Return-path: Received: from mail-oi0-f65.google.com ([209.85.218.65]:54221 "EHLO mail-oi0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557AbdI2TsS (ORCPT ); Fri, 29 Sep 2017 15:48:18 -0400 Received: by mail-oi0-f65.google.com with SMTP id j126so1071803oia.10 for ; Fri, 29 Sep 2017 12:48:18 -0700 (PDT) From: Larry Finger To: kvalo@codeaurora.org Cc: linux-wireless@vger.kernel.org, Ping-Ke Shih , Larry Finger , Yan-Hsuan Chuang , Birming Chiu , Shaofu , Steven Ting Subject: [PATCH 10/10] rtlwifi: Add module parameter ASPM Date: Fri, 29 Sep 2017 14:48:00 -0500 Message-Id: <20170929194800.15617-11-Larry.Finger@lwfinger.net> (sfid-20170929_214820_409832_438CA04D) In-Reply-To: <20170929194800.15617-1-Larry.Finger@lwfinger.net> References: <20170929194800.15617-1-Larry.Finger@lwfinger.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ping-Ke Shih On some platforms, enable ASPM will cause AER error to be logged, thus we use a parameter to selectively turn on ASPM. Signed-off-by: Ping-Ke Shih Signed-off-by: Larry Finger Cc: Yan-Hsuan Chuang Cc: Birming Chiu Cc: Shaofu Cc: Steven Ting --- drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c | 6 +++++- drivers/net/wireless/realtek/rtlwifi/wifi.h | 3 +++ 9 files changed, 43 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c index 57e5d5c1d24b..35de3aeafcc9 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/sw.c @@ -41,6 +41,7 @@ static void rtl88e_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -77,7 +78,7 @@ static void rtl88e_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } int rtl88e_init_sw_vars(struct ieee80211_hw *hw) @@ -276,6 +277,7 @@ static struct rtl_mod_params rtl88ee_mod_params = { .swctrl_lps = false, .fwctrl_lps = false, .msi_support = true, + .aspm_support = 1, .debug_level = 0, .debug_mask = 0, }; @@ -399,6 +401,7 @@ module_param_named(ips, rtl88ee_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl88ee_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl88ee_mod_params.fwctrl_lps, bool, 0444); module_param_named(msi, rtl88ee_mod_params.msi_support, bool, 0444); +module_param_named(aspm, rtl88ee_mod_params.aspm_support, int, 0444); module_param_named(disable_watchdog, rtl88ee_mod_params.disable_watchdog, bool, 0444); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); @@ -406,6 +409,7 @@ MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c index 38f85bfdf0c7..71a6761d3648 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c @@ -44,6 +44,7 @@ static void rtl92c_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -83,7 +84,7 @@ static void rtl92c_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } int rtl92c_init_sw_vars(struct ieee80211_hw *hw) @@ -252,6 +253,7 @@ static struct rtl_mod_params rtl92ce_mod_params = { .inactiveps = true, .swctrl_lps = false, .fwctrl_lps = true, + .aspm_support = 1, .debug_level = 0, .debug_mask = 0, }; @@ -375,10 +377,12 @@ module_param_named(debug_mask, rtl92ce_mod_params.debug_mask, ullong, 0644); module_param_named(ips, rtl92ce_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl92ce_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl92ce_mod_params.fwctrl_lps, bool, 0444); +module_param_named(aspm, rtl92ce_mod_params.aspm_support, int, 0444); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c index a6549f5f6c59..d5ba2bace79b 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/sw.c @@ -40,6 +40,7 @@ static void rtl92d_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -79,7 +80,7 @@ static void rtl92d_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } static int rtl92d_init_sw_vars(struct ieee80211_hw *hw) @@ -254,6 +255,7 @@ static struct rtl_mod_params rtl92de_mod_params = { .inactiveps = true, .swctrl_lps = true, .fwctrl_lps = false, + .aspm_support = 1, .debug_level = 0, .debug_mask = 0, }; @@ -369,11 +371,13 @@ module_param_named(debug_level, rtl92de_mod_params.debug_level, int, 0644); module_param_named(ips, rtl92de_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl92de_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl92de_mod_params.fwctrl_lps, bool, 0444); +module_param_named(aspm, rtl92de_mod_params.aspm_support, int, 0444); module_param_named(debug_mask, rtl92de_mod_params.debug_mask, ullong, 0644); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c index 701493c1f235..ef92a789871d 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/sw.c @@ -44,6 +44,7 @@ static void rtl92ee_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -83,7 +84,7 @@ static void rtl92ee_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } int rtl92ee_init_sw_vars(struct ieee80211_hw *hw) @@ -260,6 +261,7 @@ static struct rtl_mod_params rtl92ee_mod_params = { .fwctrl_lps = true, .msi_support = true, .dma64 = false, + .aspm_support = 1, .debug_level = 0, .debug_mask = 0, }; @@ -378,6 +380,7 @@ module_param_named(swlps, rtl92ee_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl92ee_mod_params.fwctrl_lps, bool, 0444); module_param_named(msi, rtl92ee_mod_params.msi_support, bool, 0444); module_param_named(dma64, rtl92ee_mod_params.dma64, bool, 0444); +module_param_named(aspm, rtl92ee_mod_params.aspm_support, int, 0444); module_param_named(disable_watchdog, rtl92ee_mod_params.disable_watchdog, bool, 0444); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); @@ -386,6 +389,7 @@ MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n"); MODULE_PARM_DESC(dma64, "Set to 1 to use DMA 64 (default 0)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c index d715d537ca0a..d55554b7fa9a 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/sw.c @@ -41,6 +41,7 @@ static void rtl92s_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -77,7 +78,7 @@ static void rtl92s_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 2; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } static void rtl92se_fw_cb(const struct firmware *firmware, void *context) @@ -297,6 +298,7 @@ static struct rtl_mod_params rtl92se_mod_params = { .inactiveps = true, .swctrl_lps = true, .fwctrl_lps = false, + .aspm_support = 2, .debug_level = 0, .debug_mask = 0, }; @@ -422,10 +424,12 @@ module_param_named(debug_mask, rtl92se_mod_params.debug_mask, ullong, 0644); module_param_named(ips, rtl92se_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl92se_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl92se_mod_params.fwctrl_lps, bool, 0444); +module_param_named(aspm, rtl92se_mod_params.aspm_support, int, 0444); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 1)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 0)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c index 97b8bd294aa8..a545ea317323 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/sw.c @@ -46,6 +46,7 @@ static void rtl8723e_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -85,7 +86,7 @@ static void rtl8723e_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } int rtl8723e_init_sw_vars(struct ieee80211_hw *hw) @@ -268,6 +269,7 @@ static struct rtl_mod_params rtl8723e_mod_params = { .inactiveps = true, .swctrl_lps = false, .fwctrl_lps = true, + .aspm_support = 1, .debug_level = 0, .debug_mask = 0, .msi_support = false, @@ -389,6 +391,7 @@ module_param_named(ips, rtl8723e_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl8723e_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl8723e_mod_params.fwctrl_lps, bool, 0444); module_param_named(msi, rtl8723e_mod_params.msi_support, bool, 0444); +module_param_named(aspm, rtl8723e_mod_params.aspm_support, int, 0444); module_param_named(disable_watchdog, rtl8723e_mod_params.disable_watchdog, bool, 0444); MODULE_PARM_DESC(swenc, "Set to 1 for software crypto (default 0)\n"); @@ -396,6 +399,7 @@ MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c index 2b16a1467e78..6a42988aad65 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c @@ -46,6 +46,7 @@ static void rtl8723be_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -82,7 +83,7 @@ static void rtl8723be_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } int rtl8723be_init_sw_vars(struct ieee80211_hw *hw) @@ -271,6 +272,7 @@ static struct rtl_mod_params rtl8723be_mod_params = { .swctrl_lps = false, .fwctrl_lps = true, .msi_support = false, + .aspm_support = 1, .disable_watchdog = false, .debug_level = 0, .debug_mask = 0, @@ -396,6 +398,7 @@ module_param_named(ips, rtl8723be_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl8723be_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl8723be_mod_params.fwctrl_lps, bool, 0444); module_param_named(msi, rtl8723be_mod_params.msi_support, bool, 0444); +module_param_named(aspm, rtl8723be_mod_params.aspm_support, int, 0444); module_param_named(disable_watchdog, rtl8723be_mod_params.disable_watchdog, bool, 0444); module_param_named(ant_sel, rtl8723be_mod_params.ant_sel, int, 0444); @@ -404,6 +407,7 @@ MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 0)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); MODULE_PARM_DESC(disable_watchdog, diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c index 0894ef48ab87..ab5d462b1a3a 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/sw.c @@ -43,6 +43,7 @@ static void rtl8821ae_init_aspm_vars(struct ieee80211_hw *hw) { + struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw)); /*close ASPM for AMD defaultly */ @@ -82,7 +83,7 @@ static void rtl8821ae_init_aspm_vars(struct ieee80211_hw *hw) * 1 - Support ASPM, * 2 - According to chipset. */ - rtlpci->const_support_pciaspm = 1; + rtlpci->const_support_pciaspm = rtlpriv->cfg->mod_params->aspm_support; } /*InitializeVariables8812E*/ @@ -313,6 +314,7 @@ static struct rtl_mod_params rtl8821ae_mod_params = { .swctrl_lps = false, .fwctrl_lps = true, .msi_support = true, + .aspm_support = 1, .int_clear = true, .debug_level = 0, .debug_mask = 0, @@ -444,6 +446,7 @@ module_param_named(ips, rtl8821ae_mod_params.inactiveps, bool, 0444); module_param_named(swlps, rtl8821ae_mod_params.swctrl_lps, bool, 0444); module_param_named(fwlps, rtl8821ae_mod_params.fwctrl_lps, bool, 0444); module_param_named(msi, rtl8821ae_mod_params.msi_support, bool, 0444); +module_param_named(aspm, rtl8821ae_mod_params.aspm_support, int, 0444); module_param_named(disable_watchdog, rtl8821ae_mod_params.disable_watchdog, bool, 0444); module_param_named(int_clear, rtl8821ae_mod_params.int_clear, bool, 0444); @@ -452,6 +455,7 @@ MODULE_PARM_DESC(ips, "Set to 0 to not use link power save (default 1)\n"); MODULE_PARM_DESC(swlps, "Set to 1 to use SW control power save (default 0)\n"); MODULE_PARM_DESC(fwlps, "Set to 1 to use FW control power save (default 1)\n"); MODULE_PARM_DESC(msi, "Set to 1 to use MSI interrupts mode (default 1)\n"); +MODULE_PARM_DESC(aspm, "Set to 1 to enable ASPM (default 1)\n"); MODULE_PARM_DESC(debug_level, "Set debug level (0-5) (default 0)"); MODULE_PARM_DESC(debug_mask, "Set debug mask (default 0)"); MODULE_PARM_DESC(disable_watchdog, "Set to 1 to disable the watchdog (default 0)\n"); diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h index 4decf1e71ba8..7dfc73b554f1 100644 --- a/drivers/net/wireless/realtek/rtlwifi/wifi.h +++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h @@ -2262,6 +2262,9 @@ struct rtl_mod_params { /* default: 0 = dma 32 */ bool dma64; + /* default: 1 = enable aspm */ + int aspm_support; + /* default 0: 1 means disable */ bool disable_watchdog; -- 2.13.5