From: York Sun Date: Fri, 8 Sep 2017 16:33:49 +0000 (-0700) Subject: armv8: fsl-layerscape: Add back L3 flushing for all exception levels X-Git-Tag: v2017.11-rc1~165^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=42f43aa25876d1c77002ee5f333ab36dcb01d719;p=platform%2Fkernel%2Fu-boot.git armv8: fsl-layerscape: Add back L3 flushing for all exception levels CCN-504 HPF registers were believed to be accessible only from EL3. However, recent tests proved otherwise. Remove checking for exception level to re-enable L3 cache flushing for all levels. Signed-off-by: York Sun Tested-by: Zhao Qiang --- diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S index 5ff01a0..fa93096 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S +++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S @@ -396,9 +396,6 @@ ENTRY(__asm_flush_l3_dcache) mov x29, lr mov x8, #0 - switch_el x0, 1f, 100f, 100f /* skip if not in EL3 */ - -1: dsb sy mov x0, #0x1 /* HNFPSTAT_SFONLY */ bl hnf_set_pstate @@ -416,7 +413,6 @@ ENTRY(__asm_flush_l3_dcache) bl hnf_pstate_poll cbz x0, 1f add x8, x8, #0x2 -100: 1: mov x0, x8 mov lr, x29