Commit Graph

174 Commits

Author SHA1 Message Date
Arto Merilainen
edeabfcbc1 gpu: host1x: Fix memory access in syncpt request
This patch fixes a bad memory access in syncpoint request code. If
no syncpoints were available, the code accessed unreserved memory
area causing unexpected behaviour.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:54 +02:00
Arto Merilainen
3364cd2890 gpu: host1x: Copy gathers before verification
The firewall verified gather buffers before copying them. This
allowed a malicious application to rewrite the buffer content by
timing the rewrite carefully.

This patch makes the buffer validation occur after copying the
buffers.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:53 +02:00
Terje Bergstrom
afac0e43c6 gpu: host1x: Don't reset firewall between gathers
The firewall was reinitialised for each gather. Because the filter
was reinitialised, it did not track the class over gather boundaries.
This allowed the user application to set host1x class to one class
in one gather and use that class in another gather without firewall
having knowledge about that.

Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:53 +02:00
Arto Merilainen
5060d8ec7c gpu: host1x: Check reloc table before usage
The firewall assumed that the user space always delivers a relocation
table when it is accessing address registers. If userspace did not
deliver a relocation table and tried to access the address registers,
the code performed bad memory accesses.

This patch modifies the firewall to check correctly that the firewall
table is available before accessing it. In addition, check_reloc() is
converted to use boolean return value (true when the reloc is valid,
false when invalid).

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:52 +02:00
Terje Bergstrom
64c173d3a2 gpu: host1x: Check INCR opcode correctly
The firewall code used a wrong loop condition (pointer to a
structure) while checking INCR opcode. This patch fixes the code to
use correct loop condition (number of words remaining).

Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:52 +02:00
Laurent Pinchart
604faa7dcf drm/tegra: Remove DRIVER_BUS_PLATFORM from driver_features
DRIVER_BUS_PLATFORM is not a DRM driver feature flag, it must not be set
in the driver's driver_features field.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:51 +02:00
Thierry Reding
dc618db75d drm/tegra: Fix return value
Return NULL instead of 0 in host1x_bo_lookup().

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22 12:43:51 +02:00
Wei Yongjun
2639f2bf68 drm/tegra: fix error return code in gr2d_submit()
Fix to return -ENOENT in the host1x_bo lookup error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-05-25 12:32:51 +02:00
Wei Yongjun
b6f2056f3b drm/tegra: fix missing unlock on error
Add the missing unlock before return from function host1x_drm_init() and
host1x_drm_exit() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-05-25 12:32:50 +02:00
Thierry Reding
ed683aead1 drm/tegra: Honor pixel-format changes
When using a base mode-set, honor changes in pixel-format since the core
doesn't explicitly check for them as long as they use the same depth.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-05-25 12:32:50 +02:00
Thierry Reding
603f0cc948 drm/tegra: Explicitly set irq_enabled
Since the Tegra DRM driver doesn't use the drm_irq_install() helper, the
irq_enabled flag needs to be set manually in order to make functionality
such as the DRM_IOCTL_WAIT_VBLANK work properly.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-05-25 12:32:49 +02:00
Thierry Reding
2678aeba5f drm/tegra: Don't disable unused planes
When a plane isn't in use it isn't attached to a CRTC and therefore the
DC registers aren't available for programming.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-05-25 12:32:48 +02:00
Wolfram Sang
849d34571f drivers/gpu/host1x/drm: don't check resource with devm_ioremap_resource
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-05-18 11:55:30 +02:00
Stephen Warren
e1041ca416 drm/tegra: don't depend on OF
ARCH_TEGRA always enabled OF, so there's no need for any driver to
depend on it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:40:56 +02:00
Thierry Reding
dbe4d9a799 drm/tegra: Support the XBGR8888 pixelformat
While at it, also include the RGB565 pixelformat in the list of formats
supported by overlays.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
2013-04-22 12:40:05 +02:00
Terje Bergstrom
d43f81cbaf drm/tegra: Add gr2d device
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 <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:40:04 +02:00
Arto Merilainen
de2ba664c3 gpu: host1x: drm: Add memory manager and fb
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 <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:40:04 +02:00
Terje Bergstrom
692e6d7be8 gpu: host1x: Remove second host1x driver
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 <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:39:59 +02:00
Arto Merilainen
c89c0ea63f gpu: host1x: drm: Rename host1x to host1x_drm
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 <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:39:13 +02:00
Terje Bergstrom
4231c6b01a drm/tegra: Move drm to live under host1x
Make drm part of host1x driver.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:39:11 +02:00
Terje Bergstrom
6236451d83 gpu: host1x: Add debug support
Add support for host1x debugging. Adds debugfs entries, and dumps
channel state to UART in case of stuck job.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:32:46 +02:00
Terje Bergstrom
6579324a41 gpu: host1x: Add channel support
Add support for host1x client modules, and host1x channels to submit
work to the clients.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:32:43 +02:00
Terje Bergstrom
7ede0b0bf3 gpu: host1x: Add syncpoint wait and interrupts
Add support for sync point interrupts, and sync point wait. Sync
point wait used interrupts for unblocking wait.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:32:42 +02:00
Terje Bergstrom
7547168743 gpu: host1x: Add host1x driver
Add host1x, the driver for host1x and its client unit 2D. The Tegra
host1x module is the DMA engine for register access to Tegra's
graphics- and multimedia-related modules. The modules served by
host1x are referred to as clients. host1x includes some other
functionality, such as synchronization.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-04-22 12:32:40 +02:00