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authorKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2012-01-27 11:14:02 -0500
commit6c02b7b1610f873888af20f291c07730889ff0f9 (patch)
tree1b33e6642cc81605b8d37c0bda0abff0ba64fa2d /arch/mips/include/asm/netlogic/haldefs.h
parent7a7546b377bdaa25ac77f33d9433c59f259b9688 (diff)
parentdcd6c92267155e70a94b3927bce681ce74b80d1f (diff)
Merge commit 'v3.3-rc1' into stable/for-linus-fixes-3.3
* commit 'v3.3-rc1': (9775 commits) Linux 3.3-rc1 x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits qnx4: don't leak ->BitMap on late failure exits qnx4: reduce the insane nesting in qnx4_checkroot() qnx4: di_fname is an array, for crying out loud... KEYS: Permit key_serial() to be called with a const key pointer keys: fix user_defined key sparse messages ima: fix cred sparse warning uml: fix compile for x86-64 MPILIB: Add a missing ENOMEM check tpm: fix (ACPI S3) suspend regression nvme: fix merge error due to change of 'make_request_fn' fn type xen: using EXPORT_SYMBOL requires including export.h gpio: tps65910: Use correct offset for gpio initialization acpi/apei/einj: Add extensions to EINJ from rev 5.0 of acpi spec intel_idle: Split up and provide per CPU initialization func ACPI processor: Remove unneeded variable passed by acpi_processor_hotadd_init V2 tg3: Fix single-vector MSI-X code openvswitch: Fix multipart datapath dumps. ipv6: fix per device IP snmp counters ...
Diffstat (limited to 'arch/mips/include/asm/netlogic/haldefs.h')
-rw-r--r--arch/mips/include/asm/netlogic/haldefs.h163
1 files changed, 163 insertions, 0 deletions
diff --git a/arch/mips/include/asm/netlogic/haldefs.h b/arch/mips/include/asm/netlogic/haldefs.h
new file mode 100644
index 000000000000..72a0c788b472
--- /dev/null
+++ b/arch/mips/include/asm/netlogic/haldefs.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
+ * reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the NetLogic
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __NLM_HAL_HALDEFS_H__
+#define __NLM_HAL_HALDEFS_H__
+
+/*
+ * This file contains platform specific memory mapped IO implementation
+ * and will provide a way to read 32/64 bit memory mapped registers in
+ * all ABIs
+ */
+#if !defined(CONFIG_64BIT) && defined(CONFIG_CPU_XLP)
+#error "o32 compile not supported on XLP yet"
+#endif
+/*
+ * For o32 compilation, we have to disable interrupts and enable KX bit to
+ * access 64 bit addresses or data.
+ *
+ * We need to disable interrupts because we save just the lower 32 bits of
+ * registers in interrupt handling. So if we get hit by an interrupt while
+ * using the upper 32 bits of a register, we lose.
+ */
+static inline uint32_t nlm_save_flags_kx(void)
+{
+ return change_c0_status(ST0_KX | ST0_IE, ST0_KX);
+}
+
+static inline uint32_t nlm_save_flags_cop2(void)
+{
+ return change_c0_status(ST0_CU2 | ST0_IE, ST0_CU2);
+}
+
+static inline void nlm_restore_flags(uint32_t sr)
+{
+ write_c0_status(sr);
+}
+
+/*
+ * The n64 implementations are simple, the o32 implementations when they
+ * are added, will have to disable interrupts and enable KX before doing
+ * 64 bit ops.
+ */
+static inline uint32_t
+nlm_read_reg(uint64_t base, uint32_t reg)
+{
+ volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg;
+
+ return *addr;
+}
+
+static inline void
+nlm_write_reg(uint64_t base, uint32_t reg, uint32_t val)
+{
+ volatile uint32_t *addr = (volatile uint32_t *)(long)base + reg;
+
+ *addr = val;
+}
+
+static inline uint64_t
+nlm_read_reg64(uint64_t base, uint32_t reg)
+{
+ uint64_t addr = base + (reg >> 1) * sizeof(uint64_t);
+ volatile uint64_t *ptr = (volatile uint64_t *)(long)addr;
+
+ return *ptr;
+}
+
+static inline void
+nlm_write_reg64(uint64_t base, uint32_t reg, uint64_t val)
+{
+ uint64_t addr = base + (reg >> 1) * sizeof(uint64_t);
+ volatile uint64_t *ptr = (volatile uint64_t *)(long)addr;
+
+ *ptr = val;
+}
+
+/*
+ * Routines to store 32/64 bit values to 64 bit addresses,
+ * used when going thru XKPHYS to access registers
+ */
+static inline uint32_t
+nlm_read_reg_xkphys(uint64_t base, uint32_t reg)
+{
+ return nlm_read_reg(base, reg);
+}
+
+static inline void
+nlm_write_reg_xkphys(uint64_t base, uint32_t reg, uint32_t val)
+{
+ nlm_write_reg(base, reg, val);
+}
+
+static inline uint64_t
+nlm_read_reg64_xkphys(uint64_t base, uint32_t reg)
+{
+ return nlm_read_reg64(base, reg);
+}
+
+static inline void
+nlm_write_reg64_xkphys(uint64_t base, uint32_t reg, uint64_t val)
+{
+ nlm_write_reg64(base, reg, val);
+}
+
+/* Location where IO base is mapped */
+extern uint64_t nlm_io_base;
+
+#if defined(CONFIG_CPU_XLP)
+static inline uint64_t
+nlm_pcicfg_base(uint32_t devoffset)
+{
+ return nlm_io_base + devoffset;
+}
+
+static inline uint64_t
+nlm_xkphys_map_pcibar0(uint64_t pcibase)
+{
+ uint64_t paddr;
+
+ paddr = nlm_read_reg(pcibase, 0x4) & ~0xfu;
+ return (uint64_t)0x9000000000000000 | paddr;
+}
+#elif defined(CONFIG_CPU_XLR)
+
+static inline uint64_t
+nlm_mmio_base(uint32_t devoffset)
+{
+ return nlm_io_base + devoffset;
+}
+#endif
+
+#endif