We observe that the OA architecture is clobbering random memory. Disable it until this can be resolved.
References: https://bugs.freedesktop.org/show_bug.cgi?id=106379 Signed-off-by: Chris Wilson chris@chris-wilson.co.uk Cc: Lionel Landwerlin lionel.g.landwerlin@intel.com Cc: Matthew Auld matthew.auld@intel.com Cc: Joonas Lahtinen joonas.lahtinen@linux.intel.com Cc: Rodrigo Vivi rodrigo.vivi@intel.com Cc: Jani Nikula jani.nikula@intel.com Cc: stable@vger.kernel.org --- drivers/gpu/drm/i915/i915_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 019bd2d073ad..20187f3bf350 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -3425,7 +3425,7 @@ static struct ctl_table dev_root[] = { */ void i915_perf_init(struct drm_i915_private *dev_priv) { - if (IS_HASWELL(dev_priv)) { + if (IS_HASWELL(dev_priv) && 0) { dev_priv->perf.oa.ops.is_valid_b_counter_reg = gen7_is_valid_b_counter_addr; dev_priv->perf.oa.ops.is_valid_mux_reg =