1 files changed, 302 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c
new file mode 100644
index 000000000..8a286a934
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c
@@ -0,0 +1,302 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "priv.h"
+#include "ram.h"
+
+#include <core/memory.h>
+#include <core/option.h>
+#include <subdev/bios.h>
+#include <subdev/bios/M0203.h>
+#include <engine/gr.h>
+#include <engine/mpeg.h>
+
+void
+nvkm_fb_tile_fini(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
+{
+	fb->func->tile.fini(fb, region, tile);
+}
+
+void
+nvkm_fb_tile_init(struct nvkm_fb *fb, int region, u32 addr, u32 size,
+		  u32 pitch, u32 flags, struct nvkm_fb_tile *tile)
+{
+	fb->func->tile.init(fb, region, addr, size, pitch, flags, tile);
+}
+
+void
+nvkm_fb_tile_prog(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
+{
+	struct nvkm_device *device = fb->subdev.device;
+	if (fb->func->tile.prog) {
+		fb->func->tile.prog(fb, region, tile);
+		if (device->gr)
+			nvkm_engine_tile(&device->gr->engine, region);
+		if (device->mpeg)
+			nvkm_engine_tile(device->mpeg, region);
+	}
+}
+
+static void
+nvkm_fb_sysmem_flush_page_init(struct nvkm_device *device)
+{
+	struct nvkm_fb *fb = device->fb;
+
+	if (fb->func->sysmem.flush_page_init)
+		fb->func->sysmem.flush_page_init(fb);
+}
+
+int
+nvkm_fb_bios_memtype(struct nvkm_bios *bios)
+{
+	struct nvkm_subdev *subdev = &bios->subdev;
+	struct nvkm_device *device = subdev->device;
+	const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
+	struct nvbios_M0203E M0203E;
+	u8 ver, hdr;
+
+	if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
+		switch (M0203E.type) {
+		case M0203E_TYPE_DDR2  : return NVKM_RAM_TYPE_DDR2;
+		case M0203E_TYPE_DDR3  : return NVKM_RAM_TYPE_DDR3;
+		case M0203E_TYPE_GDDR3 : return NVKM_RAM_TYPE_GDDR3;
+		case M0203E_TYPE_GDDR5 : return NVKM_RAM_TYPE_GDDR5;
+		case M0203E_TYPE_GDDR5X: return NVKM_RAM_TYPE_GDDR5X;
+		case M0203E_TYPE_GDDR6 : return NVKM_RAM_TYPE_GDDR6;
+		case M0203E_TYPE_HBM2  : return NVKM_RAM_TYPE_HBM2;
+		default:
+			nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
+			return NVKM_RAM_TYPE_UNKNOWN;
+		}
+	}
+
+	nvkm_warn(subdev, "M0203E not matched!\n");
+	return NVKM_RAM_TYPE_UNKNOWN;
+}
+
+static void
+nvkm_fb_intr(struct nvkm_subdev *subdev)
+{
+	struct nvkm_fb *fb = nvkm_fb(subdev);
+	if (fb->func->intr)
+		fb->func->intr(fb);
+}
+
+static int
+nvkm_fb_oneinit(struct nvkm_subdev *subdev)
+{
+	struct nvkm_fb *fb = nvkm_fb(subdev);
+	u32 tags = 0;
+
+	if (fb->func->ram_new) {
+		int ret = fb->func->ram_new(fb, &fb->ram);
+		if (ret) {
+			nvkm_error(subdev, "vram setup failed, %d\n", ret);
+			return ret;
+		}
+	}
+
+	if (fb->func->oneinit) {
+		int ret = fb->func->oneinit(fb);
+		if (ret)
+			return ret;
+	}
+
+	/* Initialise compression tag allocator.
+	 *
+	 * LTC oneinit() will override this on Fermi and newer.
+	 */
+	if (fb->func->tags) {
+		tags = fb->func->tags(fb);
+		nvkm_debug(subdev, "%d comptags\n", tags);
+	}
+
+	return nvkm_mm_init(&fb->tags.mm, 0, 0, tags, 1);
+}
+
+int
+nvkm_fb_mem_unlock(struct nvkm_fb *fb)
+{
+	struct nvkm_subdev *subdev = &fb->subdev;
+	int ret;
+
+	if (!fb->func->vpr.scrub_required)
+		return 0;
+
+	ret = nvkm_subdev_oneinit(subdev);
+	if (ret)
+		return ret;
+
+	if (!fb->func->vpr.scrub_required(fb)) {
+		nvkm_debug(subdev, "VPR not locked\n");
+		return 0;
+	}
+
+	nvkm_debug(subdev, "VPR locked, running scrubber binary\n");
+
+	if (!fb->vpr_scrubber.fw.img) {
+		nvkm_warn(subdev, "VPR locked, but no scrubber binary!\n");
+		return 0;
+	}
+
+	ret = fb->func->vpr.scrub(fb);
+	if (ret) {
+		nvkm_error(subdev, "VPR scrubber binary failed\n");
+		return ret;
+	}
+
+	if (fb->func->vpr.scrub_required(fb)) {
+		nvkm_error(subdev, "VPR still locked after scrub!\n");
+		return -EIO;
+	}
+
+	nvkm_debug(subdev, "VPR scrubber binary successful\n");
+	return 0;
+}
+
+u64
+nvkm_fb_vidmem_size(struct nvkm_device *device)
+{
+	struct nvkm_fb *fb = device->fb;
+
+	if (fb && fb->func->vidmem.size)
+		return fb->func->vidmem.size(fb);
+
+	WARN_ON(1);
+	return 0;
+}
+
+static int
+nvkm_fb_init(struct nvkm_subdev *subdev)
+{
+	struct nvkm_fb *fb = nvkm_fb(subdev);
+	int ret, i;
+
+	if (fb->ram) {
+		ret = nvkm_ram_init(fb->ram);
+		if (ret)
+			return ret;
+	}
+
+	for (i = 0; i < fb->tile.regions; i++)
+		fb->func->tile.prog(fb, i, &fb->tile.region[i]);
+
+	nvkm_fb_sysmem_flush_page_init(subdev->device);
+
+	if (fb->func->init)
+		fb->func->init(fb);
+
+	if (fb->func->init_remapper)
+		fb->func->init_remapper(fb);
+
+	if (fb->func->init_page) {
+		ret = fb->func->init_page(fb);
+		if (WARN_ON(ret))
+			return ret;
+	}
+
+	if (fb->func->init_unkn)
+		fb->func->init_unkn(fb);
+
+	return 0;
+}
+
+static int
+nvkm_fb_preinit(struct nvkm_subdev *subdev)
+{
+	nvkm_fb_sysmem_flush_page_init(subdev->device);
+	return 0;
+}
+
+static void *
+nvkm_fb_dtor(struct nvkm_subdev *subdev)
+{
+	struct nvkm_fb *fb = nvkm_fb(subdev);
+	int i;
+
+	nvkm_memory_unref(&fb->mmu_wr);
+	nvkm_memory_unref(&fb->mmu_rd);
+
+	for (i = 0; i < fb->tile.regions; i++)
+		fb->func->tile.fini(fb, i, &fb->tile.region[i]);
+
+	nvkm_mm_fini(&fb->tags.mm);
+	mutex_destroy(&fb->tags.mutex);
+
+	nvkm_ram_del(&fb->ram);
+
+	nvkm_falcon_fw_dtor(&fb->vpr_scrubber);
+
+	if (fb->sysmem.flush_page) {
+		dma_unmap_page(subdev->device->dev, fb->sysmem.flush_page_addr,
+			       PAGE_SIZE, DMA_BIDIRECTIONAL);
+		__free_page(fb->sysmem.flush_page);
+	}
+
+	if (fb->func->dtor)
+		return fb->func->dtor(fb);
+
+	return fb;
+}
+
+static const struct nvkm_subdev_func
+nvkm_fb = {
+	.dtor = nvkm_fb_dtor,
+	.preinit = nvkm_fb_preinit,
+	.oneinit = nvkm_fb_oneinit,
+	.init = nvkm_fb_init,
+	.intr = nvkm_fb_intr,
+};
+
+int
+nvkm_fb_ctor(const struct nvkm_fb_func *func, struct nvkm_device *device,
+	     enum nvkm_subdev_type type, int inst, struct nvkm_fb *fb)
+{
+	nvkm_subdev_ctor(&nvkm_fb, device, type, inst, &fb->subdev);
+	fb->func = func;
+	fb->tile.regions = fb->func->tile.regions;
+	fb->page = nvkm_longopt(device->cfgopt, "NvFbBigPage", fb->func->default_bigpage);
+	mutex_init(&fb->tags.mutex);
+
+	if (func->sysmem.flush_page_init) {
+		fb->sysmem.flush_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+		if (!fb->sysmem.flush_page)
+			return -ENOMEM;
+
+		fb->sysmem.flush_page_addr = dma_map_page(device->dev, fb->sysmem.flush_page,
+							  0, PAGE_SIZE, DMA_BIDIRECTIONAL);
+		if (dma_mapping_error(device->dev, fb->sysmem.flush_page_addr))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+
+int
+nvkm_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
+	     enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
+{
+	if (!(*pfb = kzalloc(sizeof(**pfb), GFP_KERNEL)))
+		return -ENOMEM;
+	return nvkm_fb_ctor(func, device, type, inst, *pfb);
+}