From 6d7a793aabf31d7ba2b16fc13a94ccf0b90e4be0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= Date: Fri, 14 May 2021 16:22:45 -0700 Subject: [PATCH] drm/i915/display: Allow fastsets when DP_SDP_VSC infoframe do not match with PSR enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When PSR is enabled it handles DP_SDP_VSC, changing revision and all the other fields as necessary. It can also enabled and disable this SDP as needed without a full modeset. So here masking DP_SDP_VSC bit when previous and future state PSR enabled, it will still be checked when comparing the asked state to what was programmed to hardware. Cc: Gwan-gyeong Mun Cc: Radhakrishna Sripada Reported-by: Ville Syrjälä Fixes: 78b772e1a01f ("drm/i915/display: Fill PSR state during hardware configuration read out") Signed-off-by: José Roberto de Souza Reviewed-by: Gwan-gyeong Mun Link: https://patchwork.freedesktop.org/patch/msgid/20210514232247.144542-2-jose.souza@intel.com --- drivers/gpu/drm/i915/display/intel_display.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 09d83d6dc0e9..c8e8422359b3 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -8315,6 +8315,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, } \ } while (0) +#define PIPE_CONF_CHECK_X_WITH_MASK(name, mask) do { \ + if ((current_config->name & (mask)) != (pipe_config->name & (mask))) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected 0x%08x, found 0x%08x)", \ + current_config->name & (mask), \ + pipe_config->name & (mask)); \ + ret = false; \ + } \ +} while (0) + #define PIPE_CONF_CHECK_I(name) do { \ if (current_config->name != pipe_config->name) { \ pipe_config_mismatch(fastset, crtc, __stringify(name), \ @@ -8661,7 +8671,12 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config, PIPE_CONF_CHECK_I(min_voltage_level); } - PIPE_CONF_CHECK_X(infoframes.enable); + if (fastset && (current_config->has_psr || pipe_config->has_psr)) + PIPE_CONF_CHECK_X_WITH_MASK(infoframes.enable, + ~intel_hdmi_infoframe_enable(DP_SDP_VSC)); + else + PIPE_CONF_CHECK_X(infoframes.enable); + PIPE_CONF_CHECK_X(infoframes.gcp); PIPE_CONF_CHECK_INFOFRAME(avi); PIPE_CONF_CHECK_INFOFRAME(spd);