- 15 May, 2017 1 commit
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Chris Wilson authored
Both as an exercise to document that we are reading the state outside of the appropriate mutex and to ensure that we only read the value once before the multiple comparisons, use READ_ONCE. Signed-off-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170513105201.17658-1-chris@chris-wilson.co.uk
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- 10 May, 2017 8 commits
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Laura Abbott authored
We need a declaration of struct device to avoid warnings: In file included from include/drm/drm_file.h:38:0, from drivers/gpu/drm/drm_file.c:38: include/drm/drm_prime.h:71:14: warning: 'struct device' declared inside parameter list will not be visible outside of this definition or declaration struct device *attach_dev); ^~~~~~ Forward declare it. Signed-off-by:Laura Abbott <labbott@redhat.com> Reviewed-by:
Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by:
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Daniel Vetter authored
In the previous patch we've implemented hwmode tracking a la i915 for the vblank timestamp calculations. But that was just the basic semantics, i915 has some nice sanity checks to make sure we keep getting this right. Move them over too. v2: - WARN_ON_ONCE to avoid excessive spam (Ville) - Really only WARN on atomic drivers. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
Neil Armstrong <narmstrong@baylibre.com> Acked-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170509140329.24114-5-daniel.vetter@ffwll.ch
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Daniel Vetter authored
If we restrict this helper to only kms drivers (which is the case) we can look up the correct mode easily ourselves. But it's a bit tricky: - All legacy drivers look at crtc->hwmode. But that is updated already at the beginning of the modeset helper, which means when we disable a pipe. Hence the final timestamps might be a bit off. But since this is an existing bug I'm not going to change it, but just try to be bug-for-bug compatible with the current code. This only applies to radeon&amdgpu. - i915 tries to get it perfect by updating crtc->hwmode when the pipe is off (i.e. vblank->enabled = false). - All other atomic drivers look at crtc->state->adjusted_mode. Those that look at state->requested_mode simply don't adjust their mode, so it's the same. That has two problems: Accessing crtc->state from interrupt handling code is unsafe, and it's updated before we shut down the pipe. For nonblocking modesets it's even worse. For atomic drivers try to implement what i915 does. To do that we add a new hwmode field to the vblank structure, and update it from drm_calc_timestamping_constants(). For atomic drivers that's called from the right spot by the helper library already, so all fine. But for safety let's enforce that. For legacy driver this function is only called at the end (oh the fun), which is broken, so again let's not bother and just stay bug-for-bug compatible. The benefit is that we can use drm_calc_vbltimestamp_from_scanoutpos directly to implement ->get_vblank_timestamp in every driver, deleting a lot of code. v2: Completely new approach, trying to mimick the i915 solution. v3: Fixup kerneldoc. v4: Drop the WARN_ON to check that the vblank is off, atomic helpers currently unconditionally call this. Recomputing the same stuff should be harmless. v5: Fix typos and move misplaced hunks to the right patches (Neil). v6: Undo hunk movement (kbuild). Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Cc: Eric Anholt <eric@anholt.net> Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
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Daniel Vetter authored
This is going to be a bit too much, but good to have at least a small note about where this should all head towards. Acked-by:
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Daniel Vetter authored
It's overkill to have a flag parameter which is essentially used just as a boolean. This takes care of core + adjusting drivers. Adjusting the scanout position callback is a bit harder, since radeon also supplies it's own driver-private flags in there. v2: Fixup misplaced hunks (Neil). v3: kbuild says v1 was better ... Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Cc: Eric Anholt <eric@anholt.net> Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
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Daniel Vetter authored
There's really no reason for anything more: - Calling this while the crtc vblank stuff isn't set up is a driver bug. Those places alrready DRM_ERROR. - Calling this when the crtc is off is either a driver bug (calling drm_crtc_handle_vblank at the wrong time) or a core bug (for anything else). Again, we DRM_ERROR. - EINVAL is checked at higher levels already, and if we'd use struct drm_crtc * instead of (dev, pipe) it would be real obvious that those are again core bugs. The only valid failure mode is crap hardware that couldn't sample a useful timestamp, to ask the core to just grab a not-so-accurate timestamp. Bool is perfectly fine for that. v2: Also fix up the one caller, I lost that in the shuffling (Jani). v3: Fixup commit message (Neil). Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Cc: Eric Anholt <eric@anholt.net> Cc: Rob Clark <robdclark@gmail.com> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Ben Skeggs <bskeggs@redhat.com> Reviewed-by:
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Chris Wilson authored
With Laura's introduction of the fake platform device for importing dmabuf, we add a second static that is logically tied to the vgem_device. Convert vgem over to using the struct drm_device subclassing, so that the platform device is stored inside its owner. Signed-off-by:
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Gustavo A. R. Silva authored
Local variable use_gct is assigned to a constant value and it is never updated again. Remove this variable and the dead code it guards. Addresses-Coverity-ID: 145690 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by:
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- 09 May, 2017 10 commits
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Markus Elfring authored
MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written !… Thus fix the affected source code places. Signed-off-by:
Markus Elfring <elfring@users.sourceforge.net> Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: http://patchwork.freedesktop.org/patch/msgid/918229e6-80fe-629f-8fec-bf60ac15275f@users.sourceforge.net
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Markus Elfring authored
Adjust this description for a function call. Signed-off-by:
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Markus Elfring authored
Add a missing character in this description for a data structure. Signed-off-by:
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Markus Elfring authored
Single characters should be put into a sequence at several places. Thus use the corresponding function "seq_putc". This issue was detected by using the Coccinelle software. Signed-off-by:
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Markus Elfring authored
Some data were put into a sequence by separate function calls. Print the same data by five single function calls instead. This issue was detected by using the Coccinelle software. Signed-off-by:
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Nicolas Iooss authored
gdp_dbg_ctl() uses seq_printf() to display a color format name even though there is no format string. When using -Wformat-string, gcc reports the following warning: drivers/gpu/drm/sti/sti_gdp.c: In function 'gdp_dbg_ctl': drivers/gpu/drm/sti/sti_gdp.c:150:18: warning: format not a string literal and no format arguments [-Wformat-security] seq_printf(s, gdp_format_to_str[i].name); ^~~~~~~~~~~~~~~~~ Silence this warning by using seq_puts() instead. Signed-off-by:Nicolas Iooss <nicolas.iooss_linux@m4x.org> Signed-off-by:
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Daniel Vetter authored
With all drivers converted there's only legacy dri1 drivers using it. Not going to touch those, instead just hide it like we've done with other dri1 driver hooks like firstopen. In all this I didn't find any real reason why we'd needed 2 hooks, and having symmetry between open and close just appeases my OCD better. Yeah, someone else could do an s/postclose/close/, but that's for someone who understands cocci. And maybe after this series is reviewed and landed, to avoid patch-regen churn. v2: s/last/post/close in the kernel-doc (Sean). Reviewed-by:
Sean Paul <seanpaul@chromium.org> Reviewed-by:
Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by:
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Daniel Vetter authored
Again no apparent explanation for the split except hysterical raisins. Merging them also makes it a bit more obviuos what's going on wrt the runtime pm refdancing. Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by:
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Daniel Vetter authored
I didn't spot anything that would require ordering here (well not anywhere else either), and I'm trying to unify at least modern drivers on one close hook. Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-tegra@vger.kernel.org Reviewed-by:
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Daniel Vetter authored
Again no apparent explanation for the split except hysterical raisins. Merging them also makes it a bit more obviuos what's going on wrt the runtime pm refdancing. Cc: Ben Skeggs <bskeggs@redhat.com> Cc: nouveau@lists.freedesktop.org Reviewed-by:
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- 08 May, 2017 15 commits
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Tom Cooksey authored
This is a modesetting driver for the pl111 CLCD display controller found on various ARM platforms such as the Versatile Express. The driver has only been tested on the bcm911360_entphn platform so far, with PRIME-based buffer sharing between vc4 and clcd. It reuses the existing devicetree binding, while not using quite as many of its properties as the fbdev driver does (those are left for future work). v2: Nearly complete rewrite by anholt, cutting 2/3 of the code thanks to DRM core's excellent new helpers. v3: Don't match pl110 any more, don't attach if we don't have a DRM panel, use DRM_GEM_CMA_FOPS, update MAINTAINERS, use the simple display helper, use drm_gem_cma_dumb_create (same as our wrapper). v4: Change the driver's .name to not clash with fbdev in sysfs, drop platform alias, drop redundant "drm" in DRM driver name, hook up .prepare_fb to the CMA helper so that DMA fences should work. v5: Move register definitions inside the driver directory, fix build in COMPILE_TEST and !AMBA mode. v6: Drop TIM2_CLKSEL for now to be consistent with existing DT bindings, switch back to external register definitions. Signed-off-by:Tom Cooksey <tom.cooksey@arm.com> Signed-off-by:
Eric Anholt <eric@anholt.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> (v5) Acked-by:
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Eric Anholt authored
We'd like to reuse these register definitions for the DRM CLCD driver, but there's a bunch of fbdev-specific code in the current header. v2: Add #ifndef guard. Signed-off-by:
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Eric Anholt authored
Cygnus has V3D 2.6 instead of 2.1, and doesn't use the VC4 display modules. The V3D can be uniquely identified by the IDENT[01] registers, and there's nothing to key off of for the display change other than the lack of DT nodes for the display components, but it's convention to have new compatible strings anyway. Signed-off-by:
Rob Herring <robh@kernel.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170428224223.21904-3-eric@anholt.net
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Eric Anholt authored
There's no sense in having an fbdev if there's no display, since connectors don't get hotplugged to this hardware. On Cygnus we were getting a dmesg error from passing in num_connectors (0), when that argument is supposed to be the maximum number of cloned connectors per CRTC (1). Signed-off-by:
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Eric Anholt authored
For the Raspberry Pi's bindings, the power domain also implicitly turns on the clock and deasserts reset, but for the new Cygnus port we start representing the clock in the devicetree. v2: Document the clock-names property, check for -ENOENT for no clock in DT. v3: Drop NULL checks around clk calls which embed NULL checks. v4: Drop clk-names (feedback by Rob Herring) Signed-off-by: -
Imre Deak authored
plane_state can't be NULL anywhere in this function, so the NULL check at the end is redundant, remove it. Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Imre Deak <imre.deak@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1493214013-15580-9-git-send-email-imre.deak@intel.comReviewed-by:
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Markus Elfring authored
Three single characters (line breaks) should be put into a sequence. Thus use the corresponding function "seq_putc". This issue was detected by using the Coccinelle software. Signed-off-by:
Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by:
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Markus Elfring authored
The script "checkpatch.pl" pointed information out like the following. Comparison to NULL could be written "!attach" Thus adjust this expression. Signed-off-by:
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Markus Elfring authored
Replace the specification of a data structure by a pointer dereference as the parameter for the operator "sizeof" to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by:
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Markus Elfring authored
A bit of data was put into a sequence by two separate function calls. Print the same data by a single function call instead. This issue was detected by using the Coccinelle software. Signed-off-by:
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Maarten Lankhorst authored
Some connectors may not allow all scaling mode properties, this function will allow creating the scaling mode property with only the supported subset. It also wires up this state for atomic. This will make it possible to convert i915 connectors to atomic. Changes since v1: - Add DRM_MODE_PROP_ENUM flag to drm_property_create - Use the correct index in drm_property_add_enum. - Add DocBook for function (Sean Paul). - Warn if less than 2 valid scaling modes are passed. - Remove level of indent. (Sean Paul) Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170501133804.8116-3-maarten.lankhorst@linux.intel.com [mlankhorst: Rename function, fix docbook issues] Reviewed-by:
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Maarten Lankhorst authored
This is only used in i915, which had used its own non-atomic way to deal with the picture aspect ratio. Move selected aspect_ratio to atomic state and use the atomic state in the affected i915 connectors. Signed-off-by:
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Laura Abbott authored
Enable the GEM dma-buf import interfaces in addition to the export interfaces. This lets vgem be used as a test source for other allocators (e.g. Ion). Reviewed-by:
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Laura Abbott authored
The existing drm_gem_prime_import function uses the underlying struct device of a drm_device for attaching to a dma_buf. Some drivers (notably vgem) may not have an underlying device structure. Offer an alternate function to attach using any available device structure. Signed-off-by:
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Laura Abbott authored
The vgem driver is currently registered independent of any actual device. Some usage of the dmabuf APIs require an actual device structure to do anything. Register a dummy platform device for use with dmabuf. Reviewed-by:
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- 04 May, 2017 6 commits
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Pandiyan, Dhinakaran authored
Use the added helpers to track MST link bandwidth for atomic modesets. Link bw is acquired in the ->atomic_check() phase when CRTCs are being enabled with drm_atomic_find_vcpi_slots(). Similarly, link bw is released during ->atomic_check() with the connector helper callback ->atomic_check() when CRTCs are disabled. v6: active_changed does not alter vcpi allocations (Maarten) v5: Implement connector->atomic_check() in place of atomic_release() v4: Return an int from intel_dp_mst_atomic_release() (Maarten) v3: Handled the case where ->atomic_release() is called more than once during an atomic_check() for the same state. v2: Squashed atomic_release() implementation and caller (Daniel) Fixed logic for connector-crtc switching case (Daniel) Fixed logic for suspend-resume case. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Harry Wentland <Harry.wentland@amd.com> Acked-by:
Harry Wentland <harry.wentland@amd.com> Reviewed-by:
Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Signed-off-by:
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Pandiyan, Dhinakaran authored
drm_dp_atomic_find_vcpi_slots() should be called from ->atomic_check() to check there are sufficient vcpi slots for a mode and to add that to the state. This should be followed by a call to drm_dp_mst_allocate_vcpi() in ->atomic_commit() to initialize a struct vcpi for the port. drm_dp_atomic_release_vcpi_slots() should be called from ->atomic_check() to release a port's vcpi slot allocation from the state. Drivers that do not make use of this atomic helper are expected to call drm_dp_find_vcpi_slots() instead before calling drm_dp_mst_allocate_vcpi(). v3: drm_dp_atomic_release_vcpi_slots() now needs to know how many slots to release as we may not have a valid reference to port. v2: Added checks for verifying the port reference is valid Moved get_mst_topology_state() into the helpers (Daniel) Changed find_vcpi_slots() to not depend on current allocation Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Harry Wentland <Harry.wentland@amd.com> Reviewed-by: -
Pandiyan, Dhinakaran authored
Link bandwidth is shared between multiple display streams in DP MST configurations. The DP MST topology manager structure maintains the shared link bandwidth for a primary link directly connected to the GPU. For atomic modesetting drivers, checking if there is sufficient link bandwidth for a mode needs to be done during the atomic_check phase to avoid failed modesets. Let's encapsulate the available link bw information in a private state structure so that bw can be allocated and released atomically for each of the ports sharing the primary link. v3: WARN_ON() if connection_mutex is not held (Archit) v2: Included kernel doc, moved state initialization and switched to kmemdup() for allocation (Daniel) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Harry Wentland <Harry.wentland@amd.com> Reviewed-by:
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Pandiyan, Dhinakaran authored
It is necessary to track states for objects other than connector, crtc and plane for atomic modesets. But adding objects like DP MST link bandwidth to drm_atomic_state would mean that a non-core object will be modified by the core helper functions for swapping and clearing it's state. So, lets add void * objects and helper functions that operate on void * types to keep these objects and states private to the core. Drivers can then implement specific functions to swap and clear states. The other advantage having just void * for these objects in drm_atomic_state is that objects of different types can be managed in the same state array. v7: Use __for_each_private_obj to define for_each_private_obj (Maarten) v6: More kernel-doc to keep 0-day happy v5: Remove more NULL checks (Maarten) v4: Avoid redundant NULL checks when private_objs array is empty (Maarten) v3: Macro alignment (Chris) v2: Added docs and new iterator to filter private objects (Daniel) Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Harry Wentland <Harry.wentland@amd.com> Acked-by:
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git://people.freedesktop.org/~airlied/linuxSean Paul authored
Backmerging Dave's 'drm-for-v4.12' pull request now that it's landed. There are a bunch of non-drm changes which are just random bits we hadn't yet picked up in misc-next. main drm pull request for 4.12 kernel Signed-off-by:
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Chris Wilson authored
Scatter a few cond_resched() in between phases of the drm_mm selftests to try and prevent us incurring the wrath of the NMI watchdog. Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by:
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