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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [ilk] IPS frequently downclocks the GPU when playing quakelive"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90137#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [ilk] IPS frequently downclocks the GPU when playing quakelive"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90137">bug 90137</a>
from <span class="vcard"><a class="email" href="mailto:dimon@gmx.net" title="dimon@gmx.net">dimon@gmx.net</a>
</span></b>
<pre>Great news, your ilk machine is running, that's a big advantage.
I did some printk work...
The problem is I'm not getting any DE_PCU_EVENT interrupts.
They are unmasked but not set in deiir.
Here are some logs:
static void ivb_display_irq_handler(struct drm_device *dev, u32 de_iir)
@@ -2145,7 +2158,8 @@ static irqreturn_t ironlake_irq_handler(int irq, void
*arg)
}
de_iir = I915_READ(DEIIR);
- if (de_iir) {
+ printk("de_iir 0x%x deimr 0x%x deier 0x%x\n", de_iir,
I915_READ(DEIMR), I915_READ(DEIER));
+ if (de_iir) {
[ 619.658081] ilk_display_irq_handler
[ 619.658832] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.663854] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.664917] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.665909] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.666984] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.669067] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.673124] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.674803] de_iir 0x4000080 deimr 0x714bfb7b deier 0xeb48585
[ 619.674806] ilk_display_irq_handler
[ 619.676151] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.677224] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.680201] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.681298] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.682252] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.683301] de_iir 0x0 deimr 0x714bfb7b deier 0xeb48585
[ 619.691442] de_iir 0x4000080 deimr 0x714bfb7b deier 0xeb48585
[ 619.691448] ilk_display_irq_handler
[ 619.708108] de_iir 0x4000080 deimr 0x714bfb7b deier 0xeb48585
[ 619.708128] ilk_display_irq_handler
[ 619.724845] de_iir 0x4000080 deimr 0x714bfb7b deier 0xeb48585
[ 619.724899] ilk_display_irq_handler
[ 619.741503] de_iir 0x4000080 deimr 0x714bfb7b deier 0xeb48585
[ 619.741530] ilk_display_irq_handler</pre>
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