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Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/file.c')
-rw-r--r--arch/powerpc/platforms/cell/spufs/file.c327
1 files changed, 241 insertions, 86 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 50e0afc46ad..347eff56fcb 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -39,7 +39,6 @@
#define SPUFS_MMAP_4K (PAGE_SIZE == 0x1000)
-
static int
spufs_mem_open(struct inode *inode, struct file *file)
{
@@ -52,18 +51,23 @@ spufs_mem_open(struct inode *inode, struct file *file)
}
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;
}
@@ -262,18 +266,23 @@ spufs_regs_open(struct inode *inode, struct file *file)
}
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;
}
@@ -308,18 +317,23 @@ static struct file_operations spufs_regs_fops = {
};
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;
}
@@ -719,22 +733,19 @@ static int spufs_signal1_open(struct inode *inode, struct file *file)
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_saved(ctx);
if (ctx->csa.spu_chnlcnt_RW[3]) {
data = ctx->csa.spu_chnldata_RW[3];
ret = 4;
}
- spu_release(ctx);
if (!ret)
goto out;
@@ -746,6 +757,19 @@ 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,
size_t len, loff_t *pos)
{
@@ -816,22 +840,19 @@ 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 = file->private_data;
int ret = 0;
u32 data;
if (len < 4)
return -EINVAL;
- spu_acquire_saved(ctx);
if (ctx->csa.spu_chnlcnt_RW[4]) {
data = ctx->csa.spu_chnldata_RW[4];
ret = 4;
}
- spu_release(ctx);
if (!ret)
goto out;
@@ -840,7 +861,20 @@ static ssize_t spufs_signal2_read(struct file *file, char __user *buf,
return -EFAULT;
out:
- return 4;
+ 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,
@@ -916,13 +950,19 @@ 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;
@@ -939,13 +979,19 @@ static void spufs_signal2_type_set(void *data, u64 val)
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;
@@ -1387,13 +1433,19 @@ 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;
}
@@ -1409,13 +1461,19 @@ 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;
}
@@ -1431,30 +1489,43 @@ static void spufs_event_mask_set(void *data, u64 val)
spu_release(ctx);
}
-static u64 spufs_event_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->event_mask.slot[0];
+ ret = __spufs_event_mask_get(data);
spu_release(ctx);
return ret;
}
DEFINE_SIMPLE_ATTRIBUTE(spufs_event_mask_ops, spufs_event_mask_get,
spufs_event_mask_set, "0x%llx\n")
-static u64 spufs_event_status_get(void *data)
+static u64 __spufs_event_status_get(void *data)
{
struct spu_context *ctx = data;
struct spu_state *state = &ctx->csa;
- u64 ret = 0;
u64 stat;
-
- spu_acquire_saved(ctx);
stat = state->spu_chnlcnt_RW[0];
if (stat)
- ret = state->spu_chnldata_RW[0];
+ return state->spu_chnldata_RW[0];
+ return 0;
+}
+
+static u64 spufs_event_status_get(void *data)
+{
+ struct spu_context *ctx = data;
+ u64 ret = 0;
+
+ spu_acquire_saved(ctx);
+ ret = __spufs_event_status_get(data);
spu_release(ctx);
return ret;
}
@@ -1499,12 +1570,18 @@ static u64 spufs_id_get(void *data)
}
DEFINE_SIMPLE_ATTRIBUTE(spufs_id_ops, spufs_id_get, NULL, "0x%llx\n")
-static u64 spufs_object_id_get(void *data)
+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;
@@ -1514,13 +1591,19 @@ static void spufs_object_id_set(void *data, u64 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 = ctx->csa.priv2.spu_lslr_RW;
+ ret = __spufs_lslr_get(data);
spu_release(ctx);
return ret;
@@ -1535,26 +1618,36 @@ static int spufs_info_open(struct inode *inode, struct file *file)
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;
- u32 mbox_stat;
- u32 data;
if (!access_ok(VERIFY_WRITE, buf, len))
return -EFAULT;
spu_acquire_saved(ctx);
spin_lock(&ctx->csa.register_lock);
- mbox_stat = ctx->csa.prob.mb_stat_R;
- if (mbox_stat & 0x0000ff) {
- data = ctx->csa.prob.pu_mb_R;
- }
+ ret = __spufs_mbox_info_read(ctx, buf, len, pos);
spin_unlock(&ctx->csa.register_lock);
spu_release(ctx);
- return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
+ return ret;
}
static struct file_operations spufs_mbox_info_fops = {
@@ -1563,26 +1656,36 @@ static struct file_operations spufs_mbox_info_fops = {
.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;
- u32 ibox_stat;
- u32 data;
+ int ret;
if (!access_ok(VERIFY_WRITE, buf, len))
return -EFAULT;
spu_acquire_saved(ctx);
spin_lock(&ctx->csa.register_lock);
- ibox_stat = ctx->csa.prob.mb_stat_R;
- if (ibox_stat & 0xff0000) {
- data = ctx->csa.priv2.puint_mb_R;
- }
+ ret = __spufs_ibox_info_read(ctx, buf, len, pos);
spin_unlock(&ctx->csa.register_lock);
spu_release(ctx);
- return simple_read_from_buffer(buf, len, pos, &data, sizeof data);
+ return ret;
}
static struct file_operations spufs_ibox_info_fops = {
@@ -1591,29 +1694,39 @@ static struct file_operations spufs_ibox_info_fops = {
.llseek = generic_file_llseek,
};
-static ssize_t spufs_wbox_info_read(struct file *file, char __user *buf,
- size_t len, loff_t *pos)
+static ssize_t __spufs_wbox_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
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);
- wbox_stat = ctx->csa.prob.mb_stat_R;
- cnt = (wbox_stat & 0x00ff00) >> 8;
- for (i = 0; i < cnt; i++) {
- data[i] = ctx->csa.spu_mailbox_data[i];
- }
+ ret = __spufs_wbox_info_read(ctx, buf, len, pos);
spin_unlock(&ctx->csa.register_lock);
spu_release(ctx);
- return simple_read_from_buffer(buf, len, pos, &data,
- cnt * sizeof(u32));
+ return ret;
}
static struct file_operations spufs_wbox_info_fops = {
@@ -1622,19 +1735,13 @@ static struct file_operations spufs_wbox_info_fops = {
.llseek = generic_file_llseek,
};
-static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
- size_t len, loff_t *pos)
+static ssize_t __spufs_dma_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
struct spu_dma_info info;
struct mfc_cq_sr *qp, *spuqp;
int i;
- if (!access_ok(VERIFY_WRITE, buf, len))
- return -EFAULT;
-
- spu_acquire_saved(ctx);
- spin_lock(&ctx->csa.register_lock);
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];
@@ -1649,25 +1756,40 @@ static ssize_t spufs_dma_info_read(struct file *file, char __user *buf,
qp->mfc_cq_data2_RW = spuqp->mfc_cq_data2_RW;
qp->mfc_cq_data3_RW = spuqp->mfc_cq_data3_RW;
}
- spin_unlock(&ctx->csa.register_lock);
- spu_release(ctx);
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 file *file, char __user *buf,
- size_t len, loff_t *pos)
+static ssize_t __spufs_proxydma_info_read(struct spu_context *ctx,
+ char __user *buf, size_t len, loff_t *pos)
{
- struct spu_context *ctx = file->private_data;
struct spu_proxydma_info info;
- int ret = sizeof info;
struct mfc_cq_sr *qp, *puqp;
+ int ret = sizeof info;
int i;
if (len < ret)
@@ -1676,8 +1798,6 @@ static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
if (!access_ok(VERIFY_WRITE, buf, len))
return -EFAULT;
- spu_acquire_saved(ctx);
- spin_lock(&ctx->csa.register_lock);
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;
@@ -1690,12 +1810,23 @@ static ssize_t spufs_proxydma_info_read(struct file *file, char __user *buf,
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);
- if (copy_to_user(buf, &info, sizeof info))
- ret = -EFAULT;
-
return ret;
}
@@ -1760,3 +1891,27 @@ struct tree_descr spufs_dir_nosched_contents[] = {
{ "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;
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-31 01:09:29 +0000