Blame intel/intel_chipset.c

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/*
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 * Copyright (C) 2018 Intel Corporation
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 */
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#include "intel_chipset.h"
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#include <inttypes.h>
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#include <stdbool.h>
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#include "i915_pciids.h"
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#undef INTEL_VGA_DEVICE
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#define INTEL_VGA_DEVICE(id, gen) { id, gen }
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static const struct pci_device {
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	uint16_t device;
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	uint16_t gen;
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} pciids[] = {
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	/* Keep ids sorted by gen; latest gen first */
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	INTEL_TGL_12_IDS(12),
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	INTEL_EHL_IDS(11),
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	INTEL_ICL_11_IDS(11),
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	INTEL_CNL_IDS(10),
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	INTEL_CFL_IDS(9),
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	INTEL_GLK_IDS(9),
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	INTEL_KBL_IDS(9),
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	INTEL_BXT_IDS(9),
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	INTEL_SKL_IDS(9),
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};
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drm_private bool intel_is_genx(unsigned int devid, int gen)
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{
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	const struct pci_device *p,
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		  *pend = pciids + sizeof(pciids) / sizeof(pciids[0]);
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	for (p = pciids; p < pend; p++) {
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		/* PCI IDs are sorted */
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		if (p->gen < gen)
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			break;
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		if (p->device != devid)
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			continue;
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		if (gen == p->gen)
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			return true;
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		break;
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	}
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	return false;
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}
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drm_private bool intel_get_genx(unsigned int devid, int *gen)
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{
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	const struct pci_device *p,
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		  *pend = pciids + sizeof(pciids) / sizeof(pciids[0]);
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	for (p = pciids; p < pend; p++) {
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		if (p->device != devid)
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			continue;
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		if (gen)
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			*gen = p->gen;
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		return true;
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	}
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	return false;
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}