1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.h b/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
new file mode 100644
index 000000000000..60d1319fa44f
--- /dev/null
+++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.h
@@ -0,0 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2017 The Linux Foundation. All rights reserved. */
+
+#ifndef _A6XX_HFI_H_
+#define _A6XX_HFI_H_
+
+struct a6xx_hfi_queue_table_header {
+	u32 version;
+	u32 size;		/* Size of the queue table in dwords */
+	u32 qhdr0_offset;	/* Offset of the first queue header */
+	u32 qhdr_size;		/* Size of the queue headers */
+	u32 num_queues;		/* Number of total queues */
+	u32 active_queues;	/* Number of active queues */
+};
+
+struct a6xx_hfi_queue_header {
+	u32 status;
+	u32 iova;
+	u32 type;
+	u32 size;
+	u32 msg_size;
+	u32 dropped;
+	u32 rx_watermark;
+	u32 tx_watermark;
+	u32 rx_request;
+	u32 tx_request;
+	u32 read_index;
+	u32 write_index;
+};
+
+struct a6xx_hfi_queue {
+	struct a6xx_hfi_queue_header *header;
+	spinlock_t lock;
+	u32 *data;
+	atomic_t seqnum;
+};
+
+/* This is the outgoing queue to the GMU */
+#define HFI_COMMAND_QUEUE 0
+
+/* THis is the incoming response queue from the GMU */
+#define HFI_RESPONSE_QUEUE 1
+
+#define HFI_HEADER_ID(msg) ((msg) & 0xff)
+#define HFI_HEADER_SIZE(msg) (((msg) >> 8) & 0xff)
+#define HFI_HEADER_SEQNUM(msg) (((msg) >> 20) & 0xfff)
+
+/* FIXME: Do we need this or can we use ARRAY_SIZE? */
+#define HFI_RESPONSE_PAYLOAD_SIZE 16
+
+/* HFI message types */
+
+#define HFI_MSG_CMD 0
+#define HFI_MSG_ACK 2
+
+#define HFI_F2H_MSG_ACK 126
+
+struct a6xx_hfi_msg_response {
+	u32 header;
+	u32 ret_header;
+	u32 error;
+	u32 payload[HFI_RESPONSE_PAYLOAD_SIZE];
+};
+
+#define HFI_F2H_MSG_ERROR 100
+
+struct a6xx_hfi_msg_error {
+	u32 header;
+	u32 code;
+	u32 payload[2];
+};
+
+#define HFI_H2F_MSG_INIT 0
+
+struct a6xx_hfi_msg_gmu_init_cmd {
+	u32 header;
+	u32 seg_id;
+	u32 dbg_buffer_addr;
+	u32 dbg_buffer_size;
+	u32 boot_state;
+};
+
+#define HFI_H2F_MSG_FW_VERSION 1
+
+struct a6xx_hfi_msg_fw_version {
+	u32 header;
+	u32 supported_version;
+};
+
+#define HFI_H2F_MSG_PERF_TABLE 4
+
+struct perf_level {
+	u32 vote;
+	u32 freq;
+};
+
+struct a6xx_hfi_msg_perf_table {
+	u32 header;
+	u32 num_gpu_levels;
+	u32 num_gmu_levels;
+
+	struct perf_level gx_votes[16];
+	struct perf_level cx_votes[4];
+};
+
+#define HFI_H2F_MSG_BW_TABLE 3
+
+struct a6xx_hfi_msg_bw_table {
+	u32 header;
+	u32 bw_level_num;
+	u32 cnoc_cmds_num;
+	u32 ddr_cmds_num;
+	u32 cnoc_wait_bitmask;
+	u32 ddr_wait_bitmask;
+	u32 cnoc_cmds_addrs[6];
+	u32 cnoc_cmds_data[2][6];
+	u32 ddr_cmds_addrs[8];
+	u32 ddr_cmds_data[16][8];
+};
+
+#define HFI_H2F_MSG_TEST 5
+
+struct a6xx_hfi_msg_test {
+	u32 header;
+};
+
+#endif