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From: Bjorn Helgaas <helgaas@kernel.org>
To: unlisted-recipients:; (no To-header on input)
Cc: Jason Cooper <jason@lakedaemon.net>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linux-kernel@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Thomas Gleixner <tglx@linutronix.de>,
	Yinghai Lu <yinghai@kernel.org>, Matt Turner <mattst88@gmail.com>,
	Richard Henderson <rth@twiddle.net>
Subject: [PATCH v1 1/6] vgacon: Set VGA struct resource types
Date: Mon, 04 Dec 2017 18:40:04 -0600	[thread overview]
Message-ID: <20171205004003.12535.49385.stgit@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <20171205003525.12535.89924.stgit@bhelgaas-glaptop.roam.corp.google.com>

From: Bjorn Helgaas <bhelgaas@google.com>

Set the resource type when we reserve VGA-related I/O port resources.

The resource code doesn't actually look at the type, so it inserts
resources without a type in the tree correctly even without this change.
But if we ever print a resource without a type, it looks like this:

  vga+ [??? 0x000003c0-0x000003df flags 0x0]

Setting the type means it will be printed correctly as:

  vga+ [io  0x000003c0-0x000003df]

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/alpha/kernel/console.c    |    1 +
 drivers/video/console/vgacon.c |   34 ++++++++++++++++++++++++++--------
 2 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c
index 8e9a41966881..5476279329a6 100644
--- a/arch/alpha/kernel/console.c
+++ b/arch/alpha/kernel/console.c
@@ -21,6 +21,7 @@
 struct pci_controller *pci_vga_hose;
 static struct resource alpha_vga = {
 	.name	= "alpha-vga+",
+	.flags	= IORESOURCE_IO,
 	.start	= 0x3C0,
 	.end	= 0x3DF
 };
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index 445b1dc5d441..a17ba1465815 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -422,7 +422,10 @@ static const char *vgacon_startup(void)
 		vga_video_port_val = VGA_CRT_DM;
 		if ((screen_info.orig_video_ega_bx & 0xff) != 0x10) {
 			static struct resource ega_console_resource =
-			    { .name = "ega", .start = 0x3B0, .end = 0x3BF };
+			    { .name	= "ega",
+			      .flags	= IORESOURCE_IO,
+			      .start	= 0x3B0,
+			      .end	= 0x3BF };
 			vga_video_type = VIDEO_TYPE_EGAM;
 			vga_vram_size = 0x8000;
 			display_desc = "EGA+";
@@ -430,9 +433,15 @@ static const char *vgacon_startup(void)
 					 &ega_console_resource);
 		} else {
 			static struct resource mda1_console_resource =
-			    { .name = "mda", .start = 0x3B0, .end = 0x3BB };
+			    { .name	= "mda",
+			      .flags	= IORESOURCE_IO,
+			      .start	= 0x3B0,
+			      .end	= 0x3BB };
 			static struct resource mda2_console_resource =
-			    { .name = "mda", .start = 0x3BF, .end = 0x3BF };
+			    { .name	= "mda",
+			      .flags	= IORESOURCE_IO,
+			      .start	= 0x3BF,
+			      .end	= 0x3BF };
 			vga_video_type = VIDEO_TYPE_MDA;
 			vga_vram_size = 0x2000;
 			display_desc = "*MDA";
@@ -454,15 +463,21 @@ static const char *vgacon_startup(void)
 			vga_vram_size = 0x8000;
 
 			if (!screen_info.orig_video_isVGA) {
-				static struct resource ega_console_resource
-				    = { .name = "ega", .start = 0x3C0, .end = 0x3DF };
+				static struct resource ega_console_resource =
+				    { .name	= "ega",
+				      .flags	= IORESOURCE_IO,
+				      .start	= 0x3C0,
+				      .end	= 0x3DF };
 				vga_video_type = VIDEO_TYPE_EGAC;
 				display_desc = "EGA";
 				request_resource(&ioport_resource,
 						 &ega_console_resource);
 			} else {
-				static struct resource vga_console_resource
-				    = { .name = "vga+", .start = 0x3C0, .end = 0x3DF };
+				static struct resource vga_console_resource =
+				    { .name	= "vga+",
+				      .flags	= IORESOURCE_IO,
+				      .start	= 0x3C0,
+				      .end	= 0x3DF };
 				vga_video_type = VIDEO_TYPE_VGAC;
 				display_desc = "VGA+";
 				request_resource(&ioport_resource,
@@ -494,7 +509,10 @@ static const char *vgacon_startup(void)
 			}
 		} else {
 			static struct resource cga_console_resource =
-			    { .name = "cga", .start = 0x3D4, .end = 0x3D5 };
+			    { .name	= "cga",
+			      .flags	= IORESOURCE_IO,
+			      .start	= 0x3D4,
+			      .end	= 0x3D5 };
 			vga_video_type = VIDEO_TYPE_CGA;
 			vga_vram_size = 0x2000;
 			display_desc = "*CGA";

  reply	other threads:[~2017-12-05  0:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-05  0:39 [PATCH v1 0/6] resource: Set struct resource types correctly Bjorn Helgaas
2017-12-05  0:40 ` Bjorn Helgaas [this message]
2018-01-03 15:10   ` [PATCH v1 1/6] vgacon: Set VGA struct resource types Bartlomiej Zolnierkiewicz
2017-12-05  0:40 ` [PATCH v1 2/6] MIPS: Set I/O port resource types correctly Bjorn Helgaas
2017-12-05  0:40 ` [PATCH v1 3/6] powerpc: " Bjorn Helgaas
2017-12-05  0:40 ` [PATCH v1 4/6] irqchip/i8259: " Bjorn Helgaas
2017-12-05  0:40 ` [PATCH v1 5/6] resource: Set type of "reserve=" user-specified resources Bjorn Helgaas
2017-12-05  0:40 ` [PATCH v1 6/6] resource: Set type when reserving new regions Bjorn Helgaas

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