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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-30 03:35:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-30 03:35:39 +0000
commitddbb0c19fe8ea90e33ad47299c7edd6305d0eaea (patch)
treede36f79327a07773a125f713f423457a88104e56 /drivers/remoteproc
parentAdding debian version 6.8.9-1. (diff)
downloadlinux-ddbb0c19fe8ea90e33ad47299c7edd6305d0eaea.tar.xz
linux-ddbb0c19fe8ea90e33ad47299c7edd6305d0eaea.zip
Merging upstream version 6.8.11.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/mtk_scp.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index a35409eda0..67518291a8 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -132,7 +132,7 @@ static int scp_elf_read_ipi_buf_addr(struct mtk_scp *scp,
static int scp_ipi_init(struct mtk_scp *scp, const struct firmware *fw)
{
int ret;
- size_t offset;
+ size_t buf_sz, offset;
/* read the ipi buf addr from FW itself first */
ret = scp_elf_read_ipi_buf_addr(scp, fw, &offset);
@@ -144,6 +144,14 @@ static int scp_ipi_init(struct mtk_scp *scp, const struct firmware *fw)
}
dev_info(scp->dev, "IPI buf addr %#010zx\n", offset);
+ /* Make sure IPI buffer fits in the L2TCM range assigned to this core */
+ buf_sz = sizeof(*scp->recv_buf) + sizeof(*scp->send_buf);
+
+ if (scp->sram_size < buf_sz + offset) {
+ dev_err(scp->dev, "IPI buffer does not fit in SRAM.\n");
+ return -EOVERFLOW;
+ }
+
scp->recv_buf = (struct mtk_share_obj __iomem *)
(scp->sram_base + offset);
scp->send_buf = (struct mtk_share_obj __iomem *)