adjust SMP port to also use ULONG = 8 bytes
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@@ -17,14 +17,14 @@ _tx_thread_smp_unprotect:
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la t2, _tx_thread_smp_protection
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/* Only the owning hart may release the protection. */
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LWU t3, 4(t2) // Pickup owning hart
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LOAD t3, 1*REGBYTES(t2) // Pickup owning hart
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bne t1, t3, _still_protected // Not owner, skip release
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/* Pickup and decrement the protection count. */
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LWU t3, 8(t2) // Pickup protection count
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LOAD t3, 2*REGBYTES(t2) // Pickup protection count
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beqz t3, _still_protected // Already cleared
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addi t3, t3, -1 // Decrement protection count
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sw t3, 8(t2) // Store new count
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STORE t3, 2*REGBYTES(t2) // Store new count
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bnez t3, _still_protected // Still nested, stay protected
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/* If preemption is disabled, keep protection in force. */
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@@ -34,8 +34,8 @@ _tx_thread_smp_unprotect:
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/* Release the protection. */
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li t3, -1 // Invalid owner value
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sw t3, 4(t2) // Mark owning hart invalid
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amoswap.w.rl x0, x0, (t2) // Release protection flag
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STORE t3, 1*REGBYTES(t2) // Mark owning hart invalid
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AMOSWAP_RL x0, x0, (t2) // Release protection flag
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_still_protected:
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csrw mstatus, a0 // Restore interrupt posture
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