From: Jeremy Kerr Date: Tue, 1 Jul 2008 00:22:50 +0000 (+1000) Subject: powerpc/spufs: avoid magic numbers for mapping sizes X-Git-Tag: v2.6.27-rc1~1058^2~54 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87ff6090bfe416c71730654ab53cd4ecffdd675e;p=linux-2.6 powerpc/spufs: avoid magic numbers for mapping sizes Use a set of #defines for the size of context mappings, instead of magic numbers. Signed-off-by: Jeremy Kerr --- diff --git a/arch/powerpc/platforms/cell/spufs/context.c b/arch/powerpc/platforms/cell/spufs/context.c index 177735f793..6653ddbed0 100644 --- a/arch/powerpc/platforms/cell/spufs/context.c +++ b/arch/powerpc/platforms/cell/spufs/context.c @@ -130,17 +130,17 @@ void spu_unmap_mappings(struct spu_context *ctx) if (ctx->local_store) unmap_mapping_range(ctx->local_store, 0, LS_SIZE, 1); if (ctx->mfc) - unmap_mapping_range(ctx->mfc, 0, 0x1000, 1); + unmap_mapping_range(ctx->mfc, 0, SPUFS_MFC_MAP_SIZE, 1); if (ctx->cntl) - unmap_mapping_range(ctx->cntl, 0, 0x1000, 1); + unmap_mapping_range(ctx->cntl, 0, SPUFS_CNTL_MAP_SIZE, 1); if (ctx->signal1) - unmap_mapping_range(ctx->signal1, 0, PAGE_SIZE, 1); + unmap_mapping_range(ctx->signal1, 0, SPUFS_SIGNAL_MAP_SIZE, 1); if (ctx->signal2) - unmap_mapping_range(ctx->signal2, 0, PAGE_SIZE, 1); + unmap_mapping_range(ctx->signal2, 0, SPUFS_SIGNAL_MAP_SIZE, 1); if (ctx->mss) - unmap_mapping_range(ctx->mss, 0, 0x1000, 1); + unmap_mapping_range(ctx->mss, 0, SPUFS_MSS_MAP_SIZE, 1); if (ctx->psmap) - unmap_mapping_range(ctx->psmap, 0, 0x20000, 1); + unmap_mapping_range(ctx->psmap, 0, SPUFS_PS_MAP_SIZE, 1); mutex_unlock(&ctx->mapping_lock); } diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index fc595d0db2..d0a497d914 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -410,7 +410,7 @@ refault: static int spufs_cntl_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return spufs_ps_fault(vma, vmf, 0x4000, 0x1000); + return spufs_ps_fault(vma, vmf, 0x4000, SPUFS_CNTL_MAP_SIZE); } static struct vm_operations_struct spufs_cntl_mmap_vmops = { @@ -1102,13 +1102,13 @@ static ssize_t spufs_signal1_write(struct file *file, const char __user *buf, static int spufs_signal1_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { -#if PAGE_SIZE == 0x1000 - return spufs_ps_fault(vma, vmf, 0x14000, 0x1000); -#elif PAGE_SIZE == 0x10000 +#if SPUFS_SIGNAL_MAP_SIZE == 0x1000 + return spufs_ps_fault(vma, vmf, 0x14000, SPUFS_SIGNAL_MAP_SIZE); +#elif SPUFS_SIGNAL_MAP_SIZE == 0x10000 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole * signal 1 and 2 area */ - return spufs_ps_fault(vma, vmf, 0x10000, 0x10000); + return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE); #else #error unsupported page size #endif @@ -1239,13 +1239,13 @@ static ssize_t spufs_signal2_write(struct file *file, const char __user *buf, static int spufs_signal2_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { -#if PAGE_SIZE == 0x1000 - return spufs_ps_fault(vma, vmf, 0x1c000, 0x1000); -#elif PAGE_SIZE == 0x10000 +#if SPUFS_SIGNAL_MAP_SIZE == 0x1000 + return spufs_ps_fault(vma, vmf, 0x1c000, SPUFS_SIGNAL_MAP_SIZE); +#elif SPUFS_SIGNAL_MAP_SIZE == 0x10000 /* For 64k pages, both signal1 and signal2 can be used to mmap the whole * signal 1 and 2 area */ - return spufs_ps_fault(vma, vmf, 0x10000, 0x10000); + return spufs_ps_fault(vma, vmf, 0x10000, SPUFS_SIGNAL_MAP_SIZE); #else #error unsupported page size #endif @@ -1367,7 +1367,7 @@ DEFINE_SPUFS_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, static int spufs_mss_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return spufs_ps_fault(vma, vmf, 0x0000, 0x1000); + return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_MSS_MAP_SIZE); } static struct vm_operations_struct spufs_mss_mmap_vmops = { @@ -1429,7 +1429,7 @@ static const struct file_operations spufs_mss_fops = { static int spufs_psmap_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return spufs_ps_fault(vma, vmf, 0x0000, 0x20000); + return spufs_ps_fault(vma, vmf, 0x0000, SPUFS_PS_MAP_SIZE); } static struct vm_operations_struct spufs_psmap_mmap_vmops = { @@ -1489,7 +1489,7 @@ static const struct file_operations spufs_psmap_fops = { static int spufs_mfc_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return spufs_ps_fault(vma, vmf, 0x3000, 0x1000); + return spufs_ps_fault(vma, vmf, 0x3000, SPUFS_MFC_MAP_SIZE); } static struct vm_operations_struct spufs_mfc_mmap_vmops = { diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 454c277c14..433dece5c8 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -32,6 +32,13 @@ #include #include +#define SPUFS_PS_MAP_SIZE 0x20000 +#define SPUFS_MFC_MAP_SIZE 0x1000 +#define SPUFS_CNTL_MAP_SIZE 0x1000 +#define SPUFS_CNTL_MAP_SIZE 0x1000 +#define SPUFS_SIGNAL_MAP_SIZE PAGE_SIZE +#define SPUFS_MSS_MAP_SIZE 0x1000 + /* The magic number for our file system */ enum { SPUFS_MAGIC = 0x23c9b64e,