a / (1 << b) is equivalent to a >> b for unsigned values
Signed-off-by: Nils Wallménius nils.wallmenius@gmail.com --- drivers/gpu/drm/amd/amdgpu/ci_dpm.c | 2 +- drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 7 +------ drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c | 2 +- drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c | 2 +- drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c | 2 +- 5 files changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c index 4d50c43..b2c2f37 100644 --- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c @@ -2560,7 +2560,7 @@ static u8 ci_get_sleep_divider_id_from_clock(struct amdgpu_device *adev, return 0;
for (i = CISLAND_MAX_DEEPSLEEP_DIVIDER_ID; ; i--) { - tmp = sclk / (1 << i); + tmp = sclk >> i; if (tmp >= min || i == 0) break; } diff --git a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c index 4bc107a..bc7997b 100644 --- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c @@ -135,11 +135,6 @@ static void sumo_take_smu_control(struct amdgpu_device *adev, bool enable) #endif }
-static u32 sumo_get_sleep_divider_from_id(u32 id) -{ - return 1 << id; -} - static void sumo_construct_sclk_voltage_mapping_table(struct amdgpu_device *adev, struct sumo_sclk_voltage_mapping_table *sclk_voltage_mapping_table, ATOM_AVAILABLE_SCLK_LIST *table) @@ -2185,7 +2180,7 @@ static u8 kv_get_sleep_divider_id_from_clock(struct amdgpu_device *adev, return 0;
for (i = KV_MAX_DEEPSLEEP_DIVIDER_ID; i > 0; i--) { - temp = sclk / sumo_get_sleep_divider_from_id(i); + temp = sclk >> i; if (temp >= min) break; } diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c index 9847e20..cc4b714 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/fiji_hwmgr.c @@ -1907,7 +1907,7 @@ static uint8_t fiji_get_sleep_divider_id_from_clock(struct pp_hwmgr *hwmgr,
PP_ASSERT_WITH_CODE((clock >= min), "Engine clock can't satisfy stutter requirement!", return 0); for (i = FIJI_MAX_DEEPSLEEP_DIVIDER_ID; ; i--) { - temp = clock / (1UL << i); + temp = clock >> i;
if (temp >= min || i == 0) break; diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c index c911ab8..93768fa 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c @@ -1177,7 +1177,7 @@ static int polaris10_populate_single_graphic_level(struct pp_hwmgr *hwmgr, */ PP_ASSERT_WITH_CODE((clock >= POLARIS10_MINIMUM_ENGINE_CLOCK), "Engine clock can't satisfy stutter requirement!", return 0); for (i = POLARIS10_MAX_DEEPSLEEP_DIVIDER_ID; ; i--) { - temp = clock / (1UL << i); + temp = clock >> i;
if (temp >= POLARIS10_MINIMUM_ENGINE_CLOCK || i == 0) break; diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c index 8969f1e..13f97708 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c @@ -2426,7 +2426,7 @@ static uint8_t tonga_get_sleep_divider_id_from_clock(struct pp_hwmgr *hwmgr, "Engine clock can't satisfy stutter requirement!", return 0);
for (i = TONGA_MAX_DEEPSLEEP_DIVIDER_ID;; i--) { - temp = engine_clock / (1 << i); + temp = engine_clock >> i;
if(temp >= min || i == 0) break;