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Message-ID: <1418897888-17669-5-git-send-email-aleksey.makarov@auriga.com> Date: Thu, 18 Dec 2014 13:17:56 +0300 From: Aleksey Makarov <aleksey.makarov@...iga.com> To: <linux-mips@...ux-mips.org> CC: <linux-kernel@...r.kernel.org>, David Daney <david.daney@...ium.com>, Aleksey Makarov <aleksey.makarov@...iga.com>, Chandrakala Chavva <cchavva@...iumnetworks.com>, Ralf Baechle <ralf@...ux-mips.org> Subject: [PATCH v2 04/12] MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register From: Chandrakala Chavva <cchavva@...iumnetworks.com> Use dmfc0/dmtc0 instructions for reading CvmMemCtl COP0 register, its a 64-bit wide. Signed-off-by: Chandrakala Chavva <cchavva@...iumnetworks.com> Signed-off-by: Aleksey Makarov <aleksey.makarov@...iga.com> --- arch/mips/kernel/octeon_switch.S | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S index 590ca2d..f0a699d 100644 --- a/arch/mips/kernel/octeon_switch.S +++ b/arch/mips/kernel/octeon_switch.S @@ -80,7 +80,7 @@ 1: #if CONFIG_CAVIUM_OCTEON_CVMSEG_SIZE > 0 /* Check if we need to store CVMSEG state */ - mfc0 t0, $11,7 /* CvmMemCtl */ + dmfc0 t0, $11,7 /* CvmMemCtl */ bbit0 t0, 6, 3f /* Is user access enabled? */ /* Store the CVMSEG state */ @@ -104,9 +104,9 @@ .set reorder /* Disable access to CVMSEG */ - mfc0 t0, $11,7 /* CvmMemCtl */ + dmfc0 t0, $11,7 /* CvmMemCtl */ xori t0, t0, 0x40 /* Bit 6 is CVMSEG user enable */ - mtc0 t0, $11,7 /* CvmMemCtl */ + dmtc0 t0, $11,7 /* CvmMemCtl */ #endif 3: -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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