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gpu: nvgpu: gv11b: skip mmu fault buf alloc after resume

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Skip allocating memory if required s/w set up for mmu fault
buffers is already done.

Bug 2045228

Change-Id: Ib88e8dd4f54b3f0faf7dc9edf091ec285220f7b5
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1640516
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Seema Khowala
2018-01-09 14:45:44 -08:00
committed by mobile promotions
parent 0f291f0d58
commit 0a0ffca145
1 changed files with 26 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

39
drivers/gpu/nvgpu/gv11b/mm_gv11b.c
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@@ -89,6 +89,12 @@ static int gv11b_mm_mmu_fault_info_buf_init(struct gk20a *g,
{
struct mmu_fault_info *fault_info_mem;
if (g->mm.fault_info[FAULT_TYPE_OTHER_AND_NONREPLAY] != NULL &&
g->mm.fault_info[FAULT_TYPE_REPLAY] != NULL) {
*hub_intr_types |= HUB_INTR_TYPE_OTHER;
return 0;
}
fault_info_mem = nvgpu_kzalloc(g, sizeof(struct mmu_fault_info) *
FAULT_TYPE_NUM);
if (!fault_info_mem) {
@@ -117,24 +123,31 @@ static void gv11b_mm_mmu_hw_fault_buf_init(struct gk20a *g,
fb_size = (g->ops.fifo.get_num_fifos(g) + 1) *
gmmu_fault_buf_size_v();
err = nvgpu_dma_alloc_map_sys(vm, fb_size,
if (!nvgpu_mem_is_valid(
&g->mm.hw_fault_buf[FAULT_TYPE_OTHER_AND_NONREPLAY])) {
err = nvgpu_dma_alloc_map_sys(vm, fb_size,
&g->mm.hw_fault_buf[FAULT_TYPE_OTHER_AND_NONREPLAY]);
if (err) {
nvgpu_err(g,
"Error in hw mmu fault buf [0] alloc in bar2 vm ");
/* Fault will be snapped in pri reg but not in buffer */
return;
if (err) {
nvgpu_err(g,
"Error in hw mmu fault buf [0] alloc in bar2 vm ");
/* Fault will be snapped in pri reg but not in buffer */
return;
}
}
*hub_intr_types |= HUB_INTR_TYPE_NONREPLAY;
err = nvgpu_dma_alloc_map_sys(vm, fb_size,
&g->mm.hw_fault_buf[FAULT_TYPE_REPLAY]);
if (err) {
nvgpu_err(g,
"Error in hw mmu fault buf [1] alloc in bar2 vm ");
/* Fault will be snapped in pri reg but not in buffer */
return;
if (!nvgpu_mem_is_valid(
&g->mm.hw_fault_buf[FAULT_TYPE_REPLAY])) {
err = nvgpu_dma_alloc_map_sys(vm, fb_size,
&g->mm.hw_fault_buf[FAULT_TYPE_REPLAY]);
if (err) {
nvgpu_err(g,
"Error in hw mmu fault buf [1] alloc in bar2 vm ");
/* Fault will be snapped in pri reg but not in buffer */
return;
}
}
*hub_intr_types |= HUB_INTR_TYPE_REPLAY;