diff mbox

[4/7] drm/i915: export size_is_valid() from __intel_fbc_update()

Message ID 1443023547-19896-5-git-send-email-paulo.r.zanoni@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Zanoni, Paulo R Sept. 23, 2015, 3:52 p.m. UTC
Make the giant function a little less giant.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
---
 drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
 1 file changed, 22 insertions(+), 13 deletions(-)

Comments

Chris Wilson Sept. 23, 2015, 5:09 p.m. UTC | #1
s/Export/Extract/

Export made me think you wanted to use it from another file.

On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
> Make the giant function a little less giant

...and make it a little more self-documenting by refactoring the
valid size predicate..
 
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
>  1 file changed, 22 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> index 0a6b454..0c7b59b 100644
> --- a/drivers/gpu/drm/i915/intel_fbc.c
> +++ b/drivers/gpu/drm/i915/intel_fbc.c
> @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
>  	}
>  }
>  
> +static bool size_is_valid(struct intel_crtc *crtc)

Which size?

pipe_size_fits_in_fbc()
pipe_size_valid()
pipe_size_fits()

I think I prefer pipe_size_valid().

Naming quibles aside (but admittedly that is the purpose of the patch!),
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
Daniel Vetter Sept. 28, 2015, 8:59 a.m. UTC | #2
On Wed, Sep 23, 2015 at 06:09:04PM +0100, Chris Wilson wrote:
> s/Export/Extract/
> 
> Export made me think you wanted to use it from another file.
> 
> On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
> > Make the giant function a little less giant
> 
> ...and make it a little more self-documenting by refactoring the
> valid size predicate..
>  
> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
> >  1 file changed, 22 insertions(+), 13 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> > index 0a6b454..0c7b59b 100644
> > --- a/drivers/gpu/drm/i915/intel_fbc.c
> > +++ b/drivers/gpu/drm/i915/intel_fbc.c
> > @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
> >  	}
> >  }
> >  
> > +static bool size_is_valid(struct intel_crtc *crtc)
> 
> Which size?
> 
> pipe_size_fits_in_fbc()
> pipe_size_valid()
> pipe_size_fits()
> 
> I think I prefer pipe_size_valid().

Painted while applying, thanks.
-Daniel

> 
> Naming quibles aside (but admittedly that is the purpose of the patch!),
> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

Yea
> -Chris
> 
> -- 
> Chris Wilson, Intel Open Source Technology Centre
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Ville Syrjälä Sept. 28, 2015, 12:47 p.m. UTC | #3
On Mon, Sep 28, 2015 at 10:59:13AM +0200, Daniel Vetter wrote:
> On Wed, Sep 23, 2015 at 06:09:04PM +0100, Chris Wilson wrote:
> > s/Export/Extract/
> > 
> > Export made me think you wanted to use it from another file.
> > 
> > On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
> > > Make the giant function a little less giant
> > 
> > ...and make it a little more self-documenting by refactoring the
> > valid size predicate..
> >  
> > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> > > ---
> > >  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
> > >  1 file changed, 22 insertions(+), 13 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> > > index 0a6b454..0c7b59b 100644
> > > --- a/drivers/gpu/drm/i915/intel_fbc.c
> > > +++ b/drivers/gpu/drm/i915/intel_fbc.c
> > > @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
> > >  	}
> > >  }
> > >  
> > > +static bool size_is_valid(struct intel_crtc *crtc)
> > 
> > Which size?
> > 
> > pipe_size_fits_in_fbc()
> > pipe_size_valid()
> > pipe_size_fits()
> > 
> > I think I prefer pipe_size_valid().
> 
> Painted while applying, thanks.

And it's not what we really want. We should be looking at the plane src size.

> -Daniel
> 
> > 
> > Naming quibles aside (but admittedly that is the purpose of the patch!),
> > Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
> 
> Yea
> > -Chris
> > 
> > -- 
> > Chris Wilson, Intel Open Source Technology Centre
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Paulo Zanoni Sept. 28, 2015, 1:13 p.m. UTC | #4
2015-09-28 9:47 GMT-03:00 Ville Syrjälä <ville.syrjala@linux.intel.com>:
> On Mon, Sep 28, 2015 at 10:59:13AM +0200, Daniel Vetter wrote:
>> On Wed, Sep 23, 2015 at 06:09:04PM +0100, Chris Wilson wrote:
>> > s/Export/Extract/
>> >
>> > Export made me think you wanted to use it from another file.
>> >
>> > On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
>> > > Make the giant function a little less giant
>> >
>> > ...and make it a little more self-documenting by refactoring the
>> > valid size predicate..
>> >
>> > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
>> > > ---
>> > >  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
>> > >  1 file changed, 22 insertions(+), 13 deletions(-)
>> > >
>> > > diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
>> > > index 0a6b454..0c7b59b 100644
>> > > --- a/drivers/gpu/drm/i915/intel_fbc.c
>> > > +++ b/drivers/gpu/drm/i915/intel_fbc.c
>> > > @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
>> > >   }
>> > >  }
>> > >
>> > > +static bool size_is_valid(struct intel_crtc *crtc)
>> >
>> > Which size?
>> >
>> > pipe_size_fits_in_fbc()
>> > pipe_size_valid()
>> > pipe_size_fits()
>> >
>> > I think I prefer pipe_size_valid().
>>
>> Painted while applying, thanks.
>
> And it's not what we really want. We should be looking at the plane src size.

I can fix the name on patch 5/7 if we need.

>
>> -Daniel
>>
>> >
>> > Naming quibles aside (but admittedly that is the purpose of the patch!),
>> > Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
>>
>> Yea
>> > -Chris
>> >
>> > --
>> > Chris Wilson, Intel Open Source Technology Centre
>> > _______________________________________________
>> > Intel-gfx mailing list
>> > Intel-gfx@lists.freedesktop.org
>> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> http://blog.ffwll.ch
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Ville Syrjälä
> Intel OTC
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
Daniel Vetter Sept. 28, 2015, 1:32 p.m. UTC | #5
On Mon, Sep 28, 2015 at 03:47:55PM +0300, Ville Syrjälä wrote:
> On Mon, Sep 28, 2015 at 10:59:13AM +0200, Daniel Vetter wrote:
> > On Wed, Sep 23, 2015 at 06:09:04PM +0100, Chris Wilson wrote:
> > > s/Export/Extract/
> > > 
> > > Export made me think you wanted to use it from another file.
> > > 
> > > On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
> > > > Make the giant function a little less giant
> > > 
> > > ...and make it a little more self-documenting by refactoring the
> > > valid size predicate..
> > >  
> > > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> > > > ---
> > > >  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
> > > >  1 file changed, 22 insertions(+), 13 deletions(-)
> > > > 
> > > > diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> > > > index 0a6b454..0c7b59b 100644
> > > > --- a/drivers/gpu/drm/i915/intel_fbc.c
> > > > +++ b/drivers/gpu/drm/i915/intel_fbc.c
> > > > @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
> > > >  	}
> > > >  }
> > > >  
> > > > +static bool size_is_valid(struct intel_crtc *crtc)
> > > 
> > > Which size?
> > > 
> > > pipe_size_fits_in_fbc()
> > > pipe_size_valid()
> > > pipe_size_fits()
> > > 
> > > I think I prefer pipe_size_valid().
> > 
> > Painted while applying, thanks.
> 
> And it's not what we really want. We should be looking at the plane src size.

Well it also lookst at intel_crtc->config and not crtc->state so not
perfect from that pov either. And since it's really just a 1:1 refactor I
figured I can pull this before we figure out the exact details - we should
be able to get at everything interesting through the intel_crtc.
-Daniel
Ville Syrjälä Sept. 28, 2015, 1:38 p.m. UTC | #6
On Mon, Sep 28, 2015 at 10:13:05AM -0300, Paulo Zanoni wrote:
> 2015-09-28 9:47 GMT-03:00 Ville Syrjälä <ville.syrjala@linux.intel.com>:
> > On Mon, Sep 28, 2015 at 10:59:13AM +0200, Daniel Vetter wrote:
> >> On Wed, Sep 23, 2015 at 06:09:04PM +0100, Chris Wilson wrote:
> >> > s/Export/Extract/
> >> >
> >> > Export made me think you wanted to use it from another file.
> >> >
> >> > On Wed, Sep 23, 2015 at 12:52:24PM -0300, Paulo Zanoni wrote:
> >> > > Make the giant function a little less giant
> >> >
> >> > ...and make it a little more self-documenting by refactoring the
> >> > valid size predicate..
> >> >
> >> > > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> >> > > ---
> >> > >  drivers/gpu/drm/i915/intel_fbc.c | 35 ++++++++++++++++++++++-------------
> >> > >  1 file changed, 22 insertions(+), 13 deletions(-)
> >> > >
> >> > > diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
> >> > > index 0a6b454..0c7b59b 100644
> >> > > --- a/drivers/gpu/drm/i915/intel_fbc.c
> >> > > +++ b/drivers/gpu/drm/i915/intel_fbc.c
> >> > > @@ -755,6 +755,26 @@ static bool pixel_format_is_valid(struct drm_framebuffer *fb)
> >> > >   }
> >> > >  }
> >> > >
> >> > > +static bool size_is_valid(struct intel_crtc *crtc)
> >> >
> >> > Which size?
> >> >
> >> > pipe_size_fits_in_fbc()
> >> > pipe_size_valid()
> >> > pipe_size_fits()
> >> >
> >> > I think I prefer pipe_size_valid().
> >>
> >> Painted while applying, thanks.
> >
> > And it's not what we really want. We should be looking at the plane src size.
> 
> I can fix the name on patch 5/7 if we need.

Yeah, renaming when we actually start to check the plane size would seem
more appropriate.

> 
> >
> >> -Daniel
> >>
> >> >
> >> > Naming quibles aside (but admittedly that is the purpose of the patch!),
> >> > Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
> >>
> >> Yea
> >> > -Chris
> >> >
> >> > --
> >> > Chris Wilson, Intel Open Source Technology Centre
> >> > _______________________________________________
> >> > Intel-gfx mailing list
> >> > Intel-gfx@lists.freedesktop.org
> >> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >>
> >> --
> >> Daniel Vetter
> >> Software Engineer, Intel Corporation
> >> http://blog.ffwll.ch
> >> _______________________________________________
> >> Intel-gfx mailing list
> >> Intel-gfx@lists.freedesktop.org
> >> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> >
> > --
> > Ville Syrjälä
> > Intel OTC
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> 
> 
> -- 
> Paulo Zanoni
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 0a6b454..0c7b59b 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -755,6 +755,26 @@  static bool pixel_format_is_valid(struct drm_framebuffer *fb)
 	}
 }
 
+static bool size_is_valid(struct intel_crtc *crtc)
+{
+	struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
+	unsigned int max_w, max_h;
+
+	if (INTEL_INFO(dev_priv)->gen >= 8 || IS_HASWELL(dev_priv)) {
+		max_w = 4096;
+		max_h = 4096;
+	} else if (IS_G4X(dev_priv) || INTEL_INFO(dev_priv)->gen >= 5) {
+		max_w = 4096;
+		max_h = 2048;
+	} else {
+		max_w = 2048;
+		max_h = 1536;
+	}
+
+	return crtc->config->pipe_src_w <= max_w &&
+	       crtc->config->pipe_src_h <= max_h;
+}
+
 /**
  * __intel_fbc_update - enable/disable FBC as needed, unlocked
  * @dev_priv: i915 device instance
@@ -781,7 +801,6 @@  static void __intel_fbc_update(struct drm_i915_private *dev_priv)
 	struct drm_framebuffer *fb;
 	struct drm_i915_gem_object *obj;
 	const struct drm_display_mode *adjusted_mode;
-	unsigned int max_width, max_height;
 
 	WARN_ON(!mutex_is_locked(&dev_priv->fbc.lock));
 
@@ -830,21 +849,11 @@  static void __intel_fbc_update(struct drm_i915_private *dev_priv)
 		goto out_disable;
 	}
 
-	if (INTEL_INFO(dev_priv)->gen >= 8 || IS_HASWELL(dev_priv)) {
-		max_width = 4096;
-		max_height = 4096;
-	} else if (IS_G4X(dev_priv) || INTEL_INFO(dev_priv)->gen >= 5) {
-		max_width = 4096;
-		max_height = 2048;
-	} else {
-		max_width = 2048;
-		max_height = 1536;
-	}
-	if (intel_crtc->config->pipe_src_w > max_width ||
-	    intel_crtc->config->pipe_src_h > max_height) {
+	if (!size_is_valid(intel_crtc)) {
 		set_no_fbc_reason(dev_priv, FBC_MODE_TOO_LARGE);
 		goto out_disable;
 	}
+
 	if ((INTEL_INFO(dev_priv)->gen < 4 || HAS_DDI(dev_priv)) &&
 	    intel_crtc->plane != PLANE_A) {
 		set_no_fbc_reason(dev_priv, FBC_BAD_PLANE);