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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2020-08-04 23:02:19 +0530 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-08-07 16:00:20 +1000 |
| commit | 6b403d06b7a72590648fe4f791214c13caacc674 (patch) | |
| tree | f9290e663ad36b0e578a3b1531c97e64460d965d /include/chip.h | |
| parent | 1629c851c57e5f86ce92516de778afa8aa12f712 (diff) | |
| download | skiboot-6b403d06b7a72590648fe4f791214c13caacc674.zip skiboot-6b403d06b7a72590648fe4f791214c13caacc674.tar.gz skiboot-6b403d06b7a72590648fe4f791214c13caacc674.tar.bz2 | |
cpu: Make cpu_get_core_index() return the fused core number
cpu_get_core_index() currently uses pir_to_core_id() which returns
an EC number always (ie, a normal core number) even in fused core
mode. This is inconsistent with cpu_get_thread_index() which returns
a thread within a fused core (0...7) on P9.
So let's make things consistent and document it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.ibm.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'include/chip.h')
| -rw-r--r-- | include/chip.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/chip.h b/include/chip.h index 2063cd2..4deb961 100644 --- a/include/chip.h +++ b/include/chip.h @@ -239,6 +239,11 @@ extern uint32_t pir_to_chip_id(uint32_t pir); extern uint32_t pir_to_core_id(uint32_t pir); extern uint32_t pir_to_thread_id(uint32_t pir); +/* In P9 fused core mode, this is the "fused" core ID, in + * normal core mode or P8, this is the same as pir_to_core_id + */ +extern uint32_t pir_to_fused_core_id(uint32_t pir); + extern struct proc_chip *next_chip(struct proc_chip *chip); #define for_each_chip(__c) for (__c=next_chip(NULL); __c; __c=next_chip(__c)) |