Searched hist:ed4cb4142b242d8090d3811d5eb4abf6aa985bc8 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/drivers/gpu/drm/ |
| H A D | drm_irq.c | diff ed4cb4142b242d8090d3811d5eb4abf6aa985bc8 Tue Jul 29 14:10:39 CDT 2008 Eric Anholt <eric@anholt.net> i915: Add support for MSI and interrupt mitigation.
Previous attempts at interrupt mitigation had been foiled by i915_wait_irq's
failure to update the sarea seqno value when the status page indicated that
the seqno had already been passed. MSI support has been seen to cut CPU
costs by up to 40% in some workloads by avoiding other expensive interrupt
handlers for frequent graphics interrupts.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
|
| /openbmc/linux/drivers/gpu/drm/i915/ |
| H A D | i915_irq.c | diff ed4cb4142b242d8090d3811d5eb4abf6aa985bc8 Tue Jul 29 14:10:39 CDT 2008 Eric Anholt <eric@anholt.net> i915: Add support for MSI and interrupt mitigation.
Previous attempts at interrupt mitigation had been foiled by i915_wait_irq's
failure to update the sarea seqno value when the status page indicated that
the seqno had already been passed. MSI support has been seen to cut CPU
costs by up to 40% in some workloads by avoiding other expensive interrupt
handlers for frequent graphics interrupts.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
|
| H A D | i915_drv.h | diff ed4cb4142b242d8090d3811d5eb4abf6aa985bc8 Tue Jul 29 14:10:39 CDT 2008 Eric Anholt <eric@anholt.net> i915: Add support for MSI and interrupt mitigation.
Previous attempts at interrupt mitigation had been foiled by i915_wait_irq's
failure to update the sarea seqno value when the status page indicated that
the seqno had already been passed. MSI support has been seen to cut CPU
costs by up to 40% in some workloads by avoiding other expensive interrupt
handlers for frequent graphics interrupts.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
|