We need to make sure that the panel supports replay.
This info is inside the amd vsdb (vendor specific data block). Create a
function to parse the block and read the replay_mode bit.
Signed-off-by: Bhawanpreet Lakha <bhawanpreet.la...@amd.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 37 +++++++++++++++++++
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 14 +++++++
.../amd/display/amdgpu_dm/amdgpu_dm_replay.c | 11 +++---
3 files changed, 57 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index a6551c049cc1..d74d5ba39d92 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -10546,6 +10546,41 @@ static bool parse_edid_cea(struct amdgpu_dm_connector
*aconnector,
return ret;
}
+static int parse_amd_vsdb(struct amdgpu_dm_connector *aconnector,
+ struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
+{
+ u8 *edid_ext = NULL;
+ int i;
+ int j = 0;
+
+ if (edid == NULL || edid->extensions == 0)
+ return -ENODEV;
+
+ /* Find DisplayID extension */
+ for (i = 0; i < edid->extensions; i++) {
+ edid_ext = (void *)(edid + (i + 1));
+ if (edid_ext[0] == DISPLAYID_EXT)
+ break;
+ }
+
+ while (j < EDID_LENGTH) {
+
+ struct amd_vsdb_block *amd_vsdb = (struct amd_vsdb_block
*)&edid_ext[j];
+ unsigned int ieeeId = (amd_vsdb->ieee_id[2] << 16) |
(amd_vsdb->ieee_id[1] << 8) | (amd_vsdb->ieee_id[0]);
+
+ if (ieeeId ==
HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_IEEE_REGISTRATION_ID &&
+ amd_vsdb->version ==
HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3) {
+ vsdb_info->replay_mode = (amd_vsdb->feature_caps &
AMD_VSDB_VERSION_3_FEATURECAP_REPLAYMODE) ? true : false;
+ DRM_DEBUG_KMS("Panel supports Replay Mode: %d\n",
vsdb_info->replay_mode);
+
+ return true;
+ }
+ j++;
+ }
+
+ return false;
+}
+
static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
struct edid *edid, struct amdgpu_hdmi_vsdb_info *vsdb_info)
{
@@ -10681,6 +10716,8 @@ void amdgpu_dm_update_freesync_caps(struct
drm_connector *connector,
freesync_capable = true;
}
}
+ parse_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
+
} else if (edid && sink->sink_signal == SIGNAL_TYPE_HDMI_TYPE_A) {
i = parse_hdmi_amd_vsdb(amdgpu_dm_connector, edid, &vsdb_info);
if (i >= 0 && vsdb_info.freesync_supported) {
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index 4561f55afa99..5c9cf6c147d7 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -51,6 +51,9 @@
#define AMDGPU_DMUB_NOTIFICATION_MAX 5
+#define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_IEEE_REGISTRATION_ID 0x00001A
+#define AMD_VSDB_VERSION_3_FEATURECAP_REPLAYMODE 0x40
+#define HDMI_AMD_VENDOR_SPECIFIC_DATA_BLOCK_VERSION_3 0x3
/*
#include "include/amdgpu_dal_power_if.h"
#include "amdgpu_dm_irq.h"
@@ -75,6 +78,12 @@ struct dmub_srv;
struct dc_plane_state;
struct dmub_notification;
+struct amd_vsdb_block {
+ unsigned char ieee_id[3];
+ unsigned char version;
+ unsigned char feature_caps;
+};
+
struct common_irq_params {
struct amdgpu_device *adev;
enum dc_irq_source irq_src;
@@ -604,6 +613,11 @@ struct amdgpu_hdmi_vsdb_info {
* @max_refresh_rate_hz: FreeSync Maximum Refresh Rate in Hz
*/
unsigned int max_refresh_rate_hz;
+
+ /**
+ * @replay mode: Replay supported
+ */
+ bool replay_mode;
};
struct amdgpu_dm_connector {
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
index 7690ab6125a1..f82575e09848 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_replay.c
@@ -46,11 +46,8 @@ static bool link_supports_replay(struct dc_link *link,
struct amdgpu_dm_connecto
if (!state->freesync_capable)
return false;
- //TODO VSDB replay check
- /* i = parse_amd_vsdb(aconnector, edid, &vsdb_info); */
-
- /* if(!vsdb_info.replay_mode) */
- /* return false; */
+ if (!aconnector->vsdb_info.replay_mode)
+ return false;
// Check the eDP version
if (dpcd_caps->edp_rev < EDP_REVISION_13)
@@ -77,6 +74,10 @@ bool amdgpu_dm_setup_replay(struct dc_link *link, struct
amdgpu_dm_connector *ac
struct replay_config pr_config;
union replay_debug_flags *debug_flags = NULL;
+ // For eDP, if Replay is supported, return true to skip checks
+ if (link->replay_settings.config.replay_supported)
+ return true;
+
if (!dc_is_embedded_signal(link->connector_signal))
return false;
--
2.25.1
