wifi: iwlwifi: take SGOM and UATS code out of ACPI ifdef

The BIOS tables SGOM and UATS are read from UEFI, but require
additional tables (WGDS and DSM func 3, respectively) which used to be
read from ACPI only, so the code handling those tables had to be under
ifdef ACPI. But now the driver reads those tables (WGDS and DSM) from
both ACPI and UEFI, so SGOM and UATS code shouldn't be under ifdef ACPI
anymore.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240205211151.dcaa3325773f.I649079c842369dcae3a362842322deca422a61d5@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: Add support for PPAG cmd v5 and PPAG revision 3

Add support for
- PPAG revision 3 in BIOS to enable PPAG in UHB
- PPAG command version 5, this command allows OEM to control
enablement of PPAG for LPI for UHB mode in USA and ETSI countries.

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240204235836.d17425824b11.If2c1b29e3c579f4135383681af2d625cfe2cffcd@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: return negative -EINVAL instead of positive EINVAL

The '-' character is missing in -EINVAL.

Fixes: fc7214c3c986 ("wifi: iwlwifi: read DSM functions from UEFI")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://msgid.link/f0391316-ab30-4664-96ac-03445ab2aeba@moroto.mountain
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read DSM functions from UEFI

For each DSM function, try to first read it from the UEFI.
If the UEFI WIFI GUID is unclocked, or the DSM function in
UEFI is invalid/unavailable - read it from ACPI.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.27dd626ce2bd.Ib90bab74a9d56deb2362edb712294360e4ddae5b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read ECKV table from UEFI

Try to read the ECKV table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI.

Change iwl_acpi_get_eckv() to receive fwrt as argument so
it will be the same as all iwl_acpi_get_x() functions,
so it could be generated by the macro.

While at it - move the reading of ECKV to INIT stage. There is no
reason to read it each time we load the FW.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.d4937cc00727.I36e5fc7f7850229b9b377c80b5203aa47137c97c@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read WRDD table from UEFI

Try to read the WRDD table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI.

Change iwl_acpi_get_mcc() to receive fwrt as argument so
it will be the same as all iwl_acpi_get_x() functions,
so it could be generated by the macro.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.5d52eeb109f7.I4d81700a7ae7fe2dfee14e363de358be59de7823@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read SPLC from UEFI

Try to read the SPLC table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240201155157.3d9d835b6edb.I7ea262df9431ced787b77c87149c6d7bddb7e7d6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read WTAS table from UEFI

Try to read the WTAS table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240131091413.45e6ff7b5063.Id3aec70887e14533b10d564f32c0cf5f2a14b792@changeid
[move uefi_tables_lock_status outside ifdef to fix build errors]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read PPAG table from UEFI

Try to read the PPAG table from UEFI first,
and if the WIFI UEFI tables are unlocked or the
table doesn't exist - try to read it from ACPI

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240131091413.6516da09aec1.I0dcaf0b6d8857417ba1318467a28da5d0d7d7f27@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: read SAR tables from UEFI

All the regulatory tables will be read from UEFI, and
only if it doesn't exist - they will be read from ACPI.
Read SAR tables (WRDS, EWRD and WGDS) from UEFI.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240131091413.533b687e1efb.Icb316291e593c8d53f41fdea2d083367dc97e3c4@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: cleanup uefi variables loading

Extract the logic that is common to all variables loading
to a function.

Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://msgid.link/20240128084842.454f32c4bcfe.I4835fe657475ac28ef6aef4d292fac63c6ce9a34@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: fw: Add support for UATS table in UHB

Driver need to provide details of VLP, AFC
AP type supported for the specific MCC to firmware.
Driver will read the UATS (UHB AP type support) table
from BIOS and sent to firmware using UATS_TABLE_CMD.

Add the support for the same in the driver.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20231022173519.eb6cf7be17b2.I8977a660564412056d9fd383d57b236cd4b22d00@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: pnvm: handle memory descriptor tlv

When PNVM is obtained from UEFI, there's an additional memory
descriptor TLV that has to be handled. It is the same TLV that
holds data in the reduced power tables. Also, in this TLV, the
actual data is located after address and size, so add the
corresponding offset.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230606103519.8c5f5ee8e30b.Id1893c9dec140b5ba4abe8a121c2e1a1d121d2d7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: fw: don't use constant size with efi.get_variable

Use efi.get_variable() with NULL pointer for data in order to
obtain entry size and then call it again with the correct size
to get the entry itself.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230606103519.ef95a8055a50.Iae5389baaf0a9a3c89469f7502275ee119d378b6@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: Separate reading and parsing of reduce power table

It enables to better handle error cases. Also save the image till the
end of the loading and only then free it.

Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230606103519.71e3b3e0e794.Ifbe69ad99a7e805eb70e09280365821eb146b1c9@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: Use iwl_pnvm_image in reduce power tables flow

Generalize the parsing, loading, and setting of the power-reduce
tables, in order to support allocation of several DRAM payloads
in the future.

Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230606103519.564f1eead99b.Iaba653b21dc09aafc72b9bbb3928abddce0db50a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: fw: fix argument to efi.get_variable

We should pass the newly allocated data to fill.

Signed-off-by: Alon Giladi <alon.giladi@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230418122405.aaa6d8874442.I734841c71aad9564cb22c50f2737aaff489fadaf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

wifi: iwlwifi: mvm: Support STEP equalizer settings from BIOS.

Read the STEP equalizer parameters from the BIOS during init
and transfer it to the firmware.

This table provides values to configure an equalizer at the transmitter
that can be used to compensate for PCB channel attenuation.

Signed-off-by: Ayala Barazani <ayala.barazani@intel.com>
Link: https://lore.kernel.org/r/20230127002430.f25f871c5e17.I8390ab916c8f681229433ebc576ed37a594c6d30@changeid
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>

iwlwifi: Switch to proper EFI variable store interface

Using half of the efivar API with locally baked efivar_entry instances
is not the right way to use this API, and these uses impede planned work
on the efivar layer itself.

So switch to direct EFI variable store accesses: we don't need the
efivar layer anyway.

Acked-by: Kalle Valo <kvalo@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

iwlwifi: fix various more -Wcast-qual warnings

When enabling W=3 that gets us -Wcast-qual, fix those warnings
in the code and propagate constness properly, or cast it away
via (uintptr_t) where really needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220128153014.4ac2f19c121e.Ied9469d93f8199206242bfba96e4e8d1949e3a08@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

iwlwifi: support SAR GEO Offset Mapping override via BIOS

Support reading the SAR Geographic Offset Mapping (SGOM) table from UEFI
to allow OEMs to override the values according to geographical regions.

Signed-off-by: Ayala Barazani <ayala.barazani@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211204174546.e6dfd8b5dd40.Ibc9a8fe2bfde345f49df5d57ec56663da6a53dc4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

iwlwifi: Fix memory leaks in error handling path

Should an error occur (invalid TLV len or memory allocation failure), the
memory already allocated in 'reduce_power_data' should be freed before
returning, otherwise it is leaking.

Fixes: 9dad325f9d57 ("iwlwifi: support loading the reduced power table from UEFI")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1504cd7d842d13ddb8244e18004523128d5c9523.1636615284.git.christophe.jaillet@wanadoo.fr

iwlwifi: fix printk format warnings in uefi.c

The kernel test robot reports printk format warnings in uefi.c, so
correct them.

../drivers/net/wireless/intel/iwlwifi/fw/uefi.c: In function 'iwl_uefi_get_pnvm':
../drivers/net/wireless/intel/iwlwifi/fw/uefi.c:52:30: warning: format '%zd' expects argument of type 'signed size_t', but argument 7 has type 'long unsigned int' [-Wformat=]
52 | "PNVM UEFI variable not found %d (len %zd)\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
53 | err, package_size);
| ~~~~~~~~~~~~
| |
| long unsigned int
../drivers/net/wireless/intel/iwlwifi/fw/uefi.c:59:29: warning: format '%zd' expects argument of type 'signed size_t', but argument 6 has type 'long unsigned int' [-Wformat=]
59 | IWL_DEBUG_FW(trans, "Read PNVM from UEFI with size %zd\n", package_size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~
| |
| long unsigned int

Fixes: 84c3c9952afb ("iwlwifi: move UEFI code to a separate file")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: linux-wireless@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210821020901.25901-1-rdunlap@infradead.org

iwl: fix debug printf format strings

The variable 'package_size' is an unsigned long, and should be printed
out using '%lu', not '%zd' (that would be for a size_t).

Yes, on many architectures (including x86-64), 'size_t' is in fact the
same type as 'long', but that's a fairly random architecture definition,
and on some platforms 'size_t' is in fact 'int' rather than 'long'.

That is the case on traditional 32-bit x86. Yes, both types are the
exact same 32-bit size, and it would all print out perfectly correctly,
but '%zd' ends up still being wrong.

And we can't make 'package_size' be a 'size_t', because we get the
actual value using efivar_entry_get() that takes a pointer to an
'unsigned long'. So '%lu' it is.

This fixes two of the i386 allmodconfig build warnings (that is now an
error due to -Werror).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

iwlwifi: support loading the reduced power table from UEFI

This new feature allows OEMs to set a special reduced power table in a
UEFI variable, which we use to tell the firmware to change the TX
power tables.

Read the variable and store it in a dram block to pass it to the
firmware. We do this as part of the PNVM loading flow.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210621103449.259a33ba5074.I2e0bb142d2a9c412547cba89b62dd077b328fdc4@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

iwlwifi: move UEFI code to a separate file

We are going to read more variables from UEFI, so it's cleaner to have
all the code that handles UEFI variables in a separate file.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210621103449.c705ac86f2e9.Ia7421c17fe52929e4098b4f0cf070809ed3ef906@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>