This forces a complete modeset if vrr drm crtc state goes
from enabled to disabled and vice versa.
This patch also computes vrr state variables from the mode timings
and based on the vrr property set by userspace as well as hardware's
vrr capability.
v2:
*Rebase
v3:
* Vmin = max (vtotal, vmin) (Manasi)
v4:
* set crtc_state->vrr.enable = 0 for disable request
v5:
* drm_dbg_kms, squash crtc states def patch (Jani N)
v6:
* Move vrr modeset check to separate function (Jani N)
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 7 +++
.../drm/i915/display/intel_display_types.h | 7 +++
drivers/gpu/drm/i915/display/intel_dp.c | 1 +
drivers/gpu/drm/i915/display/intel_vrr.c | 51 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_vrr.h | 7 +++
5 files changed, 73 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 6e5b93f6a25e..fa452eb3adb8 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -57,6 +57,7 @@
#include "display/intel_sdvo.h"
#include "display/intel_tv.h"
#include "display/intel_vdsc.h"
+#include "display/intel_vrr.h"
#include "gt/intel_rps.h"
@@ -14383,6 +14384,10 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(mst_master_transcoder);
+ PIPE_CONF_CHECK_BOOL(vrr.enable);
+ PIPE_CONF_CHECK_I(vrr.vtotalmin);
+ PIPE_CONF_CHECK_I(vrr.vtotalmax);
+
#undef PIPE_CONF_CHECK_X
#undef PIPE_CONF_CHECK_I
#undef PIPE_CONF_CHECK_BOOL
@@ -15509,6 +15514,8 @@ static int intel_atomic_check(struct drm_device *dev,
new_crtc_state->uapi.mode_changed = true;
}
+ intel_vrr_check_modeset(state);
+
ret = drm_atomic_helper_check_modeset(dev, &state->base);
if (ret)
goto fail;
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 1fa0246b3a82..f5fb5f109a89 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1124,6 +1124,13 @@ struct intel_crtc_state {
struct intel_dsb *dsb;
u32 psr2_man_track_ctl;
+
+ /* Variable Refresh Rate state */
+ struct {
+ bool enable;
+ u16 vtotalmin;
+ u16 vtotalmax;
+ } vrr;
};
enum intel_pipe_crc_source {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 6729e6290132..b5abde0351c2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2860,6 +2860,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
if (!HAS_DDI(dev_priv))
intel_dp_set_clock(encoder, pipe_config);
+ intel_vrr_compute_config(intel_dp, pipe_config);
intel_psr_compute_config(intel_dp, pipe_config);
intel_dp_drrs_compute_config(intel_dp, pipe_config, output_bpp,
constant_n);
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index 869e41aa8396..09dcf6f1c4d9 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -30,3 +30,54 @@ bool intel_vrr_is_capable(struct drm_connector *connector)
info->monitor_range.max_vfreq - info->monitor_range.min_vfreq > 10;
}
+void
+intel_vrr_check_modeset(struct intel_atomic_state *state)
+{
+ int i;
+ struct intel_crtc_state *old_crtc_state, *new_crtc_state;
+ struct intel_crtc *crtc;
+
+ for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
+ new_crtc_state, i) {
+ if (new_crtc_state->uapi.vrr_enabled !=
+ old_crtc_state->uapi.vrr_enabled)
+ new_crtc_state->uapi.mode_changed = true;
+ }
+}
+
+void
+intel_vrr_compute_config(struct intel_dp *intel_dp,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+ struct intel_connector *intel_connector = intel_dp->attached_connector;
+ struct drm_connector *connector = &intel_connector->base;
+ struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
+ const struct drm_display_info *info = &connector->display_info;
+
+ if (!intel_vrr_is_capable(connector))
+ return;
+
+ if (!crtc_state->uapi.vrr_enabled) {
+ crtc_state->vrr.enable = false;
+ return;
+ }
+
+ crtc_state->vrr.enable = true;
+ crtc_state->vrr.vtotalmin =
+ max_t(u16, adjusted_mode->crtc_vtotal,
+ DIV_ROUND_CLOSEST(adjusted_mode->crtc_clock * 1000,
+ adjusted_mode->crtc_htotal *
+ info->monitor_range.max_vfreq));
+ crtc_state->vrr.vtotalmax =
+ max_t(u16, adjusted_mode->crtc_vtotal,
+ DIV_ROUND_UP(adjusted_mode->crtc_clock * 1000,
+ adjusted_mode->crtc_htotal *
+ info->monitor_range.min_vfreq));
+
+ drm_dbg_kms(&i915->drm,
+ "VRR Config: Enable = %s Vtotal Min = %d Vtotal Max = %d\n",
+ yesno(crtc_state->vrr.enable), crtc_state->vrr.vtotalmin,
+ crtc_state->vrr.vtotalmax);
+}
+
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.h b/drivers/gpu/drm/i915/display/intel_vrr.h
index 3700acec5d09..3f08c32d1afe 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.h
+++ b/drivers/gpu/drm/i915/display/intel_vrr.h
@@ -9,7 +9,14 @@
#include <linux/types.h>
struct drm_connector;
+struct intel_atomic_state;
+struct intel_crtc;
+struct intel_crtc_state;
+struct intel_dp;
bool intel_vrr_is_capable(struct drm_connector *connector);
+void intel_vrr_check_modeset(struct intel_atomic_state *state);
+void intel_vrr_compute_config(struct intel_dp *intel_dp,
+ struct intel_crtc_state *crtc_state);
#endif /* __INTEL_VRR_H__ */
--
2.19.1
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