[PATCH 2/2] drm/i915: In DBUF/WM calcs for 90/270, swap w & h

Chandra Konduru
2015-06-26T13:52:48Z

This patch swaps src width and height for dbuf/wm calculations
when rotation is 90/270 as per hw requirements.

Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 32 ++++++++++++++++++++++++++++----
1 file changed, 28 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ea3e435..767313b 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2913,6 +2913,8 @@ static void skl_compute_wm_pipe_parameters(struct drm_crtc *crtc,
enum pipe pipe = intel_crtc->pipe;
struct drm_plane *plane;
struct drm_framebuffer *fb;
+ struct intel_plane_state *plane_state;
+ int src_w, src_h;
int i = 1; /* Index for sprite planes start */

p->active = intel_crtc->active;
@@ -2921,6 +2923,7 @@ static void skl_compute_wm_pipe_parameters(struct drm_crtc *crtc,
p->pixel_rate = skl_pipe_pixel_rate(intel_crtc->config);

fb = crtc->primary->state->fb;
+ plane_state = to_intel_plane_state(crtc->primary->state);
/* For planar: Bpp is for uv plane, y_Bpp is for y plane */
if (fb) {
p->plane[0].enabled = true;
@@ -2935,8 +2938,22 @@ static void skl_compute_wm_pipe_parameters(struct drm_crtc *crtc,
p->plane[0].y_bytes_per_pixel = 0;
p->plane[0].tiling = DRM_FORMAT_MOD_NONE;
}
- p->plane[0].horiz_pixels = intel_crtc->config->pipe_src_w;
- p->plane[0].vert_pixels = intel_crtc->config->pipe_src_h;
+
+ if (drm_rect_width(&plane_state->src)) {
+ src_w = drm_rect_width(&plane_state->src) >> 16;
+ src_h = drm_rect_height(&plane_state->src) >> 16;
+ } else {
+ src_w = intel_crtc->config->pipe_src_w;
+ src_h = intel_crtc->config->pipe_src_h;
+ }
+
+ if (intel_rotation_90_or_270(crtc->primary->state->rotation)) {
+ p->plane[0].horiz_pixels = src_h;
+ p->plane[0].vert_pixels = src_w;
+ } else {
+ p->plane[0].horiz_pixels = src_w;
+ p->plane[0].vert_pixels = src_h;
+ }
p->plane[0].rotation = crtc->primary->state->rotation;

fb = crtc->cursor->state->fb;
@@ -3468,8 +3485,15 @@ skl_update_sprite_wm(struct drm_plane *plane, struct drm_crtc *crtc,

intel_plane->wm.enabled = enabled;
intel_plane->wm.scaled = scaled;
- intel_plane->wm.horiz_pixels = sprite_width;
- intel_plane->wm.vert_pixels = sprite_height;
+
+ if (intel_rotation_90_or_270(plane->state->rotation)) {
+ intel_plane->wm.horiz_pixels = sprite_height;
+ intel_plane->wm.vert_pixels = sprite_width;
+ } else {
+ intel_plane->wm.horiz_pixels = sprite_width;
+ intel_plane->wm.vert_pixels = sprite_height;
+ }
+
intel_plane->wm.tiling = DRM_FORMAT_MOD_NONE;

/* For planar: Bpp is for UV plane, y_Bpp is for Y plane */