From 587164cd593c2cbdad376179f85159e31221989e Mon Sep 17 00:00:00 2001 From: Vasant Hegde Date: Mon, 26 Aug 2019 12:27:01 +0530 Subject: powerpc/powernv: Add new opal message type We have OPAL_MSG_PRD message type to pass prd related messages from OPAL to `opal-prd`. It can handle messages upto 64 bytes. We have a requirement to send bigger than 64 bytes of data from OPAL to `opal-prd`. Lets add new message type (OPAL_MSG_PRD2) to pass bigger data. Signed-off-by: Vasant Hegde [mpe: Make the error string clear that it's the PRD2 event that failed] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190826065701.8853-2-hegdevasant@linux.vnet.ibm.com --- arch/powerpc/platforms/powernv/opal-prd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/platforms/powernv') diff --git a/arch/powerpc/platforms/powernv/opal-prd.c b/arch/powerpc/platforms/powernv/opal-prd.c index e072bf157d62..45f4223a790f 100644 --- a/arch/powerpc/platforms/powernv/opal-prd.c +++ b/arch/powerpc/platforms/powernv/opal-prd.c @@ -342,7 +342,7 @@ static int opal_prd_msg_notifier(struct notifier_block *nb, int msg_size, item_size; unsigned long flags; - if (msg_type != OPAL_MSG_PRD) + if (msg_type != OPAL_MSG_PRD && msg_type != OPAL_MSG_PRD2) return 0; /* Calculate total size of the message and item we need to store. The @@ -393,6 +393,12 @@ static int opal_prd_probe(struct platform_device *pdev) return rc; } + rc = opal_message_notifier_register(OPAL_MSG_PRD2, &opal_prd_event_nb); + if (rc) { + pr_err("Couldn't register PRD2 event notifier\n"); + return rc; + } + rc = misc_register(&opal_prd_dev); if (rc) { pr_err("failed to register miscdev\n"); -- cgit v1.2.3