From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1c1Uua-0003O2-Ut for barebox@lists.infradead.org; Tue, 01 Nov 2016 08:59:19 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7] helo=dude.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.80) (envelope-from ) id 1c1UuF-0004c4-E2 for barebox@lists.infradead.org; Tue, 01 Nov 2016 09:58:55 +0100 From: Lucas Stach Date: Tue, 1 Nov 2016 09:58:51 +0100 Message-Id: <20161101085855.953-1-l.stach@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 1/5] PCI: add some useful debug output To: barebox@lists.infradead.org This makes diagnosing problems in address space allocation much easier. Signed-off-by: Lucas Stach --- drivers/pci/pci.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 191561da0368..46f5d5f7de36 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -179,6 +179,7 @@ static void setup_device(struct pci_dev *dev, int max_bar) pr_debug("BAR does not fit within bus IO res\n"); return; } + pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_io); pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_io); dev->resource[bar].flags = IORESOURCE_IO; last_addr = last_io; @@ -197,6 +198,7 @@ static void setup_device(struct pci_dev *dev, int max_bar) pr_debug("BAR does not fit within bus p-mem res\n"); return; } + pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_mem_pref); pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_mem_pref); dev->resource[bar].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; @@ -215,6 +217,7 @@ static void setup_device(struct pci_dev *dev, int max_bar) pr_debug("BAR does not fit within bus np-mem res\n"); return; } + pr_debug("pbar%d: allocated at 0x%08x\n", bar, last_mem); pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, last_mem); dev->resource[bar].flags = IORESOURCE_MEM; last_addr = last_mem; @@ -286,18 +289,21 @@ static void postscan_setup_bridge(struct pci_dev *dev) if (last_mem) { last_mem = ALIGN(last_mem, SZ_1M); + pr_debug("bridge NP limit at 0x%08x\n", last_mem); pci_write_config_word(dev, PCI_MEMORY_LIMIT, ((last_mem - 1) & 0xfff00000) >> 16); } if (last_mem_pref) { last_mem_pref = ALIGN(last_mem_pref, SZ_1M); + pr_debug("bridge P limit at 0x%08x\n", last_mem_pref); pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, ((last_mem_pref - 1) & 0xfff00000) >> 16); } if (last_io) { last_io = ALIGN(last_io, SZ_4K); + pr_debug("bridge IO limit at 0x%08x\n", last_io); pci_write_config_byte(dev, PCI_IO_LIMIT, ((last_io - 1) & 0x0000f000) >> 8); pci_write_config_word(dev, PCI_IO_LIMIT_UPPER16, -- 2.10.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox