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From: Atish Patra <atish.patra@wdc.com>
To: linux-kernel@vger.kernel.org
Cc: Albert Ou <aou@eecs.berkeley.edu>,
	Alexios Zavras <alexios.zavras@intel.com>,
	Anup Patel <anup@brainfault.org>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Atish Patra <atish.patra@wdc.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	linux-riscv@lists.infradead.org,
	Thomas Gleixner <tglx@linutronix.de>, Mao Han <han_mao@c-sky.com>
Subject: [PATCH v5 0/4] Add support for SBI v0.2 
Date: Tue, 26 Nov 2019 11:04:59 -0800
Message-ID: <20191126190503.19303-1-atish.patra@wdc.com> (raw)

The Supervisor Binary Interface(SBI) specification[1] now defines a
base extension that provides extendability to add future extensions
while maintaining backward compatibility with previous versions.
The new version is defined as 0.2 and older version is marked as 0.1.

This series adds support v0.2 and a unified calling convention
implementation between 0.1 and 0.2. It also add other SBI v0.2
functionality defined in [2]. The base support for SBI v0.2 is already
available in OpenSBI v0.5. This series needs additional patches[3] in
OpenSBI. 

Tested on both BBL, OpenSBI with/without the above patch series. 

[1] https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc
[2] https://github.com/riscv/riscv-sbi-doc/pull/27
[3] http://lists.infradead.org/pipermail/opensbi/2019-November/000738.html

Changes from v4->v5
1. Fixed few minor comments related to static & inline.
2. Make sure that every patch is boot tested individually.

Changes from v3->v4.
1. Rebased on top of for-next.
2. Fixed issuses with checkpatch --strict.
3. Unfied all IPI/fence related functions.
4. Added Hfence related SBI calls.
5. Moved to function pointer based boot time switch between v01 and v02 calls.
Changes from v2->v3.
1. Moved v0.1 extensions to a new config.
2. Added support for relacement extensions of v0.1 extensions.

Changes from v1->v2
1. Removed the legacy calling convention.
2. Moved all SBI related calls to sbi.c.
3. Moved all SBI related macros to uapi.

Atish Patra (4):
RISC-V: Mark existing SBI as 0.1 SBI.
RISC-V: Add basic support for SBI v0.2
RISC-V: Introduce a new config for SBI v0.1
RISC-V: Implement new SBI v0.2 extensions

arch/riscv/Kconfig           |   6 +
arch/riscv/include/asm/sbi.h | 177 +++++++-----
arch/riscv/kernel/Makefile   |   1 +
arch/riscv/kernel/sbi.c      | 547 ++++++++++++++++++++++++++++++++++-
arch/riscv/kernel/setup.c    |   2 +
5 files changed, 660 insertions(+), 73 deletions(-)

--
2.23.0


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Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-26 19:04 Atish Patra [this message]
2019-11-26 19:05 ` [PATCH v5 1/4] RISC-V: Mark existing SBI as 0.1 SBI Atish Patra
2019-12-02 23:59   ` Palmer Dabbelt
2019-11-26 19:05 ` [PATCH v5 2/4] RISC-V: Add basic support for SBI v0.2 Atish Patra
2019-12-03 21:17   ` Palmer Dabbelt
2019-11-26 19:05 ` [PATCH v5 3/4] RISC-V: Introduce a new config for SBI v0.1 Atish Patra
2019-12-04 18:52   ` Palmer Dabbelt
2019-12-04 22:03     ` Atish Patra
2019-11-26 19:05 ` [PATCH v5 4/4] RISC-V: Implement new SBI v0.2 extensions Atish Patra
2019-11-29  4:51   ` Anup Patel
2019-11-29  4:57     ` Anup Patel
2019-12-04 21:10       ` Atish Patra
2019-12-04 18:52   ` Palmer Dabbelt
2019-12-04 22:04     ` Atish Patra
2019-12-04 18:56 ` [PATCH v5 0/4] Add support for SBI v0.2 Palmer Dabbelt

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