@@ -1349,8 +1349,11 @@ gen8_cs_irq_handler(struct intel_engine_cs *engine, u32 iir, int test_shift)
{
if (iir & (GT_RENDER_USER_INTERRUPT << test_shift))
notify_ring(engine);
- if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << test_shift))
- tasklet_schedule(&engine->irq_tasklet);
+
+ if (iir & (GT_CONTEXT_SWITCH_INTERRUPT << test_shift)) {
+ set_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
+ tasklet_hi_schedule(&engine->irq_tasklet);
+ }
}
static irqreturn_t gen8_gt_irq_ack(struct drm_i915_private *dev_priv,
@@ -564,7 +564,7 @@ static void intel_lrc_irq_handler(unsigned long data)
intel_uncore_forcewake_get(dev_priv, engine->fw_domains);
- if (!execlists_elsp_idle(engine)) {
+ while (__test_and_clear_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted)) {
u32 __iomem *csb_mmio =
dev_priv->regs + i915_mmio_reg_offset(RING_CONTEXT_STATUS_PTR(engine));
u32 __iomem *buf =
@@ -1297,6 +1297,7 @@ static int gen8_init_common_ring(struct intel_engine_cs *engine)
DRM_DEBUG_DRIVER("Execlists enabled for %s\n", engine->name);
/* After a GPU reset, we may have requests to replay */
+ __clear_bit(ENGINE_IRQ_EXECLIST, &engine->irq_posted);
if (!execlists_elsp_idle(engine)) {
engine->execlist_port[0].count = 0;
engine->execlist_port[1].count = 0;
@@ -213,6 +213,7 @@ struct intel_engine_cs {
unsigned long irq_posted;
#define ENGINE_IRQ_BREADCRUMB 0
+#define ENGINE_IRQ_EXECLIST 1
/* Rather than have every client wait upon all user interrupts,
* with the herd waking after every interrupt and each doing the
Mark when we run the execlist tasklet following the interrupt, so we don't probe a potentially uninitialised register when submitting the contexts multiple times before the hardware responds. v2: Use a shared engine->irq_posted Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com --- drivers/gpu/drm/i915/i915_irq.c | 7 +++++-- drivers/gpu/drm/i915/intel_lrc.c | 3 ++- drivers/gpu/drm/i915/intel_ringbuffer.h | 1 + 3 files changed, 8 insertions(+), 3 deletions(-)