From 45c1cd8754064076f6090128958cbde9db45d41b Mon Sep 17 00:00:00 2001
From: Mika Kahola <mika.kahola@intel.com>
Date: Tue, 10 Oct 2017 13:17:06 +0300
Subject: [PATCH] drm/i915: Cleanup South Error Interrupts
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Git-commit: 45c1cd8754064076f6090128958cbde9db45d41b
Patch-mainline: v4.15-rc1
References: FATE#322643 bsc#1055900
Cleanup and parametrize the handling of South Error Interrupts (SERR_INT).
Reviewed-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1507630626-23806-6-git-send-email-mika.kahola@intel.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/i915/i915_irq.c | 12 ++++--------
drivers/gpu/drm/i915/i915_reg.h | 3 ---
2 files changed, 4 insertions(+), 11 deletions(-)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2252,18 +2252,14 @@ static void ivb_err_int_handler(struct d
static void cpt_serr_int_handler(struct drm_i915_private *dev_priv)
{
u32 serr_int = I915_READ(SERR_INT);
+ enum pipe pipe;
if (serr_int & SERR_INT_POISON)
DRM_ERROR("PCH poison interrupt\n");
- if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);
-
- if (serr_int & SERR_INT_TRANS_B_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);
-
- if (serr_int & SERR_INT_TRANS_C_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_C);
+ for_each_pipe(dev_priv, pipe)
+ if (serr_int & SERR_INT_TRANS_FIFO_UNDERRUN(pipe))
+ intel_pch_fifo_underrun_irq_handler(dev_priv, pipe);
I915_WRITE(SERR_INT, serr_int);
}
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7183,9 +7183,6 @@ enum {
#define SERR_INT _MMIO(0xc4040)
#define SERR_INT_POISON (1<<31)
-#define SERR_INT_TRANS_C_FIFO_UNDERRUN (1<<6)
-#define SERR_INT_TRANS_B_FIFO_UNDERRUN (1<<3)
-#define SERR_INT_TRANS_A_FIFO_UNDERRUN (1<<0)
#define SERR_INT_TRANS_FIFO_UNDERRUN(pipe) (1<<((pipe)*3))
/* digital port hotplug */