Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 223 insertions, 0 deletions

diff --git a/qemu/roms/openbios/arch/sparc32/pgtsrmmu.h b/qemu/roms/openbios/arch/sparc32/pgtsrmmu.h
new file mode 100644
index 000000000..64dbaa657
--- /dev/null
+++ b/qemu/roms/openbios/arch/sparc32/pgtsrmmu.h
@@ -0,0 +1,223 @@
+/*
+ * Taken from kernel for decoupling from <asm/page.h>. --zaitcev
+ *
+ * $Id: pgtsrmmu.h,v 1.2 1999/04/19 01:04:31 zaitcev Exp $
+ * pgtsrmmu.h:  SRMMU page table defines and code.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef _PGTSRMMU_H
+#define _PGTSRMMU_H
+
+/* PMD_SHIFT determines the size of the area a second-level page table can map */
+#define SRMMU_PMD_SHIFT         18
+#define SRMMU_PMD_SIZE          (1UL << SRMMU_PMD_SHIFT)
+#define SRMMU_PMD_MASK          (~(SRMMU_PMD_SIZE-1))
+#define SRMMU_PMD_ALIGN(addr)   (((addr)+SRMMU_PMD_SIZE-1)&SRMMU_PMD_MASK)
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#define SRMMU_PGDIR_SHIFT       24
+#define SRMMU_PGDIR_SIZE        (1UL << SRMMU_PGDIR_SHIFT)
+#define SRMMU_PGDIR_MASK        (~(SRMMU_PGDIR_SIZE-1))
+#define SRMMU_PGDIR_ALIGN(addr) (((addr)+SRMMU_PGDIR_SIZE-1)&SRMMU_PGDIR_MASK)
+
+#define SRMMU_PTRS_PER_PTE      64
+#define SRMMU_PTRS_PER_PMD      64
+#define SRMMU_PTRS_PER_PGD      256
+
+#define SRMMU_PTE_TABLE_SIZE    0x100 /* 64 entries, 4 bytes a piece */
+#define SRMMU_PMD_TABLE_SIZE    0x100 /* 64 entries, 4 bytes a piece */
+#define SRMMU_PGD_TABLE_SIZE    0x400 /* 256 entries, 4 bytes a piece */
+
+#define SRMMU_VMALLOC_START   (0xfe300000)
+#define SRMMU_VMALLOC_END     ~0x0UL
+
+/* Definition of the values in the ET field of PTD's and PTE's */
+#define SRMMU_ET_MASK         0x3
+#define SRMMU_ET_INVALID      0x0
+#define SRMMU_ET_PTD          0x1
+#define SRMMU_ET_PTE          0x2
+#define SRMMU_ET_REPTE        0x3 /* AIEEE, SuperSparc II reverse endian page! */
+
+/* Physical page extraction from PTP's and PTE's. */
+#define SRMMU_CTX_PMASK    0xfffffff0
+#define SRMMU_PTD_PMASK    0xfffffff0
+#define SRMMU_PTE_PMASK    0xffffff00
+
+/* The pte non-page bits.  Some notes:
+ * 1) cache, dirty, valid, and ref are frobbable
+ *    for both supervisor and user pages.
+ * 2) exec and write will only give the desired effect
+ *    on user pages
+ * 3) use priv and priv_readonly for changing the
+ *    characteristics of supervisor ptes
+ */
+#define SRMMU_CACHE        0x80
+#define SRMMU_DIRTY        0x40
+#define SRMMU_REF          0x20
+#define SRMMU_EXEC         0x08
+#define SRMMU_WRITE        0x04
+#define SRMMU_VALID        0x02 /* SRMMU_ET_PTE */
+#define SRMMU_PRIV         0x1c
+#define SRMMU_PRIV_RDONLY  0x18
+
+#define SRMMU_CHG_MASK    (0xffffff00 | SRMMU_REF | SRMMU_DIRTY)
+
+/* SRMMU Register addresses in ASI 0x4.  These are valid for all
+ * current SRMMU implementations that exist.
+ */
+#define SRMMU_CTRL_REG           0x00000000
+#define SRMMU_CTXTBL_PTR         0x00000100
+#define SRMMU_CTX_REG            0x00000200
+#define SRMMU_FAULT_STATUS       0x00000300
+#define SRMMU_FAULT_ADDR         0x00000400
+
+#ifndef __ASSEMBLY__
+
+/* Accessing the MMU control register. */
+static __inline__ unsigned int srmmu_get_mmureg(void)
+{
+        unsigned int retval;
+	__asm__ __volatile__("lda [%%g0] %1, %0\n\t" :
+			     "=r" (retval) :
+			     "i" (ASI_M_MMUREGS));
+	return retval;
+}
+
+static __inline__ void srmmu_set_mmureg(unsigned long regval)
+{
+	__asm__ __volatile__("sta %0, [%%g0] %1\n\t" : :
+			     "r" (regval), "i" (ASI_M_MMUREGS) : "memory");
+
+}
+
+static __inline__ void srmmu_set_ctable_ptr(unsigned long paddr)
+{
+	paddr = ((paddr >> 4) & SRMMU_CTX_PMASK);
+	__asm__ __volatile__("sta %0, [%1] %2\n\t" : :
+			     "r" (paddr), "r" (SRMMU_CTXTBL_PTR),
+			     "i" (ASI_M_MMUREGS) :
+			     "memory");
+}
+
+static __inline__ unsigned long srmmu_get_ctable_ptr(void)
+{
+	unsigned int retval;
+
+	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
+			     "=r" (retval) :
+			     "r" (SRMMU_CTXTBL_PTR),
+			     "i" (ASI_M_MMUREGS));
+	return (retval & SRMMU_CTX_PMASK) << 4;
+}
+
+static __inline__ void srmmu_set_context(int context)
+{
+	__asm__ __volatile__("sta %0, [%1] %2\n\t" : :
+			     "r" (context), "r" (SRMMU_CTX_REG),
+			     "i" (ASI_M_MMUREGS) : "memory");
+}
+
+static __inline__ int srmmu_get_context(void)
+{
+	register int retval;
+	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
+			     "=r" (retval) :
+			     "r" (SRMMU_CTX_REG),
+			     "i" (ASI_M_MMUREGS));
+	return retval;
+}
+
+static __inline__ unsigned int srmmu_get_fstatus(void)
+{
+	unsigned int retval;
+
+	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
+			     "=r" (retval) :
+			     "r" (SRMMU_FAULT_STATUS), "i" (ASI_M_MMUREGS));
+	return retval;
+}
+
+static __inline__ unsigned int srmmu_get_faddr(void)
+{
+	unsigned int retval;
+
+	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
+			     "=r" (retval) :
+			     "r" (SRMMU_FAULT_ADDR), "i" (ASI_M_MMUREGS));
+	return retval;
+}
+
+/* This is guaranteed on all SRMMU's. */
+static __inline__ void srmmu_flush_whole_tlb(void)
+{
+	__asm__ __volatile__("sta %%g0, [%0] %1\n\t": :
+			     "r" (0x400),        /* Flush entire TLB!! */
+			     "i" (ASI_M_FLUSH_PROBE) : "memory");
+
+}
+
+/* These flush types are not available on all chips... */
+static __inline__ void srmmu_flush_tlb_ctx(void)
+{
+	__asm__ __volatile__("sta %%g0, [%0] %1\n\t": :
+			     "r" (0x300),        /* Flush TLB ctx.. */
+			     "i" (ASI_M_FLUSH_PROBE) : "memory");
+
+}
+
+static __inline__ void srmmu_flush_tlb_region(unsigned long addr)
+{
+	addr &= SRMMU_PGDIR_MASK;
+	__asm__ __volatile__("sta %%g0, [%0] %1\n\t": :
+			     "r" (addr | 0x200), /* Flush TLB region.. */
+			     "i" (ASI_M_FLUSH_PROBE) : "memory");
+
+}
+
+
+static __inline__ void srmmu_flush_tlb_segment(unsigned long addr)
+{
+	addr &= SRMMU_PMD_MASK;
+	__asm__ __volatile__("sta %%g0, [%0] %1\n\t": :
+			     "r" (addr | 0x100), /* Flush TLB segment.. */
+			     "i" (ASI_M_FLUSH_PROBE) : "memory");
+
+}
+
+static __inline__ void srmmu_flush_tlb_page(unsigned long page)
+{
+	page &= PAGE_MASK;
+	__asm__ __volatile__("sta %%g0, [%0] %1\n\t": :
+			     "r" (page),        /* Flush TLB page.. */
+			     "i" (ASI_M_FLUSH_PROBE) : "memory");
+
+}
+
+static __inline__ unsigned long srmmu_hwprobe(unsigned long vaddr)
+{
+	unsigned long retval;
+
+	vaddr &= PAGE_MASK;
+	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
+			     "=r" (retval) :
+			     "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
+
+	return retval;
+}
+
+static __inline__ int
+srmmu_get_pte (unsigned long addr)
+{
+	register unsigned long entry;
+
+	__asm__ __volatile__("\n\tlda [%1] %2,%0\n\t" :
+				"=r" (entry):
+				"r" ((addr & 0xfffff000) | 0x400), "i" (ASI_M_FLUSH_PROBE));
+	return entry;
+}
+
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* !(_SPARC_PGTSRMMU_H) */