Hi all, Today's linux-next merge of the drm-misc tree got a conflict in: drivers/gpu/drm/i915/intel_pm.c between commit: 1186fa85eb9b ("drm/i915/gen9: minimum scanlines for Y tile is not always 4") from the drm-intel tree and commit: bd2ef25d921c ("drm: Add drm_rotation_90_or_270()") from the drm-misc tree. I fixed it up (see below) and can carry the fix as necessary. This is now fixed as far as linux-next is concerned, but any non trivial conflicts should be mentioned to your upstream maintainer when your tree is submitted for merging. You may also want to consider cooperating with the maintainer of the conflicting tree to minimise any particularly complex conflicts. -- Cheers, Stephen Rothwell diff --cc drivers/gpu/drm/i915/intel_pm.c index ea01b406d776,1472400ddce3..000000000000 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@@ -3601,42 -3560,6 +3601,42 @@@ static int skl_compute_plane_wm(const s cpp = drm_format_plane_cpp(fb->pixel_format, 0); plane_pixel_rate = skl_adjusted_plane_pixel_rate(cstate, intel_pstate); - if (intel_rotation_90_or_270(pstate->rotation)) { ++ if (drm_rotation_90_or_270(pstate->rotation)) { + int cpp = (fb->pixel_format == DRM_FORMAT_NV12) ? + drm_format_plane_cpp(fb->pixel_format, 1) : + drm_format_plane_cpp(fb->pixel_format, 0); + + switch (cpp) { + case 1: + y_min_scanlines = 16; + break; + case 2: + y_min_scanlines = 8; + break; + case 4: + y_min_scanlines = 4; + break; + default: + MISSING_CASE(cpp); + return -EINVAL; + } + } else { + y_min_scanlines = 4; + } + + plane_bytes_per_line = width * cpp; + if (fb->modifier[0] == I915_FORMAT_MOD_Y_TILED || + fb->modifier[0] == I915_FORMAT_MOD_Yf_TILED) { + plane_blocks_per_line = + DIV_ROUND_UP(plane_bytes_per_line * y_min_scanlines, 512); + plane_blocks_per_line /= y_min_scanlines; + } else if (fb->modifier[0] == DRM_FORMAT_MOD_NONE) { + plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512) + + 1; + } else { + plane_blocks_per_line = DIV_ROUND_UP(plane_bytes_per_line, 512); + } + method1 = skl_wm_method1(plane_pixel_rate, cpp, latency); method2 = skl_wm_method2(plane_pixel_rate, cstate->base.adjusted_mode.crtc_htotal, -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html