Merge tag 'v3.10.65' into update
This is the 3.10.65 stable release
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@@ -14,11 +14,19 @@ survive after a restart.
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1. Ramoops concepts
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Ramoops uses a predefined memory area to store the dump. The start and size of
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the memory area are set using two variables:
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Ramoops uses a predefined memory area to store the dump. The start and size
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and type of the memory area are set using three variables:
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* "mem_address" for the start
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* "mem_size" for the size. The memory size will be rounded down to a
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power of two.
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* "mem_type" to specifiy if the memory type (default is pgprot_writecombine).
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Typically the default value of mem_type=0 should be used as that sets the pstore
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mapping to pgprot_writecombine. Setting mem_type=1 attempts to use
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pgprot_noncached, which only works on some platforms. This is because pstore
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depends on atomic operations. At least on ARM, pgprot_noncached causes the
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memory to be mapped strongly ordered, and atomic operations on strongly ordered
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memory are implementation defined, and won't work on many ARMs such as omaps.
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The memory area is divided into "record_size" chunks (also rounded down to
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power of two) and each oops/panic writes a "record_size" chunk of
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@@ -55,6 +63,7 @@ Setting the ramoops parameters can be done in 2 different manners:
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static struct ramoops_platform_data ramoops_data = {
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.mem_size = <...>,
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.mem_address = <...>,
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.mem_type = <...>,
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.record_size = <...>,
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.dump_oops = <...>,
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.ecc = <...>,
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