linux-kernel - [PATCH v9 0/3] crypto: Add EIP-93 crypto engine support

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Message-ID: <20241214132808.19449-1-ansuelsmth@gmail.com>
Date: Sat, 14 Dec 2024 14:27:51 +0100
From: Christian Marangi <ansuelsmth@...il.com>
To: Christian Marangi <ansuelsmth@...il.com>,
	Herbert Xu <herbert@...dor.apana.org.au>,
	"David S. Miller" <davem@...emloft.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Antoine Tenart <atenart@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <ndesaulniers@...gle.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>,
	linux-crypto@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	llvm@...ts.linux.dev,
	upstream@...oha.com
Subject: [PATCH v9 0/3] crypto: Add EIP-93 crypto engine support

This small series add support for the Inside Secure EIP-93.
This is a predecessor of the current supported EIP197. It doesn't
require a firmware but instead it's embedded in the SoC.

First patch extend guard for spinlock_bh.

The other actually implement Documentation and Driver.

The Driver pass all the normal selft test for the supported
algo and also pass the EXTRA test with fuzz_iterations set to 10000.

Changes v9:
- Rework hash code to alloc DMA only when needed
- Rework hash code to only alloc needed blocks and use
  local struct in req for everything else
- Rework hash code to use GFP_ATOMIC
- Simplify hash update function
- Generalize hmac key set function
Changes v8:
- Rework export and update to not sleep on exporting state
  (consume pending packet in update and return -EINPROGRESS)
Changes v7:
- Fix copypaste error in __eip93_hash_init
- Rework import/export to actually export the partial hash
  (we actually unmap DMA on export)
- Rename no_finalize variable to better partial_hash
- Rename 3rd commit title and drop Mediatek from title.
- Add Cover Letter
- Add Reviewed-by to DT commit
(cumulative changes from old series that had changelog in each patch)
Changes v6:
- Add SoC specific compatible
- Add now supported entry for compatible with no user
Changes v5:
- Add Ack tag to guard patch
- Comment out compatible with no current user
- Fix smatch warning (reported by Dan Carpenter)
Changes v4:
- Out of RFC
- Add missing bitfield.h
- Drop useless header
Changes v3:
- Mute warning from Clang about C23
- Fix not inizialized err
- Drop unused variable
- Add SoC compatible with generic one
Changes v2:
- Rename all variables from mtk to eip93
- Move to inside-secure directory
- Check DMA map errors
- Use guard API for spinlock
- Minor improvements to code
- Add guard patch
- Change to better compatible
- Add description for EIP93 models

Christian Marangi (3):
  spinlock: extend guard with spinlock_bh variants
  dt-bindings: crypto: Add Inside Secure SafeXcel EIP-93 crypto engine
  crypto: Add Inside Secure SafeXcel EIP-93 crypto engine support

 .../crypto/inside-secure,safexcel-eip93.yaml  |  67 ++
 MAINTAINERS                                   |   7 +
 drivers/crypto/Kconfig                        |   1 +
 drivers/crypto/Makefile                       |   1 +
 drivers/crypto/inside-secure/eip93/Kconfig    |  20 +
 drivers/crypto/inside-secure/eip93/Makefile   |   5 +
 .../crypto/inside-secure/eip93/eip93-aead.c   | 711 ++++++++++++++
 .../crypto/inside-secure/eip93/eip93-aead.h   |  38 +
 .../crypto/inside-secure/eip93/eip93-aes.h    |  16 +
 .../crypto/inside-secure/eip93/eip93-cipher.c | 413 +++++++++
 .../crypto/inside-secure/eip93/eip93-cipher.h |  60 ++
 .../crypto/inside-secure/eip93/eip93-common.c | 816 +++++++++++++++++
 .../crypto/inside-secure/eip93/eip93-common.h |  24 +
 .../crypto/inside-secure/eip93/eip93-des.h    |  16 +
 .../crypto/inside-secure/eip93/eip93-hash.c   | 866 ++++++++++++++++++
 .../crypto/inside-secure/eip93/eip93-hash.h   |  82 ++
 .../crypto/inside-secure/eip93/eip93-main.c   | 502 ++++++++++
 .../crypto/inside-secure/eip93/eip93-main.h   | 152 +++
 .../crypto/inside-secure/eip93/eip93-regs.h   | 335 +++++++
 include/linux/spinlock.h                      |  13 +
 20 files changed, 4145 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml
 create mode 100644 drivers/crypto/inside-secure/eip93/Kconfig
 create mode 100644 drivers/crypto/inside-secure/eip93/Makefile
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-aead.c
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-aead.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-aes.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-cipher.c
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-cipher.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-common.c
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-common.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-des.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-hash.c
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-hash.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-main.c
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-main.h
 create mode 100644 drivers/crypto/inside-secure/eip93/eip93-regs.h

-- 
2.45.2