From: Ben Dooks <ben.dooks@codethink.co.uk>
To: "Pali Rohár" <pali.rohar@gmail.com>
Cc: "Dave Martin" <Dave.Martin@arm.com>,
tony@atomide.com, nm@ti.com, linux@arm.linux.org.uk,
aaro.koskinen@iki.fi, pdeschrijver@nvidia.com,
linux-kernel@vger.kernel.org,
"Ивайло Димитров" <freemangordon@abv.bg>,
santosh.shilimkar@ti.com, pavel@ucw.cz,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 1/2] ARM: OMAP: Add secure function omap_smc3() which calling instruction smc #1
Date: Tue, 08 Oct 2013 09:13:16 +0200 [thread overview]
Message-ID: <5253B08C.4020305@codethink.co.uk> (raw)
In-Reply-To: <201309080943.30542@pali>
On 08/09/13 09:43, Pali Rohár wrote:
> Here is new version (v4) of omap secure part patch:
>
> Other secure functions omap_smc1() and omap_smc2() calling instruction smc #0
> but Nokia RX-51 board needs to call smc #1 for PPA access.
>
> Signed-off-by: Ivaylo Dimitrov<freemangordon@abv.bg>
> Signed-off-by: Pali Rohár<pali.rohar@gmail.com>
> ---
> diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
> index 0e72917..c4586f4 100644
> --- a/arch/arm/mach-omap2/omap-secure.h
> +++ b/arch/arm/mach-omap2/omap-secure.h
> @@ -51,6 +51,7 @@
> extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
> u32 arg1, u32 arg2, u32 arg3, u32 arg4);
> extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
> +extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
> extern phys_addr_t omap_secure_ram_mempool_base(void);
> extern int omap_secure_ram_reserve_memblock(void);
>
> diff --git a/arch/arm/mach-omap2/omap-smc.S b/arch/arm/mach-omap2/omap-smc.S
> index f6441c1..fd90125 100644
> --- a/arch/arm/mach-omap2/omap-smc.S
> +++ b/arch/arm/mach-omap2/omap-smc.S
> @@ -1,9 +1,11 @@
> /*
> - * OMAP44xx secure APIs file.
> + * OMAP34xx and OMAP44xx secure APIs file.
> *
> * Copyright (C) 2010 Texas Instruments, Inc.
> * Written by Santosh Shilimkar<santosh.shilimkar@ti.com>
> *
> + * Copyright (C) 2012 Ivaylo Dimitrov<freemangordon@abv.bg>
> + * Copyright (C) 2013 Pali Rohár<pali.rohar@gmail.com>
> *
> * This program is free software,you can redistribute it and/or modify
> * it under the terms of the GNU General Public License version 2 as
> @@ -54,6 +56,23 @@ ENTRY(omap_smc2)
> ldmfd sp!, {r4-r12, pc}
> ENDPROC(omap_smc2)
>
> +/**
> + * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs)
> + * Low level common routine for secure HAL and PPA APIs via smc #1
> + * r0 - @service_id: Secure Service ID
> + * r1 - @process_id: Process ID
> + * r2 - @flag: Flag to indicate the criticality of operation
> + * r3 - @pargs: Physical address of parameter list
> + */
> +ENTRY(omap_smc3)
> + stmfd sp!, {r4-r11, lr}
> + mov r12, r0 @ Copy the secure service ID
I think you should save r12 in the call.
--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2013-10-08 7:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-04 12:43 [PATCH v3 1/2] ARM: OMAP: Add secure function omap_smc3() which calling instruction smc #1 Dave Martin
2013-09-08 7:43 ` [PATCH v4 " Pali Rohár
2013-09-14 9:37 ` Pali Rohár
2013-10-08 7:13 ` Ben Dooks [this message]
2013-10-08 8:09 ` Russell King - ARM Linux
2013-10-08 19:05 ` Tony Lindgren
-- strict thread matches above, loose matches on Subject: below --
2013-09-16 17:10 Dave Martin
2013-09-17 15:43 ` Tony Lindgren
2013-09-17 15:53 ` Pali Rohár
2013-09-17 23:17 ` Tony Lindgren
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5253B08C.4020305@codethink.co.uk \
--to=ben.dooks@codethink.co.uk \
--cc=Dave.Martin@arm.com \
--cc=aaro.koskinen@iki.fi \
--cc=freemangordon@abv.bg \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux@arm.linux.org.uk \
--cc=nm@ti.com \
--cc=pali.rohar@gmail.com \
--cc=pavel@ucw.cz \
--cc=pdeschrijver@nvidia.com \
--cc=santosh.shilimkar@ti.com \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).