- 29 Apr, 2017 4 commits
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Wei Yongjun authored
The error return code PTR_ERR(mc) is always 0 since mc is equal to 0 in this error handling case. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
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Mario Kleiner authored
So far we only allowed for 1 retry and just failed the query - and thereby high precision vblank timestamping - if we did not get a reasonable result, as such a failure wasn't considered all too horrible. There are a few NVidia gpu models out there which may need a bit more than 1 retry to get a successful query result under some conditions. Since Linux 4.4 the update code for vblank counter and timestamp in drm_update_vblank_count() changed so that the implementation assumes that high precision vblank timestamping of a kms driver either consistently succeeds or consistently fails for a given video mode and encoder/connector combo. Iow. switching from success to fail or vice versa on a modeset or connector change is ok, but spurious temporary failure for a given setup can confuse the core code and potentially cause bad miscounting of vblanks and confusion or hangs in userspace clients which rely on vblank stuff, e.g., desktop compositors. Therefore change the max retry count to a larger number - more than any gpu so far is known to need to succeed, but still low enough so that these queries which do also happen in vblank interrupt are still fast enough to be not disastrously long if something would go badly wrong with them. As such sporadic retries only happen seldom even on affected gpu's, this could mean a vblank irq could take a few dozen microseconds longer every few hours of uptime -- better than a desktop compositor randomly hanging every couple of hours or days of uptime in a hard to reproduce manner. Signed-off-by:
Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by:
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Ben Skeggs authored
Fixes OOB VBIOS accesses on some boards. Signed-off-by: -
Ilia Mirkin authored
Signed-off-by:Ilia Mirkin <imirkin@alum.mit.edu>
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- 06 Apr, 2017 23 commits
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Adam Borowski authored
The code attempts to enable them, but hits an undefined behaviour by shifting by the entire register's width: int lines = 32; u32 mask = (1 << lines) - 1; // 00000000 on x86 u32 mask = (1 << lines) - 1; // ffffffff on arm (32) u32 mask = (1 << lines) - 1; // 00000000 on arm64 u32 mask = (1ULL << lines) - 1; // ffffffff everywhere Signed-off-by:Adam Borowski <kilobyte@angband.pl> Signed-off-by:
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Ben Skeggs authored
Forked from GP106 implementation. Differences: - 1 PPC/GPC - Slightly different grctx magics Signed-off-by: -
Alexandre Courbot authored
Signed-off-by:
Alexandre Courbot <acourbot@nvidia.com> Signed-off-by:
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Alexandre Courbot authored
Signed-off-by:
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Alexandre Courbot authored
GP10B's power is managed by generic PM domains, so it does not require a VDD regulator. Add this option into the chip function structure. Signed-off-by:
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Alexandre Courbot authored
GR is similar to GP100, with a few unavailable registers. Signed-off-by:
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Alexandre Courbot authored
GP10B requires a specific initialization sequence due to the absence of devinit. Signed-off-by:
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Alexandre Courbot authored
GP10B's MC is compatible with GP100's, but engines need to be explicitly put out of ELPG during init. Signed-off-by:
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Alexandre Courbot authored
GP10B's FB is largely compatible with the GP100 implementation. Signed-off-by:
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Alexandre Courbot authored
GP10B's FIFO is similar to GP100's, but only allows 512 channels. Signed-off-by:
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Alexandre Courbot authored
The GP10B firmware is very close to GM20B's. The only difference is that it supports booting multiple falcons. In order to avoid having too much functions and structures shared, implement its support in the same source file as GM20B firmware. Signed-off-by:
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Alexandre Courbot authored
GP10B's secboot is largely similar to GM20B's. Only differences are MC base address and the fact that GPCCS is also securely managed. Signed-off-by:
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Alexandre Courbot authored
Allow the MC base address to be specified as an argument for the WPR region reading function. GP10B uses a different address layout as GM20B, so this is necessary. Also export the function to be used by GP10B. Signed-off-by:
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Alexandre Courbot authored
The LS firmware post-run hook is the right place to start said LS firmware. Moving it here also allows to remove special handling in the ACR code. Signed-off-by:
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Alexandre Courbot authored
A LS post-run hook can meet an error meaning the failure of secure boot. Make sure this can be reported. Signed-off-by:
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Alexandre Courbot authored
Having access to the secboot instance loading a LS firmware can be useful to LS firmware handlers. At least more useful than just having an out-of-context subdev pointer. GP10B's firmware will also need to know the WPR address, which can be obtained from the secboot instance. Signed-off-by:
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Alexandre Courbot authored
Change the secboot and msgqueue interfaces to take a mask of falcons to reset instead of a single falcon. The GP10B firmware interface requires FECS and GPCCS to be booted in a single firmware command. For firmwares that only support single falcon boot, it is trivial to loop over the mask and boot each falcons individually. Signed-off-by:
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Thierry Reding authored
The gk20a implementation of instance memory uses vmap()/vunmap() to map memory regions into the kernel's virtual address space. These functions may sleep, so protecting them by a spin lock is not safe. This triggers a warning if the DEBUG_ATOMIC_SLEEP Kconfig option is enabled. Fix this by using a mutex instead. Signed-off-by:
Thierry Reding <treding@nvidia.com> Reviewed-by:
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Ben Skeggs authored
Forked from GP106 implementation. Split out from commit enabling secboot/gr support so that it can be added to earlier kernels. Cc: stable@vger.kernel.org [4.10+] Signed-off-by: -
Ben Skeggs authored
When the atomic support was added to nouveau, the DRM core did not do this. However, later in the same merge window, a commit (drm/fence: add in-fences support) was merged that added it, leading to use-after-frees of the fence object. Cc: stable@vger.kernel.org [4.10+] Signed-off-by: -
Ben Skeggs authored
Cc: stable@vger.kernel.org [4.10+] Signed-off-by: -
Ilia Mirkin authored
The NV4A (aka NV44A) is an oddity in the family. It only comes in AGP and PCI varieties, rather than a core PCIE chip with a bridge for AGP/PCI as necessary. As a result, it appears that the MMU is also non-functional. For AGP cards, the vast majority of the NV4A lineup, this worked out since we force AGP cards to use the nv04 mmu. However for PCI variants, this did not work. Switching to the NV04 MMU makes it work like a charm. Thanks to mwk for the suggestion. This should be a no-op for NV4A AGP boards, as they were using it already. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=70388Signed-off-by:
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Ilia Mirkin authored
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- 04 Apr, 2017 13 commits
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git://linuxtv.org/pinchartl/mediaDave Airlie authored
RCAR GEN3 DU HDMI support. * 'drm/next/du' of git://linuxtv.org/pinchartl/media: (22 commits) drm: rcar-du: Add HDMI outputs to R8A7795 device description drm: rcar-du: Add DPLL support drm: rcar-du: Skip disabled outputs drm: rcar-du: Add Gen3 HDMI encoder support dt-bindings: display: renesas: Add R-Car Gen3 HDMI TX DT bindings drm: rcar-du: Hardcode encoders types to DRM_MODE_ENCODER_NONE drm: rcar-du: Replace manual bridge implementation with DRM bridge drm: rcar-du: Add support for LVDS mode selection drm: rcar-du: Use the DRM panel API drm: rcar-du: Document the vsps property in the DT bindings drm: rcar-du: Remove wait field from rcar_du_device structure drm: rcar-du: Make sure the VSP is initialized on platforms that need it drm: rcar-du: Use DRM core's atomic commit helper drm: rcar-du: Clear handled event pointer in CRTC state drm: rcar-du: Handle event when disabling CRTCs drm: rcar-du: Don't open code of_device_get_match_data() drm: rcar-du: Switch to encoder .atomic_mode_set() helper function drm: panels: Add LVDS panel driver drm: Add data transmission order bus flag devicetree/bindings: display: Add bindings for two Mitsubishi panels ...
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Koji Matsuoka authored
Update the device description with the two available HDMI outputs. Signed-off-by:
Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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Koji Matsuoka authored
The implementation hardcodes a workaround for the H3 ES1.x SoC regardless of the SoC revision, as the workaround can be safely applied on all devices in the Gen3 family without any side effect. Signed-off-by:
Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by:
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Laurent Pinchart authored
When a DT node connected to a DU output is disabled no bridge will ever be instantiated for it. Skip the output in that case. Signed-off-by: -
Koji Matsuoka authored
The R-Car Gen3 SoCs include on-chip DesignWare HDMI encoders. Support them with a platform driver to provide platform glue data to the dw-hdmi driver. The driver is a complete rewrite of code coming from the Renesas BSP, save for the values in the PHY parameters table. Signed-off-by:
Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
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Laurent Pinchart authored
The Renesas R-Car Gen3 SoCs use a Synopsys DWC HDMI TX encoder IP. Add corresponding device tree bindings based on the DWC HDMI TX bindings model. Signed-off-by:
Rob Herring <robh@kernel.org>
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Laurent Pinchart authored
Unlike the connector type, the encoder type is unused by userspace. As it is equally unused in the driver, except in a single location where the connector type can be used instead, hardcode it to DRM_MODE_ENCODER_NONE. This allow removing all code that tries to determine (unsuccessfully in case a bridge is used) the encoder type. Signed-off-by: -
Laurent Pinchart authored
The rcar-du driver contains a manual implementation of HDMI and VGA bridges. Use DRM bridges to replace it. Signed-off-by: -
Laurent Pinchart authored
Retrieve the LVDS mode from the panel and configure the LVDS encoder accordingly. LVDS mode selection is static as LVDS panels can't be hot-plugged on any of the device supported by the driver. Support for dynamic mode selection can be implemented in the future when needed. Signed-off-by: -
Laurent Pinchart authored
Instead of parsing the panel device tree node manually, use the panel API to delegate panel handling to a panel driver. Signed-off-by: -
Laurent Pinchart authored
The property is used by the driver but is missing from the DT bindings. Document it. Reported-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Laurent Pinchart authored
The field is a left-over from the switch to the atomic commit helper. It's unused, remove it. Signed-off-by: -
Jacopo Mondi authored
On Gen3 platforms planes are managed by the external VSP compositor on behalf of DRM/KMS. If VSP compositor support is not enabled in the DU driver, the VSP initialization stub routine is called. Return an error from that stub to fail explicitly, otherwise the device won't be usable and the driver will crash. Signed-off-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by:
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