The of_get_memories() implementations in the TI K3 R5, DSP and M4 remoteproc drivers initialize and assign memory regions used by the remote processor in the same way. Refactor these implementations into ti_k3_common.c driver as k3_rproc_of_get_memories() use this common function for mem initialization in R5, DSP and M4 drivers.
Note: The TCM addresses for R5 core are configurable based on the 'loczrama' setting. Therefore, override the bus_addr assignment done by the common function for TCMs of R5 remote processors by reading the 'loczrama' DT property in k3_r5_core_of_get_internal_memories(). Signed-off-by: Beleswar Padhi <b-pa...@ti.com> --- v10: Changelog: 1. Updated commit message to call out the changes better. Link to v9: https://lore.kernel.org/all/20250317120622.1746415-24-b-pa...@ti.com/ drivers/remoteproc/ti_k3_common.c | 53 ++++++++++++++++++++++ drivers/remoteproc/ti_k3_common.h | 2 + drivers/remoteproc/ti_k3_dsp_remoteproc.c | 54 +--------------------- drivers/remoteproc/ti_k3_m4_remoteproc.c | 54 +--------------------- drivers/remoteproc/ti_k3_r5_remoteproc.c | 55 ++++------------------- 5 files changed, 66 insertions(+), 152 deletions(-) diff --git a/drivers/remoteproc/ti_k3_common.c b/drivers/remoteproc/ti_k3_common.c index e469e9ea426fc..4358502850214 100644 --- a/drivers/remoteproc/ti_k3_common.c +++ b/drivers/remoteproc/ti_k3_common.c @@ -410,5 +410,58 @@ void *k3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem) } EXPORT_SYMBOL_GPL(k3_rproc_da_to_va); +int k3_rproc_of_get_memories(struct platform_device *pdev, + struct k3_rproc *kproc) +{ + const struct k3_rproc_dev_data *data = kproc->data; + struct device *dev = &pdev->dev; + struct resource *res; + int num_mems = 0; + int i; + + num_mems = kproc->data->num_mems; + kproc->mem = devm_kcalloc(kproc->dev, num_mems, + sizeof(*kproc->mem), GFP_KERNEL); + if (!kproc->mem) + return -ENOMEM; + + for (i = 0; i < num_mems; i++) { + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + data->mems[i].name); + if (!res) { + dev_err(dev, "found no memory resource for %s\n", + data->mems[i].name); + return -EINVAL; + } + if (!devm_request_mem_region(dev, res->start, + resource_size(res), + dev_name(dev))) { + dev_err(dev, "could not request %s region for resource\n", + data->mems[i].name); + return -EBUSY; + } + + kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start, + resource_size(res)); + if (!kproc->mem[i].cpu_addr) { + dev_err(dev, "failed to map %s memory\n", + data->mems[i].name); + return -ENOMEM; + } + kproc->mem[i].bus_addr = res->start; + kproc->mem[i].dev_addr = data->mems[i].dev_addr; + kproc->mem[i].size = resource_size(res); + + dev_dbg(dev, "memory %8s: bus addr %pa size 0x%zx va %pK da 0x%x\n", + data->mems[i].name, &kproc->mem[i].bus_addr, + kproc->mem[i].size, kproc->mem[i].cpu_addr, + kproc->mem[i].dev_addr); + } + kproc->num_mems = num_mems; + + return 0; +} +EXPORT_SYMBOL_GPL(k3_rproc_of_get_memories); + MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("TI K3 common Remoteproc code"); diff --git a/drivers/remoteproc/ti_k3_common.h b/drivers/remoteproc/ti_k3_common.h index d600d18b9c7eb..a811c4951e6b0 100644 --- a/drivers/remoteproc/ti_k3_common.h +++ b/drivers/remoteproc/ti_k3_common.h @@ -105,4 +105,6 @@ struct resource_table *k3_get_loaded_rsc_table(struct rproc *rproc, size_t *rsc_table_sz); void *k3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem); +int k3_rproc_of_get_memories(struct platform_device *pdev, + struct k3_rproc *kproc); #endif /* REMOTEPROC_TI_K3_COMMON_H */ diff --git a/drivers/remoteproc/ti_k3_dsp_remoteproc.c b/drivers/remoteproc/ti_k3_dsp_remoteproc.c index fa1943c39df90..5ba82944a537f 100644 --- a/drivers/remoteproc/ti_k3_dsp_remoteproc.c +++ b/drivers/remoteproc/ti_k3_dsp_remoteproc.c @@ -66,58 +66,6 @@ static const struct rproc_ops k3_dsp_rproc_ops = { .get_loaded_rsc_table = k3_get_loaded_rsc_table, }; -static int k3_dsp_rproc_of_get_memories(struct platform_device *pdev, - struct k3_rproc *kproc) -{ - const struct k3_rproc_dev_data *data = kproc->data; - struct device *dev = &pdev->dev; - struct resource *res; - int num_mems = 0; - int i; - - num_mems = kproc->data->num_mems; - kproc->mem = devm_kcalloc(kproc->dev, num_mems, - sizeof(*kproc->mem), GFP_KERNEL); - if (!kproc->mem) - return -ENOMEM; - - for (i = 0; i < num_mems; i++) { - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - data->mems[i].name); - if (!res) { - dev_err(dev, "found no memory resource for %s\n", - data->mems[i].name); - return -EINVAL; - } - if (!devm_request_mem_region(dev, res->start, - resource_size(res), - dev_name(dev))) { - dev_err(dev, "could not request %s region for resource\n", - data->mems[i].name); - return -EBUSY; - } - - kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start, - resource_size(res)); - if (!kproc->mem[i].cpu_addr) { - dev_err(dev, "failed to map %s memory\n", - data->mems[i].name); - return -ENOMEM; - } - kproc->mem[i].bus_addr = res->start; - kproc->mem[i].dev_addr = data->mems[i].dev_addr; - kproc->mem[i].size = resource_size(res); - - dev_dbg(dev, "memory %8s: bus addr %pa size 0x%zx va %pK da 0x%x\n", - data->mems[i].name, &kproc->mem[i].bus_addr, - kproc->mem[i].size, kproc->mem[i].cpu_addr, - kproc->mem[i].dev_addr); - } - kproc->num_mems = num_mems; - - return 0; -} - static void k3_dsp_mem_release(void *data) { struct device *dev = data; @@ -269,7 +217,7 @@ static int k3_dsp_rproc_probe(struct platform_device *pdev) if (ret) return ret; - ret = k3_dsp_rproc_of_get_memories(pdev, kproc); + ret = k3_rproc_of_get_memories(pdev, kproc); if (ret) return ret; diff --git a/drivers/remoteproc/ti_k3_m4_remoteproc.c b/drivers/remoteproc/ti_k3_m4_remoteproc.c index db7c908e04392..81862a7809b5b 100644 --- a/drivers/remoteproc/ti_k3_m4_remoteproc.c +++ b/drivers/remoteproc/ti_k3_m4_remoteproc.c @@ -21,58 +21,6 @@ #include "ti_sci_proc.h" #include "ti_k3_common.h" -static int k3_m4_rproc_of_get_memories(struct platform_device *pdev, - struct k3_rproc *kproc) -{ - const struct k3_rproc_dev_data *data = kproc->data; - struct device *dev = &pdev->dev; - struct resource *res; - int num_mems; - int i; - - num_mems = kproc->data->num_mems; - kproc->mem = devm_kcalloc(kproc->dev, num_mems, - sizeof(*kproc->mem), GFP_KERNEL); - if (!kproc->mem) - return -ENOMEM; - - for (i = 0; i < num_mems; i++) { - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - data->mems[i].name); - if (!res) { - dev_err(dev, "found no memory resource for %s\n", - data->mems[i].name); - return -EINVAL; - } - if (!devm_request_mem_region(dev, res->start, - resource_size(res), - dev_name(dev))) { - dev_err(dev, "could not request %s region for resource\n", - data->mems[i].name); - return -EBUSY; - } - - kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start, - resource_size(res)); - if (!kproc->mem[i].cpu_addr) { - dev_err(dev, "failed to map %s memory\n", - data->mems[i].name); - return -ENOMEM; - } - kproc->mem[i].bus_addr = res->start; - kproc->mem[i].dev_addr = data->mems[i].dev_addr; - kproc->mem[i].size = resource_size(res); - - dev_dbg(dev, "memory %8s: bus addr %pa size 0x%zx va %pK da 0x%x\n", - data->mems[i].name, &kproc->mem[i].bus_addr, - kproc->mem[i].size, kproc->mem[i].cpu_addr, - kproc->mem[i].dev_addr); - } - kproc->num_mems = num_mems; - - return 0; -} - static void k3_m4_rproc_dev_mem_release(void *data) { struct device *dev = data; @@ -225,7 +173,7 @@ static int k3_m4_rproc_probe(struct platform_device *pdev) if (ret) return ret; - ret = k3_m4_rproc_of_get_memories(pdev, kproc); + ret = k3_rproc_of_get_memories(pdev, kproc); if (ret) return ret; diff --git a/drivers/remoteproc/ti_k3_r5_remoteproc.c b/drivers/remoteproc/ti_k3_r5_remoteproc.c index 93adb2d142e18..94e9506a8e6e2 100644 --- a/drivers/remoteproc/ti_k3_r5_remoteproc.c +++ b/drivers/remoteproc/ti_k3_r5_remoteproc.c @@ -1009,55 +1009,22 @@ static int k3_r5_core_of_get_internal_memories(struct platform_device *pdev, const struct k3_rproc_dev_data *data = kproc->data; struct device *dev = &pdev->dev; struct k3_r5_core *core = kproc->priv; - struct resource *res; - int num_mems; - int i; + int num_mems = data->num_mems; + int i, ret; - num_mems = kproc->data->num_mems; - kproc->mem = devm_kcalloc(kproc->dev, num_mems, sizeof(*kproc->mem), - GFP_KERNEL); - if (!kproc->mem) - return -ENOMEM; + ret = k3_rproc_of_get_memories(pdev, kproc); + if (ret) + return ret; for (i = 0; i < num_mems; i++) { - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - data->mems[i].name); - if (!res) { - dev_err(dev, "found no memory resource for %s\n", - data->mems[i].name); - return -EINVAL; - } - if (!devm_request_mem_region(dev, res->start, - resource_size(res), - dev_name(dev))) { - dev_err(dev, "could not request %s region for resource\n", - data->mems[i].name); - return -EBUSY; - } - - /* - * TCMs are designed in general to support RAM-like backing - * memories. So, map these as Normal Non-Cached memories. This - * also avoids/fixes any potential alignment faults due to - * unaligned data accesses when using memcpy() or memset() - * functions (normally seen with device type memory). - */ - kproc->mem[i].cpu_addr = devm_ioremap_wc(dev, res->start, - resource_size(res)); - if (!kproc->mem[i].cpu_addr) { - dev_err(dev, "failed to map %s memory\n", - data->mems[i].name); - return -ENOMEM; - } - kproc->mem[i].bus_addr = res->start; - /* * TODO: * The R5F cores can place ATCM & BTCM anywhere in its address * based on the corresponding Region Registers in the System * Control coprocessor. For now, place ATCM and BTCM at * addresses 0 and 0x41010000 (same as the bus address on AM65x - * SoCs) based on loczrama setting + * SoCs) based on loczrama setting overriding default assignment + * done by k3_rproc_of_get_memories(). */ if (!strcmp(data->mems[i].name, "atcm")) { kproc->mem[i].dev_addr = core->loczrama ? @@ -1066,14 +1033,10 @@ static int k3_r5_core_of_get_internal_memories(struct platform_device *pdev, kproc->mem[i].dev_addr = core->loczrama ? K3_R5_TCM_DEV_ADDR : 0; } - kproc->mem[i].size = resource_size(res); - dev_dbg(dev, "memory %5s: bus addr %pa size 0x%zx va %pK da 0x%x\n", - data->mems[i].name, &kproc->mem[i].bus_addr, - kproc->mem[i].size, kproc->mem[i].cpu_addr, - kproc->mem[i].dev_addr); + dev_dbg(dev, "Updating bus addr %pa of memory %5s\n", + &kproc->mem[i].bus_addr, data->mems[i].name); } - kproc->num_mems = num_mems; return 0; } -- 2.34.1
