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oot: switch hypervisor notification implementation

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Using this patch we are switching to PCIe based MSI
implementation from IVC based implementation to
send notification to other endpoint of IVC.

JIRA ESLC-6885

Change-Id: Iba270ef4b0170a5a542c13a0c8efa58fd43226ab
Signed-off-by: Manish Bhardwaj <mbhardwaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2804390
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Suresh Venkatachalam <skathirampat@nvidia.com>
Reviewed-by: Sandeep Trasi <strasi@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Manish Bhardwaj
2022-11-07 14:04:12 +00:00
committed by mobile promotions
parent f31946e09e
commit 3a2b0c6038
1 changed files with 0 additions and 16 deletions
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16
drivers/virt/tegra/tegra_hv.c
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@@ -106,7 +106,6 @@ struct tegra_hv_data {
*/
static const struct tegra_hv_data *tegra_hv_data;
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
struct ivc_notify_info {
// Trap based notification
uintptr_t trap_region_base_va;
@@ -121,7 +120,6 @@ struct ivc_notify_info {
};
static struct ivc_notify_info ivc_notify;
#endif
bool is_tegra_hypervisor_mode(void)
{
@@ -137,13 +135,9 @@ EXPORT_SYMBOL(is_tegra_hypervisor_mode);
static void ivc_raise_irq(struct tegra_ivc *ivc_channel, void *data)
{
struct hv_ivc *ivc = container_of(ivc_channel, struct hv_ivc, ivc);
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
if (WARN_ON(!ivc->cookie.notify_va))
return;
*ivc->cookie.notify_va = ivc->qd->raise_irq;
#else
hyp_raise_irq(ivc->qd->raise_irq, ivc->other_guestid);
#endif
}
static const struct tegra_hv_data *get_hvd(void)
@@ -223,9 +217,7 @@ static int tegra_hv_add_ivc(struct tegra_hv_data *hvd,
uintptr_t rx_base, tx_base;
uint32_t i;
struct irq_data *d;
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
uint64_t va_offset;
#endif
ivc = &hvd->ivc_devs[qd->id];
BUG_ON(ivc->valid);
@@ -295,7 +287,6 @@ static int tegra_hv_add_ivc(struct tegra_hv_data *hvd,
return -ENODEV;
}
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
if (qd->msi_ipa != 0U) {
if (WARN_ON(ivc_notify.msi_region_size == 0UL))
return -EINVAL;
@@ -322,7 +313,6 @@ static int tegra_hv_add_ivc(struct tegra_hv_data *hvd,
if (WARN_ON(ivc->cookie.notify_va == NULL))
return -EINVAL;
}
#endif
INFO("adding ivc%u: rx_base=%lx tx_base = %lx size=%x irq = %d (%lu)\n",
qd->id, rx_base, tx_base, qd->size, ivc->irq, d->hwirq);
@@ -452,7 +442,6 @@ static int __init tegra_hv_setup(struct tegra_hv_data *hvd)
return -ENOMEM;
}
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
/*
* Map IVC Trap MMIO Notification region
*/
@@ -502,7 +491,6 @@ static int __init tegra_hv_setup(struct tegra_hv_data *hvd)
return -ENOMEM;
}
}
#endif
hvd->guest_ivc_info = kzalloc(hvd->info->nr_areas *
sizeof(*hvd->guest_ivc_info), GFP_KERNEL);
@@ -679,13 +667,9 @@ void tegra_hv_ivc_notify(struct tegra_hv_ivc_cookie *ivck)
return;
ivc = cookie_to_ivc_dev(ivck);
#ifdef SUPPORTS_TRAP_MSI_NOTIFICATION
if (WARN_ON(!ivc->cookie.notify_va))
return;
*ivc->cookie.notify_va = ivc->qd->raise_irq;
#else
hyp_raise_irq(ivc->qd->raise_irq, ivc->other_guestid);
#endif
}
EXPORT_SYMBOL(tegra_hv_ivc_notify);