Introduce support for filling out the relocation information in IMEM, to aid
post mortem debug tools to locate the various remoteprocs.
Bjorn Andersson (5):
dt-bindings: remoteproc: Add Qualcomm PIL info binding
remoteproc: qcom: Introduce helper to store pil info in IMEM
remoteproc: qcom: Update PIL relocation info on load
arm64: dts: qcom: qcs404: Add IMEM and PIL info region
arm64: dts: qcom: sdm845: Add IMEM and PIL info region
.../bindings/remoteproc/qcom,pil-info.yaml | 44 +++++++
arch/arm64/boot/dts/qcom/qcs404.dtsi | 15 +++
arch/arm64/boot/dts/qcom/sdm845.dtsi | 15 +++
drivers/remoteproc/Kconfig | 6 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/qcom_pil_info.c | 124 ++++++++++++++++++
drivers/remoteproc/qcom_pil_info.h | 7 +
drivers/remoteproc/qcom_q6v5_adsp.c | 16 ++-
drivers/remoteproc/qcom_q6v5_mss.c | 3 +
drivers/remoteproc/qcom_q6v5_pas.c | 15 ++-
drivers/remoteproc/qcom_q6v5_wcss.c | 14 +-
drivers/remoteproc/qcom_wcnss.c | 14 +-
12 files changed, 262 insertions(+), 12 deletions(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
create mode 100644 drivers/remoteproc/qcom_pil_info.c
create mode 100644 drivers/remoteproc/qcom_pil_info.h
--
2.26.2
Add a simple-mfd representing IMEM on SDM845 and define the PIL
relocation info region, so that post mortem tools will be able to locate
the loaded remoteprocs.
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
---
Changes since v4:
- imem is no longer compatible with "syscon"
arch/arm64/boot/dts/qcom/sdm845.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 7cce6f1b7c9e..1abbbe7a43a0 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -3716,6 +3716,21 @@ spmi_bus: spmi@c440000 {
cell-index = <0>;
};
+ imem@146bf000 {
+ compatible = "simple-mfd";
+ reg = <0 0x146bf000 0 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0 0 0x146bf000 0x1000>;
+
+ pil-reloc@94c {
+ compatible = "qcom,pil-reloc-info";
+ reg = <0x94c 0xc8>;
+ };
+ };
+
apps_smmu: iommu@15000000 {
compatible = "qcom,sdm845-smmu-500", "arm,mmu-500";
reg = <0 0x15000000 0 0x80000>;
--
2.26.2
Update the PIL relocation information in IMEM with information about
where the firmware for various remoteprocs are loaded.
Signed-off-by: Bjorn Andersson <[email protected]>
---
Changes since v4:
- Dropped unnecessary comment about ignoring return value.
drivers/remoteproc/Kconfig | 3 +++
drivers/remoteproc/qcom_q6v5_adsp.c | 16 +++++++++++++---
drivers/remoteproc/qcom_q6v5_mss.c | 3 +++
drivers/remoteproc/qcom_q6v5_pas.c | 15 ++++++++++++---
drivers/remoteproc/qcom_q6v5_wcss.c | 14 +++++++++++---
drivers/remoteproc/qcom_wcnss.c | 14 +++++++++++---
6 files changed, 53 insertions(+), 12 deletions(-)
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 8088ca4dd6dc..6bd42a411ca8 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -126,6 +126,7 @@ config QCOM_Q6V5_ADSP
depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
depends on QCOM_SYSMON || QCOM_SYSMON=n
select MFD_SYSCON
+ select QCOM_PIL_INFO
select QCOM_MDT_LOADER
select QCOM_Q6V5_COMMON
select QCOM_RPROC_COMMON
@@ -158,6 +159,7 @@ config QCOM_Q6V5_PAS
depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
depends on QCOM_SYSMON || QCOM_SYSMON=n
select MFD_SYSCON
+ select QCOM_PIL_INFO
select QCOM_MDT_LOADER
select QCOM_Q6V5_COMMON
select QCOM_RPROC_COMMON
@@ -209,6 +211,7 @@ config QCOM_WCNSS_PIL
depends on QCOM_SMEM
depends on QCOM_SYSMON || QCOM_SYSMON=n
select QCOM_MDT_LOADER
+ select QCOM_PIL_INFO
select QCOM_RPROC_COMMON
select QCOM_SCM
help
diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index d2a2574dcf35..c539e89664cb 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -26,6 +26,7 @@
#include <linux/soc/qcom/smem_state.h>
#include "qcom_common.h"
+#include "qcom_pil_info.h"
#include "qcom_q6v5.h"
#include "remoteproc_internal.h"
@@ -82,6 +83,7 @@ struct qcom_adsp {
unsigned int halt_lpass;
int crash_reason_smem;
+ const char *info_name;
struct completion start_done;
struct completion stop_done;
@@ -164,10 +166,17 @@ static int qcom_adsp_shutdown(struct qcom_adsp *adsp)
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_load_no_init(adsp->dev, fw, rproc->firmware, 0,
+ adsp->mem_region, adsp->mem_phys,
+ adsp->mem_size, &adsp->mem_reloc);
+ if (ret)
+ return ret;
+
+ qcom_pil_info_store(adsp->info_name, adsp->mem_reloc, adsp->mem_size);
- return qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, 0,
- adsp->mem_region, adsp->mem_phys, adsp->mem_size,
- &adsp->mem_reloc);
+ return 0;
}
static int adsp_start(struct rproc *rproc)
@@ -436,6 +445,7 @@ static int adsp_probe(struct platform_device *pdev)
adsp = (struct qcom_adsp *)rproc->priv;
adsp->dev = &pdev->dev;
adsp->rproc = rproc;
+ adsp->info_name = desc->sysmon_name;
platform_set_drvdata(pdev, adsp);
ret = adsp_alloc_memory_region(adsp);
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index c4936f4d1e80..fdbcae11ae64 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -29,6 +29,7 @@
#include "remoteproc_internal.h"
#include "qcom_common.h"
+#include "qcom_pil_info.h"
#include "qcom_q6v5.h"
#include <linux/qcom_scm.h>
@@ -1221,6 +1222,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
else if (ret < 0)
dev_err(qproc->dev, "MPSS authentication failed: %d\n", ret);
+ qcom_pil_info_store("modem", mpss_reloc, qproc->mpss_size);
+
release_firmware:
release_firmware(fw);
out:
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 3bb69f58e086..84cb19231c35 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -25,6 +25,7 @@
#include <linux/soc/qcom/smem_state.h>
#include "qcom_common.h"
+#include "qcom_pil_info.h"
#include "qcom_q6v5.h"
#include "remoteproc_internal.h"
@@ -64,6 +65,7 @@ struct qcom_adsp {
int pas_id;
int crash_reason_smem;
bool has_aggre2_clk;
+ const char *info_name;
struct completion start_done;
struct completion stop_done;
@@ -117,11 +119,17 @@ static void adsp_pds_disable(struct qcom_adsp *adsp, struct device **pds,
static int adsp_load(struct rproc *rproc, const struct firmware *fw)
{
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
+ int ret;
- return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
- adsp->mem_region, adsp->mem_phys, adsp->mem_size,
- &adsp->mem_reloc);
+ ret = qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
+ adsp->mem_region, adsp->mem_phys, adsp->mem_size,
+ &adsp->mem_reloc);
+ if (ret)
+ return ret;
+ qcom_pil_info_store(adsp->info_name, adsp->mem_reloc, adsp->mem_size);
+
+ return 0;
}
static int adsp_start(struct rproc *rproc)
@@ -405,6 +413,7 @@ static int adsp_probe(struct platform_device *pdev)
adsp->rproc = rproc;
adsp->pas_id = desc->pas_id;
adsp->has_aggre2_clk = desc->has_aggre2_clk;
+ adsp->info_name = desc->sysmon_name;
platform_set_drvdata(pdev, adsp);
ret = adsp_alloc_memory_region(adsp);
diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index f1924b740a10..962e37a86b8b 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -421,10 +421,18 @@ static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, size_t len)
static int q6v5_wcss_load(struct rproc *rproc, const struct firmware *fw)
{
struct q6v5_wcss *wcss = rproc->priv;
+ int ret;
+
+ ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware,
+ 0, wcss->mem_region, wcss->mem_phys,
+ wcss->mem_size, &wcss->mem_reloc);
+ if (ret)
+ return ret;
+
+ /* Failures only affect post mortem debugging, so ignore return value */
+ qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size);
- return qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware,
- 0, wcss->mem_region, wcss->mem_phys,
- wcss->mem_size, &wcss->mem_reloc);
+ return ret;
}
static const struct rproc_ops q6v5_wcss_ops = {
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index 5d65e1a9329a..229482b3231f 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -27,6 +27,7 @@
#include "qcom_common.h"
#include "remoteproc_internal.h"
+#include "qcom_pil_info.h"
#include "qcom_wcnss.h"
#define WCNSS_CRASH_REASON_SMEM 422
@@ -145,10 +146,17 @@ void qcom_wcnss_assign_iris(struct qcom_wcnss *wcnss,
static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
{
struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
+ int ret;
+
+ ret = qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
+ wcnss->mem_region, wcnss->mem_phys,
+ wcnss->mem_size, &wcnss->mem_reloc);
+ if (ret)
+ return ret;
+
+ qcom_pil_info_store("wcnss", wcnss->mem_reloc, wcnss->mem_size);
- return qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
- wcnss->mem_region, wcnss->mem_phys,
- wcnss->mem_size, &wcnss->mem_reloc);
+ return 0;
}
static void wcnss_indicate_nv_download(struct qcom_wcnss *wcnss)
--
2.26.2
Add a simple-mfd representing IMEM on QCS404 and define the PIL
relocation info region, so that post mortem tools will be able to locate
the loaded remoteprocs.
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
---
Changes since v4:
- imem is no longer compatible with "syscon"
arch/arm64/boot/dts/qcom/qcs404.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index c685a1664810..b654b802e95c 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
@@ -1097,6 +1097,21 @@ blsp2_spi0: spi@7af5000 {
status = "disabled";
};
+ imem@8600000 {
+ compatible = "simple-mfd";
+ reg = <0x08600000 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0 0x08600000 0x1000>;
+
+ pil-reloc@94c {
+ compatible = "qcom,pil-reloc-info";
+ reg = <0x94c 0xc8>;
+ };
+ };
+
intc: interrupt-controller@b000000 {
compatible = "qcom,msm-qgic2";
interrupt-controller;
--
2.26.2
A region in IMEM is used to communicate load addresses of remoteproc to
post mortem debug tools. Implement a helper function that can be used to
store this information in order to enable these tools to process
collected ramdumps.
Signed-off-by: Bjorn Andersson <[email protected]>
---
Changes since v4:
- Replaced platform_driver by just a single helper function
- Lazy initialization of mapping
- Cleaned up search loop
- Replaced regmap access of IMEM with ioremap and normal accessors
drivers/remoteproc/Kconfig | 3 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/qcom_pil_info.c | 124 +++++++++++++++++++++++++++++
drivers/remoteproc/qcom_pil_info.h | 7 ++
4 files changed, 135 insertions(+)
create mode 100644 drivers/remoteproc/qcom_pil_info.c
create mode 100644 drivers/remoteproc/qcom_pil_info.h
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index fbaed079b299..8088ca4dd6dc 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -107,6 +107,9 @@ config KEYSTONE_REMOTEPROC
It's safe to say N here if you're not interested in the Keystone
DSPs or just want to use a bare minimum kernel.
+config QCOM_PIL_INFO
+ tristate
+
config QCOM_RPROC_COMMON
tristate
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 0effd3825035..cc0f631adb3b 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o
obj-$(CONFIG_WKUP_M3_RPROC) += wkup_m3_rproc.o
obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
obj-$(CONFIG_KEYSTONE_REMOTEPROC) += keystone_remoteproc.o
+obj-$(CONFIG_QCOM_PIL_INFO) += qcom_pil_info.o
obj-$(CONFIG_QCOM_RPROC_COMMON) += qcom_common.o
obj-$(CONFIG_QCOM_Q6V5_COMMON) += qcom_q6v5.o
obj-$(CONFIG_QCOM_Q6V5_ADSP) += qcom_q6v5_adsp.o
diff --git a/drivers/remoteproc/qcom_pil_info.c b/drivers/remoteproc/qcom_pil_info.c
new file mode 100644
index 000000000000..0785c7cde2d3
--- /dev/null
+++ b/drivers/remoteproc/qcom_pil_info.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2019-2020 Linaro Ltd.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_address.h>
+
+#define PIL_RELOC_NAME_LEN 8
+
+struct pil_reloc_entry {
+ char name[PIL_RELOC_NAME_LEN];
+ __le64 base;
+ __le32 size;
+} __packed;
+
+struct pil_reloc {
+ struct device *dev;
+ void __iomem *base;
+ size_t num_entries;
+};
+
+static struct pil_reloc _reloc __read_mostly;
+static DEFINE_MUTEX(reloc_mutex);
+
+static int qcom_pil_info_init(void)
+{
+ struct device_node *np;
+ struct resource imem;
+ void __iomem *base;
+ int ret;
+
+ /* Already initialized? */
+ if (_reloc.base)
+ return 0;
+
+ np = of_find_compatible_node(NULL, NULL, "qcom,pil-reloc-info");
+ if (!np)
+ return -ENOENT;
+
+ ret = of_address_to_resource(np, 0, &imem);
+ of_node_put(np);
+ if (ret < 0)
+ return ret;
+
+ base = ioremap(imem.start, resource_size(&imem));
+ if (!base) {
+ pr_err("failed to map PIL relocation info region\n");
+ return -ENOMEM;
+ }
+
+ memset_io(base, 0, resource_size(&imem));
+
+ _reloc.base = base;
+ _reloc.num_entries = resource_size(&imem) / sizeof(struct pil_reloc_entry);
+
+ return 0;
+}
+
+/**
+ * qcom_pil_info_store() - store PIL information of image in IMEM
+ * @image: name of the image
+ * @base: base address of the loaded image
+ * @size: size of the loaded image
+ *
+ * Return: 0 on success, negative errno on failure
+ */
+int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size)
+{
+ char buf[PIL_RELOC_NAME_LEN];
+ void __iomem *entry;
+ int ret;
+ int i;
+
+ mutex_lock(&reloc_mutex);
+ ret = qcom_pil_info_init();
+ if (ret < 0) {
+ mutex_unlock(&reloc_mutex);
+ return ret;
+ }
+
+ for (i = 0; i < _reloc.num_entries; i++) {
+ entry = _reloc.base + i * sizeof(struct pil_reloc_entry);
+
+ memcpy_fromio(buf, entry, PIL_RELOC_NAME_LEN);
+
+ /*
+ * An empty record means we didn't find it, given that the
+ * records are packed.
+ */
+ if (!buf[0])
+ goto found_unused;
+
+ if (!strncmp(buf, image, PIL_RELOC_NAME_LEN))
+ goto found_existing;
+ }
+
+ pr_warn("insufficient PIL info slots\n");
+ mutex_unlock(&reloc_mutex);
+ return -ENOMEM;
+
+found_unused:
+ memcpy_toio(entry, image, PIL_RELOC_NAME_LEN);
+found_existing:
+ writel(base, entry + offsetof(struct pil_reloc_entry, base));
+ writel(size, entry + offsetof(struct pil_reloc_entry, size));
+ mutex_unlock(&reloc_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_pil_info_store);
+
+static void __exit pil_reloc_exit(void)
+{
+ mutex_lock(&reloc_mutex);
+ iounmap(_reloc.base);
+ _reloc.base = NULL;
+ mutex_unlock(&reloc_mutex);
+}
+module_exit(pil_reloc_exit);
+
+MODULE_DESCRIPTION("Qualcomm PIL relocation info");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/remoteproc/qcom_pil_info.h b/drivers/remoteproc/qcom_pil_info.h
new file mode 100644
index 000000000000..1b89a63ba82f
--- /dev/null
+++ b/drivers/remoteproc/qcom_pil_info.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __QCOM_PIL_INFO_H__
+#define __QCOM_PIL_INFO_H__
+
+int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size);
+
+#endif
--
2.26.2
Add a devicetree binding for the Qualcomm peripheral image loader
relocation information region found in the IMEM.
Reviewed-by: Stephen Boyd <[email protected]>
Signed-off-by: Bjorn Andersson <[email protected]>
---
Changes since v4:
- Fixed reg in example to make it compile
.../bindings/remoteproc/qcom,pil-info.yaml | 44 +++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
new file mode 100644
index 000000000000..87c52316ddbd
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,pil-info.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm peripheral image loader relocation info binding
+
+maintainers:
+ - Bjorn Andersson <[email protected]>
+
+description:
+ The Qualcomm peripheral image loader relocation memory region, in IMEM, is
+ used for communicating remoteproc relocation information to post mortem
+ debugging tools.
+
+properties:
+ compatible:
+ const: qcom,pil-reloc-info
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ imem@146bf000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x146bf000 0x1000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0 0x146bf000 0x1000>;
+
+ pil-reloc@94c {
+ compatible = "qcom,pil-reloc-info";
+ reg = <0x94c 0xc8>;
+ };
+ };
+...
--
2.26.2
On 12-05-20, 22:56, Bjorn Andersson wrote:
> Introduce support for filling out the relocation information in IMEM, to aid
> post mortem debug tools to locate the various remoteprocs.
Reviewed-by: Vinod Koul <[email protected]>
--
~Vinod
Hi Bjorn,
I love your patch! Yet something to improve:
[auto build test ERROR on robh/for-next]
[also build test ERROR on linus/master v5.7-rc5 next-20200514]
[cannot apply to agross-msm/qcom/for-next remoteproc/for-next rpmsg/for-next hwspinlock/for-next]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Bjorn-Andersson/remoteproc-qcom-PIL-info-support/20200514-161851
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <[email protected]>
All errors (new ones prefixed by >>):
drivers/remoteproc/qcom_q6v5_wcss.c: In function 'q6v5_wcss_load':
>> drivers/remoteproc/qcom_q6v5_wcss.c:433:2: error: implicit declaration of function 'qcom_pil_info_store' [-Werror=implicit-function-declaration]
433 | qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size);
| ^~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +/qcom_pil_info_store +433 drivers/remoteproc/qcom_q6v5_wcss.c
420
421 static int q6v5_wcss_load(struct rproc *rproc, const struct firmware *fw)
422 {
423 struct q6v5_wcss *wcss = rproc->priv;
424 int ret;
425
426 ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware,
427 0, wcss->mem_region, wcss->mem_phys,
428 wcss->mem_size, &wcss->mem_reloc);
429 if (ret)
430 return ret;
431
432 /* Failures only affect post mortem debugging, so ignore return value */
> 433 qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size);
434
435 return ret;
436 }
437
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]
On 2020-05-12 22:56, Bjorn Andersson wrote:
> Update the PIL relocation information in IMEM with information about
> where the firmware for various remoteprocs are loaded.
>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
>
> Changes since v4:
> - Dropped unnecessary comment about ignoring return value.
>
> drivers/remoteproc/Kconfig | 3 +++
> drivers/remoteproc/qcom_q6v5_adsp.c | 16 +++++++++++++---
> drivers/remoteproc/qcom_q6v5_mss.c | 3 +++
> drivers/remoteproc/qcom_q6v5_pas.c | 15 ++++++++++++---
> drivers/remoteproc/qcom_q6v5_wcss.c | 14 +++++++++++---
> drivers/remoteproc/qcom_wcnss.c | 14 +++++++++++---
> 6 files changed, 53 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> index 8088ca4dd6dc..6bd42a411ca8 100644
> --- a/drivers/remoteproc/Kconfig
> +++ b/drivers/remoteproc/Kconfig
> @@ -126,6 +126,7 @@ config QCOM_Q6V5_ADSP
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> select MFD_SYSCON
> + select QCOM_PIL_INFO
> select QCOM_MDT_LOADER
> select QCOM_Q6V5_COMMON
> select QCOM_RPROC_COMMON
> @@ -158,6 +159,7 @@ config QCOM_Q6V5_PAS
> depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> select MFD_SYSCON
> + select QCOM_PIL_INFO
> select QCOM_MDT_LOADER
> select QCOM_Q6V5_COMMON
> select QCOM_RPROC_COMMON
> @@ -209,6 +211,7 @@ config QCOM_WCNSS_PIL
> depends on QCOM_SMEM
> depends on QCOM_SYSMON || QCOM_SYSMON=n
> select QCOM_MDT_LOADER
> + select QCOM_PIL_INFO
> select QCOM_RPROC_COMMON
> select QCOM_SCM
> help
> diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c
> b/drivers/remoteproc/qcom_q6v5_adsp.c
> index d2a2574dcf35..c539e89664cb 100644
> --- a/drivers/remoteproc/qcom_q6v5_adsp.c
> +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
> @@ -26,6 +26,7 @@
> #include <linux/soc/qcom/smem_state.h>
>
> #include "qcom_common.h"
> +#include "qcom_pil_info.h"
> #include "qcom_q6v5.h"
> #include "remoteproc_internal.h"
>
> @@ -82,6 +83,7 @@ struct qcom_adsp {
> unsigned int halt_lpass;
>
> int crash_reason_smem;
> + const char *info_name;
>
> struct completion start_done;
> struct completion stop_done;
> @@ -164,10 +166,17 @@ static int qcom_adsp_shutdown(struct qcom_adsp
> *adsp)
> 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_load_no_init(adsp->dev, fw, rproc->firmware, 0,
> + adsp->mem_region, adsp->mem_phys,
> + adsp->mem_size, &adsp->mem_reloc);
> + if (ret)
> + return ret;
> +
> + qcom_pil_info_store(adsp->info_name, adsp->mem_reloc,
> adsp->mem_size);
>
> - return qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, 0,
> - adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> - &adsp->mem_reloc);
> + return 0;
> }
>
> static int adsp_start(struct rproc *rproc)
> @@ -436,6 +445,7 @@ static int adsp_probe(struct platform_device *pdev)
> adsp = (struct qcom_adsp *)rproc->priv;
> adsp->dev = &pdev->dev;
> adsp->rproc = rproc;
> + adsp->info_name = desc->sysmon_name;
> platform_set_drvdata(pdev, adsp);
>
> ret = adsp_alloc_memory_region(adsp);
> diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
> b/drivers/remoteproc/qcom_q6v5_mss.c
> index c4936f4d1e80..fdbcae11ae64 100644
> --- a/drivers/remoteproc/qcom_q6v5_mss.c
> +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> @@ -29,6 +29,7 @@
>
> #include "remoteproc_internal.h"
> #include "qcom_common.h"
> +#include "qcom_pil_info.h"
> #include "qcom_q6v5.h"
>
> #include <linux/qcom_scm.h>
> @@ -1221,6 +1222,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> else if (ret < 0)
> dev_err(qproc->dev, "MPSS authentication failed: %d\n", ret);
>
> + qcom_pil_info_store("modem", mpss_reloc, qproc->mpss_size);
> +
> release_firmware:
> release_firmware(fw);
> out:
> diff --git a/drivers/remoteproc/qcom_q6v5_pas.c
> b/drivers/remoteproc/qcom_q6v5_pas.c
> index 3bb69f58e086..84cb19231c35 100644
> --- a/drivers/remoteproc/qcom_q6v5_pas.c
> +++ b/drivers/remoteproc/qcom_q6v5_pas.c
> @@ -25,6 +25,7 @@
> #include <linux/soc/qcom/smem_state.h>
>
> #include "qcom_common.h"
> +#include "qcom_pil_info.h"
> #include "qcom_q6v5.h"
> #include "remoteproc_internal.h"
>
> @@ -64,6 +65,7 @@ struct qcom_adsp {
> int pas_id;
> int crash_reason_smem;
> bool has_aggre2_clk;
> + const char *info_name;
>
> struct completion start_done;
> struct completion stop_done;
> @@ -117,11 +119,17 @@ static void adsp_pds_disable(struct qcom_adsp
> *adsp, struct device **pds,
> static int adsp_load(struct rproc *rproc, const struct firmware *fw)
> {
> struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
> + int ret;
>
> - return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
> - adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> - &adsp->mem_reloc);
> + ret = qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
> + adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> + &adsp->mem_reloc);
> + if (ret)
> + return ret;
>
> + qcom_pil_info_store(adsp->info_name, adsp->mem_reloc,
> adsp->mem_size);
mem_reloc is used to calculate offset and then we again add that offset
to the
ioremapped region base. So we should pass adsp->mem_phys as start here?
> +
> + return 0;
> }
>
> static int adsp_start(struct rproc *rproc)
> @@ -405,6 +413,7 @@ static int adsp_probe(struct platform_device *pdev)
> adsp->rproc = rproc;
> adsp->pas_id = desc->pas_id;
> adsp->has_aggre2_clk = desc->has_aggre2_clk;
> + adsp->info_name = desc->sysmon_name;
> platform_set_drvdata(pdev, adsp);
>
> ret = adsp_alloc_memory_region(adsp);
> diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c
> b/drivers/remoteproc/qcom_q6v5_wcss.c
> index f1924b740a10..962e37a86b8b 100644
> --- a/drivers/remoteproc/qcom_q6v5_wcss.c
> +++ b/drivers/remoteproc/qcom_q6v5_wcss.c
> @@ -421,10 +421,18 @@ static void *q6v5_wcss_da_to_va(struct rproc
> *rproc, u64 da, size_t len)
> static int q6v5_wcss_load(struct rproc *rproc, const struct firmware
> *fw)
> {
> struct q6v5_wcss *wcss = rproc->priv;
> + int ret;
> +
> + ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware,
> + 0, wcss->mem_region, wcss->mem_phys,
> + wcss->mem_size, &wcss->mem_reloc);
> + if (ret)
> + return ret;
> +
> + /* Failures only affect post mortem debugging, so ignore return value
> */
> + qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size);
>
> - return qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware,
> - 0, wcss->mem_region, wcss->mem_phys,
> - wcss->mem_size, &wcss->mem_reloc);
> + return ret;
> }
>
> static const struct rproc_ops q6v5_wcss_ops = {
> diff --git a/drivers/remoteproc/qcom_wcnss.c
> b/drivers/remoteproc/qcom_wcnss.c
> index 5d65e1a9329a..229482b3231f 100644
> --- a/drivers/remoteproc/qcom_wcnss.c
> +++ b/drivers/remoteproc/qcom_wcnss.c
> @@ -27,6 +27,7 @@
>
> #include "qcom_common.h"
> #include "remoteproc_internal.h"
> +#include "qcom_pil_info.h"
> #include "qcom_wcnss.h"
>
> #define WCNSS_CRASH_REASON_SMEM 422
> @@ -145,10 +146,17 @@ void qcom_wcnss_assign_iris(struct qcom_wcnss
> *wcnss,
> static int wcnss_load(struct rproc *rproc, const struct firmware *fw)
> {
> struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv;
> + int ret;
> +
> + ret = qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
> + wcnss->mem_region, wcnss->mem_phys,
> + wcnss->mem_size, &wcnss->mem_reloc);
> + if (ret)
> + return ret;
> +
> + qcom_pil_info_store("wcnss", wcnss->mem_reloc, wcnss->mem_size);
>
> - return qcom_mdt_load(wcnss->dev, fw, rproc->firmware, WCNSS_PAS_ID,
> - wcnss->mem_region, wcnss->mem_phys,
> - wcnss->mem_size, &wcnss->mem_reloc);
> + return 0;
> }
>
> static void wcnss_indicate_nv_download(struct qcom_wcnss *wcnss)
On Tue 19 May 11:14 PDT 2020, [email protected] wrote:
> On 2020-05-12 22:56, Bjorn Andersson wrote:
> > Update the PIL relocation information in IMEM with information about
> > where the firmware for various remoteprocs are loaded.
> >
> > Signed-off-by: Bjorn Andersson <[email protected]>
> > ---
> >
> > Changes since v4:
> > - Dropped unnecessary comment about ignoring return value.
> >
> > drivers/remoteproc/Kconfig | 3 +++
> > drivers/remoteproc/qcom_q6v5_adsp.c | 16 +++++++++++++---
> > drivers/remoteproc/qcom_q6v5_mss.c | 3 +++
> > drivers/remoteproc/qcom_q6v5_pas.c | 15 ++++++++++++---
> > drivers/remoteproc/qcom_q6v5_wcss.c | 14 +++++++++++---
> > drivers/remoteproc/qcom_wcnss.c | 14 +++++++++++---
> > 6 files changed, 53 insertions(+), 12 deletions(-)
> >
> > diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> > index 8088ca4dd6dc..6bd42a411ca8 100644
> > --- a/drivers/remoteproc/Kconfig
> > +++ b/drivers/remoteproc/Kconfig
> > @@ -126,6 +126,7 @@ config QCOM_Q6V5_ADSP
> > depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> > depends on QCOM_SYSMON || QCOM_SYSMON=n
> > select MFD_SYSCON
> > + select QCOM_PIL_INFO
> > select QCOM_MDT_LOADER
> > select QCOM_Q6V5_COMMON
> > select QCOM_RPROC_COMMON
> > @@ -158,6 +159,7 @@ config QCOM_Q6V5_PAS
> > depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
> > depends on QCOM_SYSMON || QCOM_SYSMON=n
> > select MFD_SYSCON
> > + select QCOM_PIL_INFO
> > select QCOM_MDT_LOADER
> > select QCOM_Q6V5_COMMON
> > select QCOM_RPROC_COMMON
> > @@ -209,6 +211,7 @@ config QCOM_WCNSS_PIL
> > depends on QCOM_SMEM
> > depends on QCOM_SYSMON || QCOM_SYSMON=n
> > select QCOM_MDT_LOADER
> > + select QCOM_PIL_INFO
> > select QCOM_RPROC_COMMON
> > select QCOM_SCM
> > help
> > diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c
> > b/drivers/remoteproc/qcom_q6v5_adsp.c
> > index d2a2574dcf35..c539e89664cb 100644
> > --- a/drivers/remoteproc/qcom_q6v5_adsp.c
> > +++ b/drivers/remoteproc/qcom_q6v5_adsp.c
> > @@ -26,6 +26,7 @@
> > #include <linux/soc/qcom/smem_state.h>
> >
> > #include "qcom_common.h"
> > +#include "qcom_pil_info.h"
> > #include "qcom_q6v5.h"
> > #include "remoteproc_internal.h"
> >
> > @@ -82,6 +83,7 @@ struct qcom_adsp {
> > unsigned int halt_lpass;
> >
> > int crash_reason_smem;
> > + const char *info_name;
> >
> > struct completion start_done;
> > struct completion stop_done;
> > @@ -164,10 +166,17 @@ static int qcom_adsp_shutdown(struct qcom_adsp
> > *adsp)
> > 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_load_no_init(adsp->dev, fw, rproc->firmware, 0,
> > + adsp->mem_region, adsp->mem_phys,
> > + adsp->mem_size, &adsp->mem_reloc);
> > + if (ret)
> > + return ret;
> > +
> > + qcom_pil_info_store(adsp->info_name, adsp->mem_reloc, adsp->mem_size);
> >
> > - return qcom_mdt_load_no_init(adsp->dev, fw, rproc->firmware, 0,
> > - adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> > - &adsp->mem_reloc);
> > + return 0;
> > }
> >
> > static int adsp_start(struct rproc *rproc)
> > @@ -436,6 +445,7 @@ static int adsp_probe(struct platform_device *pdev)
> > adsp = (struct qcom_adsp *)rproc->priv;
> > adsp->dev = &pdev->dev;
> > adsp->rproc = rproc;
> > + adsp->info_name = desc->sysmon_name;
> > platform_set_drvdata(pdev, adsp);
> >
> > ret = adsp_alloc_memory_region(adsp);
> > diff --git a/drivers/remoteproc/qcom_q6v5_mss.c
> > b/drivers/remoteproc/qcom_q6v5_mss.c
> > index c4936f4d1e80..fdbcae11ae64 100644
> > --- a/drivers/remoteproc/qcom_q6v5_mss.c
> > +++ b/drivers/remoteproc/qcom_q6v5_mss.c
> > @@ -29,6 +29,7 @@
> >
> > #include "remoteproc_internal.h"
> > #include "qcom_common.h"
> > +#include "qcom_pil_info.h"
> > #include "qcom_q6v5.h"
> >
> > #include <linux/qcom_scm.h>
> > @@ -1221,6 +1222,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
> > else if (ret < 0)
> > dev_err(qproc->dev, "MPSS authentication failed: %d\n", ret);
> >
> > + qcom_pil_info_store("modem", mpss_reloc, qproc->mpss_size);
> > +
> > release_firmware:
> > release_firmware(fw);
> > out:
> > diff --git a/drivers/remoteproc/qcom_q6v5_pas.c
> > b/drivers/remoteproc/qcom_q6v5_pas.c
> > index 3bb69f58e086..84cb19231c35 100644
> > --- a/drivers/remoteproc/qcom_q6v5_pas.c
> > +++ b/drivers/remoteproc/qcom_q6v5_pas.c
> > @@ -25,6 +25,7 @@
> > #include <linux/soc/qcom/smem_state.h>
> >
> > #include "qcom_common.h"
> > +#include "qcom_pil_info.h"
> > #include "qcom_q6v5.h"
> > #include "remoteproc_internal.h"
> >
> > @@ -64,6 +65,7 @@ struct qcom_adsp {
> > int pas_id;
> > int crash_reason_smem;
> > bool has_aggre2_clk;
> > + const char *info_name;
> >
> > struct completion start_done;
> > struct completion stop_done;
> > @@ -117,11 +119,17 @@ static void adsp_pds_disable(struct qcom_adsp
> > *adsp, struct device **pds,
> > static int adsp_load(struct rproc *rproc, const struct firmware *fw)
> > {
> > struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
> > + int ret;
> >
> > - return qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
> > - adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> > - &adsp->mem_reloc);
> > + ret = qcom_mdt_load(adsp->dev, fw, rproc->firmware, adsp->pas_id,
> > + adsp->mem_region, adsp->mem_phys, adsp->mem_size,
> > + &adsp->mem_reloc);
> > + if (ret)
> > + return ret;
> >
> > + qcom_pil_info_store(adsp->info_name, adsp->mem_reloc, adsp->mem_size);
> mem_reloc is used to calculate offset and then we again add that offset to
> the
> ioremapped region base. So we should pass adsp->mem_phys as start here?
You're correct, I will respin this.
Thanks,
Bjorn
On Tue, May 12, 2020 at 10:56:37PM -0700, Bjorn Andersson wrote:
> Add a devicetree binding for the Qualcomm peripheral image loader
> relocation information region found in the IMEM.
>
> Reviewed-by: Stephen Boyd <[email protected]>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
>
> Changes since v4:
> - Fixed reg in example to make it compile
>
> .../bindings/remoteproc/qcom,pil-info.yaml | 44 +++++++++++++++++++
> 1 file changed, 44 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
Reviewed-by: Mathieu Poirier <[email protected]>
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
> new file mode 100644
> index 000000000000..87c52316ddbd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/remoteproc/qcom,pil-info.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm peripheral image loader relocation info binding
> +
> +maintainers:
> + - Bjorn Andersson <[email protected]>
> +
> +description:
> + The Qualcomm peripheral image loader relocation memory region, in IMEM, is
> + used for communicating remoteproc relocation information to post mortem
> + debugging tools.
> +
> +properties:
> + compatible:
> + const: qcom,pil-reloc-info
> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> +
> +examples:
> + - |
> + imem@146bf000 {
> + compatible = "syscon", "simple-mfd";
> + reg = <0x146bf000 0x1000>;
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + ranges = <0 0x146bf000 0x1000>;
> +
> + pil-reloc@94c {
> + compatible = "qcom,pil-reloc-info";
> + reg = <0x94c 0xc8>;
> + };
> + };
> +...
> --
> 2.26.2
>
On Tue, May 12, 2020 at 10:56:38PM -0700, Bjorn Andersson wrote:
> A region in IMEM is used to communicate load addresses of remoteproc to
> post mortem debug tools. Implement a helper function that can be used to
> store this information in order to enable these tools to process
> collected ramdumps.
>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
>
> Changes since v4:
> - Replaced platform_driver by just a single helper function
> - Lazy initialization of mapping
> - Cleaned up search loop
> - Replaced regmap access of IMEM with ioremap and normal accessors
>
> drivers/remoteproc/Kconfig | 3 +
> drivers/remoteproc/Makefile | 1 +
> drivers/remoteproc/qcom_pil_info.c | 124 +++++++++++++++++++++++++++++
> drivers/remoteproc/qcom_pil_info.h | 7 ++
> 4 files changed, 135 insertions(+)
> create mode 100644 drivers/remoteproc/qcom_pil_info.c
> create mode 100644 drivers/remoteproc/qcom_pil_info.h
>
> diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
> index fbaed079b299..8088ca4dd6dc 100644
> --- a/drivers/remoteproc/Kconfig
> +++ b/drivers/remoteproc/Kconfig
> @@ -107,6 +107,9 @@ config KEYSTONE_REMOTEPROC
> It's safe to say N here if you're not interested in the Keystone
> DSPs or just want to use a bare minimum kernel.
>
> +config QCOM_PIL_INFO
> + tristate
> +
> config QCOM_RPROC_COMMON
> tristate
>
> diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
> index 0effd3825035..cc0f631adb3b 100644
> --- a/drivers/remoteproc/Makefile
> +++ b/drivers/remoteproc/Makefile
> @@ -15,6 +15,7 @@ obj-$(CONFIG_OMAP_REMOTEPROC) += omap_remoteproc.o
> obj-$(CONFIG_WKUP_M3_RPROC) += wkup_m3_rproc.o
> obj-$(CONFIG_DA8XX_REMOTEPROC) += da8xx_remoteproc.o
> obj-$(CONFIG_KEYSTONE_REMOTEPROC) += keystone_remoteproc.o
> +obj-$(CONFIG_QCOM_PIL_INFO) += qcom_pil_info.o
> obj-$(CONFIG_QCOM_RPROC_COMMON) += qcom_common.o
> obj-$(CONFIG_QCOM_Q6V5_COMMON) += qcom_q6v5.o
> obj-$(CONFIG_QCOM_Q6V5_ADSP) += qcom_q6v5_adsp.o
> diff --git a/drivers/remoteproc/qcom_pil_info.c b/drivers/remoteproc/qcom_pil_info.c
> new file mode 100644
> index 000000000000..0785c7cde2d3
> --- /dev/null
> +++ b/drivers/remoteproc/qcom_pil_info.c
> @@ -0,0 +1,124 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Copyright (c) 2019-2020 Linaro Ltd.
> + */
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/of_address.h>
> +
> +#define PIL_RELOC_NAME_LEN 8
> +
> +struct pil_reloc_entry {
> + char name[PIL_RELOC_NAME_LEN];
> + __le64 base;
> + __le32 size;
> +} __packed;
> +
> +struct pil_reloc {
> + struct device *dev;
> + void __iomem *base;
> + size_t num_entries;
> +};
> +
> +static struct pil_reloc _reloc __read_mostly;
> +static DEFINE_MUTEX(reloc_mutex);
> +
> +static int qcom_pil_info_init(void)
> +{
> + struct device_node *np;
> + struct resource imem;
> + void __iomem *base;
> + int ret;
> +
> + /* Already initialized? */
> + if (_reloc.base)
> + return 0;
> +
> + np = of_find_compatible_node(NULL, NULL, "qcom,pil-reloc-info");
> + if (!np)
> + return -ENOENT;
> +
> + ret = of_address_to_resource(np, 0, &imem);
> + of_node_put(np);
> + if (ret < 0)
> + return ret;
> +
> + base = ioremap(imem.start, resource_size(&imem));
> + if (!base) {
> + pr_err("failed to map PIL relocation info region\n");
> + return -ENOMEM;
> + }
> +
> + memset_io(base, 0, resource_size(&imem));
> +
> + _reloc.base = base;
> + _reloc.num_entries = resource_size(&imem) / sizeof(struct pil_reloc_entry);
> +
> + return 0;
> +}
> +
> +/**
> + * qcom_pil_info_store() - store PIL information of image in IMEM
> + * @image: name of the image
> + * @base: base address of the loaded image
> + * @size: size of the loaded image
> + *
> + * Return: 0 on success, negative errno on failure
> + */
> +int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size)
> +{
> + char buf[PIL_RELOC_NAME_LEN];
> + void __iomem *entry;
> + int ret;
> + int i;
> +
> + mutex_lock(&reloc_mutex);
> + ret = qcom_pil_info_init();
> + if (ret < 0) {
> + mutex_unlock(&reloc_mutex);
> + return ret;
> + }
> +
> + for (i = 0; i < _reloc.num_entries; i++) {
> + entry = _reloc.base + i * sizeof(struct pil_reloc_entry);
> +
> + memcpy_fromio(buf, entry, PIL_RELOC_NAME_LEN);
> +
> + /*
> + * An empty record means we didn't find it, given that the
> + * records are packed.
> + */
> + if (!buf[0])
> + goto found_unused;
> +
> + if (!strncmp(buf, image, PIL_RELOC_NAME_LEN))
> + goto found_existing;
> + }
> +
> + pr_warn("insufficient PIL info slots\n");
> + mutex_unlock(&reloc_mutex);
> + return -ENOMEM;
> +
> +found_unused:
> + memcpy_toio(entry, image, PIL_RELOC_NAME_LEN);
> +found_existing:
> + writel(base, entry + offsetof(struct pil_reloc_entry, base));
> + writel(size, entry + offsetof(struct pil_reloc_entry, size));
> + mutex_unlock(&reloc_mutex);
> +
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(qcom_pil_info_store);
> +
> +static void __exit pil_reloc_exit(void)
> +{
> + mutex_lock(&reloc_mutex);
> + iounmap(_reloc.base);
> + _reloc.base = NULL;
> + mutex_unlock(&reloc_mutex);
> +}
> +module_exit(pil_reloc_exit);
> +
> +MODULE_DESCRIPTION("Qualcomm PIL relocation info");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/remoteproc/qcom_pil_info.h b/drivers/remoteproc/qcom_pil_info.h
> new file mode 100644
> index 000000000000..1b89a63ba82f
> --- /dev/null
> +++ b/drivers/remoteproc/qcom_pil_info.h
> @@ -0,0 +1,7 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef __QCOM_PIL_INFO_H__
> +#define __QCOM_PIL_INFO_H__
> +
> +int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size);
> +
> +#endif
Very clean an easy to understand.
Reviewed-by: Mathieu Poirier <[email protected]>
> --
> 2.26.2
>
On Tue, 12 May 2020 22:56:37 -0700, Bjorn Andersson wrote:
> Add a devicetree binding for the Qualcomm peripheral image loader
> relocation information region found in the IMEM.
>
> Reviewed-by: Stephen Boyd <[email protected]>
> Signed-off-by: Bjorn Andersson <[email protected]>
> ---
>
> Changes since v4:
> - Fixed reg in example to make it compile
>
> .../bindings/remoteproc/qcom,pil-info.yaml | 44 +++++++++++++++++++
> 1 file changed, 44 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,pil-info.yaml
>
Reviewed-by: Rob Herring <[email protected]>