cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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mtk_vcodec_fw_scp.c (1891B)

      1// SPDX-License-Identifier: GPL-2.0
      2
      3#include "mtk_vcodec_fw_priv.h"
      4#include "mtk_vcodec_util.h"
      5#include "mtk_vcodec_drv.h"
      6
      7static int mtk_vcodec_scp_load_firmware(struct mtk_vcodec_fw *fw)
      8{
      9	return rproc_boot(scp_get_rproc(fw->scp));
     10}
     11
     12static unsigned int mtk_vcodec_scp_get_vdec_capa(struct mtk_vcodec_fw *fw)
     13{
     14	return scp_get_vdec_hw_capa(fw->scp);
     15}
     16
     17static unsigned int mtk_vcodec_scp_get_venc_capa(struct mtk_vcodec_fw *fw)
     18{
     19	return scp_get_venc_hw_capa(fw->scp);
     20}
     21
     22static void *mtk_vcodec_vpu_scp_dm_addr(struct mtk_vcodec_fw *fw,
     23					u32 dtcm_dmem_addr)
     24{
     25	return scp_mapping_dm_addr(fw->scp, dtcm_dmem_addr);
     26}
     27
     28static int mtk_vcodec_scp_set_ipi_register(struct mtk_vcodec_fw *fw, int id,
     29					   mtk_vcodec_ipi_handler handler,
     30					   const char *name, void *priv)
     31{
     32	return scp_ipi_register(fw->scp, id, handler, priv);
     33}
     34
     35static int mtk_vcodec_scp_ipi_send(struct mtk_vcodec_fw *fw, int id, void *buf,
     36				   unsigned int len, unsigned int wait)
     37{
     38	return scp_ipi_send(fw->scp, id, buf, len, wait);
     39}
     40
     41static void mtk_vcodec_scp_release(struct mtk_vcodec_fw *fw)
     42{
     43	scp_put(fw->scp);
     44}
     45
     46static const struct mtk_vcodec_fw_ops mtk_vcodec_rproc_msg = {
     47	.load_firmware = mtk_vcodec_scp_load_firmware,
     48	.get_vdec_capa = mtk_vcodec_scp_get_vdec_capa,
     49	.get_venc_capa = mtk_vcodec_scp_get_venc_capa,
     50	.map_dm_addr = mtk_vcodec_vpu_scp_dm_addr,
     51	.ipi_register = mtk_vcodec_scp_set_ipi_register,
     52	.ipi_send = mtk_vcodec_scp_ipi_send,
     53	.release = mtk_vcodec_scp_release,
     54};
     55
     56struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(struct mtk_vcodec_dev *dev)
     57{
     58	struct mtk_vcodec_fw *fw;
     59	struct mtk_scp *scp;
     60
     61	scp = scp_get(dev->plat_dev);
     62	if (!scp) {
     63		mtk_v4l2_err("could not get vdec scp handle");
     64		return ERR_PTR(-EPROBE_DEFER);
     65	}
     66
     67	fw = devm_kzalloc(&dev->plat_dev->dev, sizeof(*fw), GFP_KERNEL);
     68	fw->type = SCP;
     69	fw->ops = &mtk_vcodec_rproc_msg;
     70	fw->scp = scp;
     71
     72	return fw;
     73}