diff options
Diffstat (limited to 'arch/powerpc/sysdev/xive/native.c')
| -rw-r--r-- | arch/powerpc/sysdev/xive/native.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c index 1ca127d052a6..7782201e5fe8 100644 --- a/arch/powerpc/sysdev/xive/native.c +++ b/arch/powerpc/sysdev/xive/native.c @@ -437,6 +437,12 @@ void xive_native_sync_source(u32 hw_irq) } EXPORT_SYMBOL_GPL(xive_native_sync_source); +void xive_native_sync_queue(u32 hw_irq) +{ + opal_xive_sync(XIVE_SYNC_QUEUE, hw_irq); +} +EXPORT_SYMBOL_GPL(xive_native_sync_queue); + static const struct xive_ops xive_native_ops = { .populate_irq_data = xive_native_populate_irq_data, .configure_irq = xive_native_configure_irq, @@ -515,6 +521,9 @@ u32 xive_native_default_eq_shift(void) } EXPORT_SYMBOL_GPL(xive_native_default_eq_shift); +unsigned long xive_tima_os; +EXPORT_SYMBOL_GPL(xive_tima_os); + bool __init xive_native_init(void) { struct device_node *np; @@ -567,6 +576,14 @@ bool __init xive_native_init(void) for_each_possible_cpu(cpu) kvmppc_set_xive_tima(cpu, r.start, tima); + /* Resource 2 is OS window */ + if (of_address_to_resource(np, 2, &r)) { + pr_err("Failed to get thread mgmnt area resource\n"); + return false; + } + + xive_tima_os = r.start; + /* Grab size of provisionning pages */ xive_parse_provisioning(np); @@ -711,3 +728,96 @@ bool xive_native_has_single_escalation(void) return xive_has_single_esc; } EXPORT_SYMBOL_GPL(xive_native_has_single_escalation); + +int xive_native_get_queue_info(u32 vp_id, u32 prio, + u64 *out_qpage, + u64 *out_qsize, + u64 *out_qeoi_page, + u32 *out_escalate_irq, + u64 *out_qflags) +{ + __be64 qpage; + __be64 qsize; + __be64 qeoi_page; + __be32 escalate_irq; + __be64 qflags; + s64 rc; + + rc = opal_xive_get_queue_info(vp_id, prio, &qpage, &qsize, + &qeoi_page, &escalate_irq, &qflags); + if (rc) { + pr_err("OPAL failed to get queue info for VCPU %d/%d : %lld\n", + vp_id, prio, rc); + return -EIO; + } + + if (out_qpage) + *out_qpage = be64_to_cpu(qpage); + if (out_qsize) + *out_qsize = be32_to_cpu(qsize); + if (out_qeoi_page) + *out_qeoi_page = be64_to_cpu(qeoi_page); + if (out_escalate_irq) + *out_escalate_irq = be32_to_cpu(escalate_irq); + if (out_qflags) + *out_qflags = be64_to_cpu(qflags); + + return 0; +} +EXPORT_SYMBOL_GPL(xive_native_get_queue_info); + +int xive_native_get_queue_state(u32 vp_id, u32 prio, u32 *qtoggle, u32 *qindex) +{ + __be32 opal_qtoggle; + __be32 opal_qindex; + s64 rc; + + rc = opal_xive_get_queue_state(vp_id, prio, &opal_qtoggle, + &opal_qindex); + if (rc) { + pr_err("OPAL failed to get queue state for VCPU %d/%d : %lld\n", + vp_id, prio, rc); + return -EIO; + } + + if (qtoggle) + *qtoggle = be32_to_cpu(opal_qtoggle); + if (qindex) + *qindex = be32_to_cpu(opal_qindex); + + return 0; +} +EXPORT_SYMBOL_GPL(xive_native_get_queue_state); + +int xive_native_set_queue_state(u32 vp_id, u32 prio, u32 qtoggle, u32 qindex) +{ + s64 rc; + + rc = opal_xive_set_queue_state(vp_id, prio, qtoggle, qindex); + if (rc) { + pr_err("OPAL failed to set queue state for VCPU %d/%d : %lld\n", + vp_id, prio, rc); + return -EIO; + } + + return 0; +} +EXPORT_SYMBOL_GPL(xive_native_set_queue_state); + +int xive_native_get_vp_state(u32 vp_id, u64 *out_state) +{ + __be64 state; + s64 rc; + + rc = opal_xive_get_vp_state(vp_id, &state); + if (rc) { + pr_err("OPAL failed to get vp state for VCPU %d : %lld\n", + vp_id, rc); + return -EIO; + } + + if (out_state) + *out_state = be64_to_cpu(state); + return 0; +} +EXPORT_SYMBOL_GPL(xive_native_get_vp_state); |