Move split_irqchip_common to devices/.

Previously, code in devices/ couldn't use split_irqchip_common, since
x86_64/ already has a dependency on devices/.

TEST=Built.
BUG=chromium:908689

Change-Id: I481514ae6bbd68e47feecc6f364ca8f4fd798e67
Reviewed-on: https://chromium-review.googlesource.com/1526762
Commit-Ready: Miriam Zimmerman <mutexlox@chromium.org>
Tested-by: Miriam Zimmerman <mutexlox@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>

3 files changed, 0 insertions, 80 deletions

diff --git a/x86_64/Cargo.toml b/x86_64/Cargo.toml
index 47a281c..521573b 100644
--- a/x86_64/Cargo.toml
+++ b/x86_64/Cargo.toml
@@ -6,7 +6,6 @@ build = "build.rs"
 
 [dependencies]
 arch = { path = "../arch" }
-bit_field = { path = "../bit_field" }
 data_model = { path = "../data_model" }
 devices = { path = "../devices" }
 io_jail = { path = "../io_jail" }
diff --git a/x86_64/src/lib.rs b/x86_64/src/lib.rs
index 0f3c757..4ca7c2e 100644
--- a/x86_64/src/lib.rs
+++ b/x86_64/src/lib.rs
@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 extern crate arch;
-extern crate bit_field;
 extern crate byteorder;
 extern crate data_model;
 extern crate devices;
@@ -66,9 +65,7 @@ mod gdt;
 mod interrupts;
 mod mptable;
 mod regs;
-mod split_irqchip_common;
 
-pub use self::split_irqchip_common::*;
 use std::error::Error as StdError;
 use std::ffi::{CStr, CString};
 use std::fmt::{self, Display};
diff --git a/x86_64/src/split_irqchip_common.rs b/x86_64/src/split_irqchip_common.rs
deleted file mode 100644
index 6a722e2..0000000
--- a/x86_64/src/split_irqchip_common.rs
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2019 The Chromium OS Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Common constants and types used for Split IRQ chip devices (e.g. PIC, PIT, IOAPIC).
-
-use bit_field::*;
-
-#[bitfield]
-#[derive(Clone, Copy, Debug, PartialEq)]
-pub enum DestinationMode {
-    Physical = 0,
-    Logical = 1,
-}
-
-#[bitfield]
-#[derive(Clone, Copy, Debug, PartialEq)]
-pub enum TriggerMode {
-    Edge = 0,
-    Level = 1,
-}
-
-#[derive(Clone, Copy, PartialEq)]
-pub enum DeliveryMode {
-    DeliveryModeFixed = 0b000,
-    DeliveryModeLowest = 0b001,
-    DeliveryModeSMI = 0b010,        // System management interrupt
-    DeliveryModeRemoteRead = 0b011, // This is no longer supported by intel.
-    DeliveryModeNMI = 0b100,        // Non maskable interrupt
-    DeliveryModeInit = 0b101,
-    DeliveryModeStartup = 0b110,
-    DeliveryModeExternal = 0b111,
-}
-
-#[bitfield]
-#[derive(Clone, Copy, PartialEq)]
-pub struct MsiAddressMessageNonRemappable {
-    reserved: BitField2,
-    #[bits = 1]
-    destination_mode: DestinationMode,
-    redirection_hint: BitField1,
-    reserved_2: BitField8,
-    destination_id: BitField8,
-    // According to Intel's implementation of MSI, these bits must always be 0xfee.
-    always_0xfee: BitField12,
-}
-
-#[bitfield]
-#[derive(Clone, Copy, PartialEq)]
-pub struct MsiAddressMessageRemappable {
-    reserved: BitField2,
-    handle_hi: BitField1, // Bit 15 of handle
-    shv: BitField1,
-    interrupt_format: BitField1,
-    handle_low: BitField15, // Bits 0-14 of handle.
-    // According to Intel's implementation of MSI, these bits must always be 0xfee.
-    always_0xfee: BitField12,
-}
-
-#[derive(Clone, Copy, PartialEq)]
-pub enum MsiAddressMessage {
-    NonRemappable(MsiAddressMessageNonRemappable),
-    Remappable(MsiAddressMessageRemappable),
-}
-
-#[bitfield]
-#[derive(Clone, Copy, PartialEq)]
-struct MsiDataMessage {
-    vector: BitField8,
-    delivery_mode: BitField3,
-    reserved: BitField3,
-    level: BitField1,
-    #[bits = 1]
-    trigger: TriggerMode,
-    reserved2: BitField16,
-}