Starting from the SM8550 SoC, starting the aDSP, cDSP and MPSS will
require loading a separate "Devicetree" firmware.
In order to satisfy the load & authentication order required by the SM8550
SoC, the following is implemented:
- "Devicetree" firmware request & load in dedicated memory
- Q6V5 prepare
- Power Domain & Clocks enable
- "Devicetree" firmware authentication
- Main firmware load in dedicated memory
- Main firmware authentication
- Q6V5 startup
- "Devicetree" firmware metadata release
- Main metadata release
When booting older platforms, the "Devicetree" steps would be
bypassed and the load & authentication order would still be valid.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
---
drivers/remoteproc/qcom_q6v5_pas.c | 134 +++++++++++++++++++++++++++++++++----
1 file changed, 121 insertions(+), 13 deletions(-)
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index f95e0229a6c1..3837a21820d6 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -35,7 +35,9 @@
struct adsp_data {
int crash_reason_smem;
const char *firmware_name;
+ const char *dtb_firmware_name;
int pas_id;
+ int dtb_pas_id;
unsigned int minidump_id;
bool auto_boot;
bool decrypt_shutdown;
@@ -64,19 +66,28 @@ struct qcom_adsp {
int proxy_pd_count;
+ const char *dtb_firmware_name;
int pas_id;
+ int dtb_pas_id;
unsigned int minidump_id;
int crash_reason_smem;
bool decrypt_shutdown;
const char *info_name;
+ const struct firmware *firmware;
+ const struct firmware *dtb_firmware;
+
struct completion start_done;
struct completion stop_done;
phys_addr_t mem_phys;
+ phys_addr_t dtb_mem_phys;
phys_addr_t mem_reloc;
+ phys_addr_t dtb_mem_reloc;
void *mem_region;
+ void *dtb_mem_region;
size_t mem_size;
+ size_t dtb_mem_size;
struct qcom_rproc_glink glink_subdev;
struct qcom_rproc_subdev smd_subdev;
@@ -84,6 +95,7 @@ struct qcom_adsp {
struct qcom_sysmon *sysmon;
struct qcom_scm_pas_metadata pas_metadata;
+ struct qcom_scm_pas_metadata dtb_pas_metadata;
};
static void adsp_minidump(struct rproc *rproc)
@@ -158,6 +170,8 @@ static int adsp_unprepare(struct rproc *rproc)
* here.
*/
qcom_scm_pas_metadata_release(&adsp->pas_metadata);
+ if (adsp->dtb_pas_id)
+ qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata);
return 0;
}
@@ -167,20 +181,40 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw)
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
int ret;
- ret = qcom_mdt_pas_init(adsp->dev, fw, rproc->firmware, adsp->pas_id,
- adsp->mem_phys, &adsp->pas_metadata);
- if (ret)
- return ret;
+ /* Store firmware handle to be used in adsp_start() */
+ adsp->firmware = fw;
- ret = qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, adsp->pas_id,
- adsp->mem_region, adsp->mem_phys, adsp->mem_size,
- &adsp->mem_reloc);
- if (ret)
- return ret;
+ if (adsp->dtb_pas_id) {
+ ret = request_firmware(&adsp->dtb_firmware, adsp->dtb_firmware_name, adsp->dev);
+ if (ret) {
+ dev_err(adsp->dev, "request_firmware failed for %s: %d\n",
+ adsp->dtb_firmware_name, ret);
+ return ret;
+ }
- qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size);
+ ret = qcom_mdt_pas_init(adsp->dev, adsp->dtb_firmware, adsp->dtb_firmware_name,
+ adsp->dtb_pas_id, adsp->dtb_mem_phys,
+ &adsp->dtb_pas_metadata);
+ if (ret)
+ goto release_dtb_firmware;
+
+ ret = qcom_mdt_load_no_init(adsp->dev, adsp->dtb_firmware, adsp->dtb_firmware_name,
+ adsp->dtb_pas_id, adsp->dtb_mem_region,
+ adsp->dtb_mem_phys, adsp->dtb_mem_size,
+ &adsp->dtb_mem_reloc);
+ if (ret)
+ goto release_dtb_metadata;
+ }
return 0;
+
+release_dtb_metadata:
+ qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata);
+
+release_dtb_firmware:
+ release_firmware(adsp->dtb_firmware);
+
+ return ret;
}
static int adsp_start(struct rproc *rproc)
@@ -216,24 +250,55 @@ static int adsp_start(struct rproc *rproc)
goto disable_cx_supply;
}
+ if (adsp->dtb_pas_id) {
+ ret = qcom_scm_pas_auth_and_reset(adsp->dtb_pas_id);
+ if (ret) {
+ dev_err(adsp->dev,
+ "failed to authenticate dtb image and release reset\n");
+ goto disable_px_supply;
+ }
+ }
+
+ ret = qcom_mdt_pas_init(adsp->dev, adsp->firmware, rproc->firmware, adsp->pas_id,
+ adsp->mem_phys, &adsp->pas_metadata);
+ if (ret)
+ goto disable_px_supply;
+
+ ret = qcom_mdt_load_no_init(adsp->dev, adsp->firmware, rproc->firmware, adsp->pas_id,
+ adsp->mem_region, adsp->mem_phys, adsp->mem_size,
+ &adsp->mem_reloc);
+ if (ret)
+ goto release_pas_metadata;
+
+ qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size);
+
ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
if (ret) {
dev_err(adsp->dev,
"failed to authenticate image and release reset\n");
- goto disable_px_supply;
+ goto release_pas_metadata;
}
ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000));
if (ret == -ETIMEDOUT) {
dev_err(adsp->dev, "start timed out\n");
qcom_scm_pas_shutdown(adsp->pas_id);
- goto disable_px_supply;
+ goto release_pas_metadata;
}
qcom_scm_pas_metadata_release(&adsp->pas_metadata);
+ if (adsp->dtb_pas_id)
+ qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata);
+
+ /* Remove pointer to the loaded firmware, only valid in adsp_load() & adsp_start() */
+ adsp->firmware = NULL;
return 0;
+release_pas_metadata:
+ qcom_scm_pas_metadata_release(&adsp->pas_metadata);
+ if (adsp->dtb_pas_id)
+ qcom_scm_pas_metadata_release(&adsp->dtb_pas_metadata);
disable_px_supply:
if (adsp->px_supply)
regulator_disable(adsp->px_supply);
@@ -249,6 +314,9 @@ static int adsp_start(struct rproc *rproc)
disable_irqs:
qcom_q6v5_unprepare(&adsp->q6v5);
+ /* Remove pointer to the loaded firmware, only valid in adsp_load() & adsp_start() */
+ adsp->firmware = NULL;
+
return ret;
}
@@ -282,6 +350,12 @@ static int adsp_stop(struct rproc *rproc)
if (ret)
dev_err(adsp->dev, "failed to shutdown: %d\n", ret);
+ if (adsp->dtb_pas_id) {
+ ret = qcom_scm_pas_shutdown(adsp->dtb_pas_id);
+ if (ret)
+ dev_err(adsp->dev, "failed to shutdown dtb: %d\n", ret);
+ }
+
handover = qcom_q6v5_unprepare(&adsp->q6v5);
if (handover)
qcom_pas_handover(&adsp->q6v5);
@@ -458,6 +532,28 @@ static int adsp_alloc_memory_region(struct qcom_adsp *adsp)
return -EBUSY;
}
+ if (!adsp->dtb_pas_id)
+ return 0;
+
+ node = of_parse_phandle(adsp->dev->of_node, "memory-region", 1);
+ if (!node) {
+ dev_err(adsp->dev, "no dtb memory-region specified\n");
+ return -EINVAL;
+ }
+
+ ret = of_address_to_resource(node, 0, &r);
+ if (ret)
+ return ret;
+
+ adsp->dtb_mem_phys = adsp->dtb_mem_reloc = r.start;
+ adsp->dtb_mem_size = resource_size(&r);
+ adsp->dtb_mem_region = devm_ioremap_wc(adsp->dev, adsp->dtb_mem_phys, adsp->dtb_mem_size);
+ if (!adsp->dtb_mem_region) {
+ dev_err(adsp->dev, "unable to map dtb memory region: %pa+%zx\n",
+ &r.start, adsp->dtb_mem_size);
+ return -EBUSY;
+ }
+
return 0;
}
@@ -466,7 +562,7 @@ static int adsp_probe(struct platform_device *pdev)
const struct adsp_data *desc;
struct qcom_adsp *adsp;
struct rproc *rproc;
- const char *fw_name;
+ const char *fw_name, *dtb_fw_name = NULL;
const struct rproc_ops *ops = &adsp_ops;
int ret;
@@ -483,6 +579,14 @@ static int adsp_probe(struct platform_device *pdev)
if (ret < 0 && ret != -EINVAL)
return ret;
+ if (desc->dtb_firmware_name) {
+ dtb_fw_name = desc->dtb_firmware_name;
+ ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name", 1,
+ &dtb_fw_name);
+ if (ret < 0 && ret != -EINVAL)
+ return ret;
+ }
+
if (desc->minidump_id)
ops = &adsp_minidump_ops;
@@ -503,6 +607,10 @@ static int adsp_probe(struct platform_device *pdev)
adsp->pas_id = desc->pas_id;
adsp->info_name = desc->sysmon_name;
adsp->decrypt_shutdown = desc->decrypt_shutdown;
+ if (dtb_fw_name) {
+ adsp->dtb_firmware_name = dtb_fw_name;
+ adsp->dtb_pas_id = desc->dtb_pas_id;
+ }
platform_set_drvdata(pdev, adsp);
ret = device_init_wakeup(adsp->dev, true);
--
2.34.1
