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-rw-r--r--arch/s390/Kconfig30
-rw-r--r--arch/s390/crypto/aes_s390.c2
-rw-r--r--arch/s390/include/asm/ap.h28
-rw-r--r--arch/s390/include/asm/uaccess.h2
-rw-r--r--arch/s390/include/uapi/asm/zcrypt.h4
-rw-r--r--arch/s390/kernel/compat_wrapper.c2
-rw-r--r--arch/s390/kvm/Kconfig2
-rw-r--r--arch/s390/mm/dump_pagetables.c17
-rw-r--r--arch/s390/mm/fault.c24
-rw-r--r--arch/s390/mm/init.c4
-rw-r--r--arch/s390/mm/kasan_init.c33
-rw-r--r--arch/s390/net/bpf_jit_comp.c12
-rw-r--r--arch/s390/pci/pci.c4
-rw-r--r--arch/s390/pci/pci_clp.c2
-rw-r--r--arch/s390/pci/pci_dma.c20
15 files changed, 84 insertions, 102 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 5173366af8f3..ed554b09eb3f 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -73,7 +73,6 @@ config S390
select ARCH_HAS_KCOV
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SET_MEMORY
- select ARCH_HAS_SG_CHAIN
select ARCH_HAS_STRICT_KERNEL_RWX
select ARCH_HAS_STRICT_MODULE_RWX
select ARCH_HAS_UBSAN_SANITIZE_ALL
@@ -140,7 +139,6 @@ config S390
select HAVE_COPY_THREAD_TLS
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_CONTIGUOUS
- select DMA_DIRECT_OPS
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EFFICIENT_UNALIGNED_ACCESS
@@ -168,14 +166,21 @@ config S390
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NOP_MCOUNT
select HAVE_OPROFILE
+ select HAVE_PCI
select HAVE_PERF_EVENTS
select HAVE_REGS_AND_STACK_ACCESS_API
select HAVE_RSEQ
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_VIRT_CPU_ACCOUNTING
+ select IOMMU_HELPER if PCI
+ select IOMMU_SUPPORT if PCI
select MODULES_USE_ELF_RELA
+ select NEED_DMA_MAP_STATE if PCI
+ select NEED_SG_DMA_LENGTH if PCI
select OLD_SIGACTION
select OLD_SIGSUSPEND3
+ select PCI_DOMAINS if PCI
+ select PCI_MSI if PCI
select SPARSE_IRQ
select SYSCTL_EXCEPTION_TRACE
select THREAD_INFO_IN_TASK
@@ -520,7 +525,7 @@ config SCHED_TOPOLOGY
making when dealing with machines that have multi-threading,
multiple cores or multiple books.
-source kernel/Kconfig.hz
+source "kernel/Kconfig.hz"
config KEXEC
def_bool y
@@ -706,17 +711,6 @@ config QDIO
If unsure, say Y.
-menuconfig PCI
- bool "PCI support"
- select PCI_MSI
- select IOMMU_HELPER
- select IOMMU_SUPPORT
- select NEED_DMA_MAP_STATE
- select NEED_SG_DMA_LENGTH
-
- help
- Enable PCI support.
-
if PCI
config PCI_NR_FUNCTIONS
@@ -727,13 +721,8 @@ config PCI_NR_FUNCTIONS
This allows you to specify the maximum number of PCI functions which
this kernel will support.
-source "drivers/pci/Kconfig"
-
endif # PCI
-config PCI_DOMAINS
- def_bool PCI
-
config HAS_IOMEM
def_bool PCI
@@ -837,9 +826,6 @@ source "kernel/power/Kconfig"
endmenu
-config PCMCIA
- def_bool n
-
config CCW
def_bool y
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 812d9498d97b..dd456725189f 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -137,7 +137,7 @@ static int fallback_init_cip(struct crypto_tfm *tfm)
struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
sctx->fallback.cip = crypto_alloc_cipher(name, 0,
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+ CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(sctx->fallback.cip)) {
pr_err("Allocating AES fallback algorithm %s failed\n",
diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h
index 8c00fd509c45..1a6a7092d942 100644
--- a/arch/s390/include/asm/ap.h
+++ b/arch/s390/include/asm/ap.h
@@ -221,16 +221,22 @@ static inline struct ap_queue_status ap_aqic(ap_qid_t qid,
void *ind)
{
register unsigned long reg0 asm ("0") = qid | (3UL << 24);
- register struct ap_qirq_ctrl reg1_in asm ("1") = qirqctrl;
- register struct ap_queue_status reg1_out asm ("1");
+ register union {
+ unsigned long value;
+ struct ap_qirq_ctrl qirqctrl;
+ struct ap_queue_status status;
+ } reg1 asm ("1");
register void *reg2 asm ("2") = ind;
+ reg1.qirqctrl = qirqctrl;
+
asm volatile(
".long 0xb2af0000" /* PQAP(AQIC) */
- : "=d" (reg1_out)
- : "d" (reg0), "d" (reg1_in), "d" (reg2)
+ : "+d" (reg1)
+ : "d" (reg0), "d" (reg2)
: "cc");
- return reg1_out;
+
+ return reg1.status;
}
/*
@@ -264,17 +270,21 @@ static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit,
{
register unsigned long reg0 asm ("0") = qid | (5UL << 24)
| ((ifbit & 0x01) << 22);
- register unsigned long reg1_in asm ("1") = apinfo->val;
- register struct ap_queue_status reg1_out asm ("1");
+ register union {
+ unsigned long value;
+ struct ap_queue_status status;
+ } reg1 asm ("1");
register unsigned long reg2 asm ("2");
+ reg1.value = apinfo->val;
+
asm volatile(
".long 0xb2af0000" /* PQAP(QACT) */
- : "+d" (reg1_in), "=d" (reg1_out), "=d" (reg2)
+ : "+d" (reg1), "=d" (reg2)
: "d" (reg0)
: "cc");
apinfo->val = reg2;
- return reg1_out;
+ return reg1.status;
}
/**
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index ad6b91013a05..bd2545977ad3 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -48,7 +48,7 @@ static inline int __range_ok(unsigned long addr, unsigned long size)
__range_ok((unsigned long)(addr), (size)); \
})
-#define access_ok(type, addr, size) __access_ok(addr, size)
+#define access_ok(addr, size) __access_ok(addr, size)
unsigned long __must_check
raw_copy_from_user(void *to, const void __user *from, unsigned long n);
diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index 42c81a95e97b..494c34c50716 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -150,8 +150,8 @@ struct ica_xcRB {
* @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]
+ * @flags: Admin bit [0x80], Special bit [0x20]
+ * @func_id: Function id / subtype [0x5434] "T4"
* @source_id: Source id [originator id]
* @target_id: Target id [usage/ctrl domain id]
* @ret_code: Return code
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index 2ce28bf0c5ec..48c4ce668244 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -164,7 +164,7 @@ COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, fla
COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags);
COMPAT_SYSCALL_WRAP4(sched_getattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, size, unsigned int, flags);
COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, unsigned int, flags);
-COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char __user *, uargs)
+COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, void __user *, uargs)
COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags)
COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags)
COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size);
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index a3dbd459cce9..767453faacfc 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -57,6 +57,6 @@ config KVM_S390_UCONTROL
# OK, it's a little counter-intuitive to do this, but it puts it neatly under
# the virtualization menu.
-source drivers/vhost/Kconfig
+source "drivers/vhost/Kconfig"
endif # VIRTUALIZATION
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 363f6470d742..3b93ba0b5d8d 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -111,11 +111,12 @@ static void note_page(struct seq_file *m, struct pg_state *st,
}
#ifdef CONFIG_KASAN
-static void note_kasan_zero_page(struct seq_file *m, struct pg_state *st)
+static void note_kasan_early_shadow_page(struct seq_file *m,
+ struct pg_state *st)
{
unsigned int prot;
- prot = pte_val(*kasan_zero_pte) &
+ prot = pte_val(*kasan_early_shadow_pte) &
(_PAGE_PROTECT | _PAGE_INVALID | _PAGE_NOEXEC);
note_page(m, st, prot, 4);
}
@@ -154,8 +155,8 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st,
int i;
#ifdef CONFIG_KASAN
- if ((pud_val(*pud) & PAGE_MASK) == __pa(kasan_zero_pmd)) {
- note_kasan_zero_page(m, st);
+ if ((pud_val(*pud) & PAGE_MASK) == __pa(kasan_early_shadow_pmd)) {
+ note_kasan_early_shadow_page(m, st);
return;
}
#endif
@@ -185,8 +186,8 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st,
int i;
#ifdef CONFIG_KASAN
- if ((p4d_val(*p4d) & PAGE_MASK) == __pa(kasan_zero_pud)) {
- note_kasan_zero_page(m, st);
+ if ((p4d_val(*p4d) & PAGE_MASK) == __pa(kasan_early_shadow_pud)) {
+ note_kasan_early_shadow_page(m, st);
return;
}
#endif
@@ -215,8 +216,8 @@ static void walk_p4d_level(struct seq_file *m, struct pg_state *st,
int i;
#ifdef CONFIG_KASAN
- if ((pgd_val(*pgd) & PAGE_MASK) == __pa(kasan_zero_p4d)) {
- note_kasan_zero_page(m, st);
+ if ((pgd_val(*pgd) & PAGE_MASK) == __pa(kasan_early_shadow_p4d)) {
+ note_kasan_early_shadow_page(m, st);
return;
}
#endif
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 2b8f32f56e0c..11613362c4e7 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -81,30 +81,6 @@ static inline int notify_page_fault(struct pt_regs *regs)
return ret;
}
-
-/*
- * Unlock any spinlocks which will prevent us from getting the
- * message out.
- */
-void bust_spinlocks(int yes)
-{
- if (yes) {
- oops_in_progress = 1;
- } else {
- int loglevel_save = console_loglevel;
- console_unblank();
- oops_in_progress = 0;
- /*
- * OK, the message is on the console. Now we call printk()
- * without oops_in_progress set so that printk will give klogd
- * a poke. Hold onto your hats...
- */
- console_loglevel = 15;
- printk(" ");
- console_loglevel = loglevel_save;
- }
-}
-
/*
* Find out which address space caused the exception.
* Access register mode is impossible, ignore space == 3.
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 76d0708438e9..3e82f66d5c61 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -59,7 +59,7 @@ static void __init setup_zero_pages(void)
order = 7;
/* Limit number of empty zero pages for small memory sizes */
- while (order > 2 && (totalram_pages >> 10) < (1UL << order))
+ while (order > 2 && (totalram_pages() >> 10) < (1UL << order))
order--;
empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
@@ -242,7 +242,7 @@ int arch_add_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap,
}
#ifdef CONFIG_MEMORY_HOTREMOVE
-int arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
+int arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap)
{
/*
* There is no hardware or firmware interface which could trigger a
diff --git a/arch/s390/mm/kasan_init.c b/arch/s390/mm/kasan_init.c
index acb9645b762b..bac5c27d11fc 100644
--- a/arch/s390/mm/kasan_init.c
+++ b/arch/s390/mm/kasan_init.c
@@ -107,7 +107,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PGDIR_SIZE) &&
end - address >= PGDIR_SIZE) {
- pgd_populate(&init_mm, pg_dir, kasan_zero_p4d);
+ pgd_populate(&init_mm, pg_dir,
+ kasan_early_shadow_p4d);
address = (address + PGDIR_SIZE) & PGDIR_MASK;
continue;
}
@@ -120,7 +121,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, P4D_SIZE) &&
end - address >= P4D_SIZE) {
- p4d_populate(&init_mm, p4_dir, kasan_zero_pud);
+ p4d_populate(&init_mm, p4_dir,
+ kasan_early_shadow_pud);
address = (address + P4D_SIZE) & P4D_MASK;
continue;
}
@@ -133,7 +135,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PUD_SIZE) &&
end - address >= PUD_SIZE) {
- pud_populate(&init_mm, pu_dir, kasan_zero_pmd);
+ pud_populate(&init_mm, pu_dir,
+ kasan_early_shadow_pmd);
address = (address + PUD_SIZE) & PUD_MASK;
continue;
}
@@ -146,7 +149,8 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
if (mode == POPULATE_ZERO_SHADOW &&
IS_ALIGNED(address, PMD_SIZE) &&
end - address >= PMD_SIZE) {
- pmd_populate(&init_mm, pm_dir, kasan_zero_pte);
+ pmd_populate(&init_mm, pm_dir,
+ kasan_early_shadow_pte);
address = (address + PMD_SIZE) & PMD_MASK;
continue;
}
@@ -188,7 +192,7 @@ static void __init kasan_early_vmemmap_populate(unsigned long address,
pte_val(*pt_dir) = __pa(page) | pgt_prot;
break;
case POPULATE_ZERO_SHADOW:
- page = kasan_zero_page;
+ page = kasan_early_shadow_page;
pte_val(*pt_dir) = __pa(page) | pgt_prot_zero;
break;
}
@@ -256,14 +260,14 @@ void __init kasan_early_init(void)
unsigned long vmax;
unsigned long pgt_prot = pgprot_val(PAGE_KERNEL_RO);
pte_t pte_z;
- pmd_t pmd_z = __pmd(__pa(kasan_zero_pte) | _SEGMENT_ENTRY);
- pud_t pud_z = __pud(__pa(kasan_zero_pmd) | _REGION3_ENTRY);
- p4d_t p4d_z = __p4d(__pa(kasan_zero_pud) | _REGION2_ENTRY);
+ pmd_t pmd_z = __pmd(__pa(kasan_early_shadow_pte) | _SEGMENT_ENTRY);
+ pud_t pud_z = __pud(__pa(kasan_early_shadow_pmd) | _REGION3_ENTRY);
+ p4d_t p4d_z = __p4d(__pa(kasan_early_shadow_pud) | _REGION2_ENTRY);
kasan_early_detect_facilities();
if (!has_nx)
pgt_prot &= ~_PAGE_NOEXEC;
- pte_z = __pte(__pa(kasan_zero_page) | pgt_prot);
+ pte_z = __pte(__pa(kasan_early_shadow_page) | pgt_prot);
memsize = get_mem_detect_end();
if (!memsize)
@@ -292,10 +296,13 @@ void __init kasan_early_init(void)
}
/* init kasan zero shadow */
- crst_table_init((unsigned long *)kasan_zero_p4d, p4d_val(p4d_z));
- crst_table_init((unsigned long *)kasan_zero_pud, pud_val(pud_z));
- crst_table_init((unsigned long *)kasan_zero_pmd, pmd_val(pmd_z));
- memset64((u64 *)kasan_zero_pte, pte_val(pte_z), PTRS_PER_PTE);
+ crst_table_init((unsigned long *)kasan_early_shadow_p4d,
+ p4d_val(p4d_z));
+ crst_table_init((unsigned long *)kasan_early_shadow_pud,
+ pud_val(pud_z));
+ crst_table_init((unsigned long *)kasan_early_shadow_pmd,
+ pmd_val(pmd_z));
+ memset64((u64 *)kasan_early_shadow_pte, pte_val(pte_z), PTRS_PER_PTE);
shadow_alloc_size = memsize >> KASAN_SHADOW_SCALE_SHIFT;
pgalloc_low = round_up((unsigned long)_end, _SEGMENT_SIZE);
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index d7052cbe984f..3ff758eeb71d 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -821,10 +821,22 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
/*
* BPF_ARSH
*/
+ case BPF_ALU | BPF_ARSH | BPF_X: /* ((s32) dst) >>= src */
+ /* sra %dst,%dst,0(%src) */
+ EMIT4_DISP(0x8a000000, dst_reg, src_reg, 0);
+ EMIT_ZERO(dst_reg);
+ break;
case BPF_ALU64 | BPF_ARSH | BPF_X: /* ((s64) dst) >>= src */
/* srag %dst,%dst,0(%src) */
EMIT6_DISP_LH(0xeb000000, 0x000a, dst_reg, dst_reg, src_reg, 0);
break;
+ case BPF_ALU | BPF_ARSH | BPF_K: /* ((s32) dst >> imm */
+ if (imm == 0)
+ break;
+ /* sra %dst,imm(%r0) */
+ EMIT4_DISP(0x8a000000, dst_reg, REG_0, imm);
+ EMIT_ZERO(dst_reg);
+ break;
case BPF_ALU64 | BPF_ARSH | BPF_K: /* ((s64) dst) >>= imm */
if (imm == 0)
break;
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 9f6f392a4461..6df622fb406d 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -382,9 +382,7 @@ static void zpci_irq_handler(struct airq_struct *airq)
if (ai == -1UL)
break;
inc_irq_stat(IRQIO_MSI);
- airq_iv_lock(aibv, ai);
generic_handle_irq(airq_iv_get_data(aibv, ai));
- airq_iv_unlock(aibv, ai);
}
}
}
@@ -410,7 +408,7 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
zdev->aisb = aisb;
/* Create adapter interrupt vector */
- zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA | AIRQ_IV_BITLOCK);
+ zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA);
if (!zdev->aibv)
return -ENOMEM;
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 19b2d2a9b43d..eeb7450db18c 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -436,7 +436,7 @@ int clp_get_state(u32 fid, enum zpci_state *state)
struct clp_state_data sd = {fid, ZPCI_FN_STATE_RESERVED};
int rc;
- rrb = clp_alloc_block(GFP_KERNEL);
+ rrb = clp_alloc_block(GFP_ATOMIC);
if (!rrb)
return -ENOMEM;
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index d387a0fbdd7e..9e52d1527f71 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -15,8 +15,6 @@
#include <linux/pci.h>
#include <asm/pci_dma.h>
-#define S390_MAPPING_ERROR (~(dma_addr_t) 0x0)
-
static struct kmem_cache *dma_region_table_cache;
static struct kmem_cache *dma_page_table_cache;
static int s390_iommu_strict;
@@ -301,7 +299,7 @@ static dma_addr_t dma_alloc_address(struct device *dev, int size)
out_error:
spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags);
- return S390_MAPPING_ERROR;
+ return DMA_MAPPING_ERROR;
}
static void dma_free_address(struct device *dev, dma_addr_t dma_addr, int size)
@@ -349,7 +347,7 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
/* This rounds up number of pages based on size and offset */
nr_pages = iommu_num_pages(pa, size, PAGE_SIZE);
dma_addr = dma_alloc_address(dev, nr_pages);
- if (dma_addr == S390_MAPPING_ERROR) {
+ if (dma_addr == DMA_MAPPING_ERROR) {
ret = -ENOSPC;
goto out_err;
}
@@ -372,7 +370,7 @@ out_free:
out_err:
zpci_err("map error:\n");
zpci_err_dma(ret, pa);
- return S390_MAPPING_ERROR;
+ return DMA_MAPPING_ERROR;
}
static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
@@ -406,7 +404,7 @@ static void *s390_dma_alloc(struct device *dev, size_t size,
dma_addr_t map;
size = PAGE_ALIGN(size);
- page = alloc_pages(flag, get_order(size));
+ page = alloc_pages(flag | __GFP_ZERO, get_order(size));
if (!page)
return NULL;
@@ -449,7 +447,7 @@ static int __s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
int ret;
dma_addr_base = dma_alloc_address(dev, nr_pages);
- if (dma_addr_base == S390_MAPPING_ERROR)
+ if (dma_addr_base == DMA_MAPPING_ERROR)
return -ENOMEM;
dma_addr = dma_addr_base;
@@ -496,7 +494,7 @@ static int s390_dma_map_sg(struct device *dev, struct scatterlist *sg,
for (i = 1; i < nr_elements; i++) {
s = sg_next(s);
- s->dma_address = S390_MAPPING_ERROR;
+ s->dma_address = DMA_MAPPING_ERROR;
s->dma_length = 0;
if (s->offset || (size & ~PAGE_MASK) ||
@@ -546,11 +544,6 @@ static void s390_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
}
}
-static int s390_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return dma_addr == S390_MAPPING_ERROR;
-}
-
int zpci_dma_init_device(struct zpci_dev *zdev)
{
int rc;
@@ -675,7 +668,6 @@ const struct dma_map_ops s390_pci_dma_ops = {
.unmap_sg = s390_dma_unmap_sg,
.map_page = s390_dma_map_pages,
.unmap_page = s390_dma_unmap_pages,
- .mapping_error = s390_mapping_error,
/* dma_supported is unconditionally true without a callback */
};
EXPORT_SYMBOL_GPL(s390_pci_dma_ops);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-28 07:12:42 +0000