net: ipa: kill ev_ch_e_cntxt_1_length_encode()

Now that we explicitly define each register field width there is no
need to have a special encoding function for the event ring length.
Add a field for

net: ipa: kill ev_ch_e_cntxt_1_length_encode()

Now that we explicitly define each register field width there is no
need to have a special encoding function for the event ring length.
Add a field for this to the EV_CH_E_CNTXT_1 GSI register, and use it
in place of ev_ch_e_cntxt_1_length_encode() (which can be removed).

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

show more ...

net: ipa: kill gsi->virt_raw

Starting at IPA v4.5, almost all GSI registers had their offsets
changed by a fixed amount (shifted downward by 0xd000). Rather than
defining offsets for all those regi

net: ipa: kill gsi->virt_raw

Starting at IPA v4.5, almost all GSI registers had their offsets
changed by a fixed amount (shifted downward by 0xd000). Rather than
defining offsets for all those registers dependent on version, an
adjustment was applied for most register accesses. This was
implemented in commit cdeee49f3ef7f ("net: ipa: adjust GSI register
addresses"). It was later modified to be a bit more obvious about
the adjusment, in commit 571b1e7e58ad3 ("net: ipa: use a separate
pointer for adjusted GSI memory").

We now are able to define every GSI register with its own offset, so
there's no need to implement this special adjustment.

So get rid of the "virt_raw" pointer, and just maintain "virt" as
the (non-adjusted) base address of I/O mapped GSI register memory.

Redefine the offsets of all GSI registers (other than the INTER_EE
ones, which were not subject to the adjustment) for IPA v4.5+,
subtracting 0xd000 from their defined offsets instead.

Move the ERROR_LOG and ERROR_LOG_CLR definitions further down in the
register definition files so all registers are defined in order of
their offset.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

show more ...

net: ipa: define fields for remaining GSI registers

Define field IDs for the remaining GSI registers, and populate the
register definition files accordingly. Use the reg_*() functions to
access fie

net: ipa: define fields for remaining GSI registers

Define field IDs for the remaining GSI registers, and populate the
register definition files accordingly. Use the reg_*() functions to
access field values for those regiters, and get rid of the previous
field definition constants.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

net: ipa: define fields for event-ring related registers

Define field IDs for the EV_CH_E_CNTXT_0 and EV_CH_E_CNTXT_8 GSI
registers, and populate the register definition files accordingly.
Use the r

net: ipa: define fields for event-ring related registers

Define field IDs for the EV_CH_E_CNTXT_0 and EV_CH_E_CNTXT_8 GSI
registers, and populate the register definition files accordingly.
Use the reg_*() functions to access field values for those regiters,
and get rid of the previous field definition constants.

The remaining EV_CH_E_CNTXT_* registers are written with full 32-bit
values (and have no fields).

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

net: ipa: define more fields for GSI registers

Beyond the CH_C_QOS register, two other registers whose offset is
related to channel number have fields within them.

Define the fields within the CH_C

net: ipa: define more fields for GSI registers

Beyond the CH_C_QOS register, two other registers whose offset is
related to channel number have fields within them.

Define the fields within the CH_C_CNTXT_0 GSI register, using an
enumerated type to identify the register's fields, and define an
array of field masks to use for that register's reg structure.

For the CH_C_CNTXT_1 GSI register, ch_c_cntxt_1_length_encode()
previously hid the difference in bit width in the channel ring
length field. Instead, define a new field CH_R_LENGTH and encode
the ring size with reg_encode().

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

net: ipa: define GSI CH_C_QOS register fields

Define the fields within the CH_C_QOS GSI register using an array of
field masks in that register's reg structure. Use the reg functions
for encoding v

net: ipa: define GSI CH_C_QOS register fields

Define the fields within the CH_C_QOS GSI register using an array of
field masks in that register's reg structure. Use the reg functions
for encoding values in those fields.

One field in the register is present for IPA v4.0-4.2 only, two
others are present starting at IPA v4.5, and one more is there
starting at IPA v4.9.

Drop the "GSI_" prefix in symbols defined in the gsi_prefetch_mode
enumerated type, and define their values using decimal rather than
hexidecimal values.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

show more ...

net: ipa: define IPA remaining GSI register offsets

Add the remaining GSI register offset definitions. Use gsi_reg()
rather than the corresponding GSI_*_OFFSET() macros to get the
offsets for these

net: ipa: define IPA remaining GSI register offsets

Add the remaining GSI register offset definitions. Use gsi_reg()
rather than the corresponding GSI_*_OFFSET() macros to get the
offsets for these registers, and get rid of the macros.

Note that we are now defining information for the HW_PARAM_2
register, and that doesn't appear until IPA v3.5.1.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...

net: ipa: add "gsi_v3.5.1.c"

The next patch adds a GSI register field that is only valid starting
at IPA v3.5.1. Create "gsi_v3.5.1.c" from "gsi_v3.1.c", changing
only the name of the public regs s

net: ipa: add "gsi_v3.5.1.c"

The next patch adds a GSI register field that is only valid starting
at IPA v3.5.1. Create "gsi_v3.5.1.c" from "gsi_v3.1.c", changing
only the name of the public regs structure it defines.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

show more ...