Ben Skeggs [Fri, 19 Jun 2020 22:04:01 +0000 (08:04 +1000)]
drm/nouveau/kms/nv50-: convert wndw sema_clr() to new push macros
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Fri, 19 Jun 2020 21:57:12 +0000 (07:57 +1000)]
drm/nouveau/kms/nv50-: convert wndw sema_set() to new push macros
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Sun, 21 Jun 2020 00:22:35 +0000 (10:22 +1000)]
drm/nouveau/kms/nv50-: convert wimm update() to new push macros
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Sun, 21 Jun 2020 00:19:40 +0000 (10:19 +1000)]
drm/nouveau/kms/nv50-: convert wimm point() to new push macros
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Fri, 19 Jun 2020 21:52:26 +0000 (07:52 +1000)]
drm/nouveau/kms/nv50-: wrap existing command submission in nvif_push interface
This commit pulls in a bunch of new push buffer macros which are able to
support NVIDIA's class headers, and provide more useful debug output and
error checking (compile-time, where possible) than we had previously.
Will incrementally transition each function over to the unified interfaces.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 29 Jun 2020 10:49:15 +0000 (20:49 +1000)]
drm/nouveau/nvif: add support for object-level debug output
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 8 Jun 2020 04:47:37 +0000 (14:47 +1000)]
drm/nouveau/nvif: give every notify object a human-readable name
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 04:03:20 +0000 (14:03 +1000)]
drm/nouveau/nvif: give every disp object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 04:01:57 +0000 (14:01 +1000)]
drm/nouveau/nvif: give every usermode object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 03:59:39 +0000 (13:59 +1000)]
drm/nouveau/nvif: give every vmm object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 03:56:55 +0000 (13:56 +1000)]
drm/nouveau/nvif: give every mem object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 03:51:38 +0000 (13:51 +1000)]
drm/nouveau/nvif: give every mmu object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 03:49:05 +0000 (13:49 +1000)]
drm/nouveau/nvif: give every device object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Sun, 29 Mar 2020 23:51:33 +0000 (09:51 +1000)]
drm/nouveau/nvif: give every object a human-readable identifier
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Mon, 30 Mar 2020 03:45:33 +0000 (13:45 +1000)]
drm/nouveau/nvif: rename client ctor/dtor
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Ben Skeggs [Fri, 24 Jul 2020 00:13:21 +0000 (10:13 +1000)]
drm/nouveau/kms/tu102: set NVC57D_HEAD_SET_HEAD_USAGE_BOUNDS_UPSCALING_ALLOWED to TRUE
Fixes issues when switching between scaling modes.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Gustavo A. R. Silva [Tue, 7 Jul 2020 17:36:28 +0000 (12:36 -0500)]
drm/nouveau: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ralph Campbell [Tue, 30 Jun 2020 19:57:35 +0000 (12:57 -0700)]
drm/nouveau/vmm/gp100-: fix mapping 2MB sysmem pages
The nvif_object_ioctl() method NVIF_VMM_V0_PFNMAP wasn't correctly
setting the hardware specific GPU page table entries for 2MB sized
pages. Fix this by adding functions to set and clear PD0 GPU page
table entries.
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ralph Campbell [Mon, 22 Jun 2020 23:38:54 +0000 (16:38 -0700)]
drm/nouveau/mmu: make nvkm_vmm_ctor() static
The function nvkm_vmm_ctor() is not called outside of the file defining
it, so make it static.
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Aditya Pakki [Sun, 14 Jun 2020 01:48:37 +0000 (20:48 -0500)]
drm/nouveau: fix reference count leak in nouveau_debugfs_strap_peek
nouveau_debugfs_strap_peek() calls pm_runtime_get_sync() that
increments the reference count. In case of failure, decrement the
ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Aditya Pakki [Sun, 14 Jun 2020 01:22:23 +0000 (20:22 -0500)]
drm/nouveau: Fix reference count leak in nouveau_connector_detect
nouveau_connector_detect() calls pm_runtime_get_sync and in turn
increments the reference count. In case of failure, decrement the
ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Aditya Pakki [Sun, 14 Jun 2020 01:29:18 +0000 (20:29 -0500)]
drm/nouveau: fix reference count leak in nv50_disp_atomic_commit
nv50_disp_atomic_commit() calls calls pm_runtime_get_sync and in turn
increments the reference count. In case of failure, decrement the
ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Aditya Pakki [Sun, 14 Jun 2020 01:41:56 +0000 (20:41 -0500)]
drm/nouveau: fix multiple instances of reference count leaks
On calling pm_runtime_get_sync() the reference count of the device
is incremented. In case of failure, decrement the
ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Aditya Pakki [Sun, 14 Jun 2020 01:33:42 +0000 (20:33 -0500)]
drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
nouveau_fbcon_open() calls calls pm_runtime_get_sync() that
increments the reference count. In case of failure, decrement the
ref count before returning the error.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 00:41:49 +0000 (10:41 +1000)]
drm/nouveau/sec2/gp102: allow module to load when LSFW is missing
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 01:30:04 +0000 (11:30 +1000)]
drm/nouveau/gr/gm200-: explicitly handle nofw
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 05:26:20 +0000 (15:26 +1000)]
drm/nouveau/pmu/gm200-: explicitly handle nofw
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 05:15:58 +0000 (15:15 +1000)]
drm/nouveau/pmu/gm20x: don't pretend we support loading with our custom FW
It technically loads, and runs, but is ultimately pointless outside of
a very narrow window (fanless systems where one wants to attempt using
the, broken for a lot of gm20x, memory reclocking code).
It's also potentially dangerous to override the VBIOS-provided "Pre-OS"
PMU, which would be responsible for fan control otherwise.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 04:57:31 +0000 (14:57 +1000)]
drm/nouveau/acr: store a mask of LS falcons the controlling LSFW can bootstrap
This will prevent some pain with broken firmware trees, as under some
circumstances the HSFW can fail and leave the GPU in a state we don't
know how to recover from.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 04:19:35 +0000 (14:19 +1000)]
drm/nouveau/acr: store a mask of LS falcons the HSFW can bootstrap
This will prevent reloading of HS FW where it's pointless, and bypass
hitting some timeouts.
Not a situation one should generally hit, but can occur with a messed
up firmware installation.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 00:47:07 +0000 (10:47 +1000)]
drm/nouveau/acr: allow module to load when HSFW(s) are missing
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 01:38:47 +0000 (11:38 +1000)]
drm/nouveau/acr: refuse to load LSFW if HSFW is missing
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Tue, 16 Jun 2020 01:14:41 +0000 (11:14 +1000)]
drm/nouveau/core: drop error message when no compatible FW found
This is less than useful with some subdevs having _nofw variants in their
FWIF lists - it's cleaner to handle them all in the same way.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Wed, 10 Jun 2020 04:46:01 +0000 (14:46 +1000)]
drm/nouveau/mmu/gp100-: enable mmu invalidate depth optimisation
This causes us to invalidate MMU only at the level we made modifications -
ie: if we've only modified PTEs, there's no need to have MMU dump the PDs
it's fetched into L2.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Timur Tabi [Tue, 9 Jun 2020 12:52:04 +0000 (07:52 -0500)]
drm/nouveau/nvfw: firmware structures should begin with nvfw_
Rename all structures that are used directly by firmware to have a nvfw_
prefix.
This makes it easier to identify structures that have a fixed, specific
layout. A future patch will define several more such structures, so it's
important to be consistent now.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Timur Tabi [Tue, 9 Jun 2020 12:52:03 +0000 (07:52 -0500)]
drm/nouveau/tmr: fix nvkm_usec/nvkm_msec definitions
nvkm_timer_wait_init() takes a u64 as a duration parameter, but the
expression "(m) * 1000" will be promoted only to a 32-bit integer,
if 'm' is also an integer. Changing the 1000 to 1000ULL ensures that
the expression will be 64 bits.
This change currently has no effect as there are no callers of
nvkm_msec() that exceed 2000ms.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 23:55:19 +0000 (09:55 +1000)]
drm/nouveau/therm/gt215: make gt215_therm_init static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 23:54:26 +0000 (09:54 +1000)]
drm/nouveau/mmu: make a couple of functions static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 23:53:57 +0000 (09:53 +1000)]
drm/nouveau/mc/gp10b: make gp10b_mc_init static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 23:35:55 +0000 (09:35 +1000)]
drm/nouveau/nvfw/acr: make lsb_header_tail_dump static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 23:34:08 +0000 (09:34 +1000)]
drm/nouveau/gr/gf100-: make some functions static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Ben Skeggs [Fri, 29 May 2020 05:14:49 +0000 (15:14 +1000)]
drm/nouveau/disp/gm200-: remove 'head' parameter from nvkm_ior_func.hdmi.scdc()
It's no longer required.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Dave Airlie [Thu, 23 Jul 2020 23:41:48 +0000 (09:41 +1000)]
Merge tag 'mediatek-drm-next-5.9' of https://git./linux/kernel/git/chunkuang.hu/linux into drm-next
Mediatek DRM Next for Linux 5.9
This include converting mtk_dsi to drm_bridge API.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716233102.566-1-chunkuang.hu@kernel.org
Dave Airlie [Thu, 23 Jul 2020 23:38:44 +0000 (09:38 +1000)]
Merge tag 'drm/tegra/for-5.9-rc1' of ssh://git.freedesktop.org/git/tegra/linux into drm-next
drm/tegra: Changes for v5.9-rc1
This set of patches contains a few preparatory patches to enable video
capture support from external camera modules. This is a dependency for
the V4L2 driver patches that will likely be merged in v5.9 or v5.10.
On top of that there are a couple of fixes across the board as well as
some improvements.
From a feature point of view this also adds support for horizontal
reflection and 180° rotation of planes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200717162011.1661788-1-thierry.reding@gmail.com
Dave Airlie [Thu, 23 Jul 2020 22:28:09 +0000 (08:28 +1000)]
Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Thu, 23 Jul 2020 05:38:10 +0000 (15:38 +1000)]
Merge tag 'amd-drm-next-5.9-2020-07-17' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-next-5.9-2020-07-17:
amdgpu:
- SI UVD/VCE clock support
- Updates for Sienna Cichlid
- Expose drm rotation property
- Atomfirmware updates for renoir
- updates to GPUVM hub handling for different register layouts
- swSMU restructuring and cleanups
- RAS fixes
- DC fixes
- mode1 reset support for Sienna Cichlid
- Add support for Navy Flounder GPUs
amdkfd:
- Add SMI events watch interface
UAPI:
- Add amdkfd SMI events watch interface
Userspace which uses this interface:
https://github.com/RadeonOpenCompute/rocm_smi_lib/commit/
2235ede34c456f1c7d3490f6fe74825d442d272e
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200717132022.4014-1-alexander.deucher@amd.com
Dave Airlie [Thu, 23 Jul 2020 05:31:29 +0000 (15:31 +1000)]
Merge tag 'drm-xilinx-dpsub-
20200718' of git://linuxtv.org/pinchartl/media into drm-next
Xilinx ZynqMP DisplayPort Subsystem driver
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200718001755.GA5962@pendragon.ideasonboard.com
Dave Airlie [Thu, 23 Jul 2020 05:28:05 +0000 (15:28 +1000)]
Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
Nothing too exciting:
- a cleanup of our clock handling and improved error handling in this
area from Lubomir
- conversion to pin_user_pages for long page references from John
- fixed PM runtime API error handling from Navid
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/d9e2660d71051bf3cab8aa7afc9f62102ac910d9.camel@pengutronix.de
Dave Airlie [Thu, 23 Jul 2020 05:21:32 +0000 (15:21 +1000)]
Merge tag 'imx-drm-next-2020-07-20' of git://git.pengutronix.de/pza/linux into drm-next
drm/imx: error path fixes and cleanups
- Fix use after free issue in component bind error path by keeping
memory allocated as long as the driver is bound. This will be replaced
with drm managed memory in the next round.
- Fix bus_flags overriding logic in parallel-display.
- Disable regulator in imx-tve bind error path.
- Drop unnecessary best_encoder callback.
- Remove an unused enum in imx-ldb.
- Bail out early on missing panel or bridge in parallel-display to speed
up -EPROBE_DEFER path.
- Disable both LDB channels in split mode.
- Restore RGB32, BGR32 format support.
- Fix tiled image conversion in case of out of order interrupts.
- Remove a superfluous error message in imx-tve.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/ac4452eb3a989bf5d85b65fd30840a21f15ec301.camel@pengutronix.de
Wei Yongjun [Wed, 22 Jul 2020 16:17:19 +0000 (16:17 +0000)]
dma-fence: Make symbol 'dma_fence_lockdep_map' static
The sparse tool complains as follows:
drivers/dma-buf/dma-fence.c:249:25: warning:
symbol 'dma_fence_lockdep_map' was not declared. Should it be static?
This variable is not used outside of dma-fence.c, so this commit
marks it static.
Fixes:
5fbff813a4a3 ("dma-fence: basic lockdep annotations")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/dc5e3b19-2087-44ab-a28c-ddb38ff8861a@email.android.com
Dave Airlie [Thu, 23 Jul 2020 04:01:37 +0000 (14:01 +1000)]
Merge tag 'drm-misc-next-2020-07-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.9:
UAPI Changes:
Cross-subsystem Changes:
- Convert panel-dsi-cm and ingenic bindings to YAML.
- Add lockdep annotations for dma-fence. \o/
- Describe why indefinite fences are a bad idea
- Update binding for rocktech jh057n00900.
Core Changes:
- Add vblank workers.
- Use spin_(un)lock_irq instead of the irqsave/restore variants in crtc code.
- Add managed vram helpers.
- Convert more logging to drm functions.
- Replace more http links with https in core and drivers.
- Cleanup to ttm iomem functions and implementation.
- Remove TTM CMA memtype as it doesn't work correctly.
- Remove TTM_MEMTYPE_FLAG_MAPPABLE for many drivers that have no
unmappable memory resources.
Driver Changes:
- Add CRC support to nouveau, using the new vblank workers.
- Dithering and atomic state fix for nouveau.
- Fixes for Frida FRD350H54004 panel.
- Add support for OSD mode (sprite planes), IPU (scaling) and multiple
panels/bridges to ingenic.
- Use managed vram helpers in ast.
- Assorted small fixes to ingenic, i810, mxsfb.
- Remove optional unused ttm dummy functions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d6bf269e-ccb2-8a7b-fdae-226e9e3f8274@linux.intel.com
Ondrej Jirman [Fri, 3 Jul 2020 11:47:17 +0000 (13:47 +0200)]
dt-binding: display: Allow a single port node on rocktech, jh057n00900
The display has one port. Allow it in the binding.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200703114717.2140832-3-megous@megous.com
Ondrej Jirman [Fri, 3 Jul 2020 11:47:16 +0000 (13:47 +0200)]
dt-bindings: display: Fix example in nwl-dsi.yaml
The example is now validated against rocktech,jh057n00900 schema
that was ported to yaml, and didn't validate with:
- '#address-cells', '#size-cells', 'port@0' do not match any of
the regexes: 'pinctrl-[0-9]+'
- 'vcc-supply' is a required property
- 'iovcc-supply' is a required property
- 'reset-gpios' is a required property
Fix it.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200703114717.2140832-2-megous@megous.com
Lyude Paul [Mon, 20 Jul 2020 19:07:36 +0000 (15:07 -0400)]
drm/vblank: Use spin_(un)lock_irq() in drm_crtc_queue_sequence_ioctl()
This is an ioctl callback, so we're guaranteed to have IRQs enabled when
calling this function. Use the plain _irq() variants of spin_(un)lock()
to make this more obvious.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720190736.180297-6-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Lyude Paul [Mon, 20 Jul 2020 19:07:35 +0000 (15:07 -0400)]
drm/vblank: Use spin_(un)lock_irq() in drm_queue_vblank_event()
This one's easy - we're already calling kzalloc(GFP_KERNEL) in this
function, so we must already be guaranteed to have IRQs enabled when
calling this. So, use the plain _irq() variants of spin_(un)lock() to
make this more obvious.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720190736.180297-5-lyude@redhat.com
Lyude Paul [Mon, 20 Jul 2020 19:07:34 +0000 (15:07 -0400)]
drm/vblank: Use spin_(un)lock_irq() in drm_legacy_vblank_post_modeset()
This function is only ever called from ioctl context, so we're
guaranteed to have interrupts enabled. Stop using the irqsave/irqrestore
variants of spin_(un)lock_irq() to make this more obvious.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720190736.180297-4-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Lyude Paul [Mon, 20 Jul 2020 19:07:33 +0000 (15:07 -0400)]
drm/vblank: Use spin_(un)lock_irq() in drm_crtc_vblank_on()
This is only called from:
* Atomic modesetting hooks
* Module probing routines
* Legacy modesetting hooks
All of which have IRQs enabled, so we can also get rid of
irqsave/restore here to make the IRQ context of this function more
obvious.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720190736.180297-3-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Lyude Paul [Mon, 20 Jul 2020 19:07:32 +0000 (15:07 -0400)]
drm/vblank: Use spin_(un)lock_irq() in drm_crtc_vblank_reset()
All of the drivers in the kernel tree only call this from one of the
following contexts:
* drm_crtc_funcs->reset
* During initial module load
Since both of these contexts are guaranteed to have interrupts enabled
beforehand, there's no need to use the irqsave/irqrestore variants of
spin_(un)lock(). So, fix this to make the irq context of this function
more obvious.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720190736.180297-2-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Christian König [Thu, 16 Jul 2020 11:46:05 +0000 (13:46 +0200)]
drm/qxl: stop using TTM_MEMTYPE_FLAG_MAPPABLE v2
The driver doesn't expose any not-mapable memory resources.
v2: remove unused man variable as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378246/
Christian König [Thu, 16 Jul 2020 11:35:48 +0000 (13:35 +0200)]
drm/nouveau: stop using TTM_MEMTYPE_FLAG_MAPPABLE
The driver doesn't expose any not-mapable memory resources.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378244/
Christian König [Thu, 16 Jul 2020 08:15:17 +0000 (10:15 +0200)]
drm/vmwgfx: stop using TTM_MEMTYPE_FLAG_MAPPABLE
The driver doesn't expose any not-mapable memory resources.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378241/
Christian König [Wed, 15 Jul 2020 12:52:05 +0000 (14:52 +0200)]
drm/ttm: remove TTM_MEMTYPE_FLAG_CMA
The original intention was to avoid CPU page table unmaps
when BOs move between the GTT and SYSTEM domain.
The problem is that this never correctly handled changes
in the caching attributes or backing pages.
Just drop this for now and simply unmap the CPU page
tables in all cases.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378240/
Christian König [Wed, 15 Jul 2020 11:22:56 +0000 (13:22 +0200)]
drm/ttm: cleanup coding style and implementation.
Only functional change is to always keep io_reserved_count up to date
for debugging even when it is not used otherwise.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378242/
Christian König [Wed, 15 Jul 2020 11:05:52 +0000 (13:05 +0200)]
drm/ttm: remove io_reserve_fastpath flag
Just use the use_io_reserve_lru flag. It doesn't make much
sense to have two flags.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378238/
Christian König [Mon, 13 Jul 2020 14:50:04 +0000 (16:50 +0200)]
drm/ttm: cleanup io_mem interface with nouveau
Nouveau is the only user of this functionality and evicting io space
on -EAGAIN is really a misuse of the return code.
Instead switch to using -ENOSPC here which makes much more sense and
simplifies the code.
This could unbreak something as we now cleanly return EAGAIN, but the
chance for this are rather low.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/378237/
Christian König [Fri, 10 Jul 2020 13:13:41 +0000 (15:13 +0200)]
drm: remove optional dummy function from drivers using TTM
Implementing those is completely unnecessary.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Madhav Chauhan <madhav.chauhan@amd.com>
Link: https://patchwork.freedesktop.org/patch/378236/
Daniel Vetter [Thu, 9 Jul 2020 12:33:38 +0000 (14:33 +0200)]
dma-buf.rst: Document why indefinite fences are a bad idea
Comes up every few years, gets somewhat tedious to discuss, let's
write this down once and for all.
What I'm not sure about is whether the text should be more explicit in
flat out mandating the amdkfd eviction fences for long running compute
workloads or workloads where userspace fencing is allowed.
v2: Now with dot graph!
v3: Typo (Dave Airlie)
Reviewed-by: Thomas Hellstrom <thomas.hellstrom@intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Jesse Natalie <jenatali@microsoft.com>
Cc: Steve Pronovost <spronovo@microsoft.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Thomas Hellstrom <thomas.hellstrom@intel.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-rdma@vger.kernel.org
Cc: amd-gfx@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200709123339.547390-1-daniel.vetter@ffwll.ch
Daniel Vetter [Tue, 7 Jul 2020 20:12:06 +0000 (22:12 +0200)]
dma-fence: prime lockdep annotations
Two in one go:
- it is allowed to call dma_fence_wait() while holding a
dma_resv_lock(). This is fundamental to how eviction works with ttm,
so required.
- it is allowed to call dma_fence_wait() from memory reclaim contexts,
specifically from shrinker callbacks (which i915 does), and from mmu
notifier callbacks (which amdgpu does, and which i915 sometimes also
does, and probably always should, but that's kinda a debate). Also
for stuff like HMM we really need to be able to do this, or things
get real dicey.
Consequence is that any critical path necessary to get to a
dma_fence_signal for a fence must never a) call dma_resv_lock nor b)
allocate memory with GFP_KERNEL. Also by implication of
dma_resv_lock(), no userspace faulting allowed. That's some supremely
obnoxious limitations, which is why we need to sprinkle the right
annotations to all relevant paths.
The one big locking context we're leaving out here is mmu notifiers,
added in
commit
23b68395c7c78a764e8963fc15a7cfd318bf187f
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon Aug 26 22:14:21 2019 +0200
mm/mmu_notifiers: add a lockdep map for invalidate_range_start/end
that one covers a lot of other callsites, and it's also allowed to
wait on dma-fences from mmu notifiers. But there's no ready-made
functions exposed to prime this, so I've left it out for now.
v2: Also track against mmu notifier context.
v3: kerneldoc to spec the cross-driver contract. Note that currently
i915 throws in a hard-coded 10s timeout on foreign fences (not sure
why that was done, but it's there), which is why that rule is worded
with SHOULD instead of MUST.
Also some of the mmu_notifier/shrinker rules might surprise SoC
drivers, I haven't fully audited them all. Which is infeasible anyway,
we'll need to run them with lockdep and dma-fence annotations and see
what goes boom.
v4: A spelling fix from Mika
v5: #ifdef for CONFIG_MMU_NOTIFIER. Reported by 0day. Unfortunately
this means lockdep enforcement is slightly inconsistent, it won't spot
GFP_NOIO and GFP_NOFS allocations in the wrong spot if
CONFIG_MMU_NOTIFIER is disabled in the kernel config. Oh well.
v5: Note that only drivers/gpu has a reasonable (or at least
historical) excuse to use dma_fence_wait() from shrinker and mmu
notifier callbacks. Everyone else should either have a better memory
manager model, or better hardware. This reflects discussions with
Jason Gunthorpe.
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: kernel test robot <lkp@intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@intel.com> (v4)
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Thomas Hellstrom <thomas.hellstrom@intel.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-rdma@vger.kernel.org
Cc: amd-gfx@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200707201229.472834-3-daniel.vetter@ffwll.ch
Daniel Vetter [Tue, 7 Jul 2020 20:12:05 +0000 (22:12 +0200)]
dma-fence: basic lockdep annotations
Design is similar to the lockdep annotations for workers, but with
some twists:
- We use a read-lock for the execution/worker/completion side, so that
this explicit annotation can be more liberally sprinkled around.
With read locks lockdep isn't going to complain if the read-side
isn't nested the same way under all circumstances, so ABBA deadlocks
are ok. Which they are, since this is an annotation only.
- We're using non-recursive lockdep read lock mode, since in recursive
read lock mode lockdep does not catch read side hazards. And we
_very_ much want read side hazards to be caught. For full details of
this limitation see
commit
e91498589746065e3ae95d9a00b068e525eec34f
Author: Peter Zijlstra <peterz@infradead.org>
Date: Wed Aug 23 13:13:11 2017 +0200
locking/lockdep/selftests: Add mixed read-write ABBA tests
- To allow nesting of the read-side explicit annotations we explicitly
keep track of the nesting. lock_is_held() allows us to do that.
- The wait-side annotation is a write lock, and entirely done within
dma_fence_wait() for everyone by default.
- To be able to freely annotate helper functions I want to make it ok
to call dma_fence_begin/end_signalling from soft/hardirq context.
First attempt was using the hardirq locking context for the write
side in lockdep, but this forces all normal spinlocks nested within
dma_fence_begin/end_signalling to be spinlocks. That bollocks.
The approach now is to simple check in_atomic(), and for these cases
entirely rely on the might_sleep() check in dma_fence_wait(). That
will catch any wrong nesting against spinlocks from soft/hardirq
contexts.
The idea here is that every code path that's critical for eventually
signalling a dma_fence should be annotated with
dma_fence_begin/end_signalling. The annotation ideally starts right
after a dma_fence is published (added to a dma_resv, exposed as a
sync_file fd, attached to a drm_syncobj fd, or anything else that
makes the dma_fence visible to other kernel threads), up to and
including the dma_fence_wait(). Examples are irq handlers, the
scheduler rt threads, the tail of execbuf (after the corresponding
fences are visible), any workers that end up signalling dma_fences and
really anything else. Not annotated should be code paths that only
complete fences opportunistically as the gpu progresses, like e.g.
shrinker/eviction code.
The main class of deadlocks this is supposed to catch are:
Thread A:
mutex_lock(A);
mutex_unlock(A);
dma_fence_signal();
Thread B:
mutex_lock(A);
dma_fence_wait();
mutex_unlock(A);
Thread B is blocked on A signalling the fence, but A never gets around
to that because it cannot acquire the lock A.
Note that dma_fence_wait() is allowed to be nested within
dma_fence_begin/end_signalling sections. To allow this to happen the
read lock needs to be upgraded to a write lock, which means that any
other lock is acquired between the dma_fence_begin_signalling() call and
the call to dma_fence_wait(), and still held, this will result in an
immediate lockdep complaint. The only other option would be to not
annotate such calls, defeating the point. Therefore these annotations
cannot be sprinkled over the code entirely mindless to avoid false
positives.
Originally I hope that the cross-release lockdep extensions would
alleviate the need for explicit annotations:
https://lwn.net/Articles/709849/
But there's a few reasons why that's not an option:
- It's not happening in upstream, since it got reverted due to too
many false positives:
commit
e966eaeeb623f09975ef362c2866fae6f86844f9
Author: Ingo Molnar <mingo@kernel.org>
Date: Tue Dec 12 12:31:16 2017 +0100
locking/lockdep: Remove the cross-release locking checks
This code (CONFIG_LOCKDEP_CROSSRELEASE=y and CONFIG_LOCKDEP_COMPLETIONS=y),
while it found a number of old bugs initially, was also causing too many
false positives that caused people to disable lockdep - which is arguably
a worse overall outcome.
- cross-release uses the complete() call to annotate the end of
critical sections, for dma_fence that would be dma_fence_signal().
But we do not want all dma_fence_signal() calls to be treated as
critical, since many are opportunistic cleanup of gpu requests. If
these get stuck there's still the main completion interrupt and
workers who can unblock everyone. Automatically annotating all
dma_fence_signal() calls would hence cause false positives.
- cross-release had some educated guesses for when a critical section
starts, like fresh syscall or fresh work callback. This would again
cause false positives without explicit annotations, since for
dma_fence the critical sections only starts when we publish a fence.
- Furthermore there can be cases where a thread never does a
dma_fence_signal, but is still critical for reaching completion of
fences. One example would be a scheduler kthread which picks up jobs
and pushes them into hardware, where the interrupt handler or
another completion thread calls dma_fence_signal(). But if the
scheduler thread hangs, then all the fences hang, hence we need to
manually annotate it. cross-release aimed to solve this by chaining
cross-release dependencies, but the dependency from scheduler thread
to the completion interrupt handler goes through hw where
cross-release code can't observe it.
In short, without manual annotations and careful review of the start
and end of critical sections, cross-relese dependency tracking doesn't
work. We need explicit annotations.
v2: handle soft/hardirq ctx better against write side and dont forget
EXPORT_SYMBOL, drivers can't use this otherwise.
v3: Kerneldoc.
v4: Some spelling fixes from Mika
v5: Amend commit message to explain in detail why cross-release isn't
the solution.
v6: Pull out misplaced .rst hunk.
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Thomas Hellstrom <thomas.hellstrom@intel.com>
Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-rdma@vger.kernel.org
Cc: amd-gfx@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200707201229.472834-2-daniel.vetter@ffwll.ch
Christian König [Thu, 16 Jul 2020 11:58:35 +0000 (13:58 +0200)]
drm/vram-helper: stop using TTM_MEMTYPE_FLAG_MAPPABLE
The helper doesn't expose any not-mapable memory resources.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/377649/
Markus Elfring [Sun, 5 Apr 2020 09:01:49 +0000 (11:01 +0200)]
drm/imx: imx-tve: Delete an error message in imx_tve_bind()
The function “platform_get_irq” can log an error already.
Thus omit a redundant message for the exception handling in the
calling function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Steve Longerbeam [Thu, 25 Jun 2020 18:13:37 +0000 (11:13 -0700)]
gpu: ipu-v3: image-convert: Wait for all EOFs before completing a tile
Use a bit-mask of EOF irqs to determine when all required idmac
channel EOFs have been received for a tile conversion, and only do
tile completion processing after all EOFs have been received. Otherwise
it was found that a conversion would stall after the completion of a
tile and the start of the next tile, because the input/read idmac
channel had not completed and entered idle state, thus locking up the
channel when attempting to re-start it for the next tile.
Fixes:
0537db801bb01 ("gpu: ipu-v3: image-convert: reconfigure IC per tile")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Steve Longerbeam [Wed, 17 Jun 2020 22:40:37 +0000 (15:40 -0700)]
gpu: ipu-v3: image-convert: Combine rotate/no-rotate irq handlers
Combine the rotate_irq() and norotate_irq() handlers into a single
eof_irq() handler.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Steve Longerbeam [Wed, 17 Jun 2020 22:40:36 +0000 (15:40 -0700)]
gpu: ipu-v3: Restore RGB32, BGR32
RGB32 and BGR32 formats were inadvertently removed from the switch
statement in ipu_pixelformat_to_colorspace(). Restore them.
Fixes:
a59957172b0c ("gpu: ipu-v3: enable remaining 32-bit RGB V4L2 pixel formats")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Liu Ying [Thu, 9 Jul 2020 02:28:52 +0000 (10:28 +0800)]
drm/imx: imx-ldb: Disable both channels for split mode in enc->disable()
Both of the two LVDS channels should be disabled for split mode
in the encoder's ->disable() callback, because they are enabled
in the encoder's ->enable() callback.
Fixes:
6556f7f82b9c ("drm: imx: Move imx-drm driver out of staging")
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Marco Felsch [Wed, 20 Nov 2019 16:54:59 +0000 (17:54 +0100)]
drm/imx: parallel-display: move panel/bridge detection to fail early
We do some string parsing and string comparison in front of
drm_of_find_panel_or_bridge(). All this work is useless if the call
fails. Move drm_of_find_panel_or_bridge() infront of the parsing work to
fail early.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Marco Felsch [Thu, 21 Nov 2019 16:55:09 +0000 (17:55 +0100)]
drm/imx: imx-ldb: remove useless enum
Since commit
5e501ed7253b ("drm/imx: imx-ldb: allow to determine bus
format from the connected panel") the enum isn't used anymore. Drop it
to cleanup the code a bit.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Marco Felsch [Thu, 21 Nov 2019 13:47:43 +0000 (14:47 +0100)]
drm/imx: drop useless best_encoder callback
The best_encoder() callback is used by the drm-core to find an encoder
if the connector is connected to multiple encoders but the parallel, tve
and ldb uses always the 1-encoder : 1-connector setup. Such a simple
setup can be handled by the drm-core.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Marco Felsch [Thu, 11 Jun 2020 12:43:32 +0000 (14:43 +0200)]
drm/imx: tve: fix regulator_disable error path
Add missing regulator_disable() as devm_action to avoid dedicated
unbind() callback and fix the missing error handling.
Fixes:
fcbc51e54d2a ("staging: drm/imx: Add support for Television Encoder (TVEv2)")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Marek Vasut [Mon, 9 Mar 2020 20:18:33 +0000 (21:18 +0100)]
drm/imx: parallel-display: Adjust bus_flags handling
The bus_flags handling logic does not seem to cover all potential
usecases. Specifically, this seems to fail with an "edt,etm0700g0edh6"
display attached to an 24bit display interface, with interface-pix-fmt
= "rgb24" set in DT.
This patch fixes the problem by overriding the imx_crtc_state->bus_flags
from the imxpd->bus_flags only if the DT property "interface-pix-fmt" is
present or if the DI provides no formats.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Philipp Zabel [Thu, 11 Jun 2020 12:43:31 +0000 (14:43 +0200)]
drm/imx: fix use after free
Component driver structures allocated with devm_kmalloc() in bind() are
freed automatically after unbind(). Since the contained drm structures
are accessed afterwards in drm_mode_config_cleanup(), move the
allocation into probe() to extend the driver structure's lifetime to the
lifetime of the device. This should eventually be changed to use drm
resource managed allocations with lifetime of the drm device.
We also need to ensure that all componets are available during the
unbind() so we need to call component_unbind_all() before we free
non-devres resources like planes.
Note this patch fixes the the use after free bug but introduces a
possible boot loop issue. The issue is triggered if the HDMI support is
enabled and a component driver always return -EPROBE_DEFER, see
discussion [1] for more details.
[1] https://lkml.org/lkml/2020/3/24/1467
Fixes:
17b5001b5143 ("imx-drm: convert to componentised device support")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[m.felsch@pengutronix: fix imx_tve_probe()]
[m.felsch@pengutronix: resort component_unbind_all())
[m.felsch@pengutronix: adapt commit message]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Alexander A. Klimov [Sun, 19 Jul 2020 20:37:14 +0000 (22:37 +0200)]
video: fbdev: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200719203714.61745-1-grandmaster@al2klimov.de
Alexander A. Klimov [Sun, 19 Jul 2020 17:14:28 +0000 (19:14 +0200)]
drm: Replace HTTP links with HTTPS ones
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200719171428.60470-1-grandmaster@al2klimov.de
Uwe Kleine-König [Thu, 16 Jul 2020 17:41:39 +0000 (19:41 +0200)]
drm/mxsfb: drop unused function parameter
flags is unused since the driver was introduced in commit
45d59d704080
("drm: Add new driver for MXSFB controller").
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716174139.16602-1-u.kleine-koenig@pengutronix.de
Guido Günther [Mon, 23 Mar 2020 14:52:46 +0000 (15:52 +0100)]
drm/mxsfb: Make supported modifiers explicit
In contrast to other display controllers on imx like DCSS and ipuv3
lcdif/mxsfb does not support detiling e.g. vivante tiled layouts.
Since mesa might assume otherwise make it explicit that only
DRM_FORMAT_MOD_LINEAR is supported.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/26877532e272c12a74c33188e2a72abafc9a2e1c.1584973664.git.agx@sigxcpu.org
Suraj Upadhyay [Sat, 18 Jul 2020 15:09:55 +0000 (20:39 +0530)]
drm: core: Convert device logging to drm_* functions.
Convert device logging with dev_* functions into drm_* functions.
The patch has been generated with the coccinelle script below.
The script focuses on instances of dev_* functions where the drm device
context is clearly visible in its arguments.
@@expression E1; expression list E2; @@
-dev_warn(E1->dev, E2)
+drm_warn(E1, E2)
@@expression E1; expression list E2; @@
-dev_info(E1->dev, E2)
+drm_info(E1, E2)
@@expression E1; expression list E2; @@
-dev_err(E1->dev, E2)
+drm_err(E1, E2)
@@expression E1; expression list E2; @@
-dev_info_once(E1->dev, E2)
+drm_info_once(E1, E2)
@@expression E1; expression list E2; @@
-dev_notice_once(E1->dev, E2)
+drm_notice_once(E1, E2)
@@expression E1; expression list E2; @@
-dev_warn_once(E1->dev, E2)
+drm_warn_once(E1, E2)
@@expression E1; expression list E2; @@
-dev_err_once(E1->dev, E2)
+drm_err_once(E1, E2)
@@expression E1; expression list E2; @@
-dev_err_ratelimited(E1->dev, E2)
+drm_err_ratelimited(E1, E2)
@@expression E1; expression list E2; @@
-dev_dbg(E1->dev, E2)
+drm_dbg(E1, E2)
Signed-off-by: Suraj Upadhyay <usuraj35@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200718150955.GA23103@blackclown
Christophe JAILLET [Sat, 18 Jul 2020 07:28:22 +0000 (09:28 +0200)]
drm/i810: switch from 'pci_' to 'dma_' API
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'i810_dma_initialize()' GFP_KERNEL can be used
because its only caller, 'i810_dma_init()', already use it and no lock is
taken in the between.
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200718072822.339064-1-christophe.jaillet@wanadoo.fr
Dave Airlie [Mon, 20 Jul 2020 07:29:49 +0000 (17:29 +1000)]
Merge tag 'drm-misc-next-2020-07-16' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.9:
UAPI Changes:
Cross-subsystem Changes:
- Add ckoenig as dma-buf maintainer.
- Revert invalid fix for dma-fence-chain, and fix selftest.
- Add fixmes to amifb about APUS support.
- Use array3_size in fbcon_prepare_logo, and struct_size() in alloc_apertures.
- Fix leaks in neofb, fb/savage and omapfb.
- Other small fixes to fb code.
- Convert some dt bindings to schema for some panels, and fix simple-framebuffer dt example.
Core Changes:
- Add DRM_FORMAT_MOD_GENERIC_16_16_TILE as alias to DRM_FORMAT_MOD_SAMSUNG_16_16_TILE,
as it can be used more generic.
- Add support for multiple DispID extension blocks in edid.
- Use https instead of http for some of the urls.
- Use drm_* macros for logging in mipi-dsi and fb-helper.
- Further cleanup ttm_mem_reg handling.
- Remove duplicated words in comments.
Driver Changes:
- Use __drm_atomic_helper_crtc_reset in all atomic drivers.
- Add Amlogic Video FBC support to meson and fourcc to core.
- Refactor hisilicon's hibmc_drv_vdac.
- Create a TXP CRTC for vc4.
- Rework cursor support in ast.
- Fix runtime PM in STM.
- Allow bigger cursors in vkms.
- Cleanup sg handling in radeon and amdgpu, and stop creating dummy
gtt nodes with ttm fixed.
- Rework crtc handling in mgag200.
- Miscellaneous small fixes to meson, vgem, bridge/dw-hdmi,
panel/auo,b116xw03, panel/LG LB070WV8, lima, bridge/sil_sii8620,
virtio, tilcdc.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8b360d65-f228-9286-d247-3004156a5254@linux.intel.com
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:53 +0000 (14:53 +0200)]
drm/ast: Use managed MM initialization
Cleaning up ast's MM code with ast_mm_fini() resets the write-combine
flags on the VRAM I/O memory. Drop ast_mm_fini() in favor of an auto-
release callback. Releasing the device also executes the callback.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-7-tzimmermann@suse.de
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:52 +0000 (14:53 +0200)]
drm/ast: Initialize DRAM type before posting GPU
Posting the GPU requires the correct DRAM type to be stored in
struct ast_private. Therefore first initialize the DRAM info and
then post the GPU. This restores the original order of instructions
in this function.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Fixes:
bad09da6deab ("drm/ast: Fixed vram size incorrect issue on POWER")
Cc: Joel Stanley <joel@jms.id.au>
Cc: Y.C. Chen <yc_chen@aspeedtech.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Cc: "Y.C. Chen" <yc_chen@aspeedtech.com>
Cc: <stable@vger.kernel.org> # v4.11+
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-6-tzimmermann@suse.de
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:51 +0000 (14:53 +0200)]
drm/ast: Move VRAM size detection to ast_mm.c
VRAM size detection is only relevant to the memory management. Move
the code into ast_mm.c.
While at it, rename the function to ast_get_vram_size(). The function
argument's type is now struct ast_private. The result is stored in a
local variable and not in struct ast_private any longer.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-5-tzimmermann@suse.de
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:50 +0000 (14:53 +0200)]
drm/ast: Use managed VRAM-helper initialization
As a first step to managed MM code in ast, switch over VRAM MM helpers.
v2:
* updated to use drmm_vram_helper_init()
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-4-tzimmermann@suse.de
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:49 +0000 (14:53 +0200)]
drm/ast: Rename ast_ttm.c to ast_mm.c
Although built upon TTM, the ast driver's VRAM MM helper does not
expose TTM to its users. Rename the related ast file to ast_mm.c.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-3-tzimmermann@suse.de
Thomas Zimmermann [Thu, 16 Jul 2020 12:53:48 +0000 (14:53 +0200)]
drm/vram-helper: Managed vram helpers
Calling drmm_vram_helper_init() sets up a managed instance of
VRAM MM. Releasing the DRM device also frees the memory manager.
The patch also updates the DRM documentation for VRAM helpers. The
tutorial now describes the new managed interface. The old interfaces
are deprecated and should not be used in new code.
v2:
* rename init function to drmm_vram_helper_init()
* return errno code from init function; caller does not
need vram_mm anyway
* update documentation and remove docs for deprecated
un-managed functions
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716125353.31512-2-tzimmermann@suse.de
Linus Torvalds [Sun, 19 Jul 2020 22:41:18 +0000 (15:41 -0700)]
Linux 5.8-rc6
Linus Torvalds [Sun, 19 Jul 2020 19:35:07 +0000 (12:35 -0700)]
Merge tag 'perf-tools-fixes-2020-07-19' of git://git./linux/kernel/git/acme/linux into master
Pull perf tooling fixes from Arnaldo Carvalho de Melo:
- Update hashmap.h from libbpf and kvm.h from x86's kernel UAPI.
- Set opt->set in libsubcmd's OPT_CALLBACK_SET(). This fixes
'perf record --switch-output-event event-name' usage"
* tag 'perf-tools-fixes-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
tools arch kvm: Sync kvm headers with the kernel sources
perf tools: Sync hashmap.h with libbpf's
libsubcmd: Fix OPT_CALLBACK_SET()
Linus Torvalds [Sun, 19 Jul 2020 19:16:09 +0000 (12:16 -0700)]
Merge tag 'x86-urgent-2020-07-19' of git://git./linux/kernel/git/tip/tip into master
Pull x86 fixes from Thomas Gleixner:
"A pile of fixes for x86:
- Fix the I/O bitmap invalidation on XEN PV, which was overlooked in
the recent ioperm/iopl rework. This caused the TSS and XEN's I/O
bitmap to get out of sync.
- Use the proper vectors for HYPERV.
- Make disabling of stack protector for the entry code work with GCC
builds which enable stack protector by default. Removing the option
is not sufficient, it needs an explicit -fno-stack-protector to
shut it off.
- Mark check_user_regs() noinstr as it is called from noinstr code.
The missing annotation causes it to be placed in the text section
which makes it instrumentable.
- Add the missing interrupt disable in exc_alignment_check()
- Fixup a XEN_PV build dependency in the 32bit entry code
- A few fixes to make the Clang integrated assembler happy
- Move EFI stub build to the right place for out of tree builds
- Make prepare_exit_to_usermode() static. It's not longer called from
ASM code"
* tag 'x86-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Don't add the EFI stub to targets
x86/entry: Actually disable stack protector
x86/ioperm: Fix io bitmap invalidation on Xen PV
x86: math-emu: Fix up 'cmp' insn for clang ias
x86/entry: Fix vectors to IDTENTRY_SYSVEC for CONFIG_HYPERV
x86/entry: Add compatibility with IAS
x86/entry/common: Make prepare_exit_to_usermode() static
x86/entry: Mark check_user_regs() noinstr
x86/traps: Disable interrupts in exc_aligment_check()
x86/entry/32: Fix XEN_PV build dependency
Linus Torvalds [Sun, 19 Jul 2020 19:06:08 +0000 (12:06 -0700)]
Merge tag 'timers-urgent-2020-07-19' of git://git./linux/kernel/git/tip/tip into master
Pull timer fixes from Thomas Gleixner:
"Two fixes for the timer wheel:
- A timer which is already expired at enqueue time can set the
base->next_expiry value backwards. As a consequence base->clk can
be set back as well. This can lead to timers expiring early. Add a
sanity check to prevent this.
- When a timer is queued with an expiry time beyond the wheel
capacity then it should be queued in the bucket of the last wheel
level which is expiring last.
The code adjusted the expiry time to the maximum wheel capacity,
which is only correct when the wheel clock is 0. Aside of that the
check whether the delta is larger than wheel capacity does not
check the delta, it checks the expiry value itself. As a result
timers can expire at random.
Fix this by checking the right variable and adjust expiry time so
it becomes base->clock plus capacity which places it into the
outmost bucket in the last wheel level"
* tag 'timers-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timer: Fix wheel index calculation on last level
timer: Prevent base->clk from moving backward
Linus Torvalds [Sun, 19 Jul 2020 18:55:24 +0000 (11:55 -0700)]
Merge tag 'sched-urgent-2020-07-19' of git://git./linux/kernel/git/tip/tip into master
Pull scheduler fixes from Thomas Gleixner:
"A set of scheduler fixes:
- Plug a load average accounting race which was introduced with a
recent optimization casing load average to show bogus numbers.
- Fix the rseq CPU id initialization for new tasks. sched_fork() does
not update the rseq CPU id so the id is the stale id of the parent
task, which can cause user space data corruption.
- Handle a 0 return value of task_h_load() correctly in the load
balancer, which does not decrease imbalance and therefore pulls
until the maximum number of loops is reached, which might be all
tasks just created by a fork bomb"
* tag 'sched-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: handle case of task_h_load() returning 0
sched: Fix unreliable rseq cpu_id for new tasks
sched: Fix loadavg accounting race
Linus Torvalds [Sun, 19 Jul 2020 18:53:08 +0000 (11:53 -0700)]
Merge tag 'irq-urgent-2020-07-19' of git://git./linux/kernel/git/tip/tip into master
Pull irq fixes from Thomas Gleixner:
"Two fixes for the interrupt subsystem:
- Make the handling of the firmware node consistent and do not free
the node after the domain has been created successfully. The core
code stores a pointer to it which can lead to a use after free or
double free.
This used to "work" because the pointer was not stored when the
initial code was written, but at some point later it was required
to store it. Of course nobody noticed that the existing users break
that way.
- Handle affinity setting on inactive interrupts correctly when
hierarchical irq domains are enabled.
When interrupts are inactive with the modern hierarchical irqdomain
design, the interrupt chips are not necessarily in a state where
affinity changes can be handled. The legacy irq chip design allowed
this because interrupts are immediately fully initialized at
allocation time. X86 has a hacky workaround for this, but other
implementations do not.
This cased malfunction on GIC-V3. Instead of playing whack a mole
to find all affected drivers, change the core code to store the
requested affinity setting and then establish it when the interrupt
is allocated, which makes the X86 hack go away"
* tag 'irq-urgent-2020-07-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/affinity: Handle affinity setting on inactive interrupts correctly
irqdomain/treewide: Keep firmware node unconditionally allocated