Add guarded J514M/T6034 native graphics bring-up

Documentation/devicetree/bindings/display/apple,dcp.yaml

@@ -17,6 +17,7 @@ description:
 properties:
   compatible:
     oneOf:
+      - const: apple,t6034-dcp
       - items:
           - enum:
               - apple,t8103-dcp
@@ -39,7 +40,7 @@ properties:
 
   reg:
     minItems: 2
-    maxItems: 7
+    maxItems: 8
 
   reg-names:
     minItems: 2
@@ -50,6 +51,7 @@ properties:
       - enum: [disp-2, iop-vbar]
       - enum: [disp-3, iop-vbar]
       - enum: [disp-4, iop-vbar]
+      - enum: [disp-5, iop-vbar]
       - const: iop-vbar
 
   mboxes:

Documentation/devicetree/bindings/display/apple,display-subsystem.yaml

@@ -18,6 +18,7 @@ properties:
     enum:
       - apple,display-subsystem
       - apple,t8122-display-subsystem
+      - apple,t6034-display-subsystem
 
   iommus:
     minItems: 1

Documentation/devicetree/bindings/soc/apple/apple,pmp.yaml

@@ -20,7 +20,9 @@ properties:
     oneOf:
       - const: apple,t6000-pmp-v2
       - items:
-          - const: apple,t8140-pmp-v2
+          - enum:
+              - apple,t8140-pmp-v2
+              - apple,t6034-pmp-v2
           - const: apple,t6000-pmp-v2
 
   reg:

arch/arm64/boot/dts/apple/t6034-dcp.dtsi

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * J514M/T6034 internal display. Fresh ADT metadata identifies the same
+ * DCP/DART/PMP register layout and 14.7 firmware images as T6031, with a
+ * 400 MHz disp0 clock. Keep a separate handoff and component compatible;
+ * every consumer remains disabled until the T6034 gate validates it.
+ */
+#include "t6031-dcp.dtsi"
+
+&clk_disp0 {
+	clock-frequency = <400000000>;
+};
+
+&display {
+	compatible = "apple,t6034-display-subsystem";
+};
+
+&dcp {
+	compatible = "apple,t6034-dcp";
+};
+
+&pmp {
+	compatible = "apple,t6034-pmp-v2", "apple,t6000-pmp-v2";
+};
+
+&pmp_report {
+	compatible = "apple,t6034-pmp-v2-report", "apple,t6020-pmp-v2-report";
+};

arch/arm64/boot/dts/apple/t6034-j514m.dts

@@ -10,6 +10,7 @@
 /dts-v1/;
 
 #include "t6034.dtsi"
+#include "t6034-dcp.dtsi"
 #include "t603x-j514-j516.dtsi"
 
 / {
@@ -29,6 +30,17 @@
 	brcm,board-type = "apple,texa";
 };
 
+/* J514 panel dimensions, as on the other 14-inch M3 MacBook Pros. */
+&dcp {
+	panel {
+		compatible = "apple,panel-j514", "apple,panel-mini-led", "apple,panel";
+		width-mm = <302>;
+		height-mm = <196>;
+		adj-height-mm = <189>;
+		apple,max-brightness = <500>;
+	};
+};
+
 &aop_audio {
 	apple,chassis-name = "J514";
 	apple,machine-kind = "MacBook Pro";

drivers/gpu/drm/apple/apple_drv.c

@@ -60,6 +60,7 @@ struct apple_drm_private {
 static DEFINE_MUTEX(apple_g15_display_lock);
 static struct device *apple_t6030_display;
 static struct device *apple_t6031_display;
+static struct device *apple_t6034_display;
 
 /* The publication slot of a G15 SoC's internal display subsystem, or NULL. */
 static struct device **apple_g15_display_slot(struct device *dev)
@@ -68,6 +69,8 @@ static struct device **apple_g15_display_slot(struct device *dev)
 		return &apple_t6030_display;
 	if (of_device_is_compatible(dev->of_node, "apple,t6031-display-subsystem"))
 		return &apple_t6031_display;
+	if (of_device_is_compatible(dev->of_node, "apple,t6034-display-subsystem"))
+		return &apple_t6034_display;
 	return NULL;
 }
 
@@ -134,6 +137,15 @@ int apple_drm_t6031_link_device(struct device *consumer)
 }
 EXPORT_SYMBOL_GPL(apple_drm_t6031_link_device);
 
+int apple_drm_t6034_link_device(struct device *consumer)
+{
+	if (!of_machine_is_compatible("apple,j514m"))
+		return -ENODEV;
+	return apple_g15_link_device(consumer, "apple,t6034", "apple,agx-t6034",
+				     &apple_t6034_display);
+}
+EXPORT_SYMBOL_GPL(apple_drm_t6034_link_device);
+
 DEFINE_DRM_GEM_DMA_FOPS(apple_fops);
 
 #define DART_PAGE_SIZE 16384
@@ -889,6 +901,7 @@ static const struct of_device_id apple_dcp_id_tbl[] = {
 	{ .compatible = "apple,t6030-dcp" },
 	{ .compatible = "apple,t8122-dcp" },
 	{ .compatible = "apple,t6031-dcp" },
+	{ .compatible = "apple,t6034-dcp" },
 	{},
 };
 
@@ -1237,6 +1250,7 @@ static const struct of_device_id of_match[] = {
 	{ .compatible = "apple,t6030-display-subsystem" },
 	{ .compatible = "apple,t8122-display-subsystem" },
 	{ .compatible = "apple,t6031-display-subsystem" },
+	{ .compatible = "apple,t6034-display-subsystem" },
 	{}
 };
 MODULE_DEVICE_TABLE(of, of_match);

drivers/gpu/drm/apple/dcp.c

@@ -5182,6 +5182,7 @@ static const struct of_device_id of_match[] = {
 	{ .compatible = "apple,t6030-dcpext", .data = &apple_dcp_hw_t6030_dcpext, },
 	{ .compatible = "apple,t8122-dcp", .data = &apple_dcp_hw_t8122, },
 	{ .compatible = "apple,t6031-dcp", .data = &apple_dcp_hw_t6031, },
+	{ .compatible = "apple,t6034-dcp", .data = &apple_dcp_hw_t6031, },
 	{ .compatible = "apple,t8122-dcpext", .data = &apple_dcp_hw_t8122_dcpext, },
 	{ .compatible = "apple,dcp",       .data = &apple_dcp_hw_dcp,    },
 	{ .compatible = "apple,dcpext",    .data = &apple_dcp_hw_dcpext, },

drivers/gpu/drm/apple/iomfb_v14_7.c

@@ -190,12 +190,26 @@ static const struct dcp_v14_board dcp_v14_board_j514c = {
 	.log_bringup = true,
 };
 
+/* J514M's 14.7 DCP image and panel geometry; the root SoC is required too. */
+static const struct dcp_v14_board dcp_v14_board_j514m = {
+	.name = "J514M",
+	.debugfs = "dcp-j514m",
+	.dcp_compatible = "apple,t6034-dcp",
+	.machine = "apple,j514m",
+	.soc = "apple,t6034",
+	.firmware_uuid = DCP_V14_J516C_FIRMWARE_UUID,
+	.handoff = "apple,t6034-handoff",
+	.promotion = true,
+	.log_bringup = true,
+};
+
 static const struct dcp_v14_board *const dcp_v14_boards[] = {
 	&dcp_v14_board_t6030,
 	&dcp_v14_board_j613,
 	&dcp_v14_board_j615,
 	&dcp_v14_board_j516c,
 	&dcp_v14_board_j514c,
+	&dcp_v14_board_j514m,
 };
 
 struct dcp_v14_property {
@@ -1655,7 +1669,8 @@ const struct dcp_v14_board *dcp_v14_board_select(dcp_v14_compat_fn dcp_is,
 		if (!dcp_is(ctx, board->dcp_compatible))
 			continue;
 		*dcp_known = true;
-		if (board->machine && !machine_is(ctx, board->machine))
+		if ((board->machine && !machine_is(ctx, board->machine)) ||
+		    (board->soc && !machine_is(ctx, board->soc)))
 			continue;
 		return board;
 	}

drivers/gpu/drm/apple/iomfb_v14_7_board.h

@@ -19,6 +19,8 @@ struct dcp_v14_board {
 	const char *dcp_compatible;
 	/* The machine compatible; NULL for any machine with this DCP. */
 	const char *machine;
+	/* Optional additional root SoC restriction. */
+	const char *soc;
 	/* The firmware image whose layouts were tested on this board. */
 	const char *firmware_uuid;
 	/* Set to <1> by the boot loader on the DCP, display and PIODMA nodes. */

drivers/gpu/drm/apple/v14-board-test.c

@@ -51,6 +51,8 @@ static const struct dcp_v14_board *board_for(const char *dcp, const char *const
 
 static const char *const j516c[] = { "apple,j516c", "apple,t6031", "apple,arm-platform", NULL };
 static const char *const j514c[] = { "apple,j514c", "apple,t6031", "apple,arm-platform", NULL };
+static const char *const j514m[] = { "apple,j514m", "apple,t6034", "apple,arm-platform", NULL };
+static const char *const j514m_wrong_soc[] = { "apple,j514m", "apple,t6031", NULL };
 static const char *const j516m[] = { "apple,j516m", "apple,t6034", "apple,arm-platform", NULL };
 static const char *const j516s[] = { "apple,j516s", "apple,t6030", "apple,arm-platform", NULL };
 static const char *const j613[] = { "apple,j613", "apple,t8122", "apple,arm-platform", NULL };
@@ -108,6 +110,25 @@ static void v14_board_j514c(struct kunit *test)
 	KUNIT_EXPECT_PTR_NE(test, b, board_for("apple,t6031-dcp", j516c, &known));
 }
 
+static void v14_board_j514m(struct kunit *test)
+{
+	const struct dcp_v14_board *b;
+	bool known;
+
+	b = board_for("apple,t6034-dcp", j514m, &known);
+	KUNIT_ASSERT_NOT_NULL(test, b);
+	KUNIT_EXPECT_TRUE(test, known);
+	KUNIT_EXPECT_STREQ(test, b->machine, "apple,j514m");
+	KUNIT_EXPECT_STREQ(test, b->soc, "apple,t6034");
+	KUNIT_EXPECT_STREQ(test, b->handoff, "apple,t6034-handoff");
+	KUNIT_EXPECT_TRUE(test, dcp_v14_board_admits(b, J516C_DCP_IMAGE));
+	KUNIT_EXPECT_FALSE(test, dcp_v14_board_admits(b, T6030_DCP_IMAGE));
+	KUNIT_EXPECT_FALSE(test, b->panel_nits);
+	KUNIT_EXPECT_NULL(test, board_for("apple,t6034-dcp", j514m_wrong_soc, &known));
+	KUNIT_EXPECT_NULL(test, board_for("apple,t6034-dcp", j516m, &known));
+	KUNIT_EXPECT_NULL(test, board_for("apple,t6031-dcp", j514m, &known));
+}
+
 /* A T6031 DCP on a T6034 has no record: refused. */
 static void v14_board_t6031_other_boards(struct kunit *test)
 {
@@ -255,6 +276,7 @@ static void v14_swap_timestamps_encoding(struct kunit *test)
 static struct kunit_case v14_board_cases[] = {
 	KUNIT_CASE(v14_board_j516c),
 	KUNIT_CASE(v14_board_j514c),
+	KUNIT_CASE(v14_board_j514m),
 	KUNIT_CASE(v14_board_t6031_other_boards),
 	KUNIT_CASE(v14_board_j516c_image),
 	KUNIT_CASE(v14_board_unchanged),

drivers/gpu/drm/asahi/g15/board.rs

@@ -158,6 +158,7 @@ pub(crate) fn hardware_record(
         };
     }
     let inputs = record::Inputs {
+        chip_id: cfg.chip_id,
         props,
         zones: &zones,
         main: &main,

drivers/gpu/drm/asahi/g15/board/record.rs

@@ -183,6 +183,8 @@ pub(crate) struct IoSlot {
 
 /// Everything the record is built from.
 pub(crate) struct Inputs<'a> {
+    /// SoC identity of this G15C record.
+    pub(crate) chip_id: u32,
     pub(crate) props: [u32; PROPS.len()],
     /// `apple,power-zones` cells (triples).
     pub(crate) zones: &'a [u32],
@@ -458,7 +460,7 @@ fn hwdata_b(out: &mut [u8], i: &Inputs<'_>, t: &Tables) -> R<()> {
         put32(out, IOMAPS + 32 * slot as usize + 0x18, 1)?;
     }
     // Identity and flags.
-    put32(out, 0xa28, 0x6031)?;
+    put32(out, 0xa28, i.chip_id)?;
     put32(out, 0xa2c, 1)?;
     put32(out, 0xa30, 2)?;
     for at in [0xa38, 0xa3c, 0xa40, 0xa50, 0xa58, 0xa60] {
@@ -848,6 +850,9 @@ pub(crate) fn cross_check(built: &[u8], file: &[u8]) -> Option<(usize, u32, u32)
 
 /// Builds the record into `out` (zeroed first) from the inputs.
 pub(crate) fn build(out: &mut [u8], i: &Inputs<'_>) -> R<()> {
+    if !matches!(i.chip_id, 0x6031 | 0x6034) {
+        return Err("unsupported G15C record SoC");
+    }
     if out.len() != SIZE {
         return Err("record of another size");
     }
@@ -950,6 +955,7 @@ mod tests {
 
     fn inputs<'a>(main: &'a [Opp], cs: &'a [Opp], slots: &'a [IoSlot]) -> Inputs<'a> {
         Inputs {
+            chip_id: 0x6031,
             props: props(),
             zones: &[],
             main,
@@ -966,6 +972,31 @@ mod tests {
         }
     }
 
+    #[test]
+    fn t6034_identity_and_six_memory_channels() {
+        let main = main_opps();
+        let cs = [opp(24, [635; CLUSTERS])];
+        let slots = [IoSlot {
+            slot: 11,
+            pa: 0x220000000,
+            va: 0xfffffc2068000000,
+            total: 6 * 0xd8000,
+            element: 0xd8000,
+            writable: true,
+        }];
+        let mut input = inputs(&main, &cs, &slots);
+        input.chip_id = 0x6034;
+        let mut out = vec![0u8; SIZE];
+        build(&mut out, &input).unwrap();
+        assert_eq!(get(&out, 0xa28), 0x6034);
+        assert_eq!(get(&out, IOMAPS + 32 * 11 + 0x10), 6 * 0xd8000);
+        assert_eq!(get(&out, IOMAPS + 32 * 11 + 0x14), 0xd8000);
+        // The fused 30-core part still has four ten-slot physical clusters.
+        assert_eq!(get(&out, 0xb54), 40);
+        input.chip_id = 0x6030;
+        assert_eq!(build(&mut out, &input), Err("unsupported G15C record SoC"));
+    }
+
     #[test]
     fn factors() {
         assert_eq!(F_1, 1.0f32.to_bits());
@@ -1500,6 +1531,7 @@ mod tests {
             })
             .collect();
         let i = Inputs {
+            chip_id: 0x6031,
             props,
             zones: &zones,
             main: &main,

drivers/gpu/drm/asahi/g15/boot.rs

@@ -469,13 +469,17 @@ pub(crate) fn admit(
     let pmp = cfg.platform == hw::Platform::AdtWithPmp;
     // J514C uses the same-die T6031 path on a normal boot. This does not qualify
     // the inherited J516C reference words. Keep exact board AND SoC checks;
-    // T6034 boards must never inherit this four-cluster T6031 configuration.
+    // T6034 boards use their own profile and never inherit T6031 admission.
     // The remaining display, DT/ADT, full firmware identity, hardware identity
     // and record-builder admission below is unchanged.
     let j514c_board = cfg.chip_id == 0x6031
         && cfg.platform == hw::Platform::DeviceTree
         && glue::machine(kernel::c_str!("apple,j514c"))
         && glue::machine(kernel::c_str!("apple,t6031"));
+    let j514m_board = cfg.chip_id == 0x6034
+        && cfg.platform == hw::Platform::DeviceTree
+        && glue::machine(kernel::c_str!("apple,j514m"))
+        && glue::machine(kernel::c_str!("apple,t6034"));
     if pmp {
         if !glue::board() {
             return Err(ENODEV);
@@ -490,7 +494,9 @@ pub(crate) fn admit(
             }
             return Err(err);
         }
-    } else if !glue::machine(cfg.machine) && !j514c_board {
+    } else if (cfg.chip_id == 0x6034 && !j514m_board)
+        || (!glue::machine(cfg.machine) && !j514c_board)
+    {
         dev_err!(dev, "G15: not a {} machine\n", cfg.name);
         return Err(ENODEV);
     } else {
@@ -505,11 +511,12 @@ pub(crate) fn admit(
             return Err(err);
         }
     }
-    if j514c_board {
+    if j514c_board || j514m_board {
         if let hw::Board::DeviceTree(reference) = cfg.board {
             dev_warn!(
                 dev,
-                "J514C bring-up: unqualified J516C reference: max_power_mw={} relative_power={:?} fast_die_mask={:#018x} alarm_mask={:#018x}; OPP powers are boot-loader stand-ins\n",
+                "{} bring-up: unqualified J516C reference: max_power_mw={} relative_power={:?} fast_die_mask={:#018x} alarm_mask={:#018x}; OPP powers are boot-loader stand-ins\n",
+                cfg.name,
                 reference.max_power_mw,
                 reference.relative_power,
                 reference.fast_die_mask,
@@ -519,7 +526,9 @@ pub(crate) fn admit(
     }
     let adt = adt::read(dev, cfg)
         .inspect_err(|e| dev_err!(dev, "GPU regions not admitted: {:?}\n", e))?;
-    identity::firmware(dev, &adt, cfg.firmware)
+    // T6034 requires complete identities; the older profiles keep their
+    // existing explicitly requested bring-up prefix policy.
+    identity::firmware(dev, &adt, cfg.firmware, cfg.chip_id != 0x6034)
         .inspect_err(|e| dev_err!(dev, "loaded GFX TEXT identity mismatch: {:?}\n", e))?;
     dev_info!(dev, "M3: firmware identity accepted\n");
     if cfg.board == hw::Board::None {