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      1 /*	$NetBSD: nouveau_nvkm_subdev_fb_gp102.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2016 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Ben Skeggs <bskeggs (at) redhat.com>
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_fb_gp102.c,v 1.3 2021/12/19 10:51:58 riastradh Exp $");
     28 
     29 #include "gf100.h"
     30 #include "ram.h"
     31 
     32 #include <core/firmware.h>
     33 #include <core/memory.h>
     34 #include <nvfw/fw.h>
     35 #include <nvfw/hs.h>
     36 #include <engine/nvdec.h>
     37 
     38 #include <linux/nbsd-namespace.h>
     39 
     40 int
     41 gp102_fb_vpr_scrub(struct nvkm_fb *fb)
     42 {
     43 	struct nvkm_subdev *subdev = &fb->subdev;
     44 	struct nvkm_device *device = subdev->device;
     45 	struct nvkm_falcon *falcon = &device->nvdec[0]->falcon;
     46 	struct nvkm_blob *blob = &fb->vpr_scrubber;
     47 	const struct nvfw_bin_hdr *hsbin_hdr;
     48 	const struct nvfw_hs_header *fw_hdr;
     49 	const struct nvfw_hs_load_header *lhdr;
     50 	void *scrub_data;
     51 	u32 patch_loc, patch_sig;
     52 	int ret;
     53 
     54 	nvkm_falcon_get(falcon, subdev);
     55 
     56 	hsbin_hdr = nvfw_bin_hdr(subdev, blob->data);
     57 	fw_hdr = nvfw_hs_header(subdev, blob->data + hsbin_hdr->header_offset);
     58 	lhdr = nvfw_hs_load_header(subdev, blob->data + fw_hdr->hdr_offset);
     59 	scrub_data = blob->data + hsbin_hdr->data_offset;
     60 
     61 	patch_loc = *(u32 *)(blob->data + fw_hdr->patch_loc);
     62 	patch_sig = *(u32 *)(blob->data + fw_hdr->patch_sig);
     63 	if (falcon->debug) {
     64 		memcpy(scrub_data + patch_loc,
     65 		       blob->data + fw_hdr->sig_dbg_offset + patch_sig,
     66 		       fw_hdr->sig_dbg_size);
     67 	} else {
     68 		memcpy(scrub_data + patch_loc,
     69 		       blob->data + fw_hdr->sig_prod_offset + patch_sig,
     70 		       fw_hdr->sig_prod_size);
     71 	}
     72 
     73 	nvkm_falcon_reset(falcon);
     74 	nvkm_falcon_bind_context(falcon, NULL);
     75 
     76 	nvkm_falcon_load_imem(falcon, scrub_data, lhdr->non_sec_code_off,
     77 			      lhdr->non_sec_code_size,
     78 			      lhdr->non_sec_code_off >> 8, 0, false);
     79 	nvkm_falcon_load_imem(falcon, scrub_data + lhdr->apps[0],
     80 			      ALIGN(lhdr->apps[0], 0x100),
     81 			      lhdr->apps[1],
     82 			      lhdr->apps[0] >> 8, 0, true);
     83 	nvkm_falcon_load_dmem(falcon, scrub_data + lhdr->data_dma_base, 0,
     84 			      lhdr->data_size, 0);
     85 
     86 	nvkm_falcon_set_start_addr(falcon, 0x0);
     87 	nvkm_falcon_start(falcon);
     88 
     89 	ret = nvkm_falcon_wait_for_halt(falcon, 500);
     90 	if (ret < 0) {
     91 		ret = -ETIMEDOUT;
     92 		goto end;
     93 	}
     94 
     95 	/* put nvdec in clean state - without reset it will remain in HS mode */
     96 	nvkm_falcon_reset(falcon);
     97 end:
     98 	nvkm_falcon_put(falcon, subdev);
     99 	return ret;
    100 }
    101 
    102 bool
    103 gp102_fb_vpr_scrub_required(struct nvkm_fb *fb)
    104 {
    105 	struct nvkm_device *device = fb->subdev.device;
    106 	nvkm_wr32(device, 0x100cd0, 0x2);
    107 	return (nvkm_rd32(device, 0x100cd0) & 0x00000010) != 0;
    108 }
    109 
    110 static const struct nvkm_fb_func
    111 gp102_fb = {
    112 	.dtor = gf100_fb_dtor,
    113 	.oneinit = gf100_fb_oneinit,
    114 	.init = gp100_fb_init,
    115 	.init_remapper = gp100_fb_init_remapper,
    116 	.init_page = gm200_fb_init_page,
    117 	.vpr.scrub_required = gp102_fb_vpr_scrub_required,
    118 	.vpr.scrub = gp102_fb_vpr_scrub,
    119 	.ram_new = gp100_ram_new,
    120 };
    121 
    122 int
    123 gp102_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
    124 	      int index, struct nvkm_fb **pfb)
    125 {
    126 	int ret = gf100_fb_new_(func, device, index, pfb);
    127 	if (ret)
    128 		return ret;
    129 
    130 	nvkm_firmware_load_blob(&(*pfb)->subdev, "nvdec/scrubber", "", 0,
    131 				&(*pfb)->vpr_scrubber);
    132 	return 0;
    133 }
    134 
    135 int
    136 gp102_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
    137 {
    138 	return gp102_fb_new_(&gp102_fb, device, index, pfb);
    139 }
    140 
    141 MODULE_FIRMWARE("nvidia/gp102/nvdec/scrubber.bin");
    142 MODULE_FIRMWARE("nvidia/gp104/nvdec/scrubber.bin");
    143 MODULE_FIRMWARE("nvidia/gp106/nvdec/scrubber.bin");
    144 MODULE_FIRMWARE("nvidia/gp107/nvdec/scrubber.bin");
    145 MODULE_FIRMWARE("nvidia/gp108/nvdec/scrubber.bin");
    146