From: Pavel Tatashin <pasha.tatashin@soleen.com>
To: pasha.tatashin@soleen.com, jmorris@namei.org, sashal@kernel.org,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com,
james.morse@arm.com, vladimir.murzin@arm.com,
mark.rutland@arm.com
Subject: [PATCH v1 3/6] rqchip/gic-v3-its: add reset pending table function
Date: Mon, 26 Aug 2019 15:00:53 -0400 [thread overview]
Message-ID: <20190826190056.27854-4-pasha.tatashin@soleen.com> (raw)
In-Reply-To: <20190826190056.27854-1-pasha.tatashin@soleen.com>
Add function that is similar to gic_reset_prop_table but for pending
table.
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
---
drivers/irqchip/irq-gic-v3-its.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 656b6c6e1bf8..124e2cb890cd 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1989,17 +1989,23 @@ static int its_alloc_collections(struct its_node *its)
return 0;
}
+static void gic_reset_pending_table(void *va)
+{
+ memset(va, 0, LPI_PENDBASE_SZ);
+
+ /* Make sure the GIC will observe the zero-ed page */
+ gic_flush_dcache_to_poc(va, LPI_PENDBASE_SZ);
+}
+
static struct page *its_allocate_pending_table(gfp_t gfp_flags)
{
struct page *pend_page;
- pend_page = alloc_pages(gfp_flags | __GFP_ZERO,
- get_order(LPI_PENDBASE_SZ));
+ pend_page = alloc_pages(gfp_flags, get_order(LPI_PENDBASE_SZ));
if (!pend_page)
return NULL;
- /* Make sure the GIC will observe the zero-ed page */
- gic_flush_dcache_to_poc(page_address(pend_page), LPI_PENDBASE_SZ);
+ gic_reset_pending_table(page_address(pend_page));
return pend_page;
}
--
2.23.0
next prev parent reply other threads:[~2019-08-26 19:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-26 19:00 [PATCH v1 0/6] Allow kexec reboot for GICv3 and device tree Pavel Tatashin
2019-08-26 19:00 ` [PATCH v1 1/6] rqchip/gic-v3-its: reset prop table outside of allocation Pavel Tatashin
2019-08-26 19:00 ` [PATCH v1 2/6] rqchip/gic-v3-its: use temporary va / pa variables Pavel Tatashin
2019-08-26 19:00 ` Pavel Tatashin [this message]
2019-08-26 19:00 ` [PATCH v1 4/6] rqchip/gic-v3-its: move reset pending table outside of allocator Pavel Tatashin
2019-08-26 19:00 ` [PATCH v1 5/6] " Pavel Tatashin
2019-08-26 21:29 ` Pavel Tatashin
2019-08-26 19:00 ` [PATCH v1 6/6] dt-bindings: interrupt-controller: add optional memory-region Pavel Tatashin
2019-08-26 19:13 ` [PATCH v1 0/6] Allow kexec reboot for GICv3 and device tree Marc Zyngier
2019-08-26 21:25 ` Pavel Tatashin
2019-08-27 8:15 ` Marc Zyngier
2019-08-27 8:53 ` Pavel Tatashin
2019-08-27 9:24 ` Marc Zyngier
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