drm/nouveau/bios: add pci data structure parsing (8d85e06b) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/gpu/drm/nouveau/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ nouveau-y += core/subdev/bios/i2c.o
		nouveau-y += core/subdev/bios/image.o
		nouveau-y += core/subdev/bios/init.o
		nouveau-y += core/subdev/bios/mxm.o
		nouveau-y += core/subdev/bios/pcir.o
		nouveau-y += core/subdev/bios/perf.o
		nouveau-y += core/subdev/bios/pll.o
		nouveau-y += core/subdev/bios/ramcfg.o

drivers/gpu/drm/nouveau/core/include/subdev/bios/pcir.h

0 → 100644

+18 −0

Original line number	Diff line number	Diff line
		#ifndef __NVBIOS_PCIR_H__
		#define __NVBIOS_PCIR_H__

		struct nvbios_pcirT {
		u16 vendor_id;
		u16 device_id;
		u8 class_code[3];
		u32 image_size;
		u16 image_rev;
		u8 image_type;
		bool last;
		};

		u32 nvbios_pcirTe(struct nouveau_bios , u32, u8 ver, u16 *hdr);
		u32 nvbios_pcirTp(struct nouveau_bios , u32, u8 ver, u16 *hdr,
		struct nvbios_pcirT *);

		#endif

drivers/gpu/drm/nouveau/core/subdev/bios/pcir.c

0 → 100644

+67 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2014 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 <bskeggs@redhat.com>
		*/

		#include <subdev/bios.h>
		#include <subdev/bios/pcir.h>

		u32
		nvbios_pcirTe(struct nouveau_bios bios, u32 base, u8 ver, u16 *hdr)
		{
		u32 data = nv_ro16(bios, base + 0x18);
		if (data) {
		data += base;
		switch (nv_ro32(bios, data + 0x00)) {
		case 0x52494350: /* PCIR */
		*hdr = nv_ro16(bios, data + 0x0a);
		*ver = nv_ro08(bios, data + 0x0c);
		break;
		default:
		nv_debug(bios, "%08x: PCIR signature (%08x) unknown\n",
		data, nv_ro32(bios, data + 0x00));
		data = 0;
		break;
		}
		}
		return data;
		}

		u32
		nvbios_pcirTp(struct nouveau_bios bios, u32 base, u8 ver, u16 *hdr,
		struct nvbios_pcirT *info)
		{
		u32 data = nvbios_pcirTe(bios, base, ver, hdr);
		memset(info, 0x00, sizeof(*info));
		if (data) {
		info->vendor_id = nv_ro16(bios, data + 0x04);
		info->device_id = nv_ro16(bios, data + 0x06);
		info->class_code[0] = nv_ro08(bios, data + 0x0d);
		info->class_code[1] = nv_ro08(bios, data + 0x0e);
		info->class_code[2] = nv_ro08(bios, data + 0x0f);
		info->image_size = nv_ro16(bios, data + 0x10) * 512;
		info->image_rev = nv_ro16(bios, data + 0x12);
		info->image_type = nv_ro08(bios, data + 0x14);
		info->last = nv_ro08(bios, data + 0x15) & 0x80;
		}
		return data;
		}