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update i915 vga arbiter patch

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This commit is contained in:
xiota
2025-12-25 02:59:11 +00:00
parent f456ab8fa2
commit 013028353e
3 changed files with 25 additions and 49 deletions
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7
.SRCINFO
View File

@@ -4,9 +4,6 @@ pkgbase = linux-vfio
pkgrel = 1
url = https://www.kernel.org
arch = x86_64
arch = x86_64_v2
arch = x86_64_v3
arch = x86_64_v4
license = GPL-2.0-or-later
makedepends = bc
makedepends = cpio
@@ -29,7 +26,7 @@ pkgbase = linux-vfio
source = https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-6.18.2.tar.sign
source = config-6.18.2::https://gitlab.archlinux.org/archlinux/packaging/packages/linux/-/raw/6.18.2.arch2-1/config
source = 1001-6.14.0-add-acs-overrides.patch
source = 1002-6.17.0-i915-vga-arbiter.patch
source = 1002-6.18.0-i915-vga-arbiter.patch
source = https://github.com/archlinux/linux/releases/download/v6.18.2-arch2/linux-v6.18.2-arch2.patch.zst
source = https://github.com/archlinux/linux/releases/download/v6.18.2-arch2/linux-v6.18.2-arch2.patch.zst.sig
validpgpkeys = ABAF11C65A2970B130ABE3C479BE3E4300411886
@@ -39,7 +36,7 @@ pkgbase = linux-vfio
sha256sums = SKIP
sha256sums = SKIP
sha256sums = 6bca6264da6717402ec89ec5ed06b8997fe3df7a20a3a57eb5a85f64e12bc396
sha256sums = 7aa1b5da09f5d4485bbe07f28725c9750dca544f7c7d66ffb0c822236cc14897
sha256sums = 1063a64ae704938ea34e2731c357f99c192965cf8980187062589bbf2c2511ec
sha256sums = SKIP
sha256sums = SKIP

61
1002-6.17.0-i915-vga-arbiter.patch → 1002-6.18.0-i915-vga-arbiter.patch
View File

@@ -1,23 +1,22 @@
From c3ef7b73136fa897006d5b11de8a68962000bc22 Mon Sep 17 00:00:00 2001
From: xiota <>
Date: Fri, 10 Oct 2025 11:24:47 +0000
From 8d0bbb8f0f4e901d112be6c50715a6f1a6091e0e Mon Sep 17 00:00:00 2001
From: xiota <aur@mentalfossa.com>
Date: Thu, 25 Dec 2025 02:36:25 +0000
Subject: [PATCH] i915-vga-arbiter
---
.../drm/i915/display/intel_display_driver.c | 18 ++++++++--
.../drm/i915/display/intel_display_driver.c | 18 +++++++++--
.../drm/i915/display/intel_display_driver.h | 1 +
.../drm/i915/display/intel_display_params.c | 3 ++
.../drm/i915/display/intel_display_params.h | 1 +
drivers/gpu/drm/i915/display/intel_vga.c | 34 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_vga.c | 31 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_vga.h | 4 +++
.../gpu/drm/xe/compat-i915-headers/i915_drv.h | 6 ++++
7 files changed, 64 insertions(+), 3 deletions(-)
6 files changed, 55 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_driver.c b/drivers/gpu/drm/i915/display/intel_display_driver.c
index 8586ba102..5c8ce811a 100644
index cf1c14412..653cb0640 100644
--- a/drivers/gpu/drm/i915/display/intel_display_driver.c
+++ b/drivers/gpu/drm/i915/display/intel_display_driver.c
@@ -31,6 +31,7 @@
@@ -32,6 +32,7 @@
#include "intel_display_debugfs.h"
#include "intel_display_driver.h"
#include "intel_display_irq.h"
@@ -25,14 +24,14 @@ index 8586ba102..5c8ce811a 100644
#include "intel_display_power.h"
#include "intel_display_types.h"
#include "intel_display_wa.h"
@@ -219,9 +220,11 @@ int intel_display_driver_probe_noirq(struct intel_display *display)
@@ -220,9 +221,11 @@ int intel_display_driver_probe_noirq(struct intel_display *display)
intel_bios_init(display);
- ret = intel_vga_register(display);
- if (ret)
- goto cleanup_bios;
+ if (!display->params.enable_hd_vgaarb || !HAS_PCH_SPLIT(i915)) {
+ if (!display->params.enable_hd_vgaarb || !HAS_PCH_SPLIT(display)) {
+ ret = intel_vga_register(display);
+ if (ret)
+ goto cleanup_bios;
@@ -40,7 +39,7 @@ index 8586ba102..5c8ce811a 100644
intel_psr_dc5_dc6_wa_init(display);
@@ -552,6 +555,12 @@ int intel_display_driver_probe(struct intel_display *display)
@@ -553,6 +556,12 @@ int intel_display_driver_probe(struct intel_display *display)
intel_overlay_setup(display);
@@ -53,7 +52,7 @@ index 8586ba102..5c8ce811a 100644
/* Only enable hotplug handling once the fbdev is fully set up. */
intel_hpd_init(display);
@@ -602,6 +611,8 @@ void intel_display_driver_remove(struct intel_display *display)
@@ -603,6 +612,8 @@ void intel_display_driver_remove(struct intel_display *display)
if (!HAS_DISPLAY(display))
return;
@@ -62,7 +61,7 @@ index 8586ba102..5c8ce811a 100644
flush_workqueue(display->wq.flip);
flush_workqueue(display->wq.modeset);
flush_workqueue(display->wq.cleanup);
@@ -632,6 +643,7 @@ void intel_display_driver_remove_noirq(struct intel_display *display)
@@ -633,6 +644,7 @@ void intel_display_driver_remove_noirq(struct intel_display *display)
intel_unregister_dsm_handler();
/* flush any delayed tasks or pending work */
@@ -83,7 +82,7 @@ index 2966ff91b..ca0dc7577 100644
void intel_display_driver_init_hw(struct intel_display *display);
void intel_display_driver_early_probe(struct intel_display *display);
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.c b/drivers/gpu/drm/i915/display/intel_display_params.c
index 75316247e..844176964 100644
index 2aed110c5..db4fbf207 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.c
+++ b/drivers/gpu/drm/i915/display/intel_display_params.c
@@ -102,6 +102,9 @@ intel_display_param_named_unsafe(force_reset_modeset_test, bool, 0400,
@@ -97,7 +96,7 @@ index 75316247e..844176964 100644
"Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions.");
diff --git a/drivers/gpu/drm/i915/display/intel_display_params.h b/drivers/gpu/drm/i915/display/intel_display_params.h
index 784e6bae8..23e697cbe 100644
index b01bc5700..27dd77805 100644
--- a/drivers/gpu/drm/i915/display/intel_display_params.h
+++ b/drivers/gpu/drm/i915/display/intel_display_params.h
@@ -41,6 +41,7 @@ struct drm_printer;
@@ -109,7 +108,7 @@ index 784e6bae8..23e697cbe 100644
param(bool, nuclear_pageflip, false, 0400) \
param(bool, enable_dp_mst, true, 0600) \
diff --git a/drivers/gpu/drm/i915/display/intel_vga.c b/drivers/gpu/drm/i915/display/intel_vga.c
index 6e125564d..3921e27be 100644
index 6e125564d..dd7e45f89 100644
--- a/drivers/gpu/drm/i915/display/intel_vga.c
+++ b/drivers/gpu/drm/i915/display/intel_vga.c
@@ -13,8 +13,10 @@
@@ -123,16 +122,15 @@ index 6e125564d..3921e27be 100644
#include "intel_vga.h"
#include "intel_vga_regs.h"
@@ -76,6 +78,38 @@ void intel_vga_disable(struct intel_display *display)
@@ -76,6 +78,35 @@ void intel_vga_disable(struct intel_display *display)
intel_de_posting_read(display, vga_reg);
}
+void intel_vga_enable_mem(struct intel_display *display)
+{
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
+ struct drm_i915_private *i915 = pdev_to_i915(pdev);
+ /* Enable VGA memory on Intel HD */
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(i915)) {
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(display)) {
+ vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
+ outb(inb(VGA_MIS_R) | (1 << 1), VGA_MIS_W);
+ vga_set_legacy_decoding(pdev, VGA_RSRC_LEGACY_IO |
@@ -146,9 +144,8 @@ index 6e125564d..3921e27be 100644
+void intel_vga_disable_mem(struct intel_display *display)
+{
+ struct pci_dev *pdev = to_pci_dev(display->drm->dev);
+ struct drm_i915_private *i915 = pdev_to_i915(pdev);
+ /* Disable VGA memory on Intel HD */
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(i915)) {
+ if (display->params.enable_hd_vgaarb && HAS_PCH_SPLIT(display)) {
+ vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
+ outb(inb(VGA_MIS_R) & ~(1 << 1), VGA_MIS_W);
+ vga_set_legacy_decoding(pdev, VGA_RSRC_LEGACY_IO |
@@ -157,7 +154,6 @@ index 6e125564d..3921e27be 100644
+ vga_put(pdev, VGA_RSRC_LEGACY_IO);
+ }
+}
+
+
void intel_vga_reset_io_mem(struct intel_display *display)
{
@@ -175,23 +171,6 @@ index 16d699f3b..d91a6cf67 100644
+void intel_vga_disable_mem(struct intel_display *display);
+
#endif /* __INTEL_VGA_H__ */
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
index 9b7572e06..043734cf0 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_drv.h
@@ -21,6 +21,12 @@ static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
return container_of(dev, struct drm_i915_private, drm);
}
+static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
+{
+ struct drm_device *drm = pci_get_drvdata(pdev);
+ return drm ? to_i915(drm) : NULL;
+}
+
/* compat platform checks only for soc/ usage */
#define IS_PLATFORM(xe, x) ((xe)->info.platform == x)
#define IS_I915G(dev_priv) (dev_priv && 0)
--
2.51.0
2.52.0

6
PKGBUILD
View File

@@ -31,7 +31,7 @@ pkgrel=1
pkgdesc='Linux'
url='https://www.kernel.org'
license=('GPL-2.0-or-later')
arch=('x86_64' 'x86_64_v2' 'x86_64_v3' 'x86_64_v4')
arch=('x86_64')
makedepends=(
bc
@@ -82,11 +82,11 @@ validpgpkeys=(
if [[ "${_build_vfio::1}" == "t" ]]; then
source+=(
1001-6.14.0-add-acs-overrides.patch # updated from https://lkml.org/lkml/2013/5/30/513
1002-6.17.0-i915-vga-arbiter.patch # updated from https://lkml.org/lkml/2014/5/9/517
1002-6.18.0-i915-vga-arbiter.patch # updated from https://lkml.org/lkml/2014/5/9/517
)
sha256sums+=(
'6bca6264da6717402ec89ec5ed06b8997fe3df7a20a3a57eb5a85f64e12bc396'
'7aa1b5da09f5d4485bbe07f28725c9750dca544f7c7d66ffb0c822236cc14897'
'1063a64ae704938ea34e2731c357f99c192965cf8980187062589bbf2c2511ec'
)
fi