diff options
| author | Lang Yu <lang.yu@amd.com> | 2021-09-08 13:34:26 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-09-16 09:56:23 -0400 |
| commit | 8f48ba303dfb15dc354e95a3ade59dea4614123a (patch) | |
| tree | fc5f2c77923a69972eae1f2efe35dc30ae3cc6ab /drivers/gpu/drm/amd/pm/swsmu/smu13 | |
| parent | 2a54d110bd4393fe412ef2c9c2d05fcd92785d1a (diff) | |
drm/amdgpu: fix sysfs_emit/sysfs_emit_at warnings(v2)
sysfs_emit and sysfs_emit_at requrie a page boundary
aligned buf address. Make them happy!
v2: use an inline function.
Warning Log:
[ 492.545174] invalid sysfs_emit_at: buf:00000000f19bdfde at:0
[ 492.546416] WARNING: CPU: 7 PID: 1304 at fs/sysfs/file.c:765 sysfs_emit_at+0x4a/0xa0
[ 492.654805] Call Trace:
[ 492.655353] ? smu_cmn_get_metrics_table+0x40/0x50 [amdgpu]
[ 492.656780] vangogh_print_clk_levels+0x369/0x410 [amdgpu]
[ 492.658245] vangogh_common_print_clk_levels+0x77/0x80 [amdgpu]
[ 492.659733] ? preempt_schedule_common+0x18/0x30
[ 492.660713] smu_print_ppclk_levels+0x65/0x90 [amdgpu]
[ 492.662107] amdgpu_get_pp_od_clk_voltage+0x13d/0x190 [amdgpu]
[ 492.663620] dev_attr_show+0x1d/0x40
Signed-off-by: Lang Yu <lang.yu@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu13')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c | 6 |
2 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c index ab652028e003..5019903db492 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c @@ -733,15 +733,19 @@ static int aldebaran_print_clk_levels(struct smu_context *smu, uint32_t freq_values[3] = {0}; uint32_t min_clk, max_clk; - if (amdgpu_ras_intr_triggered()) - return sysfs_emit(buf, "unavailable\n"); + smu_cmn_get_sysfs_buf(&buf, &size); + + if (amdgpu_ras_intr_triggered()) { + size += sysfs_emit_at(buf, size, "unavailable\n"); + return size; + } dpm_context = smu_dpm->dpm_context; switch (type) { case SMU_OD_SCLK: - size = sysfs_emit(buf, "%s:\n", "GFXCLK"); + size += sysfs_emit_at(buf, size, "%s:\n", "GFXCLK"); fallthrough; case SMU_SCLK: ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_GFXCLK, &now); @@ -795,7 +799,7 @@ static int aldebaran_print_clk_levels(struct smu_context *smu, break; case SMU_OD_MCLK: - size = sysfs_emit(buf, "%s:\n", "MCLK"); + size += sysfs_emit_at(buf, size, "%s:\n", "MCLK"); fallthrough; case SMU_MCLK: ret = aldebaran_get_current_clk_freq_by_table(smu, SMU_UCLK, &now); diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c index 627ba2eec7fd..a403657151ba 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/yellow_carp_ppt.c @@ -1052,16 +1052,18 @@ static int yellow_carp_print_clk_levels(struct smu_context *smu, int i, size = 0, ret = 0; uint32_t cur_value = 0, value = 0, count = 0; + smu_cmn_get_sysfs_buf(&buf, &size); + switch (clk_type) { case SMU_OD_SCLK: - size = sysfs_emit(buf, "%s:\n", "OD_SCLK"); + size += sysfs_emit_at(buf, size, "%s:\n", "OD_SCLK"); size += sysfs_emit_at(buf, size, "0: %10uMhz\n", (smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq); size += sysfs_emit_at(buf, size, "1: %10uMhz\n", (smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq); break; case SMU_OD_RANGE: - size = sysfs_emit(buf, "%s:\n", "OD_RANGE"); + size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE"); size += sysfs_emit_at(buf, size, "SCLK: %7uMhz %10uMhz\n", smu->gfx_default_hard_min_freq, smu->gfx_default_soft_max_freq); break; |