Merge branch 'for-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/git/arnd/cell-2.6

* 'for-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/git/arnd/cell-2.6: (37 commits)
  [CELL] spufs: rework list management and associated locking
  [CELL] oprofile: add support to OProfile for profiling CELL BE SPUs
  [CELL] oprofile: enable SPU switch notification to detect currently active SPU tasks
  [CELL] spu_base: locking cleanup
  [CELL] cell: indexing of SPUs based on firmware vicinity properties
  [CELL] spufs: integration of SPE affinity with the scheduller
  [CELL] cell: add placement computation for scheduling of affinity contexts
  [CELL] spufs: extension of spu_create to support affinity definition
  [CELL] cell: add hardcoded spu vicinity information for QS20
  [CELL] cell: add vicinity information on spus
  [CELL] cell: add per BE structure with info about its SPUs
  [CELL] spufs: use find_first_bit() instead of sched_find_first_bit()
  [CELL] spufs: remove unused file argument from spufs_run_spu()
  [CELL] spufs: change decrementer restore timing
  [CELL] spufs: dont halt decrementer at restore step 47
  [CELL] spufs: limit saving MFC_CNTL bits
  [CELL] spufs: fix read and write for decr_status file
  [CELL] spufs: fix decr_status meanings
  [CELL] spufs: remove needless context save/restore code
  [CELL] spufs: fix array size of channel index
  ...

2 files changed, 68 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index d3f2080d2eee..37658ea417fa 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -219,6 +219,72 @@ void crash_kexec_secondary(struct pt_regs *regs)
         cpus_in_sr = CPU_MASK_NONE;
 }
 #endif
+#ifdef CONFIG_SPU_BASE
+
+#include <asm/spu.h>
+#include <asm/spu_priv1.h>
+
+struct crash_spu_info {
+        struct spu *spu;
+        u32 saved_spu_runcntl_RW;
+        u32 saved_spu_status_R;
+        u32 saved_spu_npc_RW;
+        u64 saved_mfc_sr1_RW;
+        u64 saved_mfc_dar;
+        u64 saved_mfc_dsisr;
+};
+
+#define CRASH_NUM_SPUS  16      /* Enough for current hardware */
+static struct crash_spu_info crash_spu_info[CRASH_NUM_SPUS];
+
+static void crash_kexec_stop_spus(void)
+{
+        struct spu *spu;
+        int i;
+        u64 tmp;
+
+        for (i = 0; i < CRASH_NUM_SPUS; i++) {
+                if (!crash_spu_info[i].spu)
+                        continue;
+
+                spu = crash_spu_info[i].spu;
+
+                crash_spu_info[i].saved_spu_runcntl_RW =
+                        in_be32(&spu->problem->spu_runcntl_RW);
+                crash_spu_info[i].saved_spu_status_R =
+                        in_be32(&spu->problem->spu_status_R);
+                crash_spu_info[i].saved_spu_npc_RW =
+                        in_be32(&spu->problem->spu_npc_RW);
+
+                crash_spu_info[i].saved_mfc_dar    = spu_mfc_dar_get(spu);
+                crash_spu_info[i].saved_mfc_dsisr  = spu_mfc_dsisr_get(spu);
+                tmp = spu_mfc_sr1_get(spu);
+                crash_spu_info[i].saved_mfc_sr1_RW = tmp;
+
+                tmp &= ~MFC_STATE1_MASTER_RUN_CONTROL_MASK;
+                spu_mfc_sr1_set(spu, tmp);
+
+                __delay(200);
+        }
+}
+
+void crash_register_spus(struct list_head *list)
+{
+        struct spu *spu;
+
+        list_for_each_entry(spu, list, full_list) {
+                if (WARN_ON(spu->number >= CRASH_NUM_SPUS))
+                        continue;
+
+                crash_spu_info[spu->number].spu = spu;
+        }
+}
+
+#else
+static inline void crash_kexec_stop_spus(void)
+{
+}
+#endif /* CONFIG_SPU_BASE */
 
 void default_machine_crash_shutdown(struct pt_regs *regs)
 {
@@ -254,6 +320,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
         crash_save_cpu(regs, crashing_cpu);
         crash_kexec_prepare_cpus(crashing_cpu);
         cpu_set(crashing_cpu, cpus_in_crash);
+        crash_kexec_stop_spus();
         if (ppc_md.kexec_cpu_down)
                 ppc_md.kexec_cpu_down(1, 0);
 }
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index e5df167f7824..727a6699f2f4 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -122,6 +122,7 @@ extern struct timezone sys_tz;
 static long timezone_offset;
 
 unsigned long ppc_proc_freq;
+EXPORT_SYMBOL(ppc_proc_freq);
 unsigned long ppc_tb_freq;
 
 static u64 tb_last_jiffy __cacheline_aligned_in_smp;