From: Ville Syrjälä Date: Thu, 19 Jul 2018 18:21:57 +0000 (+0300) Subject: drm/i915: Fix glk/cnl display w/a #1175 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b1f1c2c11fc6c6cd3e361061e30f9b2839897b28;p=openwrt%2Fstaging%2Fblogic.git drm/i915: Fix glk/cnl display w/a #1175 The workaround was supposed to look at the plane destination coordinates. Currently it's looking at some mixture of src and dst coordinates that doesn't make sense. Fix it up. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20180719182214.4323-2-ville.syrjala@linux.intel.com Fixes: 394676f05bee (drm/i915: Add WA for planes ending close to left screen edge) Reviewed-by: Imre Deak --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 95e9cad5b4de..b4566c2f5d28 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2988,6 +2988,7 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state, int w = drm_rect_width(&plane_state->base.src) >> 16; int h = drm_rect_height(&plane_state->base.src) >> 16; int dst_x = plane_state->base.dst.x1; + int dst_w = drm_rect_width(&plane_state->base.dst); int pipe_src_w = crtc_state->pipe_src_w; int max_width = skl_max_plane_width(fb, 0, rotation); int max_height = 4096; @@ -3009,10 +3010,10 @@ static int skl_check_main_surface(const struct intel_crtc_state *crtc_state, * screen may cause FIFO underflow and display corruption. */ if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) && - (dst_x + w < 4 || dst_x > pipe_src_w - 4)) { + (dst_x + dst_w < 4 || dst_x > pipe_src_w - 4)) { DRM_DEBUG_KMS("requested plane X %s position %d invalid (valid range %d-%d)\n", - dst_x + w < 4 ? "end" : "start", - dst_x + w < 4 ? dst_x + w : dst_x, + dst_x + dst_w < 4 ? "end" : "start", + dst_x + dst_w < 4 ? dst_x + dst_w : dst_x, 4, pipe_src_w - 4); return -ERANGE; }