* their hooks, a bitfield is reserved for use by the platform near the
* top of MMIO addresses (not PIO, those have to cope the hard way).
*
- * This bit field is 12 bits and is at the top of the IO virtual
- * addresses PCI_IO_INDIRECT_TOKEN_MASK.
+ * The highest address in the kernel virtual space are:
*
- * The kernel virtual space is thus:
+ * d0003fffffffffff # with Hash MMU
+ * c00fffffffffffff # with Radix MMU
*
- * 0xD000000000000000 : vmalloc
- * 0xD000080000000000 : PCI PHB IO space
- * 0xD000080080000000 : ioremap
- * 0xD0000fffffffffff : end of ioremap region
- *
- * Since the top 4 bits are reserved as the region ID, we use thus
- * the next 12 bits and keep 4 bits available for the future if the
- * virtual address space is ever to be extended.
+ * The top 4 bits are reserved as the region ID on hash, leaving us 8 bits
+ * that can be used for the field.
*
* The direct IO mapping operations will then mask off those bits
* before doing the actual access, though that only happen when
*/
#ifdef CONFIG_PPC_INDIRECT_MMIO
-#define PCI_IO_IND_TOKEN_MASK 0x0fff000000000000ul
-#define PCI_IO_IND_TOKEN_SHIFT 48
+#define PCI_IO_IND_TOKEN_SHIFT 52
+#define PCI_IO_IND_TOKEN_MASK (0xfful << PCI_IO_IND_TOKEN_SHIFT)
#define PCI_FIX_ADDR(addr) \
((PCI_IO_ADDR)(((unsigned long)(addr)) & ~PCI_IO_IND_TOKEN_MASK))
#define PCI_GET_ADDR_TOKEN(addr) \
__PPC_RS(t) | __PPC_RA0(a) | __PPC_RB(b))
#define PPC_SLBFEE_DOT(t, b) stringify_in_c(.long PPC_INST_SLBFEE | \
__PPC_RT(t) | __PPC_RB(b))
+#define __PPC_SLBFEE_DOT(t, b) stringify_in_c(.long PPC_INST_SLBFEE | \
+ ___PPC_RT(t) | ___PPC_RB(b))
#define PPC_ICBT(c,a,b) stringify_in_c(.long PPC_INST_ICBT | \
__PPC_CT(c) | __PPC_RA0(a) | __PPC_RB(b))
/* PASemi instructions */
#ifdef CONFIG_PPC64
unsigned long ppr;
+ unsigned long __pad; /* Maintain 16 byte interrupt stack alignment */
#endif
};
#endif
{
unsigned long pa;
+ BUILD_BUG_ON(STACK_INT_FRAME_SIZE % 16);
+
pa = memblock_alloc_base_nid(THREAD_SIZE, THREAD_SIZE, limit,
early_cpu_to_node(cpu), MEMBLOCK_NONE);
if (!pa) {
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm
-#define TRACE_INCLUDE_PATH .
-#define TRACE_INCLUDE_FILE trace
/*
* Tracepoint for guest mode entry.
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace
+
#include <trace/define_trace.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm_booke
-#define TRACE_INCLUDE_PATH .
-#define TRACE_INCLUDE_FILE trace_booke
#define kvm_trace_symbol_exit \
{0, "CRITICAL"}, \
#endif
/* This part must be outside protection */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_booke
+
#include <trace/define_trace.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm_hv
-#define TRACE_INCLUDE_PATH .
-#define TRACE_INCLUDE_FILE trace_hv
#define kvm_trace_symbol_hcall \
{H_REMOVE, "H_REMOVE"}, \
#endif /* _TRACE_KVM_HV_H */
/* This part must be outside protection */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_hv
+
#include <trace/define_trace.h>
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm_pr
-#define TRACE_INCLUDE_PATH .
-#define TRACE_INCLUDE_FILE trace_pr
TRACE_EVENT(kvm_book3s_reenter,
TP_PROTO(int r, struct kvm_vcpu *vcpu),
#endif /* _TRACE_KVM_H */
/* This part must be outside protection */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_pr
+
#include <trace/define_trace.h>
switch (rc) {
case H_FUNCTION:
- printk(KERN_INFO
+ printk_once(KERN_INFO
"VPHN is not supported. Disabling polling...\n");
stop_topology_update();
break;
#include <asm/mmu.h>
#include <asm/mmu_context.h>
#include <asm/paca.h>
+#include <asm/ppc-opcode.h>
#include <asm/cputable.h>
#include <asm/cacheflush.h>
#include <asm/smp.h>
return __mk_vsid_data(get_kernel_vsid(ea, ssize), ssize, flags);
}
-static void assert_slb_exists(unsigned long ea)
+static void assert_slb_presence(bool present, unsigned long ea)
{
#ifdef CONFIG_DEBUG_VM
unsigned long tmp;
WARN_ON_ONCE(mfmsr() & MSR_EE);
- asm volatile("slbfee. %0, %1" : "=r"(tmp) : "r"(ea) : "cr0");
- WARN_ON(tmp == 0);
-#endif
-}
-
-static void assert_slb_notexists(unsigned long ea)
-{
-#ifdef CONFIG_DEBUG_VM
- unsigned long tmp;
+ if (!cpu_has_feature(CPU_FTR_ARCH_206))
+ return;
- WARN_ON_ONCE(mfmsr() & MSR_EE);
+ asm volatile(__PPC_SLBFEE_DOT(%0, %1) : "=r"(tmp) : "r"(ea) : "cr0");
- asm volatile("slbfee. %0, %1" : "=r"(tmp) : "r"(ea) : "cr0");
- WARN_ON(tmp != 0);
+ WARN_ON(present == (tmp == 0));
#endif
}
*/
slb_shadow_update(ea, ssize, flags, index);
- assert_slb_notexists(ea);
+ assert_slb_presence(false, ea);
asm volatile("slbmte %0,%1" :
: "r" (mk_vsid_data(ea, ssize, flags)),
"r" (mk_esid_data(ea, ssize, index))
"r" (be64_to_cpu(p->save_area[index].esid)));
}
- assert_slb_exists(local_paca->kstack);
+ assert_slb_presence(true, local_paca->kstack);
}
/*
:: "r" (be64_to_cpu(p->save_area[KSTACK_INDEX].vsid)),
"r" (be64_to_cpu(p->save_area[KSTACK_INDEX].esid))
: "memory");
- assert_slb_exists(get_paca()->kstack);
+ assert_slb_presence(true, get_paca()->kstack);
get_paca()->slb_cache_ptr = 0;
ea = (unsigned long)
get_paca()->slb_cache[i] << SID_SHIFT;
/*
- * Could assert_slb_exists here, but hypervisor
- * or machine check could have come in and
- * removed the entry at this point.
+ * Could assert_slb_presence(true) here, but
+ * hypervisor or machine check could have come
+ * in and removed the entry at this point.
*/
slbie_data = ea;
* User preloads should add isync afterwards in case the kernel
* accesses user memory before it returns to userspace with rfid.
*/
- assert_slb_notexists(ea);
+ assert_slb_presence(false, ea);
asm volatile("slbmte %0, %1" : : "r" (vsid_data), "r" (esid_data));
barrier();
return -EFAULT;
if (ea < H_VMALLOC_END)
- flags = get_paca()->vmalloc_sllp;
+ flags = local_paca->vmalloc_sllp;
else
flags = SLB_VSID_KERNEL | mmu_psize_defs[mmu_io_psize].sllp;
} else {
}
EXPORT_SYMBOL(pnv_pci_get_npu_dev);
-#define NPU_DMA_OP_UNSUPPORTED() \
- dev_err_once(dev, "%s operation unsupported for NVLink devices\n", \
- __func__)
-
-static void *dma_npu_alloc(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag,
- unsigned long attrs)
-{
- NPU_DMA_OP_UNSUPPORTED();
- return NULL;
-}
-
-static void dma_npu_free(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle,
- unsigned long attrs)
-{
- NPU_DMA_OP_UNSUPPORTED();
-}
-
-static dma_addr_t dma_npu_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction,
- unsigned long attrs)
-{
- NPU_DMA_OP_UNSUPPORTED();
- return 0;
-}
-
-static int dma_npu_map_sg(struct device *dev, struct scatterlist *sglist,
- int nelems, enum dma_data_direction direction,
- unsigned long attrs)
-{
- NPU_DMA_OP_UNSUPPORTED();
- return 0;
-}
-
-static int dma_npu_dma_supported(struct device *dev, u64 mask)
-{
- NPU_DMA_OP_UNSUPPORTED();
- return 0;
-}
-
-static u64 dma_npu_get_required_mask(struct device *dev)
-{
- NPU_DMA_OP_UNSUPPORTED();
- return 0;
-}
-
-static const struct dma_map_ops dma_npu_ops = {
- .map_page = dma_npu_map_page,
- .map_sg = dma_npu_map_sg,
- .alloc = dma_npu_alloc,
- .free = dma_npu_free,
- .dma_supported = dma_npu_dma_supported,
- .get_required_mask = dma_npu_get_required_mask,
-};
-
/*
* Returns the PE assoicated with the PCI device of the given
* NPU. Returns the linked pci device if pci_dev != NULL.
rc = pnv_npu_set_window(npe, 0, gpe->table_group.tables[0]);
/*
- * We don't initialise npu_pe->tce32_table as we always use
- * dma_npu_ops which are nops.
+ * NVLink devices use the same TCE table configuration as
+ * their parent device so drivers shouldn't be doing DMA
+ * operations directly on these devices.
*/
- set_dma_ops(&npe->pdev->dev, &dma_npu_ops);
+ set_dma_ops(&npe->pdev->dev, NULL);
}
/*
return 0;
}
-#define REG_POISON 0x5a5aUL
-#define POISONED_REG(n) ((REG_POISON << 48) | ((n) << 32) | (REG_POISON << 16) | (n))
+#define REG_POISON 0x5a5a
+#define POISONED_REG(n) ((((unsigned long)REG_POISON) << 48) | ((n) << 32) | \
+ (((unsigned long)REG_POISON) << 16) | (n))
static inline void poison_regs(void)
{
}
}
+#ifdef _CALL_AIXDESC
+struct opd {
+ unsigned long ip;
+ unsigned long toc;
+ unsigned long env;
+};
+static struct opd bad_opd = {
+ .ip = BAD_NIP,
+};
+#define BAD_FUNC (&bad_opd)
+#else
+#define BAD_FUNC BAD_NIP
+#endif
+
int test_wild_bctr(void)
{
int (*func_ptr)(void);
poison_regs();
- func_ptr = (int (*)(void))BAD_NIP;
+ func_ptr = (int (*)(void))BAD_FUNC;
func_ptr();
FAIL_IF(1); /* we didn't segv? */
projects / linux-2.6-block.git / commitdiff