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From: Bjorn Helgaas <helgaas@kernel.org>
To: Huacai Chen <chenhuacai@loongson.cn>
Cc: David Airlie <airlied@linux.ie>,
	dri-devel@lists.freedesktop.org, linux-pci@vger.kernel.org,
	Bjorn Helgaas <bhelgaas@google.com>,
	Xuefeng Li <lixuefeng@loongson.cn>
Subject: [PATCH v2 1/9] PCI/VGA: Move vgaarb to drivers/pci
Date: Thu, 22 Jul 2021 16:29:12 -0500	[thread overview]
Message-ID: <20210722212920.347118-2-helgaas@kernel.org> (raw)
In-Reply-To: <20210722212920.347118-1-helgaas@kernel.org>

From: Bjorn Helgaas <bhelgaas@google.com>

The VGA arbiter is really PCI-specific and doesn't depend on any GPU
things.  Move it to the PCI subsystem.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/gpu/vga/Kconfig           | 19 -------------------
 drivers/gpu/vga/Makefile          |  1 -
 drivers/pci/Kconfig               | 19 +++++++++++++++++++
 drivers/pci/Makefile              |  1 +
 drivers/{gpu/vga => pci}/vgaarb.c |  0
 5 files changed, 20 insertions(+), 20 deletions(-)
 rename drivers/{gpu/vga => pci}/vgaarb.c (100%)

diff --git a/drivers/gpu/vga/Kconfig b/drivers/gpu/vga/Kconfig
index 1ad4c4ef0b5e..eb8b14ab22c3 100644
--- a/drivers/gpu/vga/Kconfig
+++ b/drivers/gpu/vga/Kconfig
@@ -1,23 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
-config VGA_ARB
-	bool "VGA Arbitration" if EXPERT
-	default y
-	depends on (PCI && !S390)
-	help
-	  Some "legacy" VGA devices implemented on PCI typically have the same
-	  hard-decoded addresses as they did on ISA. When multiple PCI devices
-	  are accessed at same time they need some kind of coordination. Please
-	  see Documentation/gpu/vgaarbiter.rst for more details. Select this to
-	  enable VGA arbiter.
-
-config VGA_ARB_MAX_GPUS
-	int "Maximum number of GPUs"
-	default 16
-	depends on VGA_ARB
-	help
-	  Reserves space in the kernel to maintain resource locking for
-	  multiple GPUS.  The overhead for each GPU is very small.
-
 config VGA_SWITCHEROO
 	bool "Laptop Hybrid Graphics - GPU switching support"
 	depends on X86
diff --git a/drivers/gpu/vga/Makefile b/drivers/gpu/vga/Makefile
index e92064442d60..9800620deda3 100644
--- a/drivers/gpu/vga/Makefile
+++ b/drivers/gpu/vga/Makefile
@@ -1,3 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_VGA_ARB)  += vgaarb.o
 obj-$(CONFIG_VGA_SWITCHEROO) += vga_switcheroo.o
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 0c473d75e625..7c9e56d7b857 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -252,6 +252,25 @@ config PCIE_BUS_PEER2PEER
 
 endchoice
 
+config VGA_ARB
+	bool "VGA Arbitration" if EXPERT
+	default y
+	depends on (PCI && !S390)
+	help
+	  Some "legacy" VGA devices implemented on PCI typically have the same
+	  hard-decoded addresses as they did on ISA. When multiple PCI devices
+	  are accessed at same time they need some kind of coordination. Please
+	  see Documentation/gpu/vgaarbiter.rst for more details. Select this to
+	  enable VGA arbiter.
+
+config VGA_ARB_MAX_GPUS
+	int "Maximum number of GPUs"
+	default 16
+	depends on VGA_ARB
+	help
+	  Reserves space in the kernel to maintain resource locking for
+	  multiple GPUS.  The overhead for each GPU is very small.
+
 source "drivers/pci/hotplug/Kconfig"
 source "drivers/pci/controller/Kconfig"
 source "drivers/pci/endpoint/Kconfig"
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index d62c4ac4ae1b..ebe720f69b15 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_PCI_PF_STUB)	+= pci-pf-stub.o
 obj-$(CONFIG_PCI_ECAM)		+= ecam.o
 obj-$(CONFIG_PCI_P2PDMA)	+= p2pdma.o
 obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += xen-pcifront.o
+obj-$(CONFIG_VGA_ARB)		+= vgaarb.o
 
 # Endpoint library must be initialized before its users
 obj-$(CONFIG_PCI_ENDPOINT)	+= endpoint/
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/pci/vgaarb.c
similarity index 100%
rename from drivers/gpu/vga/vgaarb.c
rename to drivers/pci/vgaarb.c
-- 
2.25.1


  reply	other threads:[~2021-07-22 21:29 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22 21:29 [PATCH v2 0/9] PCI/VGA: Rework default VGA device selection Bjorn Helgaas
2021-07-22 21:29 ` Bjorn Helgaas [this message]
2021-07-22 21:38   ` [PATCH v2 1/9] PCI/VGA: Move vgaarb to drivers/pci Randy Dunlap
2021-07-22 21:55     ` Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 2/9] PCI/VGA: Replace full MIT license text with SPDX identifier Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 3/9] PCI/VGA: Use unsigned format string to print lock counts Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 4/9] PCI/VGA: Remove empty vga_arb_device_card_gone() Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 5/9] PCI/VGA: Move vga_arb_integrated_gpu() earlier in file Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 6/9] PCI/VGA: Prefer vga_default_device() Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 7/9] PCI/VGA: Split out vga_arb_update_default_device() Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 8/9] PCI/VGA: Log bridge control messages when adding devices Bjorn Helgaas
2021-07-22 21:29 ` [PATCH v2 9/9] PCI/VGA: Rework default VGA device selection Bjorn Helgaas
     [not found] ` <YPpY/zRTYK3xI6rK@infradead.org>
2021-07-23  8:27   ` [PATCH v2 0/9] " Daniel Vetter
2021-07-23 22:43     ` Bjorn Helgaas
2021-07-27  9:32       ` Daniel Vetter
2021-07-23  9:53 ` Huacai Chen
2021-07-24  0:10   ` Bjorn Helgaas
2021-07-24  9:30     ` Huacai Chen
2021-08-03 17:06       ` Bjorn Helgaas
2021-08-09 18:59         ` Bjorn Helgaas
2021-08-19 21:52           ` Bjorn Helgaas
2021-08-20  4:07             ` Huacai Chen

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