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Diffstat (limited to 'arch/powerpc/platforms/pseries/setup.c')
-rw-r--r--arch/powerpc/platforms/pseries/setup.c39
1 files changed, 7 insertions, 32 deletions
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8fa012a65a71..f5940cc71c37 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -38,6 +38,7 @@
#include <linux/of.h>
#include <linux/of_pci.h>
#include <linux/memblock.h>
+#include <linux/swiotlb.h>
#include <asm/mmu.h>
#include <asm/processor.h>
@@ -67,6 +68,7 @@
#include <asm/isa-bridge.h>
#include <asm/security_features.h>
#include <asm/asm-const.h>
+#include <asm/swiotlb.h>
#include "pseries.h"
#include "../../../../drivers/pci/pci.h"
@@ -273,46 +275,16 @@ struct kmem_cache *dtl_cache;
*/
static int alloc_dispatch_logs(void)
{
- int cpu, ret;
- struct paca_struct *pp;
- struct dtl_entry *dtl;
-
if (!firmware_has_feature(FW_FEATURE_SPLPAR))
return 0;
if (!dtl_cache)
return 0;
- for_each_possible_cpu(cpu) {
- pp = paca_ptrs[cpu];
- dtl = kmem_cache_alloc(dtl_cache, GFP_KERNEL);
- if (!dtl) {
- pr_warn("Failed to allocate dispatch trace log for cpu %d\n",
- cpu);
- pr_warn("Stolen time statistics will be unreliable\n");
- break;
- }
-
- pp->dtl_ridx = 0;
- pp->dispatch_log = dtl;
- pp->dispatch_log_end = dtl + N_DISPATCH_LOG;
- pp->dtl_curr = dtl;
- }
+ alloc_dtl_buffers(0);
/* Register the DTL for the current (boot) cpu */
- dtl = get_paca()->dispatch_log;
- get_paca()->dtl_ridx = 0;
- get_paca()->dtl_curr = dtl;
- get_paca()->lppaca_ptr->dtl_idx = 0;
-
- /* hypervisor reads buffer length from this field */
- dtl->enqueue_to_dispatch_time = cpu_to_be32(DISPATCH_LOG_BYTES);
- ret = register_dtl(hard_smp_processor_id(), __pa(dtl));
- if (ret)
- pr_err("WARNING: DTL registration of cpu %d (hw %d) failed "
- "with %d\n", smp_processor_id(),
- hard_smp_processor_id(), ret);
- get_paca()->lppaca_ptr->dtl_enable_mask = 2;
+ register_dtl_buffer(smp_processor_id());
return 0;
}
@@ -793,6 +765,9 @@ static void __init pSeries_setup_arch(void)
}
ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare;
+
+ if (swiotlb_force == SWIOTLB_FORCE)
+ ppc_swiotlb_enable = 1;
}
static void pseries_panic(char *str)