diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 20:43:33 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 20:43:33 -0700 |
commit | 7318413077a5141a50a753b1fab687b7907eef16 (patch) | |
tree | 21a59cf856f4bb762f6d3d0635c898ca6b24cff6 /arch/mips/kernel/r4k_switch.S | |
parent | 8d93c7a4315711ea0f7a95ca353a89c4ed0763fb (diff) | |
parent | 35eed7cb2cf1c58a225a0140729ba787fbb06c88 (diff) |
Merge branch '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for 4.14 for MIPS; below a summary of
the non-merge commits:
CM:
- Rename mips_cm_base to mips_gcr_base
- Specify register size when generating accessors
- Use BIT/GENMASK for register fields, order & drop shifts
- Add cluster & block args to mips_cm_lock_other()
CPC:
- Use common CPS accessor generation macros
- Use BIT/GENMASK for register fields, order & drop shifts
- Introduce register modify (set/clear/change) accessors
- Use change_*, set_* & clear_* where appropriate
- Add CM/CPC 3.5 register definitions
- Use GlobalNumber macros rather than magic numbers
- Have asm/mips-cps.h include CM & CPC headers
- Cluster support for topology functions
- Detect CPUs in secondary clusters
CPS:
- Read GIC_VL_IDENT directly, not via irqchip driver
DMA:
- Consolidate coherent and non-coherent dma_alloc code
- Don't use dma_cache_sync to implement fd_cacheflush
FPU emulation / FP assist code:
- Another series of 14 commits fixing corner cases such as NaN
propgagation and other special input values.
- Zero bits 32-63 of the result for a CLASS.D instruction.
- Enhanced statics via debugfs
- Do not use bools for arithmetic. GCC 7.1 moans about this.
- Correct user fault_addr type
Generic MIPS:
- Enhancement of stack backtraces
- Cleanup from non-existing options
- Handle non word sized instructions when examining frame
- Fix detection and decoding of ADDIUSP instruction
- Fix decoding of SWSP16 instruction
- Refactor handling of stack pointer in get_frame_info
- Remove unreachable code from force_fcr31_sig()
- Convert to using %pOF instead of full_name
- Remove the R6000 support.
- Move FP code from *_switch.S to *_fpu.S
- Remove unused ST_OFF from r2300_switch.S
- Allow platform to specify multiple its.S files
- Add #includes to various files to ensure code builds reliable and
without warning..
- Remove __invalidate_kernel_vmap_range
- Remove plat_timer_setup
- Declare various variables & functions static
- Abstract CPU core & VP(E) ID access through accessor functions
- Store core & VP IDs in GlobalNumber-style variable
- Unify checks for sibling CPUs
- Add CPU cluster number accessors
- Prevent direct use of generic_defconfig
- Make CONFIG_MIPS_MT_SMP default y
- Add __ioread64_copy
- Remove unnecessary inclusions of linux/irqchip/mips-gic.h
GIC:
- Introduce asm/mips-gic.h with accessor functions
- Use new GIC accessor functions in mips-gic-timer
- Remove counter access functions from irq-mips-gic.c
- Remove gic_read_local_vp_id() from irq-mips-gic.c
- Simplify shared interrupt pending/mask reads in irq-mips-gic.c
- Simplify gic_local_irq_domain_map() in irq-mips-gic.c
- Drop gic_(re)set_mask() functions in irq-mips-gic.c
- Remove gic_set_polarity(), gic_set_trigger(), gic_set_dual_edge(),
gic_map_to_pin() and gic_map_to_vpe() from irq-mips-gic.c.
- Convert remaining shared reg access, local int mask access and
remaining local reg access to new accessors
- Move GIC_LOCAL_INT_* to asm/mips-gic.h
- Remove GIC_CPU_INT* macros from irq-mips-gic.c
- Move various definitions to the driver
- Remove gic_get_usm_range()
- Remove __gic_irq_dispatch() forward declaration
- Remove gic_init()
- Use mips_gic_present() in place of gic_present and remove
gic_present
- Move gic_get_c0_*_int() to asm/mips-gic.h
- Remove linux/irqchip/mips-gic.h
- Inline __gic_init()
- Inline gic_basic_init()
- Make pcpu_masks a per-cpu variable
- Use pcpu_masks to avoid reading GIC_SH_MASK*
- Clean up mti, reserved-cpu-vectors handling
- Use cpumask_first_and() in gic_set_affinity()
- Let the core set struct irq_common_data affinity
microMIPS:
- Fix microMIPS stack unwinding on big endian systems
MIPS-GIC:
- SYNC after enabling GIC region
NUMA:
- Remove the unused parent_node() macro
R6:
- Constify r2_decoder_tables
- Add accessor & bit definitions for GlobalNumber
SMP:
- Constify smp ops
- Allow boot_secondary SMP op to return errors
VDSO:
- Drop gic_get_usm_range() usage
- Avoid use of linux/irqchip/mips-gic.h
Platform changes:
Alchemy:
- Add devboard machine type to cpuinfo
- update cpu feature overrides
- Threaded carddetect irqs for devboards
AR7:
- allow NULL clock for clk_get_rate
BCM63xx:
- Fix ENETDMA_6345_MAXBURST_REG offset
- Allow NULL clock for clk_get_rate
CI20:
- Enable GPIO and RTC drivers in defconfig
- Add ethernet and fixed-regulator nodes to DTS
Generic platform:
- Move Boston and NI 169445 FIT image source to their own files
- Include asm/bootinfo.h for plat_fdt_relocated()
- Include asm/time.h for get_c0_*_int()
- Include asm/bootinfo.h for plat_fdt_relocated()
- Include asm/time.h for get_c0_*_int()
- Allow filtering enabled boards by requirements
- Don't explicitly disable CONFIG_USB_SUPPORT
- Bump default NR_CPUS to 16
JZ4700:
- Probe the jz4740-rtc driver from devicetree
Lantiq:
- Drop check of boot select from the spi-falcon driver.
- Drop check of boot select from the lantiq-flash MTD driver.
- Access boot cause register in the watchdog driver through regmap
- Add device tree binding documentation for the watchdog driver
- Add docs for the RCU DT bindings.
- Convert the fpi bus driver to a platform_driver
- Remove ltq_reset_cause() and ltq_boot_select(
- Switch to a proper reset driver
- Switch to a new drivers/soc GPHY driver
- Add an USB PHY driver for the Lantiq SoCs using the RCU module
- Use of_platform_default_populate instead of __dt_register_buses
- Enable MFD_SYSCON to be able to use it for the RCU MFD
- Replace ltq_boot_select() with dummy implementation.
Loongson 2F:
- Allow NULL clock for clk_get_rate
Malta:
- Use new GIC accessor functions
NI 169445:
- Add support for NI 169445 board.
- Only include in 32r2el kernels
Octeon:
- Add support for watchdog of 78XX SOCs.
- Add support for watchdog of CN68XX SOCs.
- Expose support for mips32r1, mips32r2 and mips64r1
- Enable more drivers in config file
- Add support for accessing the boot vector.
- Remove old boot vector code from watchdog driver
- Define watchdog registers for 70xx, 73xx, 78xx, F75xx.
- Make CSR functions node aware.
- Allow access to CIU3 IRQ domains.
- Misc cleanups in the watchdog driver
Omega2+:
- New board, add support and defconfig
Pistachio:
- Enable Root FS on NFS in defconfig
Ralink:
- Add Mediatek MT7628A SoC
- Allow NULL clock for clk_get_rate
- Explicitly request exclusive reset control in the pci-mt7620 PCI driver.
SEAD3:
- Only include in 32 bit kernels by default
VoCore:
- Add VoCore as a vendor t0 dt-bindings
- Add defconfig file"
* '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (167 commits)
MIPS: Refactor handling of stack pointer in get_frame_info
MIPS: Stacktrace: Fix microMIPS stack unwinding on big endian systems
MIPS: microMIPS: Fix decoding of swsp16 instruction
MIPS: microMIPS: Fix decoding of addiusp instruction
MIPS: microMIPS: Fix detection of addiusp instruction
MIPS: Handle non word sized instructions when examining frame
MIPS: ralink: allow NULL clock for clk_get_rate
MIPS: Loongson 2F: allow NULL clock for clk_get_rate
MIPS: BCM63XX: allow NULL clock for clk_get_rate
MIPS: AR7: allow NULL clock for clk_get_rate
MIPS: BCM63XX: fix ENETDMA_6345_MAXBURST_REG offset
mips: Save all registers when saving the frame
MIPS: Add DWARF unwinding to assembly
MIPS: Make SAVE_SOME more standard
MIPS: Fix issues in backtraces
MIPS: jz4780: DTS: Probe the jz4740-rtc driver from devicetree
MIPS: Ci20: Enable RTC driver
watchdog: octeon-wdt: Add support for 78XX SOCs.
watchdog: octeon-wdt: Add support for cn68XX SOCs.
watchdog: octeon-wdt: File cleaning.
...
Diffstat (limited to 'arch/mips/kernel/r4k_switch.S')
-rw-r--r-- | arch/mips/kernel/r4k_switch.S | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index 7b386d54fd65..17cf9341c1cf 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -12,8 +12,6 @@ */ #include <asm/asm.h> #include <asm/cachectl.h> -#include <asm/export.h> -#include <asm/fpregdef.h> #include <asm/mipsregs.h> #include <asm/asm-offsets.h> #include <asm/regdef.h> @@ -22,10 +20,6 @@ #include <asm/asmmacro.h> -/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */ -#undef fp - -#ifndef USE_ALTERNATE_RESUME_IMPL /* * task_struct *resume(task_struct *prev, task_struct *next, * struct thread_info *next_ti) @@ -63,200 +57,3 @@ move v0, a0 jr ra END(resume) - -#endif /* USE_ALTERNATE_RESUME_IMPL */ - -/* - * Save a thread's fp context. - */ -LEAF(_save_fp) -EXPORT_SYMBOL(_save_fp) -#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \ - defined(CONFIG_CPU_MIPS32_R6) - mfc0 t0, CP0_STATUS -#endif - fpu_save_double a0 t0 t1 # clobbers t1 - jr ra - END(_save_fp) - -/* - * Restore a thread's fp context. - */ -LEAF(_restore_fp) -#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \ - defined(CONFIG_CPU_MIPS32_R6) - mfc0 t0, CP0_STATUS -#endif - fpu_restore_double a0 t0 t1 # clobbers t1 - jr ra - END(_restore_fp) - -#ifdef CONFIG_CPU_HAS_MSA - -/* - * Save a thread's MSA vector context. - */ -LEAF(_save_msa) -EXPORT_SYMBOL(_save_msa) - msa_save_all a0 - jr ra - END(_save_msa) - -/* - * Restore a thread's MSA vector context. - */ -LEAF(_restore_msa) - msa_restore_all a0 - jr ra - END(_restore_msa) - -LEAF(_init_msa_upper) - msa_init_all_upper - jr ra - END(_init_msa_upper) - -#endif - -/* - * Load the FPU with signalling NANS. This bit pattern we're using has - * the property that no matter whether considered as single or as double - * precision represents signaling NANS. - * - * The value to initialize fcr31 to comes in $a0. - */ - - .set push - SET_HARDFLOAT - -LEAF(_init_fpu) - mfc0 t0, CP0_STATUS - li t1, ST0_CU1 - or t0, t1 - mtc0 t0, CP0_STATUS - enable_fpu_hazard - - ctc1 a0, fcr31 - - li t1, -1 # SNaN - -#ifdef CONFIG_64BIT - sll t0, t0, 5 - bgez t0, 1f # 16 / 32 register mode? - - dmtc1 t1, $f1 - dmtc1 t1, $f3 - dmtc1 t1, $f5 - dmtc1 t1, $f7 - dmtc1 t1, $f9 - dmtc1 t1, $f11 - dmtc1 t1, $f13 - dmtc1 t1, $f15 - dmtc1 t1, $f17 - dmtc1 t1, $f19 - dmtc1 t1, $f21 - dmtc1 t1, $f23 - dmtc1 t1, $f25 - dmtc1 t1, $f27 - dmtc1 t1, $f29 - dmtc1 t1, $f31 -1: -#endif - -#ifdef CONFIG_CPU_MIPS32 - mtc1 t1, $f0 - mtc1 t1, $f1 - mtc1 t1, $f2 - mtc1 t1, $f3 - mtc1 t1, $f4 - mtc1 t1, $f5 - mtc1 t1, $f6 - mtc1 t1, $f7 - mtc1 t1, $f8 - mtc1 t1, $f9 - mtc1 t1, $f10 - mtc1 t1, $f11 - mtc1 t1, $f12 - mtc1 t1, $f13 - mtc1 t1, $f14 - mtc1 t1, $f15 - mtc1 t1, $f16 - mtc1 t1, $f17 - mtc1 t1, $f18 - mtc1 t1, $f19 - mtc1 t1, $f20 - mtc1 t1, $f21 - mtc1 t1, $f22 - mtc1 t1, $f23 - mtc1 t1, $f24 - mtc1 t1, $f25 - mtc1 t1, $f26 - mtc1 t1, $f27 - mtc1 t1, $f28 - mtc1 t1, $f29 - mtc1 t1, $f30 - mtc1 t1, $f31 - -#if defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6) - .set push - .set MIPS_ISA_LEVEL_RAW - .set fp=64 - sll t0, t0, 5 # is Status.FR set? - bgez t0, 1f # no: skip setting upper 32b - - mthc1 t1, $f0 - mthc1 t1, $f1 - mthc1 t1, $f2 - mthc1 t1, $f3 - mthc1 t1, $f4 - mthc1 t1, $f5 - mthc1 t1, $f6 - mthc1 t1, $f7 - mthc1 t1, $f8 - mthc1 t1, $f9 - mthc1 t1, $f10 - mthc1 t1, $f11 - mthc1 t1, $f12 - mthc1 t1, $f13 - mthc1 t1, $f14 - mthc1 t1, $f15 - mthc1 t1, $f16 - mthc1 t1, $f17 - mthc1 t1, $f18 - mthc1 t1, $f19 - mthc1 t1, $f20 - mthc1 t1, $f21 - mthc1 t1, $f22 - mthc1 t1, $f23 - mthc1 t1, $f24 - mthc1 t1, $f25 - mthc1 t1, $f26 - mthc1 t1, $f27 - mthc1 t1, $f28 - mthc1 t1, $f29 - mthc1 t1, $f30 - mthc1 t1, $f31 -1: .set pop -#endif /* CONFIG_CPU_MIPS32_R2 || CONFIG_CPU_MIPS32_R6 */ -#else - .set MIPS_ISA_ARCH_LEVEL_RAW - dmtc1 t1, $f0 - dmtc1 t1, $f2 - dmtc1 t1, $f4 - dmtc1 t1, $f6 - dmtc1 t1, $f8 - dmtc1 t1, $f10 - dmtc1 t1, $f12 - dmtc1 t1, $f14 - dmtc1 t1, $f16 - dmtc1 t1, $f18 - dmtc1 t1, $f20 - dmtc1 t1, $f22 - dmtc1 t1, $f24 - dmtc1 t1, $f26 - dmtc1 t1, $f28 - dmtc1 t1, $f30 -#endif - jr ra - END(_init_fpu) - - .set pop /* SET_HARDFLOAT */ |