From 618cf883becd756d519488db6b21ab7a60ce7f7c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Thu, 7 Mar 2019 16:00:47 -0800 Subject: drm/i915: Disable PSR2 while getting pipe CRC MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When PSR2 is active aka after the number of frames programmed in PSR2_CTL 'Frames Before SU Entry' hardware stops to generate CRC interrupts causing IGT tests to fail due timeout. This same behavior don't happen with PSR1, as soon as pipe CRC is enabled it blocks PSR1 activation so CRC calculation continues to happens normaly. This patch also set mode_changed as true when PSR is available to force atomic check functions to compute new PSR state, otherwise PSR2 would not be disabled. v4: Only setting mode_changed if has_psr is set(Dhinakaran) v3: Reusing intel_crtc_crc_prepare() and crc_enabled, only setting mode_changed if it can do PSR. v2: Changed commit description to describe that PSR2 inhibit CRC calculations. Cc: Ville Syrjälä Reviewed-by: Dhinakaran Pandiyan Reviewed-by: Rodrigo Vivi Signed-off-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20190308000050.6226-6-jose.souza@intel.com --- drivers/gpu/drm/i915/intel_pipe_crc.c | 1 + drivers/gpu/drm/i915/intel_psr.c | 5 +++++ 2 files changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_pipe_crc.c b/drivers/gpu/drm/i915/intel_pipe_crc.c index d9ecab8c5c63..64a98712d61f 100644 --- a/drivers/gpu/drm/i915/intel_pipe_crc.c +++ b/drivers/gpu/drm/i915/intel_pipe_crc.c @@ -306,6 +306,7 @@ retry: goto put_state; } + pipe_config->base.mode_changed = pipe_config->has_psr; pipe_config->crc_enabled = enable; if (IS_HASWELL(dev_priv) && crtc->pipe == PIPE_A) { diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 2d9f64c362e2..25a0a77268a9 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -572,6 +572,11 @@ static bool intel_psr2_config_valid(struct intel_dp *intel_dp, return false; } + if (crtc_state->crc_enabled) { + DRM_DEBUG_KMS("PSR2 not enabled because it would inhibit pipe CRC calculation\n"); + return false; + } + return true; } -- cgit v1.2.1