diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2018-06-18 18:49:07 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-05 16:39:55 -0500 |
| commit | 6eb9d6030479c5e079a1374941b77ac205b10912 (patch) | |
| tree | 537b5c9dc9b1a62dccc1a9c5e23427610e4da695 /drivers | |
| parent | 23ec3d1479fd79658cd52c47618d8ddd2f32550b (diff) | |
| download | lwn-6eb9d6030479c5e079a1374941b77ac205b10912.tar.gz lwn-6eb9d6030479c5e079a1374941b77ac205b10912.zip | |
drm/amd/pp: Memory Latency is always 25us on Vega10
For HBM, 25us latency is enough for memory clock switch.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 23 |
1 files changed, 2 insertions, 21 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c index 37c2e5c15d62..7fdd9ede96c7 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c @@ -55,12 +55,6 @@ static const uint32_t channel_number[] = {1, 2, 0, 4, 0, 8, 0, 16, 2}; -#define MEM_FREQ_LOW_LATENCY 25000 -#define MEM_FREQ_HIGH_LATENCY 80000 -#define MEM_LATENCY_HIGH 245 -#define MEM_LATENCY_LOW 35 -#define MEM_LATENCY_ERR 0xFFFF - #define mmDF_CS_AON0_DramBaseAddress0 0x0044 #define mmDF_CS_AON0_DramBaseAddress0_BASE_IDX 0 @@ -4075,18 +4069,6 @@ static void vega10_get_sclks(struct pp_hwmgr *hwmgr, } -static uint32_t vega10_get_mem_latency(struct pp_hwmgr *hwmgr, - uint32_t clock) -{ - if (clock >= MEM_FREQ_LOW_LATENCY && - clock < MEM_FREQ_HIGH_LATENCY) - return MEM_LATENCY_HIGH; - else if (clock >= MEM_FREQ_HIGH_LATENCY) - return MEM_LATENCY_LOW; - else - return MEM_LATENCY_ERR; -} - static void vega10_get_memclocks(struct pp_hwmgr *hwmgr, struct pp_clock_levels_with_latency *clocks) { @@ -4100,14 +4082,13 @@ static void vega10_get_memclocks(struct pp_hwmgr *hwmgr, for (i = 0; i < dep_table->count; i++) { if (dep_table->entries[i].clk) { + clocks->data[j].clocks_in_khz = dep_table->entries[i].clk * 10; data->mclk_latency_table.entries[j].frequency = dep_table->entries[i].clk; clocks->data[j].latency_in_us = - data->mclk_latency_table.entries[j].latency = - vega10_get_mem_latency(hwmgr, - dep_table->entries[i].clk); + data->mclk_latency_table.entries[j].latency = 25; j++; } } |