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Diffstat (limited to 'hw/ppc/pnv_psi.c')
-rw-r--r--hw/ppc/pnv_psi.c329
1 files changed, 327 insertions, 2 deletions
diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 067f733f1e..5a923e4151 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -22,6 +22,7 @@
#include "target/ppc/cpu.h"
#include "qemu/log.h"
#include "qapi/error.h"
+#include "monitor/monitor.h"
#include "exec/address-spaces.h"
@@ -114,6 +115,9 @@
#define PSIHB_BAR_MASK 0x0003fffffff00000ull
#define PSIHB_FSPBAR_MASK 0x0003ffff00000000ull
+#define PSIHB9_BAR_MASK 0x00fffffffff00000ull
+#define PSIHB9_FSPBAR_MASK 0x00ffffff00000000ull
+
#define PSIHB_REG(addr) (((addr) >> 3) + PSIHB_XSCOM_BAR)
static void pnv_psi_set_bar(PnvPsi *psi, uint64_t bar)
@@ -531,6 +535,7 @@ static void pnv_psi_power8_realize(DeviceState *dev, Error **errp)
}
static const char compat_p8[] = "ibm,power8-psihb-x\0ibm,psihb-x";
+static const char compat_p9[] = "ibm,power9-psihb-x\0ibm,psihb-x";
static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
{
@@ -550,8 +555,13 @@ static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
_FDT(fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)));
_FDT(fdt_setprop_cell(fdt, offset, "#address-cells", 2));
_FDT(fdt_setprop_cell(fdt, offset, "#size-cells", 1));
- _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8,
- sizeof(compat_p8)));
+ if (ppc->chip_type == PNV_CHIP_POWER9) {
+ _FDT(fdt_setprop(fdt, offset, "compatible", compat_p9,
+ sizeof(compat_p9)));
+ } else {
+ _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8,
+ sizeof(compat_p8)));
+ }
return 0;
}
@@ -584,6 +594,308 @@ static const TypeInfo pnv_psi_power8_info = {
.class_init = pnv_psi_power8_class_init,
};
+
+/* Common registers */
+
+#define PSIHB9_CR 0x20
+#define PSIHB9_SEMR 0x28
+
+/* P9 registers */
+
+#define PSIHB9_INTERRUPT_CONTROL 0x58
+#define PSIHB9_IRQ_METHOD PPC_BIT(0)
+#define PSIHB9_IRQ_RESET PPC_BIT(1)
+#define PSIHB9_ESB_CI_BASE 0x60
+#define PSIHB9_ESB_CI_VALID 1
+#define PSIHB9_ESB_NOTIF_ADDR 0x68
+#define PSIHB9_ESB_NOTIF_VALID 1
+#define PSIHB9_IVT_OFFSET 0x70
+#define PSIHB9_IVT_OFF_SHIFT 32
+
+#define PSIHB9_IRQ_LEVEL 0x78 /* assertion */
+#define PSIHB9_IRQ_LEVEL_PSI PPC_BIT(0)
+#define PSIHB9_IRQ_LEVEL_OCC PPC_BIT(1)
+#define PSIHB9_IRQ_LEVEL_FSI PPC_BIT(2)
+#define PSIHB9_IRQ_LEVEL_LPCHC PPC_BIT(3)
+#define PSIHB9_IRQ_LEVEL_LOCAL_ERR PPC_BIT(4)
+#define PSIHB9_IRQ_LEVEL_GLOBAL_ERR PPC_BIT(5)
+#define PSIHB9_IRQ_LEVEL_TPM PPC_BIT(6)
+#define PSIHB9_IRQ_LEVEL_LPC_SIRQ1 PPC_BIT(7)
+#define PSIHB9_IRQ_LEVEL_LPC_SIRQ2 PPC_BIT(8)
+#define PSIHB9_IRQ_LEVEL_LPC_SIRQ3 PPC_BIT(9)
+#define PSIHB9_IRQ_LEVEL_LPC_SIRQ4 PPC_BIT(10)
+#define PSIHB9_IRQ_LEVEL_SBE_I2C PPC_BIT(11)
+#define PSIHB9_IRQ_LEVEL_DIO PPC_BIT(12)
+#define PSIHB9_IRQ_LEVEL_PSU PPC_BIT(13)
+#define PSIHB9_IRQ_LEVEL_I2C_C PPC_BIT(14)
+#define PSIHB9_IRQ_LEVEL_I2C_D PPC_BIT(15)
+#define PSIHB9_IRQ_LEVEL_I2C_E PPC_BIT(16)
+#define PSIHB9_IRQ_LEVEL_SBE PPC_BIT(19)
+
+#define PSIHB9_IRQ_STAT 0x80 /* P bit */
+#define PSIHB9_IRQ_STAT_PSI PPC_BIT(0)
+#define PSIHB9_IRQ_STAT_OCC PPC_BIT(1)
+#define PSIHB9_IRQ_STAT_FSI PPC_BIT(2)
+#define PSIHB9_IRQ_STAT_LPCHC PPC_BIT(3)
+#define PSIHB9_IRQ_STAT_LOCAL_ERR PPC_BIT(4)
+#define PSIHB9_IRQ_STAT_GLOBAL_ERR PPC_BIT(5)
+#define PSIHB9_IRQ_STAT_TPM PPC_BIT(6)
+#define PSIHB9_IRQ_STAT_LPC_SIRQ1 PPC_BIT(7)
+#define PSIHB9_IRQ_STAT_LPC_SIRQ2 PPC_BIT(8)
+#define PSIHB9_IRQ_STAT_LPC_SIRQ3 PPC_BIT(9)
+#define PSIHB9_IRQ_STAT_LPC_SIRQ4 PPC_BIT(10)
+#define PSIHB9_IRQ_STAT_SBE_I2C PPC_BIT(11)
+#define PSIHB9_IRQ_STAT_DIO PPC_BIT(12)
+#define PSIHB9_IRQ_STAT_PSU PPC_BIT(13)
+
+static void pnv_psi_notify(XiveNotifier *xf, uint32_t srcno)
+{
+ PnvPsi *psi = PNV_PSI(xf);
+ uint64_t notif_port = psi->regs[PSIHB_REG(PSIHB9_ESB_NOTIF_ADDR)];
+ bool valid = notif_port & PSIHB9_ESB_NOTIF_VALID;
+ uint64_t notify_addr = notif_port & ~PSIHB9_ESB_NOTIF_VALID;
+
+ uint32_t offset =
+ (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT);
+ uint64_t lisn = cpu_to_be64(offset + srcno);
+
+ if (valid) {
+ cpu_physical_memory_write(notify_addr, &lisn, sizeof(lisn));
+ }
+}
+
+static uint64_t pnv_psi_p9_mmio_read(void *opaque, hwaddr addr, unsigned size)
+{
+ PnvPsi *psi = PNV_PSI(opaque);
+ uint32_t reg = PSIHB_REG(addr);
+ uint64_t val = -1;
+
+ switch (addr) {
+ case PSIHB9_CR:
+ case PSIHB9_SEMR:
+ /* FSP stuff */
+ case PSIHB9_INTERRUPT_CONTROL:
+ case PSIHB9_ESB_CI_BASE:
+ case PSIHB9_ESB_NOTIF_ADDR:
+ case PSIHB9_IVT_OFFSET:
+ val = psi->regs[reg];
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: read at 0x%" PRIx64 "\n", addr);
+ }
+
+ return val;
+}
+
+static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PnvPsi *psi = PNV_PSI(opaque);
+ Pnv9Psi *psi9 = PNV9_PSI(psi);
+ uint32_t reg = PSIHB_REG(addr);
+ MemoryRegion *sysmem = get_system_memory();
+
+ switch (addr) {
+ case PSIHB9_CR:
+ case PSIHB9_SEMR:
+ /* FSP stuff */
+ break;
+ case PSIHB9_INTERRUPT_CONTROL:
+ if (val & PSIHB9_IRQ_RESET) {
+ device_reset(DEVICE(&psi9->source));
+ }
+ psi->regs[reg] = val;
+ break;
+
+ case PSIHB9_ESB_CI_BASE:
+ if (!(val & PSIHB9_ESB_CI_VALID)) {
+ if (psi->regs[reg] & PSIHB9_ESB_CI_VALID) {
+ memory_region_del_subregion(sysmem, &psi9->source.esb_mmio);
+ }
+ } else {
+ if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) {
+ memory_region_add_subregion(sysmem,
+ val & ~PSIHB9_ESB_CI_VALID,
+ &psi9->source.esb_mmio);
+ }
+ }
+ psi->regs[reg] = val;
+ break;
+
+ case PSIHB9_ESB_NOTIF_ADDR:
+ psi->regs[reg] = val;
+ break;
+ case PSIHB9_IVT_OFFSET:
+ psi->regs[reg] = val;
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: write at 0x%" PRIx64 "\n", addr);
+ }
+}
+
+static const MemoryRegionOps pnv_psi_p9_mmio_ops = {
+ .read = pnv_psi_p9_mmio_read,
+ .write = pnv_psi_p9_mmio_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+};
+
+static uint64_t pnv_psi_p9_xscom_read(void *opaque, hwaddr addr, unsigned size)
+{
+ /* No read are expected */
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom read at 0x%" PRIx64 "\n", addr);
+ return -1;
+}
+
+static void pnv_psi_p9_xscom_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned size)
+{
+ PnvPsi *psi = PNV_PSI(opaque);
+
+ /* XSCOM is only used to set the PSIHB MMIO region */
+ switch (addr >> 3) {
+ case PSIHB_XSCOM_BAR:
+ pnv_psi_set_bar(psi, val);
+ break;
+ default:
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom write at 0x%" PRIx64 "\n",
+ addr);
+ }
+}
+
+static const MemoryRegionOps pnv_psi_p9_xscom_ops = {
+ .read = pnv_psi_p9_xscom_read,
+ .write = pnv_psi_p9_xscom_write,
+ .endianness = DEVICE_BIG_ENDIAN,
+ .valid = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ },
+ .impl = {
+ .min_access_size = 8,
+ .max_access_size = 8,
+ }
+};
+
+static void pnv_psi_power9_irq_set(PnvPsi *psi, int irq, bool state)
+{
+ uint32_t irq_method = psi->regs[PSIHB_REG(PSIHB9_INTERRUPT_CONTROL)];
+
+ if (irq > PSIHB9_NUM_IRQS) {
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: Unsupported irq %d\n", irq);
+ return;
+ }
+
+ if (irq_method & PSIHB9_IRQ_METHOD) {
+ qemu_log_mask(LOG_GUEST_ERROR, "PSI: LSI IRQ method no supported\n");
+ return;
+ }
+
+ /* Update LSI levels */
+ if (state) {
+ psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] |= PPC_BIT(irq);
+ } else {
+ psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] &= ~PPC_BIT(irq);
+ }
+
+ qemu_set_irq(psi->qirqs[irq], state);
+}
+
+static void pnv_psi_power9_reset(void *dev)
+{
+ Pnv9Psi *psi = PNV9_PSI(dev);
+
+ pnv_psi_reset(dev);
+
+ if (memory_region_is_mapped(&psi->source.esb_mmio)) {
+ memory_region_del_subregion(get_system_memory(), &psi->source.esb_mmio);
+ }
+}
+
+static void pnv_psi_power9_instance_init(Object *obj)
+{
+ Pnv9Psi *psi = PNV9_PSI(obj);
+
+ object_initialize_child(obj, "source", &psi->source, sizeof(psi->source),
+ TYPE_XIVE_SOURCE, &error_abort, NULL);
+}
+
+static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
+{
+ PnvPsi *psi = PNV_PSI(dev);
+ XiveSource *xsrc = &PNV9_PSI(psi)->source;
+ Error *local_err = NULL;
+ int i;
+
+ /* This is the only device with 4k ESB pages */
+ object_property_set_int(OBJECT(xsrc), XIVE_ESB_4K, "shift",
+ &error_fatal);
+ object_property_set_int(OBJECT(xsrc), PSIHB9_NUM_IRQS, "nr-irqs",
+ &error_fatal);
+ object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(psi),
+ &error_fatal);
+ object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ for (i = 0; i < xsrc->nr_irqs; i++) {
+ xive_source_irq_set_lsi(xsrc, i);
+ }
+
+ psi->qirqs = qemu_allocate_irqs(xive_source_set_irq, xsrc, xsrc->nr_irqs);
+
+ /* XSCOM region for PSI registers */
+ pnv_xscom_region_init(&psi->xscom_regs, OBJECT(dev), &pnv_psi_p9_xscom_ops,
+ psi, "xscom-psi", PNV9_XSCOM_PSIHB_SIZE);
+
+ /* MMIO region for PSI registers */
+ memory_region_init_io(&psi->regs_mr, OBJECT(dev), &pnv_psi_p9_mmio_ops, psi,
+ "psihb", PNV9_PSIHB_SIZE);
+
+ pnv_psi_set_bar(psi, psi->bar | PSIHB_BAR_EN);
+
+ qemu_register_reset(pnv_psi_power9_reset, dev);
+}
+
+static void pnv_psi_power9_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
+ XiveNotifierClass *xfc = XIVE_NOTIFIER_CLASS(klass);
+
+ dc->desc = "PowerNV PSI Controller POWER9";
+ dc->realize = pnv_psi_power9_realize;
+
+ ppc->chip_type = PNV_CHIP_POWER9;
+ ppc->xscom_pcba = PNV9_XSCOM_PSIHB_BASE;
+ ppc->xscom_size = PNV9_XSCOM_PSIHB_SIZE;
+ ppc->bar_mask = PSIHB9_BAR_MASK;
+ ppc->irq_set = pnv_psi_power9_irq_set;
+
+ xfc->notify = pnv_psi_notify;
+}
+
+static const TypeInfo pnv_psi_power9_info = {
+ .name = TYPE_PNV9_PSI,
+ .parent = TYPE_PNV_PSI,
+ .instance_size = sizeof(Pnv9Psi),
+ .instance_init = pnv_psi_power9_instance_init,
+ .class_init = pnv_psi_power9_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_XIVE_NOTIFIER },
+ { },
+ },
+};
+
static void pnv_psi_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
@@ -612,6 +924,19 @@ static void pnv_psi_register_types(void)
{
type_register_static(&pnv_psi_info);
type_register_static(&pnv_psi_power8_info);
+ type_register_static(&pnv_psi_power9_info);
}
type_init(pnv_psi_register_types);
+
+void pnv_psi_pic_print_info(Pnv9Psi *psi9, Monitor *mon)
+{
+ PnvPsi *psi = PNV_PSI(psi9);
+
+ uint32_t offset =
+ (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT);
+
+ monitor_printf(mon, "PSIHB Source %08x .. %08x\n",
+ offset, offset + psi9->source.nr_irqs - 1);
+ xive_source_pic_print_info(&psi9->source, offset, mon);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 03:39:51 +0000