From: Dong Aisheng aisheng.dong@nxp.com
[ Upstream commit 91bb26637353f35241f5472eedf3202ebe13e2e5 ]
is_iomem was introduced in the commit 40df0a91b2a5 ("remoteproc: add is_iomem to da_to_va"), but the driver seemed missed to provide the io type correctly. This patch updates remoteproc driver to indicate the TCM on IMX are io memories. Without the change, remoteproc kick will fail.
Cc: Bjorn Andersson bjorn.andersson@linaro.org Cc: Mathieu Poirier mathieu.poirier@linaro.org Cc: Peng Fan peng.fan@nxp.com Reviewed-and-tested-by: Peng Fan peng.fan@nxp.com Fixes: 79806d32d5aa ("remoteproc: imx_rproc: support i.MX8MN/P") Signed-off-by: Dong Aisheng aisheng.dong@nxp.com Signed-off-by: Peng Fan peng.fan@nxp.com stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20210910090621.3073540-4-peng.fan@oss.nxp.com Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/remoteproc/imx_rproc.c | 35 ++++++++++++++++++++-------------- 1 file changed, 21 insertions(+), 14 deletions(-)
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index d88f76f5305eb..71dcc6dd32e40 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -71,6 +71,7 @@ struct imx_rproc_mem { /* att flags */ /* M4 own area. Can be mapped at probe */ #define ATT_OWN BIT(1) +#define ATT_IOMEM BIT(2)
/* address translation table */ struct imx_rproc_att { @@ -117,7 +118,7 @@ struct imx_rproc { static const struct imx_rproc_att imx_rproc_att_imx8mn[] = { /* dev addr , sys addr , size , flags */ /* ITCM */ - { 0x00000000, 0x007E0000, 0x00020000, ATT_OWN }, + { 0x00000000, 0x007E0000, 0x00020000, ATT_OWN | ATT_IOMEM }, /* OCRAM_S */ { 0x00180000, 0x00180000, 0x00009000, 0 }, /* OCRAM */ @@ -131,7 +132,7 @@ static const struct imx_rproc_att imx_rproc_att_imx8mn[] = { /* DDR (Code) - alias */ { 0x10000000, 0x40000000, 0x0FFE0000, 0 }, /* DTCM */ - { 0x20000000, 0x00800000, 0x00020000, ATT_OWN }, + { 0x20000000, 0x00800000, 0x00020000, ATT_OWN | ATT_IOMEM }, /* OCRAM_S - alias */ { 0x20180000, 0x00180000, 0x00008000, ATT_OWN }, /* OCRAM */ @@ -147,7 +148,7 @@ static const struct imx_rproc_att imx_rproc_att_imx8mn[] = { static const struct imx_rproc_att imx_rproc_att_imx8mq[] = { /* dev addr , sys addr , size , flags */ /* TCML - alias */ - { 0x00000000, 0x007e0000, 0x00020000, 0 }, + { 0x00000000, 0x007e0000, 0x00020000, ATT_IOMEM}, /* OCRAM_S */ { 0x00180000, 0x00180000, 0x00008000, 0 }, /* OCRAM */ @@ -159,9 +160,9 @@ static const struct imx_rproc_att imx_rproc_att_imx8mq[] = { /* DDR (Code) - alias */ { 0x10000000, 0x80000000, 0x0FFE0000, 0 }, /* TCML */ - { 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN }, + { 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN | ATT_IOMEM}, /* TCMU */ - { 0x20000000, 0x00800000, 0x00020000, ATT_OWN }, + { 0x20000000, 0x00800000, 0x00020000, ATT_OWN | ATT_IOMEM}, /* OCRAM_S */ { 0x20180000, 0x00180000, 0x00008000, ATT_OWN }, /* OCRAM */ @@ -199,12 +200,12 @@ static const struct imx_rproc_att imx_rproc_att_imx7d[] = { /* OCRAM_PXP (Code) - alias */ { 0x00940000, 0x00940000, 0x00008000, 0 }, /* TCML (Code) */ - { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN }, + { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN | ATT_IOMEM }, /* DDR (Code) - alias, first part of DDR (Data) */ { 0x10000000, 0x80000000, 0x0FFF0000, 0 },
/* TCMU (Data) */ - { 0x20000000, 0x00800000, 0x00008000, ATT_OWN }, + { 0x20000000, 0x00800000, 0x00008000, ATT_OWN | ATT_IOMEM }, /* OCRAM (Data) */ { 0x20200000, 0x00900000, 0x00020000, 0 }, /* OCRAM_EPDC (Data) */ @@ -218,18 +219,18 @@ static const struct imx_rproc_att imx_rproc_att_imx7d[] = { static const struct imx_rproc_att imx_rproc_att_imx6sx[] = { /* dev addr , sys addr , size , flags */ /* TCML (M4 Boot Code) - alias */ - { 0x00000000, 0x007F8000, 0x00008000, 0 }, + { 0x00000000, 0x007F8000, 0x00008000, ATT_IOMEM }, /* OCRAM_S (Code) */ { 0x00180000, 0x008F8000, 0x00004000, 0 }, /* OCRAM_S (Code) - alias */ { 0x00180000, 0x008FC000, 0x00004000, 0 }, /* TCML (Code) */ - { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN }, + { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN | ATT_IOMEM }, /* DDR (Code) - alias, first part of DDR (Data) */ { 0x10000000, 0x80000000, 0x0FFF8000, 0 },
/* TCMU (Data) */ - { 0x20000000, 0x00800000, 0x00008000, ATT_OWN }, + { 0x20000000, 0x00800000, 0x00008000, ATT_OWN | ATT_IOMEM }, /* OCRAM_S (Data) - alias? */ { 0x208F8000, 0x008F8000, 0x00004000, 0 }, /* DDR (Data) */ @@ -341,7 +342,7 @@ static int imx_rproc_stop(struct rproc *rproc) }
static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da, - size_t len, u64 *sys) + size_t len, u64 *sys, bool *is_iomem) { const struct imx_rproc_dcfg *dcfg = priv->dcfg; int i; @@ -354,6 +355,8 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da, unsigned int offset = da - att->da;
*sys = att->sa + offset; + if (is_iomem) + *is_iomem = att->flags & ATT_IOMEM; return 0; } } @@ -377,7 +380,7 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *i * On device side we have many aliases, so we need to convert device * address (M4) to system bus address first. */ - if (imx_rproc_da_to_sys(priv, da, len, &sys)) + if (imx_rproc_da_to_sys(priv, da, len, &sys, is_iomem)) return NULL;
for (i = 0; i < IMX_RPROC_MEM_MAX; i++) { @@ -553,8 +556,12 @@ static int imx_rproc_addr_init(struct imx_rproc *priv, if (b >= IMX_RPROC_MEM_MAX) break;
- priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, - att->sa, att->size); + if (att->flags & ATT_IOMEM) + priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, + att->sa, att->size); + else + priv->mem[b].cpu_addr = devm_ioremap_wc(&pdev->dev, + att->sa, att->size); if (!priv->mem[b].cpu_addr) { dev_err(dev, "failed to remap %#x bytes from %#x\n", att->size, att->sa); return -ENOMEM;