diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/imu_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/imu_v11_0.c | 46 |
1 files changed, 30 insertions, 16 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/imu_v11_0.c b/drivers/gpu/drm/amd/amdgpu/imu_v11_0.c index d63d3f2b8a16..76383baa3929 100644 --- a/drivers/gpu/drm/amd/amdgpu/imu_v11_0.c +++ b/drivers/gpu/drm/amd/amdgpu/imu_v11_0.c @@ -24,6 +24,7 @@ #include <linux/firmware.h> #include "amdgpu.h" #include "amdgpu_imu.h" +#include "amdgpu_dpm.h" #include "gc/gc_11_0_0_offset.h" #include "gc/gc_11_0_0_sh_mask.h" @@ -117,6 +118,25 @@ static int imu_v11_0_load_microcode(struct amdgpu_device *adev) return 0; } +static int imu_v11_0_wait_for_reset_status(struct amdgpu_device *adev) +{ + int i, imu_reg_val = 0; + + 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_v11_0_setup(struct amdgpu_device *adev) { int imu_reg_val; @@ -125,9 +145,11 @@ static void imu_v11_0_setup(struct amdgpu_device *adev) WREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_ACCESS_CTRL0, 0xffffff); WREG32_SOC15(GC, 0, regGFX_IMU_C2PMSG_ACCESS_CTRL1, 0xffff); - 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); + 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); + } //disble imu Rtavfs, SmsRepair, DfllBTC, and ClkB imu_reg_val = RREG32_SOC15(GC, 0, regGFX_IMU_SCRATCH_10); @@ -137,26 +159,17 @@ static void imu_v11_0_setup(struct amdgpu_device *adev) static int imu_v11_0_start(struct amdgpu_device *adev) { - int imu_reg_val, i; + int imu_reg_val; //Start IMU by set GFX_IMU_CORE_CTRL.CRESET = 0 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); - 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 (adev->flags & AMD_IS_APU) + amdgpu_dpm_set_gfx_power_up_by_imu(adev); - if (i >= adev->usec_timeout) { - dev_err(adev->dev, "init imu: IMU start timeout\n"); - return -ETIMEDOUT; - } - - return 0; + return imu_v11_0_wait_for_reset_status(adev); } static const struct imu_rlc_ram_golden imu_rlc_ram_golden_11[] = @@ -364,4 +377,5 @@ const struct amdgpu_imu_funcs gfx_v11_0_imu_funcs = { .setup_imu = imu_v11_0_setup, .start_imu = imu_v11_0_start, .program_rlc_ram = imu_v11_0_program_rlc_ram, + .wait_for_reset_status = imu_v11_0_wait_for_reset_status, }; |