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 /* 108 * Local variable sw_cg is used for debugging purposes, in case we 109 * ran into problems with dynamic clock gating. Don't remove it. 110 */ 111 void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable) 112 { 113 bool sw_cg = false; 114 115 if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_VCE_MGCG)) { 116 if (sw_cg) 117 vce_v2_0_set_sw_cg(rdev, true); 118 else 119 vce_v2_0_set_dyn_cg(rdev, true); 120 } else { 121 vce_v2_0_disable_cg(rdev); 122 123 if (sw_cg) 124 vce_v2_0_set_sw_cg(rdev, false); 125 else 126 vce_v2_0_set_dyn_cg(rdev, false); 127 } 128 } 129 130 static void vce_v2_0_init_cg(struct radeon_device *rdev) 131 { 132 u32 tmp; 133 134 tmp = RREG32(VCE_CLOCK_GATING_A); 135 tmp &= ~(CGC_CLK_GATE_DLY_TIMER_MASK | CGC_CLK_GATER_OFF_DLY_TIMER_MASK); 136 tmp |= (CGC_CLK_GATE_DLY_TIMER(0) | CGC_CLK_GATER_OFF_DLY_TIMER(4)); 137 tmp |= CGC_UENC_WAIT_AWAKE; 138 WREG32(VCE_CLOCK_GATING_A, tmp); 139 140 tmp = RREG32(VCE_UENC_CLOCK_GATING); 141 tmp &= ~(CLOCK_ON_DELAY_MASK | CLOCK_OFF_DELAY_MASK); 142 tmp |= (CLOCK_ON_DELAY(0) | CLOCK_OFF_DELAY(4)); 143 WREG32(VCE_UENC_CLOCK_GATING, tmp); 144 145 tmp = RREG32(VCE_CLOCK_GATING_B); 146 tmp |= 0x10; 147 tmp &= ~0x100000; 148 WREG32(VCE_CLOCK_GATING_B, tmp); 149 } 150 151 unsigned vce_v2_0_bo_size(struct radeon_device *rdev) 152 { 153 WARN_ON(rdev->vce_fw->size > VCE_V2_0_FW_SIZE); 154 return VCE_V2_0_FW_SIZE + VCE_V2_0_STACK_SIZE + VCE_V2_0_DATA_SIZE; 155 } 156 157 int vce_v2_0_resume(struct radeon_device *rdev) 158 { 159 uint64_t addr = rdev->vce.gpu_addr; 160 uint32_t size; 161 162 WREG32_P(VCE_CLOCK_GATING_A, 0, ~(1 << 16)); 163 WREG32_P(VCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000); 164 WREG32_P(VCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F); 165 WREG32(VCE_CLOCK_GATING_B, 0xf7); 166 167 WREG32(VCE_LMI_CTRL, 0x00398000); 168 WREG32_P(VCE_LMI_CACHE_CTRL, 0x0, ~0x1); 169 WREG32(VCE_LMI_SWAP_CNTL, 0); 170 WREG32(VCE_LMI_SWAP_CNTL1, 0); 171 WREG32(VCE_LMI_VM_CTRL, 0); 172 173 WREG32(VCE_LMI_VCPU_CACHE_40BIT_BAR, addr >> 8); 174 175 addr &= 0xff; 176 size = VCE_V2_0_FW_SIZE; 177 WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff); 178 WREG32(VCE_VCPU_CACHE_SIZE0, size); 179 180 addr += size; 181 size = VCE_V2_0_STACK_SIZE; 182 WREG32(VCE_VCPU_CACHE_OFFSET1, addr & 0x7fffffff); 183 WREG32(VCE_VCPU_CACHE_SIZE1, size); 184 185 addr += size; 186 size = VCE_V2_0_DATA_SIZE; 187 WREG32(VCE_VCPU_CACHE_OFFSET2, addr & 0x7fffffff); 188 WREG32(VCE_VCPU_CACHE_SIZE2, size); 189 190 WREG32_P(VCE_LMI_CTRL2, 0x0, ~0x100); 191 192 WREG32_P(VCE_SYS_INT_EN, VCE_SYS_INT_TRAP_INTERRUPT_EN, 193 ~VCE_SYS_INT_TRAP_INTERRUPT_EN); 194 195 vce_v2_0_init_cg(rdev); 196 197 return 0; 198 } 199