- 18 Jul, 2014 15 commits
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Damien Lespiau authored
We could be using uninitialized fields of the header in drm_dp_encode_sideband_msg_hdr(), for instance hdr->somt is set to 1 in the first patcket but never set to 0 otherwise. Always clear the header at the start then. Signed-off-by:
Damien Lespiau <damien.lespiau@intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Damien Lespiau authored
A static analysis tool tells me that we could try to read an uninitialized 'ret' value. Plug that. Signed-off-by:
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Matt Roper authored
drm_plane_init() (the legacy plane initialization function) takes a bool as its final parameter; originally this indicated whether a plane was 'private' to the driver (before the DRM core understood non-overlay planes), now it indicates whether the plane is a primary plane (private planes were used by some drivers to represent primary planes internally). The newer drm_universal_plane_init() take an 'enum drm_plane_type' as its final parameter to allow the caller to specify the specific plane type desired (primary, cursor, or overlay). Due to a rebasing mistake, the primary plane helper is currently passing DRM_PLANE_TYPE_PRIMARY (enum value = 1) for drm_plane_init()'s boolean 'is_primary' parameter. This winds up giving the correct behavior since DRM_PLANE_TYPE_PRIMARY evaluates as true, but is confusing to anyone reading the code since we're passing an enum value (one of three possible values) for a boolean parameter. Replace the primary plane helper's call to drm_plane_init() with drm_universal_plane_init() so that the parameter and value types match up as expected. Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Signed-off-by:
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Fabian Frederick authored
This patch removes special case of last element and loops from idx to 0. Cc: David Airlie <airlied@linux.ie> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Thierry Reding authored
The drm_property_create_enum(), drm_property_create_bitmask() and drm_property_create_range() contain the wrong name in the kerneldoc comment. This is probably simply a copy/paste mistake. Signed-off-by:
Thierry Reding <treding@nvidia.com> Signed-off-by:
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Rob Clark authored
Signed-off-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
Dave Airlie <airlied@redhat.com>
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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Rob Clark authored
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- 10 Jul, 2014 1 commit
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Sachin Kamat authored
Commit 34ea3d38 ("drm: add register and unregister functions for connectors") probably missed out converting the drm_sysfs_connector_remove instances in the following files. Without this patch we get the following compilation error: ERROR: "drm_sysfs_connector_remove" [drivers/gpu/drm/tilcdc/tilcdc.ko] undefined! Signed-off-by:
Sachin Kamat <sachin.kamat@samsung.com> CC: Thomas Wood <thomas.wood@intel.com> CC: David Herrmann <dh.herrmann@gmail.com> CC: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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- 09 Jul, 2014 3 commits
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Dave Airlie authored
seq_file.h was being pulled in via drm_mm.h in that case. Reported-by: Matthew Thode (on irc) Signed-off-by: -
Dave Airlie authored
remove it. Signed-off-by: -
git://anongit.freedesktop.org/drm-intelDave Airlie authored
- Accurate frontbuffer tracking and frontbuffer rendering invalidate, flush and flip events. This is prep work for proper PSR support and should also be useful for DRRS&fbc. - Runtime suspend hardware on system suspend to support the new SOix sleep states, from Jesse. - PSR updates for broadwell (Rodrigo) - Universal plane support for cursors (Matt Roper), including core drm patches. - Prefault gtt mappings (Chris) - baytrail write-enable pte bit support (Akash Goel) - mmio based flips (Sourab Gupta) instead of blitter ring flips - interrupt handling race fixes (Oscar Mateo) And old, not yet merged features from the previous round: - rps/turbo support for chv (Deepak) - some other straggling chv patches (Ville) - proper universal plane conversion for the primary plane (Matt Roper) - ppgtt on vlv from Jesse - pile of cleanups, little fixes for insane corner cases and improved debug support all over * tag 'drm-intel-next-2014-06-20' of git://anongit.freedesktop.org/drm-intel: (99 commits) drm/i915: Update DRIVER_DATE to 20140620 drivers/i915: Fix unnoticed failure of init_ring_common() drm/i915: Track frontbuffer invalidation/flushing drm/i915: Use new frontbuffer bits to increase pll clock drm/i915: don't take runtime PM reference around freeze/thaw drm/i915: use runtime irq suspend/resume in freeze/thaw drm/i915: Properly track domain of the fbcon fb drm/i915: Print obj->frontbuffer_bits in debugfs output drm/i915: Introduce accurate frontbuffer tracking drm/i915: Drop schedule_back from psr_exit drm/i915: Ditch intel_edp_psr_update drm/i915: Drop unecessary complexity from psr_inactivate drm/i915: Remove ctx->last_ring drm/i915/chv: Ack interrupts before handling them (CHV) drm/i915/bdw: Ack interrupts before handling them (GEN8) drm/i915/vlv: Ack interrupts before handling them (VLV) drm/i915: Ack interrupts before handling them (GEN5 - GEN7) drm/i915: Don't BUG_ON in i915_gem_obj_offset drm/i915: Grab dev->struct_mutex in i915_gem_pageflip_info drm/i915: Add some L3 registers to the parser whitelist ... Conflicts: drivers/gpu/drm/i915/i915_drv.c
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- 08 Jul, 2014 21 commits
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Matt Roper authored
Universal planes are ready to leave 'experimental' state so drop the kernel command line parameter that we've been hiding them behind. Userspace clients that wish to receive universal planes will still need to opt-in by setting the appropriate capability bit, so this should have no impact on existing userspace. Signed-off-by:
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Dave Airlie authored
This is the initial import of the helper for displayport multistream. It consists of a topology manager, init/destroy/set mst state It supports DP 1.2 MST sideband msg protocol handler - via hpd irqs connector detect and edid retrieval interface. It supports i2c device over DP 1.2 sideband msg protocol (EDID reads only) bandwidth manager API via vcpi allocation and payload updating, along with a helper to check the ACT status. Objects: MST topology manager - one per toplevel MST capable GPU port - not sure if this should be higher level again MST branch unit - one instance per plugged branching unit - one at top of hierarchy - others hanging from ports MST port - one port per port reported by branching units, can have MST units hanging from them as well. Changes since initial posting: a) add a mutex responsbile for the queues, it locks the sideband and msg slots, and msgs to transmit state b) add worker to handle connection state change events, for MST device chaining and hotplug c) add a payload spinlock d) add path sideband msg support e) fixup enum path resources transmit f) reduce max dpcd msg to 16, as per DP1.2 spec. g) separate tx queue kicking from irq processing and move irq acking back to drivers. Changes since v0.2: a) reorganise code, b) drop ACT forcing code c) add connector naming interface using path property d) add topology dumper helper e) proper reference counting and lookup for ports and mstbs. f) move tx kicking into a workq g) add aux locking - this should be redone h) split teardown into two parts i) start working on documentation on interface. Changes since v0.3: a) vc payload locking and tracking fixes b) add hotplug callback into driver - replaces crazy return 1 scheme c) txmsg + mst branch device refcount fixes d) don't bail on mst shutdown if device is gone e) change irq handler to take all 4 bytes of SINK_COUNT + ESI vectors f) make DP payload updates timeout longer - observed on docking station redock g) add more info to debugfs dumper Changes since v0.4: a) suspend/resume support b) more debugging in debugfs Changes since v0.5: a) use byte * to avoid unnecessary stack usage b) fix num_sdp_streams interpretation. c) init payload state for unplug events d) remove lenovo dock sink count hack e) drop aux lock - post rebase f) call hotplug on port destroy TODO: misc features Reviewed-by:
Todd Previte <tprevite@gmail.com> Signed-off-by:
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Dave Airlie authored
This property will be used by the MST code to provide userspace with a path to parse so it can recognise connectors around hotplugs. Reviewed-by:
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Dave Airlie authored
This is required to get fbcon probing to work on new connectors, callers should acquire the mode config lock before calling these. Reviewed-by:
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Dave Airlie authored
This can be called to update things after dynamic connectors/encoders are created/deleted. Reviewed-by:
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Stéphane Marchesin authored
This is a very crude page_flip implementation for UDL. There are ways to make it better (make it asynchronous, make it do actual vsynced flips...) but that's for another patch. [airlied: fixup primary change] Signed-off-by:
Stéphane Marchesin <marcheu@chromium.org> Signed-off-by:
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Stéphane Marchesin authored
This is needed to be able to send page flip completion events. Also while I'm at it, fix the error paths on init. Signed-off-by:
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Thierry Reding authored
A race condition currently exists on Tegra, where it can happen that a monitor attached via HDMI isn't detected during the initial FB helper setup, but the hotplug event happens too early to be processed by the poll helpers because they haven't been initialized yet. This happens because on some boards the HDMI driver can control the regulator that supplies the +5V pin on the HDMI connector. Therefore depending on the timing between the initialization of the HDMI driver and the rest of DRM, it's possible that the monitor returns the hotplug signal right within the window where we would miss it. Unfortunately, drm_kms_helper_poll_init() will wreak havoc when called before at least some parts of the FB helpers have been set up. This commit fixes this by splitting out the minimum of initialization required to make drm_kms_helper_poll_init() work into a separate function that can be called early. It is then safe to move all of the poll helper initialization to an earlier point in time (before the HDMI output driver has a chance to enable the +5V supply). That way if the hotplug signal is returned before the initial FB helper setup, the monitor will be forcefully detected at that point, and if the hotplug signal is returned after that it will be properly handled by the poll helpers. Signed-off-by:
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Thierry Reding authored
To implement hotplug detection in a race-free manner, drivers must call drm_kms_helper_poll_init() before hotplug events can be triggered. Such events can be triggered right after any of the encoders or connectors are initialized. At the same time, if the drm_fb_helper_hotplug_event() helper is used by a driver, then the poll helper requires some parts of the FB helper to be initialized to prevent a crash. At the same time, drm_fb_helper_init() requires information that is not necessarily available at such an early stage (number of CRTCs and connectors), so it cannot be used yet. Add a new helper, drm_fb_helper_prepare(), that initializes the bare minimum needed to allow drm_kms_helper_poll_init() to execute and any subsequent hotplug events to be processed properly. Reviewed-by:
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Thierry Reding authored
There's no need for this to be modifiable. Make it const so that it can be put into the .rodata section. Reviewed-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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Daniel Vetter authored
Some drivers need to be able to have a perfect race-free fbcon setup. Current drivers only enable hotplug processing after the call to drm_fb_helper_initial_config which leaves a tiny but important race. This race is especially noticable on embedded platforms where the driver itself enables the voltage for the hdmi output, since only then will monitors (after a bit of delay, as usual) respond by asserting the hpd pin. Most of the infrastructure is already there with the split-out drm_fb_helper_init. And drm_fb_helper_initial_config already has all the required locking to handle concurrent hpd events since commit 53f1904b Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Mar 20 14:26:35 2014 +0100 drm/fb-helper: improve drm_fb_helper_initial_config locking The only missing bit is making drm_fb_helper_hotplug_event save against concurrent calls of drm_fb_helper_initial_config. The only unprotected bit is the check for fb_helper->fb. With that drivers can first initialize the fb helper, then enabel hotplug processing and then set up the initial config all in a completely race-free manner. Update kerneldoc and convert i915 as a proof of concept. Feature requested by Thierry since his tegra driver atm reliably boots slowly enough to misses the hotplug event for an external hdmi screen, but also reliably boots to quickly for the hpd pin to be asserted when the fb helper calls into the hdmi ->detect function. Cc: Thierry Reding <treding@nvidia.com> Signed-off-by:
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Martin Kepplinger authored
Fix a sparse warning: ttm_bo_reserve()'s last argument is a pointer to a struct, so use NULL as nullpointer. Signed-off-by:
Martin Kepplinger <martink@posteo.de> Reviewed-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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Guido Martínez authored
Use module_init instead of late_initcall, as is the norm for modular drivers. module_init was used until 6e8de0bd ("drm/tilcdc: add encoder slave (v2)") changed it to a late_initcall, but it does not explain why. Tests show it's working properly with module_init. Signed-off-by:
Guido Martínez <guido@vanguardiasur.com.ar> Tested-by:
Darren Etheridge <detheridge@ti.com> Signed-off-by:
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Guido Martínez authored
The TI tilcdc driver is designed with a notion of submodules. Currently, at unload time, these submodules are iterated and destroyed. Now that the tilcdc remove order is fixed, this can be handled perfectly by the kernel using the device infrastructure, since each submodule is a kernel driver itself, and they are only destroy()'ed at unload time. Therefore we move the destroy() functionality to each submodule's remove(). Also, remove some checks in the unloading process since the new code guarantees the resources are allocated and need a release. Signed-off-by:
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Guido Martínez authored
display_timings_release calls kfree on the display_timings object passed to it. Calling kfree after it is wrong. SLUB debug showed the following warning: ============================================================================= BUG kmalloc-64 (Tainted: G W ): Object already free ----------------------------------------------------------------------------- Disabling lock debugging due to kernel taint INFO: Allocated in of_get_display_timings+0x2c/0x214 age=601 cpu=0 pid=884 __slab_alloc.constprop.79+0x2e0/0x33c kmem_cache_alloc+0xac/0xdc of_get_display_timings+0x2c/0x214 panel_probe+0x7c/0x314 [tilcdc] platform_drv_probe+0x18/0x48 [..snip..] INFO: Freed in panel_destroy+0x18/0x3c [tilcdc] age=0 cpu=0 pid=907 __slab_free+0x34/0x330 panel_destroy+0x18/0x3c [tilcdc] tilcdc_unload+0xd0/0x118 [tilcdc] drm_dev_unregister+0x24/0x98 [..snip..] Signed-off-by: -
Guido Martínez authored
Unregister resources in the correct order on tilcdc_drm_fini, which is the reverse order they were registered during tilcdc_drm_init. This also means unregistering the driver before releasing its resources. Signed-off-by:
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Guido Martínez authored
The driver did not unregister the allocated framebuffer, which caused memory leaks (and memory manager WARNs) when unloading. Also, the framebuffer device under /dev still existed after unloading. Add a call to drm_fbdev_cma_fini when unloading the module to prevent both issues. Signed-off-by:
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Guido Martínez authored
Add a drm_sysfs_connector_remove call when we destroy the panel to make sure the connector node in sysfs gets deleted. This is required for proper unload and re-load of this driver, otherwise we will get a warning about a duplicate filename in sysfs. Signed-off-by:
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Guido Martínez authored
Add a drm_sysfs_connector_remove call when we destroy the panel to make sure the connector node in sysfs gets deleted. This is required for proper unload and re-load of this driver as a module. Without this, we would get a warning at re-load time like so: tda998x 0-0070: found TDA19988 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 825 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74() sysfs: cannot create duplicate filename '/class/drm/card0-HDMI-A-1' Modules linked in: [..] CPU: 0 PID: 825 Comm: modprobe Not tainted 3.15.0-rc4-00027-g9dcdef4 #82 [<c0013bb8>] (unwind_backtrace) from [<c0011824>] (show_stack+0x10/0x14) [<c0011824>] (show_stack) from [<c0034e8c>] (warn_slowpath_common+0x68/0x88) [<c0034e8c>] (warn_slowpath_common) from [<c0034edc>] (warn_slowpath_fmt+0x30/0x40) [<c0034edc>] (warn_slowpath_fmt) from [<c01243f4>] (sysfs_warn_dup+0x54/0x74) [<c01243f4>] (sysfs_warn_dup) from [<c0124708>] (sysfs_do_create_link_sd.isra.2+0xb0/0xb8) [<c0124708>] (sysfs_do_create_link_sd.isra.2) from [<c02ae37c>] (device_add+0x338/0x520) [<c02ae37c>] (device_add) from [<c02ae6e8>] (device_create_groups_vargs+0xa0/0xc4) [<c02ae6e8>] (device_create_groups_vargs) from [<c02ae758>] (device_create+0x24/0x2c) [<c02ae758>] (device_create) from [<c029b4ec>] (drm_sysfs_connector_add+0x64/0x204) [<c029b4ec>] (drm_sysfs_connector_add) from [<bf0b1b40>] (slave_modeset_init+0x120/0x1bc [tilcdc]) [<bf0b1b40>] (slave_modeset_init [tilcdc]) from [<bf0b2be8>] (tilcdc_load+0x214/0x4c0 [tilcdc]) [<bf0b2be8>] (tilcdc_load [tilcdc]) from [<c029955c>] (drm_dev_register+0xa4/0x104) [..snip..] ---[ end trace 4df8d614936ebdee ]--- [drm:drm_sysfs_connector_add] *ERROR* failed to register connector device: -17 Signed-off-by: -
Guido Martínez authored
Add a drm_sysfs_connector_remove call when we destroy the panel to make sure the connector node in sysfs gets deleted. This is required for proper unload and re-load of this driver as a module. Without this, we would get a warning at re-load time like so: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 824 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x54/0x74() sysfs: cannot create duplicate filename '/class/drm/card0-LVDS-1' Modules linked in: [...] CPU: 0 PID: 824 Comm: modprobe Not tainted 3.15.0-rc4-00027-g6484f96-dirty #81 [<c0013bb8>] (unwind_backtrace) from [<c0011824>] (show_stack+0x10/0x14) [<c0011824>] (show_stack) from [<c0034e8c>] (warn_slowpath_common+0x68/0x88) [<c0034e8c>] (warn_slowpath_common) from [<c0034edc>] (warn_slowpath_fmt+0x30/0x40) [<c0034edc>] (warn_slowpath_fmt) from [<c01243f4>] (sysfs_warn_dup+0x54/0x74) [<c01243f4>] (sysfs_warn_dup) from [<c0124708>] (sysfs_do_create_link_sd.isra.2+0xb0/0xb8) [<c0124708>] (sysfs_do_create_link_sd.isra.2) from [<c02ae37c>] (device_add+0x338/0x520) [<c02ae37c>] (device_add) from [<c02ae6e8>] (device_create_groups_vargs+0xa0/0xc4) [<c02ae6e8>] (device_create_groups_vargs) from [<c02ae758>] (device_create+0x24/0x2c) [<c02ae758>] (device_create) from [<c029b4ec>] (drm_sysfs_connector_add+0x64/0x204) [<c029b4ec>] (drm_sysfs_connector_add) from [<bf0b1fec>] (panel_modeset_init+0xb8/0x134 [tilcdc]) [<bf0b1fec>] (panel_modeset_init [tilcdc]) from [<bf0b2bf0>] (tilcdc_load+0x214/0x4c0 [tilcdc]) [<bf0b2bf0>] (tilcdc_load [tilcdc]) from [<c029955c>] (drm_dev_register+0xa4/0x104) [ .. snip .. ] ---[ end trace b2d09cd9578b0497 ]--- [drm:drm_sysfs_connector_add] *ERROR* failed to register connector device: -17 Signed-off-by: -
Fabien DESSENNE authored
The "flags" parameter of the DRM_IOCTL_MODE_ADDFB2 ioctl must be propagated and used by the driver. The only possible value of flags is DRM_MODE_FB_INTERLACED. Signed-off-by:
Fabien Dessenne <fabien.dessenne@st.com> Reviewed-by:
Benjamin GAIGNARD <benjamin.gaignard@st.com> Signed-off-by:
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