Merge branch 'linux-4.10' of git://github.com/skeggsb/linux into drm-next

- Regression fix from atomic conversion (rotation on the original G80).
- Concurrency fix when clearing compression tags.
- Fixes DP link training issues on GP102/4/6.
- Fixes backlight handling in the presence of Apple GMUX.
- Improvements to GPU error recovery in a number of scenarios.
- GP106 support.

* 'linux-4.10' of git://github.com/skeggsb/linux:
  drm/nouveau/kms/nv50: fix atomic regression on original G80
  drm/nouveau/bl: Do not register interface if Apple GMUX detected
  drm/nouveau/bl: Assign different names to interfaces
  drm/nouveau/bios/dp: fix handling of LevelEntryTableIndex on DP table 4.2
  drm/nouveau/ltc: protect clearing of comptags with mutex
  drm/nouveau/gr/gf100-: handle GPC/TPC/MPC trap
  drm/nouveau/core: recognise GP106 chipset
  drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
  drm/nouveau/gr/gf100-: FECS intr handling is not relevant on proprietary ucode
  drm/nouveau/gr/gf100-: properly ack all FECS error interrupts
  drm/nouveau/fifo/gf100-: recover from host mmu faults

Author: airlied

drivers/gpu/drm/nouveau/nouveau_backlight.c

@@ -30,12 +30,37 @@
  * Register locations derived from NVClock by Roderick Colenbrander
  */
 
+#include <linux/apple-gmux.h>
 #include <linux/backlight.h>
+#include <linux/idr.h>
 
 #include "nouveau_drv.h"
 #include "nouveau_reg.h"
 #include "nouveau_encoder.h"
 
+static struct ida bl_ida;
+#define BL_NAME_SIZE 15 // 12 for name + 2 for digits + 1 for '\0'
+
+struct backlight_connector {
+	struct list_head head;
+	int id;
+};
+
+static bool
+nouveau_get_backlight_name(char backlight_name[BL_NAME_SIZE], struct backlight_connector
+		*connector)
+{
+	const int nb = ida_simple_get(&bl_ida, 0, 0, GFP_KERNEL);
+	if (nb < 0 || nb >= 100)
+		return false;
+	if (nb > 0)
+		snprintf(backlight_name, BL_NAME_SIZE, "nv_backlight%d", nb);
+	else
+		snprintf(backlight_name, BL_NAME_SIZE, "nv_backlight");
+	connector->id = nb;
+	return true;
+}
+
 static int
 nv40_get_intensity(struct backlight_device *bd)
 {
@@ -74,17 +99,28 @@ nv40_backlight_init(struct drm_connector *connector)
 	struct nvif_object *device = &drm->device.object;
 	struct backlight_properties props;
 	struct backlight_device *bd;
+	struct backlight_connector bl_connector;
+	char backlight_name[BL_NAME_SIZE];
 
 	if (!(nvif_rd32(device, NV40_PMC_BACKLIGHT) & NV40_PMC_BACKLIGHT_MASK))
 		return 0;
 
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = 31;
-	bd = backlight_device_register("nv_backlight", connector->kdev, drm,
+	if (!nouveau_get_backlight_name(backlight_name, &bl_connector)) {
+		NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
+		return 0;
+	}
+	bd = backlight_device_register(backlight_name , connector->kdev, drm,
 				       &nv40_bl_ops, &props);
-	if (IS_ERR(bd))
+
+	if (IS_ERR(bd)) {
+		if (bl_connector.id > 0)
+			ida_simple_remove(&bl_ida, bl_connector.id);
 		return PTR_ERR(bd);
+	}
+	list_add(&bl_connector.head, &drm->bl_connectors);
 	drm->backlight = bd;
 	bd->props.brightness = nv40_get_intensity(bd);
 	backlight_update_status(bd);
@@ -182,6 +218,8 @@ nv50_backlight_init(struct drm_connector *connector)
 	struct backlight_properties props;
 	struct backlight_device *bd;
 	const struct backlight_ops *ops;
+	struct backlight_connector bl_connector;
+	char backlight_name[BL_NAME_SIZE];
 
 	nv_encoder = find_encoder(connector, DCB_OUTPUT_LVDS);
 	if (!nv_encoder) {
@@ -203,11 +241,20 @@ nv50_backlight_init(struct drm_connector *connector)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = 100;
-	bd = backlight_device_register("nv_backlight", connector->kdev,
+	if (!nouveau_get_backlight_name(backlight_name, &bl_connector)) {
+		NV_ERROR(drm, "Failed to retrieve a unique name for the backlight interface\n");
+		return 0;
+	}
+	bd = backlight_device_register(backlight_name , connector->kdev,
 				       nv_encoder, ops, &props);
-	if (IS_ERR(bd))
+
+	if (IS_ERR(bd)) {
+		if (bl_connector.id > 0)
+			ida_simple_remove(&bl_ida, bl_connector.id);
 		return PTR_ERR(bd);
+	}
 
+	list_add(&bl_connector.head, &drm->bl_connectors);
 	drm->backlight = bd;
 	bd->props.brightness = bd->ops->get_brightness(bd);
 	backlight_update_status(bd);
@@ -221,6 +268,13 @@ nouveau_backlight_init(struct drm_device *dev)
 	struct nvif_device *device = &drm->device;
 	struct drm_connector *connector;
 
+	if (apple_gmux_present()) {
+		NV_INFO(drm, "Apple GMUX detected: not registering Nouveau backlight interface\n");
+		return 0;
+	}
+
+	INIT_LIST_HEAD(&drm->bl_connectors);
+
 	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 		if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS &&
 		    connector->connector_type != DRM_MODE_CONNECTOR_eDP)
@@ -247,9 +301,27 @@ void
 nouveau_backlight_exit(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct backlight_connector *connector;
+
+	list_for_each_entry(connector, &drm->bl_connectors, head) {
+		if (connector->id >= 0)
+			ida_simple_remove(&bl_ida, connector->id);
+	}
 
 	if (drm->backlight) {
 		backlight_device_unregister(drm->backlight);
 		drm->backlight = NULL;
 	}
 }
+
+void
+nouveau_backlight_ctor(void)
+{
+	ida_init(&bl_ida);
+}
+
+void
+nouveau_backlight_dtor(void)
+{
+	ida_destroy(&bl_ida);
+}

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -1209,6 +1209,7 @@ nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem)
 			       nvbo->page_shift != vma->vm->mmu->lpg_shift)) {
 			nvkm_vm_map(vma, new_mem->mm_node);
 		} else {
+			WARN_ON(ttm_bo_wait(bo, false, false));
 			nvkm_vm_unmap(vma);
 		}
 	}

drivers/gpu/drm/nouveau/nouveau_display.h

@@ -91,6 +91,8 @@ int nouveau_crtc_set_config(struct drm_mode_set *set);
 #ifdef CONFIG_DRM_NOUVEAU_BACKLIGHT
 extern int nouveau_backlight_init(struct drm_device *);
 extern void nouveau_backlight_exit(struct drm_device *);
+extern void nouveau_backlight_ctor(void);
+extern void nouveau_backlight_dtor(void);
 #else
 static inline int
 nouveau_backlight_init(struct drm_device *dev)
@@ -101,6 +103,14 @@ nouveau_backlight_init(struct drm_device *dev)
 static inline void
 nouveau_backlight_exit(struct drm_device *dev) {
 }
+
+static inline void
+nouveau_backlight_ctor(void) {
+}
+
+static inline void
+nouveau_backlight_dtor(void) {
+}
 #endif
 
 struct drm_framebuffer *

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -1122,6 +1122,7 @@ nouveau_drm_init(void)
 #endif
 
 	nouveau_register_dsm_handler();
+	nouveau_backlight_ctor();
 	return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
 }
 
@@ -1132,6 +1133,7 @@ nouveau_drm_exit(void)
 		return;
 
 	drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
+	nouveau_backlight_dtor();
 	nouveau_unregister_dsm_handler();
 
 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -163,6 +163,7 @@ struct nouveau_drm {
 	struct nvbios vbios;
 	struct nouveau_display *display;
 	struct backlight_device *backlight;
+	struct list_head bl_connectors;
 	struct work_struct hpd_work;
 #ifdef CONFIG_ACPI
 	struct notifier_block acpi_nb;

drivers/gpu/drm/nouveau/nv50_display.c

@@ -1726,6 +1726,11 @@ nv50_head_core_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 			evo_data(push, asyh->core.handle);
 			evo_mthd(push, 0x08c0 + head->base.index * 0x400, 1);
 			evo_data(push, (asyh->core.y << 16) | asyh->core.x);
+			/* EVO will complain with INVALID_STATE if we have an
+			 * active cursor and (re)specify HeadSetContextDmaIso
+			 * without also updating HeadSetOffsetCursor.
+			 */
+			asyh->set.curs = asyh->curs.visible;
 		} else
 		if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
 			evo_mthd(push, 0x0860 + head->base.index * 0x400, 1);

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

@@ -2241,6 +2241,35 @@ nv134_chipset = {
 	.fifo = gp100_fifo_new,
 };
 
+static const struct nvkm_device_chip
+nv136_chipset = {
+	.name = "GP106",
+	.bar = gf100_bar_new,
+	.bios = nvkm_bios_new,
+	.bus = gf100_bus_new,
+	.devinit = gm200_devinit_new,
+	.fb = gp102_fb_new,
+	.fuse = gm107_fuse_new,
+	.gpio = gk104_gpio_new,
+	.i2c = gm200_i2c_new,
+	.ibus = gm200_ibus_new,
+	.imem = nv50_instmem_new,
+	.ltc = gp100_ltc_new,
+	.mc = gp100_mc_new,
+	.mmu = gf100_mmu_new,
+	.pci = gp100_pci_new,
+	.pmu = gp102_pmu_new,
+	.timer = gk20a_timer_new,
+	.top = gk104_top_new,
+	.ce[0] = gp102_ce_new,
+	.ce[1] = gp102_ce_new,
+	.ce[2] = gp102_ce_new,
+	.ce[3] = gp102_ce_new,
+	.disp = gp102_disp_new,
+	.dma = gf119_dma_new,
+	.fifo = gp100_fifo_new,
+};
+
 static int
 nvkm_device_event_ctor(struct nvkm_object *object, void *data, u32 size,
 		       struct nvkm_notify *notify)
@@ -2677,6 +2706,7 @@ nvkm_device_ctor(const struct nvkm_device_func *func,
 		case 0x130: device->chip = &nv130_chipset; break;
 		case 0x132: device->chip = &nv132_chipset; break;
 		case 0x134: device->chip = &nv134_chipset; break;
+		case 0x136: device->chip = &nv136_chipset; break;
 		default:
 			nvdev_error(device, "unknown chipset (%08x)\n", boot0);
 			goto done;

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c

@@ -180,7 +180,8 @@ gf100_fifo_recover(struct gf100_fifo *fifo, struct nvkm_engine *engine,
 	list_del_init(&chan->head);
 	chan->killed = true;
 
-	fifo->recover.mask |= 1ULL << engine->subdev.index;
+	if (engine != &fifo->base.engine)
+		fifo->recover.mask |= 1ULL << engine->subdev.index;
 	schedule_work(&fifo->recover.work);
 }
 

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c

@@ -743,14 +743,14 @@ gk104_fifo_fault_engine[] = {
 	{ 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
 	{ 0x05, "BAR2", NULL, NVKM_SUBDEV_INSTMEM },
 	{ 0x06, "SCHED" },
-	{ 0x07, "HOST0" },
-	{ 0x08, "HOST1" },
-	{ 0x09, "HOST2" },
-	{ 0x0a, "HOST3" },
-	{ 0x0b, "HOST4" },
-	{ 0x0c, "HOST5" },
-	{ 0x0d, "HOST6" },
-	{ 0x0e, "HOST7" },
+	{ 0x07, "HOST0", NULL, NVKM_ENGINE_FIFO },
+	{ 0x08, "HOST1", NULL, NVKM_ENGINE_FIFO },
+	{ 0x09, "HOST2", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0a, "HOST3", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0b, "HOST4", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0c, "HOST5", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0d, "HOST6", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0e, "HOST7", NULL, NVKM_ENGINE_FIFO },
 	{ 0x0f, "HOSTSR" },
 	{ 0x10, "MSVLD", NULL, NVKM_ENGINE_MSVLD },
 	{ 0x11, "MSPPP", NULL, NVKM_ENGINE_MSPPP },

drivers/gpu/drm/nouveau/nvkm/engine/fifo/gm107.c

@@ -32,14 +32,14 @@ gm107_fifo_fault_engine[] = {
 	{ 0x04, "BAR1", NULL, NVKM_SUBDEV_BAR },
 	{ 0x05, "BAR2", NULL, NVKM_SUBDEV_INSTMEM },
 	{ 0x06, "SCHED" },
-	{ 0x07, "HOST0" },
-	{ 0x08, "HOST1" },
-	{ 0x09, "HOST2" },
-	{ 0x0a, "HOST3" },
-	{ 0x0b, "HOST4" },
-	{ 0x0c, "HOST5" },
-	{ 0x0d, "HOST6" },
-	{ 0x0e, "HOST7" },
+	{ 0x07, "HOST0", NULL, NVKM_ENGINE_FIFO },
+	{ 0x08, "HOST1", NULL, NVKM_ENGINE_FIFO },
+	{ 0x09, "HOST2", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0a, "HOST3", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0b, "HOST4", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0c, "HOST5", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0d, "HOST6", NULL, NVKM_ENGINE_FIFO },
+	{ 0x0e, "HOST7", NULL, NVKM_ENGINE_FIFO },
 	{ 0x0f, "HOSTSR" },
 	{ 0x13, "PERF" },
 	{ 0x17, "PMU" },