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drm/i915: Enable aspect/centering panel fitting for Ironlake. 

v2: Hook in DP paths to keep FULLSCREEN panel fitting on eDP.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Chris Wilson 2010-08-07 11:01:28 +01:00 committed by Eric Anholt
parent 2e88e40bed
commit 1d8e1c75ff
7 changed files with 143 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/Makefile
View File

@ -19,6 +19,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
intel_hdmi.o \
intel_sdvo.o \
intel_modes.o \
intel_panel.o \
intel_i2c.o \
intel_fb.o \
intel_tv.o \

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -614,6 +614,8 @@ typedef struct drm_i915_private {
struct sdvo_device_mapping sdvo_mappings[2];
/* indicate whether the LVDS_BORDER should be enabled or not */
unsigned int lvds_border_bits;
/* Panel fitter placement and size for Ironlake+ */
u32 pch_pf_pos, pch_pf_size;
struct drm_crtc *plane_to_crtc_mapping[2];
struct drm_crtc *pipe_to_crtc_mapping[2];

16
drivers/gpu/drm/i915/intel_display.c
View File

@ -2005,15 +2005,13 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode)
/* Enable panel fitting for LVDS */
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)
|| HAS_eDP || intel_pch_has_edp(crtc)) {
temp = I915_READ(pf_ctl_reg);
I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3);
/* currently full aspect */
I915_WRITE(pf_win_pos, 0);
I915_WRITE(pf_win_size,
(dev_priv->panel_fixed_mode->hdisplay << 16) |
(dev_priv->panel_fixed_mode->vdisplay));
if (dev_priv->pch_pf_size) {
temp = I915_READ(pf_ctl_reg);
I915_WRITE(pf_ctl_reg, temp | PF_ENABLE | PF_FILTER_MED_3x3);
I915_WRITE(pf_win_pos, dev_priv->pch_pf_pos);
I915_WRITE(pf_win_size, dev_priv->pch_pf_size);
} else
I915_WRITE(pf_ctl_reg, temp & ~PF_ENABLE);
}
/* Enable CPU pipe */

20
drivers/gpu/drm/i915/intel_dp.c
View File

@ -523,21 +523,9 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
if ((IS_eDP(intel_dp) || IS_PCH_eDP(intel_dp)) &&
dev_priv->panel_fixed_mode) {
struct drm_display_mode *fixed_mode = dev_priv->panel_fixed_mode;
adjusted_mode->hdisplay = fixed_mode->hdisplay;
adjusted_mode->hsync_start = fixed_mode->hsync_start;
adjusted_mode->hsync_end = fixed_mode->hsync_end;
adjusted_mode->htotal = fixed_mode->htotal;
adjusted_mode->vdisplay = fixed_mode->vdisplay;
adjusted_mode->vsync_start = fixed_mode->vsync_start;
adjusted_mode->vsync_end = fixed_mode->vsync_end;
adjusted_mode->vtotal = fixed_mode->vtotal;
adjusted_mode->clock = fixed_mode->clock;
drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
intel_fixed_panel_mode(dev_priv->panel_fixed_mode, adjusted_mode);
intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
mode, adjusted_mode);
/*
* the mode->clock is used to calculate the Data&Link M/N
* of the pipe. For the eDP the fixed clock should be used.
@ -572,8 +560,10 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
"count %d clock %d\n",
intel_dp->link_bw, intel_dp->lane_count,
adjusted_mode->clock);
return true;
}
return false;
}

7
drivers/gpu/drm/i915/intel_drv.h
View File

@ -186,6 +186,13 @@ extern bool intel_dpd_is_edp(struct drm_device *dev);
extern void intel_edp_link_config (struct intel_encoder *, int *, int *);
extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode);
extern void intel_pch_panel_fitting(struct drm_device *dev,
int fitting_mode,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
extern int intel_panel_fitter_pipe (struct drm_device *dev);
extern void intel_crtc_load_lut(struct drm_crtc *crtc);
extern void intel_encoder_prepare (struct drm_encoder *encoder);

32
drivers/gpu/drm/i915/intel_lvds.c
View File

@ -246,26 +246,20 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
/* If we don't have a panel mode, there is nothing we can do */
if (dev_priv->panel_fixed_mode == NULL)
return true;
/*
* We have timings from the BIOS for the panel, put them in
* to the adjusted mode. The CRTC will be set up for this mode,
* with the panel scaling set up to source from the H/VDisplay
* of the original mode.
*/
adjusted_mode->hdisplay = dev_priv->panel_fixed_mode->hdisplay;
adjusted_mode->hsync_start =
dev_priv->panel_fixed_mode->hsync_start;
adjusted_mode->hsync_end =
dev_priv->panel_fixed_mode->hsync_end;
adjusted_mode->htotal = dev_priv->panel_fixed_mode->htotal;
adjusted_mode->vdisplay = dev_priv->panel_fixed_mode->vdisplay;
adjusted_mode->vsync_start =
dev_priv->panel_fixed_mode->vsync_start;
adjusted_mode->vsync_end =
dev_priv->panel_fixed_mode->vsync_end;
adjusted_mode->vtotal = dev_priv->panel_fixed_mode->vtotal;
adjusted_mode->clock = dev_priv->panel_fixed_mode->clock;
drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
intel_fixed_panel_mode(dev_priv->panel_fixed_mode, adjusted_mode);
if (HAS_PCH_SPLIT(dev)) {
intel_pch_panel_fitting(dev, intel_lvds->fitting_mode,
mode, adjusted_mode);
return true;
}
/* Make sure pre-965s set dither correctly */
if (!IS_I965G(dev)) {
@ -278,10 +272,6 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
adjusted_mode->vdisplay == mode->vdisplay)
goto out;
/* full screen scale for now */
if (HAS_PCH_SPLIT(dev))
goto out;
/* 965+ wants fuzzy fitting */
if (IS_I965G(dev))
pfit_control |= ((intel_crtc->pipe << PFIT_PIPE_SHIFT) |
@ -293,10 +283,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
* to register description and PRM.
* Change the value here to see the borders for debugging
*/
if (!HAS_PCH_SPLIT(dev)) {
I915_WRITE(BCLRPAT_A, 0);
I915_WRITE(BCLRPAT_B, 0);
}
I915_WRITE(BCLRPAT_A, 0);
I915_WRITE(BCLRPAT_B, 0);
switch (intel_lvds->fitting_mode) {
case DRM_MODE_SCALE_CENTER:

111
drivers/gpu/drm/i915/intel_panel.c Normal file
View File

@ -0,0 +1,111 @@
/*
* Copyright © 2006-2010 Intel Corporation
* Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
* Dave Airlie <airlied@linux.ie>
* Jesse Barnes <jesse.barnes@intel.com>
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "intel_drv.h"
void
intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
struct drm_display_mode *adjusted_mode)
{
adjusted_mode->hdisplay = fixed_mode->hdisplay;
adjusted_mode->hsync_start = fixed_mode->hsync_start;
adjusted_mode->hsync_end = fixed_mode->hsync_end;
adjusted_mode->htotal = fixed_mode->htotal;
adjusted_mode->vdisplay = fixed_mode->vdisplay;
adjusted_mode->vsync_start = fixed_mode->vsync_start;
adjusted_mode->vsync_end = fixed_mode->vsync_end;
adjusted_mode->vtotal = fixed_mode->vtotal;
adjusted_mode->clock = fixed_mode->clock;
drm_mode_set_crtcinfo(adjusted_mode, CRTC_INTERLACE_HALVE_V);
}
/* adjusted_mode has been preset to be the panel's fixed mode */
void
intel_pch_panel_fitting(struct drm_device *dev,
int fitting_mode,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int x, y, width, height;
x = y = width = height = 0;
/* Native modes don't need fitting */
if (adjusted_mode->hdisplay == mode->hdisplay &&
adjusted_mode->vdisplay == mode->vdisplay)
goto done;
switch (fitting_mode) {
case DRM_MODE_SCALE_CENTER:
width = mode->hdisplay;
height = mode->vdisplay;
x = (adjusted_mode->hdisplay - width + 1)/2;
y = (adjusted_mode->vdisplay - height + 1)/2;
break;
case DRM_MODE_SCALE_ASPECT:
/* Scale but preserve the aspect ratio */
{
u32 scaled_width = adjusted_mode->hdisplay * mode->vdisplay;
u32 scaled_height = mode->hdisplay * adjusted_mode->vdisplay;
if (scaled_width > scaled_height) { /* pillar */
width = scaled_height / mode->vdisplay;
x = (adjusted_mode->hdisplay - width + 1) / 2;
y = 0;
height = adjusted_mode->vdisplay;
} else if (scaled_width < scaled_height) { /* letter */
height = scaled_width / mode->hdisplay;
y = (adjusted_mode->vdisplay - height + 1) / 2;
x = 0;
width = adjusted_mode->hdisplay;
} else {
x = y = 0;
width = adjusted_mode->hdisplay;
height = adjusted_mode->vdisplay;
}
}
break;
default:
case DRM_MODE_SCALE_FULLSCREEN:
x = y = 0;
width = adjusted_mode->hdisplay;
height = adjusted_mode->vdisplay;
break;
}
done:
dev_priv->pch_pf_pos = (x << 16) | y;
dev_priv->pch_pf_size = (width << 16) | height;
}