vasilito
dc68054305
- Restore 29 recipe symlinks (libdrm, qtbase, dbus, sddm, pipewire, etc.) - Restore 33 patches (KDE, libdrm, mesa, pipewire, sddm, wireplumber) - Restore 20+ local/scripts (audit, lint, test, build helpers) - Restore src/cook/scheduler.rs, status.rs, gnu-config/ - Restore scripts/patch-inclusion-gate.sh, run_mini1.sh, validate-collision-log.sh - Recover TLC source from HEAD (was overwritten by 0.2.3 checkout) - Recover 11 local/docs plans from HEAD (were overwritten) - Recover qt6-wayland-smoke symlink from HEAD - Fix MOTD: remove garbled ASCII art, use clean text - Update version: 0.2.0 -> 0.2.4 in os-release, motd, config - Reduce filesystem_size: 1536 -> 512 MiB - Add ABSOLUTE RULE to AGENTS.md: never delete/ignore packages - Reduce pcid scheme log verbosity: info -> debug
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_IOMMU_HELPER_H
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#define _LINUX_IOMMU_HELPER_H
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#include <linux/bug.h>
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#include <linux/log2.h>
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#include <linux/math.h>
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#include <linux/types.h>
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static inline unsigned long iommu_device_max_index(unsigned long size,
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unsigned long offset,
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u64 dma_mask)
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{
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if (size + offset > dma_mask)
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return dma_mask - offset + 1;
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else
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return size;
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}
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static inline int iommu_is_span_boundary(unsigned int index, unsigned int nr,
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unsigned long shift, unsigned long boundary_size)
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{
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BUG_ON(!is_power_of_2(boundary_size));
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shift = (shift + index) & (boundary_size - 1);
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return shift + nr > boundary_size;
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}
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extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
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unsigned long start, unsigned int nr,
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unsigned long shift,
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unsigned long boundary_size,
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unsigned long align_mask);
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static inline unsigned long iommu_num_pages(unsigned long addr,
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unsigned long len,
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unsigned long io_page_size)
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{
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unsigned long size = (addr & (io_page_size - 1)) + len;
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return DIV_ROUND_UP(size, io_page_size);
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}
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#endif
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