drivers/gpu/drm/amd/display/dc/dcn10/rv1_clk_mgr_clk.c

   1 /*
   2  * Copyright 2012-16 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 "reg_helper.h"
  27 #include "clk_mgr_internal.h"
  28 #include "rv1_clk_mgr_clk.h"
  29
  30 #include "ip/Discovery/hwid.h"
  31 #include "ip/Discovery/v1/ip_offset_1.h"
  32 #include "ip/CLK/clk_10_0_default.h"
  33 #include "ip/CLK/clk_10_0_offset.h"
  34 #include "ip/CLK/clk_10_0_reg.h"
  35 #include "ip/CLK/clk_10_0_sh_mask.h"
  36
  37 #include "dce/dce_clk_mgr.h"
  38
  39 #define CLK_BASE_INNER(inst) \
  40         CLK_BASE__INST ## inst ## _SEG0
  41
  42
  43 #define CLK_REG(reg_name, block, inst)\
  44         CLK_BASE(mm ## block ## _ ## inst ## _ ## reg_name ## _BASE_IDX) + \
  45                                         mm ## block ## _ ## inst ## _ ## reg_name
  46
  47 #define REG(reg_name) \
  48         CLK_REG(reg_name, CLK0, 0)
  49
  50
  51 /* Only used by testing framework*/
  52 void rv1_dump_clk_registers(struct clk_state_registers *regs, struct clk_bypass *bypass, struct clk_mgr *clk_mgr_base)
  53 {
  54         struct clk_mgr_internal *clk_mgr = TO_CLK_MGR_INTERNAL(clk_mgr_base);
  55
  56                 regs->CLK0_CLK8_CURRENT_CNT = REG_READ(CLK0_CLK8_CURRENT_CNT) / 10; //dcf clk
  57
  58                 bypass->dcfclk_bypass = REG_READ(CLK0_CLK8_BYPASS_CNTL) & 0x0007;
  59                 if (bypass->dcfclk_bypass < 0 || bypass->dcfclk_bypass > 4)
  60                         bypass->dcfclk_bypass = 0;
  61
  62
  63                 regs->CLK0_CLK8_DS_CNTL = REG_READ(CLK0_CLK8_DS_CNTL) / 10;     //dcf deep sleep divider
  64
  65                 regs->CLK0_CLK8_ALLOW_DS = REG_READ(CLK0_CLK8_ALLOW_DS); //dcf deep sleep allow
  66
  67                 regs->CLK0_CLK10_CURRENT_CNT = REG_READ(CLK0_CLK10_CURRENT_CNT) / 10; //dpref clk
  68
  69                 bypass->dispclk_pypass = REG_READ(CLK0_CLK10_BYPASS_CNTL) & 0x0007;
  70                 if (bypass->dispclk_pypass < 0 || bypass->dispclk_pypass > 4)
  71                         bypass->dispclk_pypass = 0;
  72
  73                 regs->CLK0_CLK11_CURRENT_CNT = REG_READ(CLK0_CLK11_CURRENT_CNT) / 10; //disp clk
  74
  75                 bypass->dprefclk_bypass = REG_READ(CLK0_CLK11_BYPASS_CNTL) & 0x0007;
  76                 if (bypass->dprefclk_bypass < 0 || bypass->dprefclk_bypass > 4)
  77                         bypass->dprefclk_bypass = 0;
  78
  79 }