Merge branch 'linux-4.19' of git://github.com/skeggsb/linux into drm-next

misc fixes and cleanups for next.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv55CfRonQ0bo2XiitkCiWTjKwhsP=+ZFhoa-BaJ72Ryew@mail.gmail.com

arch/arm/mm/dma-mapping.c

@@ -1151,6 +1151,11 @@ int arm_dma_supported(struct device *dev, u64 mask)
 	return __dma_supported(dev, mask, false);
 }
 
+static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
+{
+	return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
+}
+
 #ifdef CONFIG_ARM_DMA_USE_IOMMU
 
 static int __dma_info_to_prot(enum dma_data_direction dir, unsigned long attrs)
@@ -2296,7 +2301,7 @@ void arm_iommu_detach_device(struct device *dev)
 	iommu_detach_device(mapping->domain, dev);
 	kref_put(&mapping->kref, release_iommu_mapping);
 	to_dma_iommu_mapping(dev) = NULL;
-	set_dma_ops(dev, NULL);
+	set_dma_ops(dev, arm_get_dma_map_ops(dev->archdata.dma_coherent));
 
 	pr_debug("Detached IOMMU controller from %s device.\n", dev_name(dev));
 }
@@ -2357,11 +2362,6 @@ static void arm_teardown_iommu_dma_ops(struct device *dev) { }
 
 #endif	/* CONFIG_ARM_DMA_USE_IOMMU */
 
-static const struct dma_map_ops *arm_get_dma_map_ops(bool coherent)
-{
-	return coherent ? &arm_coherent_dma_ops : &arm_dma_ops;
-}
-
 void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
 			const struct iommu_ops *iommu, bool coherent)
 {

drivers/gpu/drm/nouveau/dispnv04/crtc.c

@@ -1017,7 +1017,7 @@ nv04_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
 	nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.offset);
 	nv_crtc->cursor.show(nv_crtc, true);
 out:
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 	return ret;
 }
 

drivers/gpu/drm/nouveau/dispnv50/disp.c

@@ -136,12 +136,24 @@ nv50_dmac_create(struct nvif_device *device, struct nvif_object *disp,
 {
 	struct nouveau_cli *cli = (void *)device->object.client;
 	struct nv50_disp_core_channel_dma_v0 *args = data;
+	u8 type = NVIF_MEM_COHERENT;
 	int ret;
 
 	mutex_init(&dmac->lock);
 
-	ret = nvif_mem_init_map(&cli->mmu, NVIF_MEM_COHERENT, 0x1000,
-				&dmac->push);
+	/* Pascal added support for 47-bit physical addresses, but some
+	 * parts of EVO still only accept 40-bit PAs.
+	 *
+	 * To avoid issues on systems with large amounts of RAM, and on
+	 * systems where an IOMMU maps pages at a high address, we need
+	 * to allocate push buffers in VRAM instead.
+	 *
+	 * This appears to match NVIDIA's behaviour on Pascal.
+	 */
+	if (device->info.family == NV_DEVICE_INFO_V0_PASCAL)
+		type |= NVIF_MEM_VRAM;
+
+	ret = nvif_mem_init_map(&cli->mmu, type, 0x1000, &dmac->push);
 	if (ret)
 		return ret;
 
@@ -216,6 +228,19 @@ void
 evo_kick(u32 *push, struct nv50_dmac *evoc)
 {
 	struct nv50_dmac *dmac = evoc;
+
+	/* Push buffer fetches are not coherent with BAR1, we need to ensure
+	 * writes have been flushed right through to VRAM before writing PUT.
+	 */
+	if (dmac->push.type & NVIF_MEM_VRAM) {
+		struct nvif_device *device = dmac->base.device;
+		nvif_wr32(&device->object, 0x070000, 0x00000001);
+		nvif_msec(device, 2000,
+			if (!(nvif_rd32(&device->object, 0x070000) & 0x00000002))
+				break;
+		);
+	}
+
 	nvif_wr32(&dmac->base.user, 0x0000, (push - dmac->ptr) << 2);
 	mutex_unlock(&dmac->lock);
 }
@@ -1007,7 +1032,7 @@ nv50_mstm_destroy_connector(struct drm_dp_mst_topology_mgr *mgr,
 	mstc->port = NULL;
 	drm_modeset_unlock(&drm->dev->mode_config.connection_mutex);
 
-	drm_connector_unreference(&mstc->connector);
+	drm_connector_put(&mstc->connector);
 }
 
 static void
@@ -2231,6 +2256,9 @@ nv50_display_create(struct drm_device *dev)
 		connector->funcs->destroy(connector);
 	}
 
+	/* Disable vblank irqs aggressively for power-saving, safe on nv50+ */
+	dev->vblank_disable_immediate = true;
+
 out:
 	if (ret)
 		nv50_display_destroy(dev);

drivers/gpu/drm/nouveau/dispnv50/wndw.c

@@ -586,7 +586,6 @@ nv50_wndw_new_(const struct nv50_wndw_func *func, struct drm_device *dev,
 	wndw->id = index;
 	wndw->interlock.type = interlock_type;
 	wndw->interlock.data = interlock_data;
-	wndw->ctxdma.parent = &wndw->wndw.base.user;
 
 	wndw->ctxdma.parent = &wndw->wndw.base.user;
 	INIT_LIST_HEAD(&wndw->ctxdma.list);

drivers/gpu/drm/nouveau/include/nvif/object.h

@@ -78,7 +78,7 @@ struct nvif_mclass {
 #define nvif_mclass(o,m) ({                                                    \
 	struct nvif_object *object = (o);                                      \
 	struct nvif_sclass *sclass;                                            \
-	const typeof(m[0]) *mclass = (m);                                      \
+	typeof(m[0]) *mclass = (m);                                            \
 	int ret = -ENODEV;                                                     \
 	int cnt, i, j;                                                         \
                                                                                \

drivers/gpu/drm/nouveau/nouveau_abi16.c

@@ -139,7 +139,7 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 	if (chan->ntfy) {
 		nouveau_vma_del(&chan->ntfy_vma);
 		nouveau_bo_unpin(chan->ntfy);
-		drm_gem_object_unreference_unlocked(&chan->ntfy->gem);
+		drm_gem_object_put_unlocked(&chan->ntfy->gem);
 	}
 
 	if (chan->heap.block_size)

drivers/gpu/drm/nouveau/nouveau_debugfs.c

@@ -160,7 +160,11 @@ nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf,
 		args.ustate = value;
 	}
 
+	ret = pm_runtime_get_sync(drm->dev);
+	if (IS_ERR_VALUE(ret) && ret != -EACCES)
+		return ret;
 	ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args));
+	pm_runtime_put_autosuspend(drm->dev);
 	if (ret < 0)
 		return ret;
 

drivers/gpu/drm/nouveau/nouveau_display.c

@@ -205,7 +205,7 @@ nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 
 	if (fb->nvbo)
-		drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
+		drm_gem_object_put_unlocked(&fb->nvbo->gem);
 
 	drm_framebuffer_cleanup(drm_fb);
 	kfree(fb);
@@ -287,7 +287,7 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 	if (ret == 0)
 		return &fb->base;
 
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 	return ERR_PTR(ret);
 }
 
@@ -939,7 +939,7 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 		return ret;
 
 	ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
-	drm_gem_object_unreference_unlocked(&bo->gem);
+	drm_gem_object_put_unlocked(&bo->gem);
 	return ret;
 }
 
@@ -954,7 +954,7 @@ nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 	if (gem) {
 		struct nouveau_bo *bo = nouveau_gem_object(gem);
 		*poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
-		drm_gem_object_unreference_unlocked(gem);
+		drm_gem_object_put_unlocked(gem);
 		return 0;
 	}
 

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -912,8 +912,10 @@ nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
 	get_task_comm(tmpname, current);
 	snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
 
-	if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL)))
-		return ret;
+	if (!(cli = kzalloc(sizeof(*cli), GFP_KERNEL))) {
+		ret = -ENOMEM;
+		goto done;
+	}
 
 	ret = nouveau_cli_init(drm, name, cli);
 	if (ret)

drivers/gpu/drm/nouveau/nouveau_fbcon.c

@@ -429,7 +429,7 @@ nouveau_fbcon_destroy(struct drm_device *dev, struct nouveau_fbdev *fbcon)
 		nouveau_vma_del(&nouveau_fb->vma);
 		nouveau_bo_unmap(nouveau_fb->nvbo);
 		nouveau_bo_unpin(nouveau_fb->nvbo);
-		drm_framebuffer_unreference(&nouveau_fb->base);
+		drm_framebuffer_put(&nouveau_fb->base);
 	}
 
 	return 0;

drivers/gpu/drm/nouveau/nouveau_gem.c

@@ -274,7 +274,7 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
 	}
 
 	/* drop reference from allocate - handle holds it now */
-	drm_gem_object_unreference_unlocked(&nvbo->gem);
+	drm_gem_object_put_unlocked(&nvbo->gem);
 	return ret;
 }
 
@@ -354,7 +354,7 @@ validate_fini_no_ticket(struct validate_op *op, struct nouveau_fence *fence,
 		list_del(&nvbo->entry);
 		nvbo->reserved_by = NULL;
 		ttm_bo_unreserve(&nvbo->bo);
-		drm_gem_object_unreference_unlocked(&nvbo->gem);
+		drm_gem_object_put_unlocked(&nvbo->gem);
 	}
 }
 
@@ -400,14 +400,14 @@ retry:
 		nvbo = nouveau_gem_object(gem);
 		if (nvbo == res_bo) {
 			res_bo = NULL;
-			drm_gem_object_unreference_unlocked(gem);
+			drm_gem_object_put_unlocked(gem);
 			continue;
 		}
 
 		if (nvbo->reserved_by && nvbo->reserved_by == file_priv) {
 			NV_PRINTK(err, cli, "multiple instances of buffer %d on "
 				      "validation list\n", b->handle);
-			drm_gem_object_unreference_unlocked(gem);
+			drm_gem_object_put_unlocked(gem);
 			ret = -EINVAL;
 			break;
 		}
@@ -894,7 +894,7 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
 		ret = lret;
 
 	nouveau_bo_sync_for_cpu(nvbo);
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 
 	return ret;
 }
@@ -913,7 +913,7 @@ nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
 	nvbo = nouveau_gem_object(gem);
 
 	nouveau_bo_sync_for_device(nvbo);
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 	return 0;
 }
 
@@ -930,7 +930,7 @@ nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
 		return -ENOENT;
 
 	ret = nouveau_gem_info(file_priv, gem, req);
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 	return ret;
 }
 

drivers/gpu/drm/nouveau/nouveau_hwmon.c

@@ -69,8 +69,8 @@ nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d,
 	struct nvkm_therm *therm = nvxx_therm(&drm->client.device);
 	long value;
 
-	if (kstrtol(buf, 10, &value) == -EINVAL)
-		return count;
+	if (kstrtol(buf, 10, &value))
+		return -EINVAL;
 
 	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST,
 			value / 1000);
@@ -102,8 +102,8 @@ nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d,
 	struct nvkm_therm *therm = nvxx_therm(&drm->client.device);
 	long value;
 
-	if (kstrtol(buf, 10, &value) == -EINVAL)
-		return count;
+	if (kstrtol(buf, 10, &value))
+		return -EINVAL;
 
 	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST,
 			value / 1000);
@@ -156,7 +156,7 @@ nouveau_hwmon_set_pwm1_min(struct device *d, struct device_attribute *a,
 	long value;
 	int ret;
 
-	if (kstrtol(buf, 10, &value) == -EINVAL)
+	if (kstrtol(buf, 10, &value))
 		return -EINVAL;
 
 	ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MIN_DUTY, value);
@@ -179,7 +179,7 @@ nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a,
 	long value;
 	int ret;
 
-	if (kstrtol(buf, 10, &value) == -EINVAL)
+	if (kstrtol(buf, 10, &value))
 		return -EINVAL;
 
 	ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MAX_DUTY, value);

drivers/gpu/drm/nouveau/nouveau_platform.c

@@ -36,7 +36,7 @@ static int nouveau_platform_probe(struct platform_device *pdev)
 
 	ret = drm_dev_register(drm, 0);
 	if (ret < 0) {
-		drm_dev_unref(drm);
+		drm_dev_put(drm);
 		return ret;
 	}
 

drivers/gpu/drm/nouveau/nvkm/core/engine.c

@@ -87,11 +87,12 @@ nvkm_engine_info(struct nvkm_subdev *subdev, u64 mthd, u64 *data)
 {
 	struct nvkm_engine *engine = nvkm_engine(subdev);
 	if (engine->func->info) {
-		if ((engine = nvkm_engine_ref(engine))) {
+		if (!IS_ERR((engine = nvkm_engine_ref(engine)))) {
 			int ret = engine->func->info(engine, mthd, data);
 			nvkm_engine_unref(&engine);
 			return ret;
 		}
+		return PTR_ERR(engine);
 	}
 	return -ENOSYS;
 }

drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c

@@ -23,6 +23,10 @@
 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
 #include "priv.h"
 
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+#include <asm/dma-iommu.h>
+#endif
+
 static int
 nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev)
 {
@@ -105,6 +109,15 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
 	unsigned long pgsize_bitmap;
 	int ret;
 
+#if IS_ENABLED(CONFIG_ARM_DMA_USE_IOMMU)
+	if (dev->archdata.mapping) {
+		struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev);
+
+		arm_iommu_detach_device(dev);
+		arm_iommu_release_mapping(mapping);
+	}
+#endif
+
 	if (!tdev->func->iommu_bit)
 		return;
 

drivers/gpu/drm/nouveau/nvkm/engine/disp/changf119.c

@@ -52,7 +52,7 @@ void
 gf119_disp_chan_intr(struct nv50_disp_chan *chan, bool en)
 {
 	struct nvkm_device *device = chan->disp->base.engine.subdev.device;
-	const u64 mask = 0x00000001 << chan->chid.user;
+	const u32 mask = 0x00000001 << chan->chid.user;
 	if (!en) {
 		nvkm_mask(device, 0x610090, mask, 0x00000000);
 		nvkm_mask(device, 0x6100a0, mask, 0x00000000);

drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c

@@ -166,8 +166,8 @@ void
 nv50_disp_chan_intr(struct nv50_disp_chan *chan, bool en)
 {
 	struct nvkm_device *device = chan->disp->base.engine.subdev.device;
-	const u64 mask = 0x00010001 << chan->chid.user;
-	const u64 data = en ? 0x00010000 : 0x00000000;
+	const u32 mask = 0x00010001 << chan->chid.user;
+	const u32 data = en ? 0x00010000 << chan->chid.user : 0x00000000;
 	nvkm_mask(device, 0x610028, mask, data);
 }
 

drivers/gpu/drm/nouveau/nvkm/engine/gr/gv100.c

@@ -25,24 +25,31 @@
 #include <nvif/class.h>
 
 static void
-gv100_gr_trap_mp(struct gf100_gr *gr, int gpc, int tpc)
+gv100_gr_trap_sm(struct gf100_gr *gr, int gpc, int tpc, int sm)
 {
 	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
 	struct nvkm_device *device = subdev->device;
-	u32 werr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x730));
-	u32 gerr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x734));
+	u32 werr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x730 + (sm * 0x80)));
+	u32 gerr = nvkm_rd32(device, TPC_UNIT(gpc, tpc, 0x734 + (sm * 0x80)));
 	const struct nvkm_enum *warp;
 	char glob[128];
 
 	nvkm_snprintbf(glob, sizeof(glob), gf100_mp_global_error, gerr);
 	warp = nvkm_enum_find(gf100_mp_warp_error, werr & 0xffff);
 
-	nvkm_error(subdev, "GPC%i/TPC%i/MP trap: "
+	nvkm_error(subdev, "GPC%i/TPC%i/SM%d trap: "
 			   "global %08x [%s] warp %04x [%s]\n",
-		   gpc, tpc, gerr, glob, werr, warp ? warp->name : "");
+		   gpc, tpc, sm, gerr, glob, werr, warp ? warp->name : "");
+
+	nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x730 + sm * 0x80), 0x00000000);
+	nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x734 + sm * 0x80), gerr);
+}
 
-	nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x730), 0x00000000);
-	nvkm_wr32(device, TPC_UNIT(gpc, tpc, 0x734), gerr);
+static void
+gv100_gr_trap_mp(struct gf100_gr *gr, int gpc, int tpc)
+{
+	gv100_gr_trap_sm(gr, gpc, tpc, 0);
+	gv100_gr_trap_sm(gr, gpc, tpc, 1);
 }
 
 static void

drivers/gpu/drm/nouveau/nvkm/subdev/bios/vpstate.c

@@ -58,8 +58,14 @@ nvbios_vpstate_parse(struct nvkm_bios *b, struct nvbios_vpstate_header *h)
 		h->ecount   = nvbios_rd08(b, h->offset + 0x5);
 
 		h->base_id  = nvbios_rd08(b, h->offset + 0x0f);
-		h->boost_id = nvbios_rd08(b, h->offset + 0x10);
-		h->tdp_id   = nvbios_rd08(b, h->offset + 0x11);
+		if (h->hlen > 0x10)
+			h->boost_id = nvbios_rd08(b, h->offset + 0x10);
+		else
+			h->boost_id = 0xff;
+		if (h->hlen > 0x11)
+			h->tdp_id = nvbios_rd08(b, h->offset + 0x11);
+		else
+			h->tdp_id = 0xff;
 		return 0;
 	default:
 		return -EINVAL;

drivers/gpu/drm/nouveau/nvkm/subdev/fault/base.c

@@ -133,8 +133,14 @@ nvkm_fault_oneinit(struct nvkm_subdev *subdev)
 		}
 	}
 
-	return nvkm_event_init(&nvkm_fault_ntfy, 1, fault->buffer_nr,
-			       &fault->event);
+	ret = nvkm_event_init(&nvkm_fault_ntfy, 1, fault->buffer_nr,
+			      &fault->event);
+	if (ret)
+		return ret;
+
+	if (fault->func->oneinit)
+		ret = fault->func->oneinit(fault);
+	return ret;
 }
 
 static void *

drivers/gpu/drm/nouveau/nvkm/subdev/fault/gv100.c

@@ -176,8 +176,17 @@ gv100_fault_init(struct nvkm_fault *fault)
 	nvkm_notify_get(&fault->nrpfb);
 }
 
+static int
+gv100_fault_oneinit(struct nvkm_fault *fault)
+{
+	return nvkm_notify_init(&fault->buffer[0]->object, &fault->event,
+				gv100_fault_ntfy_nrpfb, false, NULL, 0, 0,
+				&fault->nrpfb);
+}
+
 static const struct nvkm_fault_func
 gv100_fault = {
+	.oneinit = gv100_fault_oneinit,
 	.init = gv100_fault_init,
 	.fini = gv100_fault_fini,
 	.intr = gv100_fault_intr,
@@ -192,15 +201,5 @@ int
 gv100_fault_new(struct nvkm_device *device, int index,
 		struct nvkm_fault **pfault)
 {
-	struct nvkm_fault *fault;
-	int ret;
-
-	ret = nvkm_fault_new_(&gv100_fault, device, index, &fault);
-	*pfault = fault;
-	if (ret)
-		return ret;
-
-	return nvkm_notify_init(&fault->buffer[0]->object, &fault->event,
-				gv100_fault_ntfy_nrpfb, false, NULL, 0, 0,
-				&fault->nrpfb);
+	return nvkm_fault_new_(&gv100_fault, device, index, pfault);
 }

drivers/gpu/drm/nouveau/nvkm/subdev/fault/priv.h

@@ -20,6 +20,7 @@ int nvkm_fault_new_(const struct nvkm_fault_func *, struct nvkm_device *,
 		    int index, struct nvkm_fault **);
 
 struct nvkm_fault_func {
+	int (*oneinit)(struct nvkm_fault *);
 	void (*init)(struct nvkm_fault *);
 	void (*fini)(struct nvkm_fault *);
 	void (*intr)(struct nvkm_fault *);

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c

@@ -414,6 +414,20 @@ acr_r352_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 {
 	struct ls_ucode_img *_img;
 	u32 pos = 0;
+	u32 max_desc_size = 0;
+	u8 *gdesc;
+
+	/* Figure out how large we need gdesc to be. */
+	list_for_each_entry(_img, imgs, node) {
+		const struct acr_r352_ls_func *ls_func =
+					    acr->func->ls_func[_img->falcon_id];
+
+		max_desc_size = max(max_desc_size, ls_func->bl_desc_size);
+	}
+
+	gdesc = kmalloc(max_desc_size, GFP_KERNEL);
+	if (!gdesc)
+		return -ENOMEM;
 
 	nvkm_kmap(wpr_blob);
 
@@ -421,7 +435,6 @@ acr_r352_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 		struct ls_ucode_img_r352 *img = ls_ucode_img_r352(_img);
 		const struct acr_r352_ls_func *ls_func =
 					    acr->func->ls_func[_img->falcon_id];
-		u8 gdesc[ls_func->bl_desc_size];
 
 		nvkm_gpuobj_memcpy_to(wpr_blob, pos, &img->wpr_header,
 				      sizeof(img->wpr_header));
@@ -447,6 +460,8 @@ acr_r352_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 
 	nvkm_done(wpr_blob);
 
+	kfree(gdesc);
+
 	return 0;
 }
 
@@ -771,7 +786,11 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon,
 	struct fw_bl_desc *hsbl_desc;
 	void *bl, *blob_data, *hsbl_code, *hsbl_data;
 	u32 code_size;
-	u8 bl_desc[bl_desc_size];
+	u8 *bl_desc;
+
+	bl_desc = kzalloc(bl_desc_size, GFP_KERNEL);
+	if (!bl_desc)
+		return -ENOMEM;
 
 	/* Find the bootloader descriptor for our blob and copy it */
 	if (blob == acr->load_blob) {
@@ -802,7 +821,6 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon,
 			      code_size, hsbl_desc->start_tag, 0, false);
 
 	/* Generate the BL header */
-	memset(bl_desc, 0, bl_desc_size);
 	acr->func->generate_hs_bl_desc(load_hdr, bl_desc, offset);
 
 	/*
@@ -811,6 +829,7 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon,
 	nvkm_falcon_load_dmem(falcon, bl_desc, hsbl_desc->dmem_load_off,
 			      bl_desc_size, 0);
 
+	kfree(bl_desc);
 	return hsbl_desc->start_tag << 8;
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r367.c

@@ -265,6 +265,19 @@ acr_r367_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 {
 	struct ls_ucode_img *_img;
 	u32 pos = 0;
+	u32 max_desc_size = 0;
+	u8 *gdesc;
+
+	list_for_each_entry(_img, imgs, node) {
+		const struct acr_r352_ls_func *ls_func =
+					    acr->func->ls_func[_img->falcon_id];
+
+		max_desc_size = max(max_desc_size, ls_func->bl_desc_size);
+	}
+
+	gdesc = kmalloc(max_desc_size, GFP_KERNEL);
+	if (!gdesc)
+		return -ENOMEM;
 
 	nvkm_kmap(wpr_blob);
 
@@ -272,7 +285,6 @@ acr_r367_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 		struct ls_ucode_img_r367 *img = ls_ucode_img_r367(_img);
 		const struct acr_r352_ls_func *ls_func =
 					    acr->func->ls_func[_img->falcon_id];
-		u8 gdesc[ls_func->bl_desc_size];
 
 		nvkm_gpuobj_memcpy_to(wpr_blob, pos, &img->wpr_header,
 				      sizeof(img->wpr_header));
@@ -298,6 +310,8 @@ acr_r367_ls_write_wpr(struct acr_r352 *acr, struct list_head *imgs,
 
 	nvkm_done(wpr_blob);
 
+	kfree(gdesc);
+
 	return 0;
 }
 

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gm20b.c

@@ -129,6 +129,7 @@ gm20b_secboot_new(struct nvkm_device *device, int index,
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)
 MODULE_FIRMWARE("nvidia/gm20b/acr/bl.bin");
 MODULE_FIRMWARE("nvidia/gm20b/acr/ucode_load.bin");
 MODULE_FIRMWARE("nvidia/gm20b/gr/fecs_bl.bin");
@@ -144,3 +145,4 @@ MODULE_FIRMWARE("nvidia/gm20b/gr/sw_method_init.bin");
 MODULE_FIRMWARE("nvidia/gm20b/pmu/desc.bin");
 MODULE_FIRMWARE("nvidia/gm20b/pmu/image.bin");
 MODULE_FIRMWARE("nvidia/gm20b/pmu/sig.bin");
+#endif

drivers/gpu/drm/nouveau/nvkm/subdev/secboot/gp10b.c

@@ -74,6 +74,7 @@ gp10b_secboot_new(struct nvkm_device *device, int index,
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_ARCH_TEGRA_186_SOC)
 MODULE_FIRMWARE("nvidia/gp10b/acr/bl.bin");
 MODULE_FIRMWARE("nvidia/gp10b/acr/ucode_load.bin");
 MODULE_FIRMWARE("nvidia/gp10b/gr/fecs_bl.bin");
@@ -91,3 +92,4 @@ MODULE_FIRMWARE("nvidia/gp10b/gr/sw_method_init.bin");
 MODULE_FIRMWARE("nvidia/gp10b/pmu/desc.bin");
 MODULE_FIRMWARE("nvidia/gp10b/pmu/image.bin");
 MODULE_FIRMWARE("nvidia/gp10b/pmu/sig.bin");
+#endif