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rtlwifi: rtl818x: Deinline indexed IO functions, save 21568 bytes
rtl818x_ioread8_idx: 151 bytes, 29 calls rtl818x_ioread16_idx: 151 bytes, 11 calls rtl818x_ioread32_idx: 151 bytes, 5 calls rtl818x_iowrite8_idx: 157 bytes, 117 calls rtl818x_iowrite16_idx: 158 bytes, 74 calls rtl818x_iowrite32_idx: 157 bytes, 22 calls Each of these functions has a pair of mutex lock/unlock ops, both of these ops perform atomic updates of memory (on x86, it boils down to "lock cmpxchg %reg,mem" insn), which are 4-8 times more expensive than call+return. text data bss dec hex filename 95894242 20860288 35991552 152746082 91ab862 vmlinux_before 95872674 20860320 35991552 152724546 91a6442 vmlinux Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Larry Finger <Larry.Finger@lwfinger.net> CC: Chaoming Li <chaoming_li@realsil.com.cn> CC: linux-wireless@vger.kernel.org CC: linux-kernel@vger.kernel.org Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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ede00a5ceb
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aae555d302
@ -160,104 +160,40 @@ struct rtl8187_priv {
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void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
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static inline u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 idx)
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{
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u8 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits8;
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mutex_unlock(&priv->io_mutex);
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return val;
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}
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u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 idx);
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static inline u8 rtl818x_ioread8(struct rtl8187_priv *priv, u8 *addr)
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{
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return rtl818x_ioread8_idx(priv, addr, 0);
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}
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static inline u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u8 idx)
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{
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__le16 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits16;
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mutex_unlock(&priv->io_mutex);
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return le16_to_cpu(val);
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}
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u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u8 idx);
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static inline u16 rtl818x_ioread16(struct rtl8187_priv *priv, __le16 *addr)
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{
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return rtl818x_ioread16_idx(priv, addr, 0);
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}
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static inline u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u8 idx)
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{
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__le32 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits32;
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mutex_unlock(&priv->io_mutex);
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return le32_to_cpu(val);
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}
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u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u8 idx);
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static inline u32 rtl818x_ioread32(struct rtl8187_priv *priv, __le32 *addr)
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{
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return rtl818x_ioread32_idx(priv, addr, 0);
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}
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static inline void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits8 = val;
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 val, u8 idx);
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static inline void rtl818x_iowrite8(struct rtl8187_priv *priv, u8 *addr, u8 val)
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{
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rtl818x_iowrite8_idx(priv, addr, val, 0);
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}
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static inline void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u16 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits16 = cpu_to_le16(val);
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u16 val, u8 idx);
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static inline void rtl818x_iowrite16(struct rtl8187_priv *priv, __le16 *addr,
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u16 val)
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@ -265,19 +201,8 @@ static inline void rtl818x_iowrite16(struct rtl8187_priv *priv, __le16 *addr,
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rtl818x_iowrite16_idx(priv, addr, val, 0);
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}
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static inline void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u32 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits32 = cpu_to_le32(val);
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u32 val, u8 idx);
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static inline void rtl818x_iowrite32(struct rtl8187_priv *priv, __le32 *addr,
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u32 val)
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@ -22,6 +22,99 @@
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#include "rtl8187.h"
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#include "rtl8225.h"
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u8 rtl818x_ioread8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 idx)
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{
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u8 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits8;
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mutex_unlock(&priv->io_mutex);
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return val;
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}
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u16 rtl818x_ioread16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u8 idx)
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{
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__le16 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits16;
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mutex_unlock(&priv->io_mutex);
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return le16_to_cpu(val);
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}
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u32 rtl818x_ioread32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u8 idx)
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{
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__le32 val;
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mutex_lock(&priv->io_mutex);
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usb_control_msg(priv->udev, usb_rcvctrlpipe(priv->udev, 0),
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RTL8187_REQ_GET_REG, RTL8187_REQT_READ,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
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val = priv->io_dmabuf->bits32;
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mutex_unlock(&priv->io_mutex);
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return le32_to_cpu(val);
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}
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void rtl818x_iowrite8_idx(struct rtl8187_priv *priv,
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u8 *addr, u8 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits8 = val;
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits8, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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void rtl818x_iowrite16_idx(struct rtl8187_priv *priv,
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__le16 *addr, u16 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits16 = cpu_to_le16(val);
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits16, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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void rtl818x_iowrite32_idx(struct rtl8187_priv *priv,
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__le32 *addr, u32 val, u8 idx)
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{
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mutex_lock(&priv->io_mutex);
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priv->io_dmabuf->bits32 = cpu_to_le32(val);
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usb_control_msg(priv->udev, usb_sndctrlpipe(priv->udev, 0),
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RTL8187_REQ_SET_REG, RTL8187_REQT_WRITE,
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(unsigned long)addr, idx & 0x03,
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&priv->io_dmabuf->bits32, sizeof(val), HZ / 2);
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mutex_unlock(&priv->io_mutex);
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}
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static void rtl8225_write_bitbang(struct ieee80211_hw *dev, u8 addr, u16 data)
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{
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struct rtl8187_priv *priv = dev->priv;
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