[Intel-gfx] [PATCH 14/15] drm/i915: capture_reg_state interrupt registers for Gen8

[Thierry, Michel]

> -----Original Message-----
> From: Intel-gfx [mailto:intel-gfx-bounces at lists.freedesktop.org] On Behalf
> Of Daniel Vetter
> Sent: Wednesday, August 06, 2014 9:28 AM
> To: Vivi, Rodrigo
> Cc: intel-gfx at lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH 14/15] drm/i915: capture_reg_state
interrupt
> registers for Gen8
> 
> On Tue, Aug 05, 2014 at 07:51:25AM -0700, Rodrigo Vivi wrote:
> > From: Michel Thierry <michel.thierry at intel.com>
> >
> > After unclaimed register detection was enabled for BDW, I started seeing
> > warnings while reading registers 0x4400c (DEIER) and 0x4401c (GTIER).
> >
> > From Gen8, DEIER has been split per display engine pipe, and GTIER has
> > been split in 4.
> >
> > Signed-off-by: Michel Thierry <michel.thierry at intel.com>
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> 
> Isn't that now addressed by the other gt/deier patches from you?
> -Daniel

Yes, Rodrigo's patch (drm/i915: Fix DEIER and GTIER collecting for BDW)
addressed the same thing.
--Michel
> 
> > ---
> >  drivers/gpu/drm/i915/i915_drv.h       |  2 ++
> >  drivers/gpu/drm/i915/i915_gpu_error.c | 19 ++++++++++++++++++-
> >  2 files changed, 20 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
> b/drivers/gpu/drm/i915/i915_drv.h
> > index 67e9da0..6622a53 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -314,6 +314,8 @@ struct drm_i915_error_state {
> >  	u32 eir;
> >  	u32 pgtbl_er;
> >  	u32 ier;
> > +	u32 pipe_ier[I915_MAX_PIPES]; /* gen8 */
> > +	u32 gt_ier[4]; /* gen8 */
> >  	u32 ccid;
> >  	u32 derrmr;
> >  	u32 forcewake;
> > diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c
> b/drivers/gpu/drm/i915/i915_gpu_error.c
> > index 0b3f694..e7a4ae0 100644
> > --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> > +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> > @@ -380,6 +380,16 @@ int i915_error_state_to_str(struct
> drm_i915_error_state_buf *m,
> >  	if (INTEL_INFO(dev)->gen == 7)
> >  		err_printf(m, "ERR_INT: 0x%08x\n", error->err_int);
> >
> > +	if (INTEL_INFO(dev)->gen == 8) {
> > +		for (i = 0; i < ARRAY_SIZE(error->pipe_ier); i++)
> > +				err_printf(m, "PIPE_IER_%d: 0x%08x\n", i,
> > +					   error->pipe_ier[i]);
> > +
> > +		for (i = 0; i < ARRAY_SIZE(error->gt_ier); i++)
> > +				err_printf(m, "GT_IER_%d: 0x%08x\n", i,
> > +					   error->gt_ier[i]);
> > +	}
> > +
> >  	for (i = 0; i < ARRAY_SIZE(error->ring); i++) {
> >  		err_printf(m, "%s command stream:\n", ring_str(i));
> >  		i915_ring_error_state(m, dev, &error->ring[i]);
> > @@ -1091,6 +1101,7 @@ static void i915_capture_reg_state(struct
> drm_i915_private *dev_priv,
> >  				   struct drm_i915_error_state *error)
> >  {
> >  	struct drm_device *dev = dev_priv->dev;
> > +	int i, pipe;
> >
> >  	/* General organization
> >  	 * 1. Registers specific to a single generation
> > @@ -1135,7 +1146,13 @@ static void i915_capture_reg_state(struct
> drm_i915_private *dev_priv,
> >  	if (HAS_HW_CONTEXTS(dev))
> >  		error->ccid = I915_READ(CCID);
> >
> > -	if (HAS_PCH_SPLIT(dev))
> > +	if (IS_GEN8(dev)) {
> > +		for_each_pipe(pipe)
> > +			error->pipe_ier[pipe] =
> > +
> 	I915_READ(GEN8_DE_PIPE_IER(pipe));
> > +		for (i = 0; i < 4; i++)
> > +			error->gt_ier[i] = I915_READ(GEN8_GT_IER(i));
> > +	} else if (HAS_PCH_SPLIT(dev))
> >  		error->ier = I915_READ(DEIER) | I915_READ(GTIER);
> >  	else {
> >  		if (IS_GEN2(dev))
> > --
> > 1.9.3
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> +41 (0) 79 365 57 48 - http://blog.ffwll.ch
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 6656 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20140806/016ab9d0/attachment.bin>