LinuxLists.cc - [PATCH v1 0/5] Add missing features to FastRPC driver

2024-05-08 05:44:02

Subject: [PATCH v1 0/5] Add missing features to FastRPC driver

This patch series adds the listed features that have been missing
in upstream fastRPC driver.

- Redesign and improve remote heap management.
- Add static PD restart support for audio and sensors PD using
PDR framework.
- Add change to support unsigned PD. Unsigned PD can be enabled
using userspace API:
https://git.codelinaro.org/linaro/qcomlt/fastrpc/-/blob/master/src/fastrpc_apps_user.c?ref_type=heads#L1173
- Add check for untrusted applications and allow trusted processed to
offload to system unsigned PD.

Ekansh Gupta (5):
misc: fastrpc: Redesign remote heap management
misc: fastrpc: Add support for unsigned PD
misc: fastrpc: Restrict untrusted apk to spawn
misc: fastrpc: Add system unsigned PD support
misc: fastrpc: Add static PD restart support

drivers/misc/Kconfig | 1 +
drivers/misc/fastrpc.c | 631 +++++++++++++++++++++++++++++-------
include/uapi/misc/fastrpc.h | 2 +
3 files changed, 514 insertions(+), 120 deletions(-)

--
2.43.0

2024-05-08 05:44:04

by Ekansh Gupta

[permalink] [raw]

Subject: [PATCH v1 2/5] misc: fastrpc: Add support for unsigned PD

Unsigned PDs are sandboxed DSP processes used to offload computation
workloads to the DSP. Unsigned PD have less privileges in terms of
DSP resource access as compared to Signed PD.

Unsigned PD requires more initial memory to spawn. Also most of
the memory request are allocated from userspace. Add support for
unsigned PD by increasing init memory size and handling mapping
request for cases other than DSP heap grow requests.

Signed-off-by: Ekansh Gupta <[email protected]>
---
drivers/misc/fastrpc.c | 188 ++++++++++++++++++++++++++---------------
1 file changed, 119 insertions(+), 69 deletions(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index c0c85bc4c413..258f2b9da039 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -38,7 +38,7 @@
#define FASTRPC_INIT_HANDLE 1
#define FASTRPC_DSP_UTILITIES_HANDLE 2
#define FASTRPC_CTXID_MASK (0xFF0)
-#define INIT_FILELEN_MAX (2 * 1024 * 1024)
+#define INIT_FILELEN_MAX (5 * 1024 * 1024)
#define INIT_FILE_NAMELEN_MAX (128)
#define FASTRPC_DEVICE_NAME "fastrpc"

@@ -302,6 +302,7 @@ struct fastrpc_user {
int tgid;
int pd;
bool is_secure_dev;
+ bool is_unsigned_pd;
/* Lock for lists */
spinlock_t lock;
/* lock for allocations */
@@ -1409,7 +1410,6 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl,
u32 siglen;
} inbuf;
u32 sc;
- bool unsigned_module = false;

args = kcalloc(FASTRPC_CREATE_PROCESS_NARGS, sizeof(*args), GFP_KERNEL);
if (!args)
@@ -1421,9 +1421,9 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl,
}

if (init.attrs & FASTRPC_MODE_UNSIGNED_MODULE)
- unsigned_module = true;
+ fl->is_unsigned_pd = true;

- if (is_session_rejected(fl, unsigned_module)) {
+ if (is_session_rejected(fl, fl->is_unsigned_pd)) {
err = -ECONNREFUSED;
goto err;
}
@@ -1960,6 +1960,7 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp)
struct fastrpc_mmap_rsp_msg rsp_msg;
struct fastrpc_phy_page pages;
struct fastrpc_req_mmap req;
+ struct fastrpc_map *map = NULL;
struct device *dev = fl->sctx->dev;
int err;
u32 sc;
@@ -1968,96 +1969,145 @@ static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp)
if (copy_from_user(&req, argp, sizeof(req)))
return -EFAULT;

- if (req.flags != ADSP_MMAP_ADD_PAGES && req.flags != ADSP_MMAP_REMOTE_HEAP_ADDR) {
- dev_err(dev, "flag not supported 0x%x\n", req.flags);
+ if (req.flags == ADSP_MMAP_ADD_PAGES || req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR) {
+ if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR && fl->is_unsigned_pd) {
+ dev_err(dev, "secure memory allocation is not supported in unsigned PD\n");
+ return -EINVAL;
+ }
+ if (req.vaddrin && !fl->is_unsigned_pd) {
+ dev_err(dev, "adding user allocated pages is not supported\n");
+ return -EINVAL;
+ }

- return -EINVAL;
- }
+ if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR)
+ err = fastrpc_remote_heap_alloc(fl, dev, req.size, &buf);
+ else
+ err = fastrpc_buf_alloc(fl, dev, req.size, &buf);

- if (req.vaddrin) {
- dev_err(dev, "adding user allocated pages is not supported\n");
- return -EINVAL;
- }
+ if (err) {
+ dev_err(dev, "failed to allocate buffer\n");
+ return err;
+ }

- if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR)
- err = fastrpc_remote_heap_alloc(fl, dev, req.size, &buf);
- else
- err = fastrpc_buf_alloc(fl, dev, req.size, &buf);
+ req_msg.pgid = fl->tgid;
+ req_msg.flags = req.flags;
+ req_msg.vaddr = req.vaddrin;
+ req_msg.num = sizeof(pages);

- if (err) {
- dev_err(dev, "failed to allocate buffer\n");
- return err;
- }
+ args[0].ptr = (u64) (uintptr_t) &req_msg;
+ args[0].length = sizeof(req_msg);

- req_msg.pgid = fl->tgid;
- req_msg.flags = req.flags;
- req_msg.vaddr = req.vaddrin;
- req_msg.num = sizeof(pages);
+ pages.addr = buf->phys;
+ pages.size = buf->size;

- args[0].ptr = (u64) (uintptr_t) &req_msg;
- args[0].length = sizeof(req_msg);
+ args[1].ptr = (u64) (uintptr_t) &pages;
+ args[1].length = sizeof(pages);

- pages.addr = buf->phys;
- pages.size = buf->size;
+ args[2].ptr = (u64) (uintptr_t) &rsp_msg;
+ args[2].length = sizeof(rsp_msg);

- args[1].ptr = (u64) (uintptr_t) &pages;
- args[1].length = sizeof(pages);
+ sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_MMAP, 2, 1);
+ err = fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE, sc,
+ &args[0]);
+ if (err) {
+ dev_err(dev, "mmap error (len 0x%08llx)\n", buf->size);
+ goto err_invoke;
+ }

- args[2].ptr = (u64) (uintptr_t) &rsp_msg;
- args[2].length = sizeof(rsp_msg);
+ /* update the buffer to be able to deallocate the memory on the DSP */
+ buf->raddr = (uintptr_t) rsp_msg.vaddr;
+ buf->flag = req.flags;

- sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_MMAP, 2, 1);
- err = fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE, sc,
- &args[0]);
- if (err) {
- dev_err(dev, "mmap error (len 0x%08llx)\n", buf->size);
- goto err_invoke;
- }
+ /* let the client know the address to use */
+ req.vaddrout = rsp_msg.vaddr;

- /* update the buffer to be able to deallocate the memory on the DSP */
- buf->raddr = (uintptr_t) rsp_msg.vaddr;
- buf->flag = req.flags;
+ /* Add memory to static PD pool, protection thru hypervisor */
+ if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR && fl->cctx->vmcount) {
+ u64 src_perms = BIT(QCOM_SCM_VMID_HLOS);

- /* let the client know the address to use */
- req.vaddrout = rsp_msg.vaddr;
+ err = qcom_scm_assign_mem(buf->phys, (u64)buf->size,
+ &src_perms, fl->cctx->vmperms, fl->cctx->vmcount);
+ if (err) {
+ dev_err(fl->sctx->dev, "Failed to assign memory phys 0x%llx size 0x%llx err %d\n",
+ buf->phys, buf->size, err);
+ goto err_assign;
+ }
+ }

- /* Add memory to static PD pool, protection thru hypervisor */
- if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR && fl->cctx->vmcount) {
- u64 src_perms = BIT(QCOM_SCM_VMID_HLOS);
+ if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR) {
+ spin_lock_irqsave(&fl->cctx->lock, flags);
+ list_add_tail(&buf->node, &fl->cctx->rmaps);
+ spin_unlock_irqrestore(&fl->cctx->lock, flags);
+ } else {
+ spin_lock(&fl->lock);
+ list_add_tail(&buf->node, &fl->mmaps);
+ spin_unlock(&fl->lock);
+ }

- err = qcom_scm_assign_mem(buf->phys, (u64)buf->size,
- &src_perms, fl->cctx->vmperms, fl->cctx->vmcount);
- if (err) {
- dev_err(fl->sctx->dev, "Failed to assign memory phys 0x%llx size 0x%llx err %d\n",
- buf->phys, buf->size, err);
+ if (copy_to_user((void __user *)argp, &req, sizeof(req))) {
+ err = -EFAULT;
goto err_assign;
}
- }

- if (req.flags == ADSP_MMAP_REMOTE_HEAP_ADDR) {
- spin_lock_irqsave(&fl->cctx->lock, flags);
- list_add_tail(&buf->node, &fl->cctx->rmaps);
- spin_unlock_irqrestore(&fl->cctx->lock, flags);
+ dev_dbg(dev, "mmap\t\tpt 0x%09lx OK [len 0x%08llx]\n",
+ buf->raddr, buf->size);
} else {
- spin_lock(&fl->lock);
- list_add_tail(&buf->node, &fl->mmaps);
- spin_unlock(&fl->lock);
- }
+ err = fastrpc_map_create(fl, req.fd, req.size, 0, &map);
+ if (err) {
+ dev_err(dev, "failed to map buffer, fd = %d\n", req.fd);
+ return err;
+ }

- if (copy_to_user((void __user *)argp, &req, sizeof(req))) {
- err = -EFAULT;
- goto err_assign;
- }
+ req_msg.pgid = fl->tgid;
+ req_msg.flags = req.flags;
+ req_msg.vaddr = req.vaddrin;
+ req_msg.num = sizeof(pages);

- dev_dbg(dev, "mmap\t\tpt 0x%09lx OK [len 0x%08llx]\n",
- buf->raddr, buf->size);
+ args[0].ptr = (u64) (uintptr_t) &req_msg;
+ args[0].length = sizeof(req_msg);
+
+ pages.addr = map->phys;
+ pages.size = map->size;
+
+ args[1].ptr = (u64) (uintptr_t) &pages;
+ args[1].length = sizeof(pages);
+
+ args[2].ptr = (u64) (uintptr_t) &rsp_msg;
+ args[2].length = sizeof(rsp_msg);
+
+ sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_MMAP, 2, 1);
+
+ err = fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE, sc,
+ &args[0]);
+ if (err) {
+ dev_err(dev, "mmap error (len 0x%08llx)\n", map->size);
+ goto err_invoke;
+ }
+
+ /* update the buffer to be able to deallocate the memory on the DSP */
+ map->raddr = (uintptr_t) rsp_msg.vaddr;
+
+ /* let the client know the address to use */
+ req.vaddrout = rsp_msg.vaddr;
+
+ if (copy_to_user((void __user *)argp, &req, sizeof(req))) {
+ err = -EFAULT;
+ goto err_assign;
+ }
+ }

return 0;

err_assign:
- fastrpc_req_munmap_impl(fl, buf);
+ if (req.flags != ADSP_MMAP_ADD_PAGES && req.flags != ADSP_MMAP_REMOTE_HEAP_ADDR)
+ fastrpc_map_put(map);
+ else
+ fastrpc_req_munmap_impl(fl, buf);
err_invoke:
- fastrpc_buf_free(buf);
+ if (map)
+ fastrpc_map_put(map);
+ if (buf)
+ fastrpc_buf_free(buf);

return err;
}
--
2.43.0

2024-05-08 05:44:19

by Ekansh Gupta

[permalink] [raw]

Subject: [PATCH v1 3/5] misc: fastrpc: Restrict untrusted apk to spawn

Untrusted application can attach to guestOS and staticPD if it can
make root PD, sensors PD or audio PD attach request. This is a
potential security issue as the untrusted application can crash
rootPD or staticPD. Restrict attach to guestOS or staticPD request
if request is being made using non-secure device node.

Also for untrusted dynamic processes, DSP HAL process opens the
device node on behalf of the application. Add a check to restrict
such untrusted applications from offloading to signed PD.

Signed-off-by: Ekansh Gupta <[email protected]>
---
drivers/misc/fastrpc.c | 35 +++++++++++++++++++++++++++++------
1 file changed, 29 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 258f2b9da039..1f85ce3eb2e2 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -303,6 +303,7 @@ struct fastrpc_user {
int pd;
bool is_secure_dev;
bool is_unsigned_pd;
+ bool untrusted_process;
/* Lock for lists */
spinlock_t lock;
/* lock for allocations */
@@ -1208,20 +1209,24 @@ static int fastrpc_internal_invoke(struct fastrpc_user *fl, u32 kernel,

static bool is_session_rejected(struct fastrpc_user *fl, bool unsigned_pd_request)
{
- /* Check if the device node is non-secure and channel is secure*/
+ /* Check if the device node is non-secure and channel is secure */
if (!fl->is_secure_dev && fl->cctx->secure) {
/*
* Allow untrusted applications to offload only to Unsigned PD when
* channel is configured as secure and block untrusted apps on channel
* that does not support unsigned PD offload
*/
- if (!fl->cctx->unsigned_support || !unsigned_pd_request) {
- dev_err(&fl->cctx->rpdev->dev, "Error: Untrusted application trying to offload to signed PD");
- return true;
- }
+ if (!fl->cctx->unsigned_support || !unsigned_pd_request)
+ goto reject_session;
}
+ /* Check if untrusted process is trying to offload to signed PD */
+ if (fl->untrusted_process && !unsigned_pd_request)
+ goto reject_session;

return false;
+reject_session:
+ dev_err(&fl->cctx->rpdev->dev, "Error: Untrusted application trying to offload to signed PD");
+ return true;
}

static int fastrpc_mmap_remove_ssr(struct fastrpc_channel_ctx *cctx)
@@ -1274,6 +1279,11 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
} inbuf;
u32 sc;

+ if (!fl->is_secure_dev) {
+ dev_err(&fl->cctx->rpdev->dev, "untrusted app trying to attach to privileged DSP PD\n");
+ return -EACCES;
+ }
+
args = kcalloc(FASTRPC_CREATE_STATIC_PROCESS_NARGS, sizeof(*args), GFP_KERNEL);
if (!args)
return -ENOMEM;
@@ -1420,11 +1430,19 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl,
goto err;
}

+ /*
+ * Third-party apps don't have permission to open the fastrpc device, so
+ * it is opened on their behalf by DSP HAL. This is detected by
+ * comparing current PID with the one stored during device open.
+ */
+ if (current->tgid != fl->tgid)
+ fl->untrusted_process = true;
+
if (init.attrs & FASTRPC_MODE_UNSIGNED_MODULE)
fl->is_unsigned_pd = true;

if (is_session_rejected(fl, fl->is_unsigned_pd)) {
- err = -ECONNREFUSED;
+ err = -EACCES;
goto err;
}

@@ -1688,6 +1706,11 @@ static int fastrpc_init_attach(struct fastrpc_user *fl, int pd)
int tgid = fl->tgid;
u32 sc;

+ if (!fl->is_secure_dev) {
+ dev_err(&fl->cctx->rpdev->dev, "untrusted app trying to attach to privileged DSP PD\n");
+ return -EACCES;
+ }
+
args[0].ptr = (u64)(uintptr_t) &tgid;
args[0].length = sizeof(tgid);
args[0].fd = -1;
--
2.43.0

2024-05-08 05:45:41

by Ekansh Gupta

[permalink] [raw]

Subject: [PATCH v1 4/5] misc: fastrpc: Add system unsigned PD support

Trusted CPU applications currently offload to signed PDs on CDSP to
gain some additional services provided by root PD. Unsigned PDs have
access to limited root PD services that may not be sufficient for
all use-cases. Signed PDs have a higher dynamic loading latency
which impacts the performance of applications. Limited root PD
services could be opened up for unsigned PDs but that should be
restricted for untrusted processes. For this requirement, System
unsigned PD is introduced which will be same as Unsigned PD for
most part but will have access to more root PD services. Add
changes to offload trusted applications to System unsigned PD
when unsigned offload is requested.

Signed-off-by: Ekansh Gupta <[email protected]>
---
drivers/misc/fastrpc.c | 7 +++++++
include/uapi/misc/fastrpc.h | 2 ++
2 files changed, 9 insertions(+)

diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 1f85ce3eb2e2..4d4dace17ad3 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1441,11 +1441,18 @@ static int fastrpc_init_create_process(struct fastrpc_user *fl,
if (init.attrs & FASTRPC_MODE_UNSIGNED_MODULE)
fl->is_unsigned_pd = true;

+ /* Disregard any system unsigned PD attribute from userspace */
+ init.attrs &= (~FASTRPC_MODE_SYSTEM_UNSIGNED_PD);
+
if (is_session_rejected(fl, fl->is_unsigned_pd)) {
err = -EACCES;
goto err;
}

+ /* Trusted apps will be launched as system unsigned PDs */
+ if (!fl->untrusted_process && fl->is_unsigned_pd)
+ init.attrs |= FASTRPC_MODE_SYSTEM_UNSIGNED_PD;
+
if (init.filelen > INIT_FILELEN_MAX) {
err = -EINVAL;
goto err;
diff --git a/include/uapi/misc/fastrpc.h b/include/uapi/misc/fastrpc.h
index f33d914d8f46..3b3279bb2cf9 100644
--- a/include/uapi/misc/fastrpc.h
+++ b/include/uapi/misc/fastrpc.h
@@ -62,6 +62,8 @@ enum fastrpc_proc_attr {
FASTRPC_MODE_SYSTEM_PROCESS = (1 << 5),
/* Macro for Prvileged Process */
FASTRPC_MODE_PRIVILEGED = (1 << 6),
+ /* Macro for system unsigned PD */
+ FASTRPC_MODE_SYSTEM_UNSIGNED_PD = (1 << 17),
};

/* Fastrpc attribute for memory protection of buffers */
--
2.43.0

2024-05-08 05:46:18

by Ekansh Gupta

[permalink] [raw]

Subject: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support

Static PDs on the audio and sensor domains are expected to support
PD restart. The kernel resource handling for the PDs are expected
to be handled by fastrpc driver. For this, there is a requirement
of PD service locator to get the event notifications for static PD
services. Also when events are received, the driver needs to handle
based on PD states. Added changes to add service locator for audio
and sensor domain static PDs and handle the PD restart sequence.

Signed-off-by: Ekansh Gupta <[email protected]>
---
drivers/misc/Kconfig | 1 +
drivers/misc/fastrpc.c | 226 ++++++++++++++++++++++++++++++++++++++---
2 files changed, 215 insertions(+), 12 deletions(-)

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 4fb291f0bf7c..0d854da9e85a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -282,6 +282,7 @@ config QCOM_FASTRPC
depends on RPMSG
select DMA_SHARED_BUFFER
select QCOM_SCM
+ select QCOM_PDR_HELPERS
help
Provides a communication mechanism that allows for clients to
make remote method invocations across processor boundary to
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 4d4dace17ad3..c37edcc881a5 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -22,6 +22,7 @@
#include <linux/firmware/qcom/qcom_scm.h>
#include <uapi/misc/fastrpc.h>
#include <linux/of_reserved_mem.h>
+#include <linux/soc/qcom/pdr.h>

#define ADSP_DOMAIN_ID (0)
#define MDSP_DOMAIN_ID (1)
@@ -29,6 +30,7 @@
#define CDSP_DOMAIN_ID (3)
#define FASTRPC_DEV_MAX 4 /* adsp, mdsp, slpi, cdsp*/
#define FASTRPC_MAX_SESSIONS 14
+#define FASTRPC_MAX_SPD 4
#define FASTRPC_MAX_VMIDS 16
#define FASTRPC_ALIGN 128
#define FASTRPC_MAX_FDLIST 16
@@ -105,6 +107,18 @@

#define miscdev_to_fdevice(d) container_of(d, struct fastrpc_device, miscdev)

+#define AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME "audio_pdr_adsp"
+#define AUDIO_PDR_ADSP_SERVICE_NAME "avs/audio"
+#define ADSP_AUDIOPD_NAME "msm/adsp/audio_pd"
+
+#define SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME "sensors_pdr_adsp"
+#define SENSORS_PDR_ADSP_SERVICE_NAME "tms/servreg"
+#define ADSP_SENSORPD_NAME "msm/adsp/sensor_pd"
+
+#define SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME "sensors_pdr_slpi"
+#define SENSORS_PDR_SLPI_SERVICE_NAME SENSORS_PDR_ADSP_SERVICE_NAME
+#define SLPI_SENSORPD_NAME "msm/slpi/sensor_pd"
+
static const char *domains[FASTRPC_DEV_MAX] = { "adsp", "mdsp",
"sdsp", "cdsp"};
struct fastrpc_phy_page {
@@ -260,6 +274,16 @@ struct fastrpc_session_ctx {
bool valid;
};

+struct fastrpc_static_pd {
+ char *servloc_name;
+ char *spdname;
+ void *pdrhandle;
+ u64 pdrcount;
+ u64 prevpdrcount;
+ atomic_t ispdup;
+ struct fastrpc_channel_ctx *cctx;
+};
+
struct fastrpc_channel_ctx {
int domain_id;
int sesscount;
@@ -267,6 +291,7 @@ struct fastrpc_channel_ctx {
struct qcom_scm_vmperm vmperms[FASTRPC_MAX_VMIDS];
struct rpmsg_device *rpdev;
struct fastrpc_session_ctx session[FASTRPC_MAX_SESSIONS];
+ struct fastrpc_static_pd spd[FASTRPC_MAX_SPD];
spinlock_t lock;
struct idr ctx_idr;
struct list_head users;
@@ -304,6 +329,7 @@ struct fastrpc_user {
bool is_secure_dev;
bool is_unsigned_pd;
bool untrusted_process;
+ char *servloc_name;
/* Lock for lists */
spinlock_t lock;
/* lock for allocations */
@@ -1260,6 +1286,50 @@ static int fastrpc_mmap_remove_ssr(struct fastrpc_channel_ctx *cctx)
return 0;
}

+static int fastrpc_get_spd_session(struct fastrpc_channel_ctx *cctx,
+ char *servloc_name)
+{
+ int i, session = -1;
+
+ for (i = 0; i < FASTRPC_MAX_SPD ; i++) {
+ if (!cctx->spd[i].servloc_name)
+ continue;
+ if (!strcmp(servloc_name, cctx->spd[i].servloc_name)) {
+ session = i;
+ break;
+ }
+ }
+
+ return session;
+}
+
+static int fastrpc_mmap_remove_pdr(struct fastrpc_user *fl)
+{
+ int err = 0, session = -1;
+
+ if (!fl)
+ return -EBADF;
+
+ session = fastrpc_get_spd_session(fl->cctx, fl->servloc_name);
+ if (session < 0)
+ return -EUSERS;
+
+ if (atomic_read(&fl->cctx->spd[session].ispdup) == 0)
+ return -ENOTCONN;
+
+ if (fl->cctx->spd[session].pdrcount !=
+ fl->cctx->spd[session].prevpdrcount) {
+ err = fastrpc_mmap_remove_ssr(fl->cctx);
+ if (err)
+ dev_info(&fl->cctx->rpdev->dev,
+ "failed to unmap remote heap (err %d)\n", err);
+ fl->cctx->spd[session].prevpdrcount =
+ fl->cctx->spd[session].pdrcount;
+ }
+
+ return err;
+}
+
static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
char __user *argp)
{
@@ -1309,6 +1379,18 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
goto err_name;
}

+ fl->servloc_name = AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME;
+
+ if (!strcmp(name, "audiopd")) {
+ /*
+ * Remove any previous mappings in case process is trying
+ * to reconnect after a PD restart on remote subsystem.
+ */
+ err = fastrpc_mmap_remove_pdr(fl);
+ if (err)
+ goto err_name;
+ }
+
if (!fl->cctx->staticpd_status) {
err = fastrpc_remote_heap_alloc(fl, fl->sctx->dev, init.memlen, &buf);
if (err)
@@ -1724,6 +1806,13 @@ static int fastrpc_init_attach(struct fastrpc_user *fl, int pd)
sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_ATTACH, 1, 0);
fl->pd = pd;

+ if (pd == SENSORS_PD) {
+ if (fl->cctx->domain_id == ADSP_DOMAIN_ID)
+ fl->servloc_name = SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME;
+ else if (fl->cctx->domain_id == SDSP_DOMAIN_ID)
+ fl->servloc_name = SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME;
+ }
+
return fastrpc_internal_invoke(fl, true, FASTRPC_INIT_HANDLE,
sc, &args[0]);
}
@@ -2322,6 +2411,72 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int cmd,
return err;
}

+static void fastrpc_notify_users(struct fastrpc_user *user)
+{
+ struct fastrpc_invoke_ctx *ctx;
+
+ spin_lock(&user->lock);
+ list_for_each_entry(ctx, &user->pending, node) {
+ ctx->retval = -EPIPE;
+ complete(&ctx->work);
+ }
+ spin_unlock(&user->lock);
+}
+
+static void fastrpc_notify_pdr_drivers(struct fastrpc_channel_ctx *cctx,
+ char *servloc_name)
+{
+ struct fastrpc_user *fl;
+ unsigned long flags;
+
+ spin_lock_irqsave(&cctx->lock, flags);
+ list_for_each_entry(fl, &cctx->users, user) {
+ if (fl->servloc_name && !strcmp(servloc_name, fl->servloc_name))
+ fastrpc_notify_users(fl);
+ }
+ spin_unlock_irqrestore(&cctx->lock, flags);
+}
+
+static void fastrpc_pdr_cb(int state, char *service_path, void *priv)
+{
+ struct fastrpc_static_pd *spd = (struct fastrpc_static_pd *)priv;
+ struct fastrpc_channel_ctx *cctx;
+ unsigned long flags;
+
+ if (!spd)
+ return;
+
+ cctx = spd->cctx;
+ switch (state) {
+ case SERVREG_SERVICE_STATE_DOWN:
+ dev_info(&cctx->rpdev->dev,
+ "%s: %s (%s) is down for PDR on %s\n",
+ __func__, spd->spdname,
+ spd->servloc_name,
+ domains[cctx->domain_id]);
+ spin_lock_irqsave(&cctx->lock, flags);
+ spd->pdrcount++;
+ atomic_set(&spd->ispdup, 0);
+ spin_unlock_irqrestore(&cctx->lock, flags);
+ if (!strcmp(spd->servloc_name,
+ AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME))
+ cctx->staticpd_status = false;
+
+ fastrpc_notify_pdr_drivers(cctx, spd->servloc_name);
+ break;
+ case SERVREG_SERVICE_STATE_UP:
+ dev_info(&cctx->rpdev->dev,
+ "%s: %s (%s) is up for PDR on %s\n",
+ __func__, spd->spdname,
+ spd->servloc_name,
+ domains[cctx->domain_id]);
+ atomic_set(&spd->ispdup, 1);
+ break;
+ default:
+ break;
+ }
+}
+
static const struct file_operations fastrpc_fops = {
.open = fastrpc_device_open,
.release = fastrpc_device_release,
@@ -2441,6 +2596,39 @@ static int fastrpc_device_register(struct device *dev, struct fastrpc_channel_ct
return err;
}

+static int fastrpc_setup_service_locator(struct fastrpc_channel_ctx *cctx, char *client_name,
+ char *service_name, char *service_path, int domain, int spd_session)
+{
+ int err = 0;
+ struct pdr_handle *handle = NULL;
+ struct pdr_service *service = NULL;
+
+ /* Register the service locator's callback function */
+ handle = pdr_handle_alloc(fastrpc_pdr_cb, &cctx->spd[spd_session]);
+ if (IS_ERR(handle)) {
+ err = PTR_ERR(handle);
+ goto bail;
+ }
+ cctx->spd[spd_session].pdrhandle = handle;
+ cctx->spd[spd_session].servloc_name = client_name;
+ cctx->spd[spd_session].spdname = service_path;
+ cctx->spd[spd_session].cctx = cctx;
+ service = pdr_add_lookup(handle, service_name, service_path);
+ if (IS_ERR(service)) {
+ err = PTR_ERR(service);
+ goto bail;
+ }
+ pr_info("fastrpc: %s: pdr_add_lookup enabled for %s (%s, %s)\n",
+ __func__, service_name, client_name, service_path);
+
+bail:
+ if (err) {
+ pr_warn("fastrpc: %s: failed for %s (%s, %s)with err %d\n",
+ __func__, service_name, client_name, service_path, err);
+ }
+ return err;
+}
+
static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
{
struct device *rdev = &rpdev->dev;
@@ -2519,6 +2707,25 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
goto fdev_error;
}

+ if (domain_id == ADSP_DOMAIN_ID) {
+ err = fastrpc_setup_service_locator(data, AUDIO_PDR_SERVICE_LOCATION_CLIENT_NAME,
+ AUDIO_PDR_ADSP_SERVICE_NAME, ADSP_AUDIOPD_NAME, domain_id, 0);
+ if (err)
+ goto populate_error;
+
+ err = fastrpc_setup_service_locator(data,
+ SENSORS_PDR_ADSP_SERVICE_LOCATION_CLIENT_NAME,
+ SENSORS_PDR_ADSP_SERVICE_NAME, ADSP_SENSORPD_NAME, domain_id, 1);
+ if (err)
+ goto populate_error;
+ } else if (domain_id == SDSP_DOMAIN_ID) {
+ err = fastrpc_setup_service_locator(data,
+ SENSORS_PDR_SLPI_SERVICE_LOCATION_CLIENT_NAME,
+ SENSORS_PDR_SLPI_SERVICE_NAME, SLPI_SENSORPD_NAME, domain_id, 0);
+ if (err)
+ goto populate_error;
+ }
+
kref_init(&data->refcount);

dev_set_drvdata(&rpdev->dev, data);
@@ -2548,18 +2755,6 @@ static int fastrpc_rpmsg_probe(struct rpmsg_device *rpdev)
return err;
}

-static void fastrpc_notify_users(struct fastrpc_user *user)
-{
- struct fastrpc_invoke_ctx *ctx;
-
- spin_lock(&user->lock);
- list_for_each_entry(ctx, &user->pending, node) {
- ctx->retval = -EPIPE;
- complete(&ctx->work);
- }
- spin_unlock(&user->lock);
-}
-
static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev)
{
struct fastrpc_channel_ctx *cctx = dev_get_drvdata(&rpdev->dev);
@@ -2574,6 +2769,13 @@ static void fastrpc_rpmsg_remove(struct rpmsg_device *rpdev)
fastrpc_notify_users(user);
spin_unlock_irqrestore(&cctx->lock, flags);

+ if (cctx->domain_id == ADSP_DOMAIN_ID) {
+ pdr_handle_release(cctx->spd[0].pdrhandle);
+ pdr_handle_release(cctx->spd[1].pdrhandle);
+ } else if (cctx->domain_id == SDSP_DOMAIN_ID) {
+ pdr_handle_release(cctx->spd[0].pdrhandle);
+ }
+
if (cctx->fdevice)
misc_deregister(&cctx->fdevice->miscdev);

--
2.43.0

2024-05-08 21:19:33

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support

Hi Ekansh,

kernel test robot noticed the following build errors:

[auto build test ERROR on char-misc/char-misc-testing]
[also build test ERROR on char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.9-rc7 next-20240508]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Ekansh-Gupta/misc-fastrpc-Redesign-remote-heap-management/20240508-134613
base: char-misc/char-misc-testing
patch link: https://lore.kernel.org/r/20240508054250.2922-6-quic_ekangupt%40quicinc.com
patch subject: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support
config: arm-randconfig-001-20240509 (https://download.01.org/0day-ci/archive/20240509/[email protected]/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240509/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>, old ones prefixed by <<):

WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/video/fbdev/goldfishfb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt6765-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt6765-mipi0a.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt6797-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt6797-mm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt2712-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt2712-mfg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt7622-eth.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt7988-apmixed.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt7988-topckgen.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt7988-infracfg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167-apmixedsys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167-aud.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167-mfgcfg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8167-vdec.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-apmixedsys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-topckgen.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-infra_ao.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-cam.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-imp_iic_wrap.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-ipe.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-mdp.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-mm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-vdec.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8186-wpe.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8188-mfg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-aud.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-cam.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-img.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-imp_iic_wrap.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-ipe.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-msdc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8192-venc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8365-apmixedsys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8365.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8365-apu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8365-mfg.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/mediatek/clk-mt8365-vdec.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun20i-d1-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-h6-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun50i-h6-r-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun6i-rtc-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-a23-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun8i-v3s-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-de-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/clk/sunxi-ng/sun9i-a80-usb-ccu.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/soc/imx/soc-imx8m.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/soc/qcom/spm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/regulator/rt4831-regulator.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/tty/serial/esp32_acm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/char/hw_random/omap-rng.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/iommu/iova.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/bridge/lontium-lt9611.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/bridge/lontium-lt9611uxc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/bridge/sil-sii8620.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/drm_panel_orientation_quirks.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-slimbus.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-spmi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-w1.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-sccb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/misc/fastrpc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/arizona.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/pcf50633-gpio.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/dax/dax.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/cdrom/cdrom.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/hd44780_common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/auxdisplay/line-display.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/phy/phy-am335x-control.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/phy/phy-am335x.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/misc/ezusb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/host/ohci-exynos.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/ch341.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/mxuport.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/navman.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/qcaux.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/usb-serial-simple.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/serial/symbolserial.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/usb/chipidea/ci_hdrc_msm.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/input/touchscreen/cyttsp_i2c_common.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/rtc/rtc-twl.o
WARNING: modpost: drivers/media/i2c/et8ek8/et8ek8: section mismatch in reference: et8ek8_i2c_driver+0x8 (section: .data) -> et8ek8_remove (section: .exit.text)
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/i2c/uda1342.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/tuners/tda9887.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/v4l2-core/v4l2-async.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/v4l2-core/v4l2-fwnode.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/flash/leds-rt4505.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/leds/blink/leds-bcm63138.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-hub.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-master-gpio.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/fsi/fsi-scom.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/spmi/hisi-spmi-controller.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/spmi/spmi-pmic-arb.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/iio/adc/ingenic-adc.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/iio/adc/xilinx-ams.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/iio/buffer/kfifo_buf.o
>> ERROR: modpost: "qmi_txn_init" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_send_request" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_txn_cancel" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_txn_wait" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_add_lookup" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_handle_init" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_handle_release" [drivers/soc/qcom/pdr_interface.ko] undefined!
>> ERROR: modpost: "qmi_response_type_v01_ei" [drivers/soc/qcom/pdr_interface.ko] undefined!

Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for QCOM_PDR_HELPERS
Depends on [n]: NET [=n]
Selected by [m]:
- QCOM_FASTRPC [=m] && (ARCH_QCOM [=n] || COMPILE_TEST [=y]) && RPMSG [=m]

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

2024-05-08 22:00:57

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support

2024-05-09 09:59:23

by kernel test robot

[permalink] [raw]

Subject: Re: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support

Hi Ekansh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.9-rc7 next-20240509]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Ekansh-Gupta/misc-fastrpc-Redesign-remote-heap-management/20240508-134613
base: char-misc/char-misc-testing
patch link: https://lore.kernel.org/r/20240508054250.2922-6-quic_ekangupt%40quicinc.com
patch subject: [PATCH v1 5/5] misc: fastrpc: Add static PD restart support
config: i386-kismet-CONFIG_QCOM_PDR_HELPERS-CONFIG_QCOM_FASTRPC-0-0 (https://download.01.org/0day-ci/archive/20240509/[email protected]/config)
reproduce: (https://download.01.org/0day-ci/archive/20240509/[email protected]/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

kismet warnings: (new ones prefixed by >>)
>> kismet: WARNING: unmet direct dependencies detected for QCOM_PDR_HELPERS when selected by QCOM_FASTRPC
WARNING: unmet direct dependencies detected for QCOM_PDR_HELPERS
Depends on [n]: NET [=n]
Selected by [y]:
- QCOM_FASTRPC [=y] && (ARCH_QCOM || COMPILE_TEST [=y]) && RPMSG [=y]

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki