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https://github.com/edk2-porting/linux-next.git
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6236451d83
Add support for host1x debugging. Adds debugfs entries, and dumps channel state to UART in case of stuck job. Signed-off-by: Arto Merilainen <amerilainen@nvidia.com> Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Thierry Reding <thierry.reding@avionic-design.de> Tested-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/*
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* Copyright (c) 2012-2013, NVIDIA Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* Function naming determines intended use:
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*
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* <x>_r(void) : Returns the offset for register <x>.
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*
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* <x>_w(void) : Returns the word offset for word (4 byte) element <x>.
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*
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* <x>_<y>_s(void) : Returns size of field <y> of register <x> in bits.
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*
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* <x>_<y>_f(u32 v) : Returns a value based on 'v' which has been shifted
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* and masked to place it at field <y> of register <x>. This value
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* can be |'d with others to produce a full register value for
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* register <x>.
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*
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* <x>_<y>_m(void) : Returns a mask for field <y> of register <x>. This
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* value can be ~'d and then &'d to clear the value of field <y> for
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* register <x>.
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*
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* <x>_<y>_<z>_f(void) : Returns the constant value <z> after being shifted
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* to place it at field <y> of register <x>. This value can be |'d
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* with others to produce a full register value for <x>.
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*
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* <x>_<y>_v(u32 r) : Returns the value of field <y> from a full register
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* <x> value 'r' after being shifted to place its LSB at bit 0.
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* This value is suitable for direct comparison with other unshifted
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* values appropriate for use in field <y> of register <x>.
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*
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* <x>_<y>_<z>_v(void) : Returns the constant value for <z> defined for
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* field <y> of register <x>. This value is suitable for direct
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* comparison with unshifted values appropriate for use in field <y>
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* of register <x>.
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*/
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#ifndef __hw_host1x_channel_host1x_h__
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#define __hw_host1x_channel_host1x_h__
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static inline u32 host1x_channel_fifostat_r(void)
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{
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return 0x0;
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}
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#define HOST1X_CHANNEL_FIFOSTAT \
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host1x_channel_fifostat_r()
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static inline u32 host1x_channel_fifostat_cfempty_v(u32 r)
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{
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return (r >> 10) & 0x1;
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}
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#define HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(r) \
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host1x_channel_fifostat_cfempty_v(r)
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static inline u32 host1x_channel_dmastart_r(void)
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{
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return 0x14;
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}
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#define HOST1X_CHANNEL_DMASTART \
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host1x_channel_dmastart_r()
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static inline u32 host1x_channel_dmaput_r(void)
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{
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return 0x18;
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}
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#define HOST1X_CHANNEL_DMAPUT \
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host1x_channel_dmaput_r()
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static inline u32 host1x_channel_dmaget_r(void)
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{
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return 0x1c;
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}
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#define HOST1X_CHANNEL_DMAGET \
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host1x_channel_dmaget_r()
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static inline u32 host1x_channel_dmaend_r(void)
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{
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return 0x20;
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}
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#define HOST1X_CHANNEL_DMAEND \
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host1x_channel_dmaend_r()
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static inline u32 host1x_channel_dmactrl_r(void)
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{
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return 0x24;
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}
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#define HOST1X_CHANNEL_DMACTRL \
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host1x_channel_dmactrl_r()
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static inline u32 host1x_channel_dmactrl_dmastop(void)
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{
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return 1 << 0;
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}
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#define HOST1X_CHANNEL_DMACTRL_DMASTOP \
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host1x_channel_dmactrl_dmastop()
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static inline u32 host1x_channel_dmactrl_dmastop_v(u32 r)
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{
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return (r >> 0) & 0x1;
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}
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#define HOST1X_CHANNEL_DMACTRL_DMASTOP_V(r) \
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host1x_channel_dmactrl_dmastop_v(r)
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static inline u32 host1x_channel_dmactrl_dmagetrst(void)
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{
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return 1 << 1;
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}
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#define HOST1X_CHANNEL_DMACTRL_DMAGETRST \
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host1x_channel_dmactrl_dmagetrst()
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static inline u32 host1x_channel_dmactrl_dmainitget(void)
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{
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return 1 << 2;
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}
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#define HOST1X_CHANNEL_DMACTRL_DMAINITGET \
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host1x_channel_dmactrl_dmainitget()
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#endif
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