Merge branch 'master' into openslxopenslx

18 files changed, 109 insertions, 238 deletions

diff --git a/src/arch/loong64/include/bits/acpi.h b/src/arch/loong64/include/bits/acpi.h
deleted file mode 100644
index 83dd1df9a..000000000
--- a/src/arch/loong64/include/bits/acpi.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_ACPI_H
-#define _BITS_ACPI_H
-
-/** @file
- *
- * LoongArch64-specific ACPI API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_ACPI_H */
diff --git a/src/arch/loong64/include/bits/bigint.h b/src/arch/loong64/include/bits/bigint.h
index bec748beb..6a879503a 100644
--- a/src/arch/loong64/include/bits/bigint.h
+++ b/src/arch/loong64/include/bits/bigint.h
@@ -43,8 +43,9 @@ bigint_init_raw ( uint64_t *value0, unsigned int size,
  * @v addend0		Element 0 of big integer to add
  * @v value0		Element 0 of big integer to be added to
  * @v size		Number of elements
+ * @ret carry		Carry out
  */
-static inline __attribute__ (( always_inline )) void
+static inline __attribute__ (( always_inline )) int
 bigint_add_raw ( const uint64_t *addend0, uint64_t *value0,
 		 unsigned int size ) {
 	bigint_t ( size ) __attribute__ (( may_alias )) *value =
@@ -53,20 +54,20 @@ bigint_add_raw ( const uint64_t *addend0, uint64_t *value0,
 	uint64_t *discard_value;
 	uint64_t discard_addend_i;
 	uint64_t discard_value_i;
-	uint64_t discard_carry;
 	uint64_t discard_temp;
 	unsigned int discard_size;
+	uint64_t carry;
 
 	__asm__ __volatile__ ( "\n1:\n\t"
 			       /* Load addend[i] and value[i] */
 			       "ld.d %3, %0, 0\n\t"
 			       "ld.d %4, %1, 0\n\t"
 			       /* Add carry flag and addend */
-			       "add.d %4, %4, %5\n\t"
-			       "sltu %6, %4, %5\n\t"
+			       "add.d %4, %4, %6\n\t"
+			       "sltu %5, %4, %6\n\t"
 			       "add.d %4, %4, %3\n\t"
-			       "sltu %5, %4, %3\n\t"
-			       "or %5, %5, %6\n\t"
+			       "sltu %6, %4, %3\n\t"
+			       "or %6, %5, %6\n\t"
 			       /* Store value[i] */
 			       "st.d %4, %1, 0\n\t"
 			       /* Loop */
@@ -79,11 +80,12 @@ bigint_add_raw ( const uint64_t *addend0, uint64_t *value0,
 				 "=r" ( discard_size ),
 				 "=r" ( discard_addend_i ),
 				 "=r" ( discard_value_i ),
-				 "=r" ( discard_carry ),
 				 "=r" ( discard_temp ),
+				 "=r" ( carry ),
 				 "+m" ( *value )
 			       : "0" ( addend0 ), "1" ( value0 ),
-				 "2" ( size ), "5" ( 0 ) );
+				 "2" ( size ), "6" ( 0 ) );
+	return carry;
 }
 
 /**
@@ -92,8 +94,9 @@ bigint_add_raw ( const uint64_t *addend0, uint64_t *value0,
  * @v subtrahend0	Element 0 of big integer to subtract
  * @v value0		Element 0 of big integer to be subtracted from
  * @v size		Number of elements
+ * @ret borrow		Borrow out
  */
-static inline __attribute__ (( always_inline )) void
+static inline __attribute__ (( always_inline )) int
 bigint_subtract_raw ( const uint64_t *subtrahend0, uint64_t *value0,
 		      unsigned int size ) {
 	bigint_t ( size ) __attribute__ (( may_alias )) *value =
@@ -102,20 +105,20 @@ bigint_subtract_raw ( const uint64_t *subtrahend0, uint64_t *value0,
 	uint64_t *discard_value;
 	uint64_t discard_subtrahend_i;
 	uint64_t discard_value_i;
-	uint64_t discard_carry;
 	uint64_t discard_temp;
 	unsigned int discard_size;
+	uint64_t borrow;
 
 	__asm__ __volatile__ ( "\n1:\n\t"
 			       /* Load subtrahend[i] and value[i] */
 			       "ld.d %3, %0, 0\n\t"
 			       "ld.d %4, %1, 0\n\t"
 			       /* Subtract carry flag and subtrahend */
-			       "sltu %6, %4, %5\n\t"
-			       "sub.d %4, %4, %5\n\t"
-			       "sltu %5, %4, %3\n\t"
+			       "sltu %5, %4, %6\n\t"
+			       "sub.d %4, %4, %6\n\t"
+			       "sltu %6, %4, %3\n\t"
 			       "sub.d %4, %4, %3\n\t"
-			       "or %5, %5, %6\n\t"
+			       "or %6, %5, %6\n\t"
 			       /* Store value[i] */
 			       "st.d %4, %1, 0\n\t"
 			       /* Loop */
@@ -128,38 +131,40 @@ bigint_subtract_raw ( const uint64_t *subtrahend0, uint64_t *value0,
 				 "=r" ( discard_size ),
 				 "=r" ( discard_subtrahend_i ),
 				 "=r" ( discard_value_i ),
-				 "=r" ( discard_carry ),
 				 "=r" ( discard_temp ),
+				 "=r" ( borrow ),
 				 "+m" ( *value )
 			       : "0" ( subtrahend0 ), "1" ( value0 ),
-				 "2" ( size ), "5" ( 0 ) );
+				 "2" ( size ), "6" ( 0 ) );
+	return borrow;
 }
 
 /**
- * Rotate big integer left
+ * Shift big integer left
  *
  * @v value0		Element 0 of big integer
  * @v size		Number of elements
+ * @ret out		Bit shifted out
  */
-static inline __attribute__ (( always_inline )) void
-bigint_rol_raw ( uint64_t *value0, unsigned int size ) {
+static inline __attribute__ (( always_inline )) int
+bigint_shl_raw ( uint64_t *value0, unsigned int size ) {
 	bigint_t ( size ) __attribute__ (( may_alias )) *value =
 		( ( void * ) value0 );
 	uint64_t *discard_value;
 	uint64_t discard_value_i;
-	uint64_t discard_carry;
 	uint64_t discard_temp;
 	unsigned int discard_size;
+	uint64_t carry;
 
 	__asm__ __volatile__ ( "\n1:\n\t"
 			       /* Load value[i] */
 			       "ld.d %2, %0, 0\n\t"
 			       /* Shift left */
 			       "rotri.d %2, %2, 63\n\t"
-			       "andi %4, %2, 1\n\t"
-			       "xor %2, %2, %4\n\t"
-			       "or %2, %2, %3\n\t"
-			       "move %3, %4\n\t"
+			       "andi %3, %2, 1\n\t"
+			       "xor %2, %2, %3\n\t"
+			       "or %2, %2, %4\n\t"
+			       "move %4, %3\n\t"
 			       /* Store value[i] */
 			       "st.d %2, %0, 0\n\t"
 			       /* Loop  */
@@ -169,37 +174,39 @@ bigint_rol_raw ( uint64_t *value0, unsigned int size ) {
 			       : "=r" ( discard_value ),
 				 "=r" ( discard_size ),
 				 "=r" ( discard_value_i ),
-				 "=r" ( discard_carry ),
 				 "=r" ( discard_temp ),
+				 "=r" ( carry ),
 				 "+m" ( *value )
-			       : "0" ( value0 ), "1" ( size ), "3" ( 0 )
+			       : "0" ( value0 ), "1" ( size ), "4" ( 0 )
 			       : "cc" );
+	return ( carry & 1 );
 }
 
 /**
- * Rotate big integer right
+ * Shift big integer right
  *
  * @v value0		Element 0 of big integer
  * @v size		Number of elements
+ * @ret out		Bit shifted out
  */
-static inline __attribute__ (( always_inline )) void
-bigint_ror_raw ( uint64_t *value0, unsigned int size ) {
+static inline __attribute__ (( always_inline )) int
+bigint_shr_raw ( uint64_t *value0, unsigned int size ) {
 	bigint_t ( size ) __attribute__ (( may_alias )) *value =
 		( ( void * ) value0 );
 	uint64_t *discard_value;
 	uint64_t discard_value_i;
-	uint64_t discard_carry;
 	uint64_t discard_temp;
 	unsigned int discard_size;
+	uint64_t carry;
 
 	__asm__ __volatile__ ( "\n1:\n\t"
 			       /* Load value[i] */
 			       "ld.d %2, %0, -8\n\t"
 			       /* Shift right */
-			       "andi %4, %2, 1\n\t"
-			       "xor %2, %2, %4\n\t"
-			       "or %2, %2, %3\n\t"
-			       "move %3, %4\n\t"
+			       "andi %3, %2, 1\n\t"
+			       "xor %2, %2, %3\n\t"
+			       "or %2, %2, %4\n\t"
+			       "move %4, %3\n\t"
 			       "rotri.d %2, %2, 1\n\t"
 			       /* Store value[i] */
 			       "st.d %2, %0, -8\n\t"
@@ -210,11 +217,12 @@ bigint_ror_raw ( uint64_t *value0, unsigned int size ) {
 			       : "=r" ( discard_value ),
 				 "=r" ( discard_size ),
 				 "=r" ( discard_value_i ),
-				 "=r" ( discard_carry ),
 				 "=r" ( discard_temp ),
+				 "=r" ( carry ),
 				 "+m" ( *value )
-			       : "0" ( value0 + size ), "1" ( size ), "3" ( 0 )
+			       : "0" ( value0 + size ), "1" ( size ), "4" ( 0 )
 			       : "cc" );
+	return ( carry & 1 );
 }
 
 /**
@@ -265,25 +273,6 @@ bigint_is_geq_raw ( const uint64_t *value0, const uint64_t *reference0,
 }
 
 /**
- * Test if bit is set in big integer
- *
- * @v value0		Element 0 of big integer
- * @v size		Number of elements
- * @v bit		Bit to test
- * @ret is_set		Bit is set
- */
-static inline __attribute__ (( always_inline )) int
-bigint_bit_is_set_raw ( const uint64_t *value0, unsigned int size,
-			unsigned int bit ) {
-	const bigint_t ( size ) __attribute__ (( may_alias )) *value =
-		( ( const void * ) value0 );
-	unsigned int index = ( bit / ( 8 * sizeof ( value->element[0] ) ) );
-	unsigned int subindex = ( bit % ( 8 * sizeof ( value->element[0] ) ) );
-
-	return ( !! ( value->element[index] & ( 1UL << subindex ) ) );
-}
-
-/**
  * Find highest bit set in big integer
  *
  * @v value0		Element 0 of big integer
@@ -357,10 +346,39 @@ bigint_done_raw ( const uint64_t *value0, unsigned int size __unused,
 		*(--out_byte) = *(value_byte++);
 }
 
-extern void bigint_multiply_raw ( const uint64_t *multiplicand0,
-				  unsigned int multiplicand_size,
-				  const uint64_t *multiplier0,
-				  unsigned int multiplier_size,
-				  uint64_t *value0 );
+/**
+ * Multiply big integer elements
+ *
+ * @v multiplicand	Multiplicand element
+ * @v multiplier	Multiplier element
+ * @v result		Result element
+ * @v carry		Carry element
+ */
+static inline __attribute__ (( always_inline )) void
+bigint_multiply_one ( const uint64_t multiplicand, const uint64_t multiplier,
+		      uint64_t *result, uint64_t *carry ) {
+	uint64_t discard_low;
+	uint64_t discard_high;
+	uint64_t discard_carry;
+
+	__asm__ __volatile__ ( /* Perform multiplication */
+			       "mul.d %0, %5, %6\n\t"
+			       "mulh.du %1, %5, %6\n\t"
+			       /* Accumulate low half */
+			       "add.d %3, %3, %0\n\t"
+			       "sltu %2, %3, %0\n\t"
+			       "add.d %1, %1, %2\n\t"
+			       /* Accumulate carry (cannot overflow) */
+			       "add.d %3, %3, %4\n\t"
+			       "sltu %2, %3, %4\n\t"
+			       "add.d %4, %1, %2\n\t"
+			       : "=&r" ( discard_low ),
+				 "=r" ( discard_high ),
+				 "=r" ( discard_carry ),
+				 "+r" ( *result ),
+				 "+r" ( *carry )
+			       : "r" ( multiplicand ),
+				 "r" ( multiplier ) );
+}
 
 #endif /* _BITS_BIGINT_H */
diff --git a/src/arch/loong64/include/bits/hyperv.h b/src/arch/loong64/include/bits/hyperv.h
deleted file mode 100644
index f0e0c8793..000000000
--- a/src/arch/loong64/include/bits/hyperv.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_HYPERV_H
-#define _BITS_HYPERV_H
-
-/** @file
- *
- * Hyper-V interface
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_HYPERV_H */
diff --git a/src/arch/loong64/include/bits/iomap.h b/src/arch/loong64/include/bits/iomap.h
deleted file mode 100644
index 041171d22..000000000
--- a/src/arch/loong64/include/bits/iomap.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_IOMAP_H
-#define _BITS_IOMAP_H
-
-/** @file
- *
- * LoongArch64-specific I/O mapping API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_IOMAP_H */
diff --git a/src/arch/loong64/include/bits/mp.h b/src/arch/loong64/include/bits/mp.h
deleted file mode 100644
index fef2fd59a..000000000
--- a/src/arch/loong64/include/bits/mp.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_MP_H
-#define _BITS_MP_H
-
-/** @file
- *
- * LoongArch64-specific multiprocessor API implementation
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_MP_H */
diff --git a/src/arch/loong64/include/bits/nap.h b/src/arch/loong64/include/bits/nap.h
index 2deba3558..d904db537 100644
--- a/src/arch/loong64/include/bits/nap.h
+++ b/src/arch/loong64/include/bits/nap.h
@@ -9,6 +9,12 @@
 
 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
-#include <ipxe/efi/efiloong64_nap.h>
+/**
+ * Sleep until next CPU interrupt
+ *
+ */
+static inline __attribute__ (( always_inline )) void cpu_halt ( void ) {
+	__asm__ __volatile__ ( "idle 0" );
+}
 
 #endif /* _BITS_NAP_H */
diff --git a/src/arch/loong64/include/bits/pci_io.h b/src/arch/loong64/include/bits/pci_io.h
deleted file mode 100644
index fdc5141cf..000000000
--- a/src/arch/loong64/include/bits/pci_io.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_PCI_IO_H
-#define _BITS_PCI_IO_H
-
-/** @file
- *
- * LoongArch64-specific PCI I/O API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_PCI_IO_H */
diff --git a/src/arch/loong64/include/bits/profile.h b/src/arch/loong64/include/bits/profile.h
index 9f597ce2d..02f8d4b7c 100644
--- a/src/arch/loong64/include/bits/profile.h
+++ b/src/arch/loong64/include/bits/profile.h
@@ -16,7 +16,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  *
  * @ret timestamp	Timestamp
  */
-static inline __attribute__ (( always_inline )) uint64_t
+static inline __attribute__ (( always_inline )) unsigned long
 profile_timestamp ( void ) {
 	uint64_t cycles;
 
diff --git a/src/arch/loong64/include/bits/reboot.h b/src/arch/loong64/include/bits/reboot.h
deleted file mode 100644
index 96a1eb1ce..000000000
--- a/src/arch/loong64/include/bits/reboot.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_REBOOT_H
-#define _BITS_REBOOT_H
-
-/** @file
- *
- * LoongArch64-specific reboot API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_REBOOT_H */
diff --git a/src/arch/loong64/include/bits/sanboot.h b/src/arch/loong64/include/bits/sanboot.h
deleted file mode 100644
index f9205e2ad..000000000
--- a/src/arch/loong64/include/bits/sanboot.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_SANBOOT_H
-#define _BITS_SANBOOT_H
-
-/** @file
- *
- * LoongArch64-specific sanboot API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_SANBOOT_H */
diff --git a/src/arch/loong64/include/bits/setjmp.h b/src/arch/loong64/include/bits/setjmp.h
new file mode 100644
index 000000000..c8d7cef0e
--- /dev/null
+++ b/src/arch/loong64/include/bits/setjmp.h
@@ -0,0 +1,23 @@
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+/** A jump buffer */
+typedef struct {
+	uint64_t s0;
+	uint64_t s1;
+	uint64_t s2;
+	uint64_t s3;
+	uint64_t s4;
+	uint64_t s5;
+	uint64_t s6;
+	uint64_t s7;
+	uint64_t s8;
+
+	uint64_t fp;
+	uint64_t sp;
+	uint64_t ra;
+} jmp_buf[1];
+
+#endif /* _BITS_SETJMP_H */
diff --git a/src/arch/loong64/include/bits/smbios.h b/src/arch/loong64/include/bits/smbios.h
deleted file mode 100644
index 6c87db430..000000000
--- a/src/arch/loong64/include/bits/smbios.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_SMBIOS_H
-#define _BITS_SMBIOS_H
-
-/** @file
- *
- * LoongArch64-specific SMBIOS API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_SMBIOS_H */
diff --git a/src/arch/loong64/include/bits/tcpip.h b/src/arch/loong64/include/bits/tcpip.h
deleted file mode 100644
index fc3c5b3ff..000000000
--- a/src/arch/loong64/include/bits/tcpip.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef _BITS_TCPIP_H
-#define _BITS_TCPIP_H
-
-/** @file
- *
- * Transport-network layer interface
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-static inline __attribute__ (( always_inline )) uint16_t
-tcpip_continue_chksum ( uint16_t partial, const void *data, size_t len ) {
-
-	/* Not yet optimised */
-	return generic_tcpip_continue_chksum ( partial, data, len );
-}
-
-#endif /* _BITS_TCPIP_H */
diff --git a/src/arch/loong64/include/bits/time.h b/src/arch/loong64/include/bits/time.h
deleted file mode 100644
index 4cd7485cf..000000000
--- a/src/arch/loong64/include/bits/time.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_TIME_H
-#define _BITS_TIME_H
-
-/** @file
- *
- * LoongArch64-specific time API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_TIME_H */
diff --git a/src/arch/loong64/include/bits/uaccess.h b/src/arch/loong64/include/bits/uaccess.h
deleted file mode 100644
index dddd9be04..000000000
--- a/src/arch/loong64/include/bits/uaccess.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_UACCESS_H
-#define _BITS_UACCESS_H
-
-/** @file
- *
- * LoongArch64-specific user access API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_UACCESS_H */
diff --git a/src/arch/loong64/include/bits/uart.h b/src/arch/loong64/include/bits/uart.h
deleted file mode 100644
index 6f85975f7..000000000
--- a/src/arch/loong64/include/bits/uart.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_UART_H
-#define _BITS_UART_H
-
-/** @file
- *
- * 16550-compatible UART
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_UART_H */
diff --git a/src/arch/loong64/include/bits/umalloc.h b/src/arch/loong64/include/bits/umalloc.h
deleted file mode 100644
index f6978b8bd..000000000
--- a/src/arch/loong64/include/bits/umalloc.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _BITS_UMALLOC_H
-#define _BITS_UMALLOC_H
-
-/** @file
- *
- * LoongArch64-specific user memory allocation API implementations
- *
- */
-
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#endif /* _BITS_UMALLOC_H */
diff --git a/src/arch/loong64/include/bits/xen.h b/src/arch/loong64/include/bits/xen.h
deleted file mode 100644
index 2a3d7741c..000000000
--- a/src/arch/loong64/include/bits/xen.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef _BITS_XEN_H
-#define _BITS_XEN_H
-
-/** @file
- *
- * Xen interface
- *
- */
-FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
-#include <ipxe/nonxen.h>
-
-#endif /* _BITS_XEN_H */