diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c index 51cf8acd2d79..8cf53e039c11 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c +++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c @@ -646,6 +646,41 @@ static void gfxhub_v2_1_restore_regs(struct amdgpu_device *adev) WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, adev->gmc.MC_VM_MX_L1_TLB_CNTL); } +static void gfxhub_v2_1_halt(struct amdgpu_device *adev) +{ + struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0]; + int i; + uint32_t tmp; + int time = 1000; + + gfxhub_v2_1_set_fault_enable_default(adev, false); + + for (i = 0; i <= 14; i++) { + WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, + i * hub->ctx_addr_distance, ~0); + WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, + i * hub->ctx_addr_distance, ~0); + WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, + i * hub->ctx_addr_distance, + 0); + WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, + i * hub->ctx_addr_distance, + 0); + } + tmp = RREG32_SOC15(GC, 0, mmGRBM_STATUS2); + while ((tmp & (GRBM_STATUS2__EA_BUSY_MASK | + GRBM_STATUS2__EA_LINK_BUSY_MASK)) != 0 && + time) { + udelay(100); + time--; + tmp = RREG32_SOC15(GC, 0, mmGRBM_STATUS2); + } + + if (!time) { + DRM_WARN("failed to wait for GRBM(EA) idle\n"); + } +} + const struct amdgpu_gfxhub_funcs gfxhub_v2_1_funcs = { .get_fb_location = gfxhub_v2_1_get_fb_location, .get_mc_fb_offset = gfxhub_v2_1_get_mc_fb_offset, @@ -658,4 +693,5 @@ const struct amdgpu_gfxhub_funcs gfxhub_v2_1_funcs = { .utcl2_harvest = gfxhub_v2_1_utcl2_harvest, .mode2_save_regs = gfxhub_v2_1_save_regs, .mode2_restore_regs = gfxhub_v2_1_restore_regs, + .halt = gfxhub_v2_1_halt, }; |