1 files changed, 363 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c
new file mode 100644
index 000000000..be0b2cefd
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/gk20a.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved.
+ *
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+#include "gf100.h"
+#include "ctxgf100.h"
+
+#include <core/firmware.h>
+#include <subdev/timer.h>
+
+#include <nvif/class.h>
+
+struct gk20a_fw_av
+{
+	u32 addr;
+	u32 data;
+};
+
+static int
+gk20a_gr_av_to_init(struct gf100_gr *gr, const char *path, const char *name,
+		    int ver, struct gf100_gr_pack **ppack)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_blob blob;
+	struct gf100_gr_init *init;
+	struct gf100_gr_pack *pack;
+	int nent;
+	int ret;
+	int i;
+
+	ret = nvkm_firmware_load_blob(subdev, path, name, ver, &blob);
+	if (ret)
+		return ret;
+
+	nent = (blob.size / sizeof(struct gk20a_fw_av));
+	pack = vzalloc((sizeof(*pack) * 2) + (sizeof(*init) * (nent + 1)));
+	if (!pack) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	init = (void *)(pack + 2);
+	pack[0].init = init;
+
+	for (i = 0; i < nent; i++) {
+		struct gf100_gr_init *ent = &init[i];
+		struct gk20a_fw_av *av = &((struct gk20a_fw_av *)blob.data)[i];
+
+		ent->addr = av->addr;
+		ent->data = av->data;
+		ent->count = 1;
+		ent->pitch = 1;
+	}
+
+	*ppack = pack;
+
+end:
+	nvkm_blob_dtor(&blob);
+	return ret;
+}
+
+struct gk20a_fw_aiv
+{
+	u32 addr;
+	u32 index;
+	u32 data;
+};
+
+static int
+gk20a_gr_aiv_to_init(struct gf100_gr *gr, const char *path, const char *name,
+		     int ver, struct gf100_gr_pack **ppack)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_blob blob;
+	struct gf100_gr_init *init;
+	struct gf100_gr_pack *pack;
+	int nent;
+	int ret;
+	int i;
+
+	ret = nvkm_firmware_load_blob(subdev, path, name, ver, &blob);
+	if (ret)
+		return ret;
+
+	nent = (blob.size / sizeof(struct gk20a_fw_aiv));
+	pack = vzalloc((sizeof(*pack) * 2) + (sizeof(*init) * (nent + 1)));
+	if (!pack) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	init = (void *)(pack + 2);
+	pack[0].init = init;
+
+	for (i = 0; i < nent; i++) {
+		struct gf100_gr_init *ent = &init[i];
+		struct gk20a_fw_aiv *av = &((struct gk20a_fw_aiv *)blob.data)[i];
+
+		ent->addr = av->addr;
+		ent->data = av->data;
+		ent->count = 1;
+		ent->pitch = 1;
+	}
+
+	*ppack = pack;
+
+end:
+	nvkm_blob_dtor(&blob);
+	return ret;
+}
+
+static int
+gk20a_gr_av_to_method(struct gf100_gr *gr, const char *path, const char *name,
+		      int ver, struct gf100_gr_pack **ppack)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_blob blob;
+	struct gf100_gr_init *init;
+	struct gf100_gr_pack *pack;
+	/* We don't suppose we will initialize more than 16 classes here... */
+	static const unsigned int max_classes = 16;
+	u32 classidx = 0, prevclass = 0;
+	int nent;
+	int ret;
+	int i;
+
+	ret = nvkm_firmware_load_blob(subdev, path, name, ver, &blob);
+	if (ret)
+		return ret;
+
+	nent = (blob.size / sizeof(struct gk20a_fw_av));
+
+	pack = vzalloc((sizeof(*pack) * (max_classes + 1)) +
+		       (sizeof(*init) * (nent + max_classes + 1)));
+	if (!pack) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	init = (void *)(pack + max_classes + 1);
+
+	for (i = 0; i < nent; i++, init++) {
+		struct gk20a_fw_av *av = &((struct gk20a_fw_av *)blob.data)[i];
+		u32 class = av->addr & 0xffff;
+		u32 addr = (av->addr & 0xffff0000) >> 14;
+
+		if (prevclass != class) {
+			if (prevclass) /* Add terminator to the method list. */
+				init++;
+			pack[classidx].init = init;
+			pack[classidx].type = class;
+			prevclass = class;
+			if (++classidx >= max_classes) {
+				vfree(pack);
+				ret = -ENOSPC;
+				goto end;
+			}
+		}
+
+		init->addr = addr;
+		init->data = av->data;
+		init->count = 1;
+		init->pitch = 1;
+	}
+
+	*ppack = pack;
+
+end:
+	nvkm_blob_dtor(&blob);
+	return ret;
+}
+
+static int
+gk20a_gr_wait_mem_scrubbing(struct gf100_gr *gr)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+	struct nvkm_device *device = subdev->device;
+
+	if (nvkm_msec(device, 2000,
+		if (!(nvkm_rd32(device, 0x40910c) & 0x00000006))
+			break;
+	) < 0) {
+		nvkm_error(subdev, "FECS mem scrubbing timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	if (nvkm_msec(device, 2000,
+		if (!(nvkm_rd32(device, 0x41a10c) & 0x00000006))
+			break;
+	) < 0) {
+		nvkm_error(subdev, "GPCCS mem scrubbing timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static void
+gk20a_gr_set_hww_esr_report_mask(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+	nvkm_wr32(device, 0x419e44, 0x1ffffe);
+	nvkm_wr32(device, 0x419e4c, 0x7f);
+}
+
+int
+gk20a_gr_init(struct gf100_gr *gr)
+{
+	struct nvkm_device *device = gr->base.engine.subdev.device;
+	int ret;
+
+	/* Clear SCC RAM */
+	nvkm_wr32(device, 0x40802c, 0x1);
+
+	gf100_gr_mmio(gr, gr->sw_nonctx);
+
+	ret = gk20a_gr_wait_mem_scrubbing(gr);
+	if (ret)
+		return ret;
+
+	ret = gf100_gr_wait_idle(gr);
+	if (ret)
+		return ret;
+
+	/* MMU debug buffer */
+	if (gr->func->init_gpc_mmu)
+		gr->func->init_gpc_mmu(gr);
+
+	/* Set the PE as stream master */
+	nvkm_mask(device, 0x503018, 0x1, 0x1);
+
+	/* Zcull init */
+	gr->func->init_zcull(gr);
+
+	gr->func->init_rop_active_fbps(gr);
+
+	/* Enable FIFO access */
+	nvkm_wr32(device, 0x400500, 0x00010001);
+
+	/* Enable interrupts */
+	nvkm_wr32(device, 0x400100, 0xffffffff);
+	nvkm_wr32(device, 0x40013c, 0xffffffff);
+
+	/* Enable FECS error interrupts */
+	nvkm_wr32(device, 0x409c24, 0x000f0000);
+
+	/* Enable hardware warning exceptions */
+	nvkm_wr32(device, 0x404000, 0xc0000000);
+	nvkm_wr32(device, 0x404600, 0xc0000000);
+
+	if (gr->func->set_hww_esr_report_mask)
+		gr->func->set_hww_esr_report_mask(gr);
+
+	/* Enable TPC exceptions per GPC */
+	nvkm_wr32(device, 0x419d0c, 0x2);
+	nvkm_wr32(device, 0x41ac94, (((1 << gr->tpc_total) - 1) & 0xff) << 16);
+
+	/* Reset and enable all exceptions */
+	nvkm_wr32(device, 0x400108, 0xffffffff);
+	nvkm_wr32(device, 0x400138, 0xffffffff);
+	nvkm_wr32(device, 0x400118, 0xffffffff);
+	nvkm_wr32(device, 0x400130, 0xffffffff);
+	nvkm_wr32(device, 0x40011c, 0xffffffff);
+	nvkm_wr32(device, 0x400134, 0xffffffff);
+
+	gf100_gr_zbc_init(gr);
+
+	return gf100_gr_init_ctxctl(gr);
+}
+
+static const struct gf100_gr_func
+gk20a_gr = {
+	.oneinit_tiles = gf100_gr_oneinit_tiles,
+	.oneinit_sm_id = gf100_gr_oneinit_sm_id,
+	.init = gk20a_gr_init,
+	.init_zcull = gf117_gr_init_zcull,
+	.init_rop_active_fbps = gk104_gr_init_rop_active_fbps,
+	.trap_mp = gf100_gr_trap_mp,
+	.set_hww_esr_report_mask = gk20a_gr_set_hww_esr_report_mask,
+	.rops = gf100_gr_rops,
+	.ppc_nr = 1,
+	.grctx = &gk20a_grctx,
+	.zbc = &gf100_gr_zbc,
+	.sclass = {
+		{ -1, -1, FERMI_TWOD_A },
+		{ -1, -1, KEPLER_INLINE_TO_MEMORY_A },
+		{ -1, -1, KEPLER_C, &gf100_fermi },
+		{ -1, -1, KEPLER_COMPUTE_A },
+		{}
+	}
+};
+
+int
+gk20a_gr_load_sw(struct gf100_gr *gr, const char *path, int ver)
+{
+	if (gk20a_gr_av_to_init(gr, path, "sw_nonctx", ver, &gr->sw_nonctx) ||
+	    gk20a_gr_aiv_to_init(gr, path, "sw_ctx", ver, &gr->sw_ctx) ||
+	    gk20a_gr_av_to_init(gr, path, "sw_bundle_init", ver, &gr->bundle) ||
+	    gk20a_gr_av_to_method(gr, path, "sw_method_init", ver, &gr->method))
+		return -ENOENT;
+
+	return 0;
+}
+
+#if IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) || IS_ENABLED(CONFIG_ARCH_TEGRA_132_SOC)
+MODULE_FIRMWARE("nvidia/gk20a/fecs_data.bin");
+MODULE_FIRMWARE("nvidia/gk20a/fecs_inst.bin");
+MODULE_FIRMWARE("nvidia/gk20a/gpccs_data.bin");
+MODULE_FIRMWARE("nvidia/gk20a/gpccs_inst.bin");
+MODULE_FIRMWARE("nvidia/gk20a/sw_bundle_init.bin");
+MODULE_FIRMWARE("nvidia/gk20a/sw_ctx.bin");
+MODULE_FIRMWARE("nvidia/gk20a/sw_method_init.bin");
+MODULE_FIRMWARE("nvidia/gk20a/sw_nonctx.bin");
+#endif
+
+static int
+gk20a_gr_load(struct gf100_gr *gr, int ver, const struct gf100_gr_fwif *fwif)
+{
+	struct nvkm_subdev *subdev = &gr->base.engine.subdev;
+
+	if (nvkm_firmware_load_blob(subdev, "", "fecs_inst", ver,
+				    &gr->fecs.inst) ||
+	    nvkm_firmware_load_blob(subdev, "", "fecs_data", ver,
+				    &gr->fecs.data) ||
+	    nvkm_firmware_load_blob(subdev, "", "gpccs_inst", ver,
+				    &gr->gpccs.inst) ||
+	    nvkm_firmware_load_blob(subdev, "", "gpccs_data", ver,
+				    &gr->gpccs.data))
+		return -ENOENT;
+
+	gr->firmware = true;
+
+	return gk20a_gr_load_sw(gr, "", ver);
+}
+
+static const struct gf100_gr_fwif
+gk20a_gr_fwif[] = {
+	{ 0, gk20a_gr_load, &gk20a_gr },
+	{}
+};
+
+int
+gk20a_gr_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gr **pgr)
+{
+	return gf100_gr_new_(gk20a_gr_fwif, device, type, inst, pgr);
+}