diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 79 |
1 files changed, 67 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7006f94b94c1..af2606098cf9 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -2639,8 +2639,18 @@ void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv, } static unsigned int -skl_plane_relative_data_rate(const struct intel_plane_wm_parameters *p) +skl_plane_relative_data_rate(const struct intel_plane_wm_parameters *p, int y) { + + /* for planar format */ + if (p->y_bytes_per_pixel) { + if (y) /* y-plane data rate */ + return p->horiz_pixels * p->vert_pixels * p->y_bytes_per_pixel; + else /* uv-plane data rate */ + return (p->horiz_pixels/2) * (p->vert_pixels/2) * p->bytes_per_pixel; + } + + /* for packed formats */ return p->horiz_pixels * p->vert_pixels * p->bytes_per_pixel; } @@ -2663,7 +2673,10 @@ skl_get_total_relative_data_rate(struct intel_crtc *intel_crtc, if (!p->enabled) continue; - total_data_rate += skl_plane_relative_data_rate(p); + total_data_rate += skl_plane_relative_data_rate(p, 0); /* packed/uv */ + if (p->y_bytes_per_pixel) { + total_data_rate += skl_plane_relative_data_rate(p, 1); /* y-plane */ + } } return total_data_rate; @@ -2682,6 +2695,7 @@ skl_allocate_pipe_ddb(struct drm_crtc *crtc, struct skl_ddb_entry *alloc = &ddb->pipe[pipe]; uint16_t alloc_size, start, cursor_blocks; uint16_t minimum[I915_MAX_PLANES]; + uint16_t y_minimum[I915_MAX_PLANES]; unsigned int total_data_rate; int plane; @@ -2710,6 +2724,8 @@ skl_allocate_pipe_ddb(struct drm_crtc *crtc, minimum[plane] = 8; alloc_size -= minimum[plane]; + y_minimum[plane] = p->y_bytes_per_pixel ? 8 : 0; + alloc_size -= y_minimum[plane]; } /* @@ -2723,16 +2739,17 @@ skl_allocate_pipe_ddb(struct drm_crtc *crtc, start = alloc->start; for (plane = 0; plane < intel_num_planes(intel_crtc); plane++) { const struct intel_plane_wm_parameters *p; - unsigned int data_rate; - uint16_t plane_blocks; + unsigned int data_rate, y_data_rate; + uint16_t plane_blocks, y_plane_blocks = 0; p = ¶ms->plane[plane]; if (!p->enabled) continue; - data_rate = skl_plane_relative_data_rate(p); + data_rate = skl_plane_relative_data_rate(p, 0); /* + * allocation for (packed formats) or (uv-plane part of planar format): * promote the expression to 64 bits to avoid overflowing, the * result is < available as data_rate / total_data_rate < 1 */ @@ -2744,6 +2761,22 @@ skl_allocate_pipe_ddb(struct drm_crtc *crtc, ddb->plane[pipe][plane].end = start + plane_blocks; start += plane_blocks; + + /* + * allocation for y_plane part of planar format: + */ + if (p->y_bytes_per_pixel) { + y_data_rate = skl_plane_relative_data_rate(p, 1); + y_plane_blocks = y_minimum[plane]; + y_plane_blocks += div_u64((uint64_t)alloc_size * y_data_rate, + total_data_rate); + + ddb->y_plane[pipe][plane].start = start; + ddb->y_plane[pipe][plane].end = start + y_plane_blocks; + + start += y_plane_blocks; + } + } } @@ -2856,13 +2889,18 @@ 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; + /* For planar: Bpp is for uv plane, y_Bpp is for y plane */ if (fb) { p->plane[0].enabled = true; - p->plane[0].bytes_per_pixel = fb->bits_per_pixel / 8; + p->plane[0].bytes_per_pixel = fb->pixel_format == DRM_FORMAT_NV12 ? + drm_format_plane_cpp(fb->pixel_format, 1) : fb->bits_per_pixel / 8; + p->plane[0].y_bytes_per_pixel = fb->pixel_format == DRM_FORMAT_NV12 ? + drm_format_plane_cpp(fb->pixel_format, 0) : 0; p->plane[0].tiling = fb->modifier[0]; } else { p->plane[0].enabled = false; p->plane[0].bytes_per_pixel = 0; + 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; @@ -2870,6 +2908,7 @@ static void skl_compute_wm_pipe_parameters(struct drm_crtc *crtc, p->plane[0].rotation = crtc->primary->state->rotation; fb = crtc->cursor->state->fb; + p->cursor.y_bytes_per_pixel = 0; if (fb) { p->cursor.enabled = true; p->cursor.bytes_per_pixel = fb->bits_per_pixel / 8; @@ -2905,22 +2944,25 @@ static bool skl_compute_plane_wm(const struct drm_i915_private *dev_priv, uint32_t plane_bytes_per_line, plane_blocks_per_line; uint32_t res_blocks, res_lines; uint32_t selected_result; + uint8_t bytes_per_pixel; if (latency == 0 || !p->active || !p_params->enabled) return false; + bytes_per_pixel = p_params->y_bytes_per_pixel ? + p_params->y_bytes_per_pixel : + p_params->bytes_per_pixel; method1 = skl_wm_method1(p->pixel_rate, - p_params->bytes_per_pixel, + bytes_per_pixel, latency); method2 = skl_wm_method2(p->pixel_rate, p->pipe_htotal, p_params->horiz_pixels, - p_params->bytes_per_pixel, + bytes_per_pixel, p_params->tiling, latency); - plane_bytes_per_line = p_params->horiz_pixels * - p_params->bytes_per_pixel; + plane_bytes_per_line = p_params->horiz_pixels * bytes_per_pixel; plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512); if (p_params->tiling == I915_FORMAT_MOD_Y_TILED || @@ -3137,10 +3179,14 @@ static void skl_write_wm_values(struct drm_i915_private *dev_priv, new->plane_trans[pipe][i]); I915_WRITE(CUR_WM_TRANS(pipe), new->cursor_trans[pipe]); - for (i = 0; i < intel_num_planes(crtc); i++) + for (i = 0; i < intel_num_planes(crtc); i++) { skl_ddb_entry_write(dev_priv, PLANE_BUF_CFG(pipe, i), &new->ddb.plane[pipe][i]); + skl_ddb_entry_write(dev_priv, + PLANE_NV12_BUF_CFG(pipe, i), + &new->ddb.y_plane[pipe][i]); + } skl_ddb_entry_write(dev_priv, CUR_BUF_CFG(pipe), &new->ddb.cursor[pipe]); @@ -3298,6 +3344,7 @@ static bool skl_update_pipe_wm(struct drm_crtc *crtc, return false; intel_crtc->wm.skl_active = *pipe_wm; + return true; } @@ -3391,8 +3438,16 @@ skl_update_sprite_wm(struct drm_plane *plane, struct drm_crtc *crtc, intel_plane->wm.scaled = scaled; intel_plane->wm.horiz_pixels = sprite_width; intel_plane->wm.vert_pixels = sprite_height; - intel_plane->wm.bytes_per_pixel = pixel_size; intel_plane->wm.tiling = DRM_FORMAT_MOD_NONE; + + /* For planar: Bpp is for UV plane, y_Bpp is for Y plane */ + intel_plane->wm.bytes_per_pixel = + (fb && fb->pixel_format == DRM_FORMAT_NV12) ? + drm_format_plane_cpp(plane->state->fb->pixel_format, 1) : pixel_size; + intel_plane->wm.y_bytes_per_pixel = + (fb && fb->pixel_format == DRM_FORMAT_NV12) ? + drm_format_plane_cpp(plane->state->fb->pixel_format, 0) : 0; + /* * Framebuffer can be NULL on plane disable, but it does not * matter for watermarks if we assume no tiling in that case. |