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---
r: 75220
b: refs/heads/master
c: aed3a8c
h: refs/heads/master
v: v3
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Bob Nelson authored and Paul Mackerras committed Dec 28, 2007
1 parent 95cccec commit e2257f8
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Showing 11 changed files with 122 additions and 88 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 29a09a7b138b1708de3d98a92fddcc18268084aa
refs/heads/master: aed3a8c9bb1a8623a618232087c5ff62718e3b9a
5 changes: 5 additions & 0 deletions trunk/arch/powerpc/platforms/cell/Kconfig
Original file line number Diff line number Diff line change
Expand Up @@ -88,3 +88,8 @@ config CBE_CPUFREQ_PMI
but also at lower core voltage.

endmenu

config OPROFILE_CELL
def_bool y
depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y)

1 change: 1 addition & 0 deletions trunk/arch/powerpc/platforms/cell/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ spu-manage-$(CONFIG_PPC_CELLEB) += spu_manage.o
spu-manage-$(CONFIG_PPC_CELL_NATIVE) += spu_manage.o

obj-$(CONFIG_SPU_BASE) += spu_callbacks.o spu_base.o \
spu_notify.o \
spu_syscalls.o \
$(spu-priv1-y) \
$(spu-manage-y) \
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67 changes: 67 additions & 0 deletions trunk/arch/powerpc/platforms/cell/spu_notify.c
Original file line number Diff line number Diff line change
@@ -0,0 +1,67 @@
/*
* Move OProfile dependencies from spufs module to the kernel so it
* can run on non-cell PPC.
*
* Copyright (C) IBM 2005
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#undef DEBUG

#include <linux/module.h>
#include <asm/spu.h>
#include "spufs/spufs.h"

static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);

void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
{
blocking_notifier_call_chain(&spu_switch_notifier,
ctx ? ctx->object_id : 0, spu);
}
EXPORT_SYMBOL_GPL(spu_switch_notify);

int spu_switch_event_register(struct notifier_block *n)
{
int ret;
ret = blocking_notifier_chain_register(&spu_switch_notifier, n);
if (!ret)
notify_spus_active();
return ret;
}
EXPORT_SYMBOL_GPL(spu_switch_event_register);

int spu_switch_event_unregister(struct notifier_block *n)
{
return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
}
EXPORT_SYMBOL_GPL(spu_switch_event_unregister);

void spu_set_profile_private_kref(struct spu_context *ctx,
struct kref *prof_info_kref,
void (* prof_info_release) (struct kref *kref))
{
ctx->prof_priv_kref = prof_info_kref;
ctx->prof_priv_release = prof_info_release;
}
EXPORT_SYMBOL_GPL(spu_set_profile_private_kref);

void *spu_get_profile_private_kref(struct spu_context *ctx)
{
return ctx->prof_priv_kref;
}
EXPORT_SYMBOL_GPL(spu_get_profile_private_kref);

14 changes: 14 additions & 0 deletions trunk/arch/powerpc/platforms/cell/spu_syscalls.c
Original file line number Diff line number Diff line change
Expand Up @@ -145,6 +145,20 @@ int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset)
return ret;
}

void notify_spus_active(void)
{
struct spufs_calls *calls;

calls = spufs_calls_get();
if (!calls)
return;

calls->notify_spus_active();
spufs_calls_put(calls);

return;
}

int register_spu_syscalls(struct spufs_calls *calls)
{
if (spufs_calls)
Expand Down
16 changes: 0 additions & 16 deletions trunk/arch/powerpc/platforms/cell/spufs/context.c
Original file line number Diff line number Diff line change
Expand Up @@ -190,19 +190,3 @@ void spu_release_saved(struct spu_context *ctx)
spu_release(ctx);
}

void spu_set_profile_private_kref(struct spu_context *ctx,
struct kref *prof_info_kref,
void ( * prof_info_release) (struct kref *kref))
{
ctx->prof_priv_kref = prof_info_kref;
ctx->prof_priv_release = prof_info_release;
}
EXPORT_SYMBOL_GPL(spu_set_profile_private_kref);

void *spu_get_profile_private_kref(struct spu_context *ctx)
{
return ctx->prof_priv_kref;
}
EXPORT_SYMBOL_GPL(spu_get_profile_private_kref);


29 changes: 7 additions & 22 deletions trunk/arch/powerpc/platforms/cell/spufs/sched.c
Original file line number Diff line number Diff line change
Expand Up @@ -166,15 +166,7 @@ static int node_allowed(struct spu_context *ctx, int node)
return rval;
}

static BLOCKING_NOTIFIER_HEAD(spu_switch_notifier);

void spu_switch_notify(struct spu *spu, struct spu_context *ctx)
{
blocking_notifier_call_chain(&spu_switch_notifier,
ctx ? ctx->object_id : 0, spu);
}

static void notify_spus_active(void)
void do_notify_spus_active(void)
{
int node;

Expand All @@ -200,22 +192,15 @@ static void notify_spus_active(void)
mutex_unlock(&cbe_spu_info[node].list_mutex);
}
}
EXPORT_SYMBOL_GPL(do_notify_spus_active);

int spu_switch_event_register(struct notifier_block * n)
{
int ret;
ret = blocking_notifier_chain_register(&spu_switch_notifier, n);
if (!ret)
notify_spus_active();
return ret;
}
EXPORT_SYMBOL_GPL(spu_switch_event_register);

int spu_switch_event_unregister(struct notifier_block * n)
#ifndef MODULE
void notify_spus_active(void)
{
return blocking_notifier_chain_unregister(&spu_switch_notifier, n);
do_notify_spus_active();
}
EXPORT_SYMBOL_GPL(spu_switch_event_unregister);
EXPORT_SYMBOL_GPL(notify_spus_active);
#endif

/**
* spu_bind_context - bind spu context to physical spu
Expand Down
1 change: 1 addition & 0 deletions trunk/arch/powerpc/platforms/cell/spufs/syscalls.c
Original file line number Diff line number Diff line change
Expand Up @@ -86,5 +86,6 @@ struct spufs_calls spufs_calls = {
.spu_run = do_spu_run,
.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
.notify_spus_active = do_notify_spus_active,
.owner = THIS_MODULE,
};
53 changes: 4 additions & 49 deletions trunk/drivers/crypto/padlock-aes.c
Original file line number Diff line number Diff line change
Expand Up @@ -419,58 +419,13 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
/* ====== Encryption/decryption routines ====== */

/* These are the real call to PadLock. */
static inline void padlock_xcrypt(const u8 *input, u8 *output, void *key,
void *control_word)
{
asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
: "+S"(input), "+D"(output)
: "d"(control_word), "b"(key), "c"(1));
}

static void aes_crypt_copy(const u8 *in, u8 *out, u32 *key, struct cword *cword)
{
u8 tmp[AES_BLOCK_SIZE * 2]
__attribute__ ((__aligned__(PADLOCK_ALIGNMENT)));

memcpy(tmp, in, AES_BLOCK_SIZE);
padlock_xcrypt(tmp, out, key, cword);
}

static inline void aes_crypt(const u8 *in, u8 *out, u32 *key,
struct cword *cword)
{
asm volatile ("pushfl; popfl");

/* padlock_xcrypt requires at least two blocks of data. */
if (unlikely(!(((unsigned long)in ^ (PAGE_SIZE - AES_BLOCK_SIZE)) &
(PAGE_SIZE - 1)))) {
aes_crypt_copy(in, out, key, cword);
return;
}

padlock_xcrypt(in, out, key, cword);
}

static inline void padlock_xcrypt_ecb(const u8 *input, u8 *output, void *key,
void *control_word, u32 count)
{
if (count == 1) {
aes_crypt(input, output, key, control_word);
return;
}

asm volatile ("pushfl; popfl"); /* enforce key reload. */
asm volatile ("test $1, %%cl;"
"je 1f;"
"lea -1(%%ecx), %%eax;"
"mov $1, %%ecx;"
".byte 0xf3,0x0f,0xa7,0xc8;" /* rep xcryptecb */
"mov %%eax, %%ecx;"
"1:"
".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
asm volatile (".byte 0xf3,0x0f,0xa7,0xc8" /* rep xcryptecb */
: "+S"(input), "+D"(output)
: "d"(control_word), "b"(key), "c"(count)
: "ax");
: "d"(control_word), "b"(key), "c"(count));
}

static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
Expand All @@ -488,13 +443,13 @@ static inline u8 *padlock_xcrypt_cbc(const u8 *input, u8 *output, void *key,
static void aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
struct aes_ctx *ctx = aes_ctx(tfm);
aes_crypt(in, out, ctx->E, &ctx->cword.encrypt);
padlock_xcrypt_ecb(in, out, ctx->E, &ctx->cword.encrypt, 1);
}

static void aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
struct aes_ctx *ctx = aes_ctx(tfm);
aes_crypt(in, out, ctx->D, &ctx->cword.decrypt);
padlock_xcrypt_ecb(in, out, ctx->D, &ctx->cword.decrypt, 1);
}

static struct crypto_alg aes_alg = {
Expand Down
18 changes: 18 additions & 0 deletions trunk/drivers/pci/probe.c
Original file line number Diff line number Diff line change
Expand Up @@ -455,6 +455,22 @@ struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int
return child;
}

static void pci_enable_crs(struct pci_dev *dev)
{
u16 cap, rpctl;
int rpcap = pci_find_capability(dev, PCI_CAP_ID_EXP);
if (!rpcap)
return;

pci_read_config_word(dev, rpcap + PCI_CAP_FLAGS, &cap);
if (((cap & PCI_EXP_FLAGS_TYPE) >> 4) != PCI_EXP_TYPE_ROOT_PORT)
return;

pci_read_config_word(dev, rpcap + PCI_EXP_RTCTL, &rpctl);
rpctl |= PCI_EXP_RTCTL_CRSSVE;
pci_write_config_word(dev, rpcap + PCI_EXP_RTCTL, rpctl);
}

static void pci_fixup_parent_subordinate_busnr(struct pci_bus *child, int max)
{
struct pci_bus *parent = child->parent;
Expand Down Expand Up @@ -501,6 +517,8 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass
pci_write_config_word(dev, PCI_BRIDGE_CONTROL,
bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT);

pci_enable_crs(dev);

if ((buses & 0xffff00) && !pcibios_assign_all_busses() && !is_cardbus) {
unsigned int cmax, busnr;
/*
Expand Down
4 changes: 4 additions & 0 deletions trunk/include/asm-powerpc/spu.h
Original file line number Diff line number Diff line change
Expand Up @@ -246,6 +246,7 @@ struct spufs_calls {
__u32 __user *ustatus);
int (*coredump_extra_notes_size)(void);
int (*coredump_extra_notes_write)(struct file *file, loff_t *foffset);
void (*notify_spus_active)(void);
struct module *owner;
};

Expand Down Expand Up @@ -298,6 +299,9 @@ struct notifier_block;
int spu_switch_event_register(struct notifier_block * n);
int spu_switch_event_unregister(struct notifier_block * n);

extern void notify_spus_active(void);
extern void do_notify_spus_active(void);

/*
* This defines the Local Store, Problem Area and Privlege Area of an SPU.
*/
Expand Down

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