drivers/media/platform/qcom/iris/iris_vpu_buffer.c

Source file repositories/reference/linux-study-clean/drivers/media/platform/qcom/iris/iris_vpu_buffer.c

File Facts

System
Linux kernel
Corpus path
drivers/media/platform/qcom/iris/iris_vpu_buffer.c
Extension
.c
Size
78502 bytes
Lines
2258
Domain
Driver Families
Bucket
drivers/media
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct iris_vpu_buf_type_handle {
	enum iris_buffer_type type;
	u32 (*handle)(struct iris_inst *inst);
};

u32 iris_vpu_buf_size(struct iris_inst *inst, enum iris_buffer_type buffer_type)
{
	const struct iris_vpu_buf_type_handle *buf_type_handle_arr = NULL;
	u32 size = 0, buf_type_handle_size = 0, i;

	static const struct iris_vpu_buf_type_handle dec_internal_buf_type_handle[] = {
		{BUF_BIN,         iris_vpu_dec_bin_size             },
		{BUF_COMV,        iris_vpu3x_4x_dec_comv_size       },
		{BUF_NON_COMV,    iris_vpu_dec_non_comv_size        },
		{BUF_LINE,        iris_vpu_dec_line_size            },
		{BUF_PERSIST,     iris_vpu_dec_persist_size         },
		{BUF_DPB,         iris_vpu_dec_dpb_size             },
		{BUF_SCRATCH_1,   iris_vpu_dec_scratch1_size        },
		{BUF_PARTIAL,     iris_vpu_dec_partial_size         },
	};

	static const struct iris_vpu_buf_type_handle enc_internal_buf_type_handle[] = {
		{BUF_BIN,         iris_vpu_enc_bin_size             },
		{BUF_COMV,        iris_vpu_enc_comv_size            },
		{BUF_NON_COMV,    iris_vpu_enc_non_comv_size        },
		{BUF_LINE,        iris_vpu_enc_line_size            },
		{BUF_ARP,         iris_vpu_enc_arp_size             },
		{BUF_VPSS,        iris_vpu_enc_vpss_size            },
		{BUF_SCRATCH_1,   iris_vpu_enc_scratch1_size        },
		{BUF_SCRATCH_2,   iris_vpu_enc_scratch2_size        },
	};

	if (inst->domain == DECODER) {
		buf_type_handle_size = ARRAY_SIZE(dec_internal_buf_type_handle);
		buf_type_handle_arr = dec_internal_buf_type_handle;
	} else if (inst->domain == ENCODER) {
		buf_type_handle_size = ARRAY_SIZE(enc_internal_buf_type_handle);
		buf_type_handle_arr = enc_internal_buf_type_handle;
	}

	for (i = 0; i < buf_type_handle_size; i++) {
		if (buf_type_handle_arr[i].type == buffer_type) {
			size = buf_type_handle_arr[i].handle(inst);
			break;
		}
	}

	return size;
}

u32 iris_vpu33_buf_size(struct iris_inst *inst, enum iris_buffer_type buffer_type)
{
	u32 size = 0, i;

	static const struct iris_vpu_buf_type_handle enc_internal_buf_type_handle[] = {
		{BUF_BIN,         iris_vpu_enc_bin_size         },
		{BUF_COMV,        iris_vpu_enc_comv_size        },
		{BUF_NON_COMV,    iris_vpu_enc_non_comv_size    },
		{BUF_LINE,        iris_vpu33_enc_line_size      },
		{BUF_ARP,         iris_vpu_enc_arp_size         },
		{BUF_VPSS,        iris_vpu_enc_vpss_size        },
		{BUF_SCRATCH_1,   iris_vpu_enc_scratch1_size    },
		{BUF_SCRATCH_2,   iris_vpu_enc_scratch2_size    },
	};

	if (inst->domain == DECODER)
		return iris_vpu_buf_size(inst, buffer_type);

	for (i = 0; i < ARRAY_SIZE(enc_internal_buf_type_handle); i++) {
		if (enc_internal_buf_type_handle[i].type == buffer_type) {
			size = enc_internal_buf_type_handle[i].handle(inst);
			break;
		}
	}

	return size;
}

u32 iris_vpu4x_buf_size(struct iris_inst *inst, enum iris_buffer_type buffer_type)
{
	const struct iris_vpu_buf_type_handle *buf_type_handle_arr = NULL;
	u32 size = 0, buf_type_handle_size = 0, i;

	static const struct iris_vpu_buf_type_handle dec_internal_buf_type_handle[] = {
		{BUF_BIN,         iris_vpu_dec_bin_size         },
		{BUF_COMV,        iris_vpu3x_4x_dec_comv_size   },
		{BUF_NON_COMV,    iris_vpu_dec_non_comv_size    },
		{BUF_LINE,        iris_vpu4x_dec_line_size      },
		{BUF_PERSIST,     iris_vpu4x_dec_persist_size   },
		{BUF_DPB,         iris_vpu_dec_dpb_size         },

Annotation

Implementation Notes