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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dcn31_hubp.c (3928B)

      1/*
      2 * Copyright 2012-20 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: AMD
     23 *
     24 */
     25
     26#include "dm_services.h"
     27#include "dce_calcs.h"
     28#include "reg_helper.h"
     29#include "basics/conversion.h"
     30#include "dcn31_hubp.h"
     31
     32#define REG(reg)\
     33	hubp2->hubp_regs->reg
     34
     35#define CTX \
     36	hubp2->base.ctx
     37
     38#undef FN
     39#define FN(reg_name, field_name) \
     40	hubp2->hubp_shift->field_name, hubp2->hubp_mask->field_name
     41
     42void hubp31_set_unbounded_requesting(struct hubp *hubp, bool enable)
     43{
     44	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
     45
     46	REG_UPDATE(DCHUBP_CNTL, HUBP_UNBOUNDED_REQ_MODE, enable);
     47	REG_UPDATE(CURSOR_CONTROL, CURSOR_REQ_MODE, enable);
     48}
     49
     50void hubp31_soft_reset(struct hubp *hubp, bool reset)
     51{
     52	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
     53
     54	REG_UPDATE(DCHUBP_CNTL, HUBP_SOFT_RESET, reset);
     55}
     56
     57static void hubp31_program_extended_blank(struct hubp *hubp,
     58					  unsigned int min_dst_y_next_start_optimized)
     59{
     60	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
     61
     62	REG_SET(BLANK_OFFSET_1, 0, MIN_DST_Y_NEXT_START, min_dst_y_next_start_optimized);
     63}
     64
     65static struct hubp_funcs dcn31_hubp_funcs = {
     66	.hubp_enable_tripleBuffer = hubp2_enable_triplebuffer,
     67	.hubp_is_triplebuffer_enabled = hubp2_is_triplebuffer_enabled,
     68	.hubp_program_surface_flip_and_addr = hubp3_program_surface_flip_and_addr,
     69	.hubp_program_surface_config = hubp3_program_surface_config,
     70	.hubp_is_flip_pending = hubp2_is_flip_pending,
     71	.hubp_setup = hubp3_setup,
     72	.hubp_setup_interdependent = hubp2_setup_interdependent,
     73	.hubp_set_vm_system_aperture_settings = hubp3_set_vm_system_aperture_settings,
     74	.set_blank = hubp2_set_blank,
     75	.dcc_control = hubp3_dcc_control,
     76	.mem_program_viewport = min_set_viewport,
     77	.set_cursor_attributes	= hubp2_cursor_set_attributes,
     78	.set_cursor_position	= hubp2_cursor_set_position,
     79	.hubp_clk_cntl = hubp2_clk_cntl,
     80	.hubp_vtg_sel = hubp2_vtg_sel,
     81	.dmdata_set_attributes = hubp3_dmdata_set_attributes,
     82	.dmdata_load = hubp2_dmdata_load,
     83	.dmdata_status_done = hubp2_dmdata_status_done,
     84	.hubp_read_state = hubp3_read_state,
     85	.hubp_clear_underflow = hubp2_clear_underflow,
     86	.hubp_set_flip_control_surface_gsl = hubp2_set_flip_control_surface_gsl,
     87	.hubp_init = hubp3_init,
     88	.set_unbounded_requesting = hubp31_set_unbounded_requesting,
     89	.hubp_soft_reset = hubp31_soft_reset,
     90	.hubp_in_blank = hubp1_in_blank,
     91	.program_extended_blank = hubp31_program_extended_blank,
     92};
     93
     94bool hubp31_construct(
     95	struct dcn20_hubp *hubp2,
     96	struct dc_context *ctx,
     97	uint32_t inst,
     98	const struct dcn_hubp2_registers *hubp_regs,
     99	const struct dcn_hubp2_shift *hubp_shift,
    100	const struct dcn_hubp2_mask *hubp_mask)
    101{
    102	hubp2->base.funcs = &dcn31_hubp_funcs;
    103	hubp2->base.ctx = ctx;
    104	hubp2->hubp_regs = hubp_regs;
    105	hubp2->hubp_shift = hubp_shift;
    106	hubp2->hubp_mask = hubp_mask;
    107	hubp2->base.inst = inst;
    108	hubp2->base.opp_id = OPP_ID_INVALID;
    109	hubp2->base.mpcc_id = 0xf;
    110
    111	return true;
    112}