gpu: nvgpu: Move all FB programming to FB HAL

Move all programming of FB to fb_*.c files, and remove the inclusion
of FB hardware headers from other files.

TLB invalidate function took previously a pointer to VM, but the new
API takes only a PDB mem_desc, because FB does not need to know about
higher level VM.

GPC MMU is programmed from the same function as FB MMU, so added
dependency to GR hardware header to FB.

GP106 ACR was also triggering a VPR fetch, but that's not applicable
to dGPU, so removed that call.

Change-Id: I4eb69377ac3745da205907626cf60948b7c5392a
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1321516
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/fb_gm20b.c b/drivers/gpu/nvgpu/gm20b/fb_gm20b.c
index 985248b0..b50cb2d1 100644
--- a/drivers/gpu/nvgpu/gm20b/fb_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/fb_gm20b.c
@@ -22,6 +22,9 @@
 #include <nvgpu/hw/gm20b/hw_fb_gm20b.h>
 #include <nvgpu/hw/gm20b/hw_top_gm20b.h>
 #include <nvgpu/hw/gm20b/hw_gmmu_gm20b.h>
+#include <nvgpu/hw/gm20b/hw_gr_gm20b.h>
+
+#define VPR_INFO_FETCH_WAIT     (5)
 
 static void fb_gm20b_init_fs_state(struct gk20a *g)
 {
@@ -140,15 +143,84 @@ static void gm20b_fb_dump_vpr_wpr_info(struct gk20a *g)
 
 }
 
+static int gm20b_fb_vpr_info_fetch_wait(struct gk20a *g,
+                                            unsigned int msec)
+{
+        struct nvgpu_timeout timeout;
+
+        nvgpu_timeout_init(g, &timeout, msec, NVGPU_TIMER_CPU_TIMER);
+
+        do {
+                u32 val;
+
+                val = gk20a_readl(g, fb_mmu_vpr_info_r());
+                if (fb_mmu_vpr_info_fetch_v(val) ==
+                    fb_mmu_vpr_info_fetch_false_v())
+                        return 0;
+
+        } while (!nvgpu_timeout_expired(&timeout));
+
+        return -ETIMEDOUT;
+}
+
+int gm20b_fb_vpr_info_fetch(struct gk20a *g)
+{
+        if (gm20b_fb_vpr_info_fetch_wait(g, VPR_INFO_FETCH_WAIT)) {
+                return -ETIME;
+        }
+
+        gk20a_writel(g, fb_mmu_vpr_info_r(),
+                        fb_mmu_vpr_info_fetch_true_v());
+
+        return gm20b_fb_vpr_info_fetch_wait(g, VPR_INFO_FETCH_WAIT);
+}
+
+static bool gm20b_fb_debug_mode_enabled(struct gk20a *g)
+{
+        u32 debug_ctrl = gk20a_readl(g, gr_gpcs_pri_mmu_debug_ctrl_r());
+        return gr_gpcs_pri_mmu_debug_ctrl_debug_v(debug_ctrl) ==
+                gr_gpcs_pri_mmu_debug_ctrl_debug_enabled_v();
+}
+
+static void gm20b_fb_set_debug_mode(struct gk20a *g, bool enable)
+{
+        u32 reg_val, fb_debug_ctrl, gpc_debug_ctrl;
+
+        if (enable) {
+                fb_debug_ctrl = fb_mmu_debug_ctrl_debug_enabled_f();
+                gpc_debug_ctrl = gr_gpcs_pri_mmu_debug_ctrl_debug_enabled_f();
+                g->mmu_debug_ctrl = true;
+        } else {
+                fb_debug_ctrl = fb_mmu_debug_ctrl_debug_disabled_f();
+                gpc_debug_ctrl = gr_gpcs_pri_mmu_debug_ctrl_debug_disabled_f();
+                g->mmu_debug_ctrl = false;
+        }
+
+        reg_val = gk20a_readl(g, fb_mmu_debug_ctrl_r());
+        reg_val = set_field(reg_val,
+                        fb_mmu_debug_ctrl_debug_m(), fb_debug_ctrl);
+        gk20a_writel(g, fb_mmu_debug_ctrl_r(), reg_val);
+
+        reg_val = gk20a_readl(g, gr_gpcs_pri_mmu_debug_ctrl_r());
+        reg_val = set_field(reg_val,
+                        gr_gpcs_pri_mmu_debug_ctrl_debug_m(), gpc_debug_ctrl);
+        gk20a_writel(g, gr_gpcs_pri_mmu_debug_ctrl_r(), reg_val);
+}
+
 void gm20b_init_fb(struct gpu_ops *gops)
 {
         gops->fb.reset = fb_gk20a_reset;
+        gops->fb.init_hw = gk20a_fb_init_hw;
         gops->fb.init_fs_state = fb_gm20b_init_fs_state;
         gops->fb.set_mmu_page_size = gm20b_fb_set_mmu_page_size;
         gops->fb.set_use_full_comp_tag_line = gm20b_fb_set_use_full_comp_tag_line;
         gops->fb.compression_page_size = gm20b_fb_compression_page_size;
         gops->fb.compressible_page_size = gm20b_fb_compressible_page_size;
+        gops->fb.vpr_info_fetch = gm20b_fb_vpr_info_fetch;
         gops->fb.dump_vpr_wpr_info = gm20b_fb_dump_vpr_wpr_info;
+        gops->fb.is_debug_mode_enabled = gm20b_fb_debug_mode_enabled;
+        gops->fb.set_debug_mode = gm20b_fb_set_debug_mode;
+        gops->fb.tlb_invalidate = gk20a_fb_tlb_invalidate;
         gm20b_init_uncompressed_kind_map();
         gm20b_init_kind_attr();
 }