- 15 Nov, 2016 7 commits
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Daniel Vetter authored
Would be great if everony could add $ make DOCBOOKS="" htmldocs to their build scripts to catch these. 0day should also report them, not sure why it failed to spot this. Fixes: b42fe9ca ("drm/i915: Split out i915_vma.c") Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114115825.22050-3-daniel.vetter@ffwll.ch
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Daniel Vetter authored
Just code movement, doc cleanup will follow up later. v2: Keep all the copyright notices. Reviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161114115825.22050-2-daniel.vetter@ffwll.ch
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Marek Vasut authored
Add missing forward declaration for struct drm_plane and drm_plane_state, which causes the following warning in the VC4 driver (can be replicated by building using bcm2835_defconfig): In file included from drivers/gpu/drm/vc4/vc4_drv.c:18:0: include/drm/drm_fb_cma_helper.h:45:13: warning: ‘struct drm_plane_state’ declared inside parameter list will not be visible outside of this definition or declaration struct drm_plane_state *state); ^~~~~~~~~~~~~~~ include/drm/drm_fb_cma_helper.h:44:34: warning: ‘struct drm_plane’ declared inside parameter list will not be visible outside of this definition or declaration int drm_fb_cma_prepare_fb(struct drm_plane *plane, Signed-off-by:Marek Vasut <marex@denx.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by:
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Dan Carpenter authored
drm_dev_alloc() never returns NULL, it only returns error pointers on error. Fixes: 0a886f59 ("drm: zte: add initial vou drm driver") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Rob Clark authored
kbuild spotted this error, with drm/msm patches that add a new modeset-lock in the driver and driver built as a module: ERROR: "crtc_ww_class" [drivers/gpu/drm/msm/msm.ko] undefined! Really the only reason for crtc_ww_class not being internal to drm_modeset_lock.c is that drm_modeset_lock_init() was static-inline (for no particularly good reason). Fix that, and move crtc_ww_class into drm_modeset_lock.c. Signed-off-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
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Chris Wilson authored
The current code is subject to a race where we may try to acquire a reference on a stale fence: [13703.335118] WARNING: CPU: 1 PID: 14975 at ./include/linux/kref.h:46 i915_gem_object_wait+0x1a3/0x1c0 [13703.335184] Modules linked in: [13703.335202] CPU: 1 PID: 14975 Comm: gem_concurrent_ Not tainted 4.9.0-rc4+ #26 [13703.335216] Hardware name: / , BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015 [13703.335233] ffffc90002f5bcc8 ffffffff812807de 0000000000000000 0000000000000000 [13703.335257] ffffc90002f5bd08 ffffffff81073811 0000002e80000000 ffff88026bf7c780 [13703.335279] 7fffffffffffffff 0000000000000001 ffff88027045a550 ffff88026bf7c780 [13703.335301] Call Trace: [13703.335316] [<ffffffff812807de>] dump_stack+0x4d/0x6f [13703.335331] [<ffffffff81073811>] __warn+0xc1/0xe0 [13703.335343] [<ffffffff810738e8>] warn_slowpath_null+0x18/0x20 [13703.335355] [<ffffffff813ac443>] i915_gem_object_wait+0x1a3/0x1c0 [13703.335367] [<ffffffff813ae8ec>] i915_gem_set_domain_ioctl+0xcc/0x330 [13703.335386] [<ffffffff813534ab>] drm_ioctl+0x1cb/0x410 [13703.335400] [<ffffffff813ae820>] ? i915_gem_obj_prepare_shmem_write+0x1d0/0x1d0 [13703.335416] [<ffffffff8135359b>] ? drm_ioctl+0x2bb/0x410 [13703.335429] [<ffffffff8117d32f>] do_vfs_ioctl+0x8f/0x5c0 [13703.335442] [<ffffffff8117d89c>] SyS_ioctl+0x3c/0x70 [13703.335456] [<ffffffff815a07a4>] entry_SYSCALL_64_fastpath+0x17/0x98 [13703.335558] ---[ end trace fd24176416ba6981 ]--- [13703.382778] general protection fault: 0000 [#1] SMP [13703.382802] Modules linked in: [13703.382816] CPU: 1 PID: 14967 Comm: gem_concurrent_ Tainted: G W 4.9.0-rc4+ #26 [13703.382828] Hardware name: / , BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015 [13703.382841] task: ffff880275458000 task.stack: ffffc90002f18000 [13703.382849] RIP: 0010:[<ffffffff813b3534>] [<ffffffff813b3534>] i915_gem_request_retire+0x2b4/0x320 [13703.382870] RSP: 0018:ffffc90002f1bbc8 EFLAGS: 00010293 [13703.382878] RAX: dead000000000200 RBX: ffff88026bf7dce8 RCX: dead000000000100 [13703.382887] RDX: dead000000000100 RSI: ffff88026bf7c930 RDI: ffff88026bf7dd00 [13703.382897] RBP: ffffc90002f1bbf8 R08: 00000000ffffffff R09: ffff88026b89a000 [13703.382905] R10: 0000000000000001 R11: ffff88026bbe8fe0 R12: ffff88026bf7c000 [13703.382913] R13: ffff880275af8000 R14: ffff88026bf7c180 R15: dead000000000200 [13703.382922] FS: 00007f89e787d740(0000) GS:ffff88027fd00000(0000) knlGS:0000000000000000 [13703.382934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [13703.382942] CR2: 00007f9053d2e000 CR3: 000000026d414000 CR4: 00000000001006e0 [13703.382951] Stack: [13703.382958] ffff880275413000 ffffc90002f1bde8 ffff880275af8000 ffff880274e8a600 [13703.382976] ffff880276a06000 ffffc90002f1bde8 ffffc90002f1bc38 ffffffff813b48c5 [13703.382995] ffffc90002f1bc00 ffffc90002f1bde8 ffff88026972a440 0000000000000000 [13703.383021] Call Trace: [13703.383032] [<ffffffff813b48c5>] i915_gem_request_alloc+0xa5/0x350 [13703.383043] [<ffffffff813a17c3>] i915_gem_do_execbuffer.isra.41+0x7b3/0x18b0 [13703.383055] [<ffffffff813b144c>] ? i915_gem_object_get_sg+0x25c/0x2b0 [13703.383065] [<ffffffff813b1d4d>] ? i915_gem_object_get_page+0x1d/0x50 [13703.383076] [<ffffffff813b28cc>] ? i915_gem_pwrite_ioctl+0x66c/0x6d0 [13703.383086] [<ffffffff813a2c25>] i915_gem_execbuffer2+0x95/0x1e0 [13703.383096] [<ffffffff813534ab>] drm_ioctl+0x1cb/0x410 [13703.383105] [<ffffffff813a2b90>] ? i915_gem_execbuffer+0x2d0/0x2d0 [13703.383117] [<ffffffff810c3df0>] ? hrtimer_start_range_ns+0x1a0/0x310 [13703.383128] [<ffffffff8117d32f>] do_vfs_ioctl+0x8f/0x5c0 [13703.383140] [<ffffffff810c60e8>] ? SyS_timer_settime+0x118/0x1a0 [13703.383150] [<ffffffff8117d89c>] SyS_ioctl+0x3c/0x70 [13703.383162] [<ffffffff815a07a4>] entry_SYSCALL_64_fastpath+0x17/0x98 [13703.383172] Code: 49 39 c6 48 8d 70 e8 48 8d 5f e8 75 16 eb 47 48 8d 43 18 48 8b 53 18 48 89 de 49 39 c6 48 8d 5a e8 74 33 48 8b 56 08 48 8b 46 10 <48> 89 42 08 48 89 10 f6 46 38 01 48 89 4e 08 4c 89 7e 10 74 cf [13703.383557] RIP [<ffffffff813b3534>] i915_gem_request_retire+0x2b4/0x320 [13703.383570] RSP <ffffc90002f1bbc8> [13703.383586] ---[ end trace fd24176416ba6982 ]--- This is fixed by using the kref_get_unless_zero() as a full memory barrier to validate the fence is still the current exclusive fence before returning it back to the caller. (Note the fix only requires using dma_fence_get_rcu() and correct handling, but we may as well use the helper rather than inline equivalent code.) Note: Issue can only be hit with the i915 driver. Signed-off-by:
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Marek Vasut authored
Remove the common code from the driver and use the drm_fb_cma_prepare_fb() helper instead. Moveover, call the helper from prepare_fb() plane hook . Signed-off-by:
Lucas Stach <l.stach@pengutronix.de> Signed-off-by:
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- 14 Nov, 2016 20 commits
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Marek Vasut authored
Add new drm_fb_cma_prepare_fb() helper function extracted from the imx-drm driver. This function checks if the plane has DMABUF attached to it, extracts the exclusive fence from it and attaches it to the plane state for the atomic helper to wait on it. Signed-off-by:
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Stefan Christ authored
This refactoring leads to real functional changes in the driver. Now the struct psbfb_ops implements two additional members: .fb_setcmap = drm_fb_helper_setcmap, .fb_pan_display = drm_fb_helper_pan_display, and the struct psbfb_roll_ops implements one additional member: .fb_setcmap = drm_fb_helper_setcmap, and the struct psbfb_unaccel_ops implements two additional members: .fb_setcmap = drm_fb_helper_setcmap, .fb_pan_display = drm_fb_helper_pan_display, These changes are not tested. Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by:Stefan Christ <contact@stefanchrist.eu> Signed-off-by:
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Stefan Christ authored
Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
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Stefan Christ authored
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by:
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Stefan Christ authored
This patch removes a TODO comment in the code. I do not know whether it is still relevant. Cc: David Airlie <airlied@linux.ie> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by:
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Stefan Christ authored
Cc: Rob Clark <robdclark@gmail.com> Signed-off-by:
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Stefan Christ authored
Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Stefan Christ authored
Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by:
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Stefan Christ authored
Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by:
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Stefan Christ authored
Cc: Mark Yao <mark.yao@rock-chips.com> Signed-off-by:
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Stefan Christ authored
This patch removes a TODO comment in the code. I do not know whether it is still relevant. Cc: Dave Airlie <airlied@redhat.com> Signed-off-by:
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Stefan Christ authored
Cc: Ben Skeggs <bskeggs@redhat.com> Signed-off-by:
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Stefan Christ authored
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> Acked-by:
Inki Dae <inki.dae@samsung.com> Signed-off-by:
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Stefan Christ authored
Cc: David Airlie <airlied@linux.ie> Signed-off-by:
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Stefan Christ authored
Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by:
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Stefan Christ authored
Cc: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Stefan Christ authored
Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Signed-off-by:
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Stefan Christ authored
Add additional members fb_debug_enter and fb_debug_leave to helper define. They are shared by all fb_ops implementations. Suggested-by:
Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
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Stefan Christ authored
A drm driver that is implementing fb_debug_enter and fb_debug_leave in struct fb_ops with drm fb helper functions drm_fb_helper_debug_enter and drm_fb_helper_debug_leave must also implement the callback 'mode_set_base_atomic' in struct drm_crtc_helper_funcs. See Documentation/DocBook/kgdb.tmpl. The current implementation will segfault when 'mode_set_base_atomic' is a NULL pointer. Before this patch at least the drm drivers armada, ast, qxl, udl and virtio do not have a 'mode_set_base_atomic' implementation but using drm_fb_helper_debug_(enter|leave). So these drivers may segfault when callbacks fb_debug_(enter|leave) are called. Avoid the issue by just checking for NULL pointers. So all drivers can unconditionally implement fb_debug_(enter|leave) with the drm_fb_helper functions. If callback 'mode_set_base_atomic' is not implemented, the code in drm_fb_helper_debug_(enter|leave) does effectively nothing. Signed-off-by: -
Andrew Donnellan authored
In the err_free_vram and err_release_fbi error paths in astfb_create(), we attempt to free afbdev->sysram. The only jumps to these error paths occur before we assign afbdev->sysram = sysram. Free sysram instead. Signed-off-by:
Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by:
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- 13 Nov, 2016 1 commit
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Julia Lawall authored
These component_ops structures are only used as the second argument to component_add and component_del, which are declared as const, so the structures can be declared as const as well. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct component_ops i@p = { ... }; @ok1@ identifier r.i; expression e1; position p; @@ component_add(e1,&i@p) @ok2@ identifier r.i; expression e1; position p; @@ component_del(e1, &i@p) @bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; struct component_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct component_ops i = { ... }; // </smpl> The result of the size command before the change is (arm): text data bss dec hex filename 5266 236 8 5510 1586 sun4i_backend.o 6393 236 8 6637 19ed sun4i_tcon.o 3700 368 8 4076 fec sun4i_tv.o 1668 108 0 1776 6f0 sun6i_drc.o and after the change: text data bss dec hex filename 5274 228 8 5510 1586 sun4i_backend.o 6401 228 8 6637 19ed sun4i_tcon.o 3708 360 8 4076 fec sun4i_tv.o 1676 100 0 1776 6f0 sun6i_drc.o Signed-off-by:
Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by:
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- 12 Nov, 2016 1 commit
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Eric Engestrom authored
The function's behaviour was changed in 90844f00, without changing its signature, causing people to keep using it the old way without realising they were now leaking memory. Rob Clark also noticed it was also allocating GFP_KERNEL memory in atomic contexts, breaking them. Instead of having to allocate GFP_ATOMIC memory and fixing the callers to make them cleanup the memory afterwards, let's change the function's signature by having the caller take care of the memory and passing it to the function. The new parameter is a single-field struct in order to enforce the size of its buffer and help callers to correctly manage their memory. Fixes: 90844f00 ("drm: make drm_get_format_name thread-safe") Cc: Rob Clark <robdclark@gmail.com> Cc: Christian König <christian.koenig@amd.com> Acked-by:
Christian König <christian.koenig@amd.com> Acked-by:
Jani Nikula <jani.nikula@intel.com> Suggested-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:
Eric Engestrom <eric@engestrom.ch> Signed-off-by:
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- 11 Nov, 2016 3 commits
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Joonas Lahtinen authored
Add 3 missing mutex_destroy to drm_dev_init teardown and drm_dev_release. v2: - Also include drm_dev_release Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by:
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Dave Airlie authored
Merge tag 'zxdrm-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next ZTE zxdrm driver support for 4.10: This is the initial ZTE VOU display controller DRM/KMS driver. There are still some features to be added, like overlay plane, scaling, and more output devices support. But it's already useful with dual CRTCs and HDMI display working. [airlied: use drm_format_plane_cpp instead of legacy api] * tag 'zxdrm-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: MAINTAINERS: add an entry for ZTE ZX DRM driver drm: zte: add initial vou drm driver dt-bindings: add bindings doc for ZTE VOU display controller
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git://linux-arm.org/linux-ldDave Airlie authored
Here is the list of fixes that I have for drm/mali-dp. They've been on the mailing lists for a while and merged into linux-next for a few weeks, but due to holiday and travel to Linux Plumbers I did not send the pull request earlier. I don't know if these patches can be pulled into v4.9 still (they will conflict with Ville Syrjälä's cleanup of DRM_ROTATE series that is already in drm-next), but if you do that would be great. * 'for-upstream/mali-dp' of git://linux-arm.org/linux-ld: drm: mali-dp: Clear CVAL when leaving config mode drm/arm: mark symbols static where possible drm: mali-dp: Add support for setting plane's rotation property from userspace. drm: mali-dp: Don't set DRM_PLANE_COMMIT_ACTIVE_ONLY drm: mali-dp: Store internal format and n_planes in plane state drm: mali-dp: Enable alpha blending drm: mali-dp: Refactor plane initialisation arm: mali-dp: Extract mode_config cleanup into malidp_fini drm: mali-dp: Add pitch alignment check for planes drm: mali-dp: Add pitch alignment check function drm: mali-dp: Set the drm->irq_enabled flag to match driver's state. drm: mali-dp: Clear the config_valid flag before using it in wait_event.
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- 10 Nov, 2016 4 commits
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git://git.pengutronix.de/git/pza/linuxDave Airlie authored
dw-hdmi i2c master controller - add support for the HDMI I2C master controller, for boards that can have their DDC pins connected only to the HDMI TX directly. * tag 'dw-hdmi-next-2016-09-19' of git://git.pengutronix.de/git/pza/linux: drm: bridge/dw_hdmi: add dw hdmi i2c bus adapter support drm: dw_hdmi: use of_get_i2c_adapter_by_node interface
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git://git.pengutronix.de/git/pza/linuxDave Airlie authored
imx-drm plane update cleanup, YUV formats - request modeset if plane offsets changed, only the plane base address can be changed without disabling the plane IDMAC channel. - cleanup of plane atomic_update - remove unused ipu_cpmem_set_yuv_planar function - support YUV 4:4:4, 4:2:2, NV12 and NV16 plane formats - not only mask interrupts during irq init, also clear them - remove a legacy check from imx-ldb - add support to set the CSI downsizing bits - silence an obnoxious warning during modeset * tag 'imx-drm-next-2016-11-10' of git://git.pengutronix.de/git/pza/linux: gpu: ipu-di: silence videomode logspam gpu: ipu-v3: add ipu_csi_set_downsize drm/imx: imx-ldb: remove unnecessary double disable check gpu: ipu-v3: initially clear all interrupts drm/imx: ipuv3-plane: add support for YUV 4:2:2 and 4:4:4, NV12, and NV16 formats gpu: ipu-v3: add YUV 4:4:4 support gpu: ipu-cpmem: remove unused ipu_cpmem_set_yuv_planar function drm/imx: ipuv3-plane: let drm_plane_state_to_ubo/vbo handle chroma subsampling other than 4:2:0 drm/imx: ipuv3-plane: merge ipu_plane_atomic_set_base into atomic_update drm/imx: ipuv3-plane: request modeset if plane offsets changed
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git://anongit.freedesktop.org/drm-intelDave Airlie authored
- better atomic state debugging from Rob - fence prep from gustavo - sumits flushed out his backlog of pending dma-buf/fence patches from various people - drm_mm leak debugging plus trying to appease Kconfig (Chris) - a few misc things all over * tag 'topic/drm-misc-2016-11-10' of git://anongit.freedesktop.org/drm-intel: (35 commits) drm: Make DRM_DEBUG_MM depend on STACKTRACE_SUPPORT drm/i915: Restrict DRM_DEBUG_MM automatic selection drm: Restrict stackdepot usage to builtin drm.ko drm/msm: module param to dump state on error irq drm/msm/mdp5: add atomic_print_state support drm/atomic: add debugfs file to dump out atomic state drm/atomic: add new drm_debug bit to dump atomic state drm: add helpers to go from plane state to drm_rect drm: add helper for printing to log or seq_file drm: helper macros to print composite types reservation: revert "wait only with non-zero timeout specified (v3)" v2 drm/ttm: fix ttm_bo_wait dma-buf/fence: revert "don't wait when specified timeout is zero" (v2) dma-buf/fence: make timeout handling in fence_default_wait consistent (v2) drm/amdgpu: add the interface of waiting multiple fences (v4) dma-buf: return index of the first signaled fence (v2) MAINTAINERS: update Sync File Framework files dma-buf/sw_sync: put fence reference from the fence creation dma-buf/sw_sync: mark sync_timeline_create() static drm: Add stackdepot include for DRM_DEBUG_MM ...
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git://anongit.freedesktop.org/git/drm-intelDave Airlie authored
- gpu idling rework for s/r (Imre) - vlv mappable scanout fix - speed up probing in resume (Lyude) - dp audio workarounds for gen9 (Dhinakaran) - more conversion to using dev_priv internally (Ville) - more gen9+ wm fixes and cleanups (Maarten) - shrinker cleanup&fixes (Chris) - reorg plane init code (Ville) - implement support for multiple timelines (prep work for scheduler) from Chris and all - untangle dev->struct_mutex locking as prep for multiple timelines (Chris) - refactor bxt phy code and collect it all in intel_dpio_phy.c (Ander) - another gvt with bugfixes all over from Zhenyu - piles of lspcon fixes from Imre - 90/270 rotation fixes (Ville) - guc log buffer support (Akash+Sagar) - fbc fixes from Paulo - untangle rpm vs. tiling-fences/mmaps (Chris) - fix atomic commit to wait on the right fences (Daniel Stone) * tag 'drm-intel-next-2016-11-08' of git://anongit.freedesktop.org/git/drm-intel: (181 commits) drm/i915: Update DRIVER_DATE to 20161108 drm/i915: Mark CPU cache as dirty when used for rendering drm/i915: Add assert for no pending GPU requests during suspend/resume in LR mode drm/i915: Make sure engines are idle during GPU idling in LR mode drm/i915: Avoid early GPU idling due to race with new request drm/i915: Avoid early GPU idling due to already pending idle work drm/i915: Limit Valleyview and earlier to only using mappable scanout drm/i915: Round tile chunks up for constructing partial VMAs drm/i915: Remove the vma from the object list upon close drm/i915: Reinit polling before hpd when resuming drm/i915: Remove redundant reprobe in i915_drm_resume drm/i915/dp: Extend BDW DP audio workaround to GEN9 platforms drm/i915/dp: BDW cdclk fix for DP audio drm/i915: Fix pages pin counting around swizzle quirk drm/i915: Fix test on inputs for vma_compare() drm/i915/guc: Cache the client mapping drm/i915: Tidy slab cache allocations drm/i915: Introduce HAS_64BIT_RELOC drm/i915: Show the execlist queue in debugfs/i915_engine_info drm/i915: Unify global_list into global_link ...
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- 09 Nov, 2016 4 commits
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Chris Wilson authored
0day continues to complain about trying to save a stacktrace for the users of the drm_mm range allocator. This time, it is that m68k has no save_stack_trace(), which is apparently guarded by STACKTRACE_SUPPORT. Make it depend so! Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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Lucas Stach authored
Adapting the videomode to the hardware constraints is something that can and must happen during normal operation and isn't something that the user can avoid. So printing a warning each time it happens isn't helpful. Demote this message to the debug level. Signed-off-by:
Philipp Zabel <p.zabel@pengutronix.de>
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Chris Wilson authored
DRM_DEBUG_MM is only valid if the DRM.ko is builtin as currently depot_save_stack is not exported. Fixes: 5c7fcf2d ("drm/i915: Enable drm_mm debug when enabling DRM_I915_DEBUG") Signed-off-by:
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Chris Wilson authored
I misread the kbuild result thinking that we had missed the include (which we had for completeness anyway), what kbuild was actually warning me about was that depot_save_stack was not exported. Temporarily fix this by only selecting STACKDEPOT iff drm.ko is builtin Reported-by:
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