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Commit 8358e76c authored by Philipp Zabel's avatar Philipp Zabel Committed by Mauro Carvalho Chehab
Browse files

[media] coda: dynamic IRAM setup for decoder 



This sets up IRAM areas used as temporary memory for the different
hardware units depending on the frame size.

Signed-off-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarKamil Debski <k.debski@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent b43ea806

drivers/media/platform/coda.c

+48 −2
Original line number Diff line number Diff line
@@ -1221,6 +1221,7 @@ static void coda_setup_iram(struct coda_ctx *ctx) 
	int ipacdc_size;

	int bitram_size;

	int dbk_size;

	int ovl_size;

	int mb_width;

	int me_size;

	int size;
@@ -1282,7 +1283,47 @@ static void coda_setup_iram(struct coda_ctx *ctx) 
			size -= ipacdc_size;

		}



		/* OVL disabled for encoder */

		/* OVL and BTP disabled for encoder */

	} else if (ctx->inst_type == CODA_INST_DECODER) {

		struct coda_q_data *q_data_dst;

		int mb_height;



		q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE);

		mb_width = DIV_ROUND_UP(q_data_dst->width, 16);

		mb_height = DIV_ROUND_UP(q_data_dst->height, 16);



		dbk_size = round_up(256 * mb_width, 1024);

		if (size >= dbk_size) {

			iram_info->axi_sram_use |= CODA7_USE_HOST_DBK_ENABLE;

			iram_info->buf_dbk_y_use = dev->iram_paddr;

			iram_info->buf_dbk_c_use = dev->iram_paddr +

						   dbk_size / 2;

			size -= dbk_size;

		} else {

			goto out;

		}



		bitram_size = round_up(128 * mb_width, 1024);

		if (size >= bitram_size) {

			iram_info->axi_sram_use |= CODA7_USE_HOST_BIT_ENABLE;

			iram_info->buf_bit_use = iram_info->buf_dbk_c_use +

						 dbk_size / 2;

			size -= bitram_size;

		} else {

			goto out;

		}



		ipacdc_size = round_up(128 * mb_width, 1024);

		if (size >= ipacdc_size) {

			iram_info->axi_sram_use |= CODA7_USE_HOST_IP_ENABLE;

			iram_info->buf_ip_ac_dc_use = iram_info->buf_bit_use +

						      bitram_size;

			size -= ipacdc_size;

		} else {

			goto out;

		}



		ovl_size = round_up(80 * mb_width, 1024);

	}



out:
@@ -1309,7 +1350,12 @@ static void coda_setup_iram(struct coda_ctx *ctx) 


	if (dev->devtype->product == CODA_7541) {

		/* TODO - Enabling these causes picture errors on CODA7541 */

		if (ctx->inst_type == CODA_INST_ENCODER) {

		if (ctx->inst_type == CODA_INST_DECODER) {

			/* fw 1.4.50 */

			iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |

						     CODA7_USE_IP_ENABLE);

		} else {

			/* fw 13.4.29 */

			iram_info->axi_sram_use &= ~(CODA7_USE_HOST_IP_ENABLE |

						     CODA7_USE_HOST_DBK_ENABLE |

						     CODA7_USE_IP_ENABLE |