From: Shanker Donthineni <shankerd@codeaurora.org>
To: xen-devel <xen-devel@lists.xensource.com>,
Julien Grall <julien.grall@arm.com>,
Stefano Stabellini <sstabellini@kernel.org>
Cc: Philip Elcan <pelcan@codeaurora.org>,
Shanker Donthineni <shankerd@codeaurora.org>,
Vikram Sethi <vikrams@codeaurora.org>
Subject: [PATCH 0/8] Add support for parsing per CPU Redistributor entry
Date: Sat, 18 Jun 2016 18:45:13 -0500 [thread overview]
Message-ID: <1466293521-32746-1-git-send-email-shankerd@codeaurora.org> (raw)
The current driver doesn't support parsing Redistributor entries that
are described in the MADT GICC table. Not all the GIC implementors
places the Redistributor regions in the always-on power domain. On
systems, the UEFI firmware should describe Redistributor base address
in the associated GIC CPU Interface (GICC) instead of GIC Redistributor
(GICR) table.
The maximum number of mmio handlers and struct vgic_rdist_region
that holds Redistributor addresses are allocated through a static
array with hardcoded size. I don't think this is the right approach
and is not scalable for implementing features like this. I have
decided to convert static to dynamic allocation based on comments
from the below link.
https://patchwork.kernel.org/patch/9163435/
Patches #1, #2 and #3 adds support for parsing not always-on power
domain Redistributor regions.
Patches #4, #5, #6, #7 and #8 refactors the code and allocates the
memory for mmio handlers and vgic_rdist_region based on the number of
Redistributors required for dom0/domU instead of hardcoded values.
This pacthset is created on tip of Julien's branch http://xenbits.xen.org/gitweb/?p=people/julieng/xen-unstable.git;a=shortlog;h=refs/heads/irq-routing-acpi-rfc
Shanker Donthineni (8):
arm/gic-v3: Add a separate function for mapping GICD region
arm/gic-v3: Fold GICR subtable parsing into a new function
arm/gic-v3: Parse per-cpu redistributor entry in GICC subtable
xen/arm: vgic: Use dynamic memory allocation for vgic_rdist_region
arm/gic-v3: Remove an unused macro MAX_RDIST_COUNT
arm: vgic: Split vgic_domain_init() functionality into two functions
arm/mmio: Use separate memory allocation for mmio handlers
arm/vgic: Change fixed number of mmio handlers to variable number
xen/arch/arm/domain.c | 12 ++-
xen/arch/arm/gic-v3.c | 162 ++++++++++++++++++++++++++++----------
xen/arch/arm/io.c | 14 +++-
xen/arch/arm/vgic-v2.c | 16 +++-
xen/arch/arm/vgic-v3.c | 65 ++++++++++-----
xen/arch/arm/vgic.c | 7 ++
xen/include/asm-arm/domain.h | 13 +--
xen/include/asm-arm/gic.h | 3 +-
xen/include/asm-arm/gic_v3_defs.h | 1 +
xen/include/asm-arm/mmio.h | 6 +-
xen/include/asm-arm/vgic.h | 5 ++
11 files changed, 226 insertions(+), 78 deletions(-)
--
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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next reply other threads:[~2016-06-18 23:45 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-18 23:45 Shanker Donthineni [this message]
2016-06-18 23:45 ` [PATCH 1/8] arm/gic-v3: Add a separate function for mapping GICD region Shanker Donthineni
2016-06-21 9:42 ` Julien Grall
2016-06-18 23:45 ` [PATCH 2/8] arm/gic-v3: Fold GICR subtable parsing into a new function Shanker Donthineni
2016-06-21 10:17 ` Julien Grall
2016-06-21 14:02 ` Shanker Donthineni
2016-06-18 23:45 ` [PATCH 3/8] arm/gic-v3: Parse per-cpu redistributor entry in GICC subtable Shanker Donthineni
2016-06-21 10:16 ` Julien Grall
2016-06-21 13:52 ` Shanker Donthineni
2016-06-22 13:06 ` Julien Grall
2016-06-18 23:45 ` [PATCH 4/8] xen/arm: vgic: Use dynamic memory allocation for vgic_rdist_region Shanker Donthineni
2016-06-21 10:26 ` Julien Grall
2016-06-18 23:45 ` [PATCH 5/8] arm/gic-v3: Remove an unused macro MAX_RDIST_COUNT Shanker Donthineni
2016-06-18 23:45 ` [PATCH 6/8] arm: vgic: Split vgic_domain_init() functionality into two functions Shanker Donthineni
2016-06-21 10:49 ` Julien Grall
2016-06-21 14:36 ` Shanker Donthineni
2016-06-21 14:48 ` Julien Grall
2016-06-21 15:09 ` Shanker Donthineni
2016-06-18 23:45 ` [PATCH 7/8] arm/mmio: Use separate memory allocation for mmio handlers Shanker Donthineni
2016-06-18 23:45 ` [PATCH 8/8] arm/vgic: Change fixed number of mmio handlers to variable number Shanker Donthineni
2016-06-21 9:28 ` [PATCH 0/8] Add support for parsing per CPU Redistributor entry Julien Grall
2016-06-21 13:37 ` Shanker Donthineni
2016-06-21 13:50 ` Julien Grall
2016-06-21 14:16 ` Shanker Donthineni
2016-06-21 14:44 ` Julien Grall
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