Use the newly added of_reserved_mem_region_to_resource() and of_reserved_mem_region_count() functions to handle "memory-region" properties.
The error handling is a bit different in some cases. Often "memory-region" is optional, so failed lookup is not an error. But then an error in of_reserved_mem_lookup() is treated as an error. However, that distinction is not really important. Either the region is available and usable or it is not. So now, it is just of_reserved_mem_region_to_resource() which is checked for an error. Signed-off-by: Rob Herring (Arm) <[email protected]> --- v7: - Split QCom to separate patch --- drivers/remoteproc/qcom_q6v5_adsp.c | 24 ++++------ drivers/remoteproc/qcom_q6v5_mss.c | 60 ++++++++----------------- drivers/remoteproc/qcom_q6v5_pas.c | 69 +++++++++++------------------ drivers/remoteproc/qcom_q6v5_wcss.c | 25 +++++------ drivers/remoteproc/qcom_wcnss.c | 23 ++++------ 5 files changed, 72 insertions(+), 129 deletions(-) diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c index e98b7e03162c..d3933a66ed3d 100644 --- a/drivers/remoteproc/qcom_q6v5_adsp.c +++ b/drivers/remoteproc/qcom_q6v5_adsp.c @@ -625,26 +625,20 @@ static int adsp_init_mmio(struct qcom_adsp *adsp, static int adsp_alloc_memory_region(struct qcom_adsp *adsp) { - struct reserved_mem *rmem = NULL; - struct device_node *node; - - node = of_parse_phandle(adsp->dev->of_node, "memory-region", 0); - if (node) - rmem = of_reserved_mem_lookup(node); - of_node_put(node); + int ret; + struct resource res; - if (!rmem) { + ret = of_reserved_mem_region_to_resource(adsp->dev->of_node, 0, &res); + if (ret) { dev_err(adsp->dev, "unable to resolve memory-region\n"); - return -EINVAL; + return ret; } - adsp->mem_phys = adsp->mem_reloc = rmem->base; - adsp->mem_size = rmem->size; - adsp->mem_region = devm_ioremap_wc(adsp->dev, - adsp->mem_phys, adsp->mem_size); + adsp->mem_phys = adsp->mem_reloc = res.start; + adsp->mem_size = resource_size(&res); + adsp->mem_region = devm_ioremap_resource_wc(adsp->dev, &res); if (!adsp->mem_region) { - dev_err(adsp->dev, "unable to map memory region: %pa+%zx\n", - &rmem->base, adsp->mem_size); + dev_err(adsp->dev, "unable to map memory region: %pR\n", &res); return -EBUSY; } diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c index 3087d895b87f..91940977ca89 100644 --- a/drivers/remoteproc/qcom_q6v5_mss.c +++ b/drivers/remoteproc/qcom_q6v5_mss.c @@ -1970,8 +1970,8 @@ static int q6v5_init_reset(struct q6v5 *qproc) static int q6v5_alloc_memory_region(struct q6v5 *qproc) { struct device_node *child; - struct reserved_mem *rmem; - struct device_node *node; + struct resource res; + int ret; /* * In the absence of mba/mpss sub-child, extract the mba and mpss @@ -1979,71 +1979,49 @@ static int q6v5_alloc_memory_region(struct q6v5 *qproc) */ child = of_get_child_by_name(qproc->dev->of_node, "mba"); if (!child) { - node = of_parse_phandle(qproc->dev->of_node, - "memory-region", 0); + ret = of_reserved_mem_region_to_resource(qproc->dev->of_node, 0, &res); } else { - node = of_parse_phandle(child, "memory-region", 0); + ret = of_reserved_mem_region_to_resource(child, 0, &res); of_node_put(child); } - if (!node) { - dev_err(qproc->dev, "no mba memory-region specified\n"); - return -EINVAL; - } - - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { + if (ret) { dev_err(qproc->dev, "unable to resolve mba region\n"); - return -EINVAL; + return ret; } - qproc->mba_phys = rmem->base; - qproc->mba_size = rmem->size; + qproc->mba_phys = res.start; + qproc->mba_size = resource_size(&res); if (!child) { - node = of_parse_phandle(qproc->dev->of_node, - "memory-region", 1); + ret = of_reserved_mem_region_to_resource(qproc->dev->of_node, 1, &res); } else { child = of_get_child_by_name(qproc->dev->of_node, "mpss"); - node = of_parse_phandle(child, "memory-region", 0); + ret = of_reserved_mem_region_to_resource(child, 0, &res); of_node_put(child); } - if (!node) { - dev_err(qproc->dev, "no mpss memory-region specified\n"); - return -EINVAL; - } - - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { + if (ret) { dev_err(qproc->dev, "unable to resolve mpss region\n"); - return -EINVAL; + return ret; } - qproc->mpss_phys = qproc->mpss_reloc = rmem->base; - qproc->mpss_size = rmem->size; + qproc->mpss_phys = qproc->mpss_reloc = res.start; + qproc->mpss_size = resource_size(&res); if (!child) { - node = of_parse_phandle(qproc->dev->of_node, "memory-region", 2); + ret = of_reserved_mem_region_to_resource(qproc->dev->of_node, 2, &res); } else { child = of_get_child_by_name(qproc->dev->of_node, "metadata"); - node = of_parse_phandle(child, "memory-region", 0); + ret = of_reserved_mem_region_to_resource(child, 0, &res); of_node_put(child); } - if (!node) + if (ret) return 0; - rmem = of_reserved_mem_lookup(node); - if (!rmem) { - dev_err(qproc->dev, "unable to resolve metadata region\n"); - return -EINVAL; - } - - qproc->mdata_phys = rmem->base; - qproc->mdata_size = rmem->size; + qproc->mdata_phys = res.start; + qproc->mdata_size = resource_size(&res); return 0; } diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c index 158bcd6cc85c..7bac843ce406 100644 --- a/drivers/remoteproc/qcom_q6v5_pas.c +++ b/drivers/remoteproc/qcom_q6v5_pas.c @@ -547,53 +547,37 @@ static void qcom_pas_pds_detach(struct qcom_pas *pas, struct device **pds, size_ static int qcom_pas_alloc_memory_region(struct qcom_pas *pas) { - struct reserved_mem *rmem; - struct device_node *node; - - node = of_parse_phandle(pas->dev->of_node, "memory-region", 0); - if (!node) { - dev_err(pas->dev, "no memory-region specified\n"); - return -EINVAL; - } + struct resource res; + int ret; - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { + ret = of_reserved_mem_region_to_resource(pas->dev->of_node, 0, &res); + if (ret) { dev_err(pas->dev, "unable to resolve memory-region\n"); - return -EINVAL; + return ret; } - pas->mem_phys = pas->mem_reloc = rmem->base; - pas->mem_size = rmem->size; - pas->mem_region = devm_ioremap_wc(pas->dev, pas->mem_phys, pas->mem_size); + pas->mem_phys = pas->mem_reloc = res.start; + pas->mem_size = resource_size(&res); + pas->mem_region = devm_ioremap_resource_wc(pas->dev, &res); if (!pas->mem_region) { - dev_err(pas->dev, "unable to map memory region: %pa+%zx\n", - &rmem->base, pas->mem_size); + dev_err(pas->dev, "unable to map memory region: %pR\n", &res); return -EBUSY; } if (!pas->dtb_pas_id) return 0; - node = of_parse_phandle(pas->dev->of_node, "memory-region", 1); - if (!node) { - dev_err(pas->dev, "no dtb memory-region specified\n"); - return -EINVAL; - } - - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { + ret = of_reserved_mem_region_to_resource(pas->dev->of_node, 1, &res); + if (ret) { dev_err(pas->dev, "unable to resolve dtb memory-region\n"); - return -EINVAL; + return ret; } - pas->dtb_mem_phys = pas->dtb_mem_reloc = rmem->base; - pas->dtb_mem_size = rmem->size; - pas->dtb_mem_region = devm_ioremap_wc(pas->dev, pas->dtb_mem_phys, pas->dtb_mem_size); + pas->dtb_mem_phys = pas->dtb_mem_reloc = res.start; + pas->dtb_mem_size = resource_size(&res); + pas->dtb_mem_region = devm_ioremap_resource_wc(pas->dev, &res); if (!pas->dtb_mem_region) { - dev_err(pas->dev, "unable to map dtb memory region: %pa+%zx\n", - &rmem->base, pas->dtb_mem_size); + dev_err(pas->dev, "unable to map dtb memory region: %pR\n", &res); return -EBUSY; } @@ -603,7 +587,6 @@ static int qcom_pas_alloc_memory_region(struct qcom_pas *pas) static int qcom_pas_assign_memory_region(struct qcom_pas *pas) { struct qcom_scm_vmperm perm[MAX_ASSIGN_COUNT]; - struct device_node *node; unsigned int perm_size; int offset; int ret; @@ -612,17 +595,15 @@ static int qcom_pas_assign_memory_region(struct qcom_pas *pas) return 0; for (offset = 0; offset < pas->region_assign_count; ++offset) { - struct reserved_mem *rmem = NULL; - - node = of_parse_phandle(pas->dev->of_node, "memory-region", - pas->region_assign_idx + offset); - if (node) - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - if (!rmem) { + struct resource res; + + ret = of_reserved_mem_region_to_resource(pas->dev->of_node, + pas->region_assign_idx + offset, + &res); + if (ret) { dev_err(pas->dev, "unable to resolve shareable memory-region index %d\n", offset); - return -EINVAL; + return ret; } if (pas->region_assign_shared) { @@ -637,8 +618,8 @@ static int qcom_pas_assign_memory_region(struct qcom_pas *pas) perm_size = 1; } - pas->region_assign_phys[offset] = rmem->base; - pas->region_assign_size[offset] = rmem->size; + pas->region_assign_phys[offset] = res.start; + pas->region_assign_size[offset] = resource_size(&res); pas->region_assign_owners[offset] = BIT(QCOM_SCM_VMID_HLOS); ret = qcom_scm_assign_mem(pas->region_assign_phys[offset], diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c index 07c88623f597..ca748e3bcc7f 100644 --- a/drivers/remoteproc/qcom_q6v5_wcss.c +++ b/drivers/remoteproc/qcom_q6v5_wcss.c @@ -873,27 +873,22 @@ static int q6v5_wcss_init_mmio(struct q6v5_wcss *wcss, static int q6v5_alloc_memory_region(struct q6v5_wcss *wcss) { - struct reserved_mem *rmem = NULL; - struct device_node *node; struct device *dev = wcss->dev; + struct resource res; + int ret; - node = of_parse_phandle(dev->of_node, "memory-region", 0); - if (node) - rmem = of_reserved_mem_lookup(node); - of_node_put(node); - - if (!rmem) { + ret = of_reserved_mem_region_to_resource(dev->of_node, 0, &res); + if (ret) { dev_err(dev, "unable to acquire memory-region\n"); - return -EINVAL; + return ret; } - wcss->mem_phys = rmem->base; - wcss->mem_reloc = rmem->base; - wcss->mem_size = rmem->size; - wcss->mem_region = devm_ioremap_wc(dev, wcss->mem_phys, wcss->mem_size); + wcss->mem_phys = res.start; + wcss->mem_reloc = res.start; + wcss->mem_size = resource_size(&res); + wcss->mem_region = devm_ioremap_resource_wc(dev, &res); if (!wcss->mem_region) { - dev_err(dev, "unable to map memory region: %pa+%pa\n", - &rmem->base, &rmem->size); + dev_err(dev, "unable to map memory region: %pR\n", &res); return -EBUSY; } diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c index 2c7e519a2254..14005fb049a2 100644 --- a/drivers/remoteproc/qcom_wcnss.c +++ b/drivers/remoteproc/qcom_wcnss.c @@ -526,25 +526,20 @@ static int wcnss_request_irq(struct qcom_wcnss *wcnss, static int wcnss_alloc_memory_region(struct qcom_wcnss *wcnss) { - struct reserved_mem *rmem = NULL; - struct device_node *node; - - node = of_parse_phandle(wcnss->dev->of_node, "memory-region", 0); - if (node) - rmem = of_reserved_mem_lookup(node); - of_node_put(node); + struct resource res; + int ret; - if (!rmem) { + ret = of_reserved_mem_region_to_resource(wcnss->dev->of_node, 0, &res); + if (ret) { dev_err(wcnss->dev, "unable to resolve memory-region\n"); - return -EINVAL; + return ret; } - wcnss->mem_phys = wcnss->mem_reloc = rmem->base; - wcnss->mem_size = rmem->size; - wcnss->mem_region = devm_ioremap_wc(wcnss->dev, wcnss->mem_phys, wcnss->mem_size); + wcnss->mem_phys = wcnss->mem_reloc = res.start; + wcnss->mem_size = resource_size(&res); + wcnss->mem_region = devm_ioremap_resource_wc(wcnss->dev, &res); if (!wcnss->mem_region) { - dev_err(wcnss->dev, "unable to map memory region: %pa+%zx\n", - &rmem->base, wcnss->mem_size); + dev_err(wcnss->dev, "unable to map memory region: %pR\n", &res); return -EBUSY; } -- 2.51.0
