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From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
	kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
	qemu-devel@nongnu.org, qemu-arm@nongnu.org, drjones@redhat.com,
	marc.zyngier@arm.com, christoffer.dall@linaro.org
Cc: andre.przywara@arm.com, pbonzini@redhat.com
Subject: [kvm-unit-tests RFC 08/15] arm/arm64: ITS: enable LPIs at re-distributor level
Date: Mon,  5 Dec 2016 22:46:39 +0100	[thread overview]
Message-ID: <1480974406-29345-9-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1480974406-29345-1-git-send-email-eric.auger@redhat.com>

This helper function enables the signaling of LPIs by the
redistributor to the connected PE.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 lib/arm/asm/gic-v3-its.h |  1 +
 lib/arm/gic-v3-its.c     | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/lib/arm/asm/gic-v3-its.h b/lib/arm/asm/gic-v3-its.h
index 21054cb..3e36a2a 100644
--- a/lib/arm/asm/gic-v3-its.h
+++ b/lib/arm/asm/gic-v3-its.h
@@ -145,6 +145,7 @@ extern struct its_data its_data;
 
 extern int its_parse_baser(int i, struct its_baser *baser);
 extern void its_setup_baser(int i, struct its_baser *baser);
+extern void enable_lpi(u32 redist);
 
 
 #endif /* !__ASSEMBLY__ */
diff --git a/lib/arm/gic-v3-its.c b/lib/arm/gic-v3-its.c
index f577d5f..7c768a5 100644
--- a/lib/arm/gic-v3-its.c
+++ b/lib/arm/gic-v3-its.c
@@ -171,3 +171,18 @@ void init_cmd_queue(void)
 	writeq(0, its_data.base + GITS_CWRITER);
 	writeq(0, its_data.base + GITS_CREADR);
 }
+
+void enable_lpi(u32 redist)
+{
+	void *ptr;
+	u64 val;
+
+	if (redist >= gicv3_data.cpu_count)
+		report_abort("%s redist=%d >= cpu_count=%d\n",
+			     __func__, redist, gicv3_data.cpu_count);
+
+	ptr = gicv3_data.redist_base[redist];
+	val = readl(ptr + GICR_CTLR);
+	val |= GICR_CTLR_ENABLE_LPIS;
+	writel(val,  ptr + GICR_CTLR);
+}
-- 
2.5.5

WARNING: multiple messages have this Message-ID (diff)
From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
	kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
	qemu-devel@nongnu.org, qemu-arm@nongnu.org, drjones@redhat.com,
	marc.zyngier@arm.com, christoffer.dall@linaro.org
Cc: andre.przywara@arm.com, peter.maydell@linaro.org,
	alex.bennee@linaro.org, pbonzini@redhat.com
Subject: [Qemu-devel] [kvm-unit-tests RFC 08/15] arm/arm64: ITS: enable LPIs at re-distributor level
Date: Mon,  5 Dec 2016 22:46:39 +0100	[thread overview]
Message-ID: <1480974406-29345-9-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1480974406-29345-1-git-send-email-eric.auger@redhat.com>

This helper function enables the signaling of LPIs by the
redistributor to the connected PE.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 lib/arm/asm/gic-v3-its.h |  1 +
 lib/arm/gic-v3-its.c     | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/lib/arm/asm/gic-v3-its.h b/lib/arm/asm/gic-v3-its.h
index 21054cb..3e36a2a 100644
--- a/lib/arm/asm/gic-v3-its.h
+++ b/lib/arm/asm/gic-v3-its.h
@@ -145,6 +145,7 @@ extern struct its_data its_data;
 
 extern int its_parse_baser(int i, struct its_baser *baser);
 extern void its_setup_baser(int i, struct its_baser *baser);
+extern void enable_lpi(u32 redist);
 
 
 #endif /* !__ASSEMBLY__ */
diff --git a/lib/arm/gic-v3-its.c b/lib/arm/gic-v3-its.c
index f577d5f..7c768a5 100644
--- a/lib/arm/gic-v3-its.c
+++ b/lib/arm/gic-v3-its.c
@@ -171,3 +171,18 @@ void init_cmd_queue(void)
 	writeq(0, its_data.base + GITS_CWRITER);
 	writeq(0, its_data.base + GITS_CREADR);
 }
+
+void enable_lpi(u32 redist)
+{
+	void *ptr;
+	u64 val;
+
+	if (redist >= gicv3_data.cpu_count)
+		report_abort("%s redist=%d >= cpu_count=%d\n",
+			     __func__, redist, gicv3_data.cpu_count);
+
+	ptr = gicv3_data.redist_base[redist];
+	val = readl(ptr + GICR_CTLR);
+	val |= GICR_CTLR_ENABLE_LPIS;
+	writel(val,  ptr + GICR_CTLR);
+}
-- 
2.5.5

  parent reply	other threads:[~2016-12-05 21:46 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-05 21:46 [kvm-unit-tests RFC 00/15] arm/arm64: add ITS framework Eric Auger
2016-12-05 21:46 ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 01/15] libcflat: Add other size defines Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 02/15] arm/arm64: gicv3: Add some re-distributor defines Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 03/15] arm/arm64: ITS skeleton Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-06  9:23   ` Andrew Jones
2016-12-05 21:46 ` [kvm-unit-tests RFC 04/15] arm/arm64: ITS: BASER parsing and setup Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 05/15] arm/arm64: GICv3: add cpu count Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-06  9:29   ` Andrew Jones
2016-12-06  9:32     ` Andre Przywara
2016-12-06  9:32       ` Andre Przywara
2016-12-06 10:04       ` Auger Eric
2016-12-06 10:04         ` Auger Eric
2016-12-05 21:46 ` [kvm-unit-tests RFC 06/15] arm/arm64: ITS: Set the LPI config and pending tables Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 07/15] arm/arm64: ITS: Init the command queue Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` Eric Auger [this message]
2016-12-05 21:46   ` [Qemu-devel] [kvm-unit-tests RFC 08/15] arm/arm64: ITS: enable LPIs at re-distributor level Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 09/15] arm/arm64: ITS: Parse the typer register Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 10/15] arm/arm64: ITS: its_enable_defaults Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 11/15] arm/arm64: ITS: create device Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 12/15] arm/arm64: ITS: create collection Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 13/15] arm/arm64: ITS: commands Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 14/15] arm/arm64: gic: Generalize ipi_enable() Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-05 21:46 ` [kvm-unit-tests RFC 15/15] arm/arm64: ITS test Eric Auger
2016-12-05 21:46   ` [Qemu-devel] " Eric Auger
2016-12-06  9:48 ` [Qemu-devel] [kvm-unit-tests RFC 00/15] arm/arm64: add ITS framework Andrew Jones
2016-12-06  9:48   ` Andrew Jones
2016-12-06 11:14   ` Andre Przywara
2016-12-06 11:14     ` Andre Przywara
2016-12-06 11:21     ` Andrew Jones
2016-12-06 11:21       ` Andrew Jones

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