Declaring the mask of supported interrupts proved to be error-prone. It
is very easy to add a bit with no corresponding backing block or to miss
the INTF TE bit. Replace this with looping over the enabled INTF blocks
to setup the irq mask.
Reviewed-by: Marijn Suijten <marijn.suijten@xxxxxxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
.../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 20 ++++++++++++++++++-
.../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h | 6 ++++++
2 files changed, 25 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
index 0cecdc847b49..a745de20d387 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c
@@ -463,6 +463,7 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
{
struct dpu_hw_intr *intr;
int nirq = MDP_INTR_MAX * 32;
+ unsigned int i;
if (!addr || !m)
return ERR_PTR(-EINVAL);
@@ -480,7 +481,24 @@ struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr,
intr->total_irqs = nirq;
- intr->irq_mask = m->mdss_irqs;
+ intr->irq_mask = BIT(MDP_SSPP_TOP0_INTR) |
+ BIT(MDP_SSPP_TOP0_INTR2) |
+ BIT(MDP_SSPP_TOP0_HIST_INTR);
+ for (i = 0; i < m->intf_count; i++) {
+ const struct dpu_intf_cfg *intf = &m->intf[i];
+
+ if (intf->type == INTF_NONE)
+ continue;
+
+ intr->irq_mask |= BIT(MDP_INTFn_INTR(intf->id));
+
+ if (test_bit(DPU_INTF_TE, &intf->features)) {
+ unsigned idx = MDP_INTFn_TEAR_INTR(intf->id);
+
+ if (!WARN_ON(idx == -1))
+ intr->irq_mask |= BIT(idx);
+ }
+ }
spin_lock_init(&intr->irq_lock);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
index f329d6d7f646..f0b92c9e3b09 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.h
@@ -17,6 +17,7 @@ enum dpu_hw_intr_reg {
MDP_SSPP_TOP0_INTR,
MDP_SSPP_TOP0_INTR2,
MDP_SSPP_TOP0_HIST_INTR,
+ /* All MDP_INTFn_INTR should come sequentially */
MDP_INTF0_INTR,
MDP_INTF1_INTR,
MDP_INTF2_INTR,
@@ -33,6 +34,11 @@ enum dpu_hw_intr_reg {
MDP_INTR_MAX,
};
+#define MDP_INTFn_INTR(intf) (MDP_INTF0_INTR + (intf - INTF_0))
+#define MDP_INTFn_TEAR_INTR(intf) (intf == INTF_1 ? MDP_INTF1_TEAR_INTR : \
+ intf == INTF_2 ? MDP_INTF2_TEAR_INTR : \
+ -1)
+
/* compatibility */
#define MDP_INTF0_7xxx_INTR MDP_INTF0_INTR
#define MDP_INTF1_7xxx_INTR MDP_INTF1_INTR
--
2.39.2
