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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-22 22:11:30 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-22 22:11:30 -0700 |
commit | 45c091bb2d453ce4a8b06cf19872ec7a77fc4799 (patch) | |
tree | 06fb2e05518ebfba163f8424e028e7faf5672d66 /arch/powerpc/platforms/cell/spufs/file.c | |
parent | d588fcbe5a7ba8bba2cebf7799ab2d573717a806 (diff) | |
parent | 2191fe3e39159e3375f4b7ec1420df149f154101 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits)
[POWERPC] re-enable OProfile for iSeries, using timer interrupt
[POWERPC] support ibm,extended-*-frequency properties
[POWERPC] Extra sanity check in EEH code
[POWERPC] Dont look for class-code in pci children
[POWERPC] Fix mdelay badness on shared processor partitions
[POWERPC] disable floating point exceptions for init
[POWERPC] Unify ppc syscall tables
[POWERPC] mpic: add support for serial mode interrupts
[POWERPC] pseries: Print PCI slot location code on failure
[POWERPC] spufs: one more fix for 64k pages
[POWERPC] spufs: fail spu_create with invalid flags
[POWERPC] spufs: clear class2 interrupt status before wakeup
[POWERPC] spufs: fix Makefile for "make clean"
[POWERPC] spufs: remove stop_code from struct spu
[POWERPC] spufs: fix spu irq affinity setting
[POWERPC] spufs: further abstract priv1 register access
[POWERPC] spufs: split the Cell BE support into generic and platform dependant parts
[POWERPC] spufs: dont try to access SPE channel 1 count
[POWERPC] spufs: use kzalloc in create_spu
[POWERPC] spufs: fix initial state of wbox file
...
Manually resolved conflicts in:
drivers/net/phy/Makefile
include/asm-powerpc/spu.h
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/file.c')
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 366185e9266..80c02660e61 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -825,6 +825,55 @@ DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get, spufs_signal2_type_set, "%llu"); #ifdef CONFIG_SPUFS_MMAP +static struct page *spufs_mss_mmap_nopage(struct vm_area_struct *vma, + unsigned long address, int *type) +{ + return spufs_ps_nopage(vma, address, type, 0x0000); +} + +static struct vm_operations_struct spufs_mss_mmap_vmops = { + .nopage = spufs_mss_mmap_nopage, +}; + +/* + * mmap support for problem state MFC DMA area [0x0000 - 0x0fff]. + * Mapping this area requires that the application have CAP_SYS_RAWIO, + * as these registers require special care when read/writing. + */ +static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) +{ + if (!(vma->vm_flags & VM_SHARED)) + return -EINVAL; + + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + + vma->vm_flags |= VM_RESERVED; + vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) + | _PAGE_NO_CACHE); + + vma->vm_ops = &spufs_mss_mmap_vmops; + return 0; +} +#endif + +static int spufs_mss_open(struct inode *inode, struct file *file) +{ + struct spufs_inode_info *i = SPUFS_I(inode); + + file->private_data = i->i_ctx; + return nonseekable_open(inode, file); +} + +static struct file_operations spufs_mss_fops = { + .open = spufs_mss_open, +#ifdef CONFIG_SPUFS_MMAP + .mmap = spufs_mss_mmap, +#endif +}; + + +#ifdef CONFIG_SPUFS_MMAP static struct page *spufs_mfc_mmap_nopage(struct vm_area_struct *vma, unsigned long address, int *type) { @@ -1279,6 +1328,22 @@ static u64 spufs_srr0_get(void *data) DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set, "%llx\n") +static u64 spufs_id_get(void *data) +{ + struct spu_context *ctx = data; + u64 num; + + spu_acquire(ctx); + if (ctx->state == SPU_STATE_RUNNABLE) + num = ctx->spu->number; + else + num = (unsigned int)-1; + spu_release(ctx); + + return num; +} +DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, 0, "0x%llx\n") + struct tree_descr spufs_dir_contents[] = { { "mem", &spufs_mem_fops, 0666, }, { "regs", &spufs_regs_fops, 0666, }, @@ -1292,6 +1357,7 @@ struct tree_descr spufs_dir_contents[] = { { "signal2", &spufs_signal2_fops, 0666, }, { "signal1_type", &spufs_signal1_type, 0666, }, { "signal2_type", &spufs_signal2_type, 0666, }, + { "mss", &spufs_mss_fops, 0666, }, { "mfc", &spufs_mfc_fops, 0666, }, { "cntl", &spufs_cntl_fops, 0666, }, { "npc", &spufs_npc_ops, 0666, }, @@ -1301,5 +1367,6 @@ struct tree_descr spufs_dir_contents[] = { { "spu_tag_mask", &spufs_spu_tag_mask_ops, 0666, }, { "event_mask", &spufs_event_mask_ops, 0666, }, { "srr0", &spufs_srr0_ops, 0666, }, + { "phys-id", &spufs_id_ops, 0666, }, {}, }; |