diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 45 |
1 files changed, 31 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 3617927af269..96b0b01677e2 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4598,7 +4598,7 @@ static void cpt_verify_modeset(struct drm_device *dev, int pipe) static int skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, - unsigned scaler_user, int *scaler_id, unsigned int rotation, + unsigned int scaler_user, int *scaler_id, int src_w, int src_h, int dst_w, int dst_h) { struct intel_crtc_scaler_state *scaler_state = @@ -4607,9 +4607,12 @@ skl_update_scaler(struct intel_crtc_state *crtc_state, bool force_detach, to_intel_crtc(crtc_state->base.crtc); int need_scaling; - need_scaling = drm_rotation_90_or_270(rotation) ? - (src_h != dst_w || src_w != dst_h): - (src_w != dst_w || src_h != dst_h); + /* + * Src coordinates are already rotated by 270 degrees for + * the 90/270 degree plane rotation cases (to match the + * GTT mapping), hence no need to account for rotation here. + */ + need_scaling = src_w != dst_w || src_h != dst_h; /* * if plane is being disabled or scaler is no more required or force detach @@ -4671,7 +4674,7 @@ int skl_update_scaler_crtc(struct intel_crtc_state *state) const struct drm_display_mode *adjusted_mode = &state->base.adjusted_mode; return skl_update_scaler(state, !state->base.active, SKL_CRTC_INDEX, - &state->scaler_state.scaler_id, DRM_ROTATE_0, + &state->scaler_state.scaler_id, state->pipe_src_w, state->pipe_src_h, adjusted_mode->crtc_hdisplay, adjusted_mode->crtc_vdisplay); } @@ -4700,7 +4703,6 @@ static int skl_update_scaler_plane(struct intel_crtc_state *crtc_state, ret = skl_update_scaler(crtc_state, force_detach, drm_plane_index(&intel_plane->base), &plane_state->scaler_id, - plane_state->base.rotation, drm_rect_width(&plane_state->base.src) >> 16, drm_rect_height(&plane_state->base.src) >> 16, drm_rect_width(&plane_state->base.dst), @@ -6101,7 +6103,7 @@ retry: pipe_config->fdi_lanes = lane; intel_link_compute_m_n(pipe_config->pipe_bpp, lane, fdi_dotclock, - link_bw, &pipe_config->fdi_m_n); + link_bw, &pipe_config->fdi_m_n, false); ret = ironlake_check_fdi_lanes(dev, intel_crtc->pipe, pipe_config); if (ret == -EINVAL && pipe_config->pipe_bpp > 6*3) { @@ -6277,7 +6279,8 @@ intel_reduce_m_n_ratio(uint32_t *num, uint32_t *den) } static void compute_m_n(unsigned int m, unsigned int n, - uint32_t *ret_m, uint32_t *ret_n) + uint32_t *ret_m, uint32_t *ret_n, + bool reduce_m_n) { /* * Reduce M/N as much as possible without loss in precision. Several DP @@ -6285,9 +6288,11 @@ static void compute_m_n(unsigned int m, unsigned int n, * values. The passed in values are more likely to have the least * significant bits zero than M after rounding below, so do this first. */ - while ((m & 1) == 0 && (n & 1) == 0) { - m >>= 1; - n >>= 1; + if (reduce_m_n) { + while ((m & 1) == 0 && (n & 1) == 0) { + m >>= 1; + n >>= 1; + } } *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); @@ -6298,16 +6303,19 @@ static void compute_m_n(unsigned int m, unsigned int n, void intel_link_compute_m_n(int bits_per_pixel, int nlanes, int pixel_clock, int link_clock, - struct intel_link_m_n *m_n) + struct intel_link_m_n *m_n, + bool reduce_m_n) { m_n->tu = 64; compute_m_n(bits_per_pixel * pixel_clock, link_clock * nlanes * 8, - &m_n->gmch_m, &m_n->gmch_n); + &m_n->gmch_m, &m_n->gmch_n, + reduce_m_n); compute_m_n(pixel_clock, link_clock, - &m_n->link_m, &m_n->link_n); + &m_n->link_m, &m_n->link_n, + reduce_m_n); } static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv) @@ -12197,6 +12205,15 @@ static void update_scanline_offset(struct intel_crtc *crtc) * type. For DP ports it behaves like most other platforms, but on HDMI * there's an extra 1 line difference. So we need to add two instead of * one to the value. + * + * On VLV/CHV DSI the scanline counter would appear to increment + * approx. 1/3 of a scanline before start of vblank. Unfortunately + * that means we can't tell whether we're in vblank or not while + * we're on that particular line. We must still set scanline_offset + * to 1 so that the vblank timestamps come out correct when we query + * the scanline counter from within the vblank interrupt handler. + * However if queried just before the start of vblank we'll get an + * answer that's slightly in the future. */ if (IS_GEN2(dev_priv)) { const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode; |