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VLV/CHV
Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 500 us sleep instead. The timeout remains at
100 ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/c644b7b5611a3c047ea5d3d52acd91830b2fa6b4.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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DKL PHY
Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 100 us sleep instead. The timeout remains at 1
ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/663c9edf4a98b09121d7200f8d734ebc829da85b.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 100 us sleep instead. The timeout remains at 1
ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/900680516b047ae32e3298b5cdbcede0393e0466.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 500 us sleep instead. The timeout remains at
50 ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/6d50031411d5517508867d4b595ce90a2b44073b.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 500 us sleep instead. The timeout remains at 3
ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/52c80860ea7b98e84f2386ed6cdd761f03190b1e.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The "two tier" wait_for_us() + wait_for() combination appeared without
much explanation in commit 4e6c2d58ba86 ("drm/i915: Take forcewake once
for the entire GMBUS transaction"). Try to mimic roughly the same with
the generic helpers.
wait_for_us() with 10 us or shorter timeouts ends up in
_wait_for_atomic(). Thus use poll_timeout_us_atomic() for the first try,
with the same 2 us timeout and no sleep.
For the fallback, the functional change is losing the exponentially
growing sleep of wait_for(), which used to be 10, 20, 40, ..., 640, and
1280 us. Use an arbitrary constant 500 us sleep instead. The timeout
remains at 50 ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/564b397352c53a1116519fb2d53050c0426bc0dc.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 500 us sleep instead. The timeout remains at
20 ms.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/476fcc5aad9e2ddbf6d8c14bd5ff5cbf071c5dca.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The sleep and timeout remain the same as for wait_for_us().
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/02ebcd2864819b7eaf9cf455aa2b968980a2f671.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
wait_for(), which used to be 10, 20, 40, ..., 640, and 1280 us.
Use an arbitrary constant 100 us sleep instead. The timeout remains at 1
ms.
While at it, use the last failing value for debug logging instead of
reading it again.
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/2871a07337401c25ef3df44073c5e78fedc45e8e.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
__wait_for(), which used to be 1, 2, 4, ... 64, and 128 ms in this
particular case.
Use an arbitrary 100 ms sleep instead. The timeout remains at 5000 ms.
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/bfc9f941ec1628830644f1419d606e3d085aaba0.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Prefer generic poll helpers over i915 custom helpers.
The functional change is losing the exponentially growing sleep of
__wait_for(), which used to be 1, 2, 4, and 8 ms in this particular
case.
Use an arbitrary constant 4 ms sleep instead. The timeout remains,
varying between 20 ms and 3000 ms.
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/fc3a67f9de0049f415a276bba1c11a4df97e01d6.1756383233.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Our drm-based suballocator is implemented per-tile so it is better
to show its debug information also per-tile debugfs directory, not
under per-gt directory as it is done today.
To allow adding more per-tile attributes, prepare necessary helper
functions, like we already did for per-gt or per-uc attributes.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/20250829201106.1263-1-michal.wajdeczko@intel.com
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Use REG_BIT() instead of open coding the shift in the FW_BLC_SELF_*
macro definitions to avoid potentially typing them as 'int'.
For example, this happens when we pass them to _MASKED_BIT_ENABLE(),
because of the typeof() construct there. When we pass 1 << 15 (the
FW_BLC_SELF_EN macro), we get typeof(1 << 15), which is 'int'. Then
the value becomes negative (-2147450880) and we try to assign it to a
'u32'.
In practice this is not a problem though, because when we try to
assign -2147450880 to the u32, that becomes 0x80008000, which was the
intended result.
Link: https://lore.kernel.org/intel-gfx/20250827111109.401604-1-luciano.coelho@intel.com/
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
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The AST_DRAM_ constants belong together, so put them in an enum
type. Rename type and variables to 'drm_layout', as there's already
another DRAM type in the ast driver (AST_DDR2, AST_DDR3).
v2:
- avoid compiler warning with switch default (Dan)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-7-tzimmermann@suse.de
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The only place in the ast driver that uses the DRAM type is the
P2A DRAM initialization for Gen2 and Gen3 of the chip. Condense
the code in ast_get_dram_info() to exactly this use case and move
it into the Gen's custom source file. Remove the field dram_type
from struct ast_device.
The AST_DRAM_ constants are also used in Gen4 POST helpers, but
independently from the dram_type field. No changes there.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-6-tzimmermann@suse.de
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The ast driver used SCU-MPLL and SCU-STRAP to compute the memory
clock. Remove the now unused values.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-5-tzimmermann@suse.de
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The memory clock is not necessary for the driver. In default for
AST2600 is event incorrect; should be 800 MHz. Remove it.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-4-tzimmermann@suse.de
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The DRAM bus width is not necessary for the driver. Remove it.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-3-tzimmermann@suse.de
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Most of the information in the DRAM status output is irrelevant; some
is even wrong. Only the DRAM type is used on some older models. Drop
the output entirely.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250826065032.344412-2-tzimmermann@suse.de
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Add support for the S6 S7 S7D power controller, whose registers are
in the secure domain and should be accessed via SMC.
Signed-off-by: hongyu.chen1 <hongyu.chen1@amlogic.com>
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Link: https://lore.kernel.org/r/20250822-pm-s6-s7-s7d-v1-2-82e3f3aff327@amlogic.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add module and core clocks used by Ethernet Subsystem (Ethernet_SS),
Ethernet MAC (GMAC), Ethernet Switch (ETHSW).
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250904071954.3176806-3-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Replace the ternary operator with a direct boolean comparison to improve
code readability and maintainability. The logic remains unchanged.
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250903082757.115778-5-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Prevent issues during reset deassertion by re-asserting the reset if a
timeout occurs when trying to deassert. This ensures the reset line is in a
known state and improves reliability for hardware that may not immediately
clear the reset monitor bit.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://lore.kernel.org/20250903082757.115778-4-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Prevent issues during reset deassertion by re-asserting the reset if a
timeout occurs when trying to deassert. This ensures the reset line is in a
known state and improves reliability for hardware that may not immediately
clear the reset monitor bit.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://lore.kernel.org/20250903082757.115778-3-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Combine common code from rzg2l_cpg_assert() and rzg2l_cpg_deassert() into a
new __rzg2l_cpg_assert() helper to avoid code duplication. This reduces
maintenance effort and improves code clarity.
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@bp.renesas.com>
Link: https://lore.kernel.org/20250903082757.115778-2-tommaso.merciai.xr@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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hostapd & wpa_supplicant userspace daemons exposes an AP mode specific
config file parameter "ap_isolate" to the user, which is used to control
low-level bridging of frames between the stations associated in the BSS.
In driver, handle this user setting in the newly defined cfg80211_ops
function brcmf_cfg80211_change_bss() by enabling "ap_isolate" IOVAR in
the firmware.
In AP mode, the "ap_isolate" value from the cfg80211 layer represents,
0 = allow low-level bridging of frames between associated stations
1 = restrict low-level bridging of frames to isolate associated stations
-1 = do not change existing setting
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Chi-hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Gokul Sivakumar <gokulkumar.sivakumar@infineon.com>
[arend: indicate ap_isolate support in struct wiphy::bss_param_support]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250817190435.1495094-5-arend.vanspriel@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The command NL80211_CMD_SET_BSS has a number of individual attributes
and the driver can advertise which of those it will handle when it is
changed by user-space. For drivers providing an empty .change_bss()
the callback has been removed.
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Link: https://patch.msgid.link/20250817190435.1495094-3-arend.vanspriel@broadcom.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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An S1G TIM PVB has 3 mandatory encoding modes, that being
block bitmap, single AID and OBL alongside the ability for
each encoding mode to be inverted. Introduce the ability to
parse the 3 encoding formats. The implementation specification
for the encoding formats can be found in IEEE80211-2024 9.4.2.5.
Signed-off-by: Arien Judge <arien.judge@morsemicro.com>
Signed-off-by: Lachlan Hodges <lachlan.hodges@morsemicro.com>
Link: https://patch.msgid.link/20250725132221.258217-3-lachlan.hodges@morsemicro.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next into HEAD
Miri Korenblit says:
====================
iwlwifi features, notably:
- more cleanups of d3 code
- cleanups of the transport layer
====================
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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For ternary operators in the form of a ? true : false, if a itself returns
a boolean result, the ternary operator can be omitted. Remove redundant
ternary operators to clean up the code.
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Call the dedicated v4l2_disable_ioctl helper instead of manually
checking whether the current context is an encoder for the selection
api ioctls.
Signed-off-by: Paul Kocialkowski <paulk@sys-base.io>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The existing imx8m_vpu_g1_irq implementation is an exact copy of the
default hantro_g1_irq one. Switch over to it instead of keeping a
duplicated implementation.
Signed-off-by: Paul Kocialkowski <paulk@sys-base.io>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Support queue ops. fbnic doesn't shut down the entire device
just to restart a single queue.
./tools/testing/selftests/drivers/net/hw/iou-zcrx.py
TAP version 13
1..3
ok 1 iou-zcrx.test_zcrx
ok 2 iou-zcrx.test_zcrx_oneshot
ok 3 iou-zcrx.test_zcrx_rss
# Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
Acked-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-15-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Queue API may ask us to allocate page pools when the device
is down, to validate that we ingested a memory provider binding.
Don't require NAPI to be passed to fbnic_alloc_qt_page_pools(),
to make calling fbnic_alloc_qt_page_pools() without NAPI possible.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-14-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We need to be more careful about when direct page pool recycling
is enabled in preparation for queue ops support. Don't set the
NAPI pointer, call page_pool_enable_direct_recycling() from
the function that activates the queue (once the config can
no longer fail).
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-13-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Allow allocating a page pool with unreadable memory for the payload
ring (sub1). We need to provide the queue ID so that the memory provider
can match the PP. Use the appropriate page pool DMA sync helper.
For unreadable mem the direction has to be FROM_DEVICE. The default
is BIDIR for XDP, but obviously unreadable mem is not compatible
with XDP in the first place, so that's fine. While at it remove
the define for page pool flags.
The rxq_idx is passed to fbnic_alloc_rx_qt_resources() explicitly
to make it easy to allocate page pools without NAPI (see the patch
after the next).
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-12-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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mlx5 pokes into the rxq state to check if the queue has a memory
provider, and therefore whether it may produce unreadable mem.
Add a helper for doing this in the page pool API. fbnic will want
a similar thing (tho, for a slightly different reason).
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-11-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Factor out handling a single nv from fbnic_fill() to make
it reusable for queue ops.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-10-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Factor out handling a single nv from fbnic_enable() to make
it reusable for queue ops. Use a __ prefix for the factored
out code. The real fbnic_nv_enable() which will include
fbnic_wrfl() will be added with the qops, to avoid unused
function warnings.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-9-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Factor out handling a single nv from fbnic_flush() to make
it reusable for queue ops.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-8-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Factor out handling a single nv from fbnic_disable() to make
it reusable for queue ops. Use a __ prefix for the factored
out code. The real fbnic_nv_disable() which will include
fbnic_wrfl() will be added with the qops, to avoid unused
function warnings.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-7-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We'll add queue ops soon so. queue ops will opt the driver into
extra locking. Request this locking explicitly already to make
future patches smaller and easier to review.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-6-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Use netmem_ref instead of struct page pointer in prep for
unreadable memory. fbnic has separate free buffer submission
queues for headers and for data. Refactor the helper which
returns page pointer for a submission buffer to take the
high level queue container, create a separate handler
for header and payload rings. This ties the "upcast" from
netmem to system page to use of sub0 which we know has
system pages.
Reviewed-by: Mina Almasry <almasrymina@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-5-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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page pools are now at the ring level, move page pool alloc
to fbnic_alloc_rx_qt_resources(), and freeing to
fbnic_free_qt_resources().
This significantly simplifies fbnic_alloc_napi_vector() error
handling, by removing a late failure point.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-4-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Move rxq_info and mem model registration from fbnic_alloc_napi_vector()
and fbnic_alloc_nv_resources() to fbnic_alloc_rx_qt_resources().
The rxq_info is now registered later in the process, but that
should not cause any issues.
rxq_info lives in the fbnic_q_triad (qt) struct so qt init is a more
natural place. Encapsulating the logic in the qt functions will also
allow simplifying the cleanup in the NAPI related alloc functions
in the next commit.
Rx does not have a dedicated fbnic_free_rx_qt_resources(),
but we can use xdp_rxq_info_is_reg() to tell whether given
rxq_info was in use (effectively - if it's a qt for an Rx queue).
Having to pass nv into fbnic_alloc_rx_qt_resources() is not
great in terms of layering, but that's temporary, pp will
move soon..
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-3-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In preparation for memory providers we need a closer association
between queues and page pools. We used to have a page pool at the
NAPI level to serve all associated queues but with MP the queues
under a NAPI may no longer be created equal.
The "ring" structure in fbnic is a descriptor ring. We have separate
"rings" for payload and header pages ("to device"), as well as a ring
for completions ("from device"). Technically we only need the page
pool pointers in the "to device" rings, so adding the pointer to
the ring struct is a bit wasteful. But it makes passing the structures
around much easier.
For now both "to device" rings store a pointer to the same
page pool. Using more than one queue per NAPI is extremely rare
so don't bother trying to share a single page pool between queues.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250901211214.1027927-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Commit 4a81656c8eaa ("arm64: dts: mediatek: mt8188: Address binding
warnings for MDP3 nodes") caused a regression on the MDP functionality
when it removed the MT8195 compatibles from the MDP3 nodes, since the
MT8188 compatible was not yet listed as a possible MDP component
compatible in mdp_comp_dt_ids. This resulted in an empty output
bitstream when using the MDP from userspace, as well as the following
errors:
mtk-mdp3 14001000.dma-controller: Uninit component inner id 4
mtk-mdp3 14001000.dma-controller: mdp_path_ctx_init error 0
mtk-mdp3 14001000.dma-controller: CMDQ sendtask failed: -22
Add the missing compatible to the array to restore functionality.
Fixes: 4a81656c8eaa ("arm64: dts: mediatek: mt8188: Address binding warnings for MDP3 nodes")
Cc: stable@vger.kernel.org
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add Flydigi Apex 5 to the list of recognized controllers.
Reported-by: Brandon Lin <brandon@emergence.ltd>
Reported-by: Sergey Belozyorcev <belozyorcev@ya.ru>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
Link: https://lore.kernel.org/r/20250903165114.2987905-1-lkml@antheas.dev
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The .querystd callback should not program the device with the detected
standard, it should only report the standard to user-space. User-space
may then use .s_std to set the standard, if it wants to use it.
All that is required of .querystd is to setup the auto detection of
standards and report its findings.
While at it add some documentation on why this can't happen while
streaming and improve the error handling using a scoped guard.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The .s_std callback should not write the new format directly do the
device, it should only store it and have it applied by .s_stream.
As .s_stream already calls adv7180_program_std() all that is needed
is to check the standard is valid, and store it for .s_stream to
program.
While at it add a scoped guard to simplify the error handling.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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