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Mambo doesn't implement various things such as PBA SCOMs, LPC,
ChipTOD, etc... It also provides a special console hook.
This adds detection of Mambo via the /mambo node, and enables
us to boot all the way to Linux.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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Removed following:
- Machine check handle and other related routines.
- per-cpu MCE event used to record machine check data
cpu_thread->mc_event;
- Machine check related definition including mce event structure from
include/opal.h
- A comment above GET_STACK() #define that warns about runtime modification
made to GET_STACK macro by MC patching code.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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We use a double link technique, doing a first pass with a .o containing
a dummy symbol map, then re-linking with a new .o
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This patch adds:
- Normal builds are done with -fstack-protector (we want to investigate
using -fstack-protector-strong on gcc4.9 but for now we just use that
- Build with STACK_CHECK=1 will use -fstack-protector-all and -pg and
will check the stack in mcount
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Otherwise, if your path contains something like "linux-foo" then the "linux"
part gets replaced by the preprocessor due to stupid built-ins.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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This makes OPAL use the OCC interrupt facility to send itself an interrupt
whenever the OPAL event bit is set as a result of an OPAL call that wasn't
itself opal_handle_interrupt() or opal_handle_hmi() (both of which we know
the OS will already deal with appropriately).
This ensures that OPAL event changes are notified to Linux via its
interrupt path which is necessary for it to properly broadcast the state
change to its various clients.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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