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Diffstat (limited to 'package/kernel/mac80211/patches/372-0001-brcmfmac-expose-device-memory-to-devcoredump-subsyst.patch')
-rw-r--r--package/kernel/mac80211/patches/372-0001-brcmfmac-expose-device-memory-to-devcoredump-subsyst.patch347
1 files changed, 0 insertions, 347 deletions
diff --git a/package/kernel/mac80211/patches/372-0001-brcmfmac-expose-device-memory-to-devcoredump-subsyst.patch b/package/kernel/mac80211/patches/372-0001-brcmfmac-expose-device-memory-to-devcoredump-subsyst.patch
deleted file mode 100644
index cf3f278871..0000000000
--- a/package/kernel/mac80211/patches/372-0001-brcmfmac-expose-device-memory-to-devcoredump-subsyst.patch
+++ /dev/null
@@ -1,347 +0,0 @@
-From: Arend van Spriel <arend@broadcom.com>
-Date: Thu, 8 Oct 2015 20:33:11 +0200
-Subject: [PATCH] brcmfmac: expose device memory to devcoredump subsystem
-
-Upon PSM watchdog event received from firmware the driver will obtain
-a memory snapshot of the device and expose it to user-space through
-the devcoredump framework. This will trigger a uevent.
-
-Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
-Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
-Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
-Signed-off-by: Arend van Spriel <arend@broadcom.com>
-Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
----
-
---- a/drivers/net/wireless/brcm80211/Kconfig
-+++ b/drivers/net/wireless/brcm80211/Kconfig
-@@ -85,5 +85,6 @@ config BRCM_TRACING
- config BRCMDBG
- bool "Broadcom driver debug functions"
- depends on BRCMSMAC || BRCMFMAC
-+ select WANT_DEV_COREDUMP
- ---help---
- Selecting this enables additional code for debug purposes.
---- a/drivers/net/wireless/brcm80211/brcmfmac/bus.h
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/bus.h
-@@ -65,6 +65,8 @@ struct brcmf_bus_dcmd {
- * @rxctl: receive a control response message from dongle.
- * @gettxq: obtain a reference of bus transmit queue (optional).
- * @wowl_config: specify if dongle is configured for wowl when going to suspend
-+ * @get_ramsize: obtain size of device memory.
-+ * @get_memdump: obtain device memory dump in provided buffer.
- *
- * This structure provides an abstract interface towards the
- * bus specific driver. For control messages to common driver
-@@ -79,6 +81,8 @@ struct brcmf_bus_ops {
- int (*rxctl)(struct device *dev, unsigned char *msg, uint len);
- struct pktq * (*gettxq)(struct device *dev);
- void (*wowl_config)(struct device *dev, bool enabled);
-+ size_t (*get_ramsize)(struct device *dev);
-+ int (*get_memdump)(struct device *dev, void *data, size_t len);
- };
-
-
-@@ -185,6 +189,23 @@ void brcmf_bus_wowl_config(struct brcmf_
- bus->ops->wowl_config(bus->dev, enabled);
- }
-
-+static inline size_t brcmf_bus_get_ramsize(struct brcmf_bus *bus)
-+{
-+ if (!bus->ops->get_ramsize)
-+ return 0;
-+
-+ return bus->ops->get_ramsize(bus->dev);
-+}
-+
-+static inline
-+int brcmf_bus_get_memdump(struct brcmf_bus *bus, void *data, size_t len)
-+{
-+ if (!bus->ops->get_memdump)
-+ return -EOPNOTSUPP;
-+
-+ return bus->ops->get_memdump(bus->dev, data, len);
-+}
-+
- /*
- * interface functions from common layer
- */
---- a/drivers/net/wireless/brcm80211/brcmfmac/core.c
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/core.c
-@@ -957,8 +957,8 @@ int brcmf_attach(struct device *dev)
- drvr->bus_if = dev_get_drvdata(dev);
- drvr->bus_if->drvr = drvr;
-
-- /* create device debugfs folder */
-- brcmf_debugfs_attach(drvr);
-+ /* attach debug facilities */
-+ brcmf_debug_attach(drvr);
-
- /* Attach and link in the protocol */
- ret = brcmf_proto_attach(drvr);
-@@ -1155,7 +1155,7 @@ void brcmf_detach(struct device *dev)
-
- brcmf_proto_detach(drvr);
-
-- brcmf_debugfs_detach(drvr);
-+ brcmf_debug_detach(drvr);
- bus_if->drvr = NULL;
- kfree(drvr);
- }
---- a/drivers/net/wireless/brcm80211/brcmfmac/debug.c
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/debug.c
-@@ -16,15 +16,45 @@
- #include <linux/debugfs.h>
- #include <linux/netdevice.h>
- #include <linux/module.h>
-+#include <linux/devcoredump.h>
-
- #include <brcmu_wifi.h>
- #include <brcmu_utils.h>
- #include "core.h"
- #include "bus.h"
-+#include "fweh.h"
- #include "debug.h"
-
- static struct dentry *root_folder;
-
-+static int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,
-+ size_t len)
-+{
-+ void *dump;
-+ size_t ramsize;
-+
-+ ramsize = brcmf_bus_get_ramsize(bus);
-+ if (ramsize) {
-+ dump = vzalloc(len + ramsize);
-+ if (!dump)
-+ return -ENOMEM;
-+ memcpy(dump, data, len);
-+ brcmf_bus_get_memdump(bus, dump + len, ramsize);
-+ dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);
-+ }
-+ return 0;
-+}
-+
-+static int brcmf_debug_psm_watchdog_notify(struct brcmf_if *ifp,
-+ const struct brcmf_event_msg *evtmsg,
-+ void *data)
-+{
-+ brcmf_dbg(TRACE, "enter: idx=%d\n", ifp->bssidx);
-+
-+ return brcmf_debug_create_memdump(ifp->drvr->bus_if, data,
-+ evtmsg->datalen);
-+}
-+
- void brcmf_debugfs_init(void)
- {
- root_folder = debugfs_create_dir(KBUILD_MODNAME, NULL);
-@@ -41,7 +71,7 @@ void brcmf_debugfs_exit(void)
- root_folder = NULL;
- }
-
--int brcmf_debugfs_attach(struct brcmf_pub *drvr)
-+int brcmf_debug_attach(struct brcmf_pub *drvr)
- {
- struct device *dev = drvr->bus_if->dev;
-
-@@ -49,12 +79,18 @@ int brcmf_debugfs_attach(struct brcmf_pu
- return -ENODEV;
-
- drvr->dbgfs_dir = debugfs_create_dir(dev_name(dev), root_folder);
-+ if (IS_ERR(drvr->dbgfs_dir))
-+ return PTR_ERR(drvr->dbgfs_dir);
-
-- return PTR_ERR_OR_ZERO(drvr->dbgfs_dir);
-+
-+ return brcmf_fweh_register(drvr, BRCMF_E_PSM_WATCHDOG,
-+ brcmf_debug_psm_watchdog_notify);
- }
-
--void brcmf_debugfs_detach(struct brcmf_pub *drvr)
-+void brcmf_debug_detach(struct brcmf_pub *drvr)
- {
-+ brcmf_fweh_unregister(drvr, BRCMF_E_PSM_WATCHDOG);
-+
- if (!IS_ERR_OR_NULL(drvr->dbgfs_dir))
- debugfs_remove_recursive(drvr->dbgfs_dir);
- }
---- a/drivers/net/wireless/brcm80211/brcmfmac/debug.h
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/debug.h
-@@ -109,8 +109,8 @@ struct brcmf_pub;
- #ifdef DEBUG
- void brcmf_debugfs_init(void);
- void brcmf_debugfs_exit(void);
--int brcmf_debugfs_attach(struct brcmf_pub *drvr);
--void brcmf_debugfs_detach(struct brcmf_pub *drvr);
-+int brcmf_debug_attach(struct brcmf_pub *drvr);
-+void brcmf_debug_detach(struct brcmf_pub *drvr);
- struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
- int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
- int (*read_fn)(struct seq_file *seq, void *data));
-@@ -121,11 +121,11 @@ static inline void brcmf_debugfs_init(vo
- static inline void brcmf_debugfs_exit(void)
- {
- }
--static inline int brcmf_debugfs_attach(struct brcmf_pub *drvr)
-+static inline int brcmf_debug_attach(struct brcmf_pub *drvr)
- {
- return 0;
- }
--static inline void brcmf_debugfs_detach(struct brcmf_pub *drvr)
-+static inline void brcmf_debug_detach(struct brcmf_pub *drvr)
- {
- }
- static inline
---- a/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/pcie.c
-@@ -448,6 +448,47 @@ brcmf_pcie_copy_mem_todev(struct brcmf_p
- }
-
-
-+static void
-+brcmf_pcie_copy_dev_tomem(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
-+ void *dstaddr, u32 len)
-+{
-+ void __iomem *address = devinfo->tcm + mem_offset;
-+ __le32 *dst32;
-+ __le16 *dst16;
-+ u8 *dst8;
-+
-+ if (((ulong)address & 4) || ((ulong)dstaddr & 4) || (len & 4)) {
-+ if (((ulong)address & 2) || ((ulong)dstaddr & 2) || (len & 2)) {
-+ dst8 = (u8 *)dstaddr;
-+ while (len) {
-+ *dst8 = ioread8(address);
-+ address++;
-+ dst8++;
-+ len--;
-+ }
-+ } else {
-+ len = len / 2;
-+ dst16 = (__le16 *)dstaddr;
-+ while (len) {
-+ *dst16 = cpu_to_le16(ioread16(address));
-+ address += 2;
-+ dst16++;
-+ len--;
-+ }
-+ }
-+ } else {
-+ len = len / 4;
-+ dst32 = (__le32 *)dstaddr;
-+ while (len) {
-+ *dst32 = cpu_to_le32(ioread32(address));
-+ address += 4;
-+ dst32++;
-+ len--;
-+ }
-+ }
-+}
-+
-+
- #define WRITECC32(devinfo, reg, value) brcmf_pcie_write_reg32(devinfo, \
- CHIPCREGOFFS(reg), value)
-
-@@ -1352,12 +1393,36 @@ static void brcmf_pcie_wowl_config(struc
- }
-
-
-+static size_t brcmf_pcie_get_ramsize(struct device *dev)
-+{
-+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-+ struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
-+ struct brcmf_pciedev_info *devinfo = buspub->devinfo;
-+
-+ return devinfo->ci->ramsize - devinfo->ci->srsize;
-+}
-+
-+
-+static int brcmf_pcie_get_memdump(struct device *dev, void *data, size_t len)
-+{
-+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-+ struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
-+ struct brcmf_pciedev_info *devinfo = buspub->devinfo;
-+
-+ brcmf_dbg(PCIE, "dump at 0x%08X: len=%zu\n", devinfo->ci->rambase, len);
-+ brcmf_pcie_copy_dev_tomem(devinfo, devinfo->ci->rambase, data, len);
-+ return 0;
-+}
-+
-+
- static struct brcmf_bus_ops brcmf_pcie_bus_ops = {
- .txdata = brcmf_pcie_tx,
- .stop = brcmf_pcie_down,
- .txctl = brcmf_pcie_tx_ctlpkt,
- .rxctl = brcmf_pcie_rx_ctlpkt,
- .wowl_config = brcmf_pcie_wowl_config,
-+ .get_ramsize = brcmf_pcie_get_ramsize,
-+ .get_memdump = brcmf_pcie_get_memdump,
- };
-
-
---- a/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
-+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio.c
-@@ -3539,6 +3539,51 @@ done:
- return err;
- }
-
-+static size_t brcmf_sdio_bus_get_ramsize(struct device *dev)
-+{
-+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-+ struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
-+ struct brcmf_sdio *bus = sdiodev->bus;
-+
-+ return bus->ci->ramsize - bus->ci->srsize;
-+}
-+
-+static int brcmf_sdio_bus_get_memdump(struct device *dev, void *data,
-+ size_t mem_size)
-+{
-+ struct brcmf_bus *bus_if = dev_get_drvdata(dev);
-+ struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio;
-+ struct brcmf_sdio *bus = sdiodev->bus;
-+ int err;
-+ int address;
-+ int offset;
-+ int len;
-+
-+ brcmf_dbg(INFO, "dump at 0x%08x: size=%zu\n", bus->ci->rambase,
-+ mem_size);
-+
-+ address = bus->ci->rambase;
-+ offset = err = 0;
-+ sdio_claim_host(sdiodev->func[1]);
-+ while (offset < mem_size) {
-+ len = ((offset + MEMBLOCK) < mem_size) ? MEMBLOCK :
-+ mem_size - offset;
-+ err = brcmf_sdiod_ramrw(sdiodev, false, address, data, len);
-+ if (err) {
-+ brcmf_err("error %d on reading %d membytes at 0x%08x\n",
-+ err, len, address);
-+ goto done;
-+ }
-+ data += len;
-+ offset += len;
-+ address += len;
-+ }
-+
-+done:
-+ sdio_release_host(sdiodev->func[1]);
-+ return err;
-+}
-+
- void brcmf_sdio_trigger_dpc(struct brcmf_sdio *bus)
- {
- if (!bus->dpc_triggered) {
-@@ -3987,7 +4032,9 @@ static struct brcmf_bus_ops brcmf_sdio_b
- .txctl = brcmf_sdio_bus_txctl,
- .rxctl = brcmf_sdio_bus_rxctl,
- .gettxq = brcmf_sdio_bus_gettxq,
-- .wowl_config = brcmf_sdio_wowl_config
-+ .wowl_config = brcmf_sdio_wowl_config,
-+ .get_ramsize = brcmf_sdio_bus_get_ramsize,
-+ .get_memdump = brcmf_sdio_bus_get_memdump,
- };
-
- static void brcmf_sdio_firmware_callback(struct device *dev,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 18:03:41 +0000