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Make sure to enable the clk_pixel clock during bind so that all other
driver in the display pipeline can rely on it. Without this change we
might see ghosting effects in around 10% of the reboots because
something in the display pipeline runs out of sync. With this change we
don't disable the clk_pixel when the display is turned off so this might
increase the power consumption in standby mode a bit. However, it would
require some bigger changes in the display pipeline to allow this.
Upstream-Status: Inappropriate [other]
The dpu is currently only supported in the downstream kernel. A fix will
most likely be applied by NXP to the downstream kernel. A similar patch
was provided by them but it breaks the DPMS off/standby mode. See this
ticket for more information:
https://support.nxp.com/s/case/5002p00002vUMOL/ghosting-effect-on-parallel-rgb-interface
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
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This is the 5.4.193 stable release
Conflicts:
arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
drivers/edac/synopsys_edac.c
drivers/mmc/host/sdhci-esdhc-imx.c
drivers/mmc/host/sdhci.c
drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c
sound/soc/codecs/msm8916-wcd-analog.c
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The connector type for a panel without a bridge should be DRM_MODE_CONNECTOR_DPI.
Signed-off-by: Oliver Brown <oliver.brown@nxp.com>
Reviewed-by: Robert Chiras <robert.chiras@nxp.com>
(cherry picked from commit cc8cfef78c0ebaa5936af8d1a65f9372680b6634)
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Change enable calls to disable calls in imx8qm_ipg_clk_disable
Signed-off-by: Oliver Brown <oliver.brown@nxp.com>
(cherry picked from commit 8d4eef776974fce47db4447226b3834d4eb5afc5)
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This fixes an issue where there is no display after resuming from suspend
due to missing PHY initialization.
Signed-off-by: Oliver Brown <oliver.brown@nxp.com>
Reviewed-by: Sandor Yu <Sandor.yu@nxp.com>
(cherry picked from commit 23617be31285b84b68e652d3fb39dc73875126c1)
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commit b40a6ab2cf9213923bf8e821ce7fa7f6a0a26990 upstream.
amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu needs the drm_priv to allow mmap
to access the BO through the corresponding file descriptor. The VM can
also be extracted from drm_priv, so drm_priv can replace the vm parameter
in the kfd2kgd interface.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Philip Yang <philip.yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[This is a partial cherry-pick of the upstream commit.]
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 65e54987508b6f0771f56bdfa3ee1926d52785ae ]
When dcn20_clk_src_construct() fails, we need to release clk_src.
Fixes: 6f4e6361c3ff ("drm/amd/display: Add Renoir resource (v2)")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3d0b93d92a2790337aa9d18cb332d02356a24126 ]
If the device is already in a runtime PM enabled state
pm_runtime_get_sync() will return 1.
Also, we need to call pm_runtime_put_noidle() when pm_runtime_get_sync()
fails, so use pm_runtime_resume_and_get() instead. this function
will handle this.
Fixes: 4078f5757144 ("drm/vc4: Add DSI driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220420135008.2757-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 5f18c0782b99e26121efa93d20b76c19e17aa1dd ]
The panel has a prepare call which is before video starts, and an
enable call which is after.
The Toshiba bridge should be configured before video, so move
the relevant power and initialisation calls to prepare.
Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220415162513.42190-3-stefan.wahren@i2se.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f92055ae0acb035891e988ce345d6b81a0316423 ]
If a call to rpi_touchscreen_i2c_write from rpi_touchscreen_probe
fails before mipi_dsi_device_register_full is called, then
in trying to log the error message if uses ts->dsi->dev when
it is still NULL.
Use ts->i2c->dev instead, which is initialised earlier in probe.
Fixes: 2f733d6194bd ("drm/panel: Add support for the Raspberry Pi 7" Touchscreen.")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220415162513.42190-2-stefan.wahren@i2se.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 047ae665577776b7feb11bd4f81f46627cff95e7 ]
kzalloc() is a memory allocation function which can return NULL when
some internal memory errors happen. So it is better to check it to
prevent potential wrong memory access.
Besides, since mdp5_plane_reset() is void type, so we should better
set `plane-state` to NULL after releasing it.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/481055/
Link: https://lore.kernel.org/r/tencent_8E2A1C78140EE1784AB2FF4B2088CC0AB908@qq.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit e4f1541caf60fcbe5a59e9d25805c0b5865e546a upstream.
"Pre-multiplied" is the default pixel blend mode for KMS/DRM, as
documented in supported_modes of drm_plane_create_blend_mode_property():
https://cgit.freedesktop.org/drm/drm-misc/tree/drivers/gpu/drm/drm_blend.c
In this mode, both 'pixel alpha' and 'plane alpha' participate in the
calculation, as described by the pixel blend mode formula in KMS/DRM
documentation:
out.rgb = plane_alpha * fg.rgb +
(1 - (plane_alpha * fg.alpha)) * bg.rgb
Considering the blend config mechanisms we have in the driver so far,
the alpha mode that better fits this blend mode is the
_PER_PIXEL_ALPHA_COMBINED_GLOBAL_GAIN, where the value for global_gain
is the plane alpha (global_alpha).
With this change, alpha property stops to be ignored. It also addresses
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1734
v2:
* keep the 8-bit value for global_alpha_value (Nicholas)
* correct the logical ordering for combined global gain (Nicholas)
* apply to dcn10 too (Nicholas)
Signed-off-by: Melissa Wen <mwen@igalia.com>
Tested-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Simon Ser <contact@emersion.fr>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit f4346fb3edf7720db3f7f5e1cab1f667cd024280 ]
[Why]
On resume we do link detection for all non-MST connectors.
MST is handled separately. However the condition for telling
if connector is on mst branch is not enough for mst hub case.
Link detection for mst branch link leads to mst topology reset.
That causes assert in dc_link_allocate_mst_payload()
[How]
Use link type as indicator for mst link.
Reviewed-by: Wayne Lin <Wayne.Lin@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 070a88fd4a03f921b73a2059e97d55faaa447dab ]
This commit corrects the printing of the IPU clock error percentage if
it is between -0.1% to -0.9%. For example, if the pixel clock requested
is 27.2 MHz but only 27.0 MHz can be achieved the deviation is -0.8%.
But the fixed point math had a flaw and calculated error of 0.2%.
Before:
Clocks: IPU 270000000Hz DI 24716667Hz Needed 27200000Hz
IPU clock can give 27000000 with divider 10, error 0.2%
Want 27200000Hz IPU 270000000Hz DI 24716667Hz using IPU, 27000000Hz
After:
Clocks: IPU 270000000Hz DI 24716667Hz Needed 27200000Hz
IPU clock can give 27000000 with divider 10, error -0.8%
Want 27200000Hz IPU 270000000Hz DI 24716667Hz using IPU, 27000000Hz
Signed-off-by: Leo Ruan <tingquan.ruan@cn.bosch.com>
Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220207151411.5009-1-mark.jonas@de.bosch.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ebbb7bb9e80305820dc2328a371c1b35679f2667 ]
As the kmalloc_array() may return null, the 'event_waiters[i].wait' would lead to null-pointer dereference.
Therefore, it is better to check the return value of kmalloc_array() to avoid this confusion.
Signed-off-by: QintaoShen <unSimple1993@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b7dfbd2e601f3fee545bc158feceba4f340fe7cf ]
Compute-only GPUs have more than 8 VMIDs allocated to KFD. Fix
this by passing correct number of VMIDs to HWS
v2: squash in warning fix (Alex)
Signed-off-by: Tushar Patel <tushar.patel@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c9fbf6435162ed5fb7201d1d4adf6585c6a8c327 ]
[Why & How]
The latest HDMI SPEC has updated the VTEM packet structure,
so change the VTEM Infopacket defined in the driver side to align
with the SPEC.
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Leo (Hanghong) Ma <hanghong.ma@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 5e8a71cf13bc9184fee915b2220be71b4c6cac74 ]
[why]
for the case edid change only changed audio format.
driver still need to update stream.
Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c5c948aa894a831f96fccd025e47186b1ee41615 ]
[Why&How] Add a dedicated AMDGPU specific ID for use with
newer ASICs that support USB-C output
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 47b7de6b88b962ef339a2427a023d2a23d161654 ]
The member 'msm_dsi->connector' isn't assigned until
msm_dsi_manager_connector_init() returns (see msm_dsi_modeset_init() and
how it assigns the return value). Therefore this pointer is going to be
NULL here. Let's use 'connector' which is what was intended.
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Sean Paul <seanpaul@chromium.org>
Fixes: 6d5e78406991 ("drm/msm/dsi: Move dsi panel init into modeset init path")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/478693/
Link: https://lore.kernel.org/r/20220318000731.2823718-1-swboyd@chromium.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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This patch is for linux-5.4.y only, it has no equivalent change
upstream.
When building x86_64 allmodconfig with tip of tree clang, there is an
instance of -Wstrict-prototypes:
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v10.c:168:59: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions()
^
void
1 error generated.
amdgpu_amdkfd_gfx_10_0_get_functions() is prototyped properly in
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h but its definition in
amdgpu_amdkfd_gfx_v10.c does not have the argument types specified,
which causes the warning. GCC does not warn because it permits an
old-style definition if the prototype has the argument types.
This code was eliminated by commit e392c887df97 ("drm/amdkfd: Use array
to probe kfd2kgd_calls"), which was a part of a larger series that does
not look very suitable for stable. Just fix this one location, as it was
the only instance of this new warning across a variety of builds.
Fixes: 6bdadb207224 ("drm/amdgpu: Add navi10 kfd support for amdgpu (v3)")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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From: Colin Ian King <colin.king@canonical.com>
commit 63617d8b125ed9f674133dd000b6df58d6b2965a upstream.
Function kgd2kfd_init is missing a void argument, add it
to clean up the non-ANSI function declaration.
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit bce81feb03a20fca7bbdd1c4af16b4e9d5c0e1d3 ]
Avoid leaking the display mode variable if of_get_drm_display_mode
fails.
Fixes: 76ecd9c9fb24 ("drm/imx: parallel-display: check return code from of_get_drm_display_mode()")
Addresses-Coverity-ID: 1443943 ("Resource leak")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://lore.kernel.org/r/20220108165230.44610-1-jose.exposito89@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1647b54ed55d4d48c7199d439f8834626576cbe9 ]
This post-op should be a pre-op so that we do not pass -1 as the bit
number to test_bit(). The current code will loop downwards from 63 to
-1. After changing to a pre-op, it loops from 63 to 0.
Fixes: 71c37505e7ea ("drm/amdgpu/gfx: move more common KIQ code to amdgpu_gfx.c")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9dff13f9edf755a15f6507874185a3290c1ae8bb ]
The driver has a fallback so make the message informational
rather than a warning. The driver has a fallback if the
Component Resource Association Table (CRAT) is missing, so
make this informational now.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1906
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 447c7997b62a5115ba4da846dcdee4fc12298a6a ]
Noticed the below warning while running a pytorch workload on vega10
GPUs. Change to trylock to avoid conflicts with already held reservation
locks.
[ +0.000003] WARNING: possible recursive locking detected
[ +0.000003] 5.13.0-kfd-rajneesh #1030 Not tainted
[ +0.000004] --------------------------------------------
[ +0.000002] python/4822 is trying to acquire lock:
[ +0.000004] ffff932cd9a259f8 (reservation_ww_class_mutex){+.+.}-{3:3},
at: amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000203]
but task is already holding lock:
[ +0.000003] ffff932cbb7181f8 (reservation_ww_class_mutex){+.+.}-{3:3},
at: ttm_eu_reserve_buffers+0x270/0x470 [ttm]
[ +0.000017]
other info that might help us debug this:
[ +0.000002] Possible unsafe locking scenario:
[ +0.000003] CPU0
[ +0.000002] ----
[ +0.000002] lock(reservation_ww_class_mutex);
[ +0.000004] lock(reservation_ww_class_mutex);
[ +0.000003]
*** DEADLOCK ***
[ +0.000002] May be due to missing lock nesting notation
[ +0.000003] 7 locks held by python/4822:
[ +0.000003] #0: ffff932c4ac028d0 (&process->mutex){+.+.}-{3:3}, at:
kfd_ioctl_map_memory_to_gpu+0x10b/0x320 [amdgpu]
[ +0.000232] #1: ffff932c55e830a8 (&info->lock#2){+.+.}-{3:3}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x64/0xf60 [amdgpu]
[ +0.000241] #2: ffff932cc45b5e68 (&(*mem)->lock){+.+.}-{3:3}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0xdf/0xf60 [amdgpu]
[ +0.000236] #3: ffffb2b35606fd28
(reservation_ww_class_acquire){+.+.}-{0:0}, at:
amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x232/0xf60 [amdgpu]
[ +0.000235] #4: ffff932cbb7181f8
(reservation_ww_class_mutex){+.+.}-{3:3}, at:
ttm_eu_reserve_buffers+0x270/0x470 [ttm]
[ +0.000015] #5: ffffffffc045f700 (*(sspp++)){....}-{0:0}, at:
drm_dev_enter+0x5/0xa0 [drm]
[ +0.000038] #6: ffff932c52da7078 (&vm->eviction_lock){+.+.}-{3:3},
at: amdgpu_vm_bo_update_mapping+0xd5/0x4f0 [amdgpu]
[ +0.000195]
stack backtrace:
[ +0.000003] CPU: 11 PID: 4822 Comm: python Not tainted
5.13.0-kfd-rajneesh #1030
[ +0.000005] Hardware name: GIGABYTE MZ01-CE0-00/MZ01-CE0-00, BIOS F02
08/29/2018
[ +0.000003] Call Trace:
[ +0.000003] dump_stack+0x6d/0x89
[ +0.000010] __lock_acquire+0xb93/0x1a90
[ +0.000009] lock_acquire+0x25d/0x2d0
[ +0.000005] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000184] ? lock_is_held_type+0xa2/0x110
[ +0.000006] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000184] __ww_mutex_lock.constprop.17+0xca/0x1060
[ +0.000007] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000183] ? lock_release+0x13f/0x270
[ +0.000005] ? lock_is_held_type+0xa2/0x110
[ +0.000006] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000183] amdgpu_bo_release_notify+0xc4/0x160 [amdgpu]
[ +0.000185] ttm_bo_release+0x4c6/0x580 [ttm]
[ +0.000010] amdgpu_bo_unref+0x1a/0x30 [amdgpu]
[ +0.000183] amdgpu_vm_free_table+0x76/0xa0 [amdgpu]
[ +0.000189] amdgpu_vm_free_pts+0xb8/0xf0 [amdgpu]
[ +0.000189] amdgpu_vm_update_ptes+0x411/0x770 [amdgpu]
[ +0.000191] amdgpu_vm_bo_update_mapping+0x324/0x4f0 [amdgpu]
[ +0.000191] amdgpu_vm_bo_update+0x251/0x610 [amdgpu]
[ +0.000191] update_gpuvm_pte+0xcc/0x290 [amdgpu]
[ +0.000229] ? amdgpu_vm_bo_map+0xd7/0x130 [amdgpu]
[ +0.000190] amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x912/0xf60
[amdgpu]
[ +0.000234] kfd_ioctl_map_memory_to_gpu+0x182/0x320 [amdgpu]
[ +0.000218] kfd_ioctl+0x2b9/0x600 [amdgpu]
[ +0.000216] ? kfd_ioctl_unmap_memory_from_gpu+0x270/0x270 [amdgpu]
[ +0.000216] ? lock_release+0x13f/0x270
[ +0.000006] ? __fget_files+0x107/0x1e0
[ +0.000007] __x64_sys_ioctl+0x8b/0xd0
[ +0.000007] do_syscall_64+0x36/0x70
[ +0.000004] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ +0.000007] RIP: 0033:0x7fbff90a7317
[ +0.000004] Code: b3 66 90 48 8b 05 71 4b 2d 00 64 c7 00 26 00 00 00
48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f
05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 4b 2d 00 f7 d8 64 89 01 48
[ +0.000005] RSP: 002b:00007fbe301fe648 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[ +0.000006] RAX: ffffffffffffffda RBX: 00007fbcc402d820 RCX:
00007fbff90a7317
[ +0.000003] RDX: 00007fbe301fe690 RSI: 00000000c0184b18 RDI:
0000000000000004
[ +0.000003] RBP: 00007fbe301fe690 R08: 0000000000000000 R09:
00007fbcc402d880
[ +0.000003] R10: 0000000002001000 R11: 0000000000000246 R12:
00000000c0184b18
[ +0.000003] R13: 0000000000000004 R14: 00007fbf689593a0 R15:
00007fbcc402d820
Cc: Christian König <christian.koenig@amd.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit dfced44f122c500004a48ecc8db516bb6a295a1b ]
This issue takes place in an error path in
amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into
default case, the function simply returns -EINVAL, forgetting to
decrement the reference count of a dma_fence obj, which is bumped
earlier by amdgpu_cs_get_fence(). This may result in reference count
leaks.
Fix it by decreasing the refcount of specific object before returning
the error code.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Xin Xiong <xiongx18@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 0b464ca3e0dd3cec65f28bc6d396d82f19080f69 ]
Panel is 800x1280, but mounted on a laptop form factor, sideways.
Signed-off-by: Anisse Astier <anisse@astier.eu>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211229222200.53128-3-anisse@astier.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ffb5c099aaa13ab7f73c29ea6ae26bce8d7575ae ]
Add MODULE_DEVICE_TABLE to the device tree table to create required
aliases needed for module to be loaded with device tree based platform.
Fixes: e19233955d9e ("drm/bridge: Add Cadence DSI driver")
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210921174059.17946-1-nm@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 221e3638feb8bc42143833c9a704fa89b6c366bb ]
The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore. Add put_device() call to fix this.
Fixes: e94236cde4d5 ("drm/tegra: dsi: Add ganged mode support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 3679b8518cd213c25d555553ef212e233faf698c ]
Remove the vupdate_int_entry definition and utilization to avoid the
following warning by Clang:
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:410:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(0),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:404:2:
note: previous initialization is here
vupdate_int_entry(0),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:411:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(1),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:405:2:
note: previous initialization is here
vupdate_int_entry(1),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:412:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(2),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:406:2:
note: previous initialization is here
vupdate_int_entry(2),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:413:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(3),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:407:2:
note: previous initialization is here
vupdate_int_entry(3),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:414:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(4),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:408:2:
note: previous initialization is here
vupdate_int_entry(4),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:415:2:
warning: initializer overrides prior initialization of this subobject
[-Winitializer-overrides]
vupdate_no_lock_int_entry(5),
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:280:39:
note: expanded from macro 'vupdate_no_lock_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:409:2:
note: previous initialization is here
vupdate_int_entry(5),
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn21/irq_service_dcn21.c:269:39:
note: expanded from macro 'vupdate_int_entry'
[DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
^~
6 warnings generated.
Fixes: 688f97ed3f5e ("drm/amd/display: Add vupdate_no_lock interrupts for DCN2.1")
Signed-off-by: Maíra Canal <maira.canal@usp.br>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 128f8ed5902a287a6bb4afe0ffdae8a80b2a64ec ]
[Why]
When display topology changed on DSC hub we add all crtcs with dsc support to
atomic state.
Refer to patch:"drm/amd/display: Trigger modesets on MST DSC connectors"
However the original implementation may skip crtc if the topology change
caused by unplug.
That potentially could lead to no-lightup or corruption on DSC hub after
unplug event on one of the connectors.
[How]
Update add_affected_mst_dsc_crtcs() to use old connector state
if new connector state has no crtc (undergoes modeset due to unplug)
Fixes: 44be939ff7ac58 ("drm/amd/display: Trigger modesets on MST DSC connectors")
Reviewed-by: Hersen Wu <hersenwu@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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amdgpu_dm_connector_add_common_modes()
[ Upstream commit 588a70177df3b1777484267584ef38ab2ca899a2 ]
In amdgpu_dm_connector_add_common_modes(), amdgpu_dm_create_common_mode()
is assigned to mode and is passed to drm_mode_probed_add() directly after
that. drm_mode_probed_add() passes &mode->head to list_add_tail(), and
there is a dereference of it in list_add_tail() without recoveries, which
could lead to NULL pointer dereference on failure of
amdgpu_dm_create_common_mode().
Fix this by adding a NULL check of mode.
This bug was found by a static analyzer.
Builds with 'make allyesconfig' show no new warnings,
and our static analyzer no longer warns about this code.
Fixes: e7b07ceef2a6 ("drm/amd/display: Merge amdgpu_dm_types and amdgpu_dm")
Signed-off-by: Zhou Qingyang <zhou1615@umn.edu>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 75478b3b393bcbdca4e6da76fe3a9f1a4133ec5d ]
The current code, when parsing the EDID Deep Color depths, that the
YUV422 cannot be used, referring to the HDMI 1.3 Specification.
This specification, in its section 6.2.4, indeed states:
For each supported Deep Color mode, RGB 4:4:4 shall be supported and
optionally YCBCR 4:4:4 may be supported.
YCBCR 4:2:2 is not permitted for any Deep Color mode.
This indeed can be interpreted like the code does, but the HDMI 1.4
specification further clarifies that statement in its section 6.2.4:
For each supported Deep Color mode, RGB 4:4:4 shall be supported and
optionally YCBCR 4:4:4 may be supported.
YCBCR 4:2:2 is also 36-bit mode but does not require the further use
of the Deep Color modes described in section 6.5.2 and 6.5.3.
This means that, even though YUV422 can be used with 12 bit per color,
it shouldn't be treated as a deep color mode.
This is also broken with YUV444 if it's supported by the display, but
DRM_EDID_HDMI_DC_Y444 isn't set. In such a case, the code will clear
color_formats of the YUV444 support set previously in
drm_parse_cea_ext(), but will not set it back.
Since the formats supported are already setup properly in
drm_parse_cea_ext(), let's just remove the code modifying the formats in
drm_parse_hdmi_deep_color_info()
Fixes: d0c94692e0a3 ("drm/edid: Parse and handle HDMI deep color modes.")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220120151625.594595-3-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 96211b7c56b109a52768e6cc5e23a1f79316eca0 ]
If the probe fails, we should use pm_runtime_disable() to balance
pm_runtime_enable().
Add missing pm_runtime_disable() for __dw_mipi_dsi_probe.
Fixes: 46fc51546d44 ("drm/bridge/synopsys: Add MIPI DSI host controller bridge")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220105104113.31415-1-linmq006@gmail.com
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 7c442e76c06cb1bef16a6c523487438175584eea ]
rc_dev is allocated by rc_allocate_device(), and doesn't assigned to
ctx->rc_dev before calling rc_free_device(ctx->rc_dev).
So it should call rc_free_device(rc_dev);
Fixes: e25f1f7c94e1 ("drm/bridge/sii8620: add remote control support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211227092522.21755-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 5662abf6e21338be6d085d6375d3732ac6147fd2 upstream.
Tag code stored in bit7:5 for CTA block byte[3] is not the same as
CEA extension block definition. Only check CEA block has
basic audio support.
v3: update commit message.
Cc: stable@vger.kernel.org
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Shawn C Lee <shawn.c.lee@intel.com>
Cc: intel-gfx <intel-gfx@lists.freedesktop.org>
Signed-off-by: Cooper Chiou <cooper.chiou@intel.com>
Signed-off-by: Lee Shawn C <shawn.c.lee@intel.com>
Fixes: e28ad544f462 ("drm/edid: parse CEA blocks embedded in DisplayID")
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220324061218.32739-1-shawn.c.lee@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit fc1b6ef7bfb3d1d4df868b1c3e0480cacda6cd81 ]
The Innolux G070Y2-L01 supports two modes of operation:
1) FRC=Low/NC ... MEDIA_BUS_FMT_RGB666_1X7X3_SPWG ... BPP=6
2) FRC=High ..... MEDIA_BUS_FMT_RGB888_1X7X4_SPWG ... BPP=8
Currently the panel description mixes both, BPP from 1) and bus
format from 2), which triggers a warning at panel-simple.c:615.
Pick the later, set bpp=8, fix the warning.
Fixes: a5d2ade627dca ("drm/panel: simple: Add support for Innolux G070Y2-L01")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Christoph Fritz <chf.fritz@googlemail.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Maxime Ripard <maxime@cerno.tech>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220220040718.532866-1-marex@denx.de
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 62929726ef0ec72cbbe9440c5d125d4278b99894 ]
VRR capable property is not attached by default to the connector
It is attached only if VRR is supported.
So if the driver tries to call drm core set prop function without
it being attached that causes NULL dereference.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225013055.9282-1-manasi.d.navare@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9470c29faa91c804aa04de4c10634bf02462bfa5 ]
It turns out that DE3 manual has inverted YUV and YVU format numbers for
P010 and P210. Invert them.
This was tested by playing video decoded to P010 and additionally
confirmed by looking at BSP driver source.
Fixes: 169ca4b38932 ("drm/sun4i: Add separate DE3 VI layer formats")
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220228181436.1424550-1-jernej.skrabec@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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This reverts commit c9ec3d85c0eef7c71cdc68db758e0f0e378132c0.
This commit causes a regression if 4cdd2450bf739bada353e82d27b00db9af8c3001
is not applied as well. This was fixed for 5.16, 5.15 and 5.10.
On older stable branches backporting this commit is complicated as relevant
code changed quite a bit. Furthermore most of the affected hardware barely
works on those and users would want to use the newer kernels anyway.
Cc: stable@vger.kernel.org # 5.4 4.19 and 4.14
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Lyude Paul <lyude@redhat.com>
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/149
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ecbd4912a693b862e25cba0a6990a8c95b00721e upstream.
In order to fill the drm_display_info structure each time an EDID is
read, the code currently will call drm_add_display_info with the parsed
EDID.
drm_add_display_info will then call drm_reset_display_info to reset all
the fields to 0, and then set them to the proper value depending on the
EDID.
In the color_formats case, we will thus report that we don't support any
color format, and then fill it back with RGB444 plus the additional
formats described in the EDID Feature Support byte.
However, since that byte only contains format-related bits since the 1.4
specification, this doesn't happen if the EDID is following an earlier
specification. In turn, it means that for one of these EDID, we end up
with color_formats set to 0.
The EDID 1.3 specification never really specifies what it means by RGB
exactly, but since both HDMI and DVI will use RGB444, it's fairly safe
to assume it's supposed to be RGB444.
Let's move the addition of RGB444 to color_formats earlier in
drm_add_display_info() so that it's always set for a digital display.
Fixes: da05a5a71ad8 ("drm: parse color format support for digital displays")
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220203115416.1137308-1-maxime@cerno.tech
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f626dd0ff05043e5a7154770cc7cda66acee33a3 upstream.
MMHUB PG needs to be disabled for Picasso for stability reasons.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit c0cfbb122275da1b726481de5a8cffeb24e6322b ]
The driver returns an error when devm_phy_optional_get() fails leaving
the previously enabled clock turned on. Change order and enable the
clock only after the phy has been acquired.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220126145549.617165-3-s.hauer@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 364438fd629f7611a84c8e6d7de91659300f1502 upstream.
The iMac 12,1 does not use the gmux driver for backlight, so the radeon
backlight device is needed to set the brightness.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1838
Signed-off-by: Nicholas Bishop <nicholasbishop@google.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit e8ae38720e1a685fd98cfa5ae118c9d07b45ca79 ]
We probably never trigger this, but the logic inside the check is
inverted.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d3cbc6e323c9299d10c8d2e4127c77c7d05d07b1 ]
The 1Netbook OneXPlayer uses a panel which has been mounted
90 degrees rotated. Add a quirk for this.
Signed-off-by: Raymond Jay Golo <rjgolo@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220113000619.90988-1-rjgolo@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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commit 90a3d22ff02b196d5884e111f39271a1d4ee8e3e upstream.
Smatch detected a divide by zero bug in check_overlay_scaling().
drivers/gpu/drm/i915/display/intel_overlay.c:976 check_overlay_scaling()
error: potential divide by zero bug '/ rec->dst_height'.
drivers/gpu/drm/i915/display/intel_overlay.c:980 check_overlay_scaling()
error: potential divide by zero bug '/ rec->dst_width'.
Prevent this by ensuring that the dst height and width are non-zero.
Fixes: 02e792fbaadb ("drm/i915: implement drmmode overlay support v4")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220124122409.GA31673@kili
(cherry picked from commit cf5b64f7f10b28bebb9b7c9d25e7aee5cbe43918)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a upstream.
Bounds checking when parsing init scripts embedded in the BIOS reject
access to the last byte. This causes driver initialization to fail on
Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working
console.
This is probably only seen on OpenFirmware machines like PowerPC Macs
because the BIOS image provided by OF is only the used parts of the ROM,
not a power-of-two blocks read from PCI directly so PCs always have
empty bytes at the end that are never accessed.
Signed-off-by: Nick Lopez <github@glowingmonkey.org>
Fixes: 4d4e9907ff572 ("drm/nouveau/bios: guard against out-of-bounds accesses to image")
Cc: <stable@vger.kernel.org> # v4.10+
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220122081906.2633061-1-github@glowingmonkey.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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