kernel 5.7.8

1 files changed, 113 insertions, 0 deletions

diff --git a/SOURCES/0001-device-use-regular-PRI-accessors-in-chipset-detectio.patch b/SOURCES/0001-device-use-regular-PRI-accessors-in-chipset-detectio.patch
new file mode 100644
index 0000000..ec43451
--- /dev/null
+++ b/SOURCES/0001-device-use-regular-PRI-accessors-in-chipset-detectio.patch
@@ -0,0 +1,113 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ben Skeggs <bskeggs@redhat.com>
+Date: Thu, 30 Apr 2020 14:08:53 +1000
+Subject: [PATCH] device: use regular PRI accessors in chipset detection
+
+Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
+---
+ .../gpu/drm/nouveau/nvkm/engine/device/base.c | 31 ++++++++-----------
+ 1 file changed, 13 insertions(+), 18 deletions(-)
+
+diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+index f977dddcd809..5b90c2a1bf3d 100644
+--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
++++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c
+@@ -2925,9 +2925,9 @@ nvkm_device_del(struct nvkm_device **pdevice)
+ }
+
+ static inline bool
+-nvkm_device_endianness(void __iomem *pri)
++nvkm_device_endianness(struct nvkm_device *device)
+ {
+-	u32 boot1 = ioread32_native(pri + 0x000004) & 0x01000001;
++	u32 boot1 = nvkm_rd32(device, 0x000004) & 0x01000001;
+ #ifdef __BIG_ENDIAN
+ 	if (!boot1)
+ 		return false;
+@@ -2949,7 +2949,6 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 	struct nvkm_subdev *subdev;
+ 	u64 mmio_base, mmio_size;
+ 	u32 boot0, boot1, strap;
+-	void __iomem *map = NULL;
+ 	int ret = -EEXIST, i;
+ 	unsigned chipset;
+
+@@ -2976,8 +2975,8 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 	mmio_size = device->func->resource_size(device, 0);
+
+ 	if (detect || mmio) {
+-		map = ioremap(mmio_base, mmio_size);
+-		if (map == NULL) {
++		device->pri = ioremap(mmio_base, mmio_size);
++		if (device->pri == NULL) {
+ 			nvdev_error(device, "unable to map PRI\n");
+ 			ret = -ENOMEM;
+ 			goto done;
+@@ -2987,10 +2986,10 @@ 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 */
+-		if (!nvkm_device_endianness(map)) {
+-			iowrite32_native(0x01000001, map + 0x000004);
+-			ioread32_native(map);
+-			if (!nvkm_device_endianness(map)) {
++		if (!nvkm_device_endianness(device)) {
++			nvkm_wr32(device, 0x000004, 0x01000001);
++			nvkm_rd32(device, 0x000000);
++			if (!nvkm_device_endianness(device)) {
+ 				nvdev_error(device,
+ 					    "GPU not supported on big-endian\n");
+ 				ret = -ENOSYS;
+@@ -2998,7 +2997,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 			}
+ 		}
+
+-		boot0 = ioread32_native(map + 0x000000);
++		boot0 = nvkm_rd32(device, 0x000000);
+
+ 		/* chipset can be overridden for devel/testing purposes */
+ 		chipset = nvkm_longopt(device->cfgopt, "NvChipset", 0);
+@@ -3157,7 +3156,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 			   device->chip->name, boot0);
+
+ 		/* vGPU detection */
+-		boot1 = ioread32_native(map + 0x000004);
++		boot1 = nvkm_rd32(device, 0x0000004);
+ 		if (device->card_type >= TU100 && (boot1 & 0x00030000)) {
+ 			nvdev_info(device, "vGPUs are not supported\n");
+ 			ret = -ENODEV;
+@@ -3165,7 +3164,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 		}
+
+ 		/* read strapping information */
+-		strap = ioread32_native(map + 0x101000);
++		strap = nvkm_rd32(device, 0x101000);
+
+ 		/* determine frequency of timing crystal */
+ 		if ( device->card_type <= NV_10 || device->chipset < 0x17 ||
+@@ -3187,10 +3186,6 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+ 	if (!device->name)
+ 		device->name = device->chip->name;
+
+-	if (mmio) {
+-		device->pri = map;
+-	}
+-
+ 	mutex_init(&device->mutex);
+
+ 	for (i = 0; i < NVKM_SUBDEV_NR; i++) {
+@@ -3278,9 +3273,9 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
+
+ 	ret = 0;
+ done:
+-	if (map && (!mmio || ret)) {
++	if (device->pri && (!mmio || ret)) {
++		iounmap(device->pri);
+ 		device->pri = NULL;
+-		iounmap(map);
+ 	}
+ 	mutex_unlock(&nv_devices_mutex);
+ 	return ret;
+-- 
+2.26.2
+