diff options
Diffstat (limited to 'package/kernel/mac80211/patches/312-v4.16-0010-brcmfmac-Remove-repeated-calls-to-brcmf_chip_get_cor.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/312-v4.16-0010-brcmfmac-Remove-repeated-calls-to-brcmf_chip_get_cor.patch | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/312-v4.16-0010-brcmfmac-Remove-repeated-calls-to-brcmf_chip_get_cor.patch b/package/kernel/mac80211/patches/312-v4.16-0010-brcmfmac-Remove-repeated-calls-to-brcmf_chip_get_cor.patch new file mode 100644 index 0000000000..69fbf5c80f --- /dev/null +++ b/package/kernel/mac80211/patches/312-v4.16-0010-brcmfmac-Remove-repeated-calls-to-brcmf_chip_get_cor.patch @@ -0,0 +1,128 @@ +From 21a10846d09db3c5e3bdfb0be0fc7aa9fdc7000a Mon Sep 17 00:00:00 2001 +From: Ian Molton <ian@mnementh.co.uk> +Date: Fri, 8 Dec 2017 13:10:35 +0100 +Subject: [PATCH] brcmfmac: Remove repeated calls to brcmf_chip_get_core() + +There is no need to repeatdly call brcmf_chip_get_core(), which +traverses a list of cores every time its called (including during +register access code!). + +Call it once, and store a pointer to the core structure. The existing +code does nto keep track of users of the cores anyway, and even so, this +will allow for easier refcounting in future. + +Signed-off-by: Ian Molton <ian@mnementh.co.uk> +Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> +Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + .../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 25 +++++++++++++--------- + 1 file changed, 15 insertions(+), 10 deletions(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +@@ -436,6 +436,7 @@ struct brcmf_sdio_count { + struct brcmf_sdio { + struct brcmf_sdio_dev *sdiodev; /* sdio device handler */ + struct brcmf_chip *ci; /* Chip info struct */ ++ struct brcmf_core *sdio_core; /* sdio core info struct */ + + u32 hostintmask; /* Copy of Host Interrupt Mask */ + atomic_t intstatus; /* Intstatus bits (events) pending */ +@@ -665,10 +666,9 @@ static bool data_ok(struct brcmf_sdio *b + */ + static int r_sdreg32(struct brcmf_sdio *bus, u32 *regvar, u32 offset) + { +- struct brcmf_core *core; ++ struct brcmf_core *core = bus->sdio_core; + int ret; + +- core = brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV); + *regvar = brcmf_sdiod_readl(bus->sdiodev, core->base + offset, &ret); + + return ret; +@@ -676,10 +676,9 @@ static int r_sdreg32(struct brcmf_sdio * + + static int w_sdreg32(struct brcmf_sdio *bus, u32 regval, u32 reg_offset) + { +- struct brcmf_core *core; ++ struct brcmf_core *core = bus->sdio_core; + int ret; + +- core = brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV); + brcmf_sdiod_writel(bus->sdiodev, core->base + reg_offset, regval, &ret); + + return ret; +@@ -2495,12 +2494,11 @@ static inline void brcmf_sdio_clrintr(st + + static int brcmf_sdio_intr_rstatus(struct brcmf_sdio *bus) + { +- struct brcmf_core *buscore; ++ struct brcmf_core *buscore = bus->sdio_core; + u32 addr; + unsigned long val; + int ret; + +- buscore = brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV); + addr = buscore->base + SD_REG(intstatus); + + val = brcmf_sdiod_readl(bus->sdiodev, addr, &ret); +@@ -3377,13 +3375,14 @@ static void brcmf_sdio_sr_init(struct br + /* enable KSO bit */ + static int brcmf_sdio_kso_init(struct brcmf_sdio *bus) + { ++ struct brcmf_core *core = bus->sdio_core; + u8 val; + int err = 0; + + brcmf_dbg(TRACE, "Enter\n"); + + /* KSO bit added in SDIO core rev 12 */ +- if (brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV)->rev < 12) ++ if (core->rev < 12) + return 0; + + val = brcmf_sdiod_readb(bus->sdiodev, SBSDIO_FUNC1_SLEEPCSR, &err); +@@ -3412,6 +3411,7 @@ static int brcmf_sdio_bus_preinit(struct + 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; ++ struct brcmf_core *core = bus->sdio_core; + uint pad_size; + u32 value; + int err; +@@ -3420,7 +3420,7 @@ static int brcmf_sdio_bus_preinit(struct + * a device perspective, ie. bus:txglom affects the + * bus transfers from device to host. + */ +- if (brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV)->rev < 12) { ++ if (core->rev < 12) { + /* for sdio core rev < 12, disable txgloming */ + value = 0; + err = brcmf_iovar_data_set(dev, "bus:txglom", &value, +@@ -3758,11 +3758,10 @@ static void brcmf_sdio_buscore_activate( + u32 rstvec) + { + struct brcmf_sdio_dev *sdiodev = ctx; +- struct brcmf_core *core; ++ struct brcmf_core *core = sdiodev->bus->sdio_core; + u32 reg_addr; + + /* clear all interrupts */ +- core = brcmf_chip_get_core(chip, BCMA_CORE_SDIO_DEV); + reg_addr = core->base + SD_REG(intstatus); + brcmf_sdiod_writel(sdiodev, reg_addr, 0xFFFFFFFF, NULL); + +@@ -3843,6 +3842,12 @@ brcmf_sdio_probe_attach(struct brcmf_sdi + bus->ci = NULL; + goto fail; + } ++ ++ /* Pick up the SDIO core info struct from chip.c */ ++ bus->sdio_core = brcmf_chip_get_core(bus->ci, BCMA_CORE_SDIO_DEV); ++ if (!bus->sdio_core) ++ goto fail; ++ + sdiodev->settings = brcmf_get_module_param(sdiodev->dev, + BRCMF_BUSTYPE_SDIO, + bus->ci->chip, |