[Intel-gfx] [PATCH 3/9] drm/i915: s/enum plane/enum old_plane_id/
Ville Syrjälä
ville.syrjala at linux.intel.com
Fri Oct 13 10:35:05 UTC 2017
On Thu, Oct 12, 2017 at 09:06:24PM +0200, Daniel Vetter wrote:
> On Wed, Oct 11, 2017 at 07:04:49PM +0300, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> >
> > Rename enum plane to enum old_plane_id to make it clear that it only
> > applies to pre-SKL platforms.
> >
> > v2: Reorder patches
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> old_ sounds to me like the previous in a temporal aka at runtime sense.
> Which is confusing, why exactly do we want to have different enums for the
> current vs. previous plane id?
The "old" ID is a global identifier, the "new" one is per-pipe. We need
the old one to index the primary plane registers on pre-skl. I've not yet
entirely figured out how we should handle planes that can move between
pipes (on pre-g4x) when it comes to the per-pipe identifier. But for now
I'm happy to defer that until I really need to ;)
>
> This needs a better prefix, please pick one of:
>
> i8xx_
> i9xx_
> i915_
> legacy_
legacy_ is what I proposed previously, but I don't particularly like it
on account of its length. i9xx_ might be a decent choice actually, since
all the pre-skl (primary) plane functions are now called i9xx_ as well.
I'll respin with that, unless someone has a better idea?
>
> Since you stare at this code way more than I do, pls pick the one you
> think is most consistent.
>
> > ---
> > drivers/gpu/drm/i915/i915_drv.h | 4 +-
> > drivers/gpu/drm/i915/intel_display.c | 84 ++++++++++++++++++------------------
> > drivers/gpu/drm/i915/intel_drv.h | 6 +--
> > 3 files changed, 47 insertions(+), 47 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> > index 6bbc4b83aa0a..7280f9eb2e95 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -307,7 +307,7 @@ static inline bool transcoder_is_dsi(enum transcoder transcoder)
> > * Global legacy plane identifier. Valid only for primary/sprite
> > * planes on pre-g4x, and only for primary planes on g4x+.
> > */
> > -enum plane {
> > +enum old_plane_id {
> > PLANE_A,
> > PLANE_B,
> > PLANE_C,
> > @@ -1128,7 +1128,7 @@ struct intel_fbc {
> >
> > struct {
> > enum pipe pipe;
> > - enum plane plane;
> > + enum old_plane_id plane;
> > unsigned int fence_y_offset;
> > } crtc;
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index a9fd3b8fa922..9d37c758f7b5 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -3223,17 +3223,17 @@ int i9xx_check_plane_surface(struct intel_plane_state *plane_state)
> > return 0;
> > }
> >
> > -static void i9xx_update_primary_plane(struct intel_plane *primary,
> > - const struct intel_crtc_state *crtc_state,
> > - const struct intel_plane_state *plane_state)
> > +static void i9xx_update_plane(struct intel_plane *plane,
> > + const struct intel_crtc_state *crtc_state,
> > + const struct intel_plane_state *plane_state)
> > {
> > - struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
> > + struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
> > struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
> > const struct drm_framebuffer *fb = plane_state->base.fb;
> > - enum plane plane = primary->plane;
> > + enum old_plane_id plane_id = plane->plane;
> > u32 linear_offset;
> > u32 dspcntr = plane_state->ctl;
> > - i915_reg_t reg = DSPCNTR(plane);
> > + i915_reg_t reg = DSPCNTR(plane_id);
> > int x = plane_state->main.x;
> > int y = plane_state->main.y;
> > unsigned long irqflags;
> > @@ -3254,34 +3254,34 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
> > /* pipesrc and dspsize control the size that is scaled from,
> > * which should always be the user's requested size.
> > */
> > - I915_WRITE_FW(DSPSIZE(plane),
> > + I915_WRITE_FW(DSPSIZE(plane_id),
> > ((crtc_state->pipe_src_h - 1) << 16) |
> > (crtc_state->pipe_src_w - 1));
> > - I915_WRITE_FW(DSPPOS(plane), 0);
> > - } else if (IS_CHERRYVIEW(dev_priv) && plane == PLANE_B) {
> > - I915_WRITE_FW(PRIMSIZE(plane),
> > + I915_WRITE_FW(DSPPOS(plane_id), 0);
> > + } else if (IS_CHERRYVIEW(dev_priv) && plane_id == PLANE_B) {
> > + I915_WRITE_FW(PRIMSIZE(plane_id),
> > ((crtc_state->pipe_src_h - 1) << 16) |
> > (crtc_state->pipe_src_w - 1));
> > - I915_WRITE_FW(PRIMPOS(plane), 0);
> > - I915_WRITE_FW(PRIMCNSTALPHA(plane), 0);
> > + I915_WRITE_FW(PRIMPOS(plane_id), 0);
> > + I915_WRITE_FW(PRIMCNSTALPHA(plane_id), 0);
> > }
> >
> > I915_WRITE_FW(reg, dspcntr);
> >
> > - I915_WRITE_FW(DSPSTRIDE(plane), fb->pitches[0]);
> > + I915_WRITE_FW(DSPSTRIDE(plane_id), fb->pitches[0]);
> > if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
> > - I915_WRITE_FW(DSPSURF(plane),
> > + I915_WRITE_FW(DSPSURF(plane_id),
> > intel_plane_ggtt_offset(plane_state) +
> > crtc->dspaddr_offset);
> > - I915_WRITE_FW(DSPOFFSET(plane), (y << 16) | x);
> > + I915_WRITE_FW(DSPOFFSET(plane_id), (y << 16) | x);
> > } else if (INTEL_GEN(dev_priv) >= 4) {
> > - I915_WRITE_FW(DSPSURF(plane),
> > + I915_WRITE_FW(DSPSURF(plane_id),
> > intel_plane_ggtt_offset(plane_state) +
> > crtc->dspaddr_offset);
> > - I915_WRITE_FW(DSPTILEOFF(plane), (y << 16) | x);
> > - I915_WRITE_FW(DSPLINOFF(plane), linear_offset);
> > + I915_WRITE_FW(DSPTILEOFF(plane_id), (y << 16) | x);
> > + I915_WRITE_FW(DSPLINOFF(plane_id), linear_offset);
> > } else {
> > - I915_WRITE_FW(DSPADDR(plane),
> > + I915_WRITE_FW(DSPADDR(plane_id),
> > intel_plane_ggtt_offset(plane_state) +
> > crtc->dspaddr_offset);
> > }
> > @@ -3290,31 +3290,31 @@ static void i9xx_update_primary_plane(struct intel_plane *primary,
> > spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
> > }
> >
> > -static void i9xx_disable_primary_plane(struct intel_plane *primary,
> > - struct intel_crtc *crtc)
> > +static void i9xx_disable_plane(struct intel_plane *plane,
> > + struct intel_crtc *crtc)
> > {
> > - struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
> > - enum plane plane = primary->plane;
> > + struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
> > + enum old_plane_id plane_id = plane->plane;
> > unsigned long irqflags;
> >
> > spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> >
> > - I915_WRITE_FW(DSPCNTR(plane), 0);
> > - if (INTEL_INFO(dev_priv)->gen >= 4)
> > - I915_WRITE_FW(DSPSURF(plane), 0);
> > + I915_WRITE_FW(DSPCNTR(plane_id), 0);
> > + if (INTEL_GEN(dev_priv) >= 4)
> > + I915_WRITE_FW(DSPSURF(plane_id), 0);
> > else
> > - I915_WRITE_FW(DSPADDR(plane), 0);
> > - POSTING_READ_FW(DSPCNTR(plane));
> > + I915_WRITE_FW(DSPADDR(plane_id), 0);
> > + POSTING_READ_FW(DSPCNTR(plane_id));
> >
> > spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
> > }
> >
> > -static bool i9xx_plane_get_hw_state(struct intel_plane *primary)
> > +static bool i9xx_plane_get_hw_state(struct intel_plane *plane)
> > {
> > - struct drm_i915_private *dev_priv = to_i915(primary->base.dev);
> > - enum plane plane = primary->plane;
> > + struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
> > + enum old_plane_id plane_id = plane->plane;
> >
> > - return I915_READ(DSPCNTR(plane)) & DISPLAY_PLANE_ENABLE;
> > + return I915_READ(DSPCNTR(plane_id)) & DISPLAY_PLANE_ENABLE;
> > }
> >
> > static u32
> > @@ -13195,9 +13195,9 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
> > * port is hooked to pipe B. Hence we want plane A feeding pipe B.
> > */
> > if (HAS_FBC(dev_priv) && INTEL_GEN(dev_priv) < 4)
> > - primary->plane = (enum plane) !pipe;
> > + primary->plane = (enum old_plane_id) !pipe;
> > else
> > - primary->plane = (enum plane) pipe;
> > + primary->plane = (enum old_plane_id) pipe;
> > primary->id = PLANE_PRIMARY;
> > primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe);
> > primary->check_plane = intel_check_primary_plane;
> > @@ -13226,16 +13226,16 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
> > num_formats = ARRAY_SIZE(i965_primary_formats);
> > modifiers = i9xx_format_modifiers;
> >
> > - primary->update_plane = i9xx_update_primary_plane;
> > - primary->disable_plane = i9xx_disable_primary_plane;
> > + primary->update_plane = i9xx_update_plane;
> > + primary->disable_plane = i9xx_disable_plane;
> > primary->get_hw_state = i9xx_plane_get_hw_state;
> > } else {
> > intel_primary_formats = i8xx_primary_formats;
> > num_formats = ARRAY_SIZE(i8xx_primary_formats);
> > modifiers = i9xx_format_modifiers;
> >
> > - primary->update_plane = i9xx_update_primary_plane;
> > - primary->disable_plane = i9xx_disable_primary_plane;
> > + primary->update_plane = i9xx_update_plane;
> > + primary->disable_plane = i9xx_disable_plane;
> > primary->get_hw_state = i9xx_plane_get_hw_state;
>
> Misplace hunk I presume, presumable in the patch reordering. Please split
> out.
>
> With those two bikesheds addressed:
>
> Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
>
> (for both of the resulting patches, assuming you still appease CI and gcc
> and the 2nd patch has a reasonable commit message ofc).
>
> Cheers, Daniel
>
> > }
> >
> > @@ -13319,7 +13319,7 @@ intel_cursor_plane_create(struct drm_i915_private *dev_priv,
> > cursor->can_scale = false;
> > cursor->max_downscale = 1;
> > cursor->pipe = pipe;
> > - cursor->plane = pipe;
> > + cursor->plane = (enum old_plane_id) pipe;
> > cursor->id = PLANE_CURSOR;
> > cursor->frontbuffer_bit = INTEL_FRONTBUFFER_CURSOR(pipe);
> >
> > @@ -14693,11 +14693,11 @@ void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
> > }
> >
> > static bool intel_plane_mapping_ok(struct intel_crtc *crtc,
> > - struct intel_plane *primary)
> > + struct intel_plane *plane)
> > {
> > struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
> > - enum plane plane = primary->plane;
> > - u32 val = I915_READ(DSPCNTR(plane));
> > + enum old_plane_id plane_id = plane->plane;
> > + u32 val = I915_READ(DSPCNTR(plane_id));
> >
> > return (val & DISPLAY_PLANE_ENABLE) == 0 ||
> > (val & DISPPLANE_SEL_PIPE_MASK) == DISPPLANE_SEL_PIPE(crtc->pipe);
> > diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> > index 24bbf0518473..08318260453b 100644
> > --- a/drivers/gpu/drm/i915/intel_drv.h
> > +++ b/drivers/gpu/drm/i915/intel_drv.h
> > @@ -793,7 +793,7 @@ struct intel_crtc_state {
> > struct intel_crtc {
> > struct drm_crtc base;
> > enum pipe pipe;
> > - enum plane plane;
> > + enum old_plane_id plane;
> > /*
> > * Whether the crtc and the connected output pipeline is active. Implies
> > * that crtc->enabled is set, i.e. the current mode configuration has
> > @@ -846,7 +846,7 @@ struct intel_crtc {
> >
> > struct intel_plane {
> > struct drm_plane base;
> > - u8 plane;
> > + enum old_plane_id plane;
> > enum plane_id id;
> > enum pipe pipe;
> > bool can_scale;
> > @@ -1133,7 +1133,7 @@ intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
> > }
> >
> > static inline struct intel_crtc *
> > -intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum plane plane)
> > +intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum old_plane_id plane)
> > {
> > return dev_priv->plane_to_crtc_mapping[plane];
> > }
> > --
> > 2.13.6
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch
--
Ville Syrjälä
Intel OTC
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