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Date: Thu, 8 Apr 2021 18:22:34 +0300
From: Oded Gabbay <ogabbay@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Ohad Sharabi <osharabi@...ana.ai>
Subject: [PATCH 7/7] habanalabs: update to latest F/W communication header
From: Ohad Sharabi <osharabi@...ana.ai>
update files to latest version from F/W team.
Signed-off-by: Ohad Sharabi <osharabi@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
.../misc/habanalabs/include/common/cpucp_if.h | 3 +-
.../habanalabs/include/common/hl_boot_if.h | 198 ++++++++++++++++++
2 files changed, 200 insertions(+), 1 deletion(-)
diff --git a/drivers/misc/habanalabs/include/common/cpucp_if.h b/drivers/misc/habanalabs/include/common/cpucp_if.h
index 20a710f7a369..27cd0ba99aa3 100644
--- a/drivers/misc/habanalabs/include/common/cpucp_if.h
+++ b/drivers/misc/habanalabs/include/common/cpucp_if.h
@@ -11,6 +11,8 @@
#include <linux/types.h>
#include <linux/if_ether.h>
+#include "hl_boot_if.h"
+
#define NUM_HBM_PSEUDO_CH 2
#define NUM_HBM_CH_PER_DEV 8
#define CPUCP_PKT_HBM_ECC_INFO_WR_PAR_SHIFT 0
@@ -564,7 +566,6 @@ struct eq_generic_event {
*/
#define CARD_NAME_MAX_LEN 16
-#define VERSION_MAX_LEN 128
#define CPUCP_MAX_SENSORS 128
#define CPUCP_MAX_NICS 128
#define CPUCP_LANES_PER_NIC 4
diff --git a/drivers/misc/habanalabs/include/common/hl_boot_if.h b/drivers/misc/habanalabs/include/common/hl_boot_if.h
index 980b432fd76e..e0a259e0495c 100644
--- a/drivers/misc/habanalabs/include/common/hl_boot_if.h
+++ b/drivers/misc/habanalabs/include/common/hl_boot_if.h
@@ -13,6 +13,8 @@
#define BOOT_FIT_SRAM_OFFSET 0x200000
+#define VERSION_MAX_LEN 128
+
/*
* CPU error bits in BOOT_ERROR registers
*
@@ -251,6 +253,7 @@ enum kmd_msg {
KMD_MSG_SKIP_BMC,
RESERVED,
KMD_MSG_RST_DEV,
+ KMD_MSG_LAST
};
enum cpu_msg_status {
@@ -259,4 +262,199 @@ enum cpu_msg_status {
CPU_MSG_ERR,
};
+/* communication registers mapping - consider ABI when changing */
+struct cpu_dyn_regs {
+ uint32_t cpu_pq_base_addr_low;
+ uint32_t cpu_pq_base_addr_high;
+ uint32_t cpu_pq_length;
+ uint32_t cpu_pq_init_status;
+ uint32_t cpu_eq_base_addr_low;
+ uint32_t cpu_eq_base_addr_high;
+ uint32_t cpu_eq_length;
+ uint32_t cpu_eq_ci;
+ uint32_t cpu_cq_base_addr_low;
+ uint32_t cpu_cq_base_addr_high;
+ uint32_t cpu_cq_length;
+ uint32_t cpu_pf_pq_pi;
+ uint32_t cpu_boot_dev_sts0;
+ uint32_t cpu_boot_dev_sts1;
+ uint32_t cpu_boot_err0;
+ uint32_t cpu_boot_err1;
+ uint32_t cpu_boot_status;
+ uint32_t fw_upd_sts;
+ uint32_t fw_upd_cmd;
+ uint32_t fw_upd_pending_sts;
+ uint32_t fuse_ver_offset;
+ uint32_t preboot_ver_offset;
+ uint32_t uboot_ver_offset;
+ uint32_t hw_state;
+ uint32_t kmd_msg_to_cpu;
+ uint32_t cpu_cmd_status_to_host;
+ uint32_t reserved1[32]; /* reserve for future use */
+};
+
+/* HCDM - Habana Communications Descriptor Magic */
+#define HL_COMMS_DESC_MAGIC 0x4843444D
+#define HL_COMMS_DESC_VER 1
+
+/* this is the comms descriptor header - meta data */
+struct comms_desc_header {
+ uint32_t magic; /* magic for validation */
+ uint32_t crc32; /* CRC32 of the descriptor w/o header */
+ uint16_t size; /* size of the descriptor w/o header */
+ uint8_t version; /* descriptor version */
+ uint8_t reserved[5]; /* pad to 64 bit */
+};
+
+/* this is the main FW descriptor - consider ABI when changing */
+struct lkd_fw_comms_desc {
+ struct comms_desc_header header;
+ struct cpu_dyn_regs cpu_dyn_regs;
+ char fuse_ver[VERSION_MAX_LEN];
+ char cur_fw_ver[VERSION_MAX_LEN];
+ /* can be used for 1 more version w/o ABI change */
+ char reserved0[VERSION_MAX_LEN];
+ uint64_t img_addr; /* address for next FW component load */
+};
+
+/*
+ * LKD commands:
+ *
+ * COMMS_NOOP Used to clear the command register and no actual
+ * command is send.
+ *
+ * COMMS_CLR_STS Clear status command - FW should clear the
+ * status register. Used for synchronization
+ * between the commands as part of the race free
+ * protocol.
+ *
+ * COMMS_RST_STATE Reset the current communication state which is
+ * kept by FW for proper responses.
+ * Should be used in the beginning of the
+ * communication cycle to clean any leftovers from
+ * previous communication attempts.
+ *
+ * COMMS_PREP_DESC Prepare descriptor for setting up the
+ * communication and other dynamic data:
+ * struct lkd_fw_comms_desc.
+ * This command has a parameter stating the next FW
+ * component size, so the FW can actually prepare a
+ * space for it and in the status response provide
+ * the descriptor offset. The Offset of the next FW
+ * data component is a part of the descriptor
+ * structure.
+ *
+ * COMMS_DATA_RDY The FW data has been uploaded and is ready for
+ * validation.
+ *
+ * COMMS_EXEC Execute the next FW component.
+ *
+ * COMMS_RST_DEV Reset the device.
+ *
+ * COMMS_GOTO_WFE Execute WFE command. Allowed only on non-secure
+ * devices.
+ *
+ * COMMS_SKIP_BMC Perform actions required for BMC-less servers.
+ * Do not wait for BMC response.
+ *
+ * COMMS_LOW_PLL_OPP Initialize PLLs for low OPP.
+ */
+enum comms_cmd {
+ COMMS_NOOP = 0,
+ COMMS_CLR_STS = 1,
+ COMMS_RST_STATE = 2,
+ COMMS_PREP_DESC = 3,
+ COMMS_DATA_RDY = 4,
+ COMMS_EXEC = 5,
+ COMMS_RST_DEV = 6,
+ COMMS_GOTO_WFE = 7,
+ COMMS_SKIP_BMC = 8,
+ COMMS_LOW_PLL_OPP = 9,
+ COMMS_INVLD_LAST
+};
+
+#define COMMS_COMMAND_SIZE_SHIFT 0
+#define COMMS_COMMAND_SIZE_MASK 0x1FFFFFF
+#define COMMS_COMMAND_CMD_SHIFT 27
+#define COMMS_COMMAND_CMD_MASK 0xF8000000
+
+/*
+ * LKD command to FW register structure
+ * @size - FW component size
+ * @cmd - command from enum comms_cmd
+ */
+struct comms_command {
+ union { /* bit fields are only for FW use */
+ struct {
+ unsigned int size :25; /* 32MB max. */
+ unsigned int reserved :2;
+ enum comms_cmd cmd :5; /* 32 commands */
+ };
+ unsigned int val;
+ };
+};
+
+/*
+ * FW status
+ *
+ * COMMS_STS_NOOP Used to clear the status register and no actual
+ * status is provided.
+ *
+ * COMMS_STS_ACK Command has been received and recognized.
+ *
+ * COMMS_STS_OK Command execution has finished successfully.
+ *
+ * COMMS_STS_ERR Command execution was unsuccessful and resulted
+ * in error.
+ *
+ * COMMS_STS_VALID_ERR FW validation has failed.
+ *
+ * COMMS_STS_TIMEOUT_ERR Command execution has timed out.
+ */
+enum comms_sts {
+ COMMS_STS_NOOP = 0,
+ COMMS_STS_ACK = 1,
+ COMMS_STS_OK = 2,
+ COMMS_STS_ERR = 3,
+ COMMS_STS_VALID_ERR = 4,
+ COMMS_STS_TIMEOUT_ERR = 5,
+ COMMS_STS_INVLD_LAST
+};
+
+/* RAM types for FW components loading - defines the base address */
+enum comms_ram_types {
+ COMMS_SRAM = 0,
+ COMMS_DRAM = 1,
+};
+
+#define COMMS_STATUS_OFFSET_SHIFT 0
+#define COMMS_STATUS_OFFSET_MASK 0x03FFFFFF
+#define COMMS_STATUS_OFFSET_ALIGN_SHIFT 2
+#define COMMS_STATUS_RAM_TYPE_SHIFT 26
+#define COMMS_STATUS_RAM_TYPE_MASK 0x0C000000
+#define COMMS_STATUS_STATUS_SHIFT 28
+#define COMMS_STATUS_STATUS_MASK 0xF0000000
+
+/*
+ * FW status to LKD register structure
+ * @offset - an offset from the base of the ram_type shifted right by
+ * 2 bits (always aligned to 32 bits).
+ * Allows a maximum addressable offset of 256MB from RAM base.
+ * Example: for real offset in RAM of 0x800000 (8MB), the value
+ * in offset field is (0x800000 >> 2) = 0x200000.
+ * @ram_type - the RAM type that should be used for offset from
+ * enum comms_ram_types
+ * @status - status from enum comms_sts
+ */
+struct comms_status {
+ union { /* bit fields are only for FW use */
+ struct {
+ unsigned int offset :26;
+ unsigned int ram_type :2;
+ enum comms_sts status :4; /* 16 statuses */
+ };
+ unsigned int val;
+ };
+};
+
#endif /* HL_BOOT_IF_H */
--
2.25.1
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