JFIF$        dd7 

Viewing File: /usr/src/kernels/5.14.0-570.32.1.el9_6.x86_64/include/drm/ttm/ttm_kmap_iter.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2021 Intel Corporation
 */
#ifndef __TTM_KMAP_ITER_H__
#define __TTM_KMAP_ITER_H__

#include <linux/types.h>

struct ttm_kmap_iter;
struct iosys_map;

/**
 * struct ttm_kmap_iter_ops - Ops structure for a struct
 * ttm_kmap_iter.
 * @maps_tt: Whether the iterator maps TT memory directly, as opposed
 * mapping a TT through an aperture. Both these modes have
 * struct ttm_resource_manager::use_tt set, but the latter typically
 * returns is_iomem == true from ttm_mem_io_reserve.
 */
struct ttm_kmap_iter_ops {
	/**
	 * @map_local: Map a PAGE_SIZE part of the resource using
	 * kmap_local semantics.
	 * @res_iter: Pointer to the struct ttm_kmap_iter representing
	 * the resource.
	 * @dmap: The struct iosys_map holding the virtual address after
	 * the operation.
	 * @i: The location within the resource to map. PAGE_SIZE granularity.
	 */
	void (*map_local)(struct ttm_kmap_iter *res_iter,
			  struct iosys_map *dmap, pgoff_t i);
	/**
	 * @unmap_local: Unmap a PAGE_SIZE part of the resource previously
	 * mapped using kmap_local.
	 * @res_iter: Pointer to the struct ttm_kmap_iter representing
	 * the resource.
	 * @dmap: The struct iosys_map holding the virtual address after
	 * the operation.
	 */
	void (*unmap_local)(struct ttm_kmap_iter *res_iter,
			    struct iosys_map *dmap);
	bool maps_tt;
};

/**
 * struct ttm_kmap_iter - Iterator for kmap_local type operations on a
 * resource.
 * @ops: Pointer to the operations struct.
 *
 * This struct is intended to be embedded in a resource-specific specialization
 * implementing operations for the resource.
 *
 * Nothing stops us from extending the operations to vmap, vmap_pfn etc,
 * replacing some or parts of the ttm_bo_util. cpu-map functionality.
 */
struct ttm_kmap_iter {
	const struct ttm_kmap_iter_ops *ops;
};

#endif /* __TTM_KMAP_ITER_H__ */
Back to Directory  nL+D550H?Mx ,D"v]qv;6*Zqn)ZP0!1 A "#a$2Qr D8 a Ri[f\mIykIw0cuFcRı?lO7к_f˓[C$殷WF<_W ԣsKcëIzyQy/_LKℂ;C",pFA:/]=H  ~,ls/9ć:[=/#f;)x{ٛEQ )~ =𘙲r*2~ a _V=' kumFD}KYYC)({ *g&f`툪ry`=^cJ.I](*`wq1dđ#̩͑0;H]u搂@:~וKL Nsh}OIR*8:2 !lDJVo(3=M(zȰ+i*NAr6KnSl)!JJӁ* %݉?|D}d5:eP0R;{$X'xF@.ÊB {,WJuQɲRI;9QE琯62fT.DUJ;*cP A\ILNj!J۱+O\͔]ޒS߼Jȧc%ANolՎprULZԛerE2=XDXgVQeӓk yP7U*omQIs,K`)6\G3t?pgjrmۛجwluGtfh9uyP0D;Uڽ"OXlif$)&|ML0Zrm1[HXPlPR0'G=i2N+0e2]]9VTPO׮7h(F*癈'=QVZDF,d߬~TX G[`le69CR(!S2!P <0x<!1AQ "Raq02Br#SCTb ?Ζ"]mH5WR7k.ۛ!}Q~+yԏz|@T20S~Kek *zFf^2X*(@8r?CIuI|֓>^ExLgNUY+{.RѪ τV׸YTD I62'8Y27'\TP.6d&˦@Vqi|8-OΕ]ʔ U=TL8=;6c| !qfF3aů&~$l}'NWUs$Uk^SV:U# 6w++s&r+nڐ{@29 gL u"TÙM=6(^"7r}=6YݾlCuhquympǦ GjhsǜNlɻ}o7#S6aw4!OSrD57%|?x>L |/nD6?/8w#[)L7+6〼T ATg!%5MmZ/c-{1_Je"|^$'O&ޱմTrb$w)R$& N1EtdU3Uȉ1pM"N*(DNyd96.(jQ)X 5cQɎMyW?Q*!R>6=7)Xj5`J]e8%t!+'!1Q5 !1 AQaqё#2"0BRb?Gt^## .llQT $v,,m㵜5ubV =sY+@d{N! dnO<.-B;_wJt6;QJd.Qc%p{ 1,sNDdFHI0ГoXшe黅XۢF:)[FGXƹ/w_cMeD,ʡcc.WDtA$j@:) -# u c1<@ۗ9F)KJ-hpP]_x[qBlbpʖw q"LFGdƶ*s+ډ_Zc"?%t[IP 6J]#=ɺVvvCGsGh1 >)6|ey?Lӣm,4GWUi`]uJVoVDG< SB6ϏQ@ TiUlyOU0kfV~~}SZ@*WUUi##; s/[=!7}"WN]'(L! ~y5g9T̅JkbM' +s:S +B)v@Mj e Cf jE 0Y\QnzG1д~Wo{T9?`Rmyhsy3!HAD]mc1~2LSu7xT;j$`}4->L#vzŏILS ֭T{rjGKC;bpU=-`BsK.SFw4Mq]ZdHS0)tLg