From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-pf1-x443.google.com ([2607:f8b0:4864:20::443]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1giDd8-0006WN-4G for barebox@lists.infradead.org; Sat, 12 Jan 2019 07:22:57 +0000 Received: by mail-pf1-x443.google.com with SMTP id b7so8001813pfi.8 for ; Fri, 11 Jan 2019 23:22:53 -0800 (PST) From: Andrey Smirnov Date: Fri, 11 Jan 2019 23:22:23 -0800 Message-Id: <20190112072234.21878-6-andrew.smirnov@gmail.com> In-Reply-To: <20190112072234.21878-1-andrew.smirnov@gmail.com> References: <20190112072234.21878-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 v2 05/16] PCI: Store and reuse BAR offsets To: barebox@lists.infradead.org Cc: Andrey Smirnov Save and reuse BAR offsets in dedicated constants instead of repeating the same expression multiple times. No functional change intended. Signed-off-by: Andrey Smirnov --- drivers/pci/pci.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 666b457257..ee8afa7e87 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -169,16 +169,18 @@ static void setup_device(struct pci_dev *dev, int max_bar) cmd & ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY)); for (bar = 0; bar < max_bar; bar++) { + const int pci_base_address_0 = PCI_BASE_ADDRESS_0 + bar * 4; + const int pci_base_address_1 = PCI_BASE_ADDRESS_1 + bar * 4; resource_size_t *last; u32 orig, mask, size; unsigned long flags; const char *kind; int r; - pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, &orig); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, 0xfffffffe); - pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, &mask); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, orig); + pci_read_config_dword(dev, pci_base_address_0, &orig); + pci_write_config_dword(dev, pci_base_address_0, 0xfffffffe); + pci_read_config_dword(dev, pci_base_address_0, &mask); + pci_write_config_dword(dev, pci_base_address_0, orig); if (mask == 0 || mask == 0xffffffff) { pr_debug("pbar%d set bad mask\n", bar); @@ -220,8 +222,7 @@ static void setup_device(struct pci_dev *dev, int max_bar) } *last = ALIGN(*last, size); - pci_write_config_dword(dev, PCI_BASE_ADDRESS_0 + bar * 4, - *last); + pci_write_config_dword(dev, pci_base_address_0, *last); dev->resource[bar].flags = flags; dev->resource[bar].start = *last; dev->resource[bar].end = dev->resource[bar].start + size - 1; @@ -232,8 +233,7 @@ static void setup_device(struct pci_dev *dev, int max_bar) if (mask & PCI_BASE_ADDRESS_MEM_TYPE_64) { dev->resource[bar].flags |= IORESOURCE_MEM_64; - pci_write_config_dword(dev, - PCI_BASE_ADDRESS_1 + bar * 4, 0); + pci_write_config_dword(dev, pci_base_address_1, 0); bar++; } } -- 2.20.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox