diff options
| author | mjacob <mjacob@FreeBSD.org> | 2000-12-04 17:21:46 +0000 |
|---|---|---|
| committer | mjacob <mjacob@FreeBSD.org> | 2000-12-04 17:21:46 +0000 |
| commit | 97cf6bcc60c2786fa1949119b0bb7e9e2fdce887 (patch) | |
| tree | 1c216b3a0ab9d15e895047ed72894256b8842b27 /sys/alpha/pci | |
| parent | 77dd285b0401334ee7129e0271e74019309c7609 (diff) | |
| download | FreeBSD-src-97cf6bcc60c2786fa1949119b0bb7e9e2fdce887.zip FreeBSD-src-97cf6bcc60c2786fa1949119b0bb7e9e2fdce887.tar.gz | |
Fix for vanilla PC164 systems to use a slightly different PALcode magic
tweak to enable/disable interrupt sources. Seems to work. It is unclear
how many of the PC164 models actually might needs this, and whether or
not there are other hidden issues.
Obtained from:Bernd Walter <ticso@cicely8.cicely.de>
Diffstat (limited to 'sys/alpha/pci')
| -rw-r--r-- | sys/alpha/pci/pci_eb164_intr.s | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sys/alpha/pci/pci_eb164_intr.s b/sys/alpha/pci/pci_eb164_intr.s index 7121e44..089f79d 100644 --- a/sys/alpha/pci/pci_eb164_intr.s +++ b/sys/alpha/pci/pci_eb164_intr.s @@ -63,3 +63,33 @@ LEAF(eb164_intr_disable,1) call_pal PAL_cserve RET END(eb164_intr_disable) + + .text +LEAF(eb164_intr_enable_icsr,1) + mov a0, a1 + ldiq a0, 0x34 + call_pal PAL_cserve + ldiq a0, 0x08 /* Allow PALRES */ + call_pal PAL_cserve + .long 0x66100118 /* hw_mfpr a0, icsr */ + ldah a1, 0x0020 /* IMSK1 */ + or a0, a1, a0 + xor a0, a1, a0 + .long 0x76100118 /* hw_mtpr a0, icsr */ + ldiq a0, 0x09 /* Disable PALRES */ + call_pal PAL_cserve + RET + END(eb164_intr_enable_icsr) + + .text +LEAF(eb164_intr_disable_icsr,1) + ldiq a0, 0x08 /* Allow PALRES */ + call_pal PAL_cserve + .long 0x66100118 /* hw_mfpr a0, icsr */ + ldah a1, 0x0020 /* IMSK1 */ + or a0, a1, a0 + .long 0x76100118 /* hw_mtpr a0, icsr */ + ldiq a0, 0x09 /* Disable PALRES */ + call_pal PAL_cserve + RET + END(eb164_intr_disable_icsr) |
