[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <20231025065700.1556152-1-JESHWANTHKUMAR.NK@amd.com>
Date: Wed, 25 Oct 2023 12:26:57 +0530
From: jeshwank <JESHWANTHKUMAR.NK@....com>
To: <thomas.lendacky@....com>, <john.allen@....com>,
<herbert@...dor.apana.org.au>, <davem@...emloft.net>,
<jens.wiklander@...aro.org>, <sumit.garg@...aro.org>,
<jarkko.nikula@...ux.intel.com>, <mario.limonciello@....com>,
<linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<op-tee@...ts.trustedfirmware.org>
CC: <Mythri.Pandeshwarakrishna@....com>, <Devaraj.Rangasamy@....com>,
<Rijo-john.Thomas@....com>, <nimesh.easow@....com>,
<JESHWANTHKUMAR.NK@....com>
Subject: [PATCH 0/3] Introduce DMA APIs to allocate and free TEE shared memory
From: Jeshwanth Kumar N K <JESHWANTHKUMAR.NK@....com>
At present, the shared memory for TEE ring buffer, command buffer and
data buffer is allocated using get_free_pages(). The driver shares the
physical address of these buffers with PSP so that it can be mapped by
the Trusted OS.
In this patch series we have replaced get_free_pages() with
dma_alloc_coherent() to allocate shared memory to cleanup the existing
allocation method.
Rijo Thomas (3):
crypto: ccp - Add function to allocate and free memory using DMA APIs
crypto: ccp - Use psp_tee_alloc_buffer() and psp_tee_free_buffer()
tee: amdtee: Use psp_tee_alloc_buffer() and psp_tee_free_buffer()
drivers/crypto/ccp/psp-dev.c | 3 +
drivers/crypto/ccp/tee-dev.c | 119 ++++++++++++++++++----------
drivers/crypto/ccp/tee-dev.h | 11 +--
drivers/tee/amdtee/amdtee_private.h | 18 ++---
drivers/tee/amdtee/call.c | 74 ++++++++---------
drivers/tee/amdtee/core.c | 72 ++++++++++-------
drivers/tee/amdtee/shm_pool.c | 21 ++---
include/linux/psp-tee.h | 47 +++++++++++
8 files changed, 221 insertions(+), 144 deletions(-)
--
2.25.1
Powered by blists - more mailing lists