We need to configure TE interrupt in two places.
Port interrupt and DSI interrupt mask registers.
v2: Hide the private flags check inside configure_te (Jani)
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_irq.c | 55 +++++++++++++++++++++++++++++++--
1 file changed, 53 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index dae00f7dd7df..a3d1fc0bfb56 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -41,6 +41,7 @@
#include "display/intel_hotplug.h"
#include "display/intel_lpe_audio.h"
#include "display/intel_psr.h"
+#include "display/intel_dsi.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_irq.h"
@@ -2571,12 +2572,46 @@ int ilk_enable_vblank(struct drm_crtc *crtc)
return 0;
}
+static bool gen11_dsi_configure_te(struct drm_i915_private *dev_priv,
+ struct drm_display_mode *mode, bool enable)
+{
+ enum port port;
+ u32 tmp;
+
+ if (!(mode->private_flags &
+ (I915_MODE_FLAG_DSI_USE_TE1 | I915_MODE_FLAG_DSI_USE_TE0)))
+ return false;
+
+ if (mode->private_flags & I915_MODE_FLAG_DSI_USE_TE1)
+ port = PORT_B;
+ else
+ port = PORT_A;
+
+ tmp = I915_READ(DSI_INTR_MASK_REG(port));
+ if (enable)
+ tmp &= ~DSI_TE_EVENT;
+ else
+ tmp |= DSI_TE_EVENT;
+
+ I915_WRITE(DSI_INTR_MASK_REG(port), tmp);
+ return true;
+}
+
int bdw_enable_vblank(struct drm_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ enum pipe pipe = intel_crtc->pipe;
+ struct drm_vblank_crtc *vblank;
+ struct drm_display_mode *mode;
unsigned long irqflags;
+ vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
+ mode = &vblank->hwmode;
+
+ if (gen11_dsi_configure_te(dev_priv, mode, true))
+ return 0;
+
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
bdw_enable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
@@ -2642,9 +2677,18 @@ void ilk_disable_vblank(struct drm_crtc *crtc)
void bdw_disable_vblank(struct drm_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->dev);
- enum pipe pipe = to_intel_crtc(crtc)->pipe;
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ enum pipe pipe = intel_crtc->pipe;
+ struct drm_vblank_crtc *vblank;
+ struct drm_display_mode *mode;
unsigned long irqflags;
+ vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
+ mode = &vblank->hwmode;
+
+ if (gen11_dsi_configure_te(dev_priv, mode, false))
+ return;
+
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
bdw_disable_pipe_irq(dev_priv, pipe, GEN8_PIPE_VBLANK);
spin_unlock_irqrestore(&dev_priv->irq_lock, irqflags);
@@ -3350,6 +3394,13 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
gen3_assert_iir_is_zero(uncore, EDP_PSR_IIR);
}
+ if (INTEL_GEN(dev_priv) >= 11) {
+ enum port port;
+
+ if (intel_bios_is_dsi_present(dev_priv, &port))
+ de_port_masked |= DSI0_TE | DSI1_TE;
+ }
+
for_each_pipe(dev_priv, pipe) {
dev_priv->de_irq_mask[pipe] = ~de_pipe_masked;
--
2.21.0.5.gaeb582a
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