drivers/gpu/drm/amd/amdgpu/tonga_sdma_pkt_open.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/amdgpu/tonga_sdma_pkt_open.h

Extension

.h

Size

123573 bytes

Lines

2246

Domain

Driver Families

Bucket

drivers/gpu

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __TONGA_SDMA_PKT_OPEN_H_
#define __TONGA_SDMA_PKT_OPEN_H_

#define SDMA_OP_NOP  0
#define SDMA_OP_COPY  1
#define SDMA_OP_WRITE  2
#define SDMA_OP_INDIRECT  4
#define SDMA_OP_FENCE  5
#define SDMA_OP_TRAP  6
#define SDMA_OP_SEM  7
#define SDMA_OP_POLL_REGMEM  8
#define SDMA_OP_COND_EXE  9
#define SDMA_OP_ATOMIC  10
#define SDMA_OP_CONST_FILL  11
#define SDMA_OP_GEN_PTEPDE  12
#define SDMA_OP_TIMESTAMP  13
#define SDMA_OP_SRBM_WRITE  14
#define SDMA_OP_PRE_EXE  15
#define SDMA_SUBOP_TIMESTAMP_SET  0
#define SDMA_SUBOP_TIMESTAMP_GET  1
#define SDMA_SUBOP_TIMESTAMP_GET_GLOBAL  2
#define SDMA_SUBOP_COPY_LINEAR  0
#define SDMA_SUBOP_COPY_LINEAR_SUB_WIND  4
#define SDMA_SUBOP_COPY_TILED  1
#define SDMA_SUBOP_COPY_TILED_SUB_WIND  5
#define SDMA_SUBOP_COPY_T2T_SUB_WIND  6
#define SDMA_SUBOP_COPY_SOA  3
#define SDMA_SUBOP_WRITE_LINEAR  0
#define SDMA_SUBOP_WRITE_TILED  1

/*define for op field*/
#define SDMA_PKT_HEADER_op_offset 0
#define SDMA_PKT_HEADER_op_mask   0x000000FF
#define SDMA_PKT_HEADER_op_shift  0
#define SDMA_PKT_HEADER_OP(x) (((x) & SDMA_PKT_HEADER_op_mask) << SDMA_PKT_HEADER_op_shift)

/*define for sub_op field*/
#define SDMA_PKT_HEADER_sub_op_offset 0
#define SDMA_PKT_HEADER_sub_op_mask   0x000000FF
#define SDMA_PKT_HEADER_sub_op_shift  8
#define SDMA_PKT_HEADER_SUB_OP(x) (((x) & SDMA_PKT_HEADER_sub_op_mask) << SDMA_PKT_HEADER_sub_op_shift)

/*
** Definitions for SDMA_PKT_COPY_LINEAR packet
*/

/*define for HEADER word*/
/*define for op field*/
#define SDMA_PKT_COPY_LINEAR_HEADER_op_offset 0
#define SDMA_PKT_COPY_LINEAR_HEADER_op_mask   0x000000FF
#define SDMA_PKT_COPY_LINEAR_HEADER_op_shift  0
#define SDMA_PKT_COPY_LINEAR_HEADER_OP(x) (((x) & SDMA_PKT_COPY_LINEAR_HEADER_op_mask) << SDMA_PKT_COPY_LINEAR_HEADER_op_shift)

/*define for sub_op field*/
#define SDMA_PKT_COPY_LINEAR_HEADER_sub_op_offset 0
#define SDMA_PKT_COPY_LINEAR_HEADER_sub_op_mask   0x000000FF
#define SDMA_PKT_COPY_LINEAR_HEADER_sub_op_shift  8
#define SDMA_PKT_COPY_LINEAR_HEADER_SUB_OP(x) (((x) & SDMA_PKT_COPY_LINEAR_HEADER_sub_op_mask) << SDMA_PKT_COPY_LINEAR_HEADER_sub_op_shift)

/*define for broadcast field*/
#define SDMA_PKT_COPY_LINEAR_HEADER_broadcast_offset 0
#define SDMA_PKT_COPY_LINEAR_HEADER_broadcast_mask   0x00000001
#define SDMA_PKT_COPY_LINEAR_HEADER_broadcast_shift  27
#define SDMA_PKT_COPY_LINEAR_HEADER_BROADCAST(x) (((x) & SDMA_PKT_COPY_LINEAR_HEADER_broadcast_mask) << SDMA_PKT_COPY_LINEAR_HEADER_broadcast_shift)

/*define for COUNT word*/
/*define for count field*/
#define SDMA_PKT_COPY_LINEAR_COUNT_count_offset 1
#define SDMA_PKT_COPY_LINEAR_COUNT_count_mask   0x003FFFFF
#define SDMA_PKT_COPY_LINEAR_COUNT_count_shift  0
#define SDMA_PKT_COPY_LINEAR_COUNT_COUNT(x) (((x) & SDMA_PKT_COPY_LINEAR_COUNT_count_mask) << SDMA_PKT_COPY_LINEAR_COUNT_count_shift)

/*define for PARAMETER word*/
/*define for dst_sw field*/
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_sw_offset 2
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_sw_mask   0x00000003
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_sw_shift  16
#define SDMA_PKT_COPY_LINEAR_PARAMETER_DST_SW(x) (((x) & SDMA_PKT_COPY_LINEAR_PARAMETER_dst_sw_mask) << SDMA_PKT_COPY_LINEAR_PARAMETER_dst_sw_shift)

/*define for dst_ha field*/
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_ha_offset 2
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_ha_mask   0x00000001
#define SDMA_PKT_COPY_LINEAR_PARAMETER_dst_ha_shift  22
#define SDMA_PKT_COPY_LINEAR_PARAMETER_DST_HA(x) (((x) & SDMA_PKT_COPY_LINEAR_PARAMETER_dst_ha_mask) << SDMA_PKT_COPY_LINEAR_PARAMETER_dst_ha_shift)

/*define for src_sw field*/
#define SDMA_PKT_COPY_LINEAR_PARAMETER_src_sw_offset 2
#define SDMA_PKT_COPY_LINEAR_PARAMETER_src_sw_mask   0x00000003
#define SDMA_PKT_COPY_LINEAR_PARAMETER_src_sw_shift  24
#define SDMA_PKT_COPY_LINEAR_PARAMETER_SRC_SW(x) (((x) & SDMA_PKT_COPY_LINEAR_PARAMETER_src_sw_mask) << SDMA_PKT_COPY_LINEAR_PARAMETER_src_sw_shift)

Annotation

• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.