From 7cb8468bbede8cac0d9ed69b2549788ecaa6b558 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 11 Sep 2019 13:57:17 +0100 Subject: drm/i915/tgl: Disable read-only ppgtt support The same read-only affliction as befell Icelake is affecting Tigerlake. Disable the read-only support as clearly it was not fixed. Testcase: igt/i915_selftests/live_gem_context References: 3936867dbc1e ("drm/i915: Disable read only ppgtt support for gen11") Signed-off-by: Chris Wilson Cc: Mika Kuoppala Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20190911125717.28997-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_gem_gtt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.c') diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index e4f66bfe74c2..a09a9b62afbe 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1486,8 +1486,10 @@ static struct i915_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915) * * Gen11 has HSDES#:1807136187 unresolved. Disable ro support * for now. + * + * Gen12 has inherited the same read-only fault issue from gen11. */ - ppgtt->vm.has_read_only = INTEL_GEN(i915) != 11; + ppgtt->vm.has_read_only = !IS_GEN_RANGE(i915, 11, 12); /* There are only few exceptions for gen >=6. chv and bxt. * And we are not sure about the latter so play safe for now. -- cgit v1.2.3-59-g8ed1b