cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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hw_host1x02_channel.h (3265B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/*
      3 * Copyright (c) 2013 NVIDIA Corporation.
      4 */
      5
      6 /*
      7  * Function naming determines intended use:
      8  *
      9  *     <x>_r(void) : Returns the offset for register <x>.
     10  *
     11  *     <x>_w(void) : Returns the word offset for word (4 byte) element <x>.
     12  *
     13  *     <x>_<y>_s(void) : Returns size of field <y> of register <x> in bits.
     14  *
     15  *     <x>_<y>_f(u32 v) : Returns a value based on 'v' which has been shifted
     16  *         and masked to place it at field <y> of register <x>.  This value
     17  *         can be |'d with others to produce a full register value for
     18  *         register <x>.
     19  *
     20  *     <x>_<y>_m(void) : Returns a mask for field <y> of register <x>.  This
     21  *         value can be ~'d and then &'d to clear the value of field <y> for
     22  *         register <x>.
     23  *
     24  *     <x>_<y>_<z>_f(void) : Returns the constant value <z> after being shifted
     25  *         to place it at field <y> of register <x>.  This value can be |'d
     26  *         with others to produce a full register value for <x>.
     27  *
     28  *     <x>_<y>_v(u32 r) : Returns the value of field <y> from a full register
     29  *         <x> value 'r' after being shifted to place its LSB at bit 0.
     30  *         This value is suitable for direct comparison with other unshifted
     31  *         values appropriate for use in field <y> of register <x>.
     32  *
     33  *     <x>_<y>_<z>_v(void) : Returns the constant value for <z> defined for
     34  *         field <y> of register <x>.  This value is suitable for direct
     35  *         comparison with unshifted values appropriate for use in field <y>
     36  *         of register <x>.
     37  */
     38
     39#ifndef HOST1X_HW_HOST1X02_CHANNEL_H
     40#define HOST1X_HW_HOST1X02_CHANNEL_H
     41
     42static inline u32 host1x_channel_fifostat_r(void)
     43{
     44	return 0x0;
     45}
     46#define HOST1X_CHANNEL_FIFOSTAT \
     47	host1x_channel_fifostat_r()
     48static inline u32 host1x_channel_fifostat_cfempty_v(u32 r)
     49{
     50	return (r >> 11) & 0x1;
     51}
     52#define HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(r) \
     53	host1x_channel_fifostat_cfempty_v(r)
     54static inline u32 host1x_channel_dmastart_r(void)
     55{
     56	return 0x14;
     57}
     58#define HOST1X_CHANNEL_DMASTART \
     59	host1x_channel_dmastart_r()
     60static inline u32 host1x_channel_dmaput_r(void)
     61{
     62	return 0x18;
     63}
     64#define HOST1X_CHANNEL_DMAPUT \
     65	host1x_channel_dmaput_r()
     66static inline u32 host1x_channel_dmaget_r(void)
     67{
     68	return 0x1c;
     69}
     70#define HOST1X_CHANNEL_DMAGET \
     71	host1x_channel_dmaget_r()
     72static inline u32 host1x_channel_dmaend_r(void)
     73{
     74	return 0x20;
     75}
     76#define HOST1X_CHANNEL_DMAEND \
     77	host1x_channel_dmaend_r()
     78static inline u32 host1x_channel_dmactrl_r(void)
     79{
     80	return 0x24;
     81}
     82#define HOST1X_CHANNEL_DMACTRL \
     83	host1x_channel_dmactrl_r()
     84static inline u32 host1x_channel_dmactrl_dmastop(void)
     85{
     86	return 1 << 0;
     87}
     88#define HOST1X_CHANNEL_DMACTRL_DMASTOP \
     89	host1x_channel_dmactrl_dmastop()
     90static inline u32 host1x_channel_dmactrl_dmastop_v(u32 r)
     91{
     92	return (r >> 0) & 0x1;
     93}
     94#define HOST1X_CHANNEL_DMACTRL_DMASTOP_V(r) \
     95	host1x_channel_dmactrl_dmastop_v(r)
     96static inline u32 host1x_channel_dmactrl_dmagetrst(void)
     97{
     98	return 1 << 1;
     99}
    100#define HOST1X_CHANNEL_DMACTRL_DMAGETRST \
    101	host1x_channel_dmactrl_dmagetrst()
    102static inline u32 host1x_channel_dmactrl_dmainitget(void)
    103{
    104	return 1 << 2;
    105}
    106#define HOST1X_CHANNEL_DMACTRL_DMAINITGET \
    107	host1x_channel_dmactrl_dmainitget()
    108
    109#endif