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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-26 23:43:48 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-10-26 23:43:48 +0200 |
commit | cc10ad25bbca3d2925adc32d51cb7a10b837d32c (patch) | |
tree | 1e70ee2e7a4486053ec04ef34abfc03b93c43e8f /arch/mips/loongson64/loongson-3/smp.c | |
parent | Merge tag 'mips_fixes_4.20_1' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
parent | MIPS: Cleanup DSP ASE detection (diff) | |
download | linux-cc10ad25bbca3d2925adc32d51cb7a10b837d32c.tar.xz linux-cc10ad25bbca3d2925adc32d51cb7a10b837d32c.zip |
Merge tag 'mips_4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Paul Burton:
- kexec support for the generic MIPS platform when running on a CPU
including the MIPS Coherence Manager & related hardware.
- Improvements to the definition of memory barriers used around MMIO
accesses, and fixes in their use.
- Switch to CONFIG_NO_BOOTMEM from Mike Rapoport, finally dropping
reliance on the old bootmem code.
- A number of fixes & improvements for Loongson 3 systems.
- DT & config updates for the Microsemi Ocelot platform.
- Workaround to enable USB power on the Netgear WNDR3400v3.
- Various cleanups & fixes.
* tag 'mips_4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (51 commits)
MIPS: Cleanup DSP ASE detection
MIPS: dts: Change upper case to lower case
MIPS: generic: Add Network, SPI and I2C to ocelot_defconfig
MIPS: Loongson-3: Fix BRIDGE irq delivery problem
MIPS: Loongson-3: Fix CPU UART irq delivery problem
MIPS: Remove unused PREF, PREFE & PREFX macros
MIPS: lib: Use kernel_pref & user_pref in memcpy()
MIPS: Remove unused CAT macro
MIPS: Add kernel_pref & user_pref helpers
MIPS: Remove unused TTABLE macro
MIPS: Remove unused PIC macros
MIPS: Remove unused MOVN & MOVZ macros
MIPS: Provide actually relaxed MMIO accessors
MIPS: Enforce strong ordering for MMIO accessors
MIPS: Correct `mmiowb' barrier for `wbflush' platforms
MIPS: Define MMIO ordering barriers
MIPS: mscc: add PCB120 to the ocelot fitImage
MIPS: mscc: add DT for Ocelot PCB120
MIPS: memset: Limit excessive `noreorder' assembly mode use
MIPS: memset: Fix CPU_DADDI_WORKAROUNDS `small_fixup' regression
...
Diffstat (limited to 'arch/mips/loongson64/loongson-3/smp.c')
-rw-r--r-- | arch/mips/loongson64/loongson-3/smp.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c index fea95d003269..b5c1e0aa955e 100644 --- a/arch/mips/loongson64/loongson-3/smp.c +++ b/arch/mips/loongson64/loongson-3/smp.c @@ -21,6 +21,7 @@ #include <linux/sched/task_stack.h> #include <linux/smp.h> #include <linux/cpufreq.h> +#include <linux/kexec.h> #include <asm/processor.h> #include <asm/time.h> #include <asm/clock.h> @@ -349,7 +350,7 @@ static void loongson3_smp_finish(void) write_c0_compare(read_c0_count() + mips_hpt_frequency/HZ); local_irq_enable(); loongson3_ipi_write64(0, - (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x0)); + ipi_mailbox_buf[cpu_logical_map(cpu)] + 0x0); pr_info("CPU#%d finished, CP0_ST=%x\n", smp_processor_id(), read_c0_status()); } @@ -416,13 +417,13 @@ static int loongson3_boot_secondary(int cpu, struct task_struct *idle) cpu, startargs[0], startargs[1], startargs[2]); loongson3_ipi_write64(startargs[3], - (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x18)); + ipi_mailbox_buf[cpu_logical_map(cpu)] + 0x18); loongson3_ipi_write64(startargs[2], - (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x10)); + ipi_mailbox_buf[cpu_logical_map(cpu)] + 0x10); loongson3_ipi_write64(startargs[1], - (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x8)); + ipi_mailbox_buf[cpu_logical_map(cpu)] + 0x8); loongson3_ipi_write64(startargs[0], - (void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x0)); + ipi_mailbox_buf[cpu_logical_map(cpu)] + 0x0); return 0; } @@ -749,4 +750,7 @@ const struct plat_smp_ops loongson3_smp_ops = { .cpu_disable = loongson3_cpu_disable, .cpu_die = loongson3_cpu_die, #endif +#ifdef CONFIG_KEXEC + .kexec_nonboot_cpu = kexec_nonboot_cpu_jump, +#endif }; |