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-rw-r--r--drivers/dma/ioat/hw.h271
1 files changed, 271 insertions, 0 deletions
diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h
new file mode 100644
index 0000000000..79e4e4c09c
--- /dev/null
+++ b/drivers/dma/ioat/hw.h
@@ -0,0 +1,271 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright(c) 2004 - 2009 Intel Corporation. All rights reserved.
+ */
+#ifndef _IOAT_HW_H_
+#define _IOAT_HW_H_
+
+/* PCI Configuration Space Values */
+#define IOAT_MMIO_BAR 0
+
+/* CB device ID's */
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB0 0x0e20
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB1 0x0e21
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB2 0x0e22
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB3 0x0e23
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB4 0x0e24
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB5 0x0e25
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB6 0x0e26
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB7 0x0e27
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB8 0x0e2e
+#define PCI_DEVICE_ID_INTEL_IOAT_IVB9 0x0e2f
+
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW0 0x2f20
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW1 0x2f21
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW2 0x2f22
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW3 0x2f23
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW4 0x2f24
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW5 0x2f25
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW6 0x2f26
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW7 0x2f27
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW8 0x2f2e
+#define PCI_DEVICE_ID_INTEL_IOAT_HSW9 0x2f2f
+
+#define PCI_DEVICE_ID_INTEL_IOAT_BWD0 0x0C50
+#define PCI_DEVICE_ID_INTEL_IOAT_BWD1 0x0C51
+#define PCI_DEVICE_ID_INTEL_IOAT_BWD2 0x0C52
+#define PCI_DEVICE_ID_INTEL_IOAT_BWD3 0x0C53
+
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE0 0x6f50
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE1 0x6f51
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE2 0x6f52
+#define PCI_DEVICE_ID_INTEL_IOAT_BDXDE3 0x6f53
+
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX0 0x6f20
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX1 0x6f21
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX2 0x6f22
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX3 0x6f23
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX4 0x6f24
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX5 0x6f25
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX6 0x6f26
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX7 0x6f27
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX8 0x6f2e
+#define PCI_DEVICE_ID_INTEL_IOAT_BDX9 0x6f2f
+
+#define PCI_DEVICE_ID_INTEL_IOAT_SKX 0x2021
+
+#define PCI_DEVICE_ID_INTEL_IOAT_ICX 0x0b00
+
+#define IOAT_VER_1_2 0x12 /* Version 1.2 */
+#define IOAT_VER_2_0 0x20 /* Version 2.0 */
+#define IOAT_VER_3_0 0x30 /* Version 3.0 */
+#define IOAT_VER_3_2 0x32 /* Version 3.2 */
+#define IOAT_VER_3_3 0x33 /* Version 3.3 */
+#define IOAT_VER_3_4 0x34 /* Version 3.4 */
+
+
+int system_has_dca_enabled(struct pci_dev *pdev);
+
+#define IOAT_DESC_SZ 64
+
+struct ioat_dma_descriptor {
+ uint32_t size;
+ union {
+ uint32_t ctl;
+ struct {
+ unsigned int int_en:1;
+ unsigned int src_snoop_dis:1;
+ unsigned int dest_snoop_dis:1;
+ unsigned int compl_write:1;
+ unsigned int fence:1;
+ unsigned int null:1;
+ unsigned int src_brk:1;
+ unsigned int dest_brk:1;
+ unsigned int bundle:1;
+ unsigned int dest_dca:1;
+ unsigned int hint:1;
+ unsigned int rsvd2:13;
+ #define IOAT_OP_COPY 0x00
+ unsigned int op:8;
+ } ctl_f;
+ };
+ uint64_t src_addr;
+ uint64_t dst_addr;
+ uint64_t next;
+ uint64_t rsv1;
+ uint64_t rsv2;
+ /* store some driver data in an unused portion of the descriptor */
+ union {
+ uint64_t user1;
+ uint64_t tx_cnt;
+ };
+ uint64_t user2;
+};
+
+struct ioat_xor_descriptor {
+ uint32_t size;
+ union {
+ uint32_t ctl;
+ struct {
+ unsigned int int_en:1;
+ unsigned int src_snoop_dis:1;
+ unsigned int dest_snoop_dis:1;
+ unsigned int compl_write:1;
+ unsigned int fence:1;
+ unsigned int src_cnt:3;
+ unsigned int bundle:1;
+ unsigned int dest_dca:1;
+ unsigned int hint:1;
+ unsigned int rsvd:13;
+ #define IOAT_OP_XOR 0x87
+ #define IOAT_OP_XOR_VAL 0x88
+ unsigned int op:8;
+ } ctl_f;
+ };
+ uint64_t src_addr;
+ uint64_t dst_addr;
+ uint64_t next;
+ uint64_t src_addr2;
+ uint64_t src_addr3;
+ uint64_t src_addr4;
+ uint64_t src_addr5;
+};
+
+struct ioat_xor_ext_descriptor {
+ uint64_t src_addr6;
+ uint64_t src_addr7;
+ uint64_t src_addr8;
+ uint64_t next;
+ uint64_t rsvd[4];
+};
+
+struct ioat_pq_descriptor {
+ union {
+ uint32_t size;
+ uint32_t dwbes;
+ struct {
+ unsigned int rsvd:25;
+ unsigned int p_val_err:1;
+ unsigned int q_val_err:1;
+ unsigned int rsvd1:4;
+ unsigned int wbes:1;
+ } dwbes_f;
+ };
+ union {
+ uint32_t ctl;
+ struct {
+ unsigned int int_en:1;
+ unsigned int src_snoop_dis:1;
+ unsigned int dest_snoop_dis:1;
+ unsigned int compl_write:1;
+ unsigned int fence:1;
+ unsigned int src_cnt:3;
+ unsigned int bundle:1;
+ unsigned int dest_dca:1;
+ unsigned int hint:1;
+ unsigned int p_disable:1;
+ unsigned int q_disable:1;
+ unsigned int rsvd2:2;
+ unsigned int wb_en:1;
+ unsigned int prl_en:1;
+ unsigned int rsvd3:7;
+ #define IOAT_OP_PQ 0x89
+ #define IOAT_OP_PQ_VAL 0x8a
+ #define IOAT_OP_PQ_16S 0xa0
+ #define IOAT_OP_PQ_VAL_16S 0xa1
+ unsigned int op:8;
+ } ctl_f;
+ };
+ uint64_t src_addr;
+ uint64_t p_addr;
+ uint64_t next;
+ uint64_t src_addr2;
+ union {
+ uint64_t src_addr3;
+ uint64_t sed_addr;
+ };
+ uint8_t coef[8];
+ uint64_t q_addr;
+};
+
+struct ioat_pq_ext_descriptor {
+ uint64_t src_addr4;
+ uint64_t src_addr5;
+ uint64_t src_addr6;
+ uint64_t next;
+ uint64_t src_addr7;
+ uint64_t src_addr8;
+ uint64_t rsvd[2];
+};
+
+struct ioat_pq_update_descriptor {
+ uint32_t size;
+ union {
+ uint32_t ctl;
+ struct {
+ unsigned int int_en:1;
+ unsigned int src_snoop_dis:1;
+ unsigned int dest_snoop_dis:1;
+ unsigned int compl_write:1;
+ unsigned int fence:1;
+ unsigned int src_cnt:3;
+ unsigned int bundle:1;
+ unsigned int dest_dca:1;
+ unsigned int hint:1;
+ unsigned int p_disable:1;
+ unsigned int q_disable:1;
+ unsigned int rsvd:3;
+ unsigned int coef:8;
+ #define IOAT_OP_PQ_UP 0x8b
+ unsigned int op:8;
+ } ctl_f;
+ };
+ uint64_t src_addr;
+ uint64_t p_addr;
+ uint64_t next;
+ uint64_t src_addr2;
+ uint64_t p_src;
+ uint64_t q_src;
+ uint64_t q_addr;
+};
+
+struct ioat_raw_descriptor {
+ uint64_t field[8];
+};
+
+struct ioat_pq16a_descriptor {
+ uint8_t coef[8];
+ uint64_t src_addr3;
+ uint64_t src_addr4;
+ uint64_t src_addr5;
+ uint64_t src_addr6;
+ uint64_t src_addr7;
+ uint64_t src_addr8;
+ uint64_t src_addr9;
+};
+
+struct ioat_pq16b_descriptor {
+ uint64_t src_addr10;
+ uint64_t src_addr11;
+ uint64_t src_addr12;
+ uint64_t src_addr13;
+ uint64_t src_addr14;
+ uint64_t src_addr15;
+ uint64_t src_addr16;
+ uint64_t rsvd;
+};
+
+union ioat_sed_pq_descriptor {
+ struct ioat_pq16a_descriptor a;
+ struct ioat_pq16b_descriptor b;
+};
+
+#define SED_SIZE 64
+
+struct ioat_sed_raw_descriptor {
+ uint64_t a[8];
+ uint64_t b[8];
+ uint64_t c[8];
+};
+
+#endif