arm/fpu: FPU is supported when the TEE is enabled
Summary: 1. Support armv7-a armv7-r armv8-r 2. The NSACR is read-only in Non-secure PL1 and PL2 modes. 3. The NSACR is read/write in Secure PL1 modes. 4. When the NSACR.{CP11,CP10} bit is set to 1, Non-secure access to coprocessor 11,10 enable Signed-off-by: wangming9 <wangming9@xiaomi.com> Signed-off-by: lipengfei28 <lipengfei28@xiaomi.com>
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3 changed files with 21 additions and 0 deletions
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@ -75,6 +75,13 @@ arm_fpuconfig:
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mcr CP15_CPACR(r0)
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/* Enable access to CP10 and CP11 in CP15.NSACR */
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#ifdef CONFIG_ARCH_TRUSTZONE_SECURE
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mrc CP15_NSACR(r0)
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orr r0, r0, #0xc00
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mcr CP15_NSACR(r0)
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#endif
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/* REVISIT: Do we need to do this? */
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/* Set FPEXC.EN (B30) */
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@ -75,6 +75,13 @@ arm_fpuconfig:
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mcr CP15_CPACR(r0)
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/* Enable access to CP10 and CP11 in CP15.NSACR */
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#ifdef CONFIG_ARCH_TRUSTZONE_SECURE
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mrc CP15_NSACR(r0)
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orr r0, r0, #0xc00
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mcr CP15_NSACR(r0)
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#endif
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/* REVISIT: Do we need to do this? */
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/* Set FPEXC.EN (B30) */
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@ -75,6 +75,13 @@ arm_fpuconfig:
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mcr CP15_CPACR(r0)
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/* Enable access to CP10 and CP11 in CP15.NSACR */
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#ifdef CONFIG_ARCH_TRUSTZONE_SECURE
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mrc CP15_NSACR(r0)
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orr r0, r0, #0xc00
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mcr CP15_NSACR(r0)
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#endif
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/* REVISIT: Do we need to do this? */
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/* Set FPEXC.EN (B30) */
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