diff options
author | Takashi Iwai <tiwai@suse.de> | 2017-10-05 15:08:57 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2017-10-05 15:08:57 +0200 |
commit | 3a9fce327ff9cabf7f89d3f20616a83af28393da (patch) | |
tree | c516d3e7023e7fe2dc8d4cf60e2ec03f3c9b5958 /arch/parisc/kernel/traps.c | |
parent | e195a331c4124a6527e5e1b6fbd93a6b4a984d7b (diff) | |
parent | 394ca81cb4c1518e9463fe342fb1ae8a9f46a82d (diff) |
Merge branch 'topic/timer-api' into for-next
Diffstat (limited to 'arch/parisc/kernel/traps.c')
-rw-r--r-- | arch/parisc/kernel/traps.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 991654c88eec..230333157fe3 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -817,7 +817,7 @@ void __init initialize_ivt(const void *iva) u32 check = 0; u32 *ivap; u32 *hpmcp; - u32 length; + u32 length, instr; if (strcmp((const char *)iva, "cows can fly")) panic("IVT invalid"); @@ -827,6 +827,14 @@ void __init initialize_ivt(const void *iva) for (i = 0; i < 8; i++) *ivap++ = 0; + /* + * Use PDC_INSTR firmware function to get instruction that invokes + * PDCE_CHECK in HPMC handler. See programming note at page 1-31 of + * the PA 1.1 Firmware Architecture document. + */ + if (pdc_instr(&instr) == PDC_OK) + ivap[0] = instr; + /* Compute Checksum for HPMC handler */ length = os_hpmc_size; ivap[7] = length; |