Linux-libre 4.5-gnu

1 files changed, 0 insertions, 332 deletions

diff --git a/drivers/crypto/qat/qat_dh895xcc/adf_isr.c b/drivers/crypto/qat/qat_dh895xcc/adf_isr.c
deleted file mode 100644
index 5570f7879..000000000
--- a/drivers/crypto/qat/qat_dh895xcc/adf_isr.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
-  This file is provided under a dual BSD/GPLv2 license.  When using or
-  redistributing this file, you may do so under either license.
-
-  GPL LICENSE SUMMARY
-  Copyright(c) 2014 Intel Corporation.
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of version 2 of the GNU General Public License as
-  published by the Free Software Foundation.
-
-  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.
-
-  Contact Information:
-  qat-linux@intel.com
-
-  BSD LICENSE
-  Copyright(c) 2014 Intel Corporation.
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions
-  are met:
-
-    * Redistributions of source code must retain the above copyright
-      notice, this list of conditions and the following disclaimer.
-    * Redistributions in binary form must reproduce the above copyright
-      notice, this list of conditions and the following disclaimer in
-      the documentation and/or other materials provided with the
-      distribution.
-    * Neither the name of Intel Corporation nor the names of its
-      contributors may be used to endorse or promote products derived
-      from this software without specific prior written permission.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <adf_accel_devices.h>
-#include <adf_common_drv.h>
-#include <adf_cfg.h>
-#include <adf_cfg_strings.h>
-#include <adf_cfg_common.h>
-#include <adf_transport_access_macros.h>
-#include <adf_transport_internal.h>
-#include "adf_drv.h"
-#include "adf_dh895xcc_hw_data.h"
-
-static int adf_enable_msix(struct adf_accel_dev *accel_dev)
-{
-	struct adf_accel_pci *pci_dev_info = &accel_dev->accel_pci_dev;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	u32 msix_num_entries = 1;
-
-	/* If SR-IOV is disabled, add entries for each bank */
-	if (!accel_dev->pf.vf_info) {
-		int i;
-
-		msix_num_entries += hw_data->num_banks;
-		for (i = 0; i < msix_num_entries; i++)
-			pci_dev_info->msix_entries.entries[i].entry = i;
-	} else {
-		pci_dev_info->msix_entries.entries[0].entry =
-			hw_data->num_banks;
-	}
-
-	if (pci_enable_msix_exact(pci_dev_info->pci_dev,
-				  pci_dev_info->msix_entries.entries,
-				  msix_num_entries)) {
-		dev_err(&GET_DEV(accel_dev), "Failed to enable MSI-X IRQ(s)\n");
-		return -EFAULT;
-	}
-	return 0;
-}
-
-static void adf_disable_msix(struct adf_accel_pci *pci_dev_info)
-{
-	pci_disable_msix(pci_dev_info->pci_dev);
-}
-
-static irqreturn_t adf_msix_isr_bundle(int irq, void *bank_ptr)
-{
-	struct adf_etr_bank_data *bank = bank_ptr;
-
-	WRITE_CSR_INT_FLAG_AND_COL(bank->csr_addr, bank->bank_number, 0);
-	tasklet_hi_schedule(&bank->resp_handler);
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t adf_msix_isr_ae(int irq, void *dev_ptr)
-{
-	struct adf_accel_dev *accel_dev = dev_ptr;
-
-#ifdef CONFIG_PCI_IOV
-	/* If SR-IOV is enabled (vf_info is non-NULL), check for VF->PF ints */
-	if (accel_dev->pf.vf_info) {
-		void __iomem *pmisc_bar_addr =
-		    (&GET_BARS(accel_dev)[ADF_DH895XCC_PMISC_BAR])->virt_addr;
-		u32 vf_mask;
-
-		/* Get the interrupt sources triggered by VFs */
-		vf_mask = ((ADF_CSR_RD(pmisc_bar_addr, ADF_DH895XCC_ERRSOU5) &
-			    0x0000FFFF) << 16) |
-			  ((ADF_CSR_RD(pmisc_bar_addr, ADF_DH895XCC_ERRSOU3) &
-			    0x01FFFE00) >> 9);
-
-		if (vf_mask) {
-			struct adf_accel_vf_info *vf_info;
-			bool irq_handled = false;
-			int i;
-
-			/* Disable VF2PF interrupts for VFs with pending ints */
-			adf_disable_vf2pf_interrupts(accel_dev, vf_mask);
-
-			/*
-			 * Schedule tasklets to handle VF2PF interrupt BHs
-			 * unless the VF is malicious and is attempting to
-			 * flood the host OS with VF2PF interrupts.
-			 */
-			for_each_set_bit(i, (const unsigned long *)&vf_mask,
-					 (sizeof(vf_mask) * BITS_PER_BYTE)) {
-				vf_info = accel_dev->pf.vf_info + i;
-
-				if (!__ratelimit(&vf_info->vf2pf_ratelimit)) {
-					dev_info(&GET_DEV(accel_dev),
-						 "Too many ints from VF%d\n",
-						  vf_info->vf_nr + 1);
-					continue;
-				}
-
-				/* Tasklet will re-enable ints from this VF */
-				tasklet_hi_schedule(&vf_info->vf2pf_bh_tasklet);
-				irq_handled = true;
-			}
-
-			if (irq_handled)
-				return IRQ_HANDLED;
-		}
-	}
-#endif /* CONFIG_PCI_IOV */
-
-	dev_dbg(&GET_DEV(accel_dev), "qat_dev%d spurious AE interrupt\n",
-		accel_dev->accel_id);
-
-	return IRQ_NONE;
-}
-
-static int adf_request_irqs(struct adf_accel_dev *accel_dev)
-{
-	struct adf_accel_pci *pci_dev_info = &accel_dev->accel_pci_dev;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	struct msix_entry *msixe = pci_dev_info->msix_entries.entries;
-	struct adf_etr_data *etr_data = accel_dev->transport;
-	int ret, i = 0;
-	char *name;
-
-	/* Request msix irq for all banks unless SR-IOV enabled */
-	if (!accel_dev->pf.vf_info) {
-		for (i = 0; i < hw_data->num_banks; i++) {
-			struct adf_etr_bank_data *bank = &etr_data->banks[i];
-			unsigned int cpu, cpus = num_online_cpus();
-
-			name = *(pci_dev_info->msix_entries.names + i);
-			snprintf(name, ADF_MAX_MSIX_VECTOR_NAME,
-				 "qat%d-bundle%d", accel_dev->accel_id, i);
-			ret = request_irq(msixe[i].vector,
-					  adf_msix_isr_bundle, 0, name, bank);
-			if (ret) {
-				dev_err(&GET_DEV(accel_dev),
-					"failed to enable irq %d for %s\n",
-					msixe[i].vector, name);
-				return ret;
-			}
-
-			cpu = ((accel_dev->accel_id * hw_data->num_banks) +
-			       i) % cpus;
-			irq_set_affinity_hint(msixe[i].vector,
-					      get_cpu_mask(cpu));
-		}
-	}
-
-	/* Request msix irq for AE */
-	name = *(pci_dev_info->msix_entries.names + i);
-	snprintf(name, ADF_MAX_MSIX_VECTOR_NAME,
-		 "qat%d-ae-cluster", accel_dev->accel_id);
-	ret = request_irq(msixe[i].vector, adf_msix_isr_ae, 0, name, accel_dev);
-	if (ret) {
-		dev_err(&GET_DEV(accel_dev),
-			"failed to enable irq %d, for %s\n",
-			msixe[i].vector, name);
-		return ret;
-	}
-	return ret;
-}
-
-static void adf_free_irqs(struct adf_accel_dev *accel_dev)
-{
-	struct adf_accel_pci *pci_dev_info = &accel_dev->accel_pci_dev;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	struct msix_entry *msixe = pci_dev_info->msix_entries.entries;
-	struct adf_etr_data *etr_data = accel_dev->transport;
-	int i = 0;
-
-	if (pci_dev_info->msix_entries.num_entries > 1) {
-		for (i = 0; i < hw_data->num_banks; i++) {
-			irq_set_affinity_hint(msixe[i].vector, NULL);
-			free_irq(msixe[i].vector, &etr_data->banks[i]);
-		}
-	}
-	irq_set_affinity_hint(msixe[i].vector, NULL);
-	free_irq(msixe[i].vector, accel_dev);
-}
-
-static int adf_isr_alloc_msix_entry_table(struct adf_accel_dev *accel_dev)
-{
-	int i;
-	char **names;
-	struct msix_entry *entries;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	u32 msix_num_entries = 1;
-
-	/* If SR-IOV is disabled (vf_info is NULL), add entries for each bank */
-	if (!accel_dev->pf.vf_info)
-		msix_num_entries += hw_data->num_banks;
-
-	entries = kzalloc_node(msix_num_entries * sizeof(*entries),
-			       GFP_KERNEL, dev_to_node(&GET_DEV(accel_dev)));
-	if (!entries)
-		return -ENOMEM;
-
-	names = kcalloc(msix_num_entries, sizeof(char *), GFP_KERNEL);
-	if (!names) {
-		kfree(entries);
-		return -ENOMEM;
-	}
-	for (i = 0; i < msix_num_entries; i++) {
-		*(names + i) = kzalloc(ADF_MAX_MSIX_VECTOR_NAME, GFP_KERNEL);
-		if (!(*(names + i)))
-			goto err;
-	}
-	accel_dev->accel_pci_dev.msix_entries.num_entries = msix_num_entries;
-	accel_dev->accel_pci_dev.msix_entries.entries = entries;
-	accel_dev->accel_pci_dev.msix_entries.names = names;
-	return 0;
-err:
-	for (i = 0; i < msix_num_entries; i++)
-		kfree(*(names + i));
-	kfree(entries);
-	kfree(names);
-	return -ENOMEM;
-}
-
-static void adf_isr_free_msix_entry_table(struct adf_accel_dev *accel_dev)
-{
-	char **names = accel_dev->accel_pci_dev.msix_entries.names;
-	int i;
-
-	kfree(accel_dev->accel_pci_dev.msix_entries.entries);
-	for (i = 0; i < accel_dev->accel_pci_dev.msix_entries.num_entries; i++)
-		kfree(*(names + i));
-	kfree(names);
-}
-
-static int adf_setup_bh(struct adf_accel_dev *accel_dev)
-{
-	struct adf_etr_data *priv_data = accel_dev->transport;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	int i;
-
-	for (i = 0; i < hw_data->num_banks; i++)
-		tasklet_init(&priv_data->banks[i].resp_handler,
-			     adf_response_handler,
-			     (unsigned long)&priv_data->banks[i]);
-	return 0;
-}
-
-static void adf_cleanup_bh(struct adf_accel_dev *accel_dev)
-{
-	struct adf_etr_data *priv_data = accel_dev->transport;
-	struct adf_hw_device_data *hw_data = accel_dev->hw_device;
-	int i;
-
-	for (i = 0; i < hw_data->num_banks; i++) {
-		tasklet_disable(&priv_data->banks[i].resp_handler);
-		tasklet_kill(&priv_data->banks[i].resp_handler);
-	}
-}
-
-void adf_isr_resource_free(struct adf_accel_dev *accel_dev)
-{
-	adf_free_irqs(accel_dev);
-	adf_cleanup_bh(accel_dev);
-	adf_disable_msix(&accel_dev->accel_pci_dev);
-	adf_isr_free_msix_entry_table(accel_dev);
-}
-
-int adf_isr_resource_alloc(struct adf_accel_dev *accel_dev)
-{
-	int ret;
-
-	ret = adf_isr_alloc_msix_entry_table(accel_dev);
-	if (ret)
-		return ret;
-	if (adf_enable_msix(accel_dev))
-		goto err_out;
-
-	if (adf_setup_bh(accel_dev))
-		goto err_out;
-
-	if (adf_request_irqs(accel_dev))
-		goto err_out;
-
-	return 0;
-err_out:
-	adf_isr_resource_free(accel_dev);
-	return -EFAULT;
-}