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When setting up MSIs with a filter ensure that the event queue interrupt

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is cleared as it might have triggered before and given we supply NULL
as ic_clear, inthand_add() won't do this for us in this case.
This commit is contained in:
Marius Strobl 2010-01-10 18:39:29 +00:00
parent 87948dfdf2
commit b10fd7e9cc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202023
1 changed files with 10 additions and 2 deletions
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12
sys/sparc64/pci/fire.c
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@ -1882,6 +1882,7 @@ fire_setup_intr(device_t dev, device_t child, struct resource *ires,
void **cookiep)
{
struct fire_softc *sc;
struct fire_msiqarg *fmqa;
u_long vec;
int error;
u_int msi, msiq;
@ -1914,17 +1915,24 @@ fire_setup_intr(device_t dev, device_t child, struct resource *ires,
rman_set_end(ires, msi);
if (error != 0)
return (error);
fmqa = intr_vectors[vec].iv_icarg;
/*
* XXX inject our event queue handler.
*/
if (filt != NULL) {
intr_vectors[vec].iv_func = fire_msiq_filter;
intr_vectors[vec].iv_ic = &fire_msiqc_filter;
/*
* Ensure the event queue interrupt is cleared, it
* might have triggered before. Given we supply NULL
* as ic_clear, inthand_add() won't do this for us.
*/
FIRE_PCI_WRITE_8(sc, fmqa->fmqa_fica.fica_clr,
INTCLR_IDLE);
} else
intr_vectors[vec].iv_func = fire_msiq_handler;
/* Record the MSI/MSI-X as long as we we use a 1:1 mapping. */
((struct fire_msiqarg *)intr_vectors[vec].iv_icarg)->
fmqa_msi = msi;
fmqa->fmqa_msi = msi;
FIRE_PCI_WRITE_8(sc, FO_PCI_EQ_CTRL_SET_BASE + (msiq << 3),
FO_PCI_EQ_CTRL_SET_EN);
msi <<= 3;