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Finally the code handles the IPA memory region array in the
configuration data without assuming it is indexed by region ID.
Get rid of the array index designators where these arrays are
initialized. As a result, there's no more need to define an
explicitly undefined memory region ID, so get rid of that.
Change ipa_mem_find() so it no longer assumes the ipa->mem[] array
is indexed by memory region ID. Instead, have it search the array
for the entry having the requested memory ID, and return the address
of the descriptor if found. Otherwise return NULL.
Stop allowing memory regions to be defined with zero size and zero
canary value. Check for this condition in ipa_mem_valid_one().
As a result, it is not necessary to check for this case in
ipa_mem_config().
Finally, there is no need for IPA_MEM_UNDEFINED to be defined any
more, so get rid of it.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Store the memory region ID in the memory descriptor structure. This
is a move toward *not* indexing the array by the ID, but for now we
must still specify those index values. Define an explicitly
undefined region ID, value 0, so uninitialized entries in the array
won't use an otherwise valid ID.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Define a new pseudo memory region identifer that specifies the
offset at the end of IPA resident memory. Use it instead of
IPA_MEM_UC_EVENT_RING in places where the size of that region was
defined to be 0.
The size of the IPA_MEM_END_MARKER pseudo region must be zero.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rename the SC7180 configuration data file so that its name is
derived from its IPA version.
Update a few other references to the code that talk about the SC7180
rather than just IPA v4.2.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
