drm/i915: s/tile_width/tile_width_bytes/

Make if clear whether we're talking tile widths in bytes or in pixels.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1455569699-27905-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 368d247..dd68164 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2225,8 +2225,8 @@ static unsigned int intel_tile_size(const struct drm_i915_private *dev_priv)
        return IS_GEN2(dev_priv) ? 2048 : 4096;
 }
 
-static unsigned int intel_tile_width(const struct drm_i915_private *dev_priv,
-                                    uint64_t fb_modifier, unsigned int cpp)
+static unsigned int intel_tile_width_bytes(const struct drm_i915_private *dev_priv,
+                                          uint64_t fb_modifier, unsigned int cpp)
 {
        switch (fb_modifier) {
        case DRM_FORMAT_MOD_NONE:
@@ -2269,7 +2269,7 @@ unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
                return 1;
        else
                return intel_tile_size(dev_priv) /
-                       intel_tile_width(dev_priv, fb_modifier, cpp);
+                       intel_tile_width_bytes(dev_priv, fb_modifier, cpp);
 }
 
 unsigned int
@@ -2288,7 +2288,7 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
 {
        struct drm_i915_private *dev_priv = to_i915(fb->dev);
        struct intel_rotation_info *info = &view->params.rotated;
-       unsigned int tile_size, tile_width, tile_height, cpp;
+       unsigned int tile_size, tile_width_bytes, tile_height, cpp;
 
        *view = i915_ggtt_view_normal;
 
@@ -2309,19 +2309,19 @@ intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, struct drm_framebuffer *fb,
        tile_size = intel_tile_size(dev_priv);
 
        cpp = drm_format_plane_cpp(fb->pixel_format, 0);
-       tile_width = intel_tile_width(dev_priv, fb->modifier[0], cpp);
-       tile_height = tile_size / tile_width;
+       tile_width_bytes = intel_tile_width_bytes(dev_priv, fb->modifier[0], cpp);
+       tile_height = tile_size / tile_width_bytes;
 
-       info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_width);
+       info->width_pages = DIV_ROUND_UP(fb->pitches[0], tile_width_bytes);
        info->height_pages = DIV_ROUND_UP(fb->height, tile_height);
        info->size = info->width_pages * info->height_pages * tile_size;
 
        if (info->pixel_format == DRM_FORMAT_NV12) {
                cpp = drm_format_plane_cpp(fb->pixel_format, 1);
-               tile_width = intel_tile_width(dev_priv, fb->modifier[1], cpp);
-               tile_height = tile_size / tile_width;
+               tile_width_bytes = intel_tile_width_bytes(dev_priv, fb->modifier[1], cpp);
+               tile_height = tile_size / tile_width_bytes;
 
-               info->width_pages_uv = DIV_ROUND_UP(fb->pitches[1], tile_width);
+               info->width_pages_uv = DIV_ROUND_UP(fb->pitches[1], tile_width_bytes);
                info->height_pages_uv = DIV_ROUND_UP(fb->height / 2, tile_height);
                info->size_uv = info->width_pages_uv * info->height_pages_uv * tile_size;
        }
@@ -2458,18 +2458,18 @@ u32 intel_compute_tile_offset(struct drm_i915_private *dev_priv,
                              unsigned int pitch)
 {
        if (fb_modifier != DRM_FORMAT_MOD_NONE) {
-               unsigned int tile_size, tile_width, tile_height;
+               unsigned int tile_size, tile_width_bytes, tile_height;
                unsigned int tile_rows, tiles;
 
                tile_size = intel_tile_size(dev_priv);
-               tile_width = intel_tile_width(dev_priv, fb_modifier, cpp);
-               tile_height = tile_size / tile_width;
+               tile_width_bytes = intel_tile_width_bytes(dev_priv, fb_modifier, cpp);
+               tile_height = tile_size / tile_width_bytes;
 
                tile_rows = *y / tile_height;
                *y %= tile_height;
 
-               tiles = *x / (tile_width/cpp);
-               *x %= tile_width/cpp;
+               tiles = *x / (tile_width_bytes/cpp);
+               *x %= tile_width_bytes/cpp;
 
                return tile_rows * pitch * tile_height + tiles * tile_size;
        } else {
@@ -2931,7 +2931,7 @@ u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
        } else {
                int cpp = drm_format_plane_cpp(pixel_format, 0);
 
-               return intel_tile_width(dev_priv, fb_modifier, cpp);
+               return intel_tile_width_bytes(dev_priv, fb_modifier, cpp);
        }
 }