dma_tt_grendel_smc.c File Reference

#include <zephyr/device.h>
#include <zephyr/drivers/dma.h>
#include <zephyr/kernel.h>
#include <zephyr/logging/log.h>
#include <zephyr/sys/sys_io.h>
#include <platform.h>

Include dependency graph for dma_tt_grendel_smc.c:

Data Structures
struct	dma_grendel_channel_data
struct	dma_grendel_config
struct	dma_grendel_data

Macros
#define	DT_DRV_COMPAT   tenstorrent_grendel_smc_dma
#define	DMA_REG_STATUS(ch)
#define	DMA_REG_NEXT_ID(ch)
#define	DMA_REG_DONE(ch)
#define	DMA_READ(reg)
#define	DMA_READ_CH(reg, ch)
#define	DMA_WRITE(reg, val)
#define	DMA_GRENDEL_INIT(inst)

Functions
	LOG_MODULE_REGISTER (dma_tt_grendel_smc)
static uint32_t	dma_transfer (const struct dma_grendel_config *cfg, uint32_t channel, const struct dma_block_config *block)
static int	dma_grendel_config (const struct device *dev, uint32_t channel, struct dma_config *config)
static int	dma_grendel_start (const struct device *dev, uint32_t channel)
static int	dma_grendel_stop (const struct device *dev, uint32_t channel)
static int	dma_grendel_get_status (const struct device *dev, uint32_t channel, struct dma_status *status)
static int	dma_grendel_init (const struct device *dev)

Variables
static const struct dma_driver_api	dma_grendel_api

Macro Definition Documentation

DMA_GRENDEL_INIT

#define DMA_GRENDEL_INIT

(

inst

)

Value:

        static struct dma_grendel_channel_data                                                     \
                dma_grendel_channels_##inst[DT_INST_PROP(inst, dma_channels)];                     \
                                                                                                   \
        static const struct dma_grendel_config dma_grendel_config_##inst = {                       \
                .base = DT_INST_REG_ADDR(inst),                                                    \
                .channels = dma_grendel_channels_##inst,                                           \
                .num_channels = DT_INST_PROP(inst, dma_channels),                                  \
        };                                                                                         \
                                                                                                   \
        static struct dma_grendel_data dma_grendel_data_##inst = {};                               \
                                                                                                   \
        DEVICE_DT_INST_DEFINE(inst, &dma_grendel_init, NULL, &dma_grendel_data_##inst,             \
                              &dma_grendel_config_##inst, POST_KERNEL, CONFIG_DMA_INIT_PRIORITY,   \
                              &dma_grendel_api);

DMA_READ

#define DMA_READ

(

reg

)

Value:

sys_read32(cfg->base + SMC_CPU_AXI_DATA_ACCEL_AXI_DMA_CTRL_##reg##_REG_OFFSET)

DMA_READ_CH

#define DMA_READ_CH	(		reg,
			ch )

Value:

sys_read32(cfg->base + DMA_REG_##reg(ch))

DMA_REG_DONE

#define DMA_REG_DONE

(

ch

)

Value:

(SMC_CPU_AXI_DATA_ACCEL_AXI_DMA_CTRL_DONE_0_REG_OFFSET + (ch) * 0x4)

DMA_REG_NEXT_ID

#define DMA_REG_NEXT_ID

(

ch

)

Value:

(SMC_CPU_AXI_DATA_ACCEL_AXI_DMA_CTRL_NEXT_ID_0_REG_OFFSET + (ch) * 0x8)

DMA_REG_STATUS

#define DMA_REG_STATUS

(

ch

)

Value:

(SMC_CPU_AXI_DATA_ACCEL_AXI_DMA_CTRL_STATUS_0_REG_OFFSET + (ch) * 0x4)

DMA_WRITE

#define DMA_WRITE	(		reg,
			val )

Value:

        sys_write32((val), cfg->base + SMC_CPU_AXI_DATA_ACCEL_AXI_DMA_CTRL_##reg##_REG_OFFSET)

DT_DRV_COMPAT

#define DT_DRV_COMPAT   tenstorrent_grendel_smc_dma

Function Documentation

dma_grendel_config()

int dma_grendel_config ( const struct device * dev, uint32_t channel, struct dma_config * config )

static

dma_grendel_get_status()

int dma_grendel_get_status ( const struct device * dev, uint32_t channel, struct dma_status * status )

static

dma_grendel_init()

int dma_grendel_init ( const struct device * dev )

static

dma_grendel_start()

int dma_grendel_start ( const struct device * dev, uint32_t channel )

static

dma_grendel_stop()

int dma_grendel_stop ( const struct device * dev, uint32_t channel )

static

dma_transfer()

uint32_t dma_transfer ( const struct dma_grendel_config * cfg, uint32_t channel, const struct dma_block_config * block )

static

LOG_MODULE_REGISTER()

LOG_MODULE_REGISTER

(

dma_tt_grendel_smc

)

Variable Documentation

dma_grendel_api

const struct dma_driver_api dma_grendel_api

static

Initial value:

= {
        .config = dma_grendel_config,
        .reload = NULL,
        .start = dma_grendel_start,
        .stop = dma_grendel_stop,
        .suspend = NULL,
        .resume = NULL,
        .get_status = dma_grendel_get_status,
        .get_attribute = NULL,
        .chan_filter = NULL,
        .chan_release = NULL,
}