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If the user space doesn't read the EU stall data fast enough,
it is possible that the EU stall data buffer can get filled,
and if the hardware wants to write more data, it simply drops
data due to unavailable buffer space. In that case, hardware
sets a bit in a register. If the driver detects data drop,
the driver read() returns -EIO error to let the user space
know that HW has dropped data. The -EIO error is returned
even if there is EU stall data in the buffer. A subsequent
read by the user space returns the remaining EU stall data.
v12: Move 'goto exit_drop;' to the next
'if (read_data_size == 0)' statement.
v11: Clear drop bit even for empty data buffer as the data
was read from the buffer in the previous read.
v10: Reverted the changes back to v8:
Clear the drop bits only after reading the data.
v9: Move all data drop handling code to this patch
Clear all drop data bits before returning -EIO.
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/6fbfd7cfa42cb3ef5515b6412573d74c7cd3d27a.1740533885.git.harish.chegondi@intel.com
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Implement the EU stall sampling APIs to read() and poll() EU stall data.
A work function periodically polls the EU stall data buffer write pointer
registers to look for any new data and caches the write pointer. The read
function compares the cached read and write pointers and copies any new
data to the user space.
v11: Used gt->eu_stall->stream_lock instead of stream->buf_lock.
Removed read and write offsets from trace and added read size.
Moved workqueue from struct xe_eu_stall_data_stream to
struct xe_eu_stall_gt.
v10: Used cancel_delayed_work_sync() instead of flush_delayed_work()
Replaced per xecore lock with a lock for all the xecore buffers
Code movement and optimizations as per review feedback
v9: New patch split from the previous patch.
Used *_delayed_work functions instead of hrtimer
Addressed the review feedback in read and poll functions
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/369dee85a3b6bd2c08aeae89ca55e66a9a0242d2.1740533885.git.harish.chegondi@intel.com
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Implement EU stall sampling APIs introduced in the previous patch for
Xe_HPC (PVC). Add register definitions and the code that accesses these
registers to the APIs.
Add initialization and clean up functions and their implementations,
EU stall enable and disable functions.
v11: Move stream->xecore_buf alloc to xe_eu_stall_data_buf_alloc().
Register xe_eu_stall_fini() with devm_add_action_or_reset()
instead of calling it from xe_gt_fini().
Changed a couple of variables in struct xe_eu_stall_data_stream
from unsigned int to int.
v10: Fixed error rewinding code
Moved code around as per review feedback
v9: Moved structure definitions from xe_eu_stall.h to xe_eu_stall.c
Moved read and poll implementations to the next patch
Used xe_bo_create_pin_map_at_aligned instead of xe_bo_create_pin_map
Changed lock names as per review feedback
Moved drop data handling into a subsequent patch
Moved code around as per review feedback
v8: Updated copyright year in xe_eu_stall_regs.h to 2025.
Renamed struct drm_xe_eu_stall_data_pvc to struct xe_eu_stall_data_pvc
since it is a local structure.
v6: Fix buffer wrap around over write bug (Matt Olson)
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b6aeca593d521828a0b4fbf6cfd2844716c4fc66.1740533885.git.harish.chegondi@intel.com
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A new hardware feature first introduced in PVC gives capability to
periodically sample EU stall state and record counts for different stall
reasons, on a per IP basis, aggregate across all EUs in a subslice and
record the samples in a buffer in each subslice. Eventually, the aggregated
data is written out to a buffer in the memory. This feature is also
supported in XE2 and later architecture GPUs.
Use an existing IOCTL - DRM_IOCTL_XE_OBSERVATION as the interface into the
driver from the user space to do initial setup and obtain a file descriptor
for the EU stall data stream. Input parameter to the IOCTL is a struct
drm_xe_observation_param in which observation_type should be set to
DRM_XE_OBSERVATION_TYPE_EU_STALL, observation_op should be
DRM_XE_OBSERVATION_OP_STREAM_OPEN and param should point to a chain of
drm_xe_ext_set_property structures in which each structure has a pair of
property and value. The EU stall sampling input properties are defined in
drm_xe_eu_stall_property_id enum.
With the file descriptor obtained from DRM_IOCTL_XE_OBSERVATION, user space
can enable and disable EU stall sampling with the IOCTLs:
DRM_XE_OBSERVATION_IOCTL_ENABLE and DRM_XE_OBSERVATION_IOCTL_DISABLE.
User space can also call poll() to check for availability of data in the
buffer. The data can be read with read(). Finally, the file descriptor
can be closed with close().
v11: Changed a couple of variables in struct eu_stall_open_properties
from unsigned int to int.
v10: Use extension number while parsing chain of extensions.
Remove function description for static functions.
Move code around as per review feedback.
v9: Changed some u32 to unsigned int.
Moved some code around as per review feedback from v8.
v8: Used div_u64 instead of / to fix 32-bit build issue.
Changed copyright year in xe_eu_stall.c/h to 2025.
v7: Renamed input property DRM_XE_EU_STALL_PROP_EVENT_REPORT_COUNT
to DRM_XE_EU_STALL_PROP_WAIT_NUM_REPORTS to be consistent with
OA. Renamed the corresponding internal variables.
Fixed some commit messages based on review feedback.
v6: Change the input sampling rate to GPU cycles instead of
GPU cycles multiplier.
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bb707a27975c33e4a912b9839b023acb7a1f9c90.1740533885.git.harish.chegondi@intel.com
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a mask
Last enabled DSS in a DSS mask can help estimate the maximum DSSes enabled
in the DSS mask, as the enabled DSSes can be discontiguous.
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/79944bb27eb4f7ce5df01f964aebbf431b3a6c61.1740533885.git.harish.chegondi@intel.com
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Keep user-forced connector status even if it cannot be programmed. Same
behavior as for the rest of the drivers.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250114100214.195386-1-tzimmermann@suse.de
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In the case where a set of checks on xe->info.platform don't assign
a value to pointer def the pointer remains uninitialized and hence
can fail the following !def check. Fix this be ensuring pointer
def is initialized to NULL.
Fixes: 292b1a8a5054 ("drm/xe: Stop ignoring errors from xe_heci_gsc_init()")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250226160524.566074-1-colin.i.king@gmail.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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The fault handler is supposed to return true when it
handles the fault. The pipeDMC and ATS handlers are
returning false instead which results in the
"unreported faults" WARN triggering when it shouldn't.
Fixes: f13011a79999 ("drm/i915: Pimp display fault reporting")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250224173017.29500-1-ville.syrjala@linux.intel.com
Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
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Refactor Wa_18013179988, Wa_14015568240, Wa_1508761755, and
Wa_1509372804, to use the proper workaround-check implementation for
out-of-band workarounds, XE_WA(), and drop the use of the platform
based WA selection.
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250220094645.358647-3-aradhya.bhatia@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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Wa_16021333562 and Wa_14016712196 are permanent workarounds that apply
to multiple platforms. Wa_16021333562 applies to platforms ranging from
TGL (12.00) to Xe_LPM (13.00), while Wa_14016712196 from DG2 (12.55) to
Xe_LPG (12.74).
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250220094645.358647-2-aradhya.bhatia@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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The DRM and KMS frameworks and helpers gain more and more kunit
coverage, so let's document what our expectations are.
Suggested-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Maíra Canal <mcanal@igalia.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113101100.1373856-1-mripard@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Replace platform_get_resource_byname + devm_ioremap_resource
with just devm_platform_ioremap_resource()
Used Coccinelle to do this change. SmPl patch:
//rule s/(devm_)platform_get_resource_byname +
//(devm_)ioremap/devm_platform_ioremap_resource.
@rule_3@
identifier res;
expression ioremap;
identifier pdev;
constant mem;
expression name;
@@
-struct resource *res;
<+...
-res = platform_get_resource_byname(pdev,mem,name);
<...
-if (!res) {
-...
-}
...>
-ioremap = devm_ioremap(...);
+ioremap = devm_platform_ioremap_resource_byname(pdev,name);
...+>
v2: Change the SmPl patch to work on multiple occurences of
the pattern. This also fixes the compilation error.
v3: Do not convert "hd" resource to follow the rest of the
refactor. (Maxime)
v4: fix compiler error
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Dave Stevenson <dave.stevenson@raspberrypi.com>
Cc: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-11-9d0e8761107a@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Replace platform_get_resource + devm_ioremap_resource
with just devm_platform_ioremap_resource()
Used Coccinelle to do this change. SmPl patch:
@rule_1@
identifier res;
expression ioremap_res;
identifier pdev;
@@
-struct resource *res;
...
-res = platform_get_resource(pdev,...);
-ioremap_res = devm_ioremap_resource(...);
+ioremap_res = devm_platform_ioremap_resource(pdev,0);
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-10-9d0e8761107a@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Replace platform_get_resource + devm_ioremap_resource
with just devm_platform_ioremap_resource()
Used Coccinelle to do this change. SmPl patch:
@rule_1@
identifier res;
expression ioremap_res;
identifier pdev;
@@
-struct resource *res;
...
-res = platform_get_resource(pdev,...);
-ioremap_res = devm_ioremap_resource(...);
+ioremap_res = devm_platform_ioremap_resource(pdev,0);
Cc: Yannick Fertre <yannick.fertre@foss.st.com>
Cc: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Cc: Philippe Cornu <philippe.cornu@foss.st.com>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Acked-by: Raphaël Gallais-Pou <raphael.gallais-pou@foss.st.com>
Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-8-9d0e8761107a@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Replace platform_get_resource + devm_ioremap_resource
with just devm_platform_ioremap_resource()
Used Coccinelle to do this change. SmPl patch:
@rule_1@
identifier res;
expression ioremap_res;
identifier pdev;
@@
-struct resource *res;
...
-res = platform_get_resource(pdev,...);
-ioremap_res = devm_ioremap_resource(...);
+ioremap_res = devm_platform_ioremap_resource(pdev,0);
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-4-9d0e8761107a@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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Replace platform_get_resource + devm_ioremap_resource
with just devm_platform_ioremap_resource()
Used Coccinelle to do this change. SmPl patch:
@rule_1@
identifier res;
expression ioremap_res;
identifier pdev;
@@
-struct resource *res;
...
-res = platform_get_resource(pdev,...);
-ioremap_res = devm_ioremap_resource(...);
+ioremap_res = devm_platform_ioremap_resource(pdev,0);
Cc: Joel Stanley <joel@jms.id.au>
Acked-by: Andrew Jeffery <andrew@codeconstruct.com.au>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-1-9d0e8761107a@redhat.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
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If a data sector on an OFS floppy contains a value > 0x1e8 (the
largest amount of data that fits in the sector after its header), then
an Amiga reading the file can return corrupt data, by taking the
overlarge size at its word and reading past the end of the buffer it
read the disk sector into!
The cause: when affs_write_end_ofs() writes data to an OFS filesystem,
the new size field for a data block was computed by adding the amount
of data currently being written (into the block) to the existing value
of the size field. This is correct if you're extending the file at the
end, but if you seek backwards in the file and overwrite _existing_
data, it can lead to the size field being larger than the maximum
legal value.
This commit changes the calculation so that it sets the size field to
the max of its previous size and the position within the block that we
just wrote up to.
Signed-off-by: Simon Tatham <anakin@pobox.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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If I write a file to an OFS floppy image, and try to read it back on
an emulated Amiga running Workbench 1.3, the Amiga reports a disk
error trying to read the file. (That is, it's unable to read it _at
all_, even to copy it to the NIL: device. It isn't a matter of getting
the wrong data and being unable to parse the file format.)
This is because the 'sequence number' field in the OFS data block
header is supposed to be based at 1, but affs writes it based at 0.
All three locations changed by this patch were setting the sequence
number to a variable 'bidx' which was previously obtained by dividing
a file position by bsize, so bidx will naturally use 0 for the first
block. Therefore all three should add 1 to that value before writing
it into the sequence number field.
With this change, the Amiga successfully reads the file.
For data block reference: https://wiki.osdev.org/FFS_(Amiga)
Signed-off-by: Simon Tatham <anakin@pobox.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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After commit 92cadedd9d5f ("brcmfmac: Avoid keeping power to SDIO card
unless WOWL is used"), the wifi adapter by default is turned off on
suspend and then re-probed on resume.
This conflicts with some embedded boards that require to remain powered.
They will fail on resume with:
brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
ieee80211 phy1: brcmf_bus_started: failed: -110
ieee80211 phy1: brcmf_attach: dongle is not responding: err=-110
brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed
This commit checks for the Device Tree property 'cap-power-off-cards'.
If this property is not set, it means that we do not have the capability
to power off and should therefore remain powered.
Signed-off-by: Matthias Proske <email@matthias-proske.de>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250212185941.146958-2-email@matthias-proske.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Use rcu_access_pointer() to avoid sparse warning in
drv_remove_interface().
Signed-off-by: Alexander Wetzel <Alexander@wetzel-home.de>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202502130534.bVrZZBK0-lkp@intel.com/
Fixes: 646262c71aca ("wifi: mac80211: remove debugfs dir for virtual monitor")
Link: https://patch.msgid.link/20250213214330.6113-1-Alexander@wetzel-home.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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If there's any vendor-specific element in the subelements
then the outer element parsing must not parse any vendor
element at all. This isn't implemented correctly now due
to parsing into the pointers and then overriding them, so
explicitly skip vendor elements if any exist in the sub-
elements (non-transmitted profile or per-STA profile).
Fixes: 671042a4fb77 ("mac80211: support non-inheritance element")
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250221112451.fd71e5268840.I9db3e6a3367e6ff38d052d07dc07005f0dd3bd5c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The code is erroneously applying the non-inheritance element
to the inner elements rather than the outer, which is clearly
completely wrong. Fix it by finding the MLE basic element at
the beginning, and then applying the non-inheritance for the
outer parsing.
While at it, do some general cleanups such as not allowing
callers to try looking for a specific non-transmitted BSS
and link at the same time.
Fixes: 45ebac4f059b ("wifi: mac80211: Parse station profile from association response")
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250221112451.b46d42f45b66.If5b95dc3c80208e0c62d8895fb6152aa54b6620b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.14
More driver specific fixes, the firmware change is part of fixing the
race conditions in the Cirrus driver.
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This fixes a regression introduced a few weeks ago in stable kernels
6.12.14 and 6.13.3. The internal microphone on ASUS Vivobook N705UD /
X705UD laptops is broken: the microphone appears in userspace (e.g.
Gnome settings) but no sound is detected.
I bisected it to commit 3b4309546b48 ("ALSA: hda: Fix headset detection
failure due to unstable sort").
I figured out the cause:
1. The initial pins enabled for the ALC256 driver are:
cfg->inputs == {
{ pin=0x19, type=AUTO_PIN_MIC,
is_headset_mic=1, is_headphone_mic=0, has_boost_on_pin=1 },
{ pin=0x1a, type=AUTO_PIN_MIC,
is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 } }
2. Since 2017 and commits c1732ede5e8 ("ALSA: hda/realtek - Fix headset
and mic on several ASUS laptops with ALC256") and 28e8af8a163 ("ALSA:
hda/realtek: Fix mic and headset jack sense on ASUS X705UD"), the
quirk ALC256_FIXUP_ASUS_MIC is also applied to ASUS X705UD / N705UD
laptops.
This added another internal microphone on pin 0x13:
cfg->inputs == {
{ pin=0x13, type=AUTO_PIN_MIC,
is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 },
{ pin=0x19, type=AUTO_PIN_MIC,
is_headset_mic=1, is_headphone_mic=0, has_boost_on_pin=1 },
{ pin=0x1a, type=AUTO_PIN_MIC,
is_headset_mic=0, is_headphone_mic=0, has_boost_on_pin=1 } }
I don't know what this pin 0x13 corresponds to. To the best of my
knowledge, these laptops have only one internal microphone.
3. Before 2025 and commit 3b4309546b48 ("ALSA: hda: Fix headset
detection failure due to unstable sort"), the sort function would let
the microphone of pin 0x1a (the working one) *before* the microphone
of pin 0x13 (the phantom one).
4. After this commit 3b4309546b48, the fixed sort function puts the
working microphone (pin 0x1a) *after* the phantom one (pin 0x13). As
a result, no sound is detected anymore.
It looks like the quirk ALC256_FIXUP_ASUS_MIC is not needed anymore for
ASUS Vivobook X705UD / N705UD laptops. Without it, everything works
fine:
- the internal microphone is detected and records actual sound,
- plugging in a jack headset is detected and can record actual sound
with it,
- unplugging the jack headset makes the system go back to internal
microphone and can record actual sound.
Cc: stable@vger.kernel.org
Cc: Kuan-Wei Chiu <visitorckw@gmail.com>
Cc: Chris Chiu <chris.chiu@canonical.com>
Fixes: 3b4309546b48 ("ALSA: hda: Fix headset detection failure due to unstable sort")
Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Link: https://patch.msgid.link/20250226135515.24219-1-adrienverge@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The i915 core debugfs has no business looking at power domain guts for
runtime power status. Move the info to the more appropriate place.
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250225121742.721871-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Add myself as the maintainer of the recently orphaned repaper and
mi0283qt drivers.
Signed-off-by: Alex Lanzano <lanzano.alex@gmail.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20250210233232.3995143-1-lanzano.alex@gmail.com
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The encoder HW/SW state verification should use a SW state which stays
unchanged while the encoder/output is active. The intel_dp::is_mst flag
used during state computation to choose between the DP SST/MST modes can
change while the output is active, if the sink gets disconnected or the
MST topology is removed for another reason. A subsequent state
verification using intel_dp::is_mst leads then to a mismatch if the
output is disabled/re-enabled without recomputing its state.
Use the encoder's active MST link count instead, which will be always
non-zero for an active MST output and will be zero for SST.
Fixes: 35d2e4b75649 ("drm/i915/ddi: start distinguishing 128b/132b SST and MST at state readout")
Fixes: 40d489fac0e8 ("drm/i915/ddi: handle 128b/132b SST in intel_ddi_read_func_ctl()")
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250224093242.1859583-1-imre.deak@intel.com
(cherry picked from commit 0159e311772af9d6598aafe072c020687720f1d7)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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The async call to __guc_exec_queue_fini_async frees the scheduler
while a submission may time out and restart. To prevent this race
condition, the pending job timer should be canceled before freeing
the scheduler.
V3(MattB):
- Adjust position of cancel pending job
- Remove gitlab issue# from commit message
V2(MattB):
- Cancel pending jobs before scheduler finish
Fixes: a20c75dba192 ("drm/xe: Call __guc_exec_queue_fini_async direct for KERNEL exec_queues")
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250225045754.600905-1-tejas.upadhyay@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
(cherry picked from commit 18fbd567e75f9b97b699b2ab4f1fa76b7cf268f6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Commit b79e8fd954c4 ("drm/xe: Remove dependency on intel_engine_regs.h")
introduced an internal set of engine registers, however, as part of this
change, it has also introduced two duplicate `define' lines for
`RING_CTL_SIZE(size)'. This commit was introduced to the tree in v6.8-rc1.
While this is harmless as the definitions did not change, so no compiler
warning was observed.
Drop this line anyway for the sake of correctness.
Cc: stable@vger.kernel.org # v6.8-rc1+
Fixes: b79e8fd954c4 ("drm/xe: Remove dependency on intel_engine_regs.h")
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250225073104.865230-1-jeffbai@aosc.io
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 6b68c4542ffecc36087a9e14db8fc990c88bb01b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Commit 8c87215dd3a2 ("ata: libahci_platform: support non-consecutive port
numbers") added a skip to ahci_platform_enable_phys() for ports that are
not in mask_port_map.
The code in ahci_platform_get_resources(), will currently set mask_port_map
for each child "port" node it finds in the device tree.
However, device trees that do not have any child "port" nodes will not have
mask_port_map set, and for non-device tree platforms mask_port_map will
only exist as a quirk for specific PCI device + vendor IDs, or as a kernel
module parameter, but will not be set by default.
Therefore, the common thing is that mask_port_map is only set if you do not
want to use all ports (as defined by Offset 0Ch: PI – Ports Implemented
register), but instead only want to use the ports in mask_port_map. If
mask_port_map is not set, all ports are available.
Thus, ahci_ignore_port() must be able to handle an empty mask_port_map.
Fixes: 8c87215dd3a2 ("ata: libahci_platform: support non-consecutive port numbers")
Fixes: 2c202e6c4f4d ("ata: libahci_platform: Do not set mask_port_map when not needed")
Fixes: c9b5be909e65 ("ahci: Introduce ahci_ignore_port() helper")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Closes: https://lore.kernel.org/linux-ide/10b31dd0-d0bb-4f76-9305-2195c3e17670@samsung.com/
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Co-developed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20250225141612.942170-2-cassel@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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There is no recovery mechanism in place yet to recover from mmu
faults for DPU. We can only prevent the faults by making sure there
is no misconfiguration.
Rate-limit the snapshot capture for mmu faults to once per
msm_atomic_commit_tail() as that should be sufficient to capture
the snapshot for debugging otherwise there will be a lot of DPU
snapshots getting captured for the same fault which is redundant
and also might affect capturing even one snapshot accurately.
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/638362/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-5-aa3f0bf4434a@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Switch msm_kms to use msm_iommu_disp_new() so that the newly
registered fault handler will kick-in during any mmu faults.
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638360/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-4-aa3f0bf4434a@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Introduce a new API msm_iommu_disp_new() for display use-cases.
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638363/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-3-aa3f0bf4434a@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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In preparation of registering a separate fault handler for
display, lets rename the existing msm_fault_handler to
msm_gpu_fault_handler.
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638358/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-2-aa3f0bf4434a@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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In preparation to register a iommu fault handler for display
related modules, register a fault handler for the backing
mmu object of msm_kms.
Currently, the fault handler only captures the display snapshot
but we can expand this later if more information needs to be
added to debug display mmu faults.
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638359/
Link: https://lore.kernel.org/r/20250219-abhinavk-smmu-fault-handler-v3-1-aa3f0bf4434a@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Add bitfields for PHY_CMN_CLK_CFG0 and PHY_CMN_CLK_CFG1 registers to
avoid hard-coding bit masks and shifts and make the code a bit more
readable.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/638324/
Link: https://lore.kernel.org/r/20250219-drm-msm-phy-pll-cfg-reg-v5-2-d28973fa513a@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Newly added dsi_pll_cmn_clk_cfg1_update() wrapper protects concurrent
updates to PHY_CMN_CLK_CFG1 register between driver and Common Clock
Framework. pll_7nm_register() still used in one place previous
readl+writel, which can be simplified with this new wrapper.
This is purely for readability and simplification and should have no
functional impact, because the code touched here is before clock is
registered via CCF, so there is no concurrency issue.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/638323/
Link: https://lore.kernel.org/r/20250219-drm-msm-phy-pll-cfg-reg-v5-1-d28973fa513a@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Add check for the return value of devm_kstrdup() in
dsi_host_parse_dt() to catch potential exception.
Fixes: 958d8d99ccb3 ("drm/msm/dsi: parse vsync source from device tree")
Cc: stable@vger.kernel.org
Signed-off-by: Haoxiang Li <haoxiang_li2024@163.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/638297/
Link: https://lore.kernel.org/r/20250219040712.2598161-1-haoxiang_li2024@163.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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The DRM DSC helper has various bits_per_component values - not just 8.
But the DSC 1.1 block supports only 8, 10, and 12. Extend the guard
accordingly and add a comment noting this limitation.
Signed-off-by: Eugene Lepshy <fekz115@gmail.com>
Co-developed-by: Danila Tikhonov <danila@jiaxyga.com>
Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637831/
Link: https://lore.kernel.org/r/20250217222431.82522-4-danila@jiaxyga.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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When DSC is enabled the number of interfaces is forced to be 1, and
documented that it is a "power-optimal" layout to use two DSC encoders
together with two Layer Mixers. However, the same layout (two DSC
hard-slice encoders with two LMs) is also used when the display is
fed with data over two instead of one interface (common on 4k@120Hz
smartphone panels with Dual-DSI). Solve this by simply removing the
num_intf = 1 assignment as the count is already calculated by computing
the number of physical encoders within the virtual encoder.
Fixes: 7e9cc175b159 ("drm/msm/disp/dpu1: Add support for DSC in topology")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/637649/
Link: https://lore.kernel.org/r/20250217-drm-msm-initial-dualpipe-dsc-fixes-v3-3-913100d6103f@somainline.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Ordering issues here cause an uninitialized (default STANDALONE)
usecase to be programmed (which appears to be a MUX) in some cases
when msm_dsi_host_register() is called, leading to the slave PLL in
bonded-DSI mode to source from a clock parent (dsi1vco) that is off.
This should seemingly not be a problem as the actual dispcc clocks from
DSI1 that are muxed in the clock tree of DSI0 are way further down, this
bit still seems to have an effect on them somehow and causes the right
side of the panel controlled by DSI1 to not function.
In an ideal world this code is refactored to no longer have such
error-prone calls "across subsystems", and instead model the "PLL src"
register field as a regular mux so that changing the clock parents
programmatically or in DTS via `assigned-clock-parents` has the
desired effect.
But for the avid reader, the clocks that we *are* muxing into DSI0's
tree are way further down, so if this bit turns out to be a simple mux
between dsiXvco and out_div, that shouldn't have any effect as this
whole tree is off anyway.
Fixes: 57bf43389337 ("drm/msm/dsi: Pass down use case to PHY")
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/637650/
Link: https://lore.kernel.org/r/20250217-drm-msm-initial-dualpipe-dsc-fixes-v3-2-913100d6103f@somainline.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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When configuring the timing of DSI hosts (interfaces) in
dsi_timing_setup() all values written to registers are taking
bonded-mode into account by dividing the original mode width by 2
(half the data is sent over each of the two DSI hosts), but the full
width instead of the interface width is passed as hdisplay parameter to
dsi_update_dsc_timing().
Currently only msm_dsc_get_slices_per_intf() is called within
dsi_update_dsc_timing() with the `hdisplay` argument which clearly
documents that it wants the width of a single interface (which, again,
in bonded DSI mode is half the total width of the mode) resulting in all
subsequent values to be completely off.
However, as soon as we start to pass the halved hdisplay
into dsi_update_dsc_timing() we might as well discard
msm_dsc_get_slices_per_intf() since the value it calculates is already
available in dsc->slice_count which is per-interface by the current
design of MSM DPU/DSI implementations and their use of the DRM DSC
helpers.
Fixes: 08802f515c3c ("drm/msm/dsi: Add support for DSC configuration")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/637648/
Link: https://lore.kernel.org/r/20250217-drm-msm-initial-dualpipe-dsc-fixes-v3-1-913100d6103f@somainline.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Kernel core already prints detailed report about memory allocation
failures, so drivers should not have their own error messages.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637308/
Link: https://lore.kernel.org/r/20250214-drm-msm-cleanups-v2-4-1bec50f37dc1@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Cleanup few obvious kernel coding style violations: missing or
unnecessary braces in 'if-else', unnecessary break lines, incorrect
breaking of long function declarations, unnecessary 'else' after a
'return'. No functional impact expected.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637305/
Link: https://lore.kernel.org/r/20250214-drm-msm-cleanups-v2-3-1bec50f37dc1@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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dsi_get_config(), dsi_clk_init() and msm_dsi_host_init() are called only
from platform driver probe function, so using dev_err_probe() is both
appropriate and beneficial:
- Properly marks device deferred probe status,
- Avoids dmesg flood on probe deferrals,
- Already incorporates printing ERR value,
- Shows device name (in contrast to pr_err()),
- Makes code smaller and simpler.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637306/
Link: https://lore.kernel.org/r/20250214-drm-msm-cleanups-v2-2-1bec50f37dc1@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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dsi_clk_init(), which gets the clocks, is called only through platform
driver probe and its failure is a failure of the probe. Therefore
NULL-ifying specific clocks is pointless and redundant - the PTR_ERR
value stored there won't be used/dereferenced afterwards. What's more,
variant-specific clock init calls like dsi_clk_init_6g_v2() are not
doing this cleanup. Dropping redundant code allows later to make this a
bit simpler.
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637303/
Link: https://lore.kernel.org/r/20250214-drm-msm-cleanups-v2-1-1bec50f37dc1@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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cpu-cfg interconnect paths
The mdp1-mem is not supported on the SM8550 SoCs, and having maxItems=2
makes the bindings not clear if mdp0-mem/mdp1-mem or mdp0-mem/cpu-cfg
is required, so explicitly document the mdp0-mem/cpu-cfg interconnect
paths and complete the example with the missing interconnect paths.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637051/
Link: https://lore.kernel.org/r/20250213-topic-sm8x50-mdss-interconnect-bindings-fix-v4-2-3fa0bc42dd38@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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cpu-cfg interconnect paths
The mdp1-mem is not supported on the SM8550 SoCs, and having maxItems=2
makes the bindings not clear if mdp0-mem/mdp1-mem or mdp0-mem/cpu-cfg is
required, so explicitly document the mdp0-mem/cpu-cfg interconnect and
add the cpu-cfg path in the example.
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/637050/
Link: https://lore.kernel.org/r/20250213-topic-sm8x50-mdss-interconnect-bindings-fix-v4-1-3fa0bc42dd38@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Since SM8250 all downstream sources program clock inverters in
PLL_CLOCK_INVERTERS_1 register and leave the PLL_CLOCK_INVERTERS as
reset value (0x0). The most recent Hardware Programming Guide for 3 nm,
4 nm, 5 nm and 7 nm PHYs also mention PLL_CLOCK_INVERTERS_1.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Fixes: 1ef7c99d145c ("drm/msm/dsi: add support for 7nm DSI PHY/PLL")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reported-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/634489/
Link: https://lore.kernel.org/r/20250129115504.40080-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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Use the header with clock IDs to bind the interface between driver and
DTS.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/634149/
Link: https://lore.kernel.org/r/20250127132105.107138-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
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