From: Hans-Jörg Höxer <hshoexer@genua.de>
Subject: psp(4): longer timeouts
To: <tech@openbsd.org>
Date: Tue, 1 Oct 2024 14:37:07 +0200

Hi,

psp(4) on my EPYC 9124 seems to need more time to respond.  With both
polling during autoconf and interrupt during normal operation.

Take care,
HJ.
------------------------------------------------------------------------
commit 91ace94c0af584a1284f25ed72b3129a1cfde483
Author: Hans-Joerg Hoexer <hshoexer@genua.de>
Date:   Wed Aug 7 17:54:43 2024 +0200

    psp(4): longer timeouts
    
    On my EPYC 9124 psp(4) seems to need more to time to respond.
    Otherwise it will not attach.

diff --git a/sys/dev/ic/psp.c b/sys/dev/ic/psp.c
index 5bbbf2de5ee..84c8379d741 100644
--- a/sys/dev/ic/psp.c
+++ b/sys/dev/ic/psp.c
@@ -199,7 +199,7 @@ ccp_wait(struct psp_softc *sc, uint32_t *status, int poll)
 
 	if (poll) {
 		count = 0;
-		while (count++ < 10) {
+		while (count++ < 100) {
 			cmdword = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
 			    PSP_REG_CMDRESP);
 			if (cmdword & PSP_CMDRESP_RESPONSE)
@@ -211,7 +211,7 @@ ccp_wait(struct psp_softc *sc, uint32_t *status, int poll)
 		return (1);
 	}
 
-	if (tsleep_nsec(sc, PWAIT, "psp", SEC_TO_NSEC(1)) == EWOULDBLOCK)
+	if (tsleep_nsec(sc, PWAIT, "psp", SEC_TO_NSEC(2)) == EWOULDBLOCK)
 		return (1);
 
 done: