[PATCH v3 31/32] hw/arm/virt-acpi: Advertise Tegra241 CMDQV nodes in DSDT

[Shameer Kolothum <skolothumtho@nvidia.com>]

From: Nicolin Chen <nicolinc@nvidia.com>

Add ACPI DSDT support for Tegra241 CMDQV when the SMMUv3 instance is
created with tegra241-cmdqv.

The SMMUv3 device identifier is used as the ACPI _UID. This matches
the Identifier field of the corresponding SMMUv3 IORT node, allowing
the CMDQV DSDT device to be correctly associated with its SMMU.

Because virt-acpi-build.c now includes CONFIG_DEVICES via the Tegra241
CMDQV header, the Meson file entry is updated to build it as part of
arm_ss instead of arm_common_ss

Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
---
 hw/arm/virt-acpi-build.c | 52 ++++++++++++++++++++++++++++++++++++++++
 hw/arm/trace-events      |  1 +
 2 files changed, 53 insertions(+)

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index 20605185c5..462faa6a2b 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -65,6 +65,9 @@
 #include "target/arm/cpu.h"
 #include "target/arm/multiprocessing.h"
 
+#include "smmuv3-accel.h"
+#include "tegra241-cmdqv.h"
+
 #define ARM_SPI_BASE 32
 
 #define ACPI_BUILD_TABLE_SIZE             0x20000
@@ -1113,6 +1116,51 @@ static void build_fadt_rev6(GArray *table_data, BIOSLinker *linker,
     build_fadt(table_data, linker, &fadt, vms->oem_id, vms->oem_table_id);
 }
 
+static void acpi_dsdt_add_tegra241_cmdqv(Aml *scope, VirtMachineState *vms)
+{
+    for (int i = 0; i < vms->smmuv3_devices->len; i++) {
+        Object *obj = OBJECT(g_ptr_array_index(vms->smmuv3_devices, i));
+        PlatformBusDevice *pbus;
+        Aml *dev, *crs, *addr;
+        SysBusDevice *sbdev;
+        hwaddr base;
+        uint32_t id;
+        int irq;
+
+        if (smmuv3_accel_cmdqv_type(obj) != SMMUV3_CMDQV_TEGRA241) {
+            continue;
+        }
+        id = object_property_get_uint(obj, "identifier", &error_abort);
+        pbus = PLATFORM_BUS_DEVICE(vms->platform_bus_dev);
+        sbdev = SYS_BUS_DEVICE(obj);
+        base = platform_bus_get_mmio_addr(pbus, sbdev, 1);
+        base += vms->memmap[VIRT_PLATFORM_BUS].base;
+        irq = platform_bus_get_irqn(pbus, sbdev, NUM_SMMU_IRQS);
+        irq += vms->irqmap[VIRT_PLATFORM_BUS];
+        irq += ARM_SPI_BASE;
+
+        dev = aml_device("CV%.02u", id);
+        aml_append(dev, aml_name_decl("_HID", aml_string("NVDA200C")));
+        aml_append(dev, aml_name_decl("_UID", aml_int(id)));
+        aml_append(dev, aml_name_decl("_CCA", aml_int(1)));
+
+        crs = aml_resource_template();
+        addr = aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,
+                                AML_CACHEABLE, AML_READ_WRITE, 0x0, base,
+                                base + TEGRA241_CMDQV_IO_LEN - 0x1, 0x0,
+                                TEGRA241_CMDQV_IO_LEN);
+        aml_append(crs, addr);
+        aml_append(crs, aml_interrupt(AML_CONSUMER, AML_EDGE,
+                                      AML_ACTIVE_HIGH, AML_EXCLUSIVE,
+                                      (uint32_t *)&irq, 1));
+        aml_append(dev, aml_name_decl("_CRS", crs));
+
+        aml_append(scope, dev);
+
+        trace_virt_acpi_dsdt_tegra241_cmdqv(id, base, irq);
+    }
+}
+
 /* DSDT */
 static void
 build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
@@ -1177,6 +1225,10 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
     acpi_dsdt_add_tpm(scope, vms);
 #endif
 
+    if (!vms->legacy_smmuv3_present) {
+        acpi_dsdt_add_tegra241_cmdqv(scope, vms);
+    }
+
     aml_append(dsdt, scope);
 
     pci0_scope = aml_scope("\\_SB.PCI0");
diff --git a/hw/arm/trace-events b/hw/arm/trace-events
index ef495c040c..e7e3ccfe9f 100644
--- a/hw/arm/trace-events
+++ b/hw/arm/trace-events
@@ -9,6 +9,7 @@ omap1_lpg_led(const char *onoff) "omap1 LPG: LED is %s"
 
 # virt-acpi-build.c
 virt_acpi_setup(void) "No fw cfg or ACPI disabled. Bailing out."
+virt_acpi_dsdt_tegra241_cmdqv(int smmu_id, uint64_t base, uint32_t irq) "DSDT: add cmdqv node for (id=%d), base=0x%" PRIx64 ", irq=%d"
 
 # smmu-common.c
 smmu_add_mr(const char *name) "%s"
-- 
2.43.0