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path: root/drivers/gpu/host1x
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2013-06-22gpu: host1x: Rework CPU syncpoint incrementArto Merilainen6-32/+15
This patch merges host1x_syncpt_cpu_incr to host1x_syncpt_incr() as they are in practise doing the same thing. host1x_syncpt_incr() is also modified to return error codes. User space interface is modified accordingly to pass return values. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22gpu: host1x: Fix client_managed typeArto Merilainen3-8/+8
client_managed field in syncpoint structure was defined as an integer. The field holds, however, only a boolean value. This patch modifies the type to boolean. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Acked-By: Terje Bergstrom <tbergstrom@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-06-22gpu: host1x: Fix memory access in syncpt requestArto Merilainen1-1/+2
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>
2013-06-22gpu: host1x: Copy gathers before verificationArto Merilainen1-31/+20
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>
2013-06-22gpu: host1x: Don't reset firewall between gathersTerje Bergstrom1-38/+34
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>
2013-06-22gpu: host1x: Check reloc table before usageArto Merilainen1-13/+13
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>
2013-06-22gpu: host1x: Check INCR opcode correctlyTerje Bergstrom1-1/+1
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>
2013-06-22drm/tegra: Remove DRIVER_BUS_PLATFORM from driver_featuresLaurent Pinchart1-1/+1
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>
2013-06-22drm/tegra: Fix return valueThierry Reding1-1/+1
Return NULL instead of 0 in host1x_bo_lookup(). Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-05-25drm/tegra: fix error return code in gr2d_submit()Wei Yongjun1-2/+6
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>
2013-05-25drm/tegra: fix missing unlock on errorWei Yongjun1-0/+2
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>
2013-05-25drm/tegra: Honor pixel-format changesThierry Reding1-0/+2
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>
2013-05-25drm/tegra: Explicitly set irq_enabledThierry Reding1-0/+7
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>
2013-05-25drm/tegra: Don't disable unused planesThierry Reding1-0/+3
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>
2013-05-18drivers/gpu/host1x/drm: don't check resource with devm_ioremap_resourceWolfram Sang1-5/+0
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>
2013-04-22drm/tegra: don't depend on OFStephen Warren1-1/+1
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>
2013-04-22drm/tegra: Support the XBGR8888 pixelformatThierry Reding1-0/+5
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>
2013-04-22drm/tegra: Add gr2d deviceTerje Bergstrom7-3/+595
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>
2013-04-22gpu: host1x: drm: Add memory manager and fbArto Merilainen8-34/+700
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>
2013-04-22gpu: host1x: Remove second host1x driverTerje Bergstrom10-342/+317
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>
2013-04-22gpu: host1x: drm: Rename host1x to host1x_drmArto Merilainen6-26/+28
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>
2013-04-22drm/tegra: Move drm to live under host1xTerje Bergstrom13-0/+4654
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>
2013-04-22gpu: host1x: Add debug supportTerje Bergstrom15-0/+807
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>
2013-04-22gpu: host1x: Add channel supportTerje Bergstrom24-1/+2721
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>
2013-04-22gpu: host1x: Add syncpoint wait and interruptsTerje Bergstrom10-0/+846
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>
2013-04-22gpu: host1x: Add host1x driverTerje Bergstrom12-0/+893
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>
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