diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/fault.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/fault.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/fault.c b/arch/powerpc/platforms/cell/spufs/fault.c index eff4d291ba8..8cb6260cc80 100644 --- a/arch/powerpc/platforms/cell/spufs/fault.c +++ b/arch/powerpc/platforms/cell/spufs/fault.c @@ -21,7 +21,6 @@ */ #include <linux/sched.h> #include <linux/mm.h> -#include <linux/module.h> #include <asm/spu.h> #include <asm/spu_csa.h> @@ -83,13 +82,18 @@ int spufs_handle_class0(struct spu_context *ctx) return 0; if (stat & CLASS0_DMA_ALIGNMENT_INTR) - spufs_handle_event(ctx, ctx->csa.dar, SPE_EVENT_DMA_ALIGNMENT); + spufs_handle_event(ctx, ctx->csa.class_0_dar, + SPE_EVENT_DMA_ALIGNMENT); if (stat & CLASS0_INVALID_DMA_COMMAND_INTR) - spufs_handle_event(ctx, ctx->csa.dar, SPE_EVENT_INVALID_DMA); + spufs_handle_event(ctx, ctx->csa.class_0_dar, + SPE_EVENT_INVALID_DMA); if (stat & CLASS0_SPU_ERROR_INTR) - spufs_handle_event(ctx, ctx->csa.dar, SPE_EVENT_SPE_ERROR); + spufs_handle_event(ctx, ctx->csa.class_0_dar, + SPE_EVENT_SPE_ERROR); + + ctx->csa.class_0_pending = 0; return -EIO; } @@ -108,7 +112,7 @@ int spufs_handle_class1(struct spu_context *ctx) u64 ea, dsisr, access; unsigned long flags; unsigned flt = 0; - int ret, ret2; + int ret; /* * dar and dsisr get passed from the registers @@ -119,15 +123,15 @@ int spufs_handle_class1(struct spu_context *ctx) * in time, we can still expect to get the same fault * the immediately after the context restore. */ - ea = ctx->csa.dar; - dsisr = ctx->csa.dsisr; + ea = ctx->csa.class_1_dar; + dsisr = ctx->csa.class_1_dsisr; if (!(dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED))) return 0; spuctx_switch_state(ctx, SPU_UTIL_IOWAIT); - pr_debug("ctx %p: ea %016lx, dsisr %016lx state %d\n", ctx, ea, + pr_debug("ctx %p: ea %016llx, dsisr %016llx state %d\n", ctx, ea, dsisr, ctx->state); ctx->stats.hash_flt++; @@ -148,20 +152,17 @@ int spufs_handle_class1(struct spu_context *ctx) ret = spu_handle_mm_fault(current->mm, ea, dsisr, &flt); /* - * If spu_acquire fails due to a pending signal we just want to return - * EINTR to userspace even if that means missing the dma restart or - * updating the page fault statistics. + * This is nasty: we need the state_mutex for all the bookkeeping even + * if the syscall was interrupted by a signal. ewww. */ - ret2 = spu_acquire(ctx); - if (ret2) - goto out; + mutex_lock(&ctx->state_mutex); /* * Clear dsisr under ctxt lock after handling the fault, so that * time slicing will not preempt the context while the page fault * handler is running. Context switch code removes mappings. */ - ctx->csa.dar = ctx->csa.dsisr = 0; + ctx->csa.class_1_dar = ctx->csa.class_1_dsisr = 0; /* * If we handled the fault successfully and are in runnable @@ -185,7 +186,6 @@ int spufs_handle_class1(struct spu_context *ctx) } else spufs_handle_event(ctx, ea, SPE_EVENT_SPE_DATA_STORAGE); - out: spuctx_switch_state(ctx, SPU_UTIL_SYSTEM); return ret; } |
