Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754403AbaFBMgJ (ORCPT ); Mon, 2 Jun 2014 08:36:09 -0400 Received: from mailout3.samsung.com ([203.254.224.33]:44542 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754292AbaFBMgA (ORCPT ); Mon, 2 Jun 2014 08:36:00 -0400 X-AuditID: cbfee61a-b7fef6d00000200b-28-538c6fae5fc9 From: Bartlomiej Zolnierkiewicz To: Kukjin Kim Cc: Daniel Lezcano , Tomasz Figa , Sachin Kamat , Viresh Kumar , "Rafael J. Wysocki" , Kyungmin Park , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linaro-kernel@lists.linaro.org, b.zolnierkie@samsung.com Subject: [PATCH v2 1/7] arm: firmware: Check firmware is running or not Date: Mon, 02 Jun 2014 14:35:37 +0200 Message-id: <1401712543-14281-2-git-send-email-b.zolnierkie@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1401712543-14281-1-git-send-email-b.zolnierkie@samsung.com> References: <1401712543-14281-1-git-send-email-b.zolnierkie@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrKLMWRmVeSWpSXmKPExsVy+t9jQd31+T3BBu9usllsnLGe1WLeZ1mL 3gVX2SzONr1ht3h/6BmzxabH11gtLu+aw2bxufcIo8WM8/uYLM6cvsRqcfJPL6PF+hmvWSw2 fvVw4PW4c20Pm8fmJfUet/89ZvbYcrWdxaNvyypGj8+b5ALYorhsUlJzMstSi/TtErgy1sxY zFTQxVPx7NZVpgbGe5xdjJwcEgImEm+fzWWEsMUkLtxbz9bFyMUhJDCdUWLlxLcsEE4Xk8S6 TQ/ZQKrYBKwkJravAusQEVCT6Fm8lRGkiFlgL7PE0u5N7CAJYQF3iRmbH4E1sAioSiy9cxus gVfAQ+LXlzOsEOsUJbqfTQCr4RTwlFh57yFYXAioZt+rXUwTGHkXMDKsYhRNLUguKE5KzzXU K07MLS7NS9dLzs/dxAgOzGdSOxhXNlgcYhTgYFTi4f2p3hMsxJpYVlyZe4hRgoNZSYR3qQVQ iDclsbIqtSg/vqg0J7X4EKM0B4uSOO+BVutAIYH0xJLU7NTUgtQimCwTB6dUA2NscmVIbfbk ZX73NwkXv7xrk+N3c8fuGXuYshrO3tyxIuSPR3Gas4h+9cyFhdPiJsXsE58vf/ksx1/35VGl z5vOzkzO3TrtNc+TpFsHFA6zqckZOnJwlLvPvxI37ze74AS7pvdryuRvbnrfsd5jAuOOIw9S 0/wmbTX4Yy/hknkg7nCRwKvZvUpKLMUZiYZazEXFiQCYqGpXSAIAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kyungmin Park To support multi-platform, it needs to know it's running under secure OS or not. Sometimes it needs to access physical address by SMC calls. e.g., if (firmware_run()) { addr = physical address; } else { addr = virtual address; } call_firmware_ops(read_address, addr, &value); Signed-off-by: Kyungmin Park Signed-off-by: Bartlomiej Zolnierkiewicz --- arch/arm/common/firmware.c | 5 +++++ arch/arm/include/asm/firmware.h | 3 +++ 2 files changed, 8 insertions(+) diff --git a/arch/arm/common/firmware.c b/arch/arm/common/firmware.c index 27ddccb..e9d9ee5 100644 --- a/arch/arm/common/firmware.c +++ b/arch/arm/common/firmware.c @@ -16,3 +16,8 @@ static const struct firmware_ops default_firmware_ops; const struct firmware_ops *firmware_ops = &default_firmware_ops; + +int firmware_run(void) +{ + return firmware_ops != &default_firmware_ops; +} diff --git a/arch/arm/include/asm/firmware.h b/arch/arm/include/asm/firmware.h index 2c9f10d..c72ec47 100644 --- a/arch/arm/include/asm/firmware.h +++ b/arch/arm/include/asm/firmware.h @@ -46,6 +46,9 @@ struct firmware_ops { /* Global pointer for current firmware_ops structure, can't be NULL. */ extern const struct firmware_ops *firmware_ops; +/* Check firmware is running */ +extern int firmware_run(void); + /* * call_firmware_op(op, ...) * -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/