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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 11:17:23 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 11:17:23 -0800
commit8feed3efa8022107bcb3432ac3ec9917e078ae70 (patch)
treed7074276e5657c1ba71cbcb08f730bf86bf24009 /arch/parisc
parentMerge tag 's390-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux (diff)
parentparisc: use memblock_alloc() instead of custom get_memblock() (diff)
downloadlinux-dev-8feed3efa8022107bcb3432ac3ec9917e078ae70.tar.xz
linux-dev-8feed3efa8022107bcb3432ac3ec9917e078ae70.zip
Merge branch 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller: "The most important changes in this patch set are: - DMA-related cleanups for parisc with the aim to move anything not required by drivers out of <asm/dma-mapping.h>, by Christoph Hellwig - Switch to memblock_alloc(), by Mike Rapoport - Makefile cleanups by Masahiro Yamada - Switch to bust_spinlocks(), by Sergey Senozhatsky - Improved initial SMP affinity selection for IRQs - Added IPI- and rescheduling interrupts in /proc/interrupts output" * 'parisc-5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: (21 commits) parisc: use memblock_alloc() instead of custom get_memblock() parisc: Add constants for various PDC firmware calls parisc: Add constant for PDC_PAT_COMPLEX firmware call parisc: Show machine product number during boot parisc: Add constants for PDC_RELOCATE PDC call parisc: Add PDC_CRASH_PREP PDC function number parisc: Use F_EXTEND() macro in iosapic code parisc: remove the HBA_DATA macro parisc/lba_pci: use container_of in LBA_DEV parisc/dino: use container_of in DINO_DEV parisc: properly type the return value of parisc_walk_tree parisc: properly type the iommu field in struct pci_hba_data parisc: turn GET_IOC into an inline function parisc: move internal implementation details out of <asm/dma-mapping.h> parisc: don't include <asm/cacheflush.h> in <asm/dma-mapping.h> parisc: remove meaningless ccflags-y in arch/parisc/boot/Makefile parisc: replace oops_in_progress manipulation with bust_spinlocks() parisc: Improve initial IRQ to CPU assignment parisc: Count IPI function call interrupts parisc: Show rescheduling interrupts on SMP machines only ...
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/boot/Makefile6
-rw-r--r--arch/parisc/include/asm/dma-mapping.h46
-rw-r--r--arch/parisc/include/asm/hardirq.h1
-rw-r--r--arch/parisc/include/asm/pci.h4
-rw-r--r--arch/parisc/include/asm/pdc.h1
-rw-r--r--arch/parisc/include/asm/pdcpat.h4
-rw-r--r--arch/parisc/include/uapi/asm/pdc.h26
-rw-r--r--arch/parisc/kernel/firmware.c24
-rw-r--r--arch/parisc/kernel/irq.c19
-rw-r--r--arch/parisc/kernel/processor.c9
-rw-r--r--arch/parisc/kernel/setup.c1
-rw-r--r--arch/parisc/kernel/smp.c1
-rw-r--r--arch/parisc/kernel/traps.c4
-rw-r--r--arch/parisc/mm/init.c52
14 files changed, 101 insertions, 97 deletions
diff --git a/arch/parisc/boot/Makefile b/arch/parisc/boot/Makefile
index cad68a584884..41cce0706f80 100644
--- a/arch/parisc/boot/Makefile
+++ b/arch/parisc/boot/Makefile
@@ -2,12 +2,6 @@
# Makefile for the linux parisc-specific parts of the boot image creator.
#
-COMPILE_VERSION := __linux_compile_version_id__`hostname | \
- tr -c '[0-9A-Za-z]' '_'`__`date | \
- tr -c '[0-9A-Za-z]' '_'`_t
-
-ccflags-y := -DCOMPILE_VERSION=$(COMPILE_VERSION) -gstabs -I.
-
targets := image
targets += bzImage
subdir- := compressed
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 44a9f97194aa..d5bd94247371 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -2,8 +2,6 @@
#ifndef _PARISC_DMA_MAPPING_H
#define _PARISC_DMA_MAPPING_H
-#include <asm/cacheflush.h>
-
/*
** We need to support 4 different coherent dma models with one binary:
**
@@ -28,48 +26,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return hppa_dma_ops;
}
-static inline void *
-parisc_walk_tree(struct device *dev)
-{
- struct device *otherdev;
- if(likely(dev->platform_data != NULL))
- return dev->platform_data;
- /* OK, just traverse the bus to find it */
- for(otherdev = dev->parent; otherdev;
- otherdev = otherdev->parent) {
- if(otherdev->platform_data) {
- dev->platform_data = otherdev->platform_data;
- break;
- }
- }
- return dev->platform_data;
-}
-
-#define GET_IOC(dev) ({ \
- void *__pdata = parisc_walk_tree(dev); \
- __pdata ? HBA_DATA(__pdata)->iommu : NULL; \
-})
-
-#ifdef CONFIG_IOMMU_CCIO
-struct parisc_device;
-struct ioc;
-void * ccio_get_iommu(const struct parisc_device *dev);
-int ccio_request_resource(const struct parisc_device *dev,
- struct resource *res);
-int ccio_allocate_resource(const struct parisc_device *dev,
- struct resource *res, unsigned long size,
- unsigned long min, unsigned long max, unsigned long align);
-#else /* !CONFIG_IOMMU_CCIO */
-#define ccio_get_iommu(dev) NULL
-#define ccio_request_resource(dev, res) insert_resource(&iomem_resource, res)
-#define ccio_allocate_resource(dev, res, size, min, max, align) \
- allocate_resource(&iomem_resource, res, size, min, max, \
- align, NULL, NULL)
-#endif /* !CONFIG_IOMMU_CCIO */
-
-#ifdef CONFIG_IOMMU_SBA
-struct parisc_device;
-void * sba_get_iommu(struct parisc_device *dev);
-#endif
-
#endif
diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 1a1235a9d533..7f7039516e53 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -22,6 +22,7 @@ typedef struct {
unsigned int irq_stack_usage;
#ifdef CONFIG_SMP
unsigned int irq_resched_count;
+ unsigned int irq_call_count;
#endif
unsigned int irq_unaligned_count;
unsigned int irq_fpassist_count;
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 3328fd17c19d..f14465b84de4 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -56,7 +56,7 @@ struct pci_hba_data {
#define DINO_MAX_LMMIO_RESOURCES 3
unsigned long lmmio_space_offset; /* CPU view - PCI view */
- void * iommu; /* IOMMU this device is under */
+ struct ioc *iommu; /* IOMMU this device is under */
/* REVISIT - spinlock to protect resources? */
#define HBA_NAME_SIZE 16
@@ -66,8 +66,6 @@ struct pci_hba_data {
char gmmio_name[HBA_NAME_SIZE];
};
-#define HBA_DATA(d) ((struct pci_hba_data *) (d))
-
/*
** We support 2^16 I/O ports per HBA. These are set up in the form
** 0xbbxxxx, where bb is the bus number and xxxx is the I/O port
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 5b187d40d604..19bb2e46cd36 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -44,6 +44,7 @@ int pdc_model_sysmodel(char *name);
int pdc_model_cpuid(unsigned long *cpu_id);
int pdc_model_versions(unsigned long *versions, int id);
int pdc_model_capabilities(unsigned long *capabilities);
+int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num, char *serial_no);
int pdc_cache_info(struct pdc_cache_info *cache);
int pdc_spaceid_bits(unsigned long *space_bits);
#ifndef CONFIG_PA20
diff --git a/arch/parisc/include/asm/pdcpat.h b/arch/parisc/include/asm/pdcpat.h
index bce9ee1c1c99..24355ed1453a 100644
--- a/arch/parisc/include/asm/pdcpat.h
+++ b/arch/parisc/include/asm/pdcpat.h
@@ -67,6 +67,10 @@
#define PDC_PAT_CHASSIS_READ_LOG 1L /* Read Log Entry */
+/* PDC PAT COMPLEX */
+
+#define PDC_PAT_COMPLEX 66L
+
/* PDC PAT CPU -- CPU configuration within the protection domain */
#define PDC_PAT_CPU 67L
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 593eeb573138..15211723ebf5 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -60,6 +60,8 @@
#define PDC_MODEL_NVA_UNSUPPORTED (3 << 4)
#define PDC_MODEL_GET_BOOT__OP 8 /* returns boot test options */
#define PDC_MODEL_SET_BOOT__OP 9 /* set boot test options */
+#define PDC_MODEL_GET_PLATFORM_INFO 10 /* returns platform info */
+#define PDC_MODEL_GET_INSTALL_KERNEL 11 /* returns kernel for installation */
#define PA89_INSTRUCTION_SET 0x4 /* capabilities returned */
#define PA90_INSTRUCTION_SET 0x8
@@ -99,7 +101,7 @@
#define PDC_TOD 9 /* time-of-day clock (TOD) */
#define PDC_TOD_READ 0 /* read TOD */
#define PDC_TOD_WRITE 1 /* write TOD */
-
+#define PDC_TOD_CALIBRATE 2 /* calibrate timers */
#define PDC_STABLE 10 /* stable storage (sprockets) */
#define PDC_STABLE_READ 0
@@ -109,15 +111,22 @@
#define PDC_STABLE_INITIALIZE 4
#define PDC_NVOLATILE 11 /* often not implemented */
+#define PDC_NVOLATILE_READ 0
+#define PDC_NVOLATILE_WRITE 1
+#define PDC_NVOLATILE_RETURN_SIZE 2
+#define PDC_NVOLATILE_VERIFY_CONTENTS 3
+#define PDC_NVOLATILE_INITIALIZE 4
#define PDC_ADD_VALID 12 /* Memory validation PDC call */
#define PDC_ADD_VALID_VERIFY 0 /* Make PDC_ADD_VALID verify region */
+#define PDC_DEBUG 14 /* Obsolete */
+
#define PDC_INSTR 15 /* get instr to invoke PDCE_CHECK() */
#define PDC_PROC 16 /* (sprockets) */
-#define PDC_CONFIG 16 /* (sprockets) */
+#define PDC_CONFIG 17 /* (sprockets) */
#define PDC_CONFIG_DECONFIG 0
#define PDC_CONFIG_DRECONFIG 1
#define PDC_CONFIG_DRETURN_CONFIG 2
@@ -167,6 +176,15 @@
#define PDC_SOFT_POWER_INFO 0 /* return info about the soft power switch */
#define PDC_SOFT_POWER_ENABLE 1 /* enable/disable soft power switch */
+#define PDC_ALLOC 24 /* allocate static storage for PDC & IODC */
+
+#define PDC_CRASH_PREP 25 /* Prepare system for crash dump */
+#define PDC_CRASH_DUMP 0 /* Do platform specific preparations for dump */
+#define PDC_CRASH_LOG_CEC_ERROR 1 /* Dump hardware registers */
+
+#define PDC_SCSI_PARMS 26 /* Get and set SCSI parameters */
+#define PDC_SCSI_GET_PARMS 0 /* Get SCSI parameters for I/O device */
+#define PDC_SCSI_SET_PARMS 1 /* Set SCSI parameters for I/O device */
/* HVERSION dependent */
@@ -260,6 +278,10 @@
#define PDC_PCI_READ_MON_TYPE 15
#define PDC_PCI_WRITE_MON_TYPE 16
+#define PDC_RELOCATE 149 /* (sprockets) */
+#define PDC_RELOCATE_GET_RELOCINFO 0
+#define PDC_RELOCATE_CHECKSUM 1
+#define PDC_RELOCATE_RELOCATE 2
/* Get SCSI Interface Card info: SDTR, SCSI ID, mode (SE vs LVD) */
#define PDC_INITIATOR 163
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index e6f3b49f2fd7..7a17551ea31e 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -569,6 +569,30 @@ int pdc_model_capabilities(unsigned long *capabilities)
}
/**
+ * pdc_model_platform_info - Returns machine product and serial number.
+ * @orig_prod_num: Return buffer for original product number.
+ * @current_prod_num: Return buffer for current product number.
+ * @serial_no: Return buffer for serial number.
+ *
+ * Returns strings containing the original and current product numbers and the
+ * serial number of the system.
+ */
+int pdc_model_platform_info(char *orig_prod_num, char *current_prod_num,
+ char *serial_no)
+{
+ int retval;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdc_lock, flags);
+ retval = mem_pdc_call(PDC_MODEL, PDC_MODEL_GET_PLATFORM_INFO,
+ __pa(orig_prod_num), __pa(current_prod_num), __pa(serial_no));
+ convert_to_wide(pdc_result);
+ spin_unlock_irqrestore(&pdc_lock, flags);
+
+ return retval;
+}
+
+/**
* pdc_cache_info - Return cache and TLB information.
* @cache_info: The return buffer.
*
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 0ca254085a66..23040a67583e 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -117,7 +117,10 @@ int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest)
return -EINVAL;
/* whatever mask they set, we just allow one CPU */
- cpu_dest = cpumask_first_and(dest, cpu_online_mask);
+ cpu_dest = cpumask_next_and(d->irq & (num_online_cpus()-1),
+ dest, cpu_online_mask);
+ if (cpu_dest >= nr_cpu_ids)
+ cpu_dest = cpumask_first_and(dest, cpu_online_mask);
return cpu_dest;
}
@@ -175,10 +178,16 @@ int arch_show_interrupts(struct seq_file *p, int prec)
# endif
#endif
#ifdef CONFIG_SMP
- seq_printf(p, "%*s: ", prec, "RES");
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
- seq_puts(p, " Rescheduling interrupts\n");
+ if (num_online_cpus() > 1) {
+ seq_printf(p, "%*s: ", prec, "RES");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
+ seq_puts(p, " Rescheduling interrupts\n");
+ seq_printf(p, "%*s: ", prec, "CAL");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
+ seq_puts(p, " Function call interrupts\n");
+ }
#endif
seq_printf(p, "%*s: ", prec, "UAH");
for_each_online_cpu(j)
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index 82bd0d0927ce..7f4d042856b5 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -242,6 +242,7 @@ static int __init processor_probe(struct parisc_device *dev)
void __init collect_boot_cpu_data(void)
{
unsigned long cr16_seed;
+ char orig_prod_num[64], current_prod_num[64], serial_no[64];
memset(&boot_cpu_data, 0, sizeof(boot_cpu_data));
@@ -301,6 +302,14 @@ void __init collect_boot_cpu_data(void)
_parisc_requires_coherency = (boot_cpu_data.cpu_type == mako) ||
(boot_cpu_data.cpu_type == mako2);
#endif
+
+ if (pdc_model_platform_info(orig_prod_num, current_prod_num, serial_no) == PDC_OK) {
+ printk(KERN_INFO "product %s, original product %s, S/N: %s\n",
+ current_prod_num, orig_prod_num, serial_no);
+ add_device_randomness(orig_prod_num, strlen(orig_prod_num));
+ add_device_randomness(current_prod_num, strlen(current_prod_num));
+ add_device_randomness(serial_no, strlen(serial_no));
+ }
}
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index f2cf86ac279b..15dd9e21be7e 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -40,6 +40,7 @@
#include <linux/sched/clock.h>
#include <linux/start_kernel.h>
+#include <asm/cacheflush.h>
#include <asm/processor.h>
#include <asm/sections.h>
#include <asm/pdc.h>
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 5e26dbede5fc..d9e2d69c9e48 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -155,6 +155,7 @@ ipi_interrupt(int irq, void *dev_id)
case IPI_CALL_FUNC:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu);
+ inc_irq_stat(irq_call_count);
generic_smp_call_function_interrupt();
break;
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 472a818e8c17..7e1ccafadf57 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -218,7 +218,7 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
return;
}
- oops_in_progress = 1;
+ bust_spinlocks(1);
oops_enter();
@@ -396,7 +396,7 @@ void parisc_terminate(char *msg, struct pt_regs *regs, int code, unsigned long o
{
static DEFINE_SPINLOCK(terminate_lock);
- oops_in_progress = 1;
+ bust_spinlocks(1);
set_eiem(0);
local_irq_disable();
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 059187a3ded7..d0b166256f1a 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -79,36 +79,6 @@ static struct resource sysram_resources[MAX_PHYSMEM_RANGES] __read_mostly;
physmem_range_t pmem_ranges[MAX_PHYSMEM_RANGES] __read_mostly;
int npmem_ranges __read_mostly;
-/*
- * get_memblock() allocates pages via memblock.
- * We can't use memblock_find_in_range(0, KERNEL_INITIAL_SIZE) here since it
- * doesn't allocate from bottom to top which is needed because we only created
- * the initial mapping up to KERNEL_INITIAL_SIZE in the assembly bootup code.
- */
-static void * __init get_memblock(unsigned long size)
-{
- static phys_addr_t search_addr __initdata;
- phys_addr_t phys;
-
- if (!search_addr)
- search_addr = PAGE_ALIGN(__pa((unsigned long) &_end));
- search_addr = ALIGN(search_addr, size);
- while (!memblock_is_region_memory(search_addr, size) ||
- memblock_is_region_reserved(search_addr, size)) {
- search_addr += size;
- }
- phys = search_addr;
-
- if (phys)
- memblock_reserve(phys, size);
- else
- panic("get_memblock() failed.\n");
-
- memset(__va(phys), 0, size);
-
- return __va(phys);
-}
-
#ifdef CONFIG_64BIT
#define MAX_MEM (~0UL)
#else /* !CONFIG_64BIT */
@@ -321,6 +291,13 @@ static void __init setup_bootmem(void)
max_pfn = start_pfn + npages;
}
+ /*
+ * We can't use memblock top-down allocations because we only
+ * created the initial mapping up to KERNEL_INITIAL_SIZE in
+ * the assembly bootup code.
+ */
+ memblock_set_bottom_up(true);
+
/* IOMMU is always used to access "high mem" on those boxes
* that can support enough mem that a PCI device couldn't
* directly DMA to any physical addresses.
@@ -442,7 +419,10 @@ static void __init map_pages(unsigned long start_vaddr,
*/
if (!pmd) {
- pmd = (pmd_t *) get_memblock(PAGE_SIZE << PMD_ORDER);
+ pmd = memblock_alloc(PAGE_SIZE << PMD_ORDER,
+ PAGE_SIZE << PMD_ORDER);
+ if (!pmd)
+ panic("pmd allocation failed.\n");
pmd = (pmd_t *) __pa(pmd);
}
@@ -461,7 +441,10 @@ static void __init map_pages(unsigned long start_vaddr,
pg_table = (pte_t *)pmd_address(*pmd);
if (!pg_table) {
- pg_table = (pte_t *) get_memblock(PAGE_SIZE);
+ pg_table = memblock_alloc(PAGE_SIZE,
+ PAGE_SIZE);
+ if (!pg_table)
+ panic("page table allocation failed\n");
pg_table = (pte_t *) __pa(pg_table);
}
@@ -700,7 +683,10 @@ static void __init pagetable_init(void)
}
#endif
- empty_zero_page = get_memblock(PAGE_SIZE);
+ empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
+ if (!empty_zero_page)
+ panic("zero page allocation failed.\n");
+
}
static void __init gateway_init(void)