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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/crypto/qat/qat_common/adf_hw_arbiter.c
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/crypto/qat/qat_common/adf_hw_arbiter.c')
-rw-r--r--drivers/crypto/qat/qat_common/adf_hw_arbiter.c143
1 files changed, 143 insertions, 0 deletions
diff --git a/drivers/crypto/qat/qat_common/adf_hw_arbiter.c b/drivers/crypto/qat/qat_common/adf_hw_arbiter.c
new file mode 100644
index 000000000..d7dd18d9b
--- /dev/null
+++ b/drivers/crypto/qat/qat_common/adf_hw_arbiter.c
@@ -0,0 +1,143 @@
+/*
+ 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 "adf_accel_devices.h"
+#include "adf_common_drv.h"
+#include "adf_transport_internal.h"
+
+#define ADF_ARB_NUM 4
+#define ADF_ARB_REG_SIZE 0x4
+#define ADF_ARB_WTR_SIZE 0x20
+#define ADF_ARB_OFFSET 0x30000
+#define ADF_ARB_REG_SLOT 0x1000
+#define ADF_ARB_WTR_OFFSET 0x010
+#define ADF_ARB_RO_EN_OFFSET 0x090
+#define ADF_ARB_WQCFG_OFFSET 0x100
+#define ADF_ARB_WRK_2_SER_MAP_OFFSET 0x180
+#define ADF_ARB_RINGSRVARBEN_OFFSET 0x19C
+
+#define WRITE_CSR_ARB_RINGSRVARBEN(csr_addr, index, value) \
+ ADF_CSR_WR(csr_addr, ADF_ARB_RINGSRVARBEN_OFFSET + \
+ (ADF_ARB_REG_SLOT * index), value)
+
+#define WRITE_CSR_ARB_SARCONFIG(csr_addr, index, value) \
+ ADF_CSR_WR(csr_addr, ADF_ARB_OFFSET + \
+ (ADF_ARB_REG_SIZE * index), value)
+
+#define WRITE_CSR_ARB_WRK_2_SER_MAP(csr_addr, index, value) \
+ ADF_CSR_WR(csr_addr, (ADF_ARB_OFFSET + \
+ ADF_ARB_WRK_2_SER_MAP_OFFSET) + \
+ (ADF_ARB_REG_SIZE * index), value)
+
+#define WRITE_CSR_ARB_WQCFG(csr_addr, index, value) \
+ ADF_CSR_WR(csr_addr, (ADF_ARB_OFFSET + \
+ ADF_ARB_WQCFG_OFFSET) + (ADF_ARB_REG_SIZE * index), value)
+
+int adf_init_arb(struct adf_accel_dev *accel_dev)
+{
+ struct adf_hw_device_data *hw_data = accel_dev->hw_device;
+ void __iomem *csr = accel_dev->transport->banks[0].csr_addr;
+ u32 arb_cfg = 0x1 << 31 | 0x4 << 4 | 0x1;
+ u32 arb, i;
+ const u32 *thd_2_arb_cfg;
+
+ /* Service arb configured for 32 bytes responses and
+ * ring flow control check enabled. */
+ for (arb = 0; arb < ADF_ARB_NUM; arb++)
+ WRITE_CSR_ARB_SARCONFIG(csr, arb, arb_cfg);
+
+ /* Setup worker queue registers */
+ for (i = 0; i < hw_data->num_engines; i++)
+ WRITE_CSR_ARB_WQCFG(csr, i, i);
+
+ /* Map worker threads to service arbiters */
+ hw_data->get_arb_mapping(accel_dev, &thd_2_arb_cfg);
+
+ if (!thd_2_arb_cfg)
+ return -EFAULT;
+
+ for (i = 0; i < hw_data->num_engines; i++)
+ WRITE_CSR_ARB_WRK_2_SER_MAP(csr, i, *(thd_2_arb_cfg + i));
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(adf_init_arb);
+
+void adf_update_ring_arb(struct adf_etr_ring_data *ring)
+{
+ WRITE_CSR_ARB_RINGSRVARBEN(ring->bank->csr_addr,
+ ring->bank->bank_number,
+ ring->bank->ring_mask & 0xFF);
+}
+
+void adf_exit_arb(struct adf_accel_dev *accel_dev)
+{
+ struct adf_hw_device_data *hw_data = accel_dev->hw_device;
+ void __iomem *csr;
+ unsigned int i;
+
+ if (!accel_dev->transport)
+ return;
+
+ csr = accel_dev->transport->banks[0].csr_addr;
+
+ /* Reset arbiter configuration */
+ for (i = 0; i < ADF_ARB_NUM; i++)
+ WRITE_CSR_ARB_SARCONFIG(csr, i, 0);
+
+ /* Shutdown work queue */
+ for (i = 0; i < hw_data->num_engines; i++)
+ WRITE_CSR_ARB_WQCFG(csr, i, 0);
+
+ /* Unmap worker threads to service arbiters */
+ for (i = 0; i < hw_data->num_engines; i++)
+ WRITE_CSR_ARB_WRK_2_SER_MAP(csr, i, 0);
+
+ /* Disable arbitration on all rings */
+ for (i = 0; i < GET_MAX_BANKS(accel_dev); i++)
+ WRITE_CSR_ARB_RINGSRVARBEN(csr, i, 0);
+}
+EXPORT_SYMBOL_GPL(adf_exit_arb);