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linux/drivers/gpu/drm/amd/amdgpu/imu_v12_0.c
Nathan Chancellor fc647f6c51 drm/amdgpu: Initialize data to NULL in imu_v12_0_program_rlc_ram() 
commit c90f2e1172 upstream.

After a recent change in clang to expose uninitialized warnings from
const variables and pointers [1], there is a warning in
imu_v12_0_program_rlc_ram() because data is passed uninitialized to
program_imu_rlc_ram():

  drivers/gpu/drm/amd/amdgpu/imu_v12_0.c:374:30: error: variable 'data' is uninitialized when used here [-Werror,-Wuninitialized]
    374 |                         program_imu_rlc_ram(adev, data, (const u32)size);
        |                                                   ^~~~

As this warning happens early in clang's frontend, it does not realize
that due to the assignment of r to -EINVAL, program_imu_rlc_ram() is
never actually called, and even if it were, data would not be
dereferenced because size is 0.

Just initialize data to NULL to silence the warning, as the commit that
added program_imu_rlc_ram() mentioned it would eventually be used over
the old method, at which point data can be properly initialized and
used.

Cc: stable@vger.kernel.org
Closes: https://github.com/ClangBuiltLinux/linux/issues/2107
Fixes: 56159fffaa ("drm/amdgpu: use new method to program rlc ram")
Link: 2464313eef [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:31:02 +02:00

401 lines
17 KiB
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/*
* Copyright 2023 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <linux/firmware.h>
#include "amdgpu.h"
#include "amdgpu_imu.h"
#include "amdgpu_dpm.h"
#include "imu_v12_0.h"
#include "gc/gc_12_0_0_offset.h"
#include "gc/gc_12_0_0_sh_mask.h"
#include "mmhub/mmhub_4_1_0_offset.h"
MODULE_FIRMWARE("amdgpu/gc_12_0_0_imu.bin");
MODULE_FIRMWARE("amdgpu/gc_12_0_1_imu.bin");
#define TRANSFER_RAM_MASK 0x001c0000
static int imu_v12_0_init_microcode(struct amdgpu_device *adev)
{
char ucode_prefix[15];
int err;
const struct imu_firmware_header_v1_0 *imu_hdr;
struct amdgpu_firmware_info *info = NULL;
DRM_DEBUG("\n");
amdgpu_ucode_ip_version_decode(adev, GC_HWIP, ucode_prefix, sizeof(ucode_prefix));
err = amdgpu_ucode_request(adev, &adev->gfx.imu_fw, "amdgpu/%s_imu.bin", ucode_prefix);
if (err)
goto out;
imu_hdr = (const struct imu_firmware_header_v1_0 *)adev->gfx.imu_fw->data;
adev->gfx.imu_fw_version = le32_to_cpu(imu_hdr->header.ucode_version);
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
info = &adev->firmware.ucode[AMDGPU_UCODE_ID_IMU_I];
info->ucode_id = AMDGPU_UCODE_ID_IMU_I;
info->fw = adev->gfx.imu_fw;
adev->firmware.fw_size +=
ALIGN(le32_to_cpu(imu_hdr->imu_iram_ucode_size_bytes), PAGE_SIZE);
info = &adev->firmware.ucode[AMDGPU_UCODE_ID_IMU_D];
info->ucode_id = AMDGPU_UCODE_ID_IMU_D;
info->fw = adev->gfx.imu_fw;
adev->firmware.fw_size +=
ALIGN(le32_to_cpu(imu_hdr->imu_dram_ucode_size_bytes), PAGE_SIZE);
}
out:
if (err) {
dev_err(adev->dev,
"gfx12: Failed to load firmware \"%s_imu.bin\"\n",
ucode_prefix);
amdgpu_ucode_release(&adev->gfx.imu_fw);
}
return err;
}
static int imu_v12_0_load_microcode(struct amdgpu_device *adev)
{
const struct imu_firmware_header_v1_0 *hdr;
const __le32 *fw_data;
unsigned i, fw_size;
if (!adev->gfx.imu_fw)
return -EINVAL;
hdr = (const struct imu_firmware_header_v1_0 *)adev->gfx.imu_fw->data;
fw_data = (const __le32 *)(adev->gfx.imu_fw->data +
le32_to_cpu(hdr->header.ucode_array_offset_bytes));
fw_size = le32_to_cpu(hdr->imu_iram_ucode_size_bytes) / 4;
WREG32_SOC15(GC, 0, regGFX_IMU_I_RAM_ADDR, 0);
for (i = 0; i < fw_size; i++)
WREG32_SOC15(GC, 0, regGFX_IMU_I_RAM_DATA, le32_to_cpup(fw_data++));
WREG32_SOC15(GC, 0, regGFX_IMU_I_RAM_ADDR, adev->gfx.imu_fw_version);
fw_data = (const __le32 *)(adev->gfx.imu_fw->data +
le32_to_cpu(hdr->header.ucode_array_offset_bytes) +
le32_to_cpu(hdr->imu_iram_ucode_size_bytes));
fw_size = le32_to_cpu(hdr->imu_dram_ucode_size_bytes) / 4;
WREG32_SOC15(GC, 0, regGFX_IMU_D_RAM_ADDR, 0);
for (i = 0; i < fw_size; i++)
WREG32_SOC15(GC, 0, regGFX_IMU_D_RAM_DATA, le32_to_cpup(fw_data++));
WREG32_SOC15(GC, 0, regGFX_IMU_D_RAM_ADDR, adev->gfx.imu_fw_version);
return 0;
}
static int imu_v12_0_wait_for_reset_status(struct amdgpu_device *adev)
{
u32 imu_reg_val = 0;
int i;
for (i = 0; i < adev->usec_timeout; i++) {
imu_reg_val = RREG32_SOC15(GC, 0, regGFX_IMU_GFX_RESET_CTRL);
if ((imu_reg_val & 0x1f) == 0x1f)
break;
udelay(1);
}
if (i >= adev->usec_timeout) {
dev_err(adev->dev, "init imu: IMU start timeout\n");
return -ETIMEDOUT;
}
return 0;
}
static void imu_v12_0_setup(struct amdgpu_device *adev)
{
u32 imu_reg_val;
WREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_ACCESS_CTRL0, 0xffffff);
WREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_ACCESS_CTRL1, 0xffff);
if (adev->gfx.imu.mode == DEBUG_MODE) {
imu_reg_val = RREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_16);
imu_reg_val |= 0x1;
WREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_16, imu_reg_val);
imu_reg_val = RREG32_SOC15(GC, 0, regGFX_IMU_SCRATCH_10);
imu_reg_val |= 0x20010007;
WREG32_SOC15(GC, 0, regGFX_IMU_SCRATCH_10, imu_reg_val);
}
}
static int imu_v12_0_start(struct amdgpu_device *adev)
{
u32 imu_reg_val;
imu_reg_val = RREG32_SOC15(GC, 0, regGFX_IMU_CORE_CTRL);
imu_reg_val &= 0xfffffffe;
WREG32_SOC15(GC, 0, regGFX_IMU_CORE_CTRL, imu_reg_val);
if (adev->flags & AMD_IS_APU)
amdgpu_dpm_set_gfx_power_up_by_imu(adev);
return imu_v12_0_wait_for_reset_status(adev);
}
static const struct imu_rlc_ram_golden imu_rlc_ram_golden_12_0_1[] = {
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regCH_PIPE_STEER, 0x1e4, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL1X_PIPE_STEER, 0x1e4, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL1_PIPE_STEER, 0x1e4, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL2_PIPE_STEER_0, 0x13571357, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL2_PIPE_STEER_1, 0x64206420, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL2_PIPE_STEER_2, 0x2460246, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL2_PIPE_STEER_3, 0x75317531, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGL2C_CTRL3, 0xc0d41183, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regSDMA0_CHICKEN_BITS, 0x507d1c0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regSDMA1_CHICKEN_BITS, 0x507d1c0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regCP_RB_WPTR_POLL_CNTL, 0x600100, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_CREDITS, 0x3f7fff, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_CREDITS, 0x3f7ebf, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_TAG_RESERVE0, 0x2e00000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_TAG_RESERVE1, 0x1a078, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_TAG_RESERVE2, 0x0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_TAG_RESERVE0, 0x0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_TAG_RESERVE1, 0x12030, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_TAG_RESERVE2, 0x0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_VCC_RESERVE0, 0x19041000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_VCC_RESERVE1, 0x80000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_VCC_RESERVE0, 0x1e080000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_VCC_RESERVE1, 0x80000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_PRIORITY, 0x880, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_PRIORITY, 0x8880, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_ARB_FINAL, 0x17, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_ARB_FINAL, 0x77, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_SDP_ENABLE, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_SDP_ENABLE, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_PROTECTION_FAULT_CNTL2, 0x20000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_APT_CNTL, 0x0c, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_CACHEABLE_DRAM_ADDRESS_END, 0xfffff, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_CPWD_MISC, 0x0091, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGC_EA_SE_MISC, 0x0091, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0xe0000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCR_GENERAL_CNTL, 0x00008500, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regPA_CL_ENHANCE, 0x00880007, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regTD_CNTL, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regRMI_GENERAL_CNTL, 0x01e00000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regRMI_GENERAL_CNTL, 0x01e00000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0x00000100, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regRMI_GENERAL_CNTL, 0x01e00000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0x00000101, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regRMI_GENERAL_CNTL, 0x01e00000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBM_GFX_INDEX, 0xe0000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGB_ADDR_CONFIG, 0x08200545, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGRBMH_CP_PERFMON_CNTL, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regCB_PERFCOUNTER0_SELECT1, 0x000fffff, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regCP_DEBUG_2, 0x00020000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regCP_CPC_DEBUG, 0x00500010, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL, 0x00000500, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_LOCAL_FB_ADDRESS_START, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_LOCAL_FB_ADDRESS_END, 0x0000000f, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_FB_LOCATION_BASE, 0x00006000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_FB_LOCATION_TOP, 0x0000600f, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_CONTEXT0_CNTL, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_CONTEXT1_CNTL, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_NB_TOP_OF_DRAM_SLOT1, 0xff800000, 0xe0000000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_NB_LOWER_TOP_OF_DRAM2, 0x00000001, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_NB_UPPER_TOP_OF_DRAM2, 0x0000ffff, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_AGP_BASE, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_AGP_BOT, 0x00000002, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_AGP_TOP, 0x00000000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_PROTECTION_FAULT_CNTL, 0x00001ffc, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL, 0x00000551, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_CNTL, 0x00080603, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_CNTL2, 0x00000003, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_CNTL3, 0x00100003, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCVM_L2_CNTL5, 0x00003fe0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_LOW_ADDR, 0x0003d000, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 0x0003d7ff, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 0, 0x1c0000),
IMU_RLC_RAM_GOLDEN_VALUE(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 0, 0x1c0000)
};
static void program_imu_rlc_ram_old(struct amdgpu_device *adev,
const struct imu_rlc_ram_golden *regs,
const u32 array_size)
{
const struct imu_rlc_ram_golden *entry;
u32 reg, data;
int i;
for (i = 0; i < array_size; ++i) {
entry = &regs[i];
reg = adev->reg_offset[entry->hwip][entry->instance][entry->segment] + entry->reg;
reg |= entry->addr_mask;
data = entry->data;
if (entry->reg == regGCMC_VM_AGP_BASE)
data = 0x00ffffff;
else if (entry->reg == regGCMC_VM_AGP_TOP)
data = 0x0;
else if (entry->reg == regGCMC_VM_FB_LOCATION_BASE)
data = adev->gmc.vram_start >> 24;
else if (entry->reg == regGCMC_VM_FB_LOCATION_TOP)
data = adev->gmc.vram_end >> 24;
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_HIGH, 0);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_LOW, reg);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_DATA, data);
}
}
static u32 imu_v12_0_grbm_gfx_index_remap(struct amdgpu_device *adev,
u32 data, bool high)
{
u32 val, inst_index;
inst_index = REG_GET_FIELD(data, GRBM_GFX_INDEX, INSTANCE_INDEX);
if (high)
val = inst_index >> 5;
else
val = REG_GET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES) << 18 |
REG_GET_FIELD(data, GRBM_GFX_INDEX, SA_BROADCAST_WRITES) << 19 |
REG_GET_FIELD(data, GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES) << 20 |
REG_GET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX) << 21 |
REG_GET_FIELD(data, GRBM_GFX_INDEX, SA_INDEX) << 25 |
(inst_index & 0x1f);
return val;
}
static u32 imu_v12_init_gfxhub_settings(struct amdgpu_device *adev,
u32 reg, u32 data)
{
if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_FB_LOCATION_BASE))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_BASE);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_FB_LOCATION_TOP))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_TOP);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_FB_OFFSET))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_OFFSET);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_AGP_BASE))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_AGP_BOT))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_AGP_TOP))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_SYSTEM_APERTURE_LOW_ADDR))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_LOCAL_FB_ADDRESS_START))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_LOCAL_FB_ADDRESS_START);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_LOCAL_FB_ADDRESS_END))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_LOCAL_FB_ADDRESS_END);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_LOCAL_SYSMEM_ADDRESS_START))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_LOCAL_SYSMEM_ADDRESS_START);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_LOCAL_SYSMEM_ADDRESS_END))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_LOCAL_SYSMEM_ADDRESS_END);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB);
else if (reg == SOC15_REG_OFFSET(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB))
return RREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB);
else
return data;
}
static void program_imu_rlc_ram(struct amdgpu_device *adev,
const u32 *regs,
const u32 array_size)
{
u32 reg, data, val_h = 0, val_l = TRANSFER_RAM_MASK;
int i;
if (array_size % 3)
return;
for (i = 0; i < array_size; i += 3) {
reg = regs[i + 0];
data = regs[i + 2];
data = imu_v12_init_gfxhub_settings(adev, reg, data);
if (reg == SOC15_REG_OFFSET(GC, 0, regGRBM_GFX_INDEX)) {
val_l = imu_v12_0_grbm_gfx_index_remap(adev, data, false);
val_h = imu_v12_0_grbm_gfx_index_remap(adev, data, true);
} else {
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_HIGH, val_h);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_LOW, reg | val_l);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_DATA, data);
}
}
}
static void imu_v12_0_program_rlc_ram(struct amdgpu_device *adev)
{
u32 reg_data, size = 0;
const u32 *data = NULL;
int r = -EINVAL;
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_INDEX, 0x2);
switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(12, 0, 0):
case IP_VERSION(12, 0, 1):
if (!r)
program_imu_rlc_ram(adev, data, (const u32)size);
else
program_imu_rlc_ram_old(adev, imu_rlc_ram_golden_12_0_1,
(const u32)ARRAY_SIZE(imu_rlc_ram_golden_12_0_1));
break;
default:
BUG();
break;
}
//Indicate the latest entry
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_HIGH, 0);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_ADDR_LOW, 0);
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_DATA, 0);
reg_data = RREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_INDEX);
reg_data |= GFX_IMU_RLC_RAM_INDEX__RAM_VALID_MASK;
WREG32_SOC15(GC, 0, regGFX_IMU_RLC_RAM_INDEX, reg_data);
}
const struct amdgpu_imu_funcs gfx_v12_0_imu_funcs = {
.init_microcode = imu_v12_0_init_microcode,
.load_microcode = imu_v12_0_load_microcode,
.setup_imu = imu_v12_0_setup,
.start_imu = imu_v12_0_start,
.program_rlc_ram = imu_v12_0_program_rlc_ram,
.wait_for_reset_status = imu_v12_0_wait_for_reset_status,
};
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