From: Kevin Cernekee <cernekee@gmail.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Subject: [PATCH 7/9] MIPS: BMIPS: Introduce bmips.h
Date: Sat, 05 Nov 2011 14:21:16 -0700 [thread overview]
Message-ID: <1c70a0e0f9e1a3967b60c4c2d1ec99bd@localhost> (raw)
In-Reply-To: <c2c8833593cb8eeef5c102468e105497@localhost>
bmips.h contains BMIPS definitions that are useful for SMP, vector
relocation, performance counters, etc.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
arch/mips/include/asm/bmips.h | 95 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 95 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/include/asm/bmips.h
diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
new file mode 100644
index 0000000..1d9130a
--- /dev/null
+++ b/arch/mips/include/asm/bmips.h
@@ -0,0 +1,95 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 by Kevin Cernekee (cernekee@gmail.com)
+ *
+ * Definitions for BMIPS processors
+ */
+#ifndef _ASM_BMIPS_H
+#define _ASM_BMIPS_H
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <asm/addrspace.h>
+#include <asm/mipsregs.h>
+
+/* NOTE: the CBR register returns a PA, and it can be above 0xff00_0000 */
+#define BMIPS_GET_CBR() ((void __iomem *)(CKSEG1 | \
+ (unsigned long) \
+ ((read_c0_brcm_cbr() >> 18) << 18)))
+
+#define BMIPS_RAC_CONFIG 0x00000000
+#define BMIPS_RAC_ADDRESS_RANGE 0x00000004
+#define BMIPS_RAC_CONFIG_1 0x00000008
+#define BMIPS_L2_CONFIG 0x0000000c
+#define BMIPS_LMB_CONTROL 0x0000001c
+#define BMIPS_SYSTEM_BASE 0x00000020
+#define BMIPS_PERF_GLOBAL_CONTROL 0x00020000
+#define BMIPS_PERF_CONTROL_0 0x00020004
+#define BMIPS_PERF_CONTROL_1 0x00020008
+#define BMIPS_PERF_COUNTER_0 0x00020010
+#define BMIPS_PERF_COUNTER_1 0x00020014
+#define BMIPS_PERF_COUNTER_2 0x00020018
+#define BMIPS_PERF_COUNTER_3 0x0002001c
+#define BMIPS_RELO_VECTOR_CONTROL_0 0x00030000
+#define BMIPS_RELO_VECTOR_CONTROL_1 0x00038000
+
+#define BMIPS_NMI_RESET_VEC 0x80000000
+#define BMIPS_WARM_RESTART_VEC 0x80000380
+
+#define ZSCM_REG_BASE 0x97000000
+
+#if !defined(__ASSEMBLY__)
+
+#include <linux/cpumask.h>
+#include <asm/r4kcache.h>
+
+extern struct plat_smp_ops bmips_smp_ops;
+extern char bmips_reset_nmi_vec;
+extern char bmips_reset_nmi_vec_end;
+extern char bmips_smp_movevec;
+extern char bmips_smp_int_vec;
+extern char bmips_smp_int_vec_end;
+extern int bmips_smp_enabled;
+extern cpumask_t bmips_booted_mask;
+
+extern void bmips_ebase_setup(void);
+extern asmlinkage void plat_wired_tlb_setup(void);
+
+static inline unsigned long bmips_read_zscm_reg(unsigned int offset)
+{
+ unsigned long ret;
+
+ cache_op(Index_Load_Tag_S, ZSCM_REG_BASE + offset);
+
+ __asm__ __volatile__(
+ ".set push\n"
+ ".set noreorder\n"
+ "sync\n"
+ "ssnop\n"
+ "ssnop\n"
+ "ssnop\n"
+ "ssnop\n"
+ "ssnop\n"
+ "ssnop\n"
+ "ssnop\n"
+ "mfc0 %0, $28, 3\n"
+ "ssnop\n"
+ ".set pop\n"
+ : "=&r" (ret) : : "memory");
+ return ret;
+}
+
+static inline void bmips_write_zscm_reg(unsigned int offset, unsigned long data)
+{
+ __write_32bit_c0_register($28, 3, data);
+ back_to_back_c0_hazard();
+ cache_op(Index_Store_Tag_S, ZSCM_REG_BASE + offset);
+ back_to_back_c0_hazard();
+}
+
+#endif /* !defined(__ASSEMBLY__) */
+
+#endif /* _ASM_BMIPS_H */
--
1.7.6.3
next prev parent reply other threads:[~2011-11-05 21:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-05 21:21 [PATCH RESEND 1/9] MIPS: Add local_flush_tlb_all_mm to clear all mm contexts on calling cpu Kevin Cernekee
2011-11-05 21:21 ` [PATCH 2/9] MIPS: BMIPS: Fix up Kconfig settings Kevin Cernekee
2011-11-05 21:21 ` [PATCH 3/9] MIPS: BMIPS: Add XKS01 feature flag to Kconfig Kevin Cernekee
2011-11-08 15:49 ` Ralf Baechle
2011-11-05 21:21 ` [PATCH 4/9] MIPS: Clean up whitespace warning in hazards.h Kevin Cernekee
2011-11-05 21:21 ` [PATCH 5/9] MIPS: BMIPS: Add CFLAGS, Makefile entries for BMIPS Kevin Cernekee
2011-11-05 21:21 ` [PATCH 6/9] MIPS: BMIPS: Add set/clear CP0 macros for BMIPS operations Kevin Cernekee
2011-11-05 21:21 ` Kevin Cernekee [this message]
2011-11-08 15:03 ` [PATCH 7/9] MIPS: BMIPS: Introduce bmips.h Ralf Baechle
2011-11-05 21:21 ` [PATCH 8/9] MIPS: Add board_* hooks for ebase and NMI Kevin Cernekee
2011-11-08 15:23 ` Ralf Baechle
2011-11-05 21:21 ` [PATCH 9/9] MIPS: BMIPS: Add SMP support code for BMIPS43xx/BMIPS5000 Kevin Cernekee
2011-11-08 15:56 ` Ralf Baechle
2011-11-08 16:47 ` [PATCH RESEND 1/9] MIPS: Add local_flush_tlb_all_mm to clear all mm contexts on calling cpu Ralf Baechle
2011-11-08 19:40 ` Kevin Cernekee
2011-11-09 5:33 ` Kevin Cernekee
2011-11-09 13:11 ` Ralf Baechle
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