On 29/11/2024 16:25, Konrad Dybcio wrote:
On 28.11.2024 11:25 AM, Neil Armstrong wrote:Now all the DDR bandwidth voting via the GPU Management Unit (GMU) is in place, declare the Bus Control Modules (BCMs) and the corresponding parameters in the GPU info struct and add the GMU_BW_VOTE feature bit to enable it. Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx> --- drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c index 0c560e84ad5a53bb4e8a49ba4e153ce9cf33f7ae..edffb7737a97b268bb2986d557969e651988a344 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c @@ -1388,6 +1388,17 @@ static const struct adreno_info a7xx_gpus[] = { .pwrup_reglist = &a7xx_pwrup_reglist, .gmu_chipid = 0x7020100, .gmu_cgc_mode = 0x00020202, + .bcms = (const struct a6xx_bcm[]) { + { .name = "SH0", .buswidth = 16 }, + { .name = "MC0", .buswidth = 4 }, + { + .name = "ACV", + .fixed = true, + .perfmode = BIT(3), + .perfmode_bw = 16500000, + }, + { /* sentinel */ }, + },This is not going to fly the second there's two SoCs implementing the same GPU with a difference in bus topology. I think we could add something like drvdata to ICC nodes and use it for BCMs on icc-rpmh. Then, we could retrieve it from the interconnect path we get from the dt node. It would also reduce duplication.
I don't want to go into that, we can optimize this when adding topologies for other GPUs later, as-is this is a pointer so we can already share the same table between GPUs.
Konrad
