Merge remote-tracking branch 'remotes/philmd/tags/mips-20211018' into staging

MIPS patches queue

Hardware emulation:
- Generate FDT blob for Boston machine (Jiaxun)
- VIA chipset cleanups (Zoltan)

TCG:
- Use tcg_constant() in Compact branch and MSA opcodes
- Restrict nanoMIPS DSP MULT[U] opcode accumulator to Rel6
- Fix DEXTRV_S.H DSP opcode
- Remove unused TCG temporary for some DSP opcodes

# gpg: Signature made Sun 17 Oct 2021 03:50:57 PM PDT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <[email protected]>" [full]

* remotes/philmd/tags/mips-20211018:
  via-ide: Avoid using isa_get_irq()
  vt82c686: Add a method to VIA_ISA to raise ISA interrupts
  vt82c686: Move common code to via_isa_realize
  via-ide: Set user_creatable to false
  target/mips: Remove unused TCG temporary in gen_mipsdsp_accinsn()
  target/mips: Fix DEXTRV_S.H DSP opcode
  target/mips: Use tcg_constant_tl() in gen_compute_compact_branch()
  target/mips: Use explicit extract32() calls in gen_msa_i5()
  target/mips: Use tcg_constant_i32() in gen_msa_3rf()
  target/mips: Use tcg_constant_i32() in gen_msa_2r()
  target/mips: Use tcg_constant_i32() in gen_msa_2rf()
  target/mips: Use tcg_constant_i32() in gen_msa_elm_df()
  target/mips: Remove unused register from MSA 2R/2RF instruction format
  hw/mips/boston: Add FDT generator
  hw/mips/boston: Allow loading elf kernel and dtb
  hw/mips/boston: Massage memory map information
  target/mips: Check nanoMIPS DSP MULT[U] accumulator with Release 6

Signed-off-by: Richard Henderson <[email protected]>

Author: rth7680

hw/ide/via.c

@@ -29,7 +29,7 @@
 #include "migration/vmstate.h"
 #include "qemu/module.h"
 #include "sysemu/dma.h"
-
+#include "hw/isa/vt82c686.h"
 #include "hw/ide/pci.h"
 #include "trace.h"
 
@@ -112,7 +112,7 @@ static void via_ide_set_irq(void *opaque, int n, int level)
         d->config[0x70 + n * 8] &= ~0x80;
     }
 
-    qemu_set_irq(isa_get_irq(NULL, 14 + n), level);
+    via_isa_set_irq(pci_get_function_0(d), 14 + n, level);
 }
 
 static void via_ide_reset(DeviceState *dev)
@@ -217,6 +217,9 @@ static void via_ide_class_init(ObjectClass *klass, void *data)
 
     dc->reset = via_ide_reset;
     dc->vmsd = &vmstate_ide_pci;
+    /* Reason: only works as function of VIA southbridge */
+    dc->user_creatable = false;
+
     k->realize = via_ide_realize;
     k->exit = via_ide_exitfn;
     k->vendor_id = PCI_VENDOR_ID_VIA;

hw/isa/vt82c686.c

@@ -542,6 +542,8 @@ OBJECT_DECLARE_SIMPLE_TYPE(ViaISAState, VIA_ISA)
 struct ViaISAState {
     PCIDevice dev;
     qemu_irq cpu_intr;
+    qemu_irq *isa_irqs;
+    ISABus *isa_bus;
     ViaSuperIOState *via_sio;
 };
 
@@ -566,12 +568,42 @@ static const TypeInfo via_isa_info = {
     },
 };
 
+void via_isa_set_irq(PCIDevice *d, int n, int level)
+{
+    ViaISAState *s = VIA_ISA(d);
+    qemu_set_irq(s->isa_irqs[n], level);
+}
+
 static void via_isa_request_i8259_irq(void *opaque, int irq, int level)
 {
     ViaISAState *s = opaque;
     qemu_set_irq(s->cpu_intr, level);
 }
 
+static void via_isa_realize(PCIDevice *d, Error **errp)
+{
+    ViaISAState *s = VIA_ISA(d);
+    DeviceState *dev = DEVICE(d);
+    qemu_irq *isa_irq;
+    int i;
+
+    qdev_init_gpio_out(dev, &s->cpu_intr, 1);
+    isa_irq = qemu_allocate_irqs(via_isa_request_i8259_irq, s, 1);
+    s->isa_bus = isa_bus_new(dev, get_system_memory(), pci_address_space_io(d),
+                          &error_fatal);
+    s->isa_irqs = i8259_init(s->isa_bus, *isa_irq);
+    isa_bus_irqs(s->isa_bus, s->isa_irqs);
+    i8254_pit_init(s->isa_bus, 0x40, 0, NULL);
+    i8257_dma_init(s->isa_bus, 0);
+    mc146818_rtc_init(s->isa_bus, 2000, NULL);
+
+    for (i = 0; i < PCI_CONFIG_HEADER_SIZE; i++) {
+        if (i < PCI_COMMAND || i >= PCI_REVISION_ID) {
+            d->wmask[i] = 0;
+        }
+    }
+}
+
 /* TYPE_VT82C686B_ISA */
 
 static void vt82c686b_write_config(PCIDevice *d, uint32_t addr,
@@ -610,27 +642,10 @@ static void vt82c686b_isa_reset(DeviceState *dev)
 static void vt82c686b_realize(PCIDevice *d, Error **errp)
 {
     ViaISAState *s = VIA_ISA(d);
-    DeviceState *dev = DEVICE(d);
-    ISABus *isa_bus;
-    qemu_irq *isa_irq;
-    int i;
 
-    qdev_init_gpio_out(dev, &s->cpu_intr, 1);
-    isa_irq = qemu_allocate_irqs(via_isa_request_i8259_irq, s, 1);
-    isa_bus = isa_bus_new(dev, get_system_memory(), pci_address_space_io(d),
-                          &error_fatal);
-    isa_bus_irqs(isa_bus, i8259_init(isa_bus, *isa_irq));
-    i8254_pit_init(isa_bus, 0x40, 0, NULL);
-    i8257_dma_init(isa_bus, 0);
-    s->via_sio = VIA_SUPERIO(isa_create_simple(isa_bus,
+    via_isa_realize(d, errp);
+    s->via_sio = VIA_SUPERIO(isa_create_simple(s->isa_bus,
                                                TYPE_VT82C686B_SUPERIO));
-    mc146818_rtc_init(isa_bus, 2000, NULL);
-
-    for (i = 0; i < PCI_CONFIG_HEADER_SIZE; i++) {
-        if (i < PCI_COMMAND || i >= PCI_REVISION_ID) {
-            d->wmask[i] = 0;
-        }
-    }
 }
 
 static void vt82c686b_class_init(ObjectClass *klass, void *data)
@@ -691,26 +706,10 @@ static void vt8231_isa_reset(DeviceState *dev)
 static void vt8231_realize(PCIDevice *d, Error **errp)
 {
     ViaISAState *s = VIA_ISA(d);
-    DeviceState *dev = DEVICE(d);
-    ISABus *isa_bus;
-    qemu_irq *isa_irq;
-    int i;
-
-    qdev_init_gpio_out(dev, &s->cpu_intr, 1);
-    isa_irq = qemu_allocate_irqs(via_isa_request_i8259_irq, s, 1);
-    isa_bus = isa_bus_new(dev, get_system_memory(), pci_address_space_io(d),
-                          &error_fatal);
-    isa_bus_irqs(isa_bus, i8259_init(isa_bus, *isa_irq));
-    i8254_pit_init(isa_bus, 0x40, 0, NULL);
-    i8257_dma_init(isa_bus, 0);
-    s->via_sio = VIA_SUPERIO(isa_create_simple(isa_bus, TYPE_VT8231_SUPERIO));
-    mc146818_rtc_init(isa_bus, 2000, NULL);
 
-    for (i = 0; i < PCI_CONFIG_HEADER_SIZE; i++) {
-        if (i < PCI_COMMAND || i >= PCI_REVISION_ID) {
-            d->wmask[i] = 0;
-        }
-    }
+    via_isa_realize(d, errp);
+    s->via_sio = VIA_SUPERIO(isa_create_simple(s->isa_bus,
+                                               TYPE_VT8231_SUPERIO));
 }
 
 static void vt8231_class_init(ObjectClass *klass, void *data)