From: Madhumitha Tolakanahalli Pradeep Date: Tue, 7 Mar 2023 19:51:11 +0000 (-0300) Subject: drm/i915/dmc: Load DMC on MTL X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2b897eb4f5993a221dcd8e4f29fda3046669ed59;p=linux.git drm/i915/dmc: Load DMC on MTL 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 Signed-off-by: Gustavo Sousa Cc: Rodrigo Vivi Cc: Matt Roper Cc: Anusha Srivatsa Reviewed-by: Matt Roper Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20230307195111.90767-1-gustavo.sousa@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c index ae247495d9a2e..8a88de67ff0a9 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); @@ -995,7 +998,10 @@ 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)) {