diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-05-13 17:31:44 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-05-14 12:36:42 +0200 |
| commit | 7dd20bf2f010430b75b109e4d4101cd1616afba3 (patch) | |
| tree | ad73a9d3c807d029ede5cfa0d0ba9cc71eaef97d | |
| parent | 03c298760ed97c5981402d64c4eed9bc4f2f0a4e (diff) | |
irqchip/gic-v3-its: Use allocation size from the prepare call
Now that .msi_prepare() gets called at the right time and not
with semi-random parameters, remove the ugly hack that tried
to fix up the number of allocated vectors.
It is now correct by construction.
Signed-off-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250513163144.2215824-6-maz@kernel.org
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its-msi-parent.c | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its-msi-parent.c b/drivers/irqchip/irq-gic-v3-its-msi-parent.c index 958736622fa5..6a5f64f120d4 100644 --- a/drivers/irqchip/irq-gic-v3-its-msi-parent.c +++ b/drivers/irqchip/irq-gic-v3-its-msi-parent.c @@ -68,17 +68,6 @@ static int its_pci_msi_prepare(struct irq_domain *domain, struct device *dev, info->scratchpad[0].ul = pci_msi_domain_get_msi_rid(domain->parent, pdev); /* - * @domain->msi_domain_info->hwsize contains the size of the - * MSI[-X] domain, but vector allocation happens one by one. This - * needs some thought when MSI comes into play as the size of MSI - * might be unknown at domain creation time and therefore set to - * MSI_MAX_INDEX. - */ - msi_info = msi_get_domain_info(domain); - if (msi_info->hwsize > nvec) - nvec = msi_info->hwsize; - - /* * Always allocate a power of 2, and special case device 0 for * broken systems where the DevID is not wired (and all devices * appear as DevID 0). For that reason, we generously allocate a @@ -151,14 +140,6 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev, /* ITS specific DeviceID, as the core ITS ignores dev. */ info->scratchpad[0].ul = dev_id; - /* - * @domain->msi_domain_info->hwsize contains the size of the device - * domain, but vector allocation happens one by one. - */ - msi_info = msi_get_domain_info(domain); - if (msi_info->hwsize > nvec) - nvec = msi_info->hwsize; - /* Allocate at least 32 MSIs, and always as a power of 2 */ nvec = max_t(int, 32, roundup_pow_of_two(nvec)); |