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From: jens.wiklander@linaro.org (Jens Wiklander)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v11 2/4] tee: generic TEE subsystem
Date: Wed, 31 Aug 2016 14:47:45 +0200	[thread overview]
Message-ID: <20160831124744.GA25472@ermac> (raw)
In-Reply-To: <e08f821b-bf7c-be65-59a5-281aa3343cf4@ti.com>

On Tue, Aug 30, 2016 at 02:29:45PM -0500, Andrew F. Davis wrote:
> On 08/22/2016 08:00 AM, Jens Wiklander wrote:
> > +/*
> > + * Unprivileged devices in the in the lower half range and privileged
> 
>                                 ^^ in the in the
> [snip]
> 
> > +
> > +	rc = alloc_chrdev_region(&tee_devt, 0, TEE_NUM_DEVICES, "tee");
> > +	if (rc < 0) {
> 
> if (rc) ?
> 
> [snip]
> 
> > + * Memory allocated as global shared memory is automatically freed when the
> > + * TEE file pointer is closed. The @flags field uses the bits defined by
> > + * TEE_SHM_* above. TEE_SHM_MAPPED must currently always be set. If
> 
>              ^^^ not really above anymore, out of file now looks like
> 
> > + * TEE_SHM_DMA_BUF global shared memory will be allocated and associated
> > + * with a dma-buf handle, else driver private memory.
> > + *
> > + * @returns a pointer to 'struct tee_shm'
> 
> Doesn't say anything, is this really needed?
> 
> [snip]
> 
> > +/**
> > + * struct tee_shm_pool_mem_info - holds information needed to create a shared
> > + * memory pool
> > + * @vaddr:	Virtual address of start of pool
> > + * @paddr:	Physical address of start of pool
> > + * @size:	Size in bytes of the pool
> > + */
> > +struct tee_shm_pool_mem_info {
> > +	unsigned long vaddr;
> > +	unsigned long paddr;
> 
> phys_addr_t paddr; ?

Thanks for taking the time to review this. I'll address all your
comments here in the next version of the patch set.

--
Jens

WARNING: multiple messages have this Message-ID (diff)
From: Jens Wiklander <jens.wiklander@linaro.org>
To: "Andrew F. Davis" <afd@ti.com>
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Al Viro <viro@ZenIV.linux.org.uk>,
	valentin.manea@huawei.com, jean-michel.delorme@st.com,
	emmanuel.michel@st.com, javier@javigon.com,
	Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Michal Simek <michal.simek@xilinx.com>,
	Rob Herring <robh+dt@kernel.org>,
	Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>,
	Nishanth Menon <nm@ti.com>
Subject: Re: [PATCH v11 2/4] tee: generic TEE subsystem
Date: Wed, 31 Aug 2016 14:47:45 +0200	[thread overview]
Message-ID: <20160831124744.GA25472@ermac> (raw)
In-Reply-To: <e08f821b-bf7c-be65-59a5-281aa3343cf4@ti.com>

On Tue, Aug 30, 2016 at 02:29:45PM -0500, Andrew F. Davis wrote:
> On 08/22/2016 08:00 AM, Jens Wiklander wrote:
> > +/*
> > + * Unprivileged devices in the in the lower half range and privileged
> 
>                                 ^^ in the in the
> [snip]
> 
> > +
> > +	rc = alloc_chrdev_region(&tee_devt, 0, TEE_NUM_DEVICES, "tee");
> > +	if (rc < 0) {
> 
> if (rc) ?
> 
> [snip]
> 
> > + * Memory allocated as global shared memory is automatically freed when the
> > + * TEE file pointer is closed. The @flags field uses the bits defined by
> > + * TEE_SHM_* above. TEE_SHM_MAPPED must currently always be set. If
> 
>              ^^^ not really above anymore, out of file now looks like
> 
> > + * TEE_SHM_DMA_BUF global shared memory will be allocated and associated
> > + * with a dma-buf handle, else driver private memory.
> > + *
> > + * @returns a pointer to 'struct tee_shm'
> 
> Doesn't say anything, is this really needed?
> 
> [snip]
> 
> > +/**
> > + * struct tee_shm_pool_mem_info - holds information needed to create a shared
> > + * memory pool
> > + * @vaddr:	Virtual address of start of pool
> > + * @paddr:	Physical address of start of pool
> > + * @size:	Size in bytes of the pool
> > + */
> > +struct tee_shm_pool_mem_info {
> > +	unsigned long vaddr;
> > +	unsigned long paddr;
> 
> phys_addr_t paddr; ?

Thanks for taking the time to review this. I'll address all your
comments here in the next version of the patch set.

--
Jens

  reply	other threads:[~2016-08-31 12:47 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-22 13:00 [PATCH v11 0/4] generic TEE subsystem Jens Wiklander
2016-08-22 13:00 ` Jens Wiklander
2016-08-22 13:00 ` [PATCH v11 1/4] dt/bindings: add bindings for optee Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander
2016-08-22 13:00 ` [PATCH v11 2/4] tee: generic TEE subsystem Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander
2016-08-30 19:29   ` Andrew F. Davis
2016-08-30 19:29     ` Andrew F. Davis
2016-08-30 19:29     ` Andrew F. Davis
2016-08-31 12:47     ` Jens Wiklander [this message]
2016-08-31 12:47       ` Jens Wiklander
2016-08-22 13:00 ` [PATCH v11 3/4] tee: add OP-TEE driver Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander
2016-08-23  8:38   ` Jérôme Forissier
2016-08-23  8:38     ` Jérôme Forissier
2016-08-23  8:38     ` Jérôme Forissier
2016-08-30 20:23   ` Andrew F. Davis
2016-08-30 20:23     ` Andrew F. Davis
2016-08-30 20:23     ` Andrew F. Davis
2016-08-31 13:50     ` Jens Wiklander
2016-08-31 13:50       ` Jens Wiklander
2016-08-31 13:50       ` Jens Wiklander
2016-08-31 16:40       ` Andrew F. Davis
2016-08-31 16:40         ` Andrew F. Davis
2016-08-31 16:40         ` Andrew F. Davis
2016-09-01  9:22         ` Jens Wiklander
2016-09-01  9:22           ` Jens Wiklander
2016-09-01 18:06           ` Andrew F. Davis
2016-09-01 18:06             ` Andrew F. Davis
2016-09-01 18:06             ` Andrew F. Davis
2016-09-02 10:49             ` Jens Wiklander
2016-09-02 10:49               ` Jens Wiklander
2016-09-02 10:49               ` Jens Wiklander
2016-09-02 13:56               ` Andrew F. Davis
2016-09-02 13:56                 ` Andrew F. Davis
2016-09-02 13:56                 ` Andrew F. Davis
2016-08-31 17:02   ` Volodymyr Babchuk
2016-08-31 17:02     ` Volodymyr Babchuk
2016-08-31 17:02     ` Volodymyr Babchuk
2016-09-07  7:49   ` Zeng Tao
2016-09-07  7:49     ` Zeng Tao
2016-09-07  7:49     ` Zeng Tao
2016-09-07  9:18     ` Jens Wiklander
2016-09-07  9:18       ` Jens Wiklander
2016-08-22 13:00 ` [PATCH v11 4/4] Documentation: tee subsystem and op-tee driver Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander
2016-08-22 13:00   ` Jens Wiklander

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