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drm/amd/powerplay: correct arcturus current clock level calculation 

There may be 1Mhz delta between target and actual frequency. That
should be taken into consideration for current level check.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-07-23 20:28:14 +08:00 committed by Alex Deucher
parent 60d435b73d
commit 1f23cadbe0
1 changed files with 27 additions and 8 deletions
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35
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -51,6 +51,9 @@
#define SMU_FEATURES_HIGH_MASK 0xFFFFFFFF00000000
#define SMU_FEATURES_HIGH_SHIFT 32
/* possible frequency drift (1Mhz) */
#define EPSILON 1
static struct smu_11_0_cmn2aisc_mapping arcturus_message_map[SMU_MSG_MAX_COUNT] = {
MSG_MAP(TestMessage, PPSMC_MSG_TestMessage),
MSG_MAP(GetSmuVersion, PPSMC_MSG_GetSmuVersion),
@ -565,6 +568,12 @@ static int arcturus_get_clk_table(struct smu_context *smu,
return 0;
}
static int arcturus_freqs_in_same_level(int32_t frequency1,
int32_t frequency2)
{
return (abs(frequency1 - frequency2) <= EPSILON);
}
static int arcturus_print_clk_levels(struct smu_context *smu,
enum smu_clk_type type, char *buf)
{
@ -595,8 +604,9 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
for (i = 0; i < clocks.num_levels; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n", i,
clocks.data[i].clocks_in_khz / 1000,
(clocks.data[i].clocks_in_khz == now * 10)
? "*" : "");
arcturus_freqs_in_same_level(
clocks.data[i].clocks_in_khz / 1000,
now / 100) ? "*" : "");
break;
case SMU_MCLK:
@ -616,8 +626,9 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
for (i = 0; i < clocks.num_levels; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n",
i, clocks.data[i].clocks_in_khz / 1000,
(clocks.data[i].clocks_in_khz == now * 10)
? "*" : "");
arcturus_freqs_in_same_level(
clocks.data[i].clocks_in_khz / 1000,
now / 100) ? "*" : "");
break;
case SMU_SOCCLK:
@ -637,8 +648,9 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
for (i = 0; i < clocks.num_levels; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n",
i, clocks.data[i].clocks_in_khz / 1000,
(clocks.data[i].clocks_in_khz == now * 10)
? "*" : "");
arcturus_freqs_in_same_level(
clocks.data[i].clocks_in_khz / 1000,
now / 100) ? "*" : "");
break;
case SMU_FCLK:
@ -649,11 +661,18 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
}
single_dpm_table = &(dpm_table->fclk_table);
ret = arcturus_get_clk_table(smu, &clocks, single_dpm_table);
if (ret) {
pr_err("Attempt to get fclk levels Failed!");
return ret;
}
for (i = 0; i < single_dpm_table->count; i++)
size += sprintf(buf + size, "%d: %uMhz %s\n",
i, single_dpm_table->dpm_levels[i].value,
(single_dpm_table->dpm_levels[i].value == now / 100)
? "*" : "");
arcturus_freqs_in_same_level(
clocks.data[i].clocks_in_khz / 1000,
now / 100) ? "*" : "");
break;
default: