hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[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: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Philipp Zabel 2013-06-21 03:55:32 -03:00 committed by Mauro Carvalho Chehab
parent b43ea8068d
commit 8358e76c14
1 changed files with 48 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/media/platform/coda.c
View File

@ -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 @@ out:
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 |