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From: santosh.shilimkar@ti.com (Santosh)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/25] OMAP: Add support to allocate the memory for secure RAM
Date: Fri, 09 Sep 2011 15:13:23 +0530	[thread overview]
Message-ID: <4E69DFBB.9020803@ti.com> (raw)
In-Reply-To: <CAORVsuV8+zMzwT+PeWTo6TgWeEYfcSQdjY_kv4FcURohVoT=hw@mail.gmail.com>

On Friday 09 September 2011 12:49 AM, Jean Pihet wrote:
> On Sun, Sep 4, 2011 at 3:54 PM, Santosh Shilimkar
> <santosh.shilimkar@ti.com>  wrote:
>> Allocate the memory to save secure ram context which needs
>> to be done when MPU is hitting off mode.
>>
>> The ROM code expects a physical address to this memory
>> and hence use memblock APIs to reserve this memory as part
>> of .reserve() callback.
>>
>> Maximum possible size is allocated and can cater to OMAP3XXX / OMAP4XXX
>> secure RAM size requirements.
>>
>> Signed-off-by: Santosh Shilimkar<santosh.shilimkar@ti.com>
>> ---
>>   arch/arm/mach-omap2/include/mach/omap-secure.h |    4 +++
>>   arch/arm/mach-omap2/omap-secure.c              |   29 ++++++++++++++++++++++++
>>   arch/arm/plat-omap/common.c                    |    3 ++
>>   3 files changed, 36 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-omap2/include/mach/omap-secure.h b/arch/arm/mach-omap2/include/mach/omap-secure.h
>> index 26e7bcc..e2f95a0 100644
>> --- a/arch/arm/mach-omap2/include/mach/omap-secure.h
>> +++ b/arch/arm/mach-omap2/include/mach/omap-secure.h
>> @@ -26,6 +26,8 @@
>>   #define FLAG_FIQ_ENABLE                        0x1
>>   #define NO_FLAG                                0x0
>>
>> +/* Maximum Secure memory storage size */
>> +#define OMAP_SECURE_RAM_STORAGE        (88 * SZ_1K)
> Is this valid for all supported devices? How to differentiate
> variations in the size for new chips variants in the future?
>
You don't have to. ROM code does that job. We should just ensure
that maximum needed memory is made available to secure code.

Regards
Santosh

  reply	other threads:[~2011-09-09  9:43 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-04 13:54 [PATCH 00/25] OMAP4: PM: suspend, CPU-hotplug and CPUilde support Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 01/25] ARM: mm: Add strongly ordered descriptor support Santosh Shilimkar
2011-09-13 20:23   ` Tony Lindgren
2011-09-14  5:36     ` Shilimkar, Santosh
2011-09-04 13:54 ` [PATCH 02/25] OMAP4: Redefine mandatory barriers for OMAP to include interconnect barriers Santosh Shilimkar
2011-09-13 20:27   ` Tony Lindgren
2011-09-14  5:39     ` Shilimkar, Santosh
2011-09-14 10:24     ` Santosh
2011-09-15 17:17       ` Kevin Hilman
2011-09-15 17:24         ` Shilimkar, Santosh
2011-09-15 17:53           ` Tony Lindgren
2011-09-15 18:22             ` Shilimkar, Santosh
2011-09-15 19:43               ` Tony Lindgren
2011-09-15 20:00                 ` Shilimkar, Santosh
2011-09-16 12:01                   ` Shilimkar, Santosh
2011-09-04 13:54 ` [PATCH 03/25] OMAP4: PM: Use custom omap_do_wfi() for suspend and default idle Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 04/25] OMAP4: Remove un-used do_wfi() macro Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 05/25] OMAP4: Use WARN_ON() instead of BUG_ON() with graceful exit Santosh Shilimkar
2011-09-05 10:11   ` Sergei Shtylyov
2011-09-05 10:42     ` Santosh
2011-09-05 10:47       ` Russell King - ARM Linux
2011-09-05 10:51         ` Santosh
2011-09-08 18:51           ` Jean Pihet
2011-09-04 13:54 ` [PATCH 06/25] OMAP4: Export omap4_get_base*() rather than global address pointers Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 07/25] OMAP4: PM: Add SAR RAM support Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 08/25] OMAP4: PM: Keep static dep between MPUSS-EMIF and MPUSS-L3 and DUCATI-L3 Santosh Shilimkar
2011-09-08 18:06   ` Kevin Hilman
2011-09-09  4:21     ` Santosh
2011-09-04 13:54 ` [PATCH 09/25] OMAP4: PM: Avoid omap4_pm_init() on OMAP4430 ES1.0 Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 10/25] OMAP4: PM: Initialise all the clockdomains to supported states Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 11/25] OMAP: Add Secure HAL and monitor mode API infrastructure Santosh Shilimkar
2011-09-08 18:58   ` Jean Pihet
2011-09-09  4:22     ` Santosh
2011-09-04 13:54 ` [PATCH 12/25] OMAP: Add support to allocate the memory for secure RAM Santosh Shilimkar
2011-09-08 19:19   ` Jean Pihet
2011-09-09  9:43     ` Santosh [this message]
2011-09-09 12:54       ` Jean Pihet
2011-09-09 14:09         ` Shilimkar, Santosh
2011-09-04 13:54 ` [PATCH 13/25] OMAP4: PM: Add WakeupGen module as OMAP gic_arch_extn Santosh Shilimkar
2011-09-08 18:27   ` Kevin Hilman
2011-09-09  4:29     ` Santosh
2011-09-09  7:19       ` Thomas Gleixner
2011-09-09  8:07         ` Santosh
2011-09-09  8:18           ` Thomas Gleixner
2011-09-09  9:05             ` Santosh
2011-09-12  7:56               ` Thomas Gleixner
2011-09-12  8:44                 ` Santosh
2011-09-08 19:16   ` Jean Pihet
2011-09-09  4:23     ` Santosh
2011-09-13 20:36   ` Tony Lindgren
2011-09-14  5:34     ` Shilimkar, Santosh
2011-09-14 15:21       ` Tony Lindgren
2011-09-14 16:49         ` Santosh
2011-09-14 17:08           ` Tony Lindgren
2011-09-14 17:13             ` Santosh
2011-09-14 17:18               ` Tony Lindgren
2011-09-14 17:21                 ` Santosh
2011-09-14 17:22                 ` Santosh
2011-09-14 19:04                   ` Tony Lindgren
2011-09-15  2:57                     ` Santosh
2011-09-15  9:36                   ` Cousson, Benoit
2011-09-15 12:02                     ` Shilimkar, Santosh
2011-09-15 13:29                       ` Woodruff, Richard
2011-09-04 13:54 ` [PATCH 14/25] OMAP4: PM: Add CPUX OFF mode support Santosh Shilimkar
2011-09-08 19:39   ` Jean Pihet
2011-09-09  9:59     ` Santosh
2011-09-09  8:04   ` Shawn Guo
2011-09-09  8:09     ` Santosh
2011-09-09 14:13       ` Shawn Guo
2011-09-09 14:11         ` Shilimkar, Santosh
2011-09-09 15:27           ` Shawn Guo
2011-09-09 16:59             ` Santosh
2011-09-09 18:34               ` Kevin Hilman
2011-09-10  3:39                 ` Shilimkar, Santosh
2011-09-09 23:34               ` Shawn Guo
2011-09-10  3:38                 ` Shilimkar, Santosh
2011-09-10  4:54                   ` Shawn Guo
2011-09-10  5:51                     ` Santosh
2011-09-12 21:06   ` Kevin Hilman
2011-09-13  5:39     ` Santosh
2011-09-13 17:33       ` Kevin Hilman
2011-09-14  5:26         ` Shilimkar, Santosh
2011-09-04 13:54 ` [PATCH 15/25] OMAP4: Remove __INIT from omap_secondary_startup() to re-use it for hotplug Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 16/25] OMAP4: PM: Program CPU1 to hit OFF when off-lined Santosh Shilimkar
2011-09-12 21:12   ` Kevin Hilman
2011-09-13  5:35     ` Santosh
2011-09-04 13:54 ` [PATCH 17/25] OMAP4: PM: CPU1 wakeup workaround from Low power modes Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 18/25] OMAP4: suspend: Add MPUSS power domain RETENTION support Santosh Shilimkar
2011-09-15  0:27   ` Kevin Hilman
2011-09-15  3:19     ` Santosh
2011-09-04 13:54 ` [PATCH 19/25] OMAP4: PM: Add WakeupGen and secure GIC low power support Santosh Shilimkar
2011-09-04 13:54 ` [PATCH 20/25] OMAP4: PM: Add L2X0 cache lowpower support Santosh Shilimkar
2011-09-05 14:01   ` Lorenzo Pieralisi
2011-09-05 14:13     ` Santosh
2011-09-16 17:23   ` Kevin Hilman
2011-09-18  8:46     ` Santosh
2011-09-04 13:54 ` [PATCH 21/25] OMAP4: PM: Add MPUSS power domain OSWR support Santosh Shilimkar
2011-09-12 18:52   ` Kevin Hilman
2011-09-13  5:37     ` Santosh
2011-09-13  7:39       ` Jean Pihet
2011-09-13  8:25         ` Santosh
2011-09-04 13:54 ` [PATCH 22/25] OMAP4: PM: Add power domain statistics support Santosh Shilimkar
2011-09-05 10:08   ` Sergei Shtylyov
2011-09-05 10:43     ` Santosh
2011-09-04 13:54 ` [PATCH 23/25] OMAP4: PM: Add CPUidle support Santosh Shilimkar
2011-09-16 17:45   ` Kevin Hilman
2011-09-18  8:47     ` Santosh
2011-09-04 13:54 ` [PATCH 24/25] OMAP4: cpuidle: Switch to gptimer from twd in deeper C-states Santosh Shilimkar
2011-09-16 17:51   ` Kevin Hilman
2011-09-18  8:48     ` Santosh
2011-09-04 13:54 ` [PATCH 25/25] OMAP3: CPUidle: Make use of CPU PM notifiers Santosh Shilimkar
2011-09-08 17:57   ` Kevin Hilman
2011-09-09  4:20     ` Santosh
2011-09-09  7:17     ` Santosh
2011-09-08 20:15 ` [PATCH 00/25] OMAP4: PM: suspend, CPU-hotplug and CPUilde support Jean Pihet
2011-09-09  4:25   ` Santosh
2011-09-20 11:24 ` Vishwanath Sripathy
2011-09-20 11:37   ` Santosh
2011-09-20 11:57 ` Santosh

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