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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-12 04:56:37 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-12 04:56:37 +0300
commitc0222ac086669a631814bbf857f8c8023452a4d7 (patch)
treebb1d9908031fcf69016eeefa7b35a4f68f414333 /include
parent140cd7fb04a4a2bc09a30980bc8104cc89e09330 (diff)
parente2965cd0003f222bd49f67907c2bc6ed691c6d20 (diff)
downloadlinux-c0222ac086669a631814bbf857f8c8023452a4d7.tar.xz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: "This is an unusually large pull request for MIPS - in parts because lots of patches missed the 3.18 deadline but primarily because some folks opened the flood gates. - Retire the MIPS-specific phys_t with the generic phys_addr_t. - Improvments for the backtrace code used by oprofile. - Better backtraces on SMP systems. - Cleanups for the Octeon platform code. - Cleanups and fixes for the Loongson platform code. - Cleanups and fixes to the firmware library. - Switch ATH79 platform to use the firmware library. - Grand overhault to the SEAD3 and Malta interrupt code. - Move the GIC interrupt code to drivers/irqchip - Lots of GIC cleanups and updates to the GIC code to use modern IRQ infrastructures and features of the kernel. - OF documentation updates for the GIC bindings - Move GIC clocksource driver to drivers/clocksource - Merge GIC clocksource driver with clockevent driver. - Further updates to bring the GIC clocksource driver up to date. - R3000 TLB code cleanups - Improvments to the Loongson 3 platform code. - Convert pr_warning to pr_warn. - Merge a bunch of small lantiq and ralink fixes that have been staged/lingering inside the openwrt tree for a while. - Update archhelp for IP22/IP32 - Fix a number of issues for Loongson 1B. - New clocksource and clockevent driver for Loongson 1B. - Further work on clk handling for Loongson 1B. - Platform work for Broadcom BMIPS. - Error handling cleanups for TurboChannel. - Fixes and optimization to the microMIPS support. - Option to disable the FTLB. - Dump more relevant information on machine check exception - Change binfmt to allow arch to examine PT_*PROC headers - Support for new style FPU register model in O32 - VDSO randomization. - BCM47xx cleanups - BCM47xx reimplement the way the kernel accesses NVRAM information. - Random cleanups - Add support for ATH25 platforms - Remove pointless locking code in some PCI platforms. - Some improvments to EVA support - Minor Alchemy cleanup" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits) MIPS: Add MFHC0 and MTHC0 instructions to uasm. MIPS: Cosmetic cleanups of page table headers. MIPS: Add CP0 macros for extended EntryLo registers MIPS: Remove now unused definition of phys_t. MIPS: Replace use of phys_t with phys_addr_t. MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig. MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO MIPS: <asm/types.h> fix indentation. MAINTAINERS: Add entry for BMIPS multiplatform kernel MIPS: Enable VDSO randomization MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration MIPS: Remove declaration of obsolete arch_init_clk_ops() MIPS: atomic.h: Reformat to fit in 79 columns MIPS: Apply `.insn' to fixup labels throughout MIPS: Fix microMIPS LL/SC immediate offsets MIPS: Kconfig: Only allow 32-bit microMIPS builds MIPS: signal.c: Fix an invalid cast in ISA mode bit handling MIPS: mm: Only build one microassembler that is suitable ...
Diffstat (limited to 'include')
-rw-r--r--include/dt-bindings/interrupt-controller/mips-gic.h9
-rw-r--r--include/linux/elf.h5
-rw-r--r--include/linux/irqchip/mips-gic.h249
3 files changed, 263 insertions, 0 deletions
diff --git a/include/dt-bindings/interrupt-controller/mips-gic.h b/include/dt-bindings/interrupt-controller/mips-gic.h
new file mode 100644
index 000000000000..cf35a577e371
--- /dev/null
+++ b/include/dt-bindings/interrupt-controller/mips-gic.h
@@ -0,0 +1,9 @@
+#ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
+#define _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#define GIC_SHARED 0
+#define GIC_LOCAL 1
+
+#endif
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 67a5fa7830c4..20fa8d8ae313 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -15,6 +15,11 @@
set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
#endif
+#ifndef SET_PERSONALITY2
+#define SET_PERSONALITY2(ex, state) \
+ SET_PERSONALITY(ex)
+#endif
+
#if ELF_CLASS == ELFCLASS32
extern Elf32_Dyn _DYNAMIC [];
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
new file mode 100644
index 000000000000..420f77b34d02
--- /dev/null
+++ b/include/linux/irqchip/mips-gic.h
@@ -0,0 +1,249 @@
+/*
+ * 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) 2000, 07 MIPS Technologies, Inc.
+ */
+#ifndef __LINUX_IRQCHIP_MIPS_GIC_H
+#define __LINUX_IRQCHIP_MIPS_GIC_H
+
+#include <linux/clocksource.h>
+
+#define GIC_MAX_INTRS 256
+
+/* Constants */
+#define GIC_POL_POS 1
+#define GIC_POL_NEG 0
+#define GIC_TRIG_EDGE 1
+#define GIC_TRIG_LEVEL 0
+#define GIC_TRIG_DUAL_ENABLE 1
+#define GIC_TRIG_DUAL_DISABLE 0
+
+#define MSK(n) ((1 << (n)) - 1)
+
+/* Accessors */
+#define GIC_REG(segment, offset) (segment##_##SECTION_OFS + offset##_##OFS)
+
+/* GIC Address Space */
+#define SHARED_SECTION_OFS 0x0000
+#define SHARED_SECTION_SIZE 0x8000
+#define VPE_LOCAL_SECTION_OFS 0x8000
+#define VPE_LOCAL_SECTION_SIZE 0x4000
+#define VPE_OTHER_SECTION_OFS 0xc000
+#define VPE_OTHER_SECTION_SIZE 0x4000
+#define USM_VISIBLE_SECTION_OFS 0x10000
+#define USM_VISIBLE_SECTION_SIZE 0x10000
+
+/* Register Map for Shared Section */
+
+#define GIC_SH_CONFIG_OFS 0x0000
+
+/* Shared Global Counter */
+#define GIC_SH_COUNTER_31_00_OFS 0x0010
+#define GIC_SH_COUNTER_63_32_OFS 0x0014
+#define GIC_SH_REVISIONID_OFS 0x0020
+
+/* Convert an interrupt number to a byte offset/bit for multi-word registers */
+#define GIC_INTR_OFS(intr) (((intr) / 32) * 4)
+#define GIC_INTR_BIT(intr) ((intr) % 32)
+
+/* Polarity : Reset Value is always 0 */
+#define GIC_SH_SET_POLARITY_OFS 0x0100
+
+/* Triggering : Reset Value is always 0 */
+#define GIC_SH_SET_TRIGGER_OFS 0x0180
+
+/* Dual edge triggering : Reset Value is always 0 */
+#define GIC_SH_SET_DUAL_OFS 0x0200
+
+/* Set/Clear corresponding bit in Edge Detect Register */
+#define GIC_SH_WEDGE_OFS 0x0280
+
+/* Mask manipulation */
+#define GIC_SH_RMASK_OFS 0x0300
+#define GIC_SH_SMASK_OFS 0x0380
+
+/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
+#define GIC_SH_MASK_OFS 0x0400
+
+/* Pending Global Interrupts (RO) */
+#define GIC_SH_PEND_OFS 0x0480
+
+/* Maps Interrupt X to a Pin */
+#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
+#define GIC_SH_MAP_TO_PIN(intr) (4 * (intr))
+
+/* Maps Interrupt X to a VPE */
+#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
+#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
+ ((32 * (intr)) + (((vpe) / 32) * 4))
+#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe) (1 << ((vpe) % 32))
+
+/* Register Map for Local Section */
+#define GIC_VPE_CTL_OFS 0x0000
+#define GIC_VPE_PEND_OFS 0x0004
+#define GIC_VPE_MASK_OFS 0x0008
+#define GIC_VPE_RMASK_OFS 0x000c
+#define GIC_VPE_SMASK_OFS 0x0010
+#define GIC_VPE_WD_MAP_OFS 0x0040
+#define GIC_VPE_COMPARE_MAP_OFS 0x0044
+#define GIC_VPE_TIMER_MAP_OFS 0x0048
+#define GIC_VPE_FDC_MAP_OFS 0x004c
+#define GIC_VPE_PERFCTR_MAP_OFS 0x0050
+#define GIC_VPE_SWINT0_MAP_OFS 0x0054
+#define GIC_VPE_SWINT1_MAP_OFS 0x0058
+#define GIC_VPE_OTHER_ADDR_OFS 0x0080
+#define GIC_VPE_WD_CONFIG0_OFS 0x0090
+#define GIC_VPE_WD_COUNT0_OFS 0x0094
+#define GIC_VPE_WD_INITIAL0_OFS 0x0098
+#define GIC_VPE_COMPARE_LO_OFS 0x00a0
+#define GIC_VPE_COMPARE_HI_OFS 0x00a4
+
+#define GIC_VPE_EIC_SHADOW_SET_BASE_OFS 0x0100
+#define GIC_VPE_EIC_SS(intr) (4 * (intr))
+
+#define GIC_VPE_EIC_VEC_BASE_OFS 0x0800
+#define GIC_VPE_EIC_VEC(intr) (4 * (intr))
+
+#define GIC_VPE_TENABLE_NMI_OFS 0x1000
+#define GIC_VPE_TENABLE_YQ_OFS 0x1004
+#define GIC_VPE_TENABLE_INT_31_0_OFS 0x1080
+#define GIC_VPE_TENABLE_INT_63_32_OFS 0x1084
+
+/* User Mode Visible Section Register Map */
+#define GIC_UMV_SH_COUNTER_31_00_OFS 0x0000
+#define GIC_UMV_SH_COUNTER_63_32_OFS 0x0004
+
+/* Masks */
+#define GIC_SH_CONFIG_COUNTSTOP_SHF 28
+#define GIC_SH_CONFIG_COUNTSTOP_MSK (MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
+
+#define GIC_SH_CONFIG_COUNTBITS_SHF 24
+#define GIC_SH_CONFIG_COUNTBITS_MSK (MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)
+
+#define GIC_SH_CONFIG_NUMINTRS_SHF 16
+#define GIC_SH_CONFIG_NUMINTRS_MSK (MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)
+
+#define GIC_SH_CONFIG_NUMVPES_SHF 0
+#define GIC_SH_CONFIG_NUMVPES_MSK (MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
+
+#define GIC_SH_WEDGE_SET(intr) ((intr) | (0x1 << 31))
+#define GIC_SH_WEDGE_CLR(intr) ((intr) & ~(0x1 << 31))
+
+#define GIC_MAP_TO_PIN_SHF 31
+#define GIC_MAP_TO_PIN_MSK (MSK(1) << GIC_MAP_TO_PIN_SHF)
+#define GIC_MAP_TO_NMI_SHF 30
+#define GIC_MAP_TO_NMI_MSK (MSK(1) << GIC_MAP_TO_NMI_SHF)
+#define GIC_MAP_TO_YQ_SHF 29
+#define GIC_MAP_TO_YQ_MSK (MSK(1) << GIC_MAP_TO_YQ_SHF)
+#define GIC_MAP_SHF 0
+#define GIC_MAP_MSK (MSK(6) << GIC_MAP_SHF)
+
+/* GIC_VPE_CTL Masks */
+#define GIC_VPE_CTL_FDC_RTBL_SHF 4
+#define GIC_VPE_CTL_FDC_RTBL_MSK (MSK(1) << GIC_VPE_CTL_FDC_RTBL_SHF)
+#define GIC_VPE_CTL_SWINT_RTBL_SHF 3
+#define GIC_VPE_CTL_SWINT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_SWINT_RTBL_SHF)
+#define GIC_VPE_CTL_PERFCNT_RTBL_SHF 2
+#define GIC_VPE_CTL_PERFCNT_RTBL_MSK (MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
+#define GIC_VPE_CTL_TIMER_RTBL_SHF 1
+#define GIC_VPE_CTL_TIMER_RTBL_MSK (MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
+#define GIC_VPE_CTL_EIC_MODE_SHF 0
+#define GIC_VPE_CTL_EIC_MODE_MSK (MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)
+
+/* GIC_VPE_PEND Masks */
+#define GIC_VPE_PEND_WD_SHF 0
+#define GIC_VPE_PEND_WD_MSK (MSK(1) << GIC_VPE_PEND_WD_SHF)
+#define GIC_VPE_PEND_CMP_SHF 1
+#define GIC_VPE_PEND_CMP_MSK (MSK(1) << GIC_VPE_PEND_CMP_SHF)
+#define GIC_VPE_PEND_TIMER_SHF 2
+#define GIC_VPE_PEND_TIMER_MSK (MSK(1) << GIC_VPE_PEND_TIMER_SHF)
+#define GIC_VPE_PEND_PERFCOUNT_SHF 3
+#define GIC_VPE_PEND_PERFCOUNT_MSK (MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
+#define GIC_VPE_PEND_SWINT0_SHF 4
+#define GIC_VPE_PEND_SWINT0_MSK (MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
+#define GIC_VPE_PEND_SWINT1_SHF 5
+#define GIC_VPE_PEND_SWINT1_MSK (MSK(1) << GIC_VPE_PEND_SWINT1_SHF)
+
+/* GIC_VPE_RMASK Masks */
+#define GIC_VPE_RMASK_WD_SHF 0
+#define GIC_VPE_RMASK_WD_MSK (MSK(1) << GIC_VPE_RMASK_WD_SHF)
+#define GIC_VPE_RMASK_CMP_SHF 1
+#define GIC_VPE_RMASK_CMP_MSK (MSK(1) << GIC_VPE_RMASK_CMP_SHF)
+#define GIC_VPE_RMASK_TIMER_SHF 2
+#define GIC_VPE_RMASK_TIMER_MSK (MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
+#define GIC_VPE_RMASK_PERFCNT_SHF 3
+#define GIC_VPE_RMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
+#define GIC_VPE_RMASK_SWINT0_SHF 4
+#define GIC_VPE_RMASK_SWINT0_MSK (MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
+#define GIC_VPE_RMASK_SWINT1_SHF 5
+#define GIC_VPE_RMASK_SWINT1_MSK (MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)
+
+/* GIC_VPE_SMASK Masks */
+#define GIC_VPE_SMASK_WD_SHF 0
+#define GIC_VPE_SMASK_WD_MSK (MSK(1) << GIC_VPE_SMASK_WD_SHF)
+#define GIC_VPE_SMASK_CMP_SHF 1
+#define GIC_VPE_SMASK_CMP_MSK (MSK(1) << GIC_VPE_SMASK_CMP_SHF)
+#define GIC_VPE_SMASK_TIMER_SHF 2
+#define GIC_VPE_SMASK_TIMER_MSK (MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
+#define GIC_VPE_SMASK_PERFCNT_SHF 3
+#define GIC_VPE_SMASK_PERFCNT_MSK (MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
+#define GIC_VPE_SMASK_SWINT0_SHF 4
+#define GIC_VPE_SMASK_SWINT0_MSK (MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
+#define GIC_VPE_SMASK_SWINT1_SHF 5
+#define GIC_VPE_SMASK_SWINT1_MSK (MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)
+
+/* GIC nomenclature for Core Interrupt Pins. */
+#define GIC_CPU_INT0 0 /* Core Interrupt 2 */
+#define GIC_CPU_INT1 1 /* . */
+#define GIC_CPU_INT2 2 /* . */
+#define GIC_CPU_INT3 3 /* . */
+#define GIC_CPU_INT4 4 /* . */
+#define GIC_CPU_INT5 5 /* Core Interrupt 7 */
+
+/* Add 2 to convert GIC CPU pin to core interrupt */
+#define GIC_CPU_PIN_OFFSET 2
+
+/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */
+#define GIC_CPU_TO_VEC_OFFSET 2
+
+/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
+#define GIC_PIN_TO_VEC_OFFSET 1
+
+/* Local GIC interrupts. */
+#define GIC_LOCAL_INT_WD 0 /* GIC watchdog */
+#define GIC_LOCAL_INT_COMPARE 1 /* GIC count and compare timer */
+#define GIC_LOCAL_INT_TIMER 2 /* CPU timer interrupt */
+#define GIC_LOCAL_INT_PERFCTR 3 /* CPU performance counter */
+#define GIC_LOCAL_INT_SWINT0 4 /* CPU software interrupt 0 */
+#define GIC_LOCAL_INT_SWINT1 5 /* CPU software interrupt 1 */
+#define GIC_LOCAL_INT_FDC 6 /* CPU fast debug channel */
+#define GIC_NUM_LOCAL_INTRS 7
+
+/* Convert between local/shared IRQ number and GIC HW IRQ number. */
+#define GIC_LOCAL_HWIRQ_BASE 0
+#define GIC_LOCAL_TO_HWIRQ(x) (GIC_LOCAL_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_LOCAL(x) ((x) - GIC_LOCAL_HWIRQ_BASE)
+#define GIC_SHARED_HWIRQ_BASE GIC_NUM_LOCAL_INTRS
+#define GIC_SHARED_TO_HWIRQ(x) (GIC_SHARED_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
+
+extern unsigned int gic_present;
+
+extern void gic_init(unsigned long gic_base_addr,
+ unsigned long gic_addrspace_size, unsigned int cpu_vec,
+ unsigned int irqbase);
+extern void gic_clocksource_init(unsigned int);
+extern cycle_t gic_read_count(void);
+extern unsigned int gic_get_count_width(void);
+extern cycle_t gic_read_compare(void);
+extern void gic_write_compare(cycle_t cnt);
+extern void gic_write_cpu_compare(cycle_t cnt, int cpu);
+extern void gic_send_ipi(unsigned int intr);
+extern unsigned int plat_ipi_call_int_xlate(unsigned int);
+extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
+extern unsigned int gic_get_timer_pending(void);
+extern int gic_get_c0_compare_int(void);
+extern int gic_get_c0_perfcount_int(void);
+#endif /* __LINUX_IRQCHIP_MIPS_GIC_H */