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      1 /*	$NetBSD: nouveau_nvkm_subdev_pci_g92.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2015 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_pci_g92.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
     28 
     29 #include "priv.h"
     30 
     31 int
     32 g92_pcie_version_supported(struct nvkm_pci *pci)
     33 {
     34 	if ((nvkm_pci_rd32(pci, 0x460) & 0x200) == 0x200)
     35 		return 2;
     36 	return 1;
     37 }
     38 
     39 static const struct nvkm_pci_func
     40 g92_pci_func = {
     41 	.init = g84_pci_init,
     42 	.rd32 = nv40_pci_rd32,
     43 	.wr08 = nv40_pci_wr08,
     44 	.wr32 = nv40_pci_wr32,
     45 	.msi_rearm = nv46_pci_msi_rearm,
     46 
     47 	.pcie.init = g84_pcie_init,
     48 	.pcie.set_link = g84_pcie_set_link,
     49 
     50 	.pcie.max_speed = g84_pcie_max_speed,
     51 	.pcie.cur_speed = g84_pcie_cur_speed,
     52 
     53 	.pcie.set_version = g84_pcie_set_version,
     54 	.pcie.version = g84_pcie_version,
     55 	.pcie.version_supported = g92_pcie_version_supported,
     56 };
     57 
     58 int
     59 g92_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
     60 {
     61 	return nvkm_pci_new_(&g92_pci_func, device, index, ppci);
     62 }
     63