diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-10-24 10:06:49 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-10-24 10:07:19 +1100 |
| commit | 531bdefda91102cb3240e4e3289900af0a50e78b (patch) | |
| tree | cc95231a4ce4a0ae05e7d123eaac4bd9beedef2d /asm | |
| parent | bed82938878cff16c539c1c6b3887b2cf65b4f57 (diff) | |
| download | blackbird-skiboot-531bdefda91102cb3240e4e3289900af0a50e78b.tar.gz blackbird-skiboot-531bdefda91102cb3240e4e3289900af0a50e78b.zip | |
irq/occ/opal: Add self-sent dummy interrupt
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>
Diffstat (limited to 'asm')
| -rw-r--r-- | asm/asm-offsets.c | 1 | ||||
| -rw-r--r-- | asm/head.S | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/asm/asm-offsets.c b/asm/asm-offsets.c index 34400545..e33c1817 100644 --- a/asm/asm-offsets.c +++ b/asm/asm-offsets.c @@ -35,6 +35,7 @@ int main(void) OFFSET(CPUTHREAD_PIR, cpu_thread, pir); OFFSET(CPUTHREAD_SAVE_R1, cpu_thread, save_r1); OFFSET(CPUTHREAD_STATE, cpu_thread, state); + OFFSET(CPUTHREAD_CUR_TOKEN, cpu_thread, current_token); OFFSET(STACK_TYPE, stack_frame, type); OFFSET(STACK_LOCALS, stack_frame, locals); @@ -777,6 +777,9 @@ opal_entry: /* Get the CPU thread */ GET_CPU() + /* Store token in CPU thread */ + std %r0,CPUTHREAD_CUR_TOKEN(%r13) + /* Mark the stack frame */ li %r12,STACK_ENTRY_OPAL_API std %r12,STACK_TYPE(%r1) |
