[AMD Official Use Only - AMD Internal Distribution Only] Hi Alex, I know that G6 MCLK = 2*UCLK. May I know how did you get the data that effective_memory_clock = memory_controller_clock * 1? Thanks. -----Original Message----- From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Alex Deucher Sent: Friday, July 26, 2024 5:41 AM To: Deucher, Alexander <Alexander.Deucher@xxxxxxx> Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx Subject: Re: [PATCH] drm/amdgpu/pm: update documentation on memory clock Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding. Ping? On Thu, May 2, 2024 at 5:07 PM Alex Deucher <alexander.deucher@xxxxxxx> wrote: > > Update documentation for RDNA3 dGPUs. > > Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> > --- > drivers/gpu/drm/amd/pm/amdgpu_pm.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c > index ec9058c80647a..9ad114e695e5d 100644 > --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c > +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c > @@ -610,12 +610,18 @@ static ssize_t amdgpu_set_pp_table(struct device *dev, > * > * Clock conversion (Mhz): > * > + * Pre-RDNA3 GPUs: > + * > * HBM: effective_memory_clock = memory_controller_clock * 1 > * > * G5: effective_memory_clock = memory_controller_clock * 1 > * > * G6: effective_memory_clock = memory_controller_clock * 2 > * > + * RDNA3 GPUs: > + * > + * G6: effective_memory_clock = memory_controller_clock * 1 > + * > * DRAM data rate (MT/s): > * > * HBM: effective_memory_clock * 2 = data_rate > -- > 2.44.0 >
