drm/i915/xe2lpd: Load DMC

Load DMC for Xe2LPD. The value 0x8000 is the maximum payload size for
any Xe2LPD DMC firmware.

v2:
  - s/XE2LPD_MAX_FW_SIZE/XE2LPD_DMC_MAX_FW_SIZE/. (Lucas)

Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Signed-off-by: Dnyaneshwar Bhadane <dnyaneshwar.bhadane@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240312163639.172321-8-gustavo.sousa@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index 835781624482918bd5a044b2666f01287f6356e7..3fa851b5c7a6b52a0dca0eb24c0ef3675c5d8a8f 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -89,10 +89,14 @@ static struct intel_dmc *i915_to_dmc(struct drm_i915_private *i915)
        __stringify(major) "_"                  \
        __stringify(minor) ".bin"
 
+#define XE2LPD_DMC_MAX_FW_SIZE         0x8000
 #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 XE2LPD_DMC_PATH                        DMC_PATH(xe2lpd)
+MODULE_FIRMWARE(XE2LPD_DMC_PATH);
+
 #define MTL_DMC_PATH                   DMC_PATH(mtl)
 MODULE_FIRMWARE(MTL_DMC_PATH);
 
@@ -987,7 +991,10 @@ void intel_dmc_init(struct drm_i915_private *i915)
 
        INIT_WORK(&dmc->work, dmc_load_work_fn);
 
-       if (DISPLAY_VER_FULL(i915) == IP_VER(14, 0)) {
+       if (DISPLAY_VER_FULL(i915) == IP_VER(20, 0)) {
+               dmc->fw_path = XE2LPD_DMC_PATH;
+               dmc->max_fw_size = XE2LPD_DMC_MAX_FW_SIZE;
+       } else if (DISPLAY_VER_FULL(i915) == IP_VER(14, 0)) {
                dmc->fw_path = MTL_DMC_PATH;
                dmc->max_fw_size = XELPDP_DMC_MAX_FW_SIZE;
        } else if (IS_DG2(i915)) {