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authorLinus Torvalds <torvalds@linux-foundation.org>2018-02-05 10:07:40 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-05 10:07:40 -0800
commit2deb41b245320f0eefb535a5c8ea19ed66b33c04 (patch)
treed61cba8a2efc8cd9e90494d488e706980a2e9734
parent67fb3b92b0f92a161e25370d437ae4ba08089e75 (diff)
parent0a8b81cb2e413eff4cd9aeac7ef415150b699fb4 (diff)
Merge tag 'rproc-v4.16' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson: "This contains a few bug fixes and a cleanup up of the resource-table handling in the framework, which removes the need for drivers with no resource table to provide a fake one" * tag 'rproc-v4.16' of git://github.com/andersson/remoteproc: remoteproc: Reset table_ptr on stop remoteproc: Drop dangling find_rsc_table dummies remoteproc: Move resource table load logic to find remoteproc: Don't handle empty resource table remoteproc: Merge rproc_ops and rproc_fw_ops remoteproc: Clone rproc_ops in rproc_alloc() remoteproc: Cache resource table size remoteproc: Remove depricated crash completion virtio_remoteproc: correct put_device virtio_device.dev
-rw-r--r--drivers/remoteproc/qcom_adsp_pil.c8
-rw-r--r--drivers/remoteproc/qcom_common.c19
-rw-r--r--drivers/remoteproc/qcom_common.h4
-rw-r--r--drivers/remoteproc/qcom_q6v5_pil.c18
-rw-r--r--drivers/remoteproc/qcom_wcnss.c8
-rw-r--r--drivers/remoteproc/remoteproc_core.c83
-rw-r--r--drivers/remoteproc/remoteproc_elf_loader.c59
-rw-r--r--drivers/remoteproc/remoteproc_internal.h57
-rw-r--r--drivers/remoteproc/remoteproc_virtio.c2
-rw-r--r--drivers/remoteproc/st_slim_rproc.c32
-rw-r--r--include/linux/remoteproc.h21
11 files changed, 107 insertions, 204 deletions
diff --git a/drivers/remoteproc/qcom_adsp_pil.c b/drivers/remoteproc/qcom_adsp_pil.c
index 3f6af54dbc96..373c167892d7 100644
--- a/drivers/remoteproc/qcom_adsp_pil.c
+++ b/drivers/remoteproc/qcom_adsp_pil.c
@@ -85,11 +85,6 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw)
adsp->mem_region, adsp->mem_phys, adsp->mem_size);
}
-static const struct rproc_fw_ops adsp_fw_ops = {
- .find_rsc_table = qcom_mdt_find_rsc_table,
- .load = adsp_load,
-};
-
static int adsp_start(struct rproc *rproc)
{
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
@@ -182,6 +177,7 @@ static const struct rproc_ops adsp_ops = {
.start = adsp_start,
.stop = adsp_stop,
.da_to_va = adsp_da_to_va,
+ .load = adsp_load,
};
static irqreturn_t adsp_wdog_interrupt(int irq, void *dev)
@@ -344,8 +340,6 @@ static int adsp_probe(struct platform_device *pdev)
return -ENOMEM;
}
- rproc->fw_ops = &adsp_fw_ops;
-
adsp = (struct qcom_adsp *)rproc->priv;
adsp->dev = &pdev->dev;
adsp->rproc = rproc;
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index e9b5f2a98c4d..00602499713f 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -32,25 +32,6 @@
static BLOCKING_NOTIFIER_HEAD(ssr_notifiers);
-/**
- * qcom_mdt_find_rsc_table() - provide dummy resource table for remoteproc
- * @rproc: remoteproc handle
- * @fw: firmware header
- * @tablesz: outgoing size of the table
- *
- * Returns a dummy table.
- */
-struct resource_table *qcom_mdt_find_rsc_table(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz)
-{
- static struct resource_table table = { .ver = 1, };
-
- *tablesz = sizeof(table);
- return &table;
-}
-EXPORT_SYMBOL_GPL(qcom_mdt_find_rsc_table);
-
static int glink_subdev_probe(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
diff --git a/drivers/remoteproc/qcom_common.h b/drivers/remoteproc/qcom_common.h
index 832e20271664..728be9834d8b 100644
--- a/drivers/remoteproc/qcom_common.h
+++ b/drivers/remoteproc/qcom_common.h
@@ -27,10 +27,6 @@ struct qcom_rproc_ssr {
const char *name;
};
-struct resource_table *qcom_mdt_find_rsc_table(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz);
-
void qcom_add_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink);
void qcom_remove_glink_subdev(struct rproc *rproc, struct qcom_rproc_glink *glink);
diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 8a3fa2bcc9f6..b4e5e725848d 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -303,16 +303,6 @@ static void q6v5_clk_disable(struct device *dev,
clk_disable_unprepare(clks[i]);
}
-static struct resource_table *q6v5_find_rsc_table(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz)
-{
- static struct resource_table table = { .ver = 1, };
-
- *tablesz = sizeof(table);
- return &table;
-}
-
static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
bool remote_owner, phys_addr_t addr,
size_t size)
@@ -342,11 +332,6 @@ static int q6v5_load(struct rproc *rproc, const struct firmware *fw)
return 0;
}
-static const struct rproc_fw_ops q6v5_fw_ops = {
- .find_rsc_table = q6v5_find_rsc_table,
- .load = q6v5_load,
-};
-
static int q6v5_rmb_pbl_wait(struct q6v5 *qproc, int ms)
{
unsigned long timeout;
@@ -931,6 +916,7 @@ static const struct rproc_ops q6v5_ops = {
.start = q6v5_start,
.stop = q6v5_stop,
.da_to_va = q6v5_da_to_va,
+ .load = q6v5_load,
};
static irqreturn_t q6v5_wdog_interrupt(int irq, void *dev)
@@ -1150,8 +1136,6 @@ static int q6v5_probe(struct platform_device *pdev)
return -ENOMEM;
}
- rproc->fw_ops = &q6v5_fw_ops;
-
qproc = (struct q6v5 *)rproc->priv;
qproc->dev = &pdev->dev;
qproc->rproc = rproc;
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index c7686393d505..3f0609236a76 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -156,11 +156,6 @@ static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
wcnss->mem_region, wcnss->mem_phys, wcnss->mem_size);
}
-static const struct rproc_fw_ops wcnss_fw_ops = {
- .find_rsc_table = qcom_mdt_find_rsc_table,
- .load = wcnss_load,
-};
-
static void wcnss_indicate_nv_download(struct qcom_wcnss *wcnss)
{
u32 val;
@@ -313,6 +308,7 @@ static const struct rproc_ops wcnss_ops = {
.start = wcnss_start,
.stop = wcnss_stop,
.da_to_va = wcnss_da_to_va,
+ .load = wcnss_load,
};
static irqreturn_t wcnss_wdog_interrupt(int irq, void *dev)
@@ -492,8 +488,6 @@ static int wcnss_probe(struct platform_device *pdev)
return -ENOMEM;
}
- rproc->fw_ops = &wcnss_fw_ops;
-
wcnss = (struct qcom_wcnss *)rproc->priv;
wcnss->dev = &pdev->dev;
wcnss->rproc = rproc;
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index eab14b414bf0..4170dfbd93bd 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -732,17 +732,20 @@ static rproc_handle_resource_t rproc_loading_handlers[RSC_LAST] = {
};
/* handle firmware resource entries before booting the remote processor */
-static int rproc_handle_resources(struct rproc *rproc, int len,
+static int rproc_handle_resources(struct rproc *rproc,
rproc_handle_resource_t handlers[RSC_LAST])
{
struct device *dev = &rproc->dev;
rproc_handle_resource_t handler;
int ret = 0, i;
+ if (!rproc->table_ptr)
+ return 0;
+
for (i = 0; i < rproc->table_ptr->num; i++) {
int offset = rproc->table_ptr->offset[i];
struct fw_rsc_hdr *hdr = (void *)rproc->table_ptr + offset;
- int avail = len - offset - sizeof(*hdr);
+ int avail = rproc->table_sz - offset - sizeof(*hdr);
void *rsc = (void *)hdr + sizeof(*hdr);
/* make sure table isn't truncated */
@@ -849,16 +852,9 @@ static void rproc_resource_cleanup(struct rproc *rproc)
static int rproc_start(struct rproc *rproc, const struct firmware *fw)
{
- struct resource_table *table, *loaded_table;
+ struct resource_table *loaded_table;
struct device *dev = &rproc->dev;
- int ret, tablesz;
-
- /* look for the resource table */
- table = rproc_find_rsc_table(rproc, fw, &tablesz);
- if (!table) {
- dev_err(dev, "Resource table look up failed\n");
- return -EINVAL;
- }
+ int ret;
/* load the ELF segments to memory */
ret = rproc_load_segments(rproc, fw);
@@ -877,7 +873,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)
*/
loaded_table = rproc_find_loaded_rsc_table(rproc, fw);
if (loaded_table) {
- memcpy(loaded_table, rproc->cached_table, tablesz);
+ memcpy(loaded_table, rproc->cached_table, rproc->table_sz);
rproc->table_ptr = loaded_table;
}
@@ -911,8 +907,7 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
{
struct device *dev = &rproc->dev;
const char *name = rproc->firmware;
- struct resource_table *table;
- int ret, tablesz;
+ int ret;
ret = rproc_fw_sanity_check(rproc, fw);
if (ret)
@@ -931,32 +926,17 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
}
rproc->bootaddr = rproc_get_boot_addr(rproc, fw);
- ret = -EINVAL;
- /* look for the resource table */
- table = rproc_find_rsc_table(rproc, fw, &tablesz);
- if (!table) {
- dev_err(dev, "Failed to find resource table\n");
- goto clean_up;
- }
-
- /*
- * Create a copy of the resource table. When a virtio device starts
- * and calls vring_new_virtqueue() the address of the allocated vring
- * will be stored in the cached_table. Before the device is started,
- * cached_table will be copied into device memory.
- */
- rproc->cached_table = kmemdup(table, tablesz, GFP_KERNEL);
- if (!rproc->cached_table)
- goto clean_up;
-
- rproc->table_ptr = rproc->cached_table;
+ /* load resource table */
+ ret = rproc_load_rsc_table(rproc, fw);
+ if (ret)
+ goto disable_iommu;
/* reset max_notifyid */
rproc->max_notifyid = -1;
/* handle fw resources which are required to boot rproc */
- ret = rproc_handle_resources(rproc, tablesz, rproc_loading_handlers);
+ ret = rproc_handle_resources(rproc, rproc_loading_handlers);
if (ret) {
dev_err(dev, "Failed to process resources: %d\n", ret);
goto clean_up_resources;
@@ -970,11 +950,10 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw)
clean_up_resources:
rproc_resource_cleanup(rproc);
-clean_up:
kfree(rproc->cached_table);
rproc->cached_table = NULL;
rproc->table_ptr = NULL;
-
+disable_iommu:
rproc_disable_iommu(rproc);
return ret;
}
@@ -1021,6 +1000,9 @@ static int rproc_stop(struct rproc *rproc)
/* remove any subdevices for the remote processor */
rproc_remove_subdevices(rproc);
+ /* the installed resource table is no longer accessible */
+ rproc->table_ptr = rproc->cached_table;
+
/* power off the remote processor */
ret = rproc->ops->stop(rproc);
if (ret) {
@@ -1028,10 +1010,6 @@ static int rproc_stop(struct rproc *rproc)
return ret;
}
- /* if in crash state, unlock crash handler */
- if (rproc->state == RPROC_CRASHED)
- complete_all(&rproc->crash_comp);
-
rproc->state = RPROC_OFFLINE;
dev_info(dev, "stopped remote processor %s\n", rproc->name);
@@ -1057,8 +1035,6 @@ int rproc_trigger_recovery(struct rproc *rproc)
dev_err(dev, "recovering %s\n", rproc->name);
- init_completion(&rproc->crash_comp);
-
ret = mutex_lock_interruptible(&rproc->lock);
if (ret)
return ret;
@@ -1067,9 +1043,6 @@ int rproc_trigger_recovery(struct rproc *rproc)
if (ret)
goto unlock_mutex;
- /* wait until there is no more rproc users */
- wait_for_completion(&rproc->crash_comp);
-
/* load firmware */
ret = request_firmware(&firmware_p, rproc->firmware, dev);
if (ret < 0) {
@@ -1357,6 +1330,7 @@ static void rproc_type_release(struct device *dev)
ida_simple_remove(&rproc_dev_index, rproc->index);
kfree(rproc->firmware);
+ kfree(rproc->ops);
kfree(rproc);
}
@@ -1421,9 +1395,15 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
return NULL;
}
+ rproc->ops = kmemdup(ops, sizeof(*ops), GFP_KERNEL);
+ if (!rproc->ops) {
+ kfree(p);
+ kfree(rproc);
+ return NULL;
+ }
+
rproc->firmware = p;
rproc->name = name;
- rproc->ops = ops;
rproc->priv = &rproc[1];
rproc->auto_boot = true;
@@ -1445,8 +1425,14 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
atomic_set(&rproc->power, 0);
- /* Set ELF as the default fw_ops handler */
- rproc->fw_ops = &rproc_elf_fw_ops;
+ /* Default to ELF loader if no load function is specified */
+ if (!rproc->ops->load) {
+ rproc->ops->load = rproc_elf_load_segments;
+ rproc->ops->load_rsc_table = rproc_elf_load_rsc_table;
+ rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table;
+ rproc->ops->sanity_check = rproc_elf_sanity_check;
+ rproc->ops->get_boot_addr = rproc_elf_get_boot_addr;
+ }
mutex_init(&rproc->lock);
@@ -1459,7 +1445,6 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
INIT_LIST_HEAD(&rproc->subdevs);
INIT_WORK(&rproc->crash_handler, rproc_crash_handler_work);
- init_completion(&rproc->crash_comp);
rproc->state = RPROC_OFFLINE;
diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
index c523983a4aec..b17d72ec8603 100644
--- a/drivers/remoteproc/remoteproc_elf_loader.c
+++ b/drivers/remoteproc/remoteproc_elf_loader.c
@@ -39,8 +39,7 @@
*
* Make sure this fw image is sane.
*/
-static int
-rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
+int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
{
const char *name = rproc->firmware;
struct device *dev = &rproc->dev;
@@ -98,6 +97,7 @@ rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
return 0;
}
+EXPORT_SYMBOL(rproc_elf_sanity_check);
/**
* rproc_elf_get_boot_addr() - Get rproc's boot address.
@@ -110,13 +110,13 @@ rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
* Note that the boot address is not a configurable property of all remote
* processors. Some will always boot at a specific hard-coded address.
*/
-static
u32 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
{
struct elf32_hdr *ehdr = (struct elf32_hdr *)fw->data;
return ehdr->e_entry;
}
+EXPORT_SYMBOL(rproc_elf_get_boot_addr);
/**
* rproc_elf_load_segments() - load firmware segments to memory
@@ -142,8 +142,7 @@ u32 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
* directly allocate memory for every segment/resource. This is not yet
* supported, though.
*/
-static int
-rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
+int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
{
struct device *dev = &rproc->dev;
struct elf32_hdr *ehdr;
@@ -207,6 +206,7 @@ rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw)
return ret;
}
+EXPORT_SYMBOL(rproc_elf_load_segments);
static struct elf32_shdr *
find_table(struct device *dev, struct elf32_hdr *ehdr, size_t fw_size)
@@ -268,41 +268,49 @@ find_table(struct device *dev, struct elf32_hdr *ehdr, size_t fw_size)
}
/**
- * rproc_elf_find_rsc_table() - find the resource table
+ * rproc_elf_load_rsc_table() - load the resource table
* @rproc: the rproc handle
* @fw: the ELF firmware image
- * @tablesz: place holder for providing back the table size
*
* This function finds the resource table inside the remote processor's
- * firmware. It is used both upon the registration of @rproc (in order
- * to look for and register the supported virito devices), and when the
- * @rproc is booted.
+ * firmware, load it into the @cached_table and update @table_ptr.
*
- * Returns the pointer to the resource table if it is found, and write its
- * size into @tablesz. If a valid table isn't found, NULL is returned
- * (and @tablesz isn't set).
+ * Return: 0 on success, negative errno on failure.
*/
-static struct resource_table *
-rproc_elf_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
- int *tablesz)
+int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw)
{
struct elf32_hdr *ehdr;
struct elf32_shdr *shdr;
struct device *dev = &rproc->dev;
struct resource_table *table = NULL;
const u8 *elf_data = fw->data;
+ size_t tablesz;
ehdr = (struct elf32_hdr *)elf_data;
shdr = find_table(dev, ehdr, fw->size);
if (!shdr)
- return NULL;
+ return -EINVAL;
table = (struct resource_table *)(elf_data + shdr->sh_offset);
- *tablesz = shdr->sh_size;
+ tablesz = shdr->sh_size;
+
+ /*
+ * Create a copy of the resource table. When a virtio device starts
+ * and calls vring_new_virtqueue() the address of the allocated vring
+ * will be stored in the cached_table. Before the device is started,
+ * cached_table will be copied into device memory.
+ */
+ rproc->cached_table = kmemdup(table, tablesz, GFP_KERNEL);
+ if (!rproc->cached_table)
+ return -ENOMEM;
- return table;
+ rproc->table_ptr = rproc->cached_table;
+ rproc->table_sz = tablesz;
+
+ return 0;
}
+EXPORT_SYMBOL(rproc_elf_load_rsc_table);
/**
* rproc_elf_find_loaded_rsc_table() - find the loaded resource table
@@ -315,8 +323,8 @@ rproc_elf_find_rsc_table(struct rproc *rproc, const struct firmware *fw,
* Returns the pointer to the resource table if it is found or NULL otherwise.
* If the table wasn't loaded yet the result is unspecified.
*/
-static struct resource_table *
-rproc_elf_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *fw)
+struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
+ const struct firmware *fw)
{
struct elf32_hdr *ehdr = (struct elf32_hdr *)fw->data;
struct elf32_shdr *shdr;
@@ -327,11 +335,4 @@ rproc_elf_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *fw)
return rproc_da_to_va(rproc, shdr->sh_addr, shdr->sh_size);
}
-
-const struct rproc_fw_ops rproc_elf_fw_ops = {
- .load = rproc_elf_load_segments,
- .find_rsc_table = rproc_elf_find_rsc_table,
- .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
- .sanity_check = rproc_elf_sanity_check,
- .get_boot_addr = rproc_elf_get_boot_addr
-};
+EXPORT_SYMBOL(rproc_elf_find_loaded_rsc_table);
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index c1077bec5d0b..55a2950c5cb7 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -25,26 +25,6 @@
struct rproc;
-/**
- * struct rproc_fw_ops - firmware format specific operations.
- * @find_rsc_table: find the resource table inside the firmware image
- * @find_loaded_rsc_table: find the loaded resouce table
- * @load: load firmeware to memory, where the remote processor
- * expects to find it
- * @sanity_check: sanity check the fw image
- * @get_boot_addr: get boot address to entry point specified in firmware
- */
-struct rproc_fw_ops {
- struct resource_table *(*find_rsc_table)(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz);
- struct resource_table *(*find_loaded_rsc_table)(
- struct rproc *rproc, const struct firmware *fw);
- int (*load)(struct rproc *rproc, const struct firmware *fw);
- int (*sanity_check)(struct rproc *rproc, const struct firmware *fw);
- u32 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw);
-};
-
/* from remoteproc_core.c */
void rproc_release(struct kref *kref);
irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
@@ -74,11 +54,18 @@ int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
int rproc_trigger_recovery(struct rproc *rproc);
+int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
+u32 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
+int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
+int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
+struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
+ const struct firmware *fw);
+
static inline
int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
{
- if (rproc->fw_ops->sanity_check)
- return rproc->fw_ops->sanity_check(rproc, fw);
+ if (rproc->ops->sanity_check)
+ return rproc->ops->sanity_check(rproc, fw);
return 0;
}
@@ -86,8 +73,8 @@ int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
static inline
u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
{
- if (rproc->fw_ops->get_boot_addr)
- return rproc->fw_ops->get_boot_addr(rproc, fw);
+ if (rproc->ops->get_boot_addr)
+ return rproc->ops->get_boot_addr(rproc, fw);
return 0;
}
@@ -95,33 +82,29 @@ u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
static inline
int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
{
- if (rproc->fw_ops->load)
- return rproc->fw_ops->load(rproc, fw);
+ if (rproc->ops->load)
+ return rproc->ops->load(rproc, fw);
return -EINVAL;
}
-static inline
-struct resource_table *rproc_find_rsc_table(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz)
+static inline int rproc_load_rsc_table(struct rproc *rproc,
+ const struct firmware *fw)
{
- if (rproc->fw_ops->find_rsc_table)
- return rproc->fw_ops->find_rsc_table(rproc, fw, tablesz);
+ if (rproc->ops->load_rsc_table)
+ return rproc->ops->load_rsc_table(rproc, fw);
- return NULL;
+ return 0;
}
static inline
struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
const struct firmware *fw)
{
- if (rproc->fw_ops->find_loaded_rsc_table)
- return rproc->fw_ops->find_loaded_rsc_table(rproc, fw);
+ if (rproc->ops->find_loaded_rsc_table)
+ return rproc->ops->find_loaded_rsc_table(rproc, fw);
return NULL;
}
-extern const struct rproc_fw_ops rproc_elf_fw_ops;
-
#endif /* REMOTEPROC_INTERNAL_H */
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index 294634836b32..b0633fd4c041 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -327,7 +327,7 @@ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id)
ret = register_virtio_device(vdev);
if (ret) {
- put_device(&rproc->dev);
+ put_device(&vdev->dev);
dev_err(dev, "failed to register vdev: %d\n", ret);
goto out;
}
diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
index 6cfd862f945b..1ffb1f0c43d6 100644
--- a/drivers/remoteproc/st_slim_rproc.c
+++ b/drivers/remoteproc/st_slim_rproc.c
@@ -204,27 +204,9 @@ static const struct rproc_ops slim_rproc_ops = {
.start = slim_rproc_start,
.stop = slim_rproc_stop,
.da_to_va = slim_rproc_da_to_va,
-};
-
-/*
- * Firmware handler operations: sanity, boot address, load ...
- */
-
-static struct resource_table empty_rsc_tbl = {
- .ver = 1,
- .num = 0,
-};
-
-static struct resource_table *slim_rproc_find_rsc_table(struct rproc *rproc,
- const struct firmware *fw,
- int *tablesz)
-{
- *tablesz = sizeof(empty_rsc_tbl);
- return &empty_rsc_tbl;
-}
-
-static struct rproc_fw_ops slim_rproc_fw_ops = {
- .find_rsc_table = slim_rproc_find_rsc_table,
+ .get_boot_addr = rproc_elf_get_boot_addr,
+ .load = rproc_elf_load_segments,
+ .sanity_check = rproc_elf_sanity_check,
};
/**
@@ -249,7 +231,6 @@ struct st_slim_rproc *st_slim_rproc_alloc(struct platform_device *pdev,
struct rproc *rproc;
struct resource *res;
int err, i;
- const struct rproc_fw_ops *elf_ops;
if (!fw_name)
return ERR_PTR(-EINVAL);
@@ -267,13 +248,6 @@ struct st_slim_rproc *st_slim_rproc_alloc(struct platform_device *pdev,
slim_rproc = rproc->priv;
slim_rproc->rproc = rproc;
- elf_ops = rproc->fw_ops;
- /* Use some generic elf ops */
- slim_rproc_fw_ops.load = elf_ops->load;
- slim_rproc_fw_ops.sanity_check = elf_ops->sanity_check;
-
- rproc->fw_ops = &slim_rproc_fw_ops;
-
/* get imem and dmem */
for (i = 0; i < ARRAY_SIZE(mem_names); i++) {
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 44e630eb3d94..728d421fffe9 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -324,6 +324,7 @@ struct rproc_mem_entry {
};
struct rproc;
+struct firmware;
/**
* struct rproc_ops - platform-specific device handlers
@@ -331,12 +332,24 @@ struct rproc;
* @stop: power off the device
* @kick: kick a virtqueue (virtqueue id given as a parameter)
* @da_to_va: optional platform hook to perform address translations
+ * @load_rsc_table: load resource table from firmware image
+ * @find_loaded_rsc_table: find the loaded resouce table
+ * @load: load firmeware to memory, where the remote processor
+ * expects to find it
+ * @sanity_check: sanity check the fw image
+ * @get_boot_addr: get boot address to entry point specified in firmware
*/
struct rproc_ops {
int (*start)(struct rproc *rproc);
int (*stop)(struct rproc *rproc);
void (*kick)(struct rproc *rproc, int vqid);
void * (*da_to_va)(struct rproc *rproc, u64 da, int len);
+ int (*load_rsc_table)(struct rproc *rproc, const struct firmware *fw);
+ struct resource_table *(*find_loaded_rsc_table)(
+ struct rproc *rproc, const struct firmware *fw);
+ int (*load)(struct rproc *rproc, const struct firmware *fw);
+ int (*sanity_check)(struct rproc *rproc, const struct firmware *fw);
+ u32 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw);
};
/**
@@ -390,7 +403,6 @@ enum rproc_crash_type {
* @priv: private data which belongs to the platform-specific rproc module
* @ops: platform-specific start/stop rproc handlers
* @dev: virtual device for refcounting and common remoteproc behavior
- * @fw_ops: firmware-specific handlers
* @power: refcount of users who need this rproc powered up
* @state: state of the device
* @lock: lock which protects concurrent manipulations of the rproc
@@ -406,11 +418,11 @@ enum rproc_crash_type {
* @index: index of this rproc device
* @crash_handler: workqueue for handling a crash
* @crash_cnt: crash counter
- * @crash_comp: completion used to sync crash handler and the rproc reload
* @recovery_disabled: flag that state if recovery was disabled
* @max_notifyid: largest allocated notify id.
* @table_ptr: pointer to the resource table in effect
* @cached_table: copy of the resource table
+ * @table_sz: size of @cached_table
* @has_iommu: flag to indicate if remote processor is behind an MMU
*/
struct rproc {
@@ -419,9 +431,8 @@ struct rproc {
const char *name;
char *firmware;
void *priv;
- const struct rproc_ops *ops;
+ struct rproc_ops *ops;
struct device dev;
- const struct rproc_fw_ops *fw_ops;
atomic_t power;
unsigned int state;
struct mutex lock;
@@ -437,11 +448,11 @@ struct rproc {
int index;
struct work_struct crash_handler;
unsigned int crash_cnt;
- struct completion crash_comp;
bool recovery_disabled;
int max_notifyid;
struct resource_table *table_ptr;
struct resource_table *cached_table;
+ size_t table_sz;
bool has_iommu;
bool auto_boot;
};