From: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@xxxxxxxxx>
Add support to load DMC on MTL.
According to the spec and based on tests done on real hardware, 0x7000
is a reasonable size limit that covers each possible payload.
v2:
- Tighten payload size limit. (Matt, Rodrigo)
- Use a better name for the defined payload limit. (Rodrigo)
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@xxxxxxxxx>
Signed-off-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_dmc.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 6b162f77340e..d84cf9237b9c 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -89,10 +89,13 @@ static struct intel_dmc *i915_to_dmc(struct drm_i915_private *i915)
__stringify(major) "_" \
__stringify(minor) ".bin"
+#define XELPDP_DMC_MAX_FW_SIZE 0x7000
#define DISPLAY_VER13_DMC_MAX_FW_SIZE 0x20000
-
#define DISPLAY_VER12_DMC_MAX_FW_SIZE ICL_DMC_MAX_FW_SIZE
+#define MTL_DMC_PATH DMC_PATH(mtl)
+MODULE_FIRMWARE(MTL_DMC_PATH);
+
#define DG2_DMC_PATH DMC_LEGACY_PATH(dg2, 2, 08)
MODULE_FIRMWARE(DG2_DMC_PATH);
@@ -979,7 +982,10 @@ void intel_dmc_init(struct drm_i915_private *i915)
INIT_WORK(&dmc->work, dmc_load_work_fn);
- if (IS_DG2(i915)) {
+ if (IS_METEORLAKE(i915)) {
+ dmc->fw_path = MTL_DMC_PATH;
+ dmc->max_fw_size = XELPDP_DMC_MAX_FW_SIZE;
+ } else if (IS_DG2(i915)) {
dmc->fw_path = DG2_DMC_PATH;
dmc->max_fw_size = DISPLAY_VER13_DMC_MAX_FW_SIZE;
} else if (IS_ALDERLAKE_P(i915)) {
--
2.39.2
