drm/nouveau/nvif: simplify and tidy library interfaces

A variety of tweaks to the NVIF library interfaces, mostly ripping out
things that turned out to be not so useful.

- Removed refcounting from nvif_object, callers are expected to not be
  stupid instead.
- nvif_client is directly reachable from anything derived from nvif_object,
  removing the need for heuristics to locate it
- _new() versions of interfaces, that allocate memory for the object
  they construct, have been removed.  The vast majority of callers used
  the embedded _init() interfaces.
- No longer storing constructor arguments (and the data returned from
  nvkm) inside nvif_object, it's more or less unused and just wastes
  memory.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

8 files changed, 45 insertions, 43 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv04/arb.c b/drivers/gpu/drm/nouveau/dispnv04/arb.c
index c636142..82bd465 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/arb.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/arb.c
@@ -198,7 +198,7 @@ nv04_update_arb(struct drm_device *dev, int VClk, int bpp,
 		int *burst, int *lwm)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nv_fifo_info fifo_data;
 	struct nv_sim_state sim_data;
 	int MClk = nouveau_hw_get_clock(dev, PLL_MEMORY);
diff --git a/drivers/gpu/drm/nouveau/dispnv04/dac.c b/drivers/gpu/drm/nouveau/dispnv04/dac.c
index 81c1efb..71e99cd 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/dac.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/dac.c
@@ -65,7 +65,8 @@ int nv04_dac_output_offset(struct drm_encoder *encoder)
 
 static int sample_load_twice(struct drm_device *dev, bool sense[2])
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nouveau_drm *drm = nouveau_drm(dev);
+	struct nvif_object *device = &drm->device.object;
 	int i;
 
 	for (i = 0; i < 2; i++) {
@@ -79,19 +80,19 @@ static int sample_load_twice(struct drm_device *dev, bool sense[2])
 		 * use a 10ms timeout (guards against crtc being inactive, in
 		 * which case blank state would never change)
 		 */
-		if (nvif_msec(device, 10,
+		if (nvif_msec(&drm->device, 10,
 			if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1))
 				break;
 		) < 0)
 			return -EBUSY;
 
-		if (nvif_msec(device, 10,
+		if (nvif_msec(&drm->device, 10,
 			if ( (nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1))
 				break;
 		) < 0)
 			return -EBUSY;
 
-		if (nvif_msec(device, 10,
+		if (nvif_msec(&drm->device, 10,
 			if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 1))
 				break;
 		) < 0)
@@ -132,7 +133,7 @@ static enum drm_connector_status nv04_dac_detect(struct drm_encoder *encoder,
 						 struct drm_connector *connector)
 {
 	struct drm_device *dev = encoder->dev;
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	uint8_t saved_seq1, saved_pi, saved_rpc1, saved_cr_mode;
 	uint8_t saved_palette0[3], saved_palette_mask;
@@ -235,8 +236,8 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nvif_device *device = &nouveau_drm(dev)->device;
-	struct nvkm_gpio *gpio = nvxx_gpio(device);
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
+	struct nvkm_gpio *gpio = nvxx_gpio(&drm->device);
 	struct dcb_output *dcb = nouveau_encoder(encoder)->dcb;
 	uint32_t sample, testval, regoffset = nv04_dac_output_offset(encoder);
 	uint32_t saved_powerctrl_2 = 0, saved_powerctrl_4 = 0, saved_routput,
diff --git a/drivers/gpu/drm/nouveau/dispnv04/dfp.c b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
index a85e725..522e91a 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/dfp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/dfp.c
@@ -281,7 +281,7 @@ static void nv04_dfp_mode_set(struct drm_encoder *encoder,
 			      struct drm_display_mode *adjusted_mode)
 {
 	struct drm_device *dev = encoder->dev;
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
 	struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c
index 018a448..9e65008 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c
@@ -47,7 +47,7 @@ nv04_display_create(struct drm_device *dev)
 	if (!disp)
 		return -ENOMEM;
 
-	nvif_object_map(nvif_object(&drm->device));
+	nvif_object_map(&drm->device.object);
 
 	nouveau_display(dev)->priv = disp;
 	nouveau_display(dev)->dtor = nv04_display_destroy;
@@ -153,7 +153,7 @@ nv04_display_destroy(struct drm_device *dev)
 	nouveau_display(dev)->priv = NULL;
 	kfree(disp);
 
-	nvif_object_unmap(nvif_object(&drm->device));
+	nvif_object_unmap(&drm->device.object);
 }
 
 int
diff --git a/drivers/gpu/drm/nouveau/dispnv04/hw.c b/drivers/gpu/drm/nouveau/dispnv04/hw.c
index 5039bb5..956a833 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/hw.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/hw.c
@@ -165,8 +165,8 @@ nouveau_hw_get_pllvals(struct drm_device *dev, enum nvbios_pll_type plltype,
 		       struct nvkm_pll_vals *pllvals)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nvif_device *device = &drm->device;
-	struct nvkm_bios *bios = nvxx_bios(device);
+	struct nvif_object *device = &drm->device.object;
+	struct nvkm_bios *bios = nvxx_bios(&drm->device);
 	uint32_t reg1, pll1, pll2 = 0;
 	struct nvbios_pll pll_lim;
 	int ret;
@@ -660,7 +660,7 @@ nv_load_state_ext(struct drm_device *dev, int head,
 		  struct nv04_mode_state *state)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	struct nvif_device *device = &drm->device;
+	struct nvif_object *device = &drm->device.object;
 	struct nv04_crtc_reg *regp = &state->crtc_reg[head];
 	uint32_t reg900;
 	int i;
@@ -677,10 +677,10 @@ nv_load_state_ext(struct drm_device *dev, int head,
 		nvif_wr32(device, NV_PVIDEO_INTR_EN, 0);
 		nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(0), 0);
 		nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(1), 0);
-		nvif_wr32(device, NV_PVIDEO_LIMIT(0), device->info.ram_size - 1);
-		nvif_wr32(device, NV_PVIDEO_LIMIT(1), device->info.ram_size - 1);
-		nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(0), device->info.ram_size - 1);
-		nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(1), device->info.ram_size - 1);
+		nvif_wr32(device, NV_PVIDEO_LIMIT(0), drm->device.info.ram_size - 1);
+		nvif_wr32(device, NV_PVIDEO_LIMIT(1), drm->device.info.ram_size - 1);
+		nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(0), drm->device.info.ram_size - 1);
+		nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(1), drm->device.info.ram_size - 1);
 		nvif_wr32(device, NV_PBUS_POWERCTRL_2, 0);
 
 		NVWriteCRTC(dev, head, NV_PCRTC_CURSOR_CONFIG, regp->cursor_cfg);
@@ -740,11 +740,11 @@ nv_load_state_ext(struct drm_device *dev, int head,
 		if (drm->device.info.family < NV_DEVICE_INFO_V0_KELVIN) {
 			/* Not waiting for vertical retrace before modifying
 			   CRE_53/CRE_54 causes lockups. */
-			nvif_msec(device, 650,
+			nvif_msec(&drm->device, 650,
 				if ( (nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 8))
 					break;
 			);
-			nvif_msec(device, 650,
+			nvif_msec(&drm->device, 650,
 				if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 8))
 					break;
 			);
@@ -770,7 +770,7 @@ static void
 nv_save_state_palette(struct drm_device *dev, int head,
 		      struct nv04_mode_state *state)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	int head_offset = head * NV_PRMDIO_SIZE, i;
 
 	nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
@@ -789,7 +789,7 @@ void
 nouveau_hw_load_state_palette(struct drm_device *dev, int head,
 			      struct nv04_mode_state *state)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	int head_offset = head * NV_PRMDIO_SIZE, i;
 
 	nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
diff --git a/drivers/gpu/drm/nouveau/dispnv04/hw.h b/drivers/gpu/drm/nouveau/dispnv04/hw.h
index 6c79617..3bded60 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/hw.h
+++ b/drivers/gpu/drm/nouveau/dispnv04/hw.h
@@ -60,7 +60,7 @@ extern void nouveau_calc_arb(struct drm_device *, int vclk, int bpp,
 static inline uint32_t NVReadCRTC(struct drm_device *dev,
 					int head, uint32_t reg)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	uint32_t val;
 	if (head)
 		reg += NV_PCRTC0_SIZE;
@@ -71,7 +71,7 @@ static inline uint32_t NVReadCRTC(struct drm_device *dev,
 static inline void NVWriteCRTC(struct drm_device *dev,
 					int head, uint32_t reg, uint32_t val)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	if (head)
 		reg += NV_PCRTC0_SIZE;
 	nvif_wr32(device, reg, val);
@@ -80,7 +80,7 @@ static inline void NVWriteCRTC(struct drm_device *dev,
 static inline uint32_t NVReadRAMDAC(struct drm_device *dev,
 					int head, uint32_t reg)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	uint32_t val;
 	if (head)
 		reg += NV_PRAMDAC0_SIZE;
@@ -91,7 +91,7 @@ static inline uint32_t NVReadRAMDAC(struct drm_device *dev,
 static inline void NVWriteRAMDAC(struct drm_device *dev,
 					int head, uint32_t reg, uint32_t val)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	if (head)
 		reg += NV_PRAMDAC0_SIZE;
 	nvif_wr32(device, reg, val);
@@ -120,7 +120,7 @@ static inline void nv_write_tmds(struct drm_device *dev,
 static inline void NVWriteVgaCrtc(struct drm_device *dev,
 					int head, uint8_t index, uint8_t value)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	nvif_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
 	nvif_wr08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE, value);
 }
@@ -128,7 +128,7 @@ static inline void NVWriteVgaCrtc(struct drm_device *dev,
 static inline uint8_t NVReadVgaCrtc(struct drm_device *dev,
 					int head, uint8_t index)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	uint8_t val;
 	nvif_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
 	val = nvif_rd08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE);
@@ -165,7 +165,7 @@ static inline uint8_t NVReadVgaCrtc5758(struct drm_device *dev, int head, uint8_
 static inline uint8_t NVReadPRMVIO(struct drm_device *dev,
 					int head, uint32_t reg)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	uint8_t val;
 
@@ -181,7 +181,7 @@ static inline uint8_t NVReadPRMVIO(struct drm_device *dev,
 static inline void NVWritePRMVIO(struct drm_device *dev,
 					int head, uint32_t reg, uint8_t value)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 
 	/* Only NV4x have two pvio ranges; other twoHeads cards MUST call
@@ -194,14 +194,14 @@ static inline void NVWritePRMVIO(struct drm_device *dev,
 
 static inline void NVSetEnablePalette(struct drm_device *dev, int head, bool enable)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 	nvif_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, enable ? 0 : 0x20);
 }
 
 static inline bool NVGetEnablePalette(struct drm_device *dev, int head)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 	return !(nvif_rd08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE) & 0x20);
 }
@@ -209,7 +209,7 @@ static inline bool NVGetEnablePalette(struct drm_device *dev, int head)
 static inline void NVWriteVgaAttr(struct drm_device *dev,
 					int head, uint8_t index, uint8_t value)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	if (NVGetEnablePalette(dev, head))
 		index &= ~0x20;
 	else
@@ -223,7 +223,7 @@ static inline void NVWriteVgaAttr(struct drm_device *dev,
 static inline uint8_t NVReadVgaAttr(struct drm_device *dev,
 					int head, uint8_t index)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	uint8_t val;
 	if (NVGetEnablePalette(dev, head))
 		index &= ~0x20;
@@ -259,7 +259,7 @@ static inline void NVVgaProtect(struct drm_device *dev, int head, bool protect)
 static inline bool
 nv_heads_tied(struct drm_device *dev)
 {
-	struct nvif_device *device = &nouveau_drm(dev)->device;
+	struct nvif_object *device = &nouveau_drm(dev)->device.object;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 
 	if (drm->device.info.chipset == 0x11)
diff --git a/drivers/gpu/drm/nouveau/dispnv04/overlay.c b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
index 5f6ea18..aeebdd4 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/overlay.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/overlay.c
@@ -96,7 +96,8 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 		  uint32_t src_x, uint32_t src_y,
 		  uint32_t src_w, uint32_t src_h)
 {
-	struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
+	struct nouveau_drm *drm = nouveau_drm(plane->dev);
+	struct nvif_object *dev = &drm->device.object;
 	struct nouveau_plane *nv_plane =
 		container_of(plane, struct nouveau_plane, base);
 	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
@@ -118,7 +119,7 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 	if (format > 0xffff)
 		return -ERANGE;
 
-	if (dev->info.chipset >= 0x30) {
+	if (drm->device.info.chipset >= 0x30) {
 		if (crtc_w < (src_w >> 1) || crtc_h < (src_h >> 1))
 			return -ERANGE;
 	} else {
@@ -173,7 +174,7 @@ nv10_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 static int
 nv10_disable_plane(struct drm_plane *plane)
 {
-	struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
+	struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
 	struct nouveau_plane *nv_plane =
 		container_of(plane, struct nouveau_plane, base);
 
@@ -197,7 +198,7 @@ nv_destroy_plane(struct drm_plane *plane)
 static void
 nv10_set_params(struct nouveau_plane *plane)
 {
-	struct nvif_device *dev = &nouveau_drm(plane->base.dev)->device;
+	struct nvif_object *dev = &nouveau_drm(plane->base.dev)->device.object;
 	u32 luma = (plane->brightness - 512) << 16 | plane->contrast;
 	u32 chroma = ((sin_mul(plane->hue, plane->saturation) & 0xffff) << 16) |
 		(cos_mul(plane->hue, plane->saturation) & 0xffff);
@@ -346,7 +347,7 @@ nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 		  uint32_t src_x, uint32_t src_y,
 		  uint32_t src_w, uint32_t src_h)
 {
-	struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
+	struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
 	struct nouveau_plane *nv_plane =
 		container_of(plane, struct nouveau_plane, base);
 	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
@@ -426,7 +427,7 @@ nv04_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 static int
 nv04_disable_plane(struct drm_plane *plane)
 {
-	struct nvif_device *dev = &nouveau_drm(plane->dev)->device;
+	struct nvif_object *dev = &nouveau_drm(plane->dev)->device.object;
 	struct nouveau_plane *nv_plane =
 		container_of(plane, struct nouveau_plane, base);
 
diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.h b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.h
index 225894c..459910b 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.h
+++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.h
@@ -131,13 +131,13 @@ static inline void nv_write_ptv(struct drm_device *dev, uint32_t reg,
 				uint32_t val)
 {
 	struct nvif_device *device = &nouveau_drm(dev)->device;
-	nvif_wr32(device, reg, val);
+	nvif_wr32(&device->object, reg, val);
 }
 
 static inline uint32_t nv_read_ptv(struct drm_device *dev, uint32_t reg)
 {
 	struct nvif_device *device = &nouveau_drm(dev)->device;
-	return nvif_rd32(device, reg);
+	return nvif_rd32(&device->object, reg);
 }
 
 static inline void nv_write_tv_enc(struct drm_device *dev, uint8_t reg,