From b97721f311c68440144a95e345955284c25b69a2 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 26 Mar 2013 19:09:18 -0400 Subject: [PATCH] drm/radeon/dpm/r7xx: properly catch errors in dpm setup We weren't properly catching errors in dpm_enable() and dpm_set_power_state(). Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rv770_dpm.c | 54 +++++++++++++++++++++--------- 1 file changed, 39 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c index 2039802e8829..0c9a495aba87 100644 --- a/drivers/gpu/drm/radeon/rv770_dpm.c +++ b/drivers/gpu/drm/radeon/rv770_dpm.c @@ -1875,6 +1875,7 @@ int rv770_dpm_enable(struct radeon_device *rdev) { struct rv7xx_power_info *pi = rv770_get_pi(rdev); struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps; + int ret; if (pi->gfx_clock_gating) rv770_restore_cgcg(rdev); @@ -1884,14 +1885,19 @@ int rv770_dpm_enable(struct radeon_device *rdev) if (pi->voltage_control) { rv770_enable_voltage_control(rdev, true); - rv770_construct_vddc_table(rdev); + ret = rv770_construct_vddc_table(rdev); + if (ret) + return ret; } if (pi->dcodt) rv770_retrieve_odt_values(rdev); - if (pi->mvdd_control) - rv770_get_mvdd_configuration(rdev); + if (pi->mvdd_control) { + ret = rv770_get_mvdd_configuration(rdev); + if (ret) + return ret; + } if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS) rv770_enable_backbias(rdev, true); @@ -1914,11 +1920,14 @@ int rv770_dpm_enable(struct radeon_device *rdev) if (pi->dynamic_pcie_gen2) rv770_enable_dynamic_pcie_gen2(rdev, true); - if (rv770_upload_firmware(rdev)) - return -EINVAL; - /* get ucode version ? */ - if (rv770_init_smc_table(rdev, boot_ps)) - return -EINVAL; + ret = rv770_upload_firmware(rdev); + if (ret) + return ret; + + ret = rv770_init_smc_table(rdev, boot_ps); + if (ret) + return ret; + rv770_program_response_times(rdev); r7xx_start_smc(rdev); @@ -1937,7 +1946,9 @@ int rv770_dpm_enable(struct radeon_device *rdev) r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) { PPSMC_Result result; - rv770_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX); + ret = rv770_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX); + if (ret) + return ret; rdev->irq.dpm_thermal = true; radeon_irq_set(rdev); result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_EnableThermalInterrupt); @@ -1994,20 +2005,33 @@ int rv770_dpm_set_power_state(struct radeon_device *rdev) struct rv7xx_power_info *pi = rv770_get_pi(rdev); struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps; struct radeon_ps *old_ps = rdev->pm.dpm.current_ps; + int ret; - rv770_restrict_performance_levels_before_switch(rdev); + ret = rv770_restrict_performance_levels_before_switch(rdev); + if (ret) + return ret; rv770_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); - rv770_halt_smc(rdev); - rv770_upload_sw_state(rdev, new_ps); + ret = rv770_halt_smc(rdev); + if (ret) + return ret; + ret = rv770_upload_sw_state(rdev, new_ps); + if (ret) + return ret; r7xx_program_memory_timing_parameters(rdev, new_ps); if (pi->dcodt) rv770_program_dcodt_before_state_switch(rdev, new_ps, old_ps); - rv770_resume_smc(rdev); - rv770_set_sw_state(rdev); + ret = rv770_resume_smc(rdev); + if (ret) + return ret; + ret = rv770_set_sw_state(rdev); + if (ret) + return ret; if (pi->dcodt) rv770_program_dcodt_after_state_switch(rdev, new_ps, old_ps); rv770_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); - rv770_unrestrict_performance_levels_after_switch(rdev); + ret = rv770_unrestrict_performance_levels_after_switch(rdev); + if (ret) + return ret; return 0; } -- 2.34.1