Quoting Lionel Landwerlin (2019-06-27 10:01:14)
> When a register is readonly there is not much we can tell about its
> value (apart from its default value?). This can be covered by tests
> exercising the value of the register from userspace.
>
> For PS_INVOCATION_COUNT we've got the following piglit tests :
>
> KHR-GL45.pipeline_statistics_query_tests_ARB.functional_fragment_shader_invocations
>
> Vulkan CTS tests :
>
> dEQP-VK.query_pool.statistics_query.fragment_shader_invocations.*
>
> Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/selftest_workarounds.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
> index f12cb20fe785..a06f96df1bfd 100644
> --- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
> @@ -926,6 +926,9 @@ check_whitelisted_registers(struct intel_engine_cs *engine,
>
> err = 0;
> for (i = 0; i < engine->whitelist.count; i++) {
> + if (engine->whitelist.list[i].reg.reg & RING_FORCE_TO_NONPRIV_RD)
Ville would like you to use
i915_mmio_reg_offset(engine->whitelist.list[i].reg)
I think we might benefit from a reg local :)
-Chris
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