From 90fb87791a698ae16af374aaaa9540fde37f6195 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 23 Jan 2013 18:59:17 -0500 Subject: [PATCH] drm/radeon: halt engines before disabling MC (cayman/TN) It's better to halt the engines before we disable the MC. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/ni.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index eee013f5699a..4784c4e5056f 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1405,13 +1405,6 @@ static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", RREG32(0x14DC)); - r600_set_bios_scratch_engine_hung(rdev, true); - - evergreen_mc_stop(rdev, &save); - if (evergreen_mc_wait_for_idle(rdev)) { - dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); - } - /* Disable CP parsing/prefetching */ WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT); @@ -1429,6 +1422,13 @@ static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp); } + udelay(50); + + evergreen_mc_stop(rdev, &save); + if (evergreen_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) { grbm_soft_reset = SOFT_RESET_CB | SOFT_RESET_DB | -- 2.20.1