a / (1 << b) is equivalent to a >> b for unsigned values
Signed-off-by: Nils Wallménius <nils.wallmenius at 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;
--
2.8.1
