kernel-5.7.0-0.rc7.20200528gitb0c3ba31be3e.1

* Thu May 28 2020 CKI@GitLab <cki-project@redhat.com> [5.7.0-0.rc7.20200528gitb0c3ba31be3e.1]
- b0c3ba31be3e rebase
- Updated changelog for the release based on 444fc5cde643 ("CKI@GitLab")
Resolves: rhbz#

Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/0001-device-detect-if-changing-endianness-failed.patch b/0001-device-detect-if-changing-endianness-failed.patch
new file mode 100644
index 000000000..1089b7e87
--- /dev/null
+++ b/0001-device-detect-if-changing-endianness-failed.patch
@@ -0,0 +1,62 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Karol Herbst <kherbst@redhat.com>
+Date: Tue, 28 Apr 2020 18:54:03 +0200
+Subject: [PATCH] device: detect if changing endianness failed
+
+v2: relax the checks a little
+
+Signed-off-by: Karol Herbst <kherbst@redhat.com>
+Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
+---
+ .../gpu/drm/nouveau/nvkm/engine/device/base.c | 26 +++++++++++++++----
+ 1 file changed, 21 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+index 37589f36546d..c732074bf790 100644
+--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
++++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+@@ -2924,6 +2924,20 @@ nvkm_device_del(struct nvkm_device **pdevice)
+ 	}
+ }
+
++static inline bool
++nvkm_device_endianness(void __iomem *pri)
++{
++	u32 boot1 = ioread32_native(pri + 0x000004) & 0x01000001;
++#ifdef __BIG_ENDIAN
++	if (!boot1)
++		return false;
++#else
++	if (boot1)
++		return false;
++#endif
++	return true;
++}
++
+ int
+ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 		 const struct nvkm_device_quirk *quirk,
+@@ -2973,13 +2987,15 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 	/* identify the chipset, and determine classes of subdev/engines */
+ 	if (detect) {
+ 		/* switch mmio to cpu's native endianness */
+-#ifndef __BIG_ENDIAN
+-		if (ioread32_native(map + 0x000004) != 0x00000000) {
+-#else
+-		if (ioread32_native(map + 0x000004) == 0x00000000) {
+-#endif
++		if (!nvkm_device_endianness(map)) {
+ 			iowrite32_native(0x01000001, map + 0x000004);
+ 			ioread32_native(map);
++			if (!nvkm_device_endianness(map)) {
++				nvdev_error(device,
++					    "GPU not supported on big-endian\n");
++				ret = -ENOSYS;
++				goto done;
++			}
+ 		}
+
+ 		/* read boot0 and strapping information */
+-- 
+2.26.2
+