Home | History | Annotate | Line # | Download | only in bar 
      1 /*	$NetBSD: nouveau_nvkm_subdev_bar_tu102.c,v 1.2 2021/12/18 23:45:38 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2018 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 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_bar_tu102.c,v 1.2 2021/12/18 23:45:38 riastradh Exp $");
     26 
     27 #include "gf100.h"
     28 
     29 #include <core/memory.h>
     30 #include <subdev/timer.h>
     31 
     32 static void
     33 tu102_bar_bar2_wait(struct nvkm_bar *bar)
     34 {
     35 	struct nvkm_device *device = bar->subdev.device;
     36 	nvkm_msec(device, 2000,
     37 		if (!(nvkm_rd32(device, 0xb80f50) & 0x0000000c))
     38 			break;
     39 	);
     40 }
     41 
     42 static void
     43 tu102_bar_bar2_fini(struct nvkm_bar *bar)
     44 {
     45 	nvkm_mask(bar->subdev.device, 0xb80f48, 0x80000000, 0x00000000);
     46 }
     47 
     48 static void
     49 tu102_bar_bar2_init(struct nvkm_bar *base)
     50 {
     51 	struct nvkm_device *device = base->subdev.device;
     52 	struct gf100_bar *bar = gf100_bar(base);
     53 	u32 addr = nvkm_memory_addr(bar->bar[0].inst) >> 12;
     54 	if (bar->bar2_halve)
     55 		addr |= 0x40000000;
     56 	nvkm_wr32(device, 0xb80f48, 0x80000000 | addr);
     57 }
     58 
     59 static void
     60 tu102_bar_bar1_wait(struct nvkm_bar *bar)
     61 {
     62 	struct nvkm_device *device = bar->subdev.device;
     63 	nvkm_msec(device, 2000,
     64 		if (!(nvkm_rd32(device, 0xb80f50) & 0x00000003))
     65 			break;
     66 	);
     67 }
     68 
     69 static void
     70 tu102_bar_bar1_fini(struct nvkm_bar *bar)
     71 {
     72 	nvkm_mask(bar->subdev.device, 0xb80f40, 0x80000000, 0x00000000);
     73 }
     74 
     75 static void
     76 tu102_bar_bar1_init(struct nvkm_bar *base)
     77 {
     78 	struct nvkm_device *device = base->subdev.device;
     79 	struct gf100_bar *bar = gf100_bar(base);
     80 	const u32 addr = nvkm_memory_addr(bar->bar[1].inst) >> 12;
     81 	nvkm_wr32(device, 0xb80f40, 0x80000000 | addr);
     82 }
     83 
     84 static const struct nvkm_bar_func
     85 tu102_bar = {
     86 	.dtor = gf100_bar_dtor,
     87 	.oneinit = gf100_bar_oneinit,
     88 	.bar1.init = tu102_bar_bar1_init,
     89 	.bar1.fini = tu102_bar_bar1_fini,
     90 	.bar1.wait = tu102_bar_bar1_wait,
     91 	.bar1.vmm = gf100_bar_bar1_vmm,
     92 	.bar2.init = tu102_bar_bar2_init,
     93 	.bar2.fini = tu102_bar_bar2_fini,
     94 	.bar2.wait = tu102_bar_bar2_wait,
     95 	.bar2.vmm = gf100_bar_bar2_vmm,
     96 	.flush = g84_bar_flush,
     97 };
     98 
     99 int
    100 tu102_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
    101 {
    102 	return gf100_bar_new_(&tu102_bar, device, index, pbar);
    103 }
    104