diff options
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a')
-rw-r--r-- | drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c index fd31ab89..5d428afa 100644 --- a/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c +++ b/drivers/gpu/nvgpu/gk20a/dbg_gpu_gk20a.c | |||
@@ -36,6 +36,27 @@ | |||
36 | #include <nvgpu/hw/gk20a/hw_therm_gk20a.h> | 36 | #include <nvgpu/hw/gk20a/hw_therm_gk20a.h> |
37 | #include <nvgpu/hw/gk20a/hw_gr_gk20a.h> | 37 | #include <nvgpu/hw/gk20a/hw_gr_gk20a.h> |
38 | #include <nvgpu/hw/gk20a/hw_perf_gk20a.h> | 38 | #include <nvgpu/hw/gk20a/hw_perf_gk20a.h> |
39 | #include <nvgpu/hw/gk20a/hw_mc_gk20a.h> | ||
40 | |||
41 | static void gk20a_perfbuf_reset_streaming(struct gk20a *g) | ||
42 | { | ||
43 | u32 engine_status; | ||
44 | u32 num_unread_bytes; | ||
45 | |||
46 | g->ops.mc.reset(g, mc_enable_perfmon_enabled_f()); | ||
47 | |||
48 | engine_status = gk20a_readl(g, perf_pmasys_enginestatus_r()); | ||
49 | WARN_ON(0u == | ||
50 | (engine_status & perf_pmasys_enginestatus_rbufempty_empty_f())); | ||
51 | |||
52 | gk20a_writel(g, perf_pmasys_control_r(), | ||
53 | perf_pmasys_control_membuf_clear_status_doit_f()); | ||
54 | |||
55 | num_unread_bytes = gk20a_readl(g, perf_pmasys_mem_bytes_r()); | ||
56 | if (num_unread_bytes != 0u) { | ||
57 | gk20a_writel(g, perf_pmasys_mem_bump_r(), num_unread_bytes); | ||
58 | } | ||
59 | } | ||
39 | 60 | ||
40 | /* | 61 | /* |
41 | * API to get first channel from the list of all channels | 62 | * API to get first channel from the list of all channels |
@@ -316,6 +337,8 @@ int gk20a_perfbuf_enable_locked(struct gk20a *g, u64 offset, u32 size) | |||
316 | 337 | ||
317 | g->ops.mm.init_inst_block(&mm->perfbuf.inst_block, mm->perfbuf.vm, 0); | 338 | g->ops.mm.init_inst_block(&mm->perfbuf.inst_block, mm->perfbuf.vm, 0); |
318 | 339 | ||
340 | gk20a_perfbuf_reset_streaming(g); | ||
341 | |||
319 | virt_addr_lo = u64_lo32(offset); | 342 | virt_addr_lo = u64_lo32(offset); |
320 | virt_addr_hi = u64_hi32(offset); | 343 | virt_addr_hi = u64_hi32(offset); |
321 | 344 | ||
@@ -349,6 +372,8 @@ int gk20a_perfbuf_disable_locked(struct gk20a *g) | |||
349 | return err; | 372 | return err; |
350 | } | 373 | } |
351 | 374 | ||
375 | gk20a_perfbuf_reset_streaming(g); | ||
376 | |||
352 | gk20a_writel(g, perf_pmasys_outbase_r(), 0); | 377 | gk20a_writel(g, perf_pmasys_outbase_r(), 0); |
353 | gk20a_writel(g, perf_pmasys_outbaseupper_r(), | 378 | gk20a_writel(g, perf_pmasys_outbaseupper_r(), |
354 | perf_pmasys_outbaseupper_ptr_f(0)); | 379 | perf_pmasys_outbaseupper_ptr_f(0)); |