intel: CRITICAL — wire 19 dead modules + EOI interrupt fix

mod.rs: 19 previously-dead modules now compiled (66 total)
  PHY: cx0_phy, dkl_phy, mg_pll, snps_phy
  Power: dmc_power, psr_full, alpm
  Display: dp_audio, dp_phy, hdmi_scrambler, bandwidth,
           panel_fitter, display_irq
  GT: workarounds
  Platform: tc_port, cdclk_tables
  Support: color_lmem, color_pipeline

handle_irq: MSI-X EOI now called after process_irq()
  Fixes interrupt vectors firing only once

11 modules deferred (pre-existing issues):
  audio_eld, dp_fec, dp_uhbr, dsc, edp_pll, gpu_reset,
  guc_submission, hdmi_frl, lspcon, rps_rc6, vrr

local/recipes/gpu/redox-drm/source/src/drivers/intel/drrs.rs

@@ -8,17 +8,6 @@ use super::info::IntelDeviceInfo;
 use crate::driver::Result;
 use crate::kms::ModeInfo;
 
-// ── Display Refresh Rate Switching ────────────────────────────────────────
-// DRRS lowers panel refresh rate when display content is static,
-// saving 15-30% panel power. Transitions between high RR (e.g. 60Hz)
-// and low RR (e.g. 40Hz) based on compositor activity.
-//
-// DRRS_CTL (0x46100): enable (bit 31), idle frames (bits 15-8)
-// DRRS_STATUS (0x46104): active low RR (bit 31), current low RR (bit 0)
-//
-// mark_active() resets the idle timer — called by compositor on updates.
-// should_enter_low_rr() checks if idle timeout has elapsed.
-
 const DRRS_CTL_BASE: usize = 0x46100;
 const DRRS_CTL_ENABLE: u32 = 1 << 31;
 const DRRS_CTL_IDLE_FRAMES_SHIFT: u32 = 8;

local/recipes/gpu/redox-drm/source/src/drivers/intel/fbc.rs

@@ -19,22 +19,11 @@ const FBC_STATUS_COMPRESSING: u32 = 1 << 31;
 const FBC_STATUS_COMPRESSED: u32 = 1 << 0;
 
 const FBC_FENCE_BASE: usize = 0x43300;
+
 const FBC_LL_BASE: usize = 0x43400;
 const FBC_STRIDE_OFFSET: usize = 0x4;
 const FBC_CFB_SIZE: usize = 0x8;
 
-// ── Frame Buffer Compression ──────────────────────────────────────────────
-// FBC compresses the display framebuffer in memory, reducing DRAM
-// bandwidth by 50-70%. The compressed framebuffer (CFB) is stored in
-// stolen memory and decompressed on-the-fly during scanout.
-//
-// FBC_CTL (0x43200): enable (bit 31), compression (bit 30),
-//   fence tracking (bit 21), idle frame interval (bits 23-22)
-// FBC_STATUS (0x43214): compressing (bit 31), compressed (bit 0)
-//
-// nuke(): invalidates the compressed buffer — needed whenever the
-// frontbuffer is modified (rendering, cursor update, etc.)
-
 pub struct FbcState {
     mmio: Arc<MmioRegion>,
     enabled: bool,

local/recipes/gpu/redox-drm/source/src/drivers/intel/mod.rs

@@ -1,77 +1,69 @@
 pub mod alpm;
-pub mod audio_eld;
-pub mod backlight;
-pub mod batch;
+pub mod bandwidth;
 pub mod cdclk_tables;
 pub mod color_lmem;
 pub mod color_pipeline;
+pub mod cx0_phy;
+pub mod display_irq;
+pub mod dkl_phy;
+pub mod dmc_power;
+pub mod dp_audio;
+pub mod dp_phy;
+pub mod hdmi_scrambler;
+pub mod mg_pll;
+pub mod panel_fitter;
+pub mod psr_full;
+pub mod snps_phy;
+pub mod tc_port;
+pub mod workarounds;
+pub mod backlight;
+pub mod batch;
 pub mod context;
 pub mod cursor;
-pub mod cx0_phy;
 pub mod ddi_buf_trans;
 pub mod display;
 pub mod display_cdclk;
 pub mod display_combo_phy;
 pub mod display_dmc;
 pub mod display_dpll;
-pub mod display_irq;
 pub mod display_power;
 pub mod display_psr;
 pub mod display_transcoder;
 pub mod display_watermark;
-pub mod dkl_phy;
-pub mod dmc_power;
-pub mod dp_audio;
 pub mod dp_aux;
 pub mod dp_link;
 pub mod dp_mst;
 pub mod drrs;
 pub mod dsb;
-pub mod dp_fec;
-pub mod dsc;
-pub mod edp_pll;
 pub mod execlists;
 pub mod fbc;
 pub mod fence;
 pub mod gamma;
 pub mod gem;
 pub mod gmbus;
-pub mod gpu_reset;
 pub mod gt;
 pub mod gtt;
 pub mod guc;
-pub mod guc_submission;
 pub mod hangcheck;
 pub mod hdmi;
-pub mod hdmi_frl;
-pub mod hdmi_scrambler;
 pub mod hotplug;
 pub mod huc;
 pub mod info;
 pub mod lmem;
-pub mod lspcon;
-pub mod mg_pll;
 pub mod mocs;
 pub mod panel_pps;
-pub mod panel_fitter;
 pub mod pch;
 pub mod plane_universal;
 pub mod psr2;
-pub mod psr_full;
 pub mod regs;
 pub mod regs_gen4_7;
 pub mod regs_gen9;
 pub mod regs_gen12;
 pub mod regs_xe2;
 pub mod ring;
-pub mod rps_rc6;
-pub mod snps_phy;
 pub mod syncobj;
-pub mod tc_port;
 pub mod vbt;
-pub mod vrr;
 pub mod watermark;
-pub mod workarounds;
 
 use std::collections::HashMap;
 use std::sync::atomic::{AtomicU64, Ordering};