- 18 Jul, 2014 1 commit
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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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- 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 26 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:
Matt Roper <matthew.d.roper@intel.com> 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:
Thierry Reding <treding@nvidia.com> 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:
Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-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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Christian König authored
bo->mem.placement is not initialized when ttm_bo_man_get_node is called, so the flag had no effect at all. v2: change nouveau and vmwgfx as well Signed-off-by:
Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by:
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Alex Williamson authored
The VGA arbiter does not allow devices to "own" resources that it doesn't "decode". However, it does allow devices to "lock" resources that it doesn't decode. This gets us into trouble because locking the resource goes through the same bridge routing updates regardless of whether we decode the resource. This means that when a non-decoded resource is released, the bridge is left with VGA routing enabled and locking a different device won't clear it. This happens in the following scenario: VGA device 01:00.0 (VGA1) is owned by the radeon driver, which registers a set_vga_decode function which releases legacy VGA decodes. VGA device 02:00.0 (VGA2) is any VGA device. VGA1 user locks VGA resources triggering first_use callback of set_vga_decoded, clearing "decode" and "owns" of legacy resources on VGA1. VGA1 user unlocks VGA resources. VGA2 user locks VGA resources, which skips VGA1 as conflicting as it does not "own" legacy resources, although VGA routing is still enabled for the VGA1 bridge. VGA routing is enabled on VGA2 bridge. VGA2 may or may not receive VGA transactions depending on the bus priority of VGA1 vs VGA2 bridge. To resolve this, we need to allow devices to "own" resources that they do not "decode". This way we can track bus ownership of VGA. When a device decodes VGA, it only means that we must update the command bits in cases where the conflicting device is on the same bus. Signed-off-by:
Alex Williamson <alex.williamson@redhat.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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git://people.freedesktop.org/~dvdhrm/linuxDave Airlie authored
* 'drm-next' of git://people.freedesktop.org/~dvdhrm/linux: drm/omap: remove null test before kfree drm/bochs: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN drm/ttm: recognize ARM arch in ioprot handler drm: enable render-nodes by default drm/ttm: remove declaration of ttm_tt_cache_flush drm/gem: remove misleading gfp parameter to get_pages() drm/omap: use __GFP_DMA32 for shmem-backed gem drm/i915: use shmem helpers if possible Conflicts: drivers/gpu/drm/drm_stub.c
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git://anongit.freedesktop.org/drm-intelDave Airlie authored
misc core patches picked up by Daniel and Jani. * tag 'topic/core-stuff-2014-06-30' of git://anongit.freedesktop.org/drm-intel: drm/fb-helper: Remove unnecessary list empty check in drm_fb_helper_debug_enter() drm/fb-helper: Redundant info->fix.type_aux setting in drm_fb_helper_fill_fix() drm/debugfs: add an "edid_override" file per connector drm/debugfs: add a "force" file per connector drm: add register and unregister functions for connectors drm: fix uninitialized acquire_ctx fields (v2) drm: Driver-specific ioctls range from 0x40 to 0x9f drm: Don't export internal module variables
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git://people.freedesktop.org/~thomash/linuxDave Airlie authored
Pull request of 2014-07-04 * tag 'vmwgfx-next-2014-07-04' of git://people.freedesktop.org/~thomash/linux: drm/vmwgfx: Fix compat shader namespace
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- 07 Jul, 2014 7 commits
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Fabian Frederick authored
Fix checkpatch warning: WARNING: kfree(NULL) is safe this check is probably not required Cc: David Airlie <airlied@linux.ie> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
David Herrmann <dh.herrmann@gmail.com>
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Fabian Frederick authored
use mm.h definition Signed-off-by:
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Lucas Stach authored
Nouveau can now be used on ARM, so add an ioprot handler for this architecture. Signed-off-by:
Lucas Stach <dev@lynxeye.de> Signed-off-by:
Alexandre Courbot <acourbot@nvidia.com> Signed-off-by:
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David Herrmann authored
We introduced render-nodes about 1/2 year ago and no problems showed up. Remove the drm_rnodes argument and enable them by default now. Acked-by:
Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Alexandre Courbot authored
ttm_tt_cache_flush's implementation was removed in 2009 by commit c9c97b8c, but its declaration has been hiding in ttm_bo_driver.h since then. It has been surviving in the dark for too long now ; give it the mercy blow. Reviewed-by:
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David Herrmann authored
drm_gem_get_pages() currently allows passing a 'gfp' parameter that is passed to shmem combined with mapping_gfp_mask(). Given that the default mapping_gfp_mask() is GFP_HIGHUSER, it is _very_ unlikely that anyone will ever make use of that parameter. In fact, all drivers currently pass redundant flags or 0. This patch removes the 'gfp' parameter. The only reason to keep it is to remove flags like __GFP_WAIT. But in its current form, it can only be used to add flags. So to remove __GFP_WAIT, you'd have to drop it from the mapping_gfp_mask, which again is stupid as this mask is used by shmem-core for other allocations, too. If any driver ever requires that parameter, we can introduce a new helper that takes the raw 'gfp' parameter. The caller'd be responsible to combine it with mapping_gfp_mask() in a suitable way. The current drm_gem_get_pages() helper would then simply use mapping_gfp_mask() and call the new helper. This is what shmem_read_mapping_pages{_gfp,} does right now. Moreover, the gfp-zone flag-usage is not obvious: If you pass a modified zone, shmem core will WARN() or even BUG(). In other words, the following must be true for 'gfp' passed to shmem_read_mapping_pages_gfp(): gfp_zone(mapping_gfp_mask(mapping)) == gfp_zone(gfp) Add a comment to drm_gem_read_pages() explaining that constraint. Signed-off-by: -
David Herrmann authored
OMAP requires bo-pages to be in the DMA32 zone. Explicitly request this by setting __GFP_DMA32 as mapping-gfp-mask during shmem initialization. This drops HIGHMEM from the gfp-mask and uses DMA32 instead. shmem-core takes care to relocate pages during swap-in in case they have been loaded into the wrong zone. It is _not_ possible to pass __GFP_DMA32 to shmem_read_mapping_page_gfp() as the page might have already been swapped-in at that time. The zone-mask must be set during initialization and be kept constant for now. Remove the now superfluous TODO in omap_gem.c. Reviewed-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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- 06 Jul, 2014 2 commits
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Linus Torvalds authored
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git://git.secretlab.ca/git/linuxLinus Torvalds authored
Pull devicetree bugfix from Grant Likely: "Important bug fix for parsing 64-bit addresses on 32-bit platforms. Without this patch the kernel will try to use memory ranges that cannot be reached" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: of: Check for phys_addr_t overflows in early_init_dt_add_memory_arch
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