drm/nouveau/fb/gf100-: modify constructors to allow more customisation

GF108/GM107 implementations will want slightly different functions for
the upcoming RAM detection improvements.

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

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h

@@ -19,13 +19,24 @@ int  nv50_ram_get(struct nvkm_ram *, u64, u32, u32, u32, struct nvkm_mem **);
 void nv50_ram_put(struct nvkm_ram *, struct nvkm_mem **);
 void __nv50_ram_put(struct nvkm_ram *, struct nvkm_mem *);
 
+int gf100_ram_new_(const struct nvkm_ram_func *, struct nvkm_fb *,
+		   struct nvkm_ram **);
 int  gf100_ram_ctor(const struct nvkm_ram_func *, struct nvkm_fb *,
 		    u32, struct nvkm_ram *);
 int  gf100_ram_get(struct nvkm_ram *, u64, u32, u32, u32, struct nvkm_mem **);
 void gf100_ram_put(struct nvkm_ram *, struct nvkm_mem **);
+int gf100_ram_init(struct nvkm_ram *);
+int gf100_ram_calc(struct nvkm_ram *, u32);
+int gf100_ram_prog(struct nvkm_ram *);
+void gf100_ram_tidy(struct nvkm_ram *);
 
-int  gk104_ram_ctor(struct nvkm_fb *, struct nvkm_ram **, u32);
-int  gk104_ram_init(struct nvkm_ram *ram);
+int gk104_ram_new_(const struct nvkm_ram_func *, struct nvkm_fb *,
+		   struct nvkm_ram **, u32);
+void *gk104_ram_dtor(struct nvkm_ram *);
+int gk104_ram_init(struct nvkm_ram *);
+int gk104_ram_calc(struct nvkm_ram *, u32);
+int gk104_ram_prog(struct nvkm_ram *);
+void gk104_ram_tidy(struct nvkm_ram *);
 
 /* RAM type-specific MR calculation routines */
 int nvkm_sddr2_calc(struct nvkm_ram *);

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgf100.c

@@ -124,7 +124,7 @@ gf100_ram_train(struct gf100_ramfuc *fuc, u32 magic)
 	}
 }
 
-static int
+int
 gf100_ram_calc(struct nvkm_ram *base, u32 freq)
 {
 	struct gf100_ram *ram = gf100_ram(base);
@@ -404,7 +404,7 @@ gf100_ram_calc(struct nvkm_ram *base, u32 freq)
 	return 0;
 }
 
-static int
+int
 gf100_ram_prog(struct nvkm_ram *base)
 {
 	struct gf100_ram *ram = gf100_ram(base);
@@ -413,7 +413,7 @@ gf100_ram_prog(struct nvkm_ram *base)
 	return 0;
 }
 
-static void
+void
 gf100_ram_tidy(struct nvkm_ram *base)
 {
 	struct gf100_ram *ram = gf100_ram(base);
@@ -500,7 +500,7 @@ gf100_ram_get(struct nvkm_ram *ram, u64 size, u32 align, u32 ncmin,
 	return 0;
 }
 
-static int
+int
 gf100_ram_init(struct nvkm_ram *base)
 {
 	static const u8  train0[] = {
@@ -543,16 +543,6 @@ gf100_ram_init(struct nvkm_ram *base)
 	return 0;
 }
 
-static const struct nvkm_ram_func
-gf100_ram_func = {
-	.init = gf100_ram_init,
-	.get = gf100_ram_get,
-	.put = gf100_ram_put,
-	.calc = gf100_ram_calc,
-	.prog = gf100_ram_prog,
-	.tidy = gf100_ram_tidy,
-};
-
 int
 gf100_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
 	       u32 maskaddr, struct nvkm_ram *ram)
@@ -624,7 +614,8 @@ gf100_ram_ctor(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
 }
 
 int
-gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
+gf100_ram_new_(const struct nvkm_ram_func *func,
+	       struct nvkm_fb *fb, struct nvkm_ram **pram)
 {
 	struct nvkm_subdev *subdev = &fb->subdev;
 	struct nvkm_bios *bios = subdev->device->bios;
@@ -635,7 +626,7 @@ gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
 		return -ENOMEM;
 	*pram = &ram->base;
 
-	ret = gf100_ram_ctor(&gf100_ram_func, fb, 0x022554, &ram->base);
+	ret = gf100_ram_ctor(func, fb, 0x022554, &ram->base);
 	if (ret)
 		return ret;
 
@@ -711,3 +702,19 @@ gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
 	ram->fuc.r_0x13d8f4 = ramfuc_reg(0x13d8f4);
 	return 0;
 }
+
+static const struct nvkm_ram_func
+gf100_ram = {
+	.init = gf100_ram_init,
+	.get = gf100_ram_get,
+	.put = gf100_ram_put,
+	.calc = gf100_ram_calc,
+	.prog = gf100_ram_prog,
+	.tidy = gf100_ram_tidy,
+};
+
+int
+gf100_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
+{
+	return gf100_ram_new_(&gf100_ram, fb, pram);
+}

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgk104.c

@@ -1108,7 +1108,7 @@ gk104_ram_calc_xits(struct gk104_ram *ram, struct nvkm_ram_data *next)
 	return ret;
 }
 
-static int
+int
 gk104_ram_calc(struct nvkm_ram *base, u32 freq)
 {
 	struct gk104_ram *ram = gk104_ram(base);
@@ -1227,7 +1227,7 @@ gk104_ram_prog_0(struct gk104_ram *ram, u32 freq)
 	nvkm_mask(device, 0x10f444, mask, data);
 }
 
-static int
+int
 gk104_ram_prog(struct nvkm_ram *base)
 {
 	struct gk104_ram *ram = gk104_ram(base);
@@ -1247,7 +1247,7 @@ gk104_ram_prog(struct nvkm_ram *base)
 	return (ram->base.next == &ram->base.xition);
 }
 
-static void
+void
 gk104_ram_tidy(struct nvkm_ram *base)
 {
 	struct gk104_ram *ram = gk104_ram(base);
@@ -1509,7 +1509,7 @@ done:
 	return ret;
 }
 
-static void *
+void *
 gk104_ram_dtor(struct nvkm_ram *base)
 {
 	struct gk104_ram *ram = gk104_ram(base);
@@ -1522,31 +1522,14 @@ gk104_ram_dtor(struct nvkm_ram *base)
 	return ram;
 }
 
-static const struct nvkm_ram_func
-gk104_ram_func = {
-	.dtor = gk104_ram_dtor,
-	.init = gk104_ram_init,
-	.get = gf100_ram_get,
-	.put = gf100_ram_put,
-	.calc = gk104_ram_calc,
-	.prog = gk104_ram_prog,
-	.tidy = gk104_ram_tidy,
-};
-
 int
-gk104_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
-{
-	return gk104_ram_ctor(fb, pram, 0x022554);
-}
-
-int
-gk104_ram_ctor(struct nvkm_fb *fb, struct nvkm_ram **pram, u32 maskaddr)
+gk104_ram_new_(const struct nvkm_ram_func *func, struct nvkm_fb *fb,
+	       struct nvkm_ram **pram, u32 maskaddr)
 {
 	struct nvkm_subdev *subdev = &fb->subdev;
 	struct nvkm_device *device = subdev->device;
 	struct nvkm_bios *bios = device->bios;
-	struct nvkm_gpio *gpio = device->gpio;
-	struct dcb_gpio_func func;
+	struct dcb_gpio_func gpio;
 	struct gk104_ram *ram;
 	int ret, i;
 	u8  ramcfg = nvbios_ramcfg_index(subdev);
@@ -1556,7 +1539,7 @@ gk104_ram_ctor(struct nvkm_fb *fb, struct nvkm_ram **pram, u32 maskaddr)
 		return -ENOMEM;
 	*pram = &ram->base;
 
-	ret = gf100_ram_ctor(&gk104_ram_func, fb, maskaddr, &ram->base);
+	ret = gf100_ram_ctor(func, fb, maskaddr, &ram->base);
 	if (ret)
 		return ret;
 
@@ -1614,18 +1597,18 @@ gk104_ram_ctor(struct nvkm_fb *fb, struct nvkm_ram **pram, u32 maskaddr)
 	}
 
 	/* lookup memory voltage gpios */
-	ret = nvkm_gpio_find(gpio, 0, 0x18, DCB_GPIO_UNUSED, &func);
+	ret = nvkm_gpio_find(device->gpio, 0, 0x18, DCB_GPIO_UNUSED, &gpio);
 	if (ret == 0) {
-		ram->fuc.r_gpioMV = ramfuc_reg(0x00d610 + (func.line * 0x04));
-		ram->fuc.r_funcMV[0] = (func.log[0] ^ 2) << 12;
-		ram->fuc.r_funcMV[1] = (func.log[1] ^ 2) << 12;
+		ram->fuc.r_gpioMV = ramfuc_reg(0x00d610 + (gpio.line * 0x04));
+		ram->fuc.r_funcMV[0] = (gpio.log[0] ^ 2) << 12;
+		ram->fuc.r_funcMV[1] = (gpio.log[1] ^ 2) << 12;
 	}
 
-	ret = nvkm_gpio_find(gpio, 0, 0x2e, DCB_GPIO_UNUSED, &func);
+	ret = nvkm_gpio_find(device->gpio, 0, 0x2e, DCB_GPIO_UNUSED, &gpio);
 	if (ret == 0) {
-		ram->fuc.r_gpio2E = ramfuc_reg(0x00d610 + (func.line * 0x04));
-		ram->fuc.r_func2E[0] = (func.log[0] ^ 2) << 12;
-		ram->fuc.r_func2E[1] = (func.log[1] ^ 2) << 12;
+		ram->fuc.r_gpio2E = ramfuc_reg(0x00d610 + (gpio.line * 0x04));
+		ram->fuc.r_func2E[0] = (gpio.log[0] ^ 2) << 12;
+		ram->fuc.r_func2E[1] = (gpio.log[1] ^ 2) << 12;
 	}
 
 	ram->fuc.r_gpiotrig = ramfuc_reg(0x00d604);
@@ -1717,3 +1700,20 @@ gk104_ram_ctor(struct nvkm_fb *fb, struct nvkm_ram **pram, u32 maskaddr)
 	ram->fuc.r_0x100750 = ramfuc_reg(0x100750);
 	return 0;
 }
+
+static const struct nvkm_ram_func
+gk104_ram = {
+	.dtor = gk104_ram_dtor,
+	.init = gk104_ram_init,
+	.get = gf100_ram_get,
+	.put = gf100_ram_put,
+	.calc = gk104_ram_calc,
+	.prog = gk104_ram_prog,
+	.tidy = gk104_ram_tidy,
+};
+
+int
+gk104_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
+{
+	return gk104_ram_new_(&gk104_ram, fb, pram, 0x022554);
+}

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgm107.c

@@ -23,8 +23,19 @@
  */
 #include "ram.h"
 
+static const struct nvkm_ram_func
+gm107_ram = {
+	.dtor = gk104_ram_dtor,
+	.init = gk104_ram_init,
+	.get = gf100_ram_get,
+	.put = gf100_ram_put,
+	.calc = gk104_ram_calc,
+	.prog = gk104_ram_prog,
+	.tidy = gk104_ram_tidy,
+};
+
 int
 gm107_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
 {
-	return gk104_ram_ctor(fb, pram, 0x021c14);
+	return gk104_ram_new_(&gm107_ram, fb, pram, 0x021c14);
 }