arch/x86/include/asm/platform_sst_audio.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/platform_sst_audio.h

Extension

.h

Size

3101 bytes

Lines

137

Domain

Architecture Layer

Bucket

arch/x86

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

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

Detected Declarations

• struct sst_dev_stream_map
• struct sst_platform_data
• struct sst_info
• struct sst_lib_dnld_info
• struct sst_res_info
• struct sst_ipc_info
• struct sst_platform_info
• enum sst_audio_task_id_mrfld
• enum sst_audio_device_id_mrfld

Annotated Snippet

struct sst_dev_stream_map {
	u8 dev_num;		/* device id */
	u8 subdev_num;		/* substream */
	u8 direction;
	u8 device_id;		/* fw id */
	u8 task_id;		/* fw task */
	u8 status;
};

struct sst_platform_data {
	/* Intel software platform id*/
	struct sst_dev_stream_map *pdev_strm_map;
	unsigned int strm_map_size;
};

struct sst_info {
	u32 iram_start;
	u32 iram_end;
	bool iram_use;
	u32 dram_start;
	u32 dram_end;
	bool dram_use;
	u32 imr_start;
	u32 imr_end;
	bool imr_use;
	u32 mailbox_start;
	bool use_elf;
	bool lpe_viewpt_rqd;
	unsigned int max_streams;
	u32 dma_max_len;
	u8 num_probes;
};

struct sst_lib_dnld_info {
	unsigned int mod_base;
	unsigned int mod_end;
	unsigned int mod_table_offset;
	unsigned int mod_table_size;
	bool mod_ddr_dnld;
};

struct sst_res_info {
	unsigned int shim_offset;
	unsigned int shim_size;
	unsigned int shim_phy_addr;
	unsigned int ssp0_offset;
	unsigned int ssp0_size;
	unsigned int dma0_offset;
	unsigned int dma0_size;
	unsigned int dma1_offset;
	unsigned int dma1_size;
	unsigned int iram_offset;
	unsigned int iram_size;
	unsigned int dram_offset;
	unsigned int dram_size;
	unsigned int mbox_offset;
	unsigned int mbox_size;
	unsigned int acpi_lpe_res_index;
	unsigned int acpi_ddr_index;
	unsigned int acpi_ipc_irq_index;
};

struct sst_ipc_info {
	int ipc_offset;
	unsigned int mbox_recv_off;
};

struct sst_platform_info {
	const struct sst_info *probe_data;
	const struct sst_ipc_info *ipc_info;
	const struct sst_res_info *res_info;
	const struct sst_lib_dnld_info *lib_info;
	const char *platform;
	bool streams_lost_on_suspend;
};
int add_sst_platform_device(void);
#endif

Annotation

• Detected declarations: `struct sst_dev_stream_map`, `struct sst_platform_data`, `struct sst_info`, `struct sst_lib_dnld_info`, `struct sst_res_info`, `struct sst_ipc_info`, `struct sst_platform_info`, `enum sst_audio_task_id_mrfld`, `enum sst_audio_device_id_mrfld`.
• Atlas domain: Architecture Layer / arch/x86.
• Implementation status: source implementation candidate.

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.