gpu: nvgpu: remove PMC_ENABLE and PMC_ELPG_ENABLE accesses

We don't need to enable l2/fb/hub/xbar from PMC_ENABLE or PMC_ELPG_ENABLE
explicitly from nvgpu

Remove the redundant code which accesses those registers

Jira NVGPUT-51

Change-Id: I423d3bfc2f63460fc168815b5b5104962e3e72ef
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1751445
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 0 insertions, 21 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fb_gv11b.c b/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
index bba7e66c..54f0d2d8 100644
--- a/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fb_gv11b.c
@@ -126,20 +126,6 @@ void gv11b_fb_init_cbc(struct gk20a *g, struct gr_gk20a *gr)
 
 void gv11b_fb_reset(struct gk20a *g)
 {
-        if (nvgpu_is_bpmp_running(g) && (!nvgpu_platform_is_simulation(g))) {
-                nvgpu_log(g, gpu_dbg_info, "mc_elpg_enable set by bpmp");
-        } else {
-                u32 mc_elpg_enable_val;
-
-                nvgpu_log(g, gpu_dbg_info, "enable xbar, pfb and hub");
-                mc_elpg_enable_val = mc_elpg_enable_xbar_enabled_f() |
-                                        mc_elpg_enable_pfb_enabled_f() |
-                                        mc_elpg_enable_hub_enabled_f();
-                mc_elpg_enable_val |= gk20a_readl(g, mc_elpg_enable_r());
-                gk20a_writel(g, mc_elpg_enable_r(), mc_elpg_enable_val);
-
-        }
-        /* fs hub should be out of reset by now */
         gv11b_init_nvlink_soc_credits(g);
 }
 
diff --git a/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c b/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
index 9f9ff337..96844ebd 100644
--- a/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/ltc_gv11b.c
@@ -58,13 +58,6 @@ void gv11b_ltc_init_fs_state(struct gk20a *g)
 
         nvgpu_log_info(g, "initialize gv11b l2");
 
-        g->ops.mc.reset(g, mc_enable_pfb_enabled_f() |
-                                mc_enable_l2_enabled_f());
-
-        reg = gk20a_readl(g, mc_elpg_enable_r());
-        reg |= mc_elpg_enable_l2_enabled_f();
-        gk20a_writel(g, mc_elpg_enable_r(), reg);
-
         g->max_ltc_count = gk20a_readl(g, top_num_ltcs_r());
         g->ltc_count = gk20a_readl(g, pri_ringmaster_enum_ltc_r());
         nvgpu_log_info(g, "%u ltcs out of %u", g->ltc_count, g->max_ltc_count);