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From: Marc Zyngier <marc.zyngier@arm.com>
To: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu
Cc: Christoffer Dall <christoffer.dall@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Eric Auger <eric.auger@redhat.com>
Subject: [RFC PATCH 04/33] irqchip/gic-v3-its: Move LPI definitions around
Date: Tue, 17 Jan 2017 10:20:25 +0000	[thread overview]
Message-ID: <1484648454-21216-5-git-send-email-marc.zyngier@arm.com> (raw)
In-Reply-To: <1484648454-21216-1-git-send-email-marc.zyngier@arm.com>

The various LPI definitions are in the middle of the code, and
would be better placed at the beginning, given that we're going
to use some of them much earlier.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 drivers/irqchip/irq-gic-v3-its.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 49b681e..2ca27f6 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -49,6 +49,21 @@
 #define RDIST_FLAGS_PROPBASE_NEEDS_FLUSHING	(1 << 0)
 
 /*
+ * We allocate 64kB for PROPBASE. That gives us at most 64K LPIs to
+ * deal with (one configuration byte per interrupt). PENDBASE has to
+ * be 64kB aligned (one bit per LPI, plus 8192 bits for SPI/PPI/SGI).
+ */
+#define LPI_PROPBASE_SZ		SZ_64K
+#define LPI_PENDBASE_SZ		(LPI_PROPBASE_SZ / 8 + SZ_1K)
+
+/*
+ * This is how many bits of ID we need, including the useless ones.
+ */
+#define LPI_NRBITS		ilog2(LPI_PROPBASE_SZ + SZ_8K)
+
+#define LPI_PROP_DEFAULT_PRIO	0xa0
+
+/*
  * Collection structure - just an ID, and a redistributor address to
  * ping. We use one per CPU as a bag of interrupts assigned to this
  * CPU.
@@ -779,20 +794,8 @@ static void its_lpi_free(struct event_lpi_map *map)
 	kfree(map->col_map);
 }
 
-/*
- * We allocate 64kB for PROPBASE. That gives us at most 64K LPIs to
- * deal with (one configuration byte per interrupt). PENDBASE has to
- * be 64kB aligned (one bit per LPI, plus 8192 bits for SPI/PPI/SGI).
- */
-#define LPI_PROPBASE_SZ		SZ_64K
-#define LPI_PENDBASE_SZ		(LPI_PROPBASE_SZ / 8 + SZ_1K)
 
-/*
- * This is how many bits of ID we need, including the useless ones.
- */
-#define LPI_NRBITS		ilog2(LPI_PROPBASE_SZ + SZ_8K)
 
-#define LPI_PROP_DEFAULT_PRIO	0xa0
 
 static int __init its_alloc_lpi_tables(void)
 {
-- 
2.1.4

  parent reply	other threads:[~2017-01-17 10:21 UTC|newest]

Thread overview: 121+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-17 10:20 [RFC PATCH 00/33] irqchip: Core support for GICv4 Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 01/33] irqchip/gic-v3: Add redistributor iterator Marc Zyngier
2017-02-13  9:39   ` Thomas Gleixner
2017-02-13 21:12   ` Shanker Donthineni
2017-02-16 12:47   ` Auger Eric
2017-06-19 15:26     ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 02/33] irqchip/gic-v3: Add VLPI/DirectLPI discovery Marc Zyngier
2017-02-13  9:39   ` Thomas Gleixner
2017-02-13 21:39   ` Shanker Donthineni
2017-02-16 13:19   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 03/33] irqchip/gic-v3-its: Refactor command encoding Marc Zyngier
2017-02-13  9:54   ` Thomas Gleixner
2017-02-16 13:19   ` Auger Eric
2017-01-17 10:20 ` Marc Zyngier [this message]
2017-02-13  9:55   ` [RFC PATCH 04/33] irqchip/gic-v3-its: Move LPI definitions around Thomas Gleixner
2017-02-16 13:22   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 05/33] irqchip/gic-v3-its: Zero command on allocation Marc Zyngier
2017-02-13  9:55   ` Thomas Gleixner
2017-01-17 10:20 ` [RFC PATCH 06/33] irqchip/gic-v3-its: Add probing for VLPI properties Marc Zyngier
2017-02-13 10:00   ` Thomas Gleixner
2017-02-16 13:46     ` Auger Eric
2017-02-13 21:58   ` Shanker Donthineni
2017-01-17 10:20 ` [RFC PATCH 07/33] irqchip/gic-v3-its: Macro-ize its_send_single_command Marc Zyngier
2017-02-13 10:24   ` Thomas Gleixner
2017-02-16 14:59   ` Auger Eric
2017-02-17  6:15   ` Auger Eric
2017-06-19 15:38     ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 08/33] irqchip/gic-v3-its: Implement irq_set_irqchip_state for pending state Marc Zyngier
2017-02-13 10:28   ` Thomas Gleixner
2017-02-16 14:59   ` Auger Eric
2017-02-17  6:15   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 09/33] irqchip/gic-v3-its: Split out property table allocation Marc Zyngier
2017-02-13 10:28   ` Thomas Gleixner
2017-02-17  6:15   ` Auger Eric
2017-06-19 15:42     ` Marc Zyngier
2017-02-17 20:40   ` Prakash B
2017-01-17 10:20 ` [RFC PATCH 10/33] irqchip/gic-v4-its: Allow use of indirect VCPU tables Marc Zyngier
2017-02-13 10:28   ` Thomas Gleixner
2017-02-13 22:14   ` Shanker Donthineni
2017-06-19 14:47     ` Marc Zyngier
2017-02-17  6:15   ` Auger Eric
2017-03-16 21:50   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 11/33] irqchip/gic-v3-its: Split out pending table allocation Marc Zyngier
2017-02-13 10:29   ` Thomas Gleixner
2017-02-13 22:31   ` Shanker Donthineni
2017-03-16  8:57   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 12/33] irqchip/gic-v3-its: Rework LPI freeing Marc Zyngier
2017-02-13 10:30   ` Thomas Gleixner
2017-03-16  8:57   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 13/33] irqchip/gic-v3-its: Generalize device table allocation Marc Zyngier
2017-02-13 10:31   ` Thomas Gleixner
2017-03-16  8:57   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 14/33] irqchip/gic-v3-its: Generalize LPI configuration Marc Zyngier
2017-02-13 10:32   ` Thomas Gleixner
2017-03-16  8:57   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 15/33] irqchip/gic-v4: Add management structure definitions Marc Zyngier
2017-02-13 10:33   ` Thomas Gleixner
2017-03-16  8:58   ` Auger Eric
2017-06-19 15:48     ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 16/33] irqchip/gic-v3-its: Add GICv4 ITS command definitions Marc Zyngier
2017-02-13 10:34   ` Thomas Gleixner
2017-03-16  8:58   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 17/33] irqchip/gic-v3-its: Add VLPI configuration hook Marc Zyngier
2017-02-13 10:37   ` Thomas Gleixner
2017-02-13 23:07   ` Shanker Donthineni
2017-06-19 14:52     ` Marc Zyngier
2017-03-16  8:59   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 18/33] irqchip/gic-v3-its: Add VLPI map/unmap operations Marc Zyngier
2017-03-16  8:59   ` Auger Eric
2017-06-19 13:08     ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 19/33] irqchip/gic-v3-its: Add VLPI configuration handling Marc Zyngier
2017-02-13 10:38   ` Thomas Gleixner
2017-03-16  8:59   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 20/33] irqchip/gic-v3-its: Add VPE domain infrastructure Marc Zyngier
2017-02-13 10:40   ` Thomas Gleixner
2017-06-19 13:54     ` Marc Zyngier
2017-03-16  9:18   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 21/33] irqchip/gic-v3-its: Add VPE irq domain allocation/teardown Marc Zyngier
2017-02-13 10:45   ` Thomas Gleixner
2017-02-13 23:25   ` Shanker Donthineni
2017-03-16  9:27   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 22/33] irqchip/gic-v3-its: Add VPE irq domain [de]activation Marc Zyngier
2017-02-13 10:45   ` Thomas Gleixner
2017-01-17 10:20 ` [RFC PATCH 23/33] irqchip/gic-v3-its: Add VPENDBASER/VPROPBASER accessors Marc Zyngier
2017-02-13 10:46   ` Thomas Gleixner
2017-02-13 23:39   ` Shanker Donthineni
2017-06-19 15:03     ` Marc Zyngier
2017-03-16 21:03   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 24/33] irqchip/gic-v3-its: Add VPE scheduling Marc Zyngier
2017-02-13 10:48   ` Thomas Gleixner
2017-02-14  0:13   ` Shanker Donthineni
2017-06-19 15:23     ` Marc Zyngier
2017-02-14  1:24   ` Shanker Donthineni
2017-03-16 21:23   ` Auger Eric
2017-03-16 21:41     ` Shanker Donthineni
2017-06-19  9:34       ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 25/33] irqchip/gic-v3-its: Add VPE invalidation hook Marc Zyngier
2017-02-13 10:48   ` Thomas Gleixner
2017-01-17 10:20 ` [RFC PATCH 26/33] irqchip/gic-v3-its: Add VPE affinity changes Marc Zyngier
2017-02-13 10:56   ` Thomas Gleixner
2017-01-17 10:20 ` [RFC PATCH 27/33] irqchip/gic-v3-its: Add VPE interrupt masking Marc Zyngier
2017-02-13 10:57   ` Thomas Gleixner
2017-03-16 21:58   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 28/33] irqchip/gic-v3-its: Support VPE doorbell invalidation even when !DirectLPI Marc Zyngier
2017-02-13 11:15   ` Thomas Gleixner
2017-02-14  0:44   ` Shanker Donthineni
2017-06-19 13:31     ` Marc Zyngier
2017-01-17 10:20 ` [RFC PATCH 29/33] irqchip/gic-v4: Add per-VM VPE domain creation Marc Zyngier
2017-02-13 11:16   ` Thomas Gleixner
2017-01-17 10:20 ` [RFC PATCH 30/33] irqchip/gic-v4: Add VPE command interface Marc Zyngier
2017-02-13 11:16   ` Thomas Gleixner
2017-03-16 21:17   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 31/33] irqchip/gic-v4: Add VLPI configuration interface Marc Zyngier
2017-02-13 11:17   ` Thomas Gleixner
2017-03-16 21:08   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 32/33] irqchip/gic-v4: Add some basic documentation Marc Zyngier
2017-02-13 11:17   ` Thomas Gleixner
2017-03-16 21:02   ` Auger Eric
2017-01-17 10:20 ` [RFC PATCH 33/33] irqchip/gic-v4: Enable low-level GICv4 operations Marc Zyngier
2017-02-13 11:17   ` Thomas Gleixner
2017-02-13 11:19 ` [RFC PATCH 00/33] irqchip: Core support for GICv4 Thomas Gleixner

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