[PATCH 1/5] drm/i915: make pitch_for_width take a tiled arg

Jesse Barnes
2013-11-13T18:20:52Z

And move it up in the file for earlier usage.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
drivers/gpu/drm/i915/intel_display.c | 26 ++++++++++++++++----------
1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 2df2366..d4cc00c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5452,6 +5452,17 @@ static void vlv_crtc_clock_get(struct intel_crtc *crtc,
pipe_config->port_clock = clock.dot / 5;
}

+static u32
+intel_framebuffer_pitch_for_width(int width, int bpp, bool tiled)
+{
+ u32 pitch = DIV_ROUND_UP(width * bpp, 8);
+
+ if (tiled)
+ return ALIGN(pitch, 512);
+ else
+ return ALIGN(pitch, 64);
+}
+
static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
struct intel_crtc_config *pipe_config)
{
@@ -7629,16 +7640,10 @@ err:
}

static u32
-intel_framebuffer_pitch_for_width(int width, int bpp)
-{
- u32 pitch = DIV_ROUND_UP(width * bpp, 8);
- return ALIGN(pitch, 64);
-}
-
-static u32
intel_framebuffer_size_for_mode(struct drm_display_mode *mode, int bpp)
{
- u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp);
+ u32 pitch = intel_framebuffer_pitch_for_width(mode->hdisplay, bpp,
+ false);
return ALIGN(pitch * mode->vdisplay, PAGE_SIZE);
}

@@ -7658,7 +7663,7 @@ intel_framebuffer_create_for_mode(struct drm_device *dev,
mode_cmd.width = mode->hdisplay;
mode_cmd.height = mode->vdisplay;
mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
- bpp);
+ bpp, false);
mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);

return intel_framebuffer_create(dev, &mode_cmd, obj);
@@ -7682,7 +7687,8 @@ mode_fits_in_fbdev(struct drm_device *dev,

fb = &dev_priv->fbdev->ifb.base;
if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
- fb->bits_per_pixel))
+ fb->bits_per_pixel,
+ false))
return NULL;

if (obj->base.size < mode->vdisplay * fb->pitches[0])
--
1.8.4.2