Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268051AbTGTT43 (ORCPT ); Sun, 20 Jul 2003 15:56:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268098AbTGTT43 (ORCPT ); Sun, 20 Jul 2003 15:56:29 -0400 Received: from smtp-out1.iol.cz ([194.228.2.86]:16330 "EHLO smtp-out1.iol.cz") by vger.kernel.org with ESMTP id S268051AbTGTT4U (ORCPT ); Sun, 20 Jul 2003 15:56:20 -0400 Date: Sun, 20 Jul 2003 22:10:50 +0200 From: Pavel Machek To: Peter Osterlund Cc: Jeff Garzik , Kernel Mailing List Subject: Re: Software suspend and RTL 8139too in 2.6.0-test1 Message-ID: <20030720201050.GB292@elf.ucw.cz> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.3i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6094 Lines: 194 Hi! > This patch is needed to make software suspend work with the 8139too > driver loaded. There's more complicated patch at http://mrohne.home.cern.ch/mrohne/P2120/P2120_Linux_S3.html. Could you test it, perhaps? Pavel diff -Nru -X dontdiff linux-2.5.64bk11/drivers/net/8139too.c linux-2.5.64bk11-p2120/drivers/net/8139too.c --- linux-2.5.64bk11/drivers/net/8139too.c 2003-03-07 10:23:38.000000000 +0100 +++ linux-2.5.64bk11-p2120/drivers/net/8139too.c 2003-03-17 13:04:19.000000000 +0100 @@ -109,6 +109,7 @@ #include #include #include +#include #include #include #include @@ -565,6 +566,7 @@ void *mmio_addr; int drv_flags; struct pci_dev *pci_dev; + u32 pci_state[16]; struct net_device_stats stats; unsigned char *rx_ring; unsigned int cur_rx; /* Index into the Rx buffer of next Rx pkt. */ @@ -1595,6 +1597,8 @@ timeout = next_tick; do { timeout = interruptible_sleep_on_timeout (&tp->thr_wait, timeout); + if (current->flags & PF_FREEZE) + refrigerator(PF_IOTHREAD); } while (!signal_pending (current) && (timeout > 0)); if (signal_pending (current)) { @@ -2562,6 +2566,9 @@ tp->stats.rx_missed_errors += RTL_R32 (RxMissed); RTL_W32 (RxMissed, 0); + pci_save_state (pdev, tp->pci_state); + pci_set_power_state (pdev, 3); + spin_unlock_irqrestore (&tp->lock, flags); return 0; } @@ -2570,11 +2577,15 @@ static int rtl8139_resume (struct pci_dev *pdev) { struct net_device *dev = pci_get_drvdata (pdev); + struct rtl8139_private *tp = dev->priv; if (!netif_running (dev)) return 0; - netif_device_attach (dev); + pci_set_power_state (pdev, 0); + pci_restore_state (pdev, tp->pci_state); + rtl8139_init_ring (dev); rtl8139_hw_start (dev); + netif_device_attach (dev); return 0; } diff -Nru -X dontdiff linux-2.5.64bk11/drivers/pci/pci-driver.c linux-2.5.64bk11-p2120/drivers/pci/pci-driver.c --- linux-2.5.64bk11/drivers/pci/pci-driver.c 2003-03-05 04:29:31.000000000 +0100 +++ linux-2.5.64bk11-p2120/drivers/pci/pci-driver.c 2003-03-17 13:04:19.000000000 +0100 @@ -91,11 +91,9 @@ struct pci_dev * pci_dev = to_pci_dev(dev); if (pci_dev->driver) { - /* We may not call PCI drivers resume at - RESUME_POWER_ON because interrupts are not yet - working at that point. Calling resume at - RESUME_RESTORE_STATE seems like solution. */ - if (level == RESUME_RESTORE_STATE && pci_dev->driver->resume) + if (level == RESUME_POWER_ON && pci_dev->driver->power_on) + pci_dev->driver->power_on(pci_dev); + else if (level == RESUME_RESTORE_STATE && pci_dev->driver->resume) pci_dev->driver->resume(pci_dev); } return 0; diff -Nru -X dontdiff linux-2.5.64bk11/drivers/video/radeonfb.c linux-2.5.64bk11-p2120/drivers/video/radeonfb.c --- linux-2.5.64bk11/drivers/video/radeonfb.c 2003-03-05 04:29:53.000000000 +0100 +++ linux-2.5.64bk11-p2120/drivers/video/radeonfb.c 2003-03-17 13:59:04.000000000 +0100 @@ -402,7 +402,11 @@ u32 mdll, mdll2; #endif /* CONFIG_PMAC_PBOOK */ int asleep; - + +#ifdef CONFIG_PM + u8 pci_state[64]; +#endif /* CONFIG_PM */ + struct radeonfb_info *next; }; @@ -2925,7 +2929,7 @@ switch (pdev->device) { case PCI_DEVICE_ID_ATI_RADEON_LY: case PCI_DEVICE_ID_ATI_RADEON_LZ: - rinfo->video_ram = 8192; + rinfo->video_ram = 8192*1024; break; default: break; @@ -3104,16 +3108,65 @@ pci_resource_len(pdev, 2)); release_mem_region (rinfo->fb_base_phys, pci_resource_len(pdev, 0)); + + pci_set_drvdata (pdev, NULL); kfree (rinfo); } +#ifdef CONFIG_PM +static int radeonfb_save_state (struct pci_dev *pdev, u32 state) +{ + struct radeonfb_info *rinfo = pci_get_drvdata (pdev); + + printk ("radeonfb_save_state\n"); + rinfo->asleep++; + return 0; +} + +static int radeonfb_suspend (struct pci_dev *pdev, u32 state) +{ + struct radeonfb_info *rinfo = pci_get_drvdata (pdev); + + printk ("radeonfb_suspend\n"); + pci_save_state (pdev, (u32 *)rinfo->pci_state); + mdelay (10); + rinfo->asleep++; + return 0; +} + +static int radeonfb_power_on (struct pci_dev *pdev) +{ + struct radeonfb_info *rinfo = pci_get_drvdata (pdev); + + printk ("radeonfb_power_on\n"); + pci_restore_state (pdev, (u32 *)rinfo->pci_state); + mdelay (10); + rinfo->asleep--; + return 0; +} + +static int radeonfb_resume (struct pci_dev *pdev) +{ + struct radeonfb_info *rinfo = pci_get_drvdata (pdev); + + printk ("radeonfb_resume\n"); + rinfo->asleep--; + return 0; +} +#endif /* CONFIG_PM */ static struct pci_driver radeonfb_driver = { name: "radeonfb", id_table: radeonfb_pci_table, probe: radeonfb_pci_register, remove: __devexit_p(radeonfb_pci_unregister), +#ifdef CONFIG_PM + .save_state = radeonfb_save_state, + .suspend = radeonfb_suspend, + .power_on = radeonfb_power_on, + .resume = radeonfb_resume, +#endif /* CONFIG_PM */ }; diff -Nru -X dontdiff linux-2.5.64bk11/include/linux/pci.h linux-2.5.64bk11-p2120/include/linux/pci.h --- linux-2.5.64bk11/include/linux/pci.h 2003-03-17 11:48:10.000000000 +0100 +++ linux-2.5.64bk11-p2120/include/linux/pci.h 2003-03-17 13:04:19.000000000 +0100 @@ -500,6 +500,7 @@ void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ int (*save_state) (struct pci_dev *dev, u32 state); /* Save Device Context */ int (*suspend) (struct pci_dev *dev, u32 state); /* Device suspended */ + int (*power_on) (struct pci_dev *dev); /* Device power on */ int (*resume) (struct pci_dev *dev); /* Device woken up */ int (*enable_wake) (struct pci_dev *dev, u32 state, int enable); /* Enable wake event */ -- When do you have a heart between your knees? [Johanka's followup: and *two* hearts?] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/