Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

f479c01c · Linus Torvalds <[email protected]> · 2014-01-20 09:23:31 -08:00

Pull s390 updates from Martin Schwidefsky:
 "The bulk of the s390 updates for v3.14.

  New features are the perf support for the CPU-Measurement Sample
  Facility and the EP11 support for the crypto cards.  And the normal
  cleanups and bug-fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (44 commits)
  s390/cpum_sf: fix printk format warnings
  s390: Fix misspellings using 'codespell' tool
  s390/qdio: bridgeport support - CHSC part
  s390: delete new instances of __cpuinit usage
  s390/compat: fix PSW32_USER_BITS definition
  s390/zcrypt: add support for EP11 coprocessor cards
  s390/mm: optimize randomize_et_dyn for !PF_RANDOMIZE
  s390: use IS_ENABLED to check if a CONFIG is set to y or m
  s390/cio: use device_lock to synchronize calls to the ccwgroup driver
  s390/cio: use device_lock to synchronize calls to the ccw driver
  s390/cio: fix unlocked access of online member
  s390/cpum_sf: Add flag to process full SDBs only
  s390/cpum_sf: Add raw data sampling to support the diagnostic-sampling function
  s390/cpum_sf: Filter perf events based event->attr.exclude_* settings
  s390/cpum_sf: Detect KVM guest samples
  s390/cpum_sf: Add helper to read TOD from trailer entries
  s390/cpum_sf: Atomically reset trailer entry fields of sample-data-blocks
  s390/cpum_sf: Dynamically extend the sampling buffer if overflows occur
  s390/pci: reenable per default
  s390/pci/dma: fix accounting of allocated_pages
  ...

Commit: f479c01c8e81096e01eb20cec67dbaebae669aee
Parents: d8ec26d7 · f85168e4

Merge commit. Changes below are compared with the first parent: d8ec26d7.

Changes

54 files changed · +3383 −351

File	Status	Add	Del	Content
Documentation/kmsg/s390/zcrypt	added	+20	−0	View file
arch/s390/include/asm/compat.h	modified	+2	−1	View file
arch/s390/include/asm/cpu_mf.h	modified	+181	−0	View file
arch/s390/include/asm/css_chars.h	modified	+2	−0	View file
arch/s390/include/asm/pci.h	modified	+1	−0	View file
arch/s390/include/asm/perf_event.h	modified	+75	−5	View file
arch/s390/include/asm/qdio.h	modified	+34	−1	View file
arch/s390/include/asm/sclp.h	modified	+2	−2	View file
arch/s390/include/uapi/asm/zcrypt.h	modified	+65	−0	View file
arch/s390/kernel/Makefile	modified	+2	−1	View file
arch/s390/kernel/compat_signal.c	modified	+3	−2	View file
arch/s390/kernel/entry64.S	modified	+4	−4	View file
arch/s390/kernel/perf_cpum_cf.c	modified	+1	−0	View file
arch/s390/kernel/perf_cpum_cf_events.c	added	+322	−0	View file
arch/s390/kernel/perf_cpum_sf.c	added	+1641	−0	View file
arch/s390/kernel/perf_event.c	modified	+162	−12	View file
arch/s390/kernel/process.c	modified	+6	−8	View file
arch/s390/kernel/ptrace.c	modified	+12	−15	View file
arch/s390/kernel/s390_ksyms.c	modified	+1	−1	View file
arch/s390/kernel/setup.c	modified	+1	−1	View file
arch/s390/kernel/smp.c	modified	+12	−7	View file
arch/s390/kvm/priv.c	modified	+1	−1	View file
arch/s390/lib/uaccess_pt.c	modified	+2	−2	View file
arch/s390/mm/pgtable.c	modified	+2	−2	View file
arch/s390/oprofile/hwsampler.c	modified	+12	−66	View file
arch/s390/oprofile/hwsampler.h	modified	+1	−51	View file
arch/s390/oprofile/init.c	modified	+20	−3	View file
arch/s390/pci/pci.c	modified	+12	−4	View file
arch/s390/pci/pci_dma.c	modified	+8	−5	View file
arch/s390/pci/pci_event.c	modified	+21	−5	View file
drivers/s390/block/dasd.c	modified	+1	−1	View file
drivers/s390/char/sclp.h	modified	+0	−1	View file
drivers/s390/char/sclp_cmd.c	modified	+0	−2	View file
drivers/s390/char/sclp_early.c	modified	+63	−62	View file
drivers/s390/char/tty3270.c	modified	+2	−5	View file
drivers/s390/cio/blacklist.c	modified	+3	−3	View file
drivers/s390/cio/ccwgroup.c	modified	+6	−6	View file
drivers/s390/cio/chsc.c	modified	+37	−36	View file
drivers/s390/cio/chsc.h	modified	+50	−1	View file
drivers/s390/cio/css.c	modified	+19	−7	View file
drivers/s390/cio/css.h	modified	+1	−0	View file
drivers/s390/cio/device.c	modified	+15	−14	View file
drivers/s390/cio/qdio_main.c	modified	+91	−0	View file
drivers/s390/crypto/ap_bus.c	modified	+30	−1	View file
drivers/s390/crypto/ap_bus.h	modified	+3	−1	View file
drivers/s390/crypto/zcrypt_api.c	modified	+106	−3	View file
drivers/s390/crypto/zcrypt_api.h	modified	+2	−0	View file
drivers/s390/crypto/zcrypt_cex4.c	modified	+19	−1	View file
drivers/s390/crypto/zcrypt_error.h	modified	+10	−8	View file
drivers/s390/crypto/zcrypt_msgtype50.c	modified	+12	−0	View file
drivers/s390/crypto/zcrypt_msgtype6.c	modified	+260	−0	View file
drivers/s390/crypto/zcrypt_msgtype6.h	modified	+2	−0	View file
drivers/s390/crypto/zcrypt_pcica.c	modified	+11	−0	View file
drivers/s390/crypto/zcrypt_pcicc.c	modified	+12	−0	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/kmsg/s390/zcrypt

View file

diff --git a/Documentation/kmsg/s390/zcrypt b/Documentation/kmsg/s390/zcrypt
new file mode 100644
index 0000000..7fb2087
--- /dev/null
+++ b/Documentation/kmsg/s390/zcrypt
@@ -0,0 +1,20 @@
+/*?
+ * Text: "Cryptographic device %x failed and was set offline\n"
+ * Severity: Error
+ * Parameter:
+ *   @1: device index
+ * Description:
+ * A cryptographic device failed to process a cryptographic request.
+ * The cryptographic device driver could not correct the error and
+ * set the device offline. The application that issued the
+ * request received an indication that the request has failed.
+ * User action:
+ * Use the lszcrypt command to confirm that the cryptographic
+ * hardware is still configured to your LPAR or z/VM guest virtual
+ * machine. If the device is available to your Linux instance the
+ * command output contains a line that begins with 'card<device index>',
+ * where <device index> is the two-digit decimal number in the message text.
+ * After ensuring that the device is available, use the chzcrypt command to
+ * set it online again.
+ * If the error persists, contact your support organization.
+ */

arch/s390/include/asm/compat.h

View file

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 4bf9da0..5d7e8cf 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -38,7 +38,8 @@
 
 #define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
 			 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
-			 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | PSW32_ASC_HOME)
+			 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
+			 PSW32_ASC_PRIMARY)
 
 #define COMPAT_USER_HZ		100
 #define COMPAT_UTS_MACHINE	"s390\0\0\0\0"

arch/s390/include/asm/cpu_mf.h

View file

diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h
index c879fad..cb700d5 100644
--- a/arch/s390/include/asm/cpu_mf.h
+++ b/arch/s390/include/asm/cpu_mf.h
@@ -56,6 +56,96 @@ struct cpumf_ctr_info {
 	u32   reserved2[12];
 } __packed;
 
+/* QUERY SAMPLING INFORMATION block */
+struct hws_qsi_info_block {	    /* Bit(s) */
+	unsigned int b0_13:14;	    /* 0-13: zeros			 */
+	unsigned int as:1;	    /* 14: basic-sampling authorization	 */
+	unsigned int ad:1;	    /* 15: diag-sampling authorization	 */
+	unsigned int b16_21:6;	    /* 16-21: zeros			 */
+	unsigned int es:1;	    /* 22: basic-sampling enable control */
+	unsigned int ed:1;	    /* 23: diag-sampling enable control	 */
+	unsigned int b24_29:6;	    /* 24-29: zeros			 */
+	unsigned int cs:1;	    /* 30: basic-sampling activation control */
+	unsigned int cd:1;	    /* 31: diag-sampling activation control */
+	unsigned int bsdes:16;	    /* 4-5: size of basic sampling entry */
+	unsigned int dsdes:16;	    /* 6-7: size of diagnostic sampling entry */
+	unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
+	unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
+	unsigned long tear;	    /* 24-31: TEAR contents		 */
+	unsigned long dear;	    /* 32-39: DEAR contents		 */
+	unsigned int rsvrd0;	    /* 40-43: reserved			 */
+	unsigned int cpu_speed;     /* 44-47: CPU speed 		 */
+	unsigned long long rsvrd1;  /* 48-55: reserved			 */
+	unsigned long long rsvrd2;  /* 56-63: reserved			 */
+} __packed;
+
+/* SET SAMPLING CONTROLS request block */
+struct hws_lsctl_request_block {
+	unsigned int s:1;	    /* 0: maximum buffer indicator	 */
+	unsigned int h:1;	    /* 1: part. level reserved for VM use*/
+	unsigned long long b2_53:52;/* 2-53: zeros			 */
+	unsigned int es:1;	    /* 54: basic-sampling enable control */
+	unsigned int ed:1;	    /* 55: diag-sampling enable control	 */
+	unsigned int b56_61:6;	    /* 56-61: - zeros			 */
+	unsigned int cs:1;	    /* 62: basic-sampling activation control */
+	unsigned int cd:1;	    /* 63: diag-sampling activation control  */
+	unsigned long interval;     /* 8-15: sampling interval		 */
+	unsigned long tear;	    /* 16-23: TEAR contents		 */
+	unsigned long dear;	    /* 24-31: DEAR contents		 */
+	/* 32-63:							 */
+	unsigned long rsvrd1;	    /* reserved 			 */
+	unsigned long rsvrd2;	    /* reserved 			 */
+	unsigned long rsvrd3;	    /* reserved 			 */
+	unsigned long rsvrd4;	    /* reserved 			 */
+} __packed;
+
+struct hws_basic_entry {
+	unsigned int def:16;	    /* 0-15  Data Entry Format		 */
+	unsigned int R:4;	    /* 16-19 reserved			 */
+	unsigned int U:4;	    /* 20-23 Number of unique instruct.  */
+	unsigned int z:2;	    /* zeros				 */
+	unsigned int T:1;	    /* 26 PSW DAT mode			 */
+	unsigned int W:1;	    /* 27 PSW wait state		 */
+	unsigned int P:1;	    /* 28 PSW Problem state		 */
+	unsigned int AS:2;	    /* 29-30 PSW address-space control	 */
+	unsigned int I:1;	    /* 31 entry valid or invalid	 */
+	unsigned int:16;
+	unsigned int prim_asn:16;   /* primary ASN			 */
+	unsigned long long ia;	    /* Instruction Address		 */
+	unsigned long long gpp;     /* Guest Program Parameter		 */
+	unsigned long long hpp;     /* Host Program Parameter		 */
+} __packed;
+
+struct hws_diag_entry {
+	unsigned int def:16;	    /* 0-15  Data Entry Format		 */
+	unsigned int R:14;	    /* 16-19 and 20-30 reserved		 */
+	unsigned int I:1;	    /* 31 entry valid or invalid	 */
+	u8	     data[];	    /* Machine-dependent sample data	 */
+} __packed;
+
+struct hws_combined_entry {
+	struct hws_basic_entry	basic;	/* Basic-sampling data entry */
+	struct hws_diag_entry	diag;	/* Diagnostic-sampling data entry */
+} __packed;
+
+struct hws_trailer_entry {
+	union {
+		struct {
+			unsigned int f:1;	/* 0 - Block Full Indicator   */
+			unsigned int a:1;	/* 1 - Alert request control  */
+			unsigned int t:1;	/* 2 - Timestamp format	      */
+			unsigned long long:61;	/* 3 - 63: Reserved	      */
+		};
+		unsigned long long flags;	/* 0 - 63: All indicators     */
+	};
+	unsigned long long overflow;	 /* 64 - sample Overflow count	      */
+	unsigned char timestamp[16];	 /* 16 - 31 timestamp		      */
+	unsigned long long reserved1;	 /* 32 -Reserved		      */
+	unsigned long long reserved2;	 /*				      */
+	unsigned long long progusage1;	 /* 48 - reserved for programming use */
+	unsigned long long progusage2;	 /*				      */
+} __packed;
+
 /* Query counter information */
 static inline int qctri(struct cpumf_ctr_info *info)
 {
@@ -99,4 +189,95 @@ static inline int ecctr(u64 ctr, u64 *val)
 	return cc;
 }
 
+/* Query sampling information */
+static inline int qsi(struct hws_qsi_info_block *info)
+{
+	int cc;
+	cc = 1;
+
+	asm volatile(
+		"0:	.insn	s,0xb2860000,0(%1)\n"
+		"1:	lhi	%0,0\n"
+		"2:\n"
+		EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
+		: "=d" (cc), "+a" (info)
+		: "m" (*info)
+		: "cc", "memory");
+
+	return cc ? -EINVAL : 0;
+}
+
+/* Load sampling controls */
+static inline int lsctl(struct hws_lsctl_request_block *req)
+{
+	int cc;
+
+	cc = 1;
+	asm volatile(
+		"0:	.insn	s,0xb2870000,0(%1)\n"
+		"1:	ipm	%0\n"
+		"	srl	%0,28\n"
+		"2:\n"
+		EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
+		: "+d" (cc), "+a" (req)
+		: "m" (*req)
+		: "cc", "memory");
+
+	return cc ? -EINVAL : 0;
+}
+
+/* Sampling control helper functions */
+
+#include <linux/time.h>
+
+static inline unsigned long freq_to_sample_rate(struct hws_qsi_info_block *qsi,
+						unsigned long freq)
+{
+	return (USEC_PER_SEC / freq) * qsi->cpu_speed;
+}
+
+static inline unsigned long sample_rate_to_freq(struct hws_qsi_info_block *qsi,
+						unsigned long rate)
+{
+	return USEC_PER_SEC * qsi->cpu_speed / rate;
+}
+
+#define SDB_TE_ALERT_REQ_MASK	0x4000000000000000UL
+#define SDB_TE_BUFFER_FULL_MASK 0x8000000000000000UL
+
+/* Return TOD timestamp contained in an trailer entry */
+static inline unsigned long long trailer_timestamp(struct hws_trailer_entry *te)
+{
+	/* TOD in STCKE format */
+	if (te->t)
+		return *((unsigned long long *) &te->timestamp[1]);
+
+	/* TOD in STCK format */
+	return *((unsigned long long *) &te->timestamp[0]);
+}
+
+/* Return pointer to trailer entry of an sample data block */
+static inline unsigned long *trailer_entry_ptr(unsigned long v)
+{
+	void *ret;
+
+	ret = (void *) v;
+	ret += PAGE_SIZE;
+	ret -= sizeof(struct hws_trailer_entry);
+
+	return (unsigned long *) ret;
+}
+
+/* Return if the entry in the sample data block table (sdbt)
+ * is a link to the next sdbt */
+static inline int is_link_entry(unsigned long *s)
+{
+	return *s & 0x1ul ? 1 : 0;
+}
+
+/* Return pointer to the linked sdbt */
+static inline unsigned long *get_next_sdbt(unsigned long *s)
+{
+	return (unsigned long *) (*s & ~0x1ul);
+}
 #endif /* _ASM_S390_CPU_MF_H */

arch/s390/include/asm/css_chars.h

View file

diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h
index 7e1c917..09d1dd4 100644
--- a/arch/s390/include/asm/css_chars.h
+++ b/arch/s390/include/asm/css_chars.h
@@ -29,6 +29,8 @@ struct css_general_char {
 	u32 fcx : 1;	 /* bit 88 */
 	u32 : 19;
 	u32 alt_ssi : 1; /* bit 108 */
+	u32:1;
+	u32 narf:1;	 /* bit 110 */
 } __packed;
 
 extern struct css_general_char css_general_characteristics;

arch/s390/include/asm/pci.h

View file

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index c129ab2..2583466 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -144,6 +144,7 @@ int clp_disable_fh(struct zpci_dev *);
 void zpci_event_error(void *);
 void zpci_event_availability(void *);
 void zpci_rescan(void);
+bool zpci_is_enabled(void);
 #else /* CONFIG_PCI */
 static inline void zpci_event_error(void *e) {}
 static inline void zpci_event_availability(void *e) {}

arch/s390/include/asm/perf_event.h

View file

diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index 1141fb3..159a8ec 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -1,21 +1,40 @@
 /*
  * Performance event support - s390 specific definitions.
  *
- * Copyright IBM Corp. 2009, 2012
+ * Copyright IBM Corp. 2009, 2013
  * Author(s): Martin Schwidefsky <[email protected]>
  *	      Hendrik Brueckner <[email protected]>
  */
 
-#include <asm/cpu_mf.h>
+#ifndef _ASM_S390_PERF_EVENT_H
+#define _ASM_S390_PERF_EVENT_H
 
-/* CPU-measurement counter facility */
-#define PERF_CPUM_CF_MAX_CTR		256
+#ifdef CONFIG_64BIT
+
+#include <linux/perf_event.h>
+#include <linux/device.h>
+#include <asm/cpu_mf.h>
 
 /* Per-CPU flags for PMU states */
 #define PMU_F_RESERVED			0x1000
 #define PMU_F_ENABLED			0x2000
+#define PMU_F_IN_USE			0x4000
+#define PMU_F_ERR_IBE			0x0100
+#define PMU_F_ERR_LSDA			0x0200
+#define PMU_F_ERR_MASK			(PMU_F_ERR_IBE|PMU_F_ERR_LSDA)
+
+/* Perf defintions for PMU event attributes in sysfs */
+extern __init const struct attribute_group **cpumf_cf_event_group(void);
+extern ssize_t cpumf_events_sysfs_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *page);
+#define EVENT_VAR(_cat, _name)		event_attr_##_cat##_##_name
+#define EVENT_PTR(_cat, _name)		(&EVENT_VAR(_cat, _name).attr.attr)
+
+#define CPUMF_EVENT_ATTR(cat, name, id)			\
+	PMU_EVENT_ATTR(name, EVENT_VAR(cat, name), id, cpumf_events_sysfs_show)
+#define CPUMF_EVENT_PTR(cat, name)	EVENT_PTR(cat, name)
 
-#ifdef CONFIG_64BIT
 
 /* Perf callbacks */
 struct pt_regs;
@@ -23,4 +42,55 @@ extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
 extern unsigned long perf_misc_flags(struct pt_regs *regs);
 #define perf_misc_flags(regs) perf_misc_flags(regs)
 
+/* Perf pt_regs extension for sample-data-entry indicators */
+struct perf_sf_sde_regs {
+	unsigned char in_guest:1;	  /* guest sample */
+	unsigned long reserved:63;	  /* reserved */
+};
+
+/* Perf PMU definitions for the counter facility */
+#define PERF_CPUM_CF_MAX_CTR		256
+
+/* Perf PMU definitions for the sampling facility */
+#define PERF_CPUM_SF_MAX_CTR		2
+#define PERF_EVENT_CPUM_SF		0xB0000UL /* Event: Basic-sampling */
+#define PERF_EVENT_CPUM_SF_DIAG		0xBD000UL /* Event: Combined-sampling */
+#define PERF_CPUM_SF_BASIC_MODE		0x0001	  /* Basic-sampling flag */
+#define PERF_CPUM_SF_DIAG_MODE		0x0002	  /* Diagnostic-sampling flag */
+#define PERF_CPUM_SF_MODE_MASK		(PERF_CPUM_SF_BASIC_MODE| \
+					 PERF_CPUM_SF_DIAG_MODE)
+#define PERF_CPUM_SF_FULL_BLOCKS	0x0004	  /* Process full SDBs only */
+
+#define REG_NONE		0
+#define REG_OVERFLOW		1
+#define OVERFLOW_REG(hwc)	((hwc)->extra_reg.config)
+#define SFB_ALLOC_REG(hwc)	((hwc)->extra_reg.alloc)
+#define RAWSAMPLE_REG(hwc)	((hwc)->config)
+#define TEAR_REG(hwc)		((hwc)->last_tag)
+#define SAMPL_RATE(hwc)		((hwc)->event_base)
+#define SAMPL_FLAGS(hwc)	((hwc)->config_base)
+#define SAMPL_DIAG_MODE(hwc)	(SAMPL_FLAGS(hwc) & PERF_CPUM_SF_DIAG_MODE)
+#define SDB_FULL_BLOCKS(hwc)	(SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FULL_BLOCKS)
+
+/* Structure for sampling data entries to be passed as perf raw sample data
+ * to user space.  Note that raw sample data must be aligned and, thus, might
+ * be padded with zeros.
+ */
+struct sf_raw_sample {
+#define SF_RAW_SAMPLE_BASIC	PERF_CPUM_SF_BASIC_MODE
+#define SF_RAW_SAMPLE_DIAG	PERF_CPUM_SF_DIAG_MODE
+	u64			format;
+	u32			 size;	  /* Size of sf_raw_sample */
+	u16			bsdes;	  /* Basic-sampling data entry size */
+	u16			dsdes;	  /* Diagnostic-sampling data entry size */
+	struct hws_basic_entry	basic;	  /* Basic-sampling data entry */
+	struct hws_diag_entry	 diag;	  /* Diagnostic-sampling data entry */
+	u8		    padding[];	  /* Padding to next multiple of 8 */
+} __packed;
+
+/* Perf hardware reserve and release functions */
+int perf_reserve_sampling(void);
+void perf_release_sampling(void);
+
 #endif /* CONFIG_64BIT */
+#endif /* _ASM_S390_PERF_EVENT_H */

arch/s390/include/asm/qdio.h

View file

diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index 57d0d7e..d786c63 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -336,7 +336,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
 #define QDIO_FLAG_CLEANUP_USING_HALT		0x02
 
 /**
- * struct qdio_initialize - qdio initalization data
+ * struct qdio_initialize - qdio initialization data
  * @cdev: associated ccw device
  * @q_format: queue format
  * @adapter_name: name for the adapter
@@ -378,6 +378,34 @@ struct qdio_initialize {
 	struct qdio_outbuf_state *output_sbal_state_array;
 };
 
+/**
+ * enum qdio_brinfo_entry_type - type of address entry for qdio_brinfo_desc()
+ * @l3_ipv6_addr: entry contains IPv6 address
+ * @l3_ipv4_addr: entry contains IPv4 address
+ * @l2_addr_lnid: entry contains MAC address and VLAN ID
+ */
+enum qdio_brinfo_entry_type {l3_ipv6_addr, l3_ipv4_addr, l2_addr_lnid};
+
+/**
+ * struct qdio_brinfo_entry_XXX - Address entry for qdio_brinfo_desc()
+ * @nit:  Network interface token
+ * @addr: Address of one of the three types
+ *
+ * The struct is passed to the callback function by qdio_brinfo_desc()
+ */
+struct qdio_brinfo_entry_l3_ipv6 {
+	u64 nit;
+	struct { unsigned char _s6_addr[16]; } addr;
+} __packed;
+struct qdio_brinfo_entry_l3_ipv4 {
+	u64 nit;
+	struct { uint32_t _s_addr; } addr;
+} __packed;
+struct qdio_brinfo_entry_l2 {
+	u64 nit;
+	struct { u8 mac[6]; u16 lnid; } addr_lnid;
+} __packed;
+
 #define QDIO_STATE_INACTIVE		0x00000002 /* after qdio_cleanup */
 #define QDIO_STATE_ESTABLISHED		0x00000004 /* after qdio_establish */
 #define QDIO_STATE_ACTIVE		0x00000008 /* after qdio_activate */
@@ -399,5 +427,10 @@ extern int qdio_get_next_buffers(struct ccw_device *, int, int *, int *);
 extern int qdio_shutdown(struct ccw_device *, int);
 extern int qdio_free(struct ccw_device *);
 extern int qdio_get_ssqd_desc(struct ccw_device *, struct qdio_ssqd_desc *);
+extern int qdio_pnso_brinfo(struct subchannel_id schid,
+		int cnc, u16 *response,
+		void (*cb)(void *priv, enum qdio_brinfo_entry_type type,
+				void *entry),
+		void *priv);
 
 #endif /* __QDIO_H__ */

arch/s390/include/asm/sclp.h

View file

diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 2f39095..220e171 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -52,8 +52,8 @@ int sclp_chp_configure(struct chp_id chpid);
 int sclp_chp_deconfigure(struct chp_id chpid);
 int sclp_chp_read_info(struct sclp_chp_info *info);
 void sclp_get_ipl_info(struct sclp_ipl_info *info);
-bool sclp_has_linemode(void);
-bool sclp_has_vt220(void);
+bool __init sclp_has_linemode(void);
+bool __init sclp_has_vt220(void);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
 int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode);

arch/s390/include/uapi/asm/zcrypt.h

View file

diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index e83fc11..f2b18ea 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -154,6 +154,67 @@ struct ica_xcRB {
 	unsigned short	priority_window;
 	unsigned int	status;
 } __attribute__((packed));
+
+/**
+ * struct ep11_cprb - EP11 connectivity programming request block
+ * @cprb_len:		CPRB header length [0x0020]
+ * @cprb_ver_id:	CPRB version id.   [0x04]
+ * @pad_000:		Alignment pad bytes
+ * @flags:		Admin cmd [0x80] or functional cmd [0x00]
+ * @func_id:		Function id / subtype [0x5434]
+ * @source_id:		Source id [originator id]
+ * @target_id:		Target id [usage/ctrl domain id]
+ * @ret_code:		Return code
+ * @reserved1:		Reserved
+ * @reserved2:		Reserved
+ * @payload_len:	Payload length
+ */
+struct ep11_cprb {
+	uint16_t	cprb_len;
+	unsigned char	cprb_ver_id;
+	unsigned char	pad_000[2];
+	unsigned char	flags;
+	unsigned char	func_id[2];
+	uint32_t	source_id;
+	uint32_t	target_id;
+	uint32_t	ret_code;
+	uint32_t	reserved1;
+	uint32_t	reserved2;
+	uint32_t	payload_len;
+} __attribute__((packed));
+
+/**
+ * struct ep11_target_dev - EP11 target device list
+ * @ap_id:	AP device id
+ * @dom_id:	Usage domain id
+ */
+struct ep11_target_dev {
+	uint16_t ap_id;
+	uint16_t dom_id;
+};
+
+/**
+ * struct ep11_urb - EP11 user request block
+ * @targets_num:	Number of target adapters
+ * @targets:		Addr to target adapter list
+ * @weight:		Level of request priority
+ * @req_no:		Request id/number
+ * @req_len:		Request length
+ * @req:		Addr to request block
+ * @resp_len:		Response length
+ * @resp:		Addr to response block
+ */
+struct ep11_urb {
+	uint16_t		targets_num;
+	uint64_t		targets;
+	uint64_t		weight;
+	uint64_t		req_no;
+	uint64_t		req_len;
+	uint64_t		req;
+	uint64_t		resp_len;
+	uint64_t		resp;
+} __attribute__((packed));
+
 #define AUTOSELECT ((unsigned int)0xFFFFFFFF)
 
 #define ZCRYPT_IOCTL_MAGIC 'z'
@@ -183,6 +244,9 @@ struct ica_xcRB {
  *   ZSECSENDCPRB
  *     Send an arbitrary CPRB to a crypto card.
  *
+ *   ZSENDEP11CPRB
+ *     Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card.
+ *
  *   Z90STAT_STATUS_MASK
  *     Return an 64 element array of unsigned chars for the status of
  *     all devices.
@@ -256,6 +320,7 @@ struct ica_xcRB {
 #define ICARSAMODEXPO	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
 #define ICARSACRT	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
 #define ZSECSENDCPRB	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
+#define ZSENDEP11CPRB	_IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0)
 
 /* New status calls */
 #define Z90STAT_TOTALCOUNT	_IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)

arch/s390/kernel/Makefile

View file

diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 2403303..1b3ac09 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -60,7 +60,8 @@ obj-$(CONFIG_FTRACE_SYSCALLS)  += ftrace.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 
 ifdef CONFIG_64BIT
-obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_cpum_cf.o
+obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_cpum_cf.o perf_cpum_sf.o \
+						perf_cpum_cf_events.o
 obj-y				+= runtime_instr.o cache.o
 endif
 

arch/s390/kernel/compat_signal.c

View file

diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 95e7ba0..8b84bc3 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -412,8 +412,9 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 		regs->gprs[14] = (__u64 __force) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
 	} else {
 		regs->gprs[14] = (__u64 __force) frame->retcode | PSW32_ADDR_AMODE;
-		err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
-				  (u16 __force __user *)(frame->retcode));
+		if (__put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
+			       (u16 __force __user *)(frame->retcode)))
+			goto give_sigsegv;
 	}
 
 	/* Set up backchain. */

arch/s390/kernel/entry64.S

View file

diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index e5b43c9..384e609 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -74,7 +74,7 @@ _TIF_TRACE    = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \
 	.endm
 
 	.macro LPP newpp
-#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+#if IS_ENABLED(CONFIG_KVM)
 	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_LPP
 	jz	.+8
 	.insn	s,0xb2800000,\newpp
@@ -82,7 +82,7 @@ _TIF_TRACE    = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \
 	.endm
 
 	.macro	HANDLE_SIE_INTERCEPT scratch,reason
-#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+#if IS_ENABLED(CONFIG_KVM)
 	tmhh	%r8,0x0001		# interrupting from user ?
 	jnz	.+62
 	lgr	\scratch,%r9
@@ -946,7 +946,7 @@ cleanup_idle_insn:
 	.quad	__critical_end - __critical_start
 
 
-#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+#if IS_ENABLED(CONFIG_KVM)
 /*
  * sie64a calling convention:
  * %r2 pointer to sie control block
@@ -975,7 +975,7 @@ sie_done:
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
 # some program checks are suppressing. C code (e.g. do_protection_exception)
 # will rewind the PSW by the ILC, which is 4 bytes in case of SIE. Other
-# instructions beween sie64a and sie_done should not cause program
+# instructions between sie64a and sie_done should not cause program
 # interrupts. So lets use a nop (47 00 00 00) as a landing pad.