diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 |
2 files changed, 19 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index e1bfc85d1789..9304ce3e4649 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1778,6 +1778,21 @@ static irqreturn_t gen8_irq_handler(int irq, void *arg) } } + if (master_ctl & GEN8_DE_PORT_IRQ) { + tmp = I915_READ(GEN8_DE_PORT_IIR); + if (tmp & GEN8_AUX_CHANNEL_A) + dp_aux_irq_handler(dev); + else if (tmp) + DRM_ERROR("Unexpected DE Port interrupt\n"); + else + DRM_ERROR("The master control interrupt lied (DE PORT)!\n"); + + if (tmp) { + I915_WRITE(GEN8_DE_PORT_IIR, tmp); + ret = IRQ_HANDLED; + } + } + for_each_pipe(pipe) { uint32_t pipe_iir; @@ -2883,8 +2898,8 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv) } POSTING_READ(GEN8_DE_PIPE_ISR(0)); - I915_WRITE(GEN8_DE_PORT_IMR, ~_PORT_DP_A_HOTPLUG); - I915_WRITE(GEN8_DE_PORT_IER, _PORT_DP_A_HOTPLUG); + I915_WRITE(GEN8_DE_PORT_IMR, ~GEN8_AUX_CHANNEL_A); + I915_WRITE(GEN8_DE_PORT_IER, GEN8_AUX_CHANNEL_A); POSTING_READ(GEN8_DE_PORT_IER); } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 9e7588345017..fe8cb4cc0296 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4073,7 +4073,8 @@ #define GEN8_DE_PORT_IMR 0x44444 #define GEN8_DE_PORT_IIR 0x44448 #define GEN8_DE_PORT_IER 0x4444c -#define _PORT_DP_A_HOTPLUG (1 << 3) +#define GEN8_PORT_DP_A_HOTPLUG (1 << 3) +#define GEN8_AUX_CHANNEL_A (1 << 0) #define GEN8_DE_MISC_ISR 0x44460 #define GEN8_DE_MISC_IMR 0x44464 |