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1bba7323c7
For proper operation of i915 we need usable PCI GTTMMADDR BAR 0 (1 for GEN2). In most cases we also need usable PCI GFXMEM BAR 2. Let's add functions to check if BARs are set, and that it have a size greater than 0. In case GTTMMADDR BAR, let's validate at the beginning of i915 initialization. For other BARs, let's validate before first use. Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220805155959.1983584-3-piotr.piorkowski@intel.com
18 lines
338 B
C
18 lines
338 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef __I915_PCI_H__
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#define __I915_PCI_H__
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#include <linux/types.h>
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struct pci_dev;
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int i915_pci_register_driver(void);
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void i915_pci_unregister_driver(void);
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bool i915_pci_resource_valid(struct pci_dev *pdev, int bar);
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#endif /* __I915_PCI_H__ */
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