#include <asm/io.h>
#include <asm/semaphore.h>
#include <asm/spu.h>
+#include <asm/spu_info.h>
#include <asm/uaccess.h>
#include "spufs.h"
+#define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000)
static int
spufs_mem_open(struct inode *inode, struct file *file)
return 0;
}
+static ssize_t
+__spufs_mem_read(struct spu_context *ctx, char __user *buffer,
+ size_t size, loff_t *pos)
+{
+ char *local_store = ctx->ops->get_ls(ctx);
+ return simple_read_from_buffer(buffer, size, pos, local_store,
+ LS_SIZE);
+}
+
static ssize_t
spufs_mem_read(struct file *file, char __user *buffer,
size_t size, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
- char *local_store;
int ret;
+ struct spu_context *ctx = file->private_data;
spu_acquire(ctx);
-
- local_store = ctx->ops->get_ls(ctx);
- ret = simple_read_from_buffer(buffer, size, pos, local_store, LS_SIZE);
-
+ ret = __spufs_mem_read(ctx, buffer, size, pos);
spu_release(ctx);
return ret;
}
return ret;
}
-#ifdef CONFIG_SPUFS_MMAP
static struct page *
spufs_mem_mmap_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
spu_acquire(ctx);
- if (ctx->state == SPU_STATE_SAVED)
+ if (ctx->state == SPU_STATE_SAVED) {
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
+ & ~_PAGE_NO_CACHE);
page = vmalloc_to_page(ctx->csa.lscsa->ls + offset);
- else
+ } else {
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
+ | _PAGE_NO_CACHE);
page = pfn_to_page((ctx->spu->local_store_phys + offset)
>> PAGE_SHIFT);
-
+ }
spu_release(ctx);
if (type)
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- /* FIXME: */
+ vma->vm_flags |= VM_IO;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
| _PAGE_NO_CACHE);
vma->vm_ops = &spufs_mem_mmap_vmops;
return 0;
}
-#endif
static struct file_operations spufs_mem_fops = {
.open = spufs_mem_open,
.read = spufs_mem_read,
.write = spufs_mem_write,
.llseek = generic_file_llseek,
-#ifdef CONFIG_SPUFS_MMAP
.mmap = spufs_mem_mmap,
-#endif
};
-#ifdef CONFIG_SPUFS_MMAP
static struct page *spufs_ps_nopage(struct vm_area_struct *vma,
unsigned long address,
- int *type, unsigned long ps_offs)
+ int *type, unsigned long ps_offs,
+ unsigned long ps_size)
{
struct page *page = NOPAGE_SIGBUS;
int fault_type = VM_FAULT_SIGBUS;
int ret;
offset += vma->vm_pgoff << PAGE_SHIFT;
- if (offset >= 0x4000)
+ if (offset >= ps_size)
goto out;
ret = spu_acquire_runnable(ctx);
return page;
}
+#if SPUFS_MMAP_4K
static struct page *spufs_cntl_mmap_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
{
- return spufs_ps_nopage(vma, address, type, 0x4000);
+ return spufs_ps_nopage(vma, address, type, 0x4000, 0x1000);
}
static struct vm_operations_struct spufs_cntl_mmap_vmops = {
/*
* mmap support for problem state control area [0x4000 - 0x4fff].
- * Mapping this area requires that the application have CAP_SYS_RAWIO,
- * as these registers require special care when read/writing.
*/
static int spufs_cntl_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_flags |= VM_IO;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
- | _PAGE_NO_CACHE);
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_cntl_mmap_vmops;
return 0;
}
-#endif
+#else /* SPUFS_MMAP_4K */
+#define spufs_cntl_mmap NULL
+#endif /* !SPUFS_MMAP_4K */
-static int spufs_cntl_open(struct inode *inode, struct file *file)
+static u64 spufs_cntl_get(void *data)
{
- struct spufs_inode_info *i = SPUFS_I(inode);
- struct spu_context *ctx = i->i_ctx;
+ struct spu_context *ctx = data;
+ u64 val;
- file->private_data = ctx;
- file->f_mapping = inode->i_mapping;
- ctx->cntl = inode->i_mapping;
- return 0;
+ spu_acquire(ctx);
+ val = ctx->ops->status_read(ctx);
+ spu_release(ctx);
+
+ return val;
}
-static ssize_t
-spufs_cntl_read(struct file *file, char __user *buffer,
- size_t size, loff_t *pos)
+static void spufs_cntl_set(void *data, u64 val)
{
- /* FIXME: read from spu status */
- return -EINVAL;
+ struct spu_context *ctx = data;
+
+ spu_acquire(ctx);
+ ctx->ops->runcntl_write(ctx, val);
+ spu_release(ctx);
}
-static ssize_t
-spufs_cntl_write(struct file *file, const char __user *buffer,
- size_t size, loff_t *pos)
+static int spufs_cntl_open(struct inode *inode, struct file *file)
{
- /* FIXME: write to runctl bit */
- return -EINVAL;
+ struct spufs_inode_info *i = SPUFS_I(inode);
+ struct spu_context *ctx = i->i_ctx;
+
+ file->private_data = ctx;
+ file->f_mapping = inode->i_mapping;
+ ctx->cntl = inode->i_mapping;
+ return simple_attr_open(inode, file, spufs_cntl_get,
+ spufs_cntl_set, "0x%08lx");
}
static struct file_operations spufs_cntl_fops = {
.open = spufs_cntl_open,
- .read = spufs_cntl_read,
- .write = spufs_cntl_write,
-#ifdef CONFIG_SPUFS_MMAP
+ .release = simple_attr_close,
+ .read = simple_attr_read,
+ .write = simple_attr_write,
.mmap = spufs_cntl_mmap,
-#endif
};
static int
return 0;
}
+static ssize_t
+__spufs_regs_read(struct spu_context *ctx, char __user *buffer,
+ size_t size, loff_t *pos)
+{
+ struct spu_lscsa *lscsa = ctx->csa.lscsa;
+ return simple_read_from_buffer(buffer, size, pos,
+ lscsa->gprs, sizeof lscsa->gprs);
+}
+
static ssize_t
spufs_regs_read(struct file *file, char __user *buffer,
size_t size, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
- struct spu_lscsa *lscsa = ctx->csa.lscsa;
int ret;
+ struct spu_context *ctx = file->private_data;
spu_acquire_saved(ctx);
-
- ret = simple_read_from_buffer(buffer, size, pos,
- lscsa->gprs, sizeof lscsa->gprs);
-
+ ret = __spufs_regs_read(ctx, buffer, size, pos);
spu_release(ctx);
return ret;
}
.llseek = generic_file_llseek,
};
+static ssize_t
+__spufs_fpcr_read(struct spu_context *ctx, char __user * buffer,
+ size_t size, loff_t * pos)
+{
+ struct spu_lscsa *lscsa = ctx->csa.lscsa;
+ return simple_read_from_buffer(buffer, size, pos,
+ &lscsa->fpcr, sizeof(lscsa->fpcr));
+}
+
static ssize_t
spufs_fpcr_read(struct file *file, char __user * buffer,
size_t size, loff_t * pos)
{
- struct spu_context *ctx = file->private_data;
- struct spu_lscsa *lscsa = ctx->csa.lscsa;
int ret;
+ struct spu_context *ctx = file->private_data;
spu_acquire_saved(ctx);
-
- ret = simple_read_from_buffer(buffer, size, pos,
- &lscsa->fpcr, sizeof(lscsa->fpcr));
-
+ ret = __spufs_fpcr_read(ctx, buffer, size, pos);
spu_release(ctx);
return ret;
}
return nonseekable_open(inode, file);
}
+/*
+ * Read as many bytes from the mailbox as possible, until
+ * one of the conditions becomes true:
+ *
+ * - no more data available in the mailbox
+ * - end of the user provided buffer
+ * - end of the mapped area
+ */
static ssize_t spufs_mbox_read(struct file *file, char __user *buf,
size_t len, loff_t *pos)
{
struct spu_context *ctx = file->private_data;
- u32 mbox_data;
- int ret;
+ u32 mbox_data, __user *udata;
+ ssize_t count;
if (len < 4)
return -EINVAL;
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ udata = (void __user *)buf;
+
spu_acquire(ctx);
- ret = ctx->ops->mbox_read(ctx, &mbox_data);
+ for (count = 0; (count + 4) <= len; count += 4, udata++) {
+ int ret;
+ ret = ctx->ops->mbox_read(ctx, &mbox_data);
+ if (ret == 0)
+ break;
+
+ /*
+ * at the end of the mapped area, we can fault
+ * but still need to return the data we have
+ * read successfully so far.
+ */
+ ret = __put_user(mbox_data, udata);
+ if (ret) {
+ if (!count)
+ count = -EFAULT;
+ break;
+ }
+ }
spu_release(ctx);
- if (!ret)
- return -EAGAIN;
+ if (!count)
+ count = -EAGAIN;
- if (copy_to_user(buf, &mbox_data, sizeof mbox_data))
- return -EFAULT;
-
- return 4;
+ return count;
}
static struct file_operations spufs_mbox_fops = {
kill_fasync(&ctx->ibox_fasync, SIGIO, POLLIN);
}
+/*
+ * Read as many bytes from the interrupt mailbox as possible, until
+ * one of the conditions becomes true:
+ *
+ * - no more data available in the mailbox
+ * - end of the user provided buffer
+ * - end of the mapped area
+ *
+ * If the file is opened without O_NONBLOCK, we wait here until
+ * any data is available, but return when we have been able to
+ * read something.
+ */
static ssize_t spufs_ibox_read(struct file *file, char __user *buf,
size_t len, loff_t *pos)
{
struct spu_context *ctx = file->private_data;
- u32 ibox_data;
- ssize_t ret;
+ u32 ibox_data, __user *udata;
+ ssize_t count;
if (len < 4)
return -EINVAL;
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ udata = (void __user *)buf;
+
spu_acquire(ctx);
- ret = 0;
+ /* wait only for the first element */
+ count = 0;
if (file->f_flags & O_NONBLOCK) {
if (!spu_ibox_read(ctx, &ibox_data))
- ret = -EAGAIN;
+ count = -EAGAIN;
} else {
- ret = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data));
+ count = spufs_wait(ctx->ibox_wq, spu_ibox_read(ctx, &ibox_data));
}
+ if (count)
+ goto out;
- spu_release(ctx);
+ /* if we can't write at all, return -EFAULT */
+ count = __put_user(ibox_data, udata);
+ if (count)
+ goto out;
- if (ret)
- return ret;
+ for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
+ int ret;
+ ret = ctx->ops->ibox_read(ctx, &ibox_data);
+ if (ret == 0)
+ break;
+ /*
+ * at the end of the mapped area, we can fault
+ * but still need to return the data we have
+ * read successfully so far.
+ */
+ ret = __put_user(ibox_data, udata);
+ if (ret)
+ break;
+ }
- ret = 4;
- if (copy_to_user(buf, &ibox_data, sizeof ibox_data))
- ret = -EFAULT;
+out:
+ spu_release(ctx);
- return ret;
+ return count;
}
static unsigned int spufs_ibox_poll(struct file *file, poll_table *wait)
kill_fasync(&ctx->wbox_fasync, SIGIO, POLLOUT);
}
+/*
+ * Write as many bytes to the interrupt mailbox as possible, until
+ * one of the conditions becomes true:
+ *
+ * - the mailbox is full
+ * - end of the user provided buffer
+ * - end of the mapped area
+ *
+ * If the file is opened without O_NONBLOCK, we wait here until
+ * space is availabyl, but return when we have been able to
+ * write something.
+ */
static ssize_t spufs_wbox_write(struct file *file, const char __user *buf,
size_t len, loff_t *pos)
{
struct spu_context *ctx = file->private_data;
- u32 wbox_data;
- int ret;
+ u32 wbox_data, __user *udata;
+ ssize_t count;
if (len < 4)
return -EINVAL;
- if (copy_from_user(&wbox_data, buf, sizeof wbox_data))
+ udata = (void __user *)buf;
+ if (!access_ok(VERIFY_READ, buf, len))
+ return -EFAULT;
+
+ if (__get_user(wbox_data, udata))
return -EFAULT;
spu_acquire(ctx);
- ret = 0;
+ /*
+ * make sure we can at least write one element, by waiting
+ * in case of !O_NONBLOCK
+ */
+ count = 0;
if (file->f_flags & O_NONBLOCK) {
if (!spu_wbox_write(ctx, wbox_data))
- ret = -EAGAIN;
+ count = -EAGAIN;
} else {
- ret = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data));
+ count = spufs_wait(ctx->wbox_wq, spu_wbox_write(ctx, wbox_data));
}
- spu_release(ctx);
+ if (count)
+ goto out;
+
+ /* write aѕ much as possible */
+ for (count = 4, udata++; (count + 4) <= len; count += 4, udata++) {
+ int ret;
+ ret = __get_user(wbox_data, udata);
+ if (ret)
+ break;
+
+ ret = spu_wbox_write(ctx, wbox_data);
+ if (ret == 0)
+ break;
+ }
- return ret ? ret : sizeof wbox_data;
+out:
+ spu_release(ctx);
+ return count;
}
static unsigned int spufs_wbox_poll(struct file *file, poll_table *wait)
return nonseekable_open(inode, file);
}
-static ssize_t spufs_signal1_read(struct file *file, char __user *buf,
+static ssize_t __spufs_signal1_read(struct spu_context *ctx, char __user *buf,
size_t len, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
+ int ret = 0;
u32 data;
if (len < 4)
return -EINVAL;
- spu_acquire(ctx);
- data = ctx->ops->signal1_read(ctx);
- spu_release(ctx);
+ if (ctx->csa.spu_chnlcnt_RW[3]) {
+ data = ctx->csa.spu_chnldata_RW[3];
+ ret = 4;
+ }
+
+ if (!ret)
+ goto out;
if (copy_to_user(buf, &data, 4))
return -EFAULT;
- return 4;
+out:
+ return ret;
+}
+
+static ssize_t spufs_signal1_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ int ret;
+ struct spu_context *ctx = file->private_data;
+
+ spu_acquire_saved(ctx);
+ ret = __spufs_signal1_read(ctx, buf, len, pos);
+ spu_release(ctx);
+
+ return ret;
}
static ssize_t spufs_signal1_write(struct file *file, const char __user *buf,
return 4;
}
-#ifdef CONFIG_SPUFS_MMAP
static struct page *spufs_signal1_mmap_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
{
- return spufs_ps_nopage(vma, address, type, 0x14000);
+#if PAGE_SIZE == 0x1000
+ return spufs_ps_nopage(vma, address, type, 0x14000, 0x1000);
+#elif PAGE_SIZE == 0x10000
+ /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
+ * signal 1 and 2 area
+ */
+ return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000);
+#else
+#error unsupported page size
+#endif
}
static struct vm_operations_struct spufs_signal1_mmap_vmops = {
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_IO;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
- | _PAGE_NO_CACHE);
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_signal1_mmap_vmops;
return 0;
}
-#endif
static struct file_operations spufs_signal1_fops = {
.open = spufs_signal1_open,
.read = spufs_signal1_read,
.write = spufs_signal1_write,
-#ifdef CONFIG_SPUFS_MMAP
.mmap = spufs_signal1_mmap,
-#endif
};
static int spufs_signal2_open(struct inode *inode, struct file *file)
return nonseekable_open(inode, file);
}
-static ssize_t spufs_signal2_read(struct file *file, char __user *buf,
+static ssize_t __spufs_signal2_read(struct spu_context *ctx, char __user *buf,
size_t len, loff_t *pos)
{
- struct spu_context *ctx;
+ int ret = 0;
u32 data;
- ctx = file->private_data;
-
if (len < 4)
return -EINVAL;
- spu_acquire(ctx);
- data = ctx->ops->signal2_read(ctx);
- spu_release(ctx);
+ if (ctx->csa.spu_chnlcnt_RW[4]) {
+ data = ctx->csa.spu_chnldata_RW[4];
+ ret = 4;
+ }
+
+ if (!ret)
+ goto out;
if (copy_to_user(buf, &data, 4))
return -EFAULT;
- return 4;
+out:
+ return ret;
+}
+
+static ssize_t spufs_signal2_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ struct spu_context *ctx = file->private_data;
+ int ret;
+
+ spu_acquire_saved(ctx);
+ ret = __spufs_signal2_read(ctx, buf, len, pos);
+ spu_release(ctx);
+
+ return ret;
}
static ssize_t spufs_signal2_write(struct file *file, const char __user *buf,
return 4;
}
-#ifdef CONFIG_SPUFS_MMAP
+#if SPUFS_MMAP_4K
static struct page *spufs_signal2_mmap_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
{
- return spufs_ps_nopage(vma, address, type, 0x1c000);
+#if PAGE_SIZE == 0x1000
+ return spufs_ps_nopage(vma, address, type, 0x1c000, 0x1000);
+#elif PAGE_SIZE == 0x10000
+ /* For 64k pages, both signal1 and signal2 can be used to mmap the whole
+ * signal 1 and 2 area
+ */
+ return spufs_ps_nopage(vma, address, type, 0x10000, 0x10000);
+#else
+#error unsupported page size
+#endif
}
static struct vm_operations_struct spufs_signal2_mmap_vmops = {
if (!(vma->vm_flags & VM_SHARED))
return -EINVAL;
- /* FIXME: */
- vma->vm_flags |= VM_RESERVED;
+ vma->vm_flags |= VM_IO;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
- | _PAGE_NO_CACHE);
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_signal2_mmap_vmops;
return 0;
}
-#endif
+#else /* SPUFS_MMAP_4K */
+#define spufs_signal2_mmap NULL
+#endif /* !SPUFS_MMAP_4K */
static struct file_operations spufs_signal2_fops = {
.open = spufs_signal2_open,
.read = spufs_signal2_read,
.write = spufs_signal2_write,
-#ifdef CONFIG_SPUFS_MMAP
.mmap = spufs_signal2_mmap,
-#endif
};
static void spufs_signal1_type_set(void *data, u64 val)
spu_release(ctx);
}
+static u64 __spufs_signal1_type_get(void *data)
+{
+ struct spu_context *ctx = data;
+ return ctx->ops->signal1_type_get(ctx);
+}
+
static u64 spufs_signal1_type_get(void *data)
{
struct spu_context *ctx = data;
u64 ret;
spu_acquire(ctx);
- ret = ctx->ops->signal1_type_get(ctx);
+ ret = __spufs_signal1_type_get(data);
spu_release(ctx);
return ret;
spu_release(ctx);
}
+static u64 __spufs_signal2_type_get(void *data)
+{
+ struct spu_context *ctx = data;
+ return ctx->ops->signal2_type_get(ctx);
+}
+
static u64 spufs_signal2_type_get(void *data)
{
struct spu_context *ctx = data;
u64 ret;
spu_acquire(ctx);
- ret = ctx->ops->signal2_type_get(ctx);
+ ret = __spufs_signal2_type_get(data);
spu_release(ctx);
return ret;
DEFINE_SIMPLE_ATTRIBUTE(spufs_signal2_type, spufs_signal2_type_get,
spufs_signal2_type_set, "%llu");
-#ifdef CONFIG_SPUFS_MMAP
+#if SPUFS_MMAP_4K
+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, 0x1000);
+}
+
+static struct vm_operations_struct spufs_mss_mmap_vmops = {
+ .nopage = spufs_mss_mmap_nopage,
+};
+
+/*
+ * mmap support for problem state MFC DMA area [0x0000 - 0x0fff].
+ */
+static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ if (!(vma->vm_flags & VM_SHARED))
+ return -EINVAL;
+
+ vma->vm_flags |= VM_IO;
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
+
+ vma->vm_ops = &spufs_mss_mmap_vmops;
+ return 0;
+}
+#else /* SPUFS_MMAP_4K */
+#define spufs_mss_mmap NULL
+#endif /* !SPUFS_MMAP_4K */
+
+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,
+ .mmap = spufs_mss_mmap,
+};
+
+static struct page *spufs_psmap_mmap_nopage(struct vm_area_struct *vma,
+ unsigned long address, int *type)
+{
+ return spufs_ps_nopage(vma, address, type, 0x0000, 0x20000);
+}
+
+static struct vm_operations_struct spufs_psmap_mmap_vmops = {
+ .nopage = spufs_psmap_mmap_nopage,
+};
+
+/*
+ * mmap support for full problem state area [0x00000 - 0x1ffff].
+ */
+static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma)
+{
+ if (!(vma->vm_flags & VM_SHARED))
+ return -EINVAL;
+
+ vma->vm_flags |= VM_IO;
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
+
+ vma->vm_ops = &spufs_psmap_mmap_vmops;
+ return 0;
+}
+
+static int spufs_psmap_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_psmap_fops = {
+ .open = spufs_psmap_open,
+ .mmap = spufs_psmap_mmap,
+};
+
+
+#if SPUFS_MMAP_4K
static struct page *spufs_mfc_mmap_nopage(struct vm_area_struct *vma,
unsigned long address, int *type)
{
- return spufs_ps_nopage(vma, address, type, 0x3000);
+ return spufs_ps_nopage(vma, address, type, 0x3000, 0x1000);
}
static struct vm_operations_struct spufs_mfc_mmap_vmops = {
/*
* 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_mfc_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_flags |= VM_IO;
vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot)
- | _PAGE_NO_CACHE);
+ | _PAGE_NO_CACHE | _PAGE_GUARDED);
vma->vm_ops = &spufs_mfc_mmap_vmops;
return 0;
}
-#endif
+#else /* SPUFS_MMAP_4K */
+#define spufs_mfc_mmap NULL
+#endif /* !SPUFS_MMAP_4K */
static int spufs_mfc_open(struct inode *inode, struct file *file)
{
goto out;
ctx->tagwait |= 1 << cmd.tag;
+ ret = size;
out:
return ret;
return mask;
}
-static int spufs_mfc_flush(struct file *file)
+static int spufs_mfc_flush(struct file *file, fl_owner_t id)
{
struct spu_context *ctx = file->private_data;
int ret;
static int spufs_mfc_fsync(struct file *file, struct dentry *dentry,
int datasync)
{
- return spufs_mfc_flush(file);
+ return spufs_mfc_flush(file, NULL);
}
static int spufs_mfc_fasync(int fd, struct file *file, int on)
.flush = spufs_mfc_flush,
.fsync = spufs_mfc_fsync,
.fasync = spufs_mfc_fasync,
-#ifdef CONFIG_SPUFS_MMAP
.mmap = spufs_mfc_mmap,
-#endif
};
static void spufs_npc_set(void *data, u64 val)
spu_release(ctx);
return ret;
}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set, "%llx\n")
+DEFINE_SIMPLE_ATTRIBUTE(spufs_npc_ops, spufs_npc_get, spufs_npc_set,
+ "0x%llx\n")
static void spufs_decr_set(void *data, u64 val)
{
spu_release(ctx);
}
-static u64 spufs_decr_get(void *data)
+static u64 __spufs_decr_get(void *data)
{
struct spu_context *ctx = data;
struct spu_lscsa *lscsa = ctx->csa.lscsa;
+ return lscsa->decr.slot[0];
+}
+
+static u64 spufs_decr_get(void *data)
+{
+ struct spu_context *ctx = data;
u64 ret;
spu_acquire_saved(ctx);
- ret = lscsa->decr.slot[0];
+ ret = __spufs_decr_get(data);
spu_release(ctx);
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_ops, spufs_decr_get, spufs_decr_set,
- "%llx\n")
+ "0x%llx\n")
static void spufs_decr_status_set(void *data, u64 val)
{
spu_release(ctx);
}
-static u64 spufs_decr_status_get(void *data)
+static u64 __spufs_decr_status_get(void *data)
{
struct spu_context *ctx = data;
struct spu_lscsa *lscsa = ctx->csa.lscsa;
+ return lscsa->decr_status.slot[0];
+}
+
+static u64 spufs_decr_status_get(void *data)
+{
+ struct spu_context *ctx = data;
u64 ret;
spu_acquire_saved(ctx);
- ret = lscsa->decr_status.slot[0];
+ ret = __spufs_decr_status_get(data);
spu_release(ctx);
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(spufs_decr_status_ops, spufs_decr_status_get,
- spufs_decr_status_set, "%llx\n")
+ spufs_decr_status_set, "0x%llx\n")
-static void spufs_spu_tag_mask_set(void *data, u64 val)
+static void spufs_event_mask_set(void *data, u64 val)
{
struct spu_context *ctx = data;
struct spu_lscsa *lscsa = ctx->csa.lscsa;
spu_acquire_saved(ctx);
- lscsa->tag_mask.slot[0] = (u32) val;
+ lscsa->event_mask.slot[0] = (u32) val;
spu_release(ctx);
}
-static u64 spufs_spu_tag_mask_get(void *data)
+static u64 __spufs_event_mask_get(void *data)
{
struct spu_context *ctx = data;
struct spu_lscsa *lscsa = ctx->csa.lscsa;
+ return lscsa->event_mask.slot[0];
+}
+
+static u64 spufs_event_mask_get(void *data)
+{
+ struct spu_context *ctx = data;
u64 ret;
spu_acquire_saved(ctx);
- ret = lscsa->tag_mask.slot[0];
+ ret = __spufs_event_mask_get(data);
spu_release(ctx);
return ret;
}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_spu_tag_mask_ops, spufs_spu_tag_mask_get,
- spufs_spu_tag_mask_set, "%llx\n")
+DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
+ spufs_event_mask_set, "0x%llx\n")
-static void spufs_event_mask_set(void *data, u64 val)
+static u64 __spufs_event_status_get(void *data)
{
struct spu_context *ctx = data;
- struct spu_lscsa *lscsa = ctx->csa.lscsa;
- spu_acquire_saved(ctx);
- lscsa->event_mask.slot[0] = (u32) val;
- spu_release(ctx);
+ struct spu_state *state = &ctx->csa;
+ u64 stat;
+ stat = state->spu_chnlcnt_RW[0];
+ if (stat)
+ return state->spu_chnldata_RW[0];
+ return 0;
}
-static u64 spufs_event_mask_get(void *data)
+static u64 spufs_event_status_get(void *data)
{
struct spu_context *ctx = data;
- struct spu_lscsa *lscsa = ctx->csa.lscsa;
- u64 ret;
+ u64 ret = 0;
+
spu_acquire_saved(ctx);
- ret = lscsa->event_mask.slot[0];
+ ret = __spufs_event_status_get(data);
spu_release(ctx);
return ret;
}
-DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
- spufs_event_mask_set, "%llx\n")
+DEFINE_SIMPLE_ATTRIBUTE(spufs_event_status_ops, spufs_event_status_get,
+ NULL, "0x%llx\n")
static void spufs_srr0_set(void *data, u64 val)
{
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(spufs_srr0_ops, spufs_srr0_get, spufs_srr0_set,
- "%llx\n")
+ "0x%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, NULL, "0x%llx\n")
+
+static u64 __spufs_object_id_get(void *data)
+{
+ struct spu_context *ctx = data;
+ return ctx->object_id;
+}
+
+static u64 spufs_object_id_get(void *data)
+{
+ /* FIXME: Should there really be no locking here? */
+ return __spufs_object_id_get(data);
+}
+
+static void spufs_object_id_set(void *data, u64 id)
+{
+ struct spu_context *ctx = data;
+ ctx->object_id = id;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(spufs_object_id_ops, spufs_object_id_get,
+ spufs_object_id_set, "0x%llx\n");
+
+static u64 __spufs_lslr_get(void *data)
+{
+ struct spu_context *ctx = data;
+ return ctx->csa.priv2.spu_lslr_RW;
+}
+
+static u64 spufs_lslr_get(void *data)
+{
+ struct spu_context *ctx = data;
+ u64 ret;
+
+ spu_acquire_saved(ctx);
+ ret = __spufs_lslr_get(data);
+ spu_release(ctx);
+
+ return ret;
+}
+DEFINE_SIMPLE_ATTRIBUTE(spufs_lslr_ops, spufs_lslr_get, NULL, "0x%llx\n")
+
+static int spufs_info_open(struct inode *inode, struct file *file)
+{
+ struct spufs_inode_info *i = SPUFS_I(inode);
+ struct spu_context *ctx = i->i_ctx;
+ file->private_data = ctx;
+ return 0;
+}
+
+static ssize_t __spufs_mbox_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
+{
+ u32 mbox_stat;
+ u32 data;
+
+ mbox_stat = ctx->csa.prob.mb_stat_R;
+ if (mbox_stat & 0x0000ff) {
+ data = ctx->csa.prob.pu_mb_R;
+ }
+
+ return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
+}
+
+static ssize_t spufs_mbox_info_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ int ret;
+ struct spu_context *ctx = file->private_data;
+
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ spu_acquire_saved(ctx);
+ spin_lock(&ctx->csa.register_lock);
+ ret = __spufs_mbox_info_read(ctx, buf, len, pos);
+ spin_unlock(&ctx->csa.register_lock);
+ spu_release(ctx);
+
+ return ret;
+}
+
+static struct file_operations spufs_mbox_info_fops = {
+ .open = spufs_info_open,
+ .read = spufs_mbox_info_read,
+ .llseek = generic_file_llseek,
+};
+
+static ssize_t __spufs_ibox_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
+{
+ u32 ibox_stat;
+ u32 data;
+
+ ibox_stat = ctx->csa.prob.mb_stat_R;
+ if (ibox_stat & 0xff0000) {
+ data = ctx->csa.priv2.puint_mb_R;
+ }
+
+ return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
+}
+
+static ssize_t spufs_ibox_info_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ struct spu_context *ctx = file->private_data;
+ int ret;
+
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ spu_acquire_saved(ctx);
+ spin_lock(&ctx->csa.register_lock);
+ ret = __spufs_ibox_info_read(ctx, buf, len, pos);
+ spin_unlock(&ctx->csa.register_lock);
+ spu_release(ctx);
+
+ return ret;
+}
+
+static struct file_operations spufs_ibox_info_fops = {
+ .open = spufs_info_open,
+ .read = spufs_ibox_info_read,
+ .llseek = generic_file_llseek,
+};
+
+static ssize_t __spufs_wbox_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
+{
+ int i, cnt;
+ u32 data[4];
+ u32 wbox_stat;
+
+ wbox_stat = ctx->csa.prob.mb_stat_R;
+ cnt = 4 - ((wbox_stat & 0x00ff00) >> 8);
+ for (i = 0; i < cnt; i++) {
+ data[i] = ctx->csa.spu_mailbox_data[i];
+ }
+
+ return simple_read_from_buffer(buf, len, pos, &data,
+ cnt * sizeof(u32));
+}
+
+static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ struct spu_context *ctx = file->private_data;
+ int ret;
+
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ spu_acquire_saved(ctx);
+ spin_lock(&ctx->csa.register_lock);
+ ret = __spufs_wbox_info_read(ctx, buf, len, pos);
+ spin_unlock(&ctx->csa.register_lock);
+ spu_release(ctx);
+
+ return ret;
+}
+
+static struct file_operations spufs_wbox_info_fops = {
+ .open = spufs_info_open,
+ .read = spufs_wbox_info_read,
+ .llseek = generic_file_llseek,
+};
+
+static ssize_t __spufs_dma_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
+{
+ struct spu_dma_info info;
+ struct mfc_cq_sr *qp, *spuqp;
+ int i;
+
+ info.dma_info_type = ctx->csa.priv2.spu_tag_status_query_RW;
+ info.dma_info_mask = ctx->csa.lscsa->tag_mask.slot[0];
+ info.dma_info_status = ctx->csa.spu_chnldata_RW[24];
+ info.dma_info_stall_and_notify = ctx->csa.spu_chnldata_RW[25];
+ info.dma_info_atomic_command_status = ctx->csa.spu_chnldata_RW[27];
+ for (i = 0; i < 16; i++) {
+ qp = &info.dma_info_command_data[i];
+ spuqp = &ctx->csa.priv2.spuq[i];
+
+ qp->mfc_cq_data0_RW = spuqp->mfc_cq_data0_RW;
+ qp->mfc_cq_data1_RW = spuqp->mfc_cq_data1_RW;
+ qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW;
+ qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW;
+ }
+
+ return simple_read_from_buffer(buf, len, pos, &info,
+ sizeof info);
+}
+
+static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ struct spu_context *ctx = file->private_data;
+ int ret;
+
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ spu_acquire_saved(ctx);
+ spin_lock(&ctx->csa.register_lock);
+ ret = __spufs_dma_info_read(ctx, buf, len, pos);
+ spin_unlock(&ctx->csa.register_lock);
+ spu_release(ctx);
+
+ return ret;
+}
+
+static struct file_operations spufs_dma_info_fops = {
+ .open = spufs_info_open,
+ .read = spufs_dma_info_read,
+};
+
+static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
+{
+ struct spu_proxydma_info info;
+ struct mfc_cq_sr *qp, *puqp;
+ int ret = sizeof info;
+ int i;
+
+ if (len < ret)
+ return -EINVAL;
+
+ if (!access_ok(VERIFY_WRITE, buf, len))
+ return -EFAULT;
+
+ info.proxydma_info_type = ctx->csa.prob.dma_querytype_RW;
+ info.proxydma_info_mask = ctx->csa.prob.dma_querymask_RW;
+ info.proxydma_info_status = ctx->csa.prob.dma_tagstatus_R;
+ for (i = 0; i < 8; i++) {
+ qp = &info.proxydma_info_command_data[i];
+ puqp = &ctx->csa.priv2.puq[i];
+
+ qp->mfc_cq_data0_RW = puqp->mfc_cq_data0_RW;
+ qp->mfc_cq_data1_RW = puqp->mfc_cq_data1_RW;
+ qp->mfc_cq_data2_RW = puqp->mfc_cq_data2_RW;
+ qp->mfc_cq_data3_RW = puqp->mfc_cq_data3_RW;
+ }
+
+ return simple_read_from_buffer(buf, len, pos, &info,
+ sizeof info);
+}
+
+static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
+ size_t len, loff_t *pos)
+{
+ struct spu_context *ctx = file->private_data;
+ int ret;
+
+ spu_acquire_saved(ctx);
+ spin_lock(&ctx->csa.register_lock);
+ ret = __spufs_proxydma_info_read(ctx, buf, len, pos);
+ spin_unlock(&ctx->csa.register_lock);
+ spu_release(ctx);
+
+ return ret;
+}
+
+static struct file_operations spufs_proxydma_info_fops = {
+ .open = spufs_info_open,
+ .read = spufs_proxydma_info_read,
+};
struct tree_descr spufs_dir_contents[] = {
{ "mem", &spufs_mem_fops, 0666, },
{ "signal2", &spufs_signal2_fops, 0666, },
{ "signal1_type", &spufs_signal1_type, 0666, },
{ "signal2_type", &spufs_signal2_type, 0666, },
- { "mfc", &spufs_mfc_fops, 0666, },
{ "cntl", &spufs_cntl_fops, 0666, },
- { "npc", &spufs_npc_ops, 0666, },
{ "fpcr", &spufs_fpcr_fops, 0666, },
+ { "lslr", &spufs_lslr_ops, 0444, },
+ { "mfc", &spufs_mfc_fops, 0666, },
+ { "mss", &spufs_mss_fops, 0666, },
+ { "npc", &spufs_npc_ops, 0666, },
+ { "srr0", &spufs_srr0_ops, 0666, },
{ "decr", &spufs_decr_ops, 0666, },
{ "decr_status", &spufs_decr_status_ops, 0666, },
- { "spu_tag_mask", &spufs_spu_tag_mask_ops, 0666, },
{ "event_mask", &spufs_event_mask_ops, 0666, },
- { "srr0", &spufs_srr0_ops, 0666, },
+ { "event_status", &spufs_event_status_ops, 0444, },
+ { "psmap", &spufs_psmap_fops, 0666, },
+ { "phys-id", &spufs_id_ops, 0666, },
+ { "object-id", &spufs_object_id_ops, 0666, },
+ { "mbox_info", &spufs_mbox_info_fops, 0444, },
+ { "ibox_info", &spufs_ibox_info_fops, 0444, },
+ { "wbox_info", &spufs_wbox_info_fops, 0444, },
+ { "dma_info", &spufs_dma_info_fops, 0444, },
+ { "proxydma_info", &spufs_proxydma_info_fops, 0444, },
+ {},
+};
+
+struct tree_descr spufs_dir_nosched_contents[] = {
+ { "mem", &spufs_mem_fops, 0666, },
+ { "mbox", &spufs_mbox_fops, 0444, },
+ { "ibox", &spufs_ibox_fops, 0444, },
+ { "wbox", &spufs_wbox_fops, 0222, },
+ { "mbox_stat", &spufs_mbox_stat_fops, 0444, },
+ { "ibox_stat", &spufs_ibox_stat_fops, 0444, },
+ { "wbox_stat", &spufs_wbox_stat_fops, 0444, },
+ { "signal1", &spufs_signal1_fops, 0666, },
+ { "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, },
+ { "psmap", &spufs_psmap_fops, 0666, },
+ { "phys-id", &spufs_id_ops, 0666, },
+ { "object-id", &spufs_object_id_ops, 0666, },
{},
};
+
+struct spufs_coredump_reader spufs_coredump_read[] = {
+ { "regs", __spufs_regs_read, NULL, 128 * 16 },
+ { "fpcr", __spufs_fpcr_read, NULL, 16 },
+ { "lslr", NULL, __spufs_lslr_get, 11 },
+ { "decr", NULL, __spufs_decr_get, 11 },
+ { "decr_status", NULL, __spufs_decr_status_get, 11 },
+ { "mem", __spufs_mem_read, NULL, 256 * 1024, },
+ { "signal1", __spufs_signal1_read, NULL, 4 },
+ { "signal1_type", NULL, __spufs_signal1_type_get, 2 },
+ { "signal2", __spufs_signal2_read, NULL, 4 },
+ { "signal2_type", NULL, __spufs_signal2_type_get, 2 },
+ { "event_mask", NULL, __spufs_event_mask_get, 8 },
+ { "event_status", NULL, __spufs_event_status_get, 8 },
+ { "mbox_info", __spufs_mbox_info_read, NULL, 4 },
+ { "ibox_info", __spufs_ibox_info_read, NULL, 4 },
+ { "wbox_info", __spufs_wbox_info_read, NULL, 16 },
+ { "dma_info", __spufs_dma_info_read, NULL, 69 * 8 },
+ { "proxydma_info", __spufs_proxydma_info_read, NULL, 35 * 8 },
+ { "object-id", NULL, __spufs_object_id_get, 19 },
+ { },
+};
+int spufs_coredump_num_notes = ARRAY_SIZE(spufs_coredump_read) - 1;
+
git://git.onelab.eu / linux-2.6.git / blobdiff