int hda_i915_init(void)
{
int err = 0;
get_power = symbol_request(i915_request_power_well);
if (!get_power) {
pr_warn("hda-i915: get_power symbol get fail\n");
return -ENODEV;
}
put_power = symbol_request(i915_release_power_well);
if (!put_power) {
symbol_put(i915_request_power_well);
get_power = NULL;
return -ENODEV;
}
get_cdclk = symbol_request(i915_get_cdclk_freq);
if (!get_cdclk) /* may have abnormal BCLK and audio playback rate */
pr_warn("hda-i915: get_cdclk symbol get fail\n");
pr_debug("HDA driver get symbol successfully from i915 module\n");
return err;
}
int hda_i915_init(bool is_broadwell)
{
int err = 0;
if (is_broadwell)
get_power = symbol_request(i915_bdw_request_power_well);
else
get_power = symbol_request(i915_request_power_well);
if (!get_power) {
snd_printk(KERN_WARNING "hda-i915: get_power symbol get fail\n");
return -ENODEV;
}
if (is_broadwell)
put_power = symbol_request(i915_bdw_release_power_well);
else
put_power = symbol_request(i915_release_power_well);
if (!put_power) {
symbol_put(i915_request_power_well);
get_power = NULL;
return -ENODEV;
}
snd_printd("HDA driver get symbol successfully from i915 module\n");
return err;
}
int amdgpu_amdkfd_init(void)
{
int ret;
#if defined(CONFIG_HSA_AMD_MODULE)
int (*kgd2kfd_init_p)(unsigned, const struct kgd2kfd_calls**);
kgd2kfd_init_p = symbol_request(kgd2kfd_init);
if (kgd2kfd_init_p == NULL)
return -ENOENT;
ret = kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kgd2kfd);
if (ret) {
symbol_put(kgd2kfd_init);
kgd2kfd = NULL;
}
#elif defined(CONFIG_HSA_AMD)
ret = kgd2kfd_init(KFD_INTERFACE_VERSION, &kgd2kfd);
if (ret)
kgd2kfd = NULL;
#else
ret = -ENOENT;
#endif
return ret;
}
static void alc_fixup_dell_wmi(struct hda_codec *codec,
const struct hda_fixup *fix, int action)
{
struct alc_spec *spec = codec->spec;
bool removefunc = false;
if (action == HDA_FIXUP_ACT_PROBE) {
if (!dell_led_set_func)
dell_led_set_func = symbol_request(dell_app_wmi_led_set);
if (!dell_led_set_func) {
codec_warn(codec, "Failed to find dell wmi symbol dell_app_wmi_led_set\n");
return;
}
removefunc = true;
if (dell_led_set_func(DELL_LED_MICMUTE, false) >= 0) {
dell_led_value = 0;
if (spec->gen.num_adc_nids > 1)
codec_dbg(codec, "Skipping micmute LED control due to several ADCs");
else {
dell_old_cap_hook = spec->gen.cap_sync_hook;
spec->gen.cap_sync_hook = update_dell_wmi_micmute_led;
removefunc = false;
}
}
}
if (dell_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
symbol_put(dell_app_wmi_led_set);
dell_led_set_func = NULL;
dell_old_cap_hook = NULL;
}
}
int kfd_init_peer_direct(void)
{
int result;
pr_debug("Try to initialize PeerDirect support\n");
pfn_ib_register_peer_memory_client =
(void *(*)(struct peer_memory_client *,
invalidate_peer_memory *))
symbol_request(ib_register_peer_memory_client);
pfn_ib_unregister_peer_memory_client = (void (*)(void *))
symbol_request(ib_unregister_peer_memory_client);
if (!pfn_ib_register_peer_memory_client ||
!pfn_ib_unregister_peer_memory_client) {
pr_warn("amdkfd: PeerDirect interface was not detected\n");
return -EINVAL;
}
result = amdkfd_query_rdma_interface(&rdma_interface);
if (result < 0) {
pr_err("amdkfd: Cannot get RDMA Interface (result = %d)\n",
result);
return result;
}
strcpy(amd_mem_client.name, AMD_PEER_BRIDGE_DRIVER_NAME);
strcpy(amd_mem_client.version, AMD_PEER_BRIDGE_DRIVER_VERSION);
ib_reg_handle = pfn_ib_register_peer_memory_client(&amd_mem_client,
&ib_invalidate_callback);
if (!ib_reg_handle) {
pr_err("amdkfd: Cannot register peer memory client\n");
return -EINVAL;
}
pr_info("amdkfd: PeerDirect support was initialized successfully\n");
return 0;
}
static void __init DoC_Probe(unsigned long physadr)
{
void __iomem *docptr;
struct DiskOnChip *this;
struct mtd_info *mtd;
int ChipID;
char namebuf[15];
char *name = namebuf;
void (*initroutine)(struct mtd_info *) = NULL;
docptr = ioremap(physadr, DOC_IOREMAP_LEN);
if (!docptr)
return;
if ((ChipID = doccheck(docptr, physadr))) {
if (ChipID == DOC_ChipID_Doc2kTSOP) {
/* Remove this at your own peril. The hardware driver works but nothing prevents you from erasing bad blocks */
printk(KERN_NOTICE "Refusing to drive DiskOnChip 2000 TSOP until Bad Block Table is correctly supported by INFTL\n");
iounmap(docptr);
return;
}
docfound = 1;
mtd = kmalloc(sizeof(struct DiskOnChip) + sizeof(struct mtd_info), GFP_KERNEL);
if (!mtd) {
printk(KERN_WARNING "Cannot allocate memory for data structures. Dropping.\n");
iounmap(docptr);
return;
}
this = (struct DiskOnChip *)(&mtd[1]);
memset((char *)mtd,0, sizeof(struct mtd_info));
memset((char *)this, 0, sizeof(struct DiskOnChip));
mtd->priv = this;
this->virtadr = docptr;
this->physadr = physadr;
this->ChipID = ChipID;
sprintf(namebuf, "with ChipID %2.2X", ChipID);
switch(ChipID) {
case DOC_ChipID_Doc2kTSOP:
name="2000 TSOP";
initroutine = symbol_request(DoC2k_init);
break;
case DOC_ChipID_Doc2k:
name="2000";
initroutine = symbol_request(DoC2k_init);
break;
case DOC_ChipID_DocMil:
name="Millennium";
#ifdef DOC_SINGLE_DRIVER
initroutine = symbol_request(DoC2k_init);
#else
initroutine = symbol_request(DoCMil_init);
#endif /* DOC_SINGLE_DRIVER */
break;
case DOC_ChipID_DocMilPlus16:
case DOC_ChipID_DocMilPlus32:
name="MillenniumPlus";
initroutine = symbol_request(DoCMilPlus_init);
break;
}
if (initroutine) {
(*initroutine)(mtd);
symbol_put_addr(initroutine);
return;
}
printk(KERN_NOTICE "Cannot find driver for DiskOnChip %s at 0x%lX\n", name, physadr);
kfree(mtd);
}
iounmap(docptr);
}
/*
* out_sz (out) size of data put into it by process_kex_msg
* (in) space available in out_buf
*/
int process_kex_msg(struct priv_crypt_ctx *cctx,
size_t *out_sz, u8 *out_buf,
size_t in_sz, u8 *in_buf)
{
int rc = -1, i;
u8 msg_type;
u8 key_buf[MAX_KEY_LEN];
struct dhm_kex *kex;
const struct dhm_kex_ops *kex_ops;
#ifdef KEX_DEBUG
const size_t debug_msg_sz = 256;
#endif
if (in_sz < sizeof(u8)) {
printk(KERN_ERR "kex_msg too short\n");
rc = -1;
goto out;
}
msg_type = in_buf[0];
DPRINTF("%s: msg type %u\n", __func__, (unsigned int)msg_type);
switch (msg_type) {
case PRIV_CRYPT_KEX_PARAMS:
kex_ops = symbol_request(cm_dhm_kex_ops);
if (kex_ops == NULL) {
printk(KERN_ERR "cannot load kex operations\n");
goto put;
}
if ((rc = kex_ops->init(&kex)) < 0)
goto put;
*out_sz -= 1;
if ((rc = kex_ops->respond(kex,
out_sz, out_buf+1,
in_sz-1, in_buf+1)) < 0)
goto destroy;
*out_sz += 1;
if ((rc = kex_ops->get_key(kex, cctx->key_size, key_buf)) < 0)
goto destroy;
if ((rc = priv_set_key(cctx, cctx->key_size, key_buf)) < 0)
goto destroy;
destroy:
kex_ops->destroy(kex);
out_buf[0] = PRIV_CRYPT_KEX_RESPONSE;
put:
symbol_put(cm_dhm_kex_ops);
if (rc < 0)
goto out;
break;
#ifdef KEX_DEBUG
case PRIV_CRYPT_KEX_DEBUG:
DPRINTF("message:\n");
DPRINT_HEX(in_sz - sizeof(u8), in_buf + sizeof(u8));
/* debug response message */
out_buf[0] = PRIV_CRYPT_KEX_DEBUG;
for (i = sizeof(u8); i < sizeof(u8) + debug_msg_sz; i++) {
out_buf[i] = (u8)(i - 1);
}
*out_sz = sizeof(u8) + debug_msg_sz;
break;
#endif
default:
printk(KERN_ERR "%s: unknown msg type %u\n",
__func__, msg_type);
goto out;
break;
}
rc = 0;
out:
memset(key_buf, 0, sizeof(key_buf));
return rc;
}