011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From 5c0d836a77af123123d7a4144d5069c2d675a23d Mon Sep 17 00:00:00 2001
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From: Eric Anholt <eric@anholt.net>
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Date: Tue, 30 Aug 2016 13:57:38 -0700
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Subject: [PATCH] drm/vc4: Allow some more signals to be packed with uniform
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resets.
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The intent was to make sure people don't sneak in a small immediate or
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something to change the interpretation of the uniform update args, but
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these signals are just fine.
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Fixes a validation failure in the current X server on some Render
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operation.
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Signed-off-by: Eric Anholt <eric@anholt.net>
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(cherry picked from commit 313a61d30761217ce4383018de1cc0d5d503a376)
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---
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drivers/gpu/drm/vc4/vc4_validate_shaders.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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--- a/drivers/gpu/drm/vc4/vc4_validate_shaders.c
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+++ b/drivers/gpu/drm/vc4/vc4_validate_shaders.c
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@@ -309,8 +309,14 @@ validate_uniform_address_write(struct vc
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* of uniforms on each side. However, this scheme is easy to
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* validate so it's all we allow for now.
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*/
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-
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- if (QPU_GET_FIELD(inst, QPU_SIG) != QPU_SIG_NONE) {
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+ switch (QPU_GET_FIELD(inst, QPU_SIG)) {
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+ case QPU_SIG_NONE:
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+ case QPU_SIG_SCOREBOARD_UNLOCK:
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+ case QPU_SIG_COLOR_LOAD:
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+ case QPU_SIG_LOAD_TMU0:
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+ case QPU_SIG_LOAD_TMU1:
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+ break;
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+ default:
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DRM_ERROR("uniforms address change must be "
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"normal math\n");
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return false;
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