Return-path: Received: from [217.148.43.144] ([217.148.43.144]:48730 "EHLO mnementh.co.uk" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1751291AbdGQQpT (ORCPT ); Mon, 17 Jul 2017 12:45:19 -0400 From: Ian Molton To: linux-wireless@vger.kernel.org Cc: arend.vanspriel@broadcom.com, franky.lin@broadcom.com, hante.meuleman@broadcom.com Subject: [PATCH 25/29] brcmfmac: Remove repeated calls to brcmf_chip_get_core() Date: Mon, 17 Jul 2017 17:16:33 +0100 Message-Id: <20170717161637.4652-26-ian@mnementh.co.uk> (sfid-20170717_184523_834299_D1A1CB13) In-Reply-To: <20170717161637.4652-1-ian@mnementh.co.uk> References: <20170717161637.4652-1-ian@mnementh.co.uk> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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 --- .../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 23 ++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index a72e9d0eb471..aa43e3087908 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -435,6 +435,7 @@ 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 */ @@ -662,10 +663,9 @@ static bool data_ok(struct brcmf_sdio *bus) */ 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; @@ -673,10 +673,9 @@ static int r_sdreg32(struct brcmf_sdio *bus, u32 *regvar, u32 offset) 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; @@ -2477,12 +2476,11 @@ static inline void brcmf_sdio_clrintr(struct brcmf_sdio *bus) 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); @@ -3357,13 +3355,14 @@ static void brcmf_sdio_sr_init(struct brcmf_sdio *bus) /* 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); @@ -3391,6 +3390,7 @@ static int brcmf_sdio_bus_preinit(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; + struct brcmf_core *core = bus->sdio_core; uint pad_size; u32 value; int err; @@ -3399,7 +3399,7 @@ static int brcmf_sdio_bus_preinit(struct device *dev) * 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, @@ -3735,11 +3735,10 @@ static void brcmf_sdio_buscore_activate(void *ctx, struct brcmf_chip *chip, 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); @@ -3818,6 +3817,10 @@ brcmf_sdio_probe_attach(struct brcmf_sdio *bus) 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); + sdiodev->settings = brcmf_get_module_param(sdiodev->dev, BRCMF_BUSTYPE_SDIO, bus->ci->chip, -- 2.11.0