leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/i915: print Gen5+ CPU/PCH poison interrupts

Browse Source 
This is bad news and shouldn't be happening.

V2: Rebase.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Paulo Zanoni 2013-04-12 17:57:58 -03:00 committed by Daniel Vetter
parent 8664281b64
commit de032bf40a
2 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1023,6 +1023,9 @@ static void ivb_err_int_handler(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 err_int = I915_READ(GEN7_ERR_INT);
if (err_int & ERR_INT_POISON)
DRM_ERROR("Poison interrupt\n");
if (err_int & ERR_INT_FIFO_UNDERRUN_A)
if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_A, false))
DRM_DEBUG_DRIVER("Pipe A FIFO underrun\n");
@ -1043,6 +1046,9 @@ static void cpt_serr_int_handler(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 serr_int = I915_READ(SERR_INT);
if (serr_int & SERR_INT_POISON)
DRM_ERROR("PCH poison interrupt\n");
if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN)
if (intel_set_pch_fifo_underrun_reporting(dev, TRANSCODER_A,
false))
@ -1261,6 +1267,9 @@ static irqreturn_t ironlake_irq_handler(int irq, void *arg)
if (de_iir & DE_PIPEB_VBLANK)
drm_handle_vblank(dev, 1);
if (de_iir & DE_POISON)
DRM_ERROR("Poison interrupt\n");
if (de_iir & DE_PIPEA_FIFO_UNDERRUN)
if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_A, false))
DRM_DEBUG_DRIVER("Pipe A FIFO underrun\n");
@ -2496,7 +2505,7 @@ static void ibx_irq_postinstall(struct drm_device *dev)
if (HAS_PCH_IBX(dev)) {
mask = SDE_GMBUS | SDE_AUX_MASK | SDE_TRANSB_FIFO_UNDER |
SDE_TRANSA_FIFO_UNDER;
SDE_TRANSA_FIFO_UNDER | SDE_POISON;
} else {
mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT;
@ -2517,7 +2526,7 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE |
DE_AUX_CHANNEL_A | DE_PIPEB_FIFO_UNDERRUN |
DE_PIPEA_FIFO_UNDERRUN;
DE_PIPEA_FIFO_UNDERRUN | DE_POISON;
u32 render_irqs;
dev_priv->irq_mask = ~display_mask;

2
drivers/gpu/drm/i915/i915_reg.h
View File

@ -640,6 +640,7 @@
#define ERROR_GEN6 0x040a0
#define GEN7_ERR_INT 0x44040
#define ERR_INT_POISON (1<<31)
#define ERR_INT_MMIO_UNCLAIMED (1<<13)
#define ERR_INT_FIFO_UNDERRUN_C (1<<6)
#define ERR_INT_FIFO_UNDERRUN_B (1<<3)
@ -3810,6 +3811,7 @@
#define SDEIER 0xc400c
#define SERR_INT 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)