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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-10-08 17:16:09 +0300 |
|---|---|---|
| committer | Marc Zyngier <marc.zyngier@arm.com> | 2017-10-19 13:22:41 +0300 |
| commit | 40619a2ef69d5e183717d28e8c98a59319c78a4f (patch) | |
| tree | 4d279cd7fe5ff5ea9dc232359454615ce209c2d4 /drivers/irqchip | |
| parent | ab60491ee5d346557f152c7e8d3e7238c9b96c5c (diff) | |
| download | linux-40619a2ef69d5e183717d28e8c98a59319c78a4f.tar.xz | |
irqchip/gic-v3-its: Make its_send_vinvall operate on a single ITS
Currently, its_send_vinvall operates on all ITSs. As we're about
to try and limit the amount of commands we send to ITSs that are
not involved in dealing with a given VM, let's redefine that
primitive so that it takes a target ITS as a parameter.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index a63b4ee34860..22ee83043785 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -983,18 +983,12 @@ static void its_send_vmovp(struct its_vpe *vpe) raw_spin_unlock_irqrestore(&vmovp_lock, flags); } -static void its_send_vinvall(struct its_vpe *vpe) +static void its_send_vinvall(struct its_node *its, struct its_vpe *vpe) { struct its_cmd_desc desc; - struct its_node *its; desc.its_vinvall_cmd.vpe = vpe; - - list_for_each_entry(its, &its_nodes, entry) { - if (!its->is_v4) - continue; - its_send_single_vcommand(its, its_build_vinvall_cmd, &desc); - } + its_send_single_vcommand(its, its_build_vinvall_cmd, &desc); } /* @@ -2466,6 +2460,18 @@ static void its_vpe_deschedule(struct its_vpe *vpe) } } +static void its_vpe_invall(struct its_vpe *vpe) +{ + struct its_node *its; + + list_for_each_entry(its, &its_nodes, entry) { + if (!its->is_v4) + continue; + + its_send_vinvall(its, vpe); + } +} + static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) { struct its_vpe *vpe = irq_data_get_irq_chip_data(d); @@ -2481,7 +2487,7 @@ static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info) return 0; case INVALL_VPE: - its_send_vinvall(vpe); + its_vpe_invall(vpe); return 0; default: @@ -2710,11 +2716,19 @@ static int its_vpe_irq_domain_activate(struct irq_domain *domain, struct irq_data *d, bool early) { struct its_vpe *vpe = irq_data_get_irq_chip_data(d); + struct its_node *its; /* Map the VPE to the first possible CPU */ vpe->col_idx = cpumask_first(cpu_online_mask); its_send_vmapp(vpe, true); - its_send_vinvall(vpe); + + list_for_each_entry(its, &its_nodes, entry) { + if (!its->is_v4) + continue; + + its_send_vinvall(its, vpe); + } + return 0; } |