sys/dev/drm/radeon/vce_v2_0.c

   1 /*
   2  * Copyright 2013 Advanced Micro Devices, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sub license, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * The above copyright notice and this permission notice (including the
  22  * next paragraph) shall be included in all copies or substantial portions
  23  * of the Software.
  24  *
  25  * Authors: Christian König <christian.koenig@amd.com>
  26  */
  27
  28 #include <linux/firmware.h>
  29 #include <drm/drmP.h>
  30 #include "radeon.h"
  31 #include "radeon_asic.h"
  32 #include "cikd.h"
  33
  34 #define VCE_V2_0_FW_SIZE        (256 * 1024)
  35 #define VCE_V2_0_STACK_SIZE     (64 * 1024)
  36 #define VCE_V2_0_DATA_SIZE      (23552 * RADEON_MAX_VCE_HANDLES)
  37
  38 static void vce_v2_0_set_sw_cg(struct radeon_device *rdev, bool gated)
  39 {
  40         u32 tmp;
  41
  42         if (gated) {
  43                 tmp = RREG32(VCE_CLOCK_GATING_B);
  44                 tmp |= 0xe70000;
  45                 WREG32(VCE_CLOCK_GATING_B, tmp);
  46
  47                 tmp = RREG32(VCE_UENC_CLOCK_GATING);
  48                 tmp |= 0xff000000;
  49                 WREG32(VCE_UENC_CLOCK_GATING, tmp);
  50
  51                 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
  52                 tmp &= ~0x3fc;
  53                 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
  54
  55                 WREG32(VCE_CGTT_CLK_OVERRIDE, 0);
  56     } else {
  57                 tmp = RREG32(VCE_CLOCK_GATING_B);
  58                 tmp |= 0xe7;
  59                 tmp &= ~0xe70000;
  60                 WREG32(VCE_CLOCK_GATING_B, tmp);
  61
  62                 tmp = RREG32(VCE_UENC_CLOCK_GATING);
  63                 tmp |= 0x1fe000;
  64                 tmp &= ~0xff000000;
  65                 WREG32(VCE_UENC_CLOCK_GATING, tmp);
  66
  67                 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
  68                 tmp |= 0x3fc;
  69                 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
  70         }
  71 }
  72
  73 static void vce_v2_0_set_dyn_cg(struct radeon_device *rdev, bool gated)
  74 {
  75         u32 orig, tmp;
  76
  77         tmp = RREG32(VCE_CLOCK_GATING_B);
  78         tmp &= ~0x00060006;
  79         if (gated) {
  80                 tmp |= 0xe10000;
  81         } else {
  82                 tmp |= 0xe1;
  83                 tmp &= ~0xe10000;
  84         }
  85         WREG32(VCE_CLOCK_GATING_B, tmp);
  86
  87         orig = tmp = RREG32(VCE_UENC_CLOCK_GATING);
  88         tmp &= ~0x1fe000;
  89         tmp &= ~0xff000000;
  90         if (tmp != orig)
  91                 WREG32(VCE_UENC_CLOCK_GATING, tmp);
  92
  93         orig = tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
  94         tmp &= ~0x3fc;
  95         if (tmp != orig)
  96                 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
  97
  98         if (gated)
  99                 WREG32(VCE_CGTT_CLK_OVERRIDE, 0);
 100 }
 101
 102 static void vce_v2_0_disable_cg(struct radeon_device *rdev)
 103 {
 104         WREG32(VCE_CGTT_CLK_OVERRIDE, 7);
 105 }
 106
 107 void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable)
 108 {
 109         bool sw_cg = false;
 110
 111         if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_VCE_MGCG)) {
 112                 if (sw_cg)
 113                         vce_v2_0_set_sw_cg(rdev, true);
 114                 else
 115                         vce_v2_0_set_dyn_cg(rdev, true);
 116         } else {
 117                 vce_v2_0_disable_cg(rdev);
 118
 119                 if (sw_cg)
 120                         vce_v2_0_set_sw_cg(rdev, false);
 121                 else
 122                         vce_v2_0_set_dyn_cg(rdev, false);
 123         }
 124 }
 125
 126 static void vce_v2_0_init_cg(struct radeon_device *rdev)
 127 {
 128         u32 tmp;
 129
 130         tmp = RREG32(VCE_CLOCK_GATING_A);
 131         tmp &= ~(CGC_CLK_GATE_DLY_TIMER_MASK | CGC_CLK_GATER_OFF_DLY_TIMER_MASK);
 132         tmp |= (CGC_CLK_GATE_DLY_TIMER(0) | CGC_CLK_GATER_OFF_DLY_TIMER(4));
 133         tmp |= CGC_UENC_WAIT_AWAKE;
 134         WREG32(VCE_CLOCK_GATING_A, tmp);
 135
 136         tmp = RREG32(VCE_UENC_CLOCK_GATING);
 137         tmp &= ~(CLOCK_ON_DELAY_MASK | CLOCK_OFF_DELAY_MASK);
 138         tmp |= (CLOCK_ON_DELAY(0) | CLOCK_OFF_DELAY(4));
 139         WREG32(VCE_UENC_CLOCK_GATING, tmp);
 140
 141         tmp = RREG32(VCE_CLOCK_GATING_B);
 142         tmp |= 0x10;
 143         tmp &= ~0x100000;
 144         WREG32(VCE_CLOCK_GATING_B, tmp);
 145 }
 146
 147 unsigned vce_v2_0_bo_size(struct radeon_device *rdev)
 148 {
 149         WARN_ON(rdev->vce_fw->datasize > VCE_V2_0_FW_SIZE);
 150         return VCE_V2_0_FW_SIZE + VCE_V2_0_STACK_SIZE + VCE_V2_0_DATA_SIZE;
 151 }
 152
 153 int vce_v2_0_resume(struct radeon_device *rdev)
 154 {
 155         uint64_t addr = rdev->vce.gpu_addr;
 156         uint32_t size;
 157
 158         WREG32_P(VCE_CLOCK_GATING_A, 0, ~(1 << 16));
 159         WREG32_P(VCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000);
 160         WREG32_P(VCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F);
 161         WREG32(VCE_CLOCK_GATING_B, 0xf7);
 162
 163         WREG32(VCE_LMI_CTRL, 0x00398000);
 164         WREG32_P(VCE_LMI_CACHE_CTRL, 0x0, ~0x1);
 165         WREG32(VCE_LMI_SWAP_CNTL, 0);
 166         WREG32(VCE_LMI_SWAP_CNTL1, 0);
 167         WREG32(VCE_LMI_VM_CTRL, 0);
 168
 169         WREG32(VCE_LMI_VCPU_CACHE_40BIT_BAR, addr >> 8);
 170
 171         addr &= 0xff;
 172         size = VCE_V2_0_FW_SIZE;
 173         WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff);
 174         WREG32(VCE_VCPU_CACHE_SIZE0, size);
 175
 176         addr += size;
 177         size = VCE_V2_0_STACK_SIZE;
 178         WREG32(VCE_VCPU_CACHE_OFFSET1, addr & 0x7fffffff);
 179         WREG32(VCE_VCPU_CACHE_SIZE1, size);
 180
 181         addr += size;
 182         size = VCE_V2_0_DATA_SIZE;
 183         WREG32(VCE_VCPU_CACHE_OFFSET2, addr & 0x7fffffff);
 184         WREG32(VCE_VCPU_CACHE_SIZE2, size);
 185
 186         WREG32_P(VCE_LMI_CTRL2, 0x0, ~0x100);
 187
 188         WREG32_P(VCE_SYS_INT_EN, VCE_SYS_INT_TRAP_INTERRUPT_EN,
 189                  ~VCE_SYS_INT_TRAP_INTERRUPT_EN);
 190
 191         vce_v2_0_init_cg(rdev);
 192
 193         return 0;
 194 }