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Move the definition of the ipa_irq_id enumerated type out of
"ipa_interrupt.h" and into "ipa_reg.h", and flesh out its set of
defined values. Each interrupt id indicates a particular type of
IPA interrupt that can be signaled. Their numeric values define bit
positions in the IPA_IRQ_* registers, so should their definitions
should accompany the definition of those register offsets.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Consistently define numeric values for enumerated type members using
hexidecimal (rather than decimal) format values. Align the values
assigned in the same column in each file.
Only assign values where they really matter, for example don't
assign IPA_ENDPOINT_AP_MODEM_TX the value 0.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This commit affects comments (and in one case, whitespace) only.
Throughout the IPA code, return statements are documented using
"@Return:", whereas they should use "Return:" instead. Fix these
mistakes.
In function definitions, some parameters are missing their comment
to describe them. And in structure definitions, some fields are
missing their comment to describe them. Add these missing
descriptions.
Some arguments changed name and type along the way, but their
descriptions were not updated (an endpoint pointer is now used in
many places that previously used an endpoint ID). Fix these
incorrect parameter descriptions.
In the description for the ipa_clock structure, one field had a
semicolon instead of a colon in its description. Fix this.
Add a missing function description for ipa_gsi_endpoint_data_empty().
All of these issues were identified when building with "W=1".
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch incorporates three source files (and their headers). They're
grouped into one patch mainly for the purpose of making the number and
size of patches in this series somewhat reasonable.
- "ipa_clock.c" and "ipa_clock.h" implement clocking for the IPA device.
The IPA has a single core clock managed by the common clock framework.
In addition, the IPA has three buses whose bandwidth is managed by the
Linux interconnect framework. At this time the core clock and all
three buses are either on or off; we don't yet do any more fine-grained
management than that. The core clock and interconnects are enabled
and disabled as a unit, using a unified clock-like abstraction,
ipa_clock_get()/ipa_clock_put().
- "ipa_interrupt.c" and "ipa_interrupt.h" implement IPA interrupts.
There are two hardware IRQs used by the IPA driver (the other is
the GSI interrupt, described in a separate patch). Several types
of interrupt are handled by the IPA IRQ handler; these are not part
of data/fast path.
- The IPA has a region of local memory that is accessible by the AP
(and modem). Within that region are areas with certain defined
purposes. "ipa_mem.c" and "ipa_mem.h" define those regions, and
implement their initialization.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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