linux-toradex.git/drivers/gpu/host1x, branch v3.10.78

gpu: host1x: handle the correct # of syncpt regs

2014-06-07T20:25:30+00:00

commit 22bbd5d949dc7fdd72a4e78e767fa09d8e54b446 upstream.

BIT_WORD() truncates rather than rounds, so the loops in
syncpt_thresh_isr() and _host1x_intr_disable_all_syncpt_intrs() use <=
rather than < in an attempt to process the correct number of registers
when rounding of the conversion of count of bits to count of words is
necessary. However, when rounding isn't necessary because the value is
already a multiple of the divisor (as is the case for all values of
nb_pts the code actually sees), this causes one too many registers to
be processed.

Solve this by using and explicit DIV_ROUND_UP() call, rather than
BIT_WORD(), and comparing with < rather than <=.

Fixes: 7ede0b0bf3e2 ("gpu: host1x: Add syncpoint wait and interrupts")
Signed-off-by: Stephen Warren 
Acked-By: Terje Bergstrom 
Signed-off-by: Thierry Reding 
Signed-off-by: Greg Kroah-Hartman

drivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource

2013-05-18T09:55:30+00:00

devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang

drm/tegra: don't depend on OF

2013-04-22T10:40:56+00:00

ARCH_TEGRA always enabled OF, so there's no need for any driver to
depend on it.

Signed-off-by: Stephen Warren 
Signed-off-by: Thierry Reding

drm/tegra: Support the XBGR8888 pixelformat

2013-04-22T10:40:05+00:00

While at it, also include the RGB565 pixelformat in the list of formats
supported by overlays.

Signed-off-by: Thierry Reding 
Tested-by: Erik Faye-Lund

drm/tegra: Add gr2d device

2013-04-22T10:40:04+00:00

Add client driver for 2D device, and IOCTLs to pass work to host1x
channel for 2D.

Also adds functions that can be called to access sync points from
DRM.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding

gpu: host1x: drm: Add memory manager and fb

2013-04-22T10:40:04+00:00

This patch introduces a memory manager for tegra drm and moves
existing parts to use it. As cma framebuffer helpers can no more
be used, this patch adds also a separate framebuffer driver for
tegra.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding

gpu: host1x: Remove second host1x driver

2013-04-22T10:39:59+00:00

Remove second host1x driver, and bind tegra-drm to the new host1x
driver. The logic to parse device tree and track clients is moved
to drm.c.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding

gpu: host1x: drm: Rename host1x to host1x_drm

2013-04-22T10:39:13+00:00

Both host1x and drm drivers have host1x structures. This patch
renames the host1x structure under drm to follow name host1x_drm.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding

drm/tegra: Move drm to live under host1x

2013-04-22T10:39:11+00:00

Make drm part of host1x driver.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding

gpu: host1x: Add debug support

2013-04-22T10:32:46+00:00

Add support for host1x debugging. Adds debugfs entries, and dumps
channel state to UART in case of stuck job.

Signed-off-by: Arto Merilainen 
Signed-off-by: Terje Bergstrom 
Reviewed-by: Thierry Reding 
Tested-by: Thierry Reding 
Tested-by: Erik Faye-Lund 
Signed-off-by: Thierry Reding