Allow reading and writing gmux ports from userspace.
For example:
echo 4 > /sys/kernel/debug/apple_gmux/selected_port
cat /sys/kernel/debug/apple_gmux/selected_port_data | xxd -p
Will show the gmux version information (00000005 in this case)
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Link: https://lore.kernel.org/r/20230303112842.3094-5-orlandoch.dev@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
In some newer dual gpu MacBooks, the T2 Coprocessor functions as the
gmux, and the Intel side can interract with this new gmux type through
MMIO. Add support for these gmux controllers to the apple-gmux driver.
We start using the GMSP(0) acpi method on these gmux's when clearing
interrupts, as this prevents a flood of status=0 interrupts that can't
be cleared. It's unknown if this helps or hinders older gmux types, so
it isn't enabled for those.
Interestingly, the ACPI table only allocates 8 bytes for GMUX, but we
actually need 16, and as such we request 16 with request_mem_region.
Reading and writing from ports:
16 bytes from 0xfe0b0200 are used. 0x0 to 0x4 are where data
to read appears, and where data to write goes. Writing to 0xe
sets the gmux port being accessed, and writing to 0xf sends commands.
These commands are 0x40 & data_length for write, and data_length for
read, where data_length is 1, 2 or 4. Once byte base+0xf is 0, the
command is done.
Issues:
As with other retina models, we can't switch DDC lines so
switching at runtime doesn't work if the inactive gpu driver
already disabled eDP due to it not being connected when that
driver loaded.
Additionally, turning on the dgpu back on on the MacBookPro16,1 does
not work.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Link: https://lore.kernel.org/r/20230303112842.3094-4-orlandoch.dev@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add apple_gmux_config struct containing operations and data specific to
each mux type.
This is in preparation for adding a third, MMIO based, gmux type.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Link: https://lore.kernel.org/r/20230303112842.3094-3-orlandoch.dev@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
On T2 Macs with MMIO gmux, when GMUX_PORT_SWITCH_DISPLAY is read, it can
have values of 2, 3, 4, and 5. Odd values correspond to the discrete gpu,
and even values correspond to the integrated gpu. The current logic is
that only 2 corresponds to IGD, but this doesn't work for T2 Macs.
Instead, check the first bit to determine the connected gpu.
As T2 Macs with gmux only can switch the internal display, it is
untested if this change (or a similar change) would be applicable
to GMUX_PORT_SWITCH_DDC and GMUX_PORT_SWITCH_EXTERNAL.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Orlando Chamberlain <orlandoch.dev@gmail.com>
Link: https://lore.kernel.org/r/20230303112842.3094-2-orlandoch.dev@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add tabs/spaces in conditional statements in to fix the
indentation.
Signed-off-by: Sumitra Sharma <sumitraartsy@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/20230314121152.GA38979@sumitra.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It's cleaner to set "j = -1;" before the if block and remove the else
statement.
Signed-off-by: Archana <craechal@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/20230311121253.10225-2-craechal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is cleaner to use "goto free_result;" as is being followed
in rest of the implementation of writeimage function, and
remove unnecessary kfree statements.
Signed-off-by: Archana <craechal@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/20230311121253.10225-1-craechal@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function rtw_get_raw_rssi_info() is not used anywhere, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230310083449.23775-6-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function linked_info_dump() is not used anywhere, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230310083449.23775-5-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function isAllSpaceOrTab() is not used anywhere, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230310083449.23775-4-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function ParseQualifiedString() is not used anywhere, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230310083449.23775-3-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The function MapCharToHexDigit() is not used anywhere, remove it.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230310083449.23775-2-straube.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove function rtl92e_is_legal_rf_path that will always return 1. Reason
is that the eRFPath is always 0 for RF90_PATH_A or 1 for RF90_PATH_B but
never 2 or 3. In most usage cases this is easy to see but for the
following functions that use rtl92e_is_legal_rf_path it is more
difficult:
rtl92e_set_rf_reg and rtl92e_get_rf_reg are used in:
rtl92e_set_bandwidth (eRFPath only for 0 and 1)
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_phy_switch_channel_step (eRFPath only for 0 and 1)
_rtl92e_dm_check_tx_power_tracking_thermal (eRFPath only for 0)
rtl92e_check_bb_and_rf is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_bb_config_para_file (eRFPath only for 0)
rtl92e_config_rf_path is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
Remove dead code.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/b801f1f9ff3c58aedab4e3e07b2ec0a816fdf5d9.1678740713.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused priv->phy_reg_def[RF90_PATH_C].rfHSSIPara2 and
priv->phy_reg_def[RF90_PATH_D].rfHSSIPara2.
rfHSSIPara2 is used in rtl92e_set_bb_reg which is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_phy_rf_read which is used in:
rtl92e_set_rf_reg and rtl92e_get_rf_reg are used in:
rtl92e_set_bandwidth (eRFPath only for 0 and 1)
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_phy_switch_channel_step (eRFPath only for 0 and 1)
_rtl92e_dm_check_tx_power_tracking_thermal (eRFPath only for 0)
rtl92e_check_bb_and_rf is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_bb_config_para_file (eRFPath only for 0)
rtl92e_config_rf_path is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
Remove dead code and constants.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/186f3e59e736de6fd2111e835cdb4b633ca41bbc.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused priv->phy_reg_def[RF90_PATH_C].rfLSSIReadBack and
priv->phy_reg_def[RF90_PATH_D].rfLSSIReadBack.
rfLSSIReadBack is used in:
_rtl92e_phy_rf_read which is used in:
rtl92e_set_rf_reg and rtl92e_get_rf_reg are used in:
rtl92e_set_bandwidth (eRFPath only for 0 and 1)
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_phy_switch_channel_step (eRFPath only for 0 and 1)
_rtl92e_dm_check_tx_power_tracking_thermal (eRFPath only for 0)
rtl92e_check_bb_and_rf is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_bb_config_para_file (eRFPath only for 0)
rtl92e_config_rf_path is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
Remove dead code and constants.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/622777b394a896b6db08eb7faeb455e5cbeae93f.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused priv->phy_reg_def[RF90_PATH_C].rf3wireOffset and
priv->phy_reg_def[RF90_PATH_D].rf3wireOffset.
rf3wireOffset is used in _rtl92e_phy_rf_read and _rtl92e_phy_rf_write
which are used in:
rtl92e_set_rf_reg and rtl92e_get_rf_reg are used in:
rtl92e_set_bandwidth (eRFPath only for 0 and 1)
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_phy_switch_channel_step (eRFPath only for 0 and 1)
_rtl92e_dm_check_tx_power_tracking_thermal (eRFPath only for 0)
rtl92e_check_bb_and_rf is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
_rtl92e_bb_config_para_file (eRFPath only for 0)
rtl92e_config_rf_path is used in:
rtl92e_config_rf (eRFPath only for 0 and 1)
Remove dead code and constants.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/180723eee77f70ffda1f8f0656c2f256f005c4ef.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused priv->phy_reg_def[RF90_PATH_C].rfintfo and
priv->phy_reg_def[RF90_PATH_D].rfintfo and
remove unused priv->phy_reg_def[RF90_PATH_C].rfintfe and
priv->phy_reg_def[RF90_PATH_D].rfintfe.
The termination condition for the loop is set to
priv->num_total_rf_path = RTL819X_TOTAL_RF_PATH = 2.
Because of this pPhyReg = &priv->phy_reg_def[eRFPath]; pPhyReg cannot
point to array element 2 for RF90_PATH_C and 3 for RF90_PATH_D.
Remove unused constants as well.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/3c2237e2b4094129143594a5ab45691e9961e100.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused priv->phy_reg_def[RF90_PATH_C].rfintfs and
priv->phy_reg_def[RF90_PATH_D].rfintfs.
The termination condition for the loop is set to
priv->num_total_rf_path = RTL819X_TOTAL_RF_PATH = 2.
Because of this pPhyReg = &priv->phy_reg_def[eRFPath]; pPhyReg cannot
point to array element 2 for RF90_PATH_C and 3 for RF90_PATH_D.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/801d10f460acbf0601c78dee05c7b32f1628f3a8.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Remove unused case RF90_PATH_C and case RF90_PATH_D. The termination
condition for the loop is set to
priv->num_total_rf_path = RTL819X_TOTAL_RF_PATH = 2. Because of this
eRFPath cannot reach the values 2 for RF90_PATH_C and 3 for RF90_PATH_D.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/3a62c8803712e7bf905886e670fe334a13d5d753.1678569965.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When ida_alloc() fails, "pi" is not freed although the misleading
comment says otherwise.
Move the ida_alloc() call up so we really don't have to free "pi" in
case of ida_alloc() failure.
Also move ida_free() call from pi_remove_one() to
pata_parport_dev_release(). It was dereferencing already freed dev
pointer.
Testing revealed leak even in non-failure case which was tracked down
to missing put_device() call after bus_find_device_by_name(). As a
result, pata_parport_dev_release() was never called.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202303111822.IHNchbkp-lkp@intel.com/
Signed-off-by: Ondrej Zary <linux@zary.sk>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Clang errors:
drivers/net/wireless/intel/iwlwifi/iwl-devtrace.c:15:32: error: unknown warning group '-Wsuggest-attribute=format', ignored [-Werror,-Wunknown-warning-option]
#pragma GCC diagnostic ignored "-Wsuggest-attribute=format"
^
1 error generated.
The warning being disabled by this pragma is GCC specific. Guard its use
with CONFIG_CC_IS_GCC so that it is not used with clang to clear up the
error.
Fixes: 4eca8cbf7b ("wifi: iwlwifi: suppress printf warnings in tracing")
Link: https://github.com/ClangBuiltLinux/linux/issues/1818
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20230315-iwlwifi-fix-pragma-v1-1-ad23f92c4739@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The full pagecache drop at the end of FS_IOC_ENABLE_VERITY is causing
performance problems and is hindering adoption of fsverity. It was
intended to solve a race condition where unverified pages might be left
in the pagecache. But actually it doesn't solve it fully.
Since the incomplete solution for this race condition has too much
performance impact for it to be worth it, let's remove it for now.
Fixes: 3fda4c617e ("fs-verity: implement FS_IOC_ENABLE_VERITY ioctl")
Cc: stable@vger.kernel.org
Reviewed-by: Victor Hsieh <victorhsieh@google.com>
Link: https://lore.kernel.org/r/20230314235332.50270-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Louis Peens says:
====================
nfp: flower: add support for multi-zone conntrack
This series add changes to support offload of connection tracking across
multiple zones. Previously the driver only supported offloading of a
single goto_chain, spanning a single zone. This was implemented by
merging a pre_ct rule, post_ct rule and the nft rule. This series
provides updates to let the original post_ct rule act as the new pre_ct
rule for a next set of merges if it contains another goto and
conntrack action. In pseudo-tc rule format this adds support for:
ingress chain 0 proto ip flower
action ct zone 1 pipe action goto 1
ingress chain 1 proto ip flower ct_state +tr+new ct_zone 1
action ct_clear pipe action ct zone 2 pipe action goto 2
ingress chain 1 proto ip flower ct_state +tr+est ct_zone 1
action ct_clear pipe action ct zone 2 pipe action goto 2
ingress chain 2 proto ip flower ct_state +tr+new ct_zone 2
action mirred egress redirect dev ...
ingress chain 2 proto ip flower ct_state +tr+est ct_zone 2
action mirred egress redirect dev ...
This can continue for up to a maximum of 4 zone recirculations.
The first few patches are some smaller preparation patches while the
last one introduces the functionality.
====================
Link: https://lore.kernel.org/r/20230314063610.10544-1-louis.peens@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
If goto_chain action present in the post ct flow rule, merge flow rules
in this ct-zone, create a new pre_ct entry as the pre ct flow rule of
next ct-zone, but do not offload merged flow rules to firmware. Repeat
the process in the next ct-zone until no goto_chain action present in
the post ct flow rule in a certain ct-zone, merged all the flow rules.
Offload to firmware finally.
Signed-off-by: Wentao Jia <wentao.jia@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
