[PATCH v1 07/15] remoteproc: mediatek: Add SCP core 1 reserved memory support
From: Tinghan Shen <hidden>
Date: 2022-06-01 11:23:03
Also in:
chrome-platform, linux-devicetree, linux-mediatek, linux-remoteproc, lkml
Subsystem:
remote processor (remoteproc) subsystem, the rest · Maintainers:
Bjorn Andersson, Mathieu Poirier, Linus Torvalds
Reuse the SCP core 0 reserved memory API on SCP core 1. Signed-off-by: Tinghan Shen <redacted> --- drivers/remoteproc/mtk_common.h | 2 ++ drivers/remoteproc/mtk_scp.c | 6 ++++-- drivers/remoteproc/mtk_scp_dual.c | 5 +++++ 3 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/remoteproc/mtk_common.h b/drivers/remoteproc/mtk_common.h
index 2e46be605687..da3ea2243678 100644
--- a/drivers/remoteproc/mtk_common.h
+++ b/drivers/remoteproc/mtk_common.h@@ -168,4 +168,6 @@ int scp_stop(struct rproc *rproc); int scp_load(struct rproc *rproc, const struct firmware *fw); void *scp_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem); int scp_parse_fw(struct rproc *rproc, const struct firmware *fw); +int scp_map_memory_region(struct mtk_scp *scp); +void scp_unmap_memory_region(struct mtk_scp *scp); #endif
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 7b9d12ec2d4f..75d161da0f59 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c@@ -747,7 +747,7 @@ void *scp_mapping_dm_addr(struct mtk_scp *scp, u32 mem_addr) } EXPORT_SYMBOL_GPL(scp_mapping_dm_addr); -static int scp_map_memory_region(struct mtk_scp *scp) +int scp_map_memory_region(struct mtk_scp *scp) { int ret;
@@ -773,8 +773,9 @@ static int scp_map_memory_region(struct mtk_scp *scp) return 0; } +EXPORT_SYMBOL_GPL(scp_map_memory_region); -static void scp_unmap_memory_region(struct mtk_scp *scp) +void scp_unmap_memory_region(struct mtk_scp *scp) { if (scp->dram_size == 0) return;
@@ -783,6 +784,7 @@ static void scp_unmap_memory_region(struct mtk_scp *scp) scp->dma_addr); of_reserved_mem_device_release(scp->dev); } +EXPORT_SYMBOL_GPL(scp_unmap_memory_region); static int scp_register_ipi(struct platform_device *pdev, u32 id, ipi_handler_t handler, void *priv)
diff --git a/drivers/remoteproc/mtk_scp_dual.c b/drivers/remoteproc/mtk_scp_dual.c
index e4ada5696bd7..0f932d26f864 100644
--- a/drivers/remoteproc/mtk_scp_dual.c
+++ b/drivers/remoteproc/mtk_scp_dual.c@@ -60,6 +60,10 @@ static int scp_dual_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(scp->reg_base), "Failed to parse and map cfg memory\n"); + ret = scp_map_memory_region(scp); + if (ret) + return ret; + mutex_init(&scp->send_lock); for (i = 0; i < SCP_IPI_MAX; i++) mutex_init(&scp->ipi_desc[i].lock);
@@ -75,6 +79,7 @@ static int scp_dual_remove(struct platform_device *pdev) struct mtk_scp *scp = platform_get_drvdata(pdev); int i; + scp_unmap_memory_region(scp); for (i = 0; i < SCP_IPI_MAX; i++) mutex_destroy(&scp->ipi_desc[i].lock); mutex_destroy(&scp->send_lock);
--
2.18.0
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