Merge branch 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau…

…/linux-2.6 into drm-next

- Vast improvements to gk20a instmem handling.
- Improved PGOB detection + GK107 support.
- Compatibility between old/new interfaces added, final missing piece to
finally enabling userspace to start using them.
- Kepler GDDR5 PLL stability improvements
- Support for non-GPIO (PWM) voltage controllers
- G8x/GT2xx memory clock improvements
- Misc other fixes

* 'linux-4.4' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (45 commits)
  drm/nouveau: bump patchlevel to indicate availability of abi16/nvif interop
  drm/nouveau/abi16: implement limited interoperability with usif/nvif
  drm/nouveau/abi16: introduce locked variant of nouveau_abi16_get()
  drm/nouveau/abi16: remove unused argument from nouveau_abi16_get()
  drm/nouveau/pci: enable c800 magic for Medion Erazer X7827
  drm/nouveau/pci: enable c800 magic for Lenovo Y510P
  drm/nouveau/pll/gk104: fix PLL instability due to bad configuration with gddr5
  drm/nouveau/clk/g84: Enable reclocking for GDDR3 G94-G200
  drm/nouveau/bus/hwsq: Implement VBLANK waiting heuristic
  drm/nouveau/fb/ramnv50: Script changes for G94 and up
  drm/nouveau/fb/ramnv50: Deal with cards without timing entries
  drm/nouveau/fb/ramnv50: Voltage GPIOs
  drm/nouveau/fb/ramgt215: Restructure r111100 calculation for DDR2
  drm/nouveau/fb/ramgt215: Change FBVDD/Q when BIOS asks for it
  drm/nouveau/fb/ramgt215: Transform GPIO ramfuc method from FBVREF-specific to generic
  drm/nouveau/bios/rammap: Identify DLLoff for >= GF100
  drm/nouveau/pci: Handle 5-bit and 8-bit tag field
  drm/nouveau/disp,pm: constify nvkm_object_func structures
  drm/nouveau/gr: add FERMI_COMPUTE_B class to GF110+
  drm/nouveau/gr: document mp error 0x10
  ...

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

@@ -27,6 +27,7 @@
 #include <linux/agp_backend.h>
 #include <linux/reset.h>
 #include <linux/iommu.h>
+#include <linux/of_device.h>
 
 #include <asm/unaligned.h>
 

drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h

@@ -4,6 +4,7 @@
 #include <core/mm.h>
 
 struct nvkm_device_tegra {
+	const struct nvkm_device_tegra_func *func;
 	struct nvkm_device device;
 	struct platform_device *pdev;
 	int irq;
@@ -28,7 +29,17 @@ struct nvkm_device_tegra {
 	int gpu_speedo;
 };
 
-int nvkm_device_tegra_new(struct platform_device *,
+struct nvkm_device_tegra_func {
+	/*
+	 * If an IOMMU is used, indicates which address bit will trigger a
+	 * IOMMU translation when set (when this bit is not set, IOMMU is
+	 * bypassed). A value of 0 means an IOMMU is never used.
+	 */
+	u8 iommu_bit;
+};
+
+int nvkm_device_tegra_new(const struct nvkm_device_tegra_func *,
+			  struct platform_device *,
 			  const char *cfg, const char *dbg,
 			  bool detect, bool mmio, u64 subdev_mask,
 			  struct nvkm_device **);

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h

@@ -15,6 +15,7 @@ enum dcb_gpio_func_name {
 	DCB_GPIO_VID5 = 0x74,
 	DCB_GPIO_VID6 = 0x75,
 	DCB_GPIO_VID7 = 0x76,
+	DCB_GPIO_VID_PWM = 0x81,
 };
 
 #define DCB_GPIO_LOG_DIR     0x02

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pmu.h

@@ -4,8 +4,6 @@ struct nvbios_pmuT {
 };
 
 u32 nvbios_pmuTe(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
-u32 nvbios_pmuTp(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
-		 struct nvbios_pmuT *);
 
 struct nvbios_pmuE {
 	u8  type;

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/ramcfg.h

@@ -39,6 +39,7 @@ struct nvbios_ramcfg {
 	unsigned ramcfg_timing;
 	unsigned ramcfg_DLLoff;
 	unsigned ramcfg_RON;
+	unsigned ramcfg_FBVDDQ;
 	union {
 		struct {
 			unsigned ramcfg_00_03_01:1;
@@ -78,7 +79,6 @@ struct nvbios_ramcfg {
 			unsigned ramcfg_11_01_04:1;
 			unsigned ramcfg_11_01_08:1;
 			unsigned ramcfg_11_01_10:1;
-			unsigned ramcfg_11_01_20:1;
 			unsigned ramcfg_11_01_40:1;
 			unsigned ramcfg_11_01_80:1;
 			unsigned ramcfg_11_02_03:2;

drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h

@@ -1,11 +1,24 @@
 #ifndef __NVBIOS_VOLT_H__
 #define __NVBIOS_VOLT_H__
+
+enum nvbios_volt_type {
+	NVBIOS_VOLT_GPIO = 0,
+	NVBIOS_VOLT_PWM,
+};
+
 struct nvbios_volt {
-	u8  vidmask;
+	enum nvbios_volt_type type;
 	u32 min;
 	u32 max;
 	u32 base;
+
+	/* GPIO mode */
+	u8  vidmask;
 	s16 step;
+
+	/* PWM mode */
+	u32 pwm_freq;
+	u32 pwm_range;
 };
 
 u16 nvbios_volt_table(struct nvkm_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);

drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h

@@ -14,6 +14,7 @@ int  nvkm_hwsq_fini(struct nvkm_hwsq **, bool exec);
 void nvkm_hwsq_wr32(struct nvkm_hwsq *, u32 addr, u32 data);
 void nvkm_hwsq_setf(struct nvkm_hwsq *, u8 flag, int data);
 void nvkm_hwsq_wait(struct nvkm_hwsq *, u8 flag, u8 data);
+void nvkm_hwsq_wait_vblank(struct nvkm_hwsq *);
 void nvkm_hwsq_nsec(struct nvkm_hwsq *, u32 nsec);
 
 int nv04_bus_new(struct nvkm_device *, int, struct nvkm_bus **);

drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h

@@ -3,6 +3,7 @@
 #include <core/subdev.h>
 
 int gf100_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
+int gf117_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 int gk104_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 int gk20a_ibus_new(struct nvkm_device *, int, struct nvkm_subdev **);
 #endif

drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h

@@ -30,7 +30,11 @@ void nvkm_ltc_tags_clear(struct nvkm_ltc *, u32 first, u32 count);
 int nvkm_ltc_zbc_color_get(struct nvkm_ltc *, int index, const u32[4]);
 int nvkm_ltc_zbc_depth_get(struct nvkm_ltc *, int index, const u32);
 
+void nvkm_ltc_invalidate(struct nvkm_ltc *);
+void nvkm_ltc_flush(struct nvkm_ltc *);
+
 int gf100_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);
 int gk104_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);
+int gk20a_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);
 int gm107_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);
 #endif

drivers/gpu/drm/nouveau/include/nvkm/subdev/pci.h

@@ -24,11 +24,14 @@ struct nvkm_pci {
 u32 nvkm_pci_rd32(struct nvkm_pci *, u16 addr);
 void nvkm_pci_wr08(struct nvkm_pci *, u16 addr, u8 data);
 void nvkm_pci_wr32(struct nvkm_pci *, u16 addr, u32 data);
+u32 nvkm_pci_mask(struct nvkm_pci *, u16 addr, u32 mask, u32 value);
 void nvkm_pci_rom_shadow(struct nvkm_pci *, bool shadow);
 
 int nv04_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
 int nv40_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
+int nv46_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
 int nv4c_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
-int nv50_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
+int g84_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
+int g94_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
 int gf100_pci_new(struct nvkm_device *, int, struct nvkm_pci **);
 #endif

drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h

@@ -59,6 +59,16 @@ void nvkm_timer_alarm_cancel(struct nvkm_timer *, struct nvkm_alarm *);
 #define nvkm_usec(d,u,cond...) nvkm_nsec((d), (u) * 1000, ##cond)
 #define nvkm_msec(d,m,cond...) nvkm_usec((d), (m) * 1000, ##cond)
 
+#define nvkm_wait_nsec(d,n,addr,mask,data)                                     \
+	nvkm_nsec(d, n,                                                        \
+		if ((nvkm_rd32(d, (addr)) & (mask)) == (data))                 \
+			break;                                                 \
+		)
+#define nvkm_wait_usec(d,u,addr,mask,data)                                     \
+	nvkm_wait_nsec((d), (u) * 1000, (addr), (mask), (data))
+#define nvkm_wait_msec(d,m,addr,mask,data)                                     \
+	nvkm_wait_usec((d), (m) * 1000, (addr), (mask), (data))
+
 int nv04_timer_new(struct nvkm_device *, int, struct nvkm_timer **);
 int nv40_timer_new(struct nvkm_device *, int, struct nvkm_timer **);
 int nv41_timer_new(struct nvkm_device *, int, struct nvkm_timer **);

drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h

@@ -18,5 +18,6 @@ int nvkm_volt_get(struct nvkm_volt *);
 int nvkm_volt_set_id(struct nvkm_volt *, u8 id, int condition);
 
 int nv40_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
+int gk104_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
 int gk20a_volt_new(struct nvkm_device *, int, struct nvkm_volt **);
 #endif

drivers/gpu/drm/nouveau/nouveau_abi16.c

@@ -25,18 +25,18 @@
 #include <nvif/driver.h>
 #include <nvif/ioctl.h>
 #include <nvif/class.h>
+#include <nvif/unpack.h>
 
 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
 #include "nouveau_gem.h"
 #include "nouveau_chan.h"
 #include "nouveau_abi16.h"
 
-struct nouveau_abi16 *
-nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
+static struct nouveau_abi16 *
+nouveau_abi16(struct drm_file *file_priv)
 {
 	struct nouveau_cli *cli = nouveau_cli(file_priv);
-	mutex_lock(&cli->mutex);
 	if (!cli->abi16) {
 		struct nouveau_abi16 *abi16;
 		cli->abi16 = abi16 = kzalloc(sizeof(*abi16), GFP_KERNEL);
@@ -51,21 +51,29 @@ nouveau_abi16_get(struct drm_file *file_priv, struct drm_device *dev)
 			 * device (ie. the one that belongs to the fd it
 			 * opened)
 			 */
-			if (nvif_device_init(&cli->base.object,
-					     NOUVEAU_ABI16_DEVICE, NV_DEVICE,
+			if (nvif_device_init(&cli->base.object, 0, NV_DEVICE,
 					     &args, sizeof(args),
 					     &abi16->device) == 0)
 				return cli->abi16;
 
 			kfree(cli->abi16);
 			cli->abi16 = NULL;
 		}
-
-		mutex_unlock(&cli->mutex);
 	}
 	return cli->abi16;
 }
 
+struct nouveau_abi16 *
+nouveau_abi16_get(struct drm_file *file_priv)
+{
+	struct nouveau_cli *cli = nouveau_cli(file_priv);
+	mutex_lock(&cli->mutex);
+	if (nouveau_abi16(file_priv))
+		return cli->abi16;
+	mutex_unlock(&cli->mutex);
+	return NULL;
+}
+
 int
 nouveau_abi16_put(struct nouveau_abi16 *abi16, int ret)
 {
@@ -133,7 +141,6 @@ nouveau_abi16_chan_fini(struct nouveau_abi16 *abi16,
 
 	/* destroy channel object, all children will be killed too */
 	if (chan->chan) {
-		abi16->handles &= ~(1ULL << (chan->chan->user.handle & 0xffff));
 		nouveau_channel_idle(chan->chan);
 		nouveau_channel_del(&chan->chan);
 	}
@@ -238,7 +245,7 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 	struct drm_nouveau_channel_alloc *init = data;
 	struct nouveau_cli *cli = nouveau_cli(file_priv);
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nvif_device *device;
 	int ret;
@@ -268,26 +275,21 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 		return nouveau_abi16_put(abi16, -EINVAL);
 
 	/* allocate "abi16 channel" data and make up a handle for it */
-	init->channel = __ffs64(~abi16->handles);
-	if (~abi16->handles == 0)
-		return nouveau_abi16_put(abi16, -ENOSPC);
-
 	chan = kzalloc(sizeof(*chan), GFP_KERNEL);
 	if (!chan)
 		return nouveau_abi16_put(abi16, -ENOMEM);
 
 	INIT_LIST_HEAD(&chan->notifiers);
 	list_add(&chan->head, &abi16->channels);
-	abi16->handles |= (1ULL << init->channel);
 
 	/* create channel object and initialise dma and fence management */
-	ret = nouveau_channel_new(drm, device,
-				  NOUVEAU_ABI16_CHAN(init->channel),
-				  init->fb_ctxdma_handle,
+	ret = nouveau_channel_new(drm, device, init->fb_ctxdma_handle,
 				  init->tt_ctxdma_handle, &chan->chan);
 	if (ret)
 		goto done;
 
+	init->channel = chan->chan->chid;
+
 	if (device->info.family >= NV_DEVICE_INFO_V0_TESLA)
 		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_VRAM |
 					NOUVEAU_GEM_DOMAIN_GART;
@@ -338,18 +340,56 @@ nouveau_abi16_chan(struct nouveau_abi16 *abi16, int channel)
 	struct nouveau_abi16_chan *chan;
 
 	list_for_each_entry(chan, &abi16->channels, head) {
-		if (chan->chan->user.handle == NOUVEAU_ABI16_CHAN(channel))
+		if (chan->chan->chid == channel)
 			return chan;
 	}
 
 	return NULL;
 }
 
+int
+nouveau_abi16_usif(struct drm_file *file_priv, void *data, u32 size)
+{
+	union {
+		struct nvif_ioctl_v0 v0;
+	} *args = data;
+	struct nouveau_abi16_chan *chan;
+	struct nouveau_abi16 *abi16;
+	int ret;
+
+	if (nvif_unpack(args->v0, 0, 0, true)) {
+		switch (args->v0.type) {
+		case NVIF_IOCTL_V0_NEW:
+		case NVIF_IOCTL_V0_MTHD:
+		case NVIF_IOCTL_V0_SCLASS:
+			break;
+		default:
+			return -EACCES;
+		}
+	} else
+		return ret;
+
+	if (!(abi16 = nouveau_abi16(file_priv)))
+		return -ENOMEM;
+
+	if (args->v0.token != ~0ULL) {
+		if (!(chan = nouveau_abi16_chan(abi16, args->v0.token)))
+			return -EINVAL;
+		args->v0.object = nvif_handle(&chan->chan->user);
+		args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
+		return 0;
+	}
+
+	args->v0.object = nvif_handle(&abi16->device.object);
+	args->v0.owner  = NVIF_IOCTL_V0_OWNER_ANY;
+	return 0;
+}
+
 int
 nouveau_abi16_ioctl_channel_free(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_channel_free *req = data;
-	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 
 	if (unlikely(!abi16))
@@ -366,7 +406,7 @@ int
 nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_grobj_alloc *init = data;
-	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nouveau_abi16_ntfy *ntfy;
 	struct nvif_client *client;
@@ -459,7 +499,7 @@ nouveau_abi16_ioctl_notifierobj_alloc(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_notifierobj_alloc *info = data;
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nouveau_abi16_ntfy *ntfy;
 	struct nvif_device *device = &abi16->device;
@@ -531,7 +571,7 @@ int
 nouveau_abi16_ioctl_gpuobj_free(ABI16_IOCTL_ARGS)
 {
 	struct drm_nouveau_gpuobj_free *fini = data;
-	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv, dev);
+	struct nouveau_abi16 *abi16 = nouveau_abi16_get(file_priv);
 	struct nouveau_abi16_chan *chan;
 	struct nouveau_abi16_ntfy *ntfy;
 	int ret = -ENOENT;

drivers/gpu/drm/nouveau/nouveau_abi16.h

@@ -33,11 +33,11 @@ struct nouveau_abi16 {
 	u64 handles;
 };
 
-struct nouveau_drm;
-struct nouveau_abi16 *nouveau_abi16_get(struct drm_file *, struct drm_device *);
+struct nouveau_abi16 *nouveau_abi16_get(struct drm_file *);
 int  nouveau_abi16_put(struct nouveau_abi16 *, int);
 void nouveau_abi16_fini(struct nouveau_abi16 *);
 s32  nouveau_abi16_swclass(struct nouveau_drm *);
+int  nouveau_abi16_usif(struct drm_file *, void *data, u32 size);
 
 #define NOUVEAU_GEM_DOMAIN_VRAM      (1 << 1)
 #define NOUVEAU_GEM_DOMAIN_GART      (1 << 2)