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drm/amd/amdgpu: Tidy up SI SMC code (v2) 

As well as merge SMC clock functions into one to reduce LOC.

v2: Fix swapped ck enable bit
bug: https://bugs.freedesktop.org/show_bug.cgi?id=97801

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-09-06 11:56:42 -04:00 committed by Alex Deucher
parent 6e9057a8f9
commit f80c738c61
3 changed files with 12 additions and 22 deletions
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6
drivers/gpu/drm/amd/amdgpu/si_dpm.c
View File

@ -3944,13 +3944,13 @@ static void si_dpm_start_smc(struct amdgpu_device *adev)
{
si_program_jump_on_start(adev);
si_start_smc(adev);
si_start_smc_clock(adev);
si_smc_clock(adev, true);
}
static void si_dpm_stop_smc(struct amdgpu_device *adev)
{
si_reset_smc(adev);
si_stop_smc_clock(adev);
si_smc_clock(adev, false);
}
static int si_process_firmware_header(struct amdgpu_device *adev)
@ -4366,7 +4366,7 @@ static int si_upload_firmware(struct amdgpu_device *adev)
struct si_power_info *si_pi = si_get_pi(adev);
si_reset_smc(adev);
si_stop_smc_clock(adev);
si_smc_clock(adev, false);
return si_load_smc_ucode(adev, si_pi->sram_end);
}

25
drivers/gpu/drm/amd/amdgpu/si_smc.c
View File

@ -84,7 +84,6 @@ int si_copy_bytes_to_smc(struct amdgpu_device *adev,
goto done;
original_data = RREG32(SMC_IND_DATA_0);
extra_shift = 8 * (4 - byte_count);
while (byte_count > 0) {
@ -94,7 +93,6 @@ int si_copy_bytes_to_smc(struct amdgpu_device *adev,
}
data <<= extra_shift;
data |= (original_data & ~((~0UL) << extra_shift));
ret = si_set_smc_sram_address(adev, addr, limit);
@ -128,8 +126,8 @@ void si_reset_smc(struct amdgpu_device *adev)
RREG32(CB_CGTT_SCLK_CTRL);
RREG32(CB_CGTT_SCLK_CTRL);
tmp = RREG32_SMC(SMC_SYSCON_RESET_CNTL);
tmp |= RST_REG;
tmp = RREG32_SMC(SMC_SYSCON_RESET_CNTL) |
RST_REG;
WREG32_SMC(SMC_SYSCON_RESET_CNTL, tmp);
}
@ -140,20 +138,14 @@ int si_program_jump_on_start(struct amdgpu_device *adev)
return si_copy_bytes_to_smc(adev, 0x0, data, 4, sizeof(data)+1);
}
void si_stop_smc_clock(struct amdgpu_device *adev)
void si_smc_clock(struct amdgpu_device *adev, bool enable)
{
u32 tmp = RREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0);
tmp |= CK_DISABLE;
WREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0, tmp);
}
void si_start_smc_clock(struct amdgpu_device *adev)
{
u32 tmp = RREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0);
tmp &= ~CK_DISABLE;
if (enable)
tmp &= ~CK_DISABLE;
else
tmp |= CK_DISABLE;
WREG32_SMC(SMC_SYSCON_CLOCK_CNTL_0, tmp);
}
@ -185,9 +177,8 @@ PPSMC_Result si_send_msg_to_smc(struct amdgpu_device *adev, PPSMC_Msg msg)
break;
udelay(1);
}
tmp = RREG32(SMC_RESP_0);
return (PPSMC_Result)tmp;
return (PPSMC_Result)RREG32(SMC_RESP_0);
}
PPSMC_Result si_wait_for_smc_inactive(struct amdgpu_device *adev)

3
drivers/gpu/drm/amd/amdgpu/sislands_smc.h
View File

@ -408,8 +408,7 @@ int si_copy_bytes_to_smc(struct amdgpu_device *adev,
void si_start_smc(struct amdgpu_device *adev);
void si_reset_smc(struct amdgpu_device *adev);
int si_program_jump_on_start(struct amdgpu_device *adev);
void si_stop_smc_clock(struct amdgpu_device *adev);
void si_start_smc_clock(struct amdgpu_device *adev);
void si_smc_clock(struct amdgpu_device *adev, bool enable);
bool si_is_smc_running(struct amdgpu_device *adev);
PPSMC_Result si_send_msg_to_smc(struct amdgpu_device *adev, PPSMC_Msg msg);
PPSMC_Result si_wait_for_smc_inactive(struct amdgpu_device *adev);