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isl/formats: Only advertise sampling for A4B4G4R4 on Broadwell

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This causes hangs on Broadwell if you try to render to it.  I have no
idea how we managed to not hit this earlier.

Tested-by: Mark Janes <mark.a.janes@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 4871930451)
This commit is contained in:
Jason Ekstrand 2017-01-27 12:31:40 -08:00 • committed by Emil Velikov
parent cf94d126b6
commit 01044bf446
1 changed files with 3 additions and 2 deletions
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5
src/intel/isl/isl_format.c
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@ -218,9 +218,10 @@ static const struct surface_format_info format_info[] = {
SF(50, 50, x, x, x, x, x, x, x, x, P8A8_UNORM_PALETTE1)
SF( x, x, x, x, x, x, x, x, x, x, A1B5G5R5_UNORM)
/* According to the PRM, A4B4G4R4_UNORM isn't supported until Sky Lake
* but empirical testing indicates that it works just fine on Broadwell.
* but empirical testing indicates that at least sampling works just fine
* on Broadwell.
*/
SF(80, 80, x, x, 80, x, x, x, x, x, A4B4G4R4_UNORM)
SF(80, 80, x, x, 90, x, x, x, x, x, A4B4G4R4_UNORM)
SF(90, x, x, x, x, x, x, x, x, x, L8A8_UINT)
SF(90, x, x, x, x, x, x, x, x, x, L8A8_SINT)
SF( Y, Y, x, 45, Y, Y, Y, x, x, x, R8_UNORM)