[Nouveau] [PATCH v3 9/9] perf: change pcie speed on pstate change

[Karol Herbst]

v2: remove error and only set link for pcie devices

Signed-off-by: Karol Herbst <nouv...@karolherbst.de>
---
 drm/nouveau/nvkm/subdev/clk/base.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drm/nouveau/nvkm/subdev/clk/base.c 
b/drm/nouveau/nvkm/subdev/clk/base.c
index 7ae4f26..137e06f 100644
--- a/drm/nouveau/nvkm/subdev/clk/base.c
+++ b/drm/nouveau/nvkm/subdev/clk/base.c
@@ -176,6 +176,7 @@ nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei)
 {
        struct nvkm_subdev *subdev = &clk->subdev;
        struct nvkm_ram *ram = subdev->device->fb->ram;
+       struct nvkm_pci *pci = subdev->device->pci;
        struct nvkm_pstate *pstate;
        int ret, idx = 0;
 
@@ -187,6 +188,9 @@ nvkm_pstate_prog(struct nvkm_clk *clk, int pstatei)
        nvkm_debug(subdev, "setting performance state %d\n", pstatei);
        clk->pstate = pstatei;
 
+       if (pci && pci_is_pcie(pci->pdev))
+               nvkm_pcie_set_link(pci, pstate->pcie_speed, pstate->pcie_width);
+
        if (ram && ram->func->calc) {
                int khz = pstate->base.domain[nv_clk_src_mem];
                do {
-- 
2.6.1

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