipermail/openmoko-kernel/2009-April/010023.html
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This reverts commit bd4b7e8e84ab43a13a4620b001d52d373c2122b3 which brought
WSOD back for some devices.
It was reported that the problem does not happen with Qi and it
seem it is good news. See:
https://docs.openmoko.org/trac/ticket/2274
Conflicts:
drivers/video/display/jbt6k74.c
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Changing dev_info => dev_dbg.
Signed-off-by: Tim Niemeyer <tim.niemeyer@mastersword.de>
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Space transition between sleep-in and sleep-out of at least
120 ms as mentionned in the spec. Also, made sure the LCM
is moved into sleep state before the pixel clock is turned off.
To do so, I've modified glamo-fb to send FB_BLANK_POWERDOWN before
turning off the pixel clock. Also fixed various violation of coding
style. This patch should reduce the risk of white screen.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@gmail.com>
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This adds some MMIO initialisation stuff to glamo-drm.c.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This fixes the MMC buffer locations in glamo-mci.c, which were broken by the
reorganisation of Glamo's memory.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This adds a missing statement to let glamo-drm.c know the core Glamo handle, so
it can manipulate registers such as the 2D and 3D clocks.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This just cosmetically tidies up the declarations in glamo-core.h. We have to
be very clear about what lives where in the memory.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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This patch removes the platform devices corresponding to Glamo's 2D, 3D, JPEG and MPEG
engines. These will later be handled via DRM.
Signed-off-by: Thomas White <taw@bitwiz.org.uk>
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Handle new memory layout.
The "not-needed" memory should not be taken by the framebuffer driver.
Use that for the DRM driver.
Add the cmdq platform device
Set aside 4k for hardware cursor, reject cursors that don't fit.
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