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remoteproc updates for v4.19

Browse source 
This adds support for pre-start and post-shutdown hooks for remoteproc
 subdevices, refactors the Qualcomm Hexagon support to allow reuse
 between several drivers, makes authentication in the MDT file loader
 optional, migrates a few format strings to use %pK and migrates the
 Davinci driver to use the reset framework.
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Merge tag 'rproc-v4.19' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This adds support for pre-start and post-shutdown hooks for remoteproc
  subdevices, refactors the Qualcomm Hexagon support to allow reuse
  between several drivers, makes authentication in the MDT file loader
  optional, migrates a few format strings to use %pK and migrates the
  Davinci driver to use the reset framework"

* tag 'rproc-v4.19' of git://github.com/andersson/remoteproc:
  remoteproc/davinci: use the reset framework
  remoteproc/davinci: Mark error recovery as disabled
  remoteproc: st_slim: replace "%p" with "%pK"
  remoteproc: replace "%p" with "%pK"
  remoteproc: qcom: fix Q6V5_WCSS dependencies
  remoteproc: Reset table_ptr in rproc_start() failure paths
  remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvote
  remoteproc: qcom q6v5: fix modular build
  remoteproc: Introduce prepare and unprepare for subdevices
  remoteproc: rename subdev probe and remove functions
  remoteproc: Make client initialize ops in rproc_subdev
  remoteproc: Make start and stop in subdev optional
  remoteproc: Rename subdev functions to start/stop
  remoteproc: qcom: Introduce Hexagon V5 based WCSS driver
  remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
  remoteproc: qcom: adsp: Use common q6v5 helpers
  remoteproc: q6v5: Extract common resource handling
  remoteproc: qcom: mdt_loader: Make the firmware authentication optional
This commit is contained in:
Linus Torvalds 2018-08-18 16:42:04 -07:00
commit c54fc8658b
18 changed files with 1188 additions and 361 deletions
Download patch file Download diff file Expand all files Collapse all files

87
drivers/soc/qcom/mdt_loader.c
View file

@ -74,23 +74,10 @@ ssize_t qcom_mdt_get_size(const struct firmware *fw)
}
EXPORT_SYMBOL_GPL(qcom_mdt_get_size);
/**
* qcom_mdt_load() - load the firmware which header is loaded as fw
* @dev: device handle to associate resources with
* @fw: firmware object for the mdt file
* @firmware: name of the firmware, for construction of segment file names
* @pas_id: PAS identifier
* @mem_region: allocated memory region to load firmware into
* @mem_phys: physical address of allocated memory region
* @mem_size: size of the allocated memory region
* @reloc_base: adjusted physical address after relocation
*
* Returns 0 on success, negative errno otherwise.
*/
int qcom_mdt_load(struct device *dev, const struct firmware *fw,
const char *firmware, int pas_id, void *mem_region,
phys_addr_t mem_phys, size_t mem_size,
phys_addr_t *reloc_base)
static int __qcom_mdt_load(struct device *dev, const struct firmware *fw,
const char *firmware, int pas_id, void *mem_region,
phys_addr_t mem_phys, size_t mem_size,
phys_addr_t *reloc_base, bool pas_init)
{
const struct elf32_phdr *phdrs;
const struct elf32_phdr *phdr;
@ -121,10 +108,12 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
if (!fw_name)
return -ENOMEM;
ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
if (ret) {
dev_err(dev, "invalid firmware metadata\n");
goto out;
if (pas_init) {
ret = qcom_scm_pas_init_image(pas_id, fw->data, fw->size);
if (ret) {
dev_err(dev, "invalid firmware metadata\n");
goto out;
}
}
for (i = 0; i < ehdr->e_phnum; i++) {
@ -144,10 +133,13 @@ int qcom_mdt_load(struct device *dev, const struct firmware *fw,
}
if (relocate) {
ret = qcom_scm_pas_mem_setup(pas_id, mem_phys, max_addr - min_addr);
if (ret) {
dev_err(dev, "unable to setup relocation\n");
goto out;
if (pas_init) {
ret = qcom_scm_pas_mem_setup(pas_id, mem_phys,
max_addr - min_addr);
if (ret) {
dev_err(dev, "unable to setup relocation\n");
goto out;
}
}
/*
@ -202,7 +194,52 @@ out:
return ret;
}
/**
* qcom_mdt_load() - load the firmware which header is loaded as fw
* @dev: device handle to associate resources with
* @fw: firmware object for the mdt file
* @firmware: name of the firmware, for construction of segment file names
* @pas_id: PAS identifier
* @mem_region: allocated memory region to load firmware into
* @mem_phys: physical address of allocated memory region
* @mem_size: size of the allocated memory region
* @reloc_base: adjusted physical address after relocation
*
* Returns 0 on success, negative errno otherwise.
*/
int qcom_mdt_load(struct device *dev, const struct firmware *fw,
const char *firmware, int pas_id, void *mem_region,
phys_addr_t mem_phys, size_t mem_size,
phys_addr_t *reloc_base)
{
return __qcom_mdt_load(dev, fw, firmware, pas_id, mem_region, mem_phys,
mem_size, reloc_base, true);
}
EXPORT_SYMBOL_GPL(qcom_mdt_load);
/**
* qcom_mdt_load_no_init() - load the firmware which header is loaded as fw
* @dev: device handle to associate resources with
* @fw: firmware object for the mdt file
* @firmware: name of the firmware, for construction of segment file names
* @pas_id: PAS identifier
* @mem_region: allocated memory region to load firmware into
* @mem_phys: physical address of allocated memory region
* @mem_size: size of the allocated memory region
* @reloc_base: adjusted physical address after relocation
*
* Returns 0 on success, negative errno otherwise.
*/
int qcom_mdt_load_no_init(struct device *dev, const struct firmware *fw,
const char *firmware, int pas_id,
void *mem_region, phys_addr_t mem_phys,
size_t mem_size, phys_addr_t *reloc_base)
{
return __qcom_mdt_load(dev, fw, firmware, pas_id, mem_region, mem_phys,
mem_size, reloc_base, false);
}
EXPORT_SYMBOL_GPL(qcom_mdt_load_no_init);
MODULE_DESCRIPTION("Firmware parser for Qualcomm MDT format");
MODULE_LICENSE("GPL v2");