From: Chad Versace Date: Wed, 27 Nov 2013 01:04:24 +0000 (-0800) Subject: i965/hsw: Apply non-msrt fast color clear w/a to all HSW GTs X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8b659ce;p=mesa.git i965/hsw: Apply non-msrt fast color clear w/a to all HSW GTs Pre-patch, the workaround was applied to only HSW GT3. However, the workaround also fixes render corruption on the HSW GT1 Chromebook, codenamed Falco. Also, update the BSpec quote that discusses the workaround to reflect the latest BSpec. The BSpec states that the workaround is required for Ivybridge and Baytrail as well as Haswell. But, we apply the workaround to only Haswell because (a) we suspect that is the only hardware where it is actually required and (b) we haven't yet validated the workaround for the other hardware. CC: "9.2, 10.0" CC: Anuj Phogat OTC-Tracker: CHRMOS-812 Reviewed-by: Paul Berry Reviewed-by: Kenneth Graunke Signed-off-by: Chad Versace --- diff --git a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp index 02ec2737ac3..3f096b513fa 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp +++ b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp @@ -265,13 +265,19 @@ brw_blorp_clear_params::brw_blorp_clear_params(struct brw_context *brw, x_align *= 16; y_align *= 32; - if (brw->is_haswell && brw->gt == 3) { + if (brw->is_haswell) { /* From BSpec: 3D-Media-GPGPU Engine > 3D Pipeline > Pixel > Pixel - * Backend > MCS Buffer for Render Target(s) [DevIVB+]: - * [DevHSW:GT3]: Clear rectangle must be aligned to two times the - * number of pixels in the table shown below... - * x_align, y_align values computed above are the relevant entries - * in the referred table. + * Backend > MCS Buffer for Render Target(s) [DevIVB+] > Table "Color + * Clear of Non-MultiSampled Render Target Restrictions": + * + * [IVB, VLVT, HSW]: Clear rectangle must be aligned to two times + * the number of pixels in the table shown below... x_align, + * y_align values computed above are the relevant entries in the + * referred table. + * + * We apply the workaround to only Haswell because (a) we suspect that + * is the only hardware where it is actually required and (b) we + * haven't yet validated the workaround for the other hardware. */ x0 = ROUND_DOWN_TO(x0, 2 * x_align); y0 = ROUND_DOWN_TO(y0, 2 * y_align);