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drm/radeon: halt engines before disabling MC (6xx/7xx) 

It's better to halt the engines before we disable the MC.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-01-23 18:56:08 -05:00
parent 014bb20921
commit ca57802e52
1 changed files with 5 additions and 5 deletions
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10
drivers/gpu/drm/radeon/r600.c
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@ -1397,11 +1397,6 @@ static void r600_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
r600_print_gpu_status_regs(rdev);
rv515_mc_stop(rdev, &save);
if (r600_mc_wait_for_idle(rdev)) {
dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
}
/* Disable CP parsing/prefetching */
if (rdev->family >= CHIP_RV770)
WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1) | S_0086D8_CP_PFP_HALT(1));
@ -1420,6 +1415,11 @@ static void r600_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
mdelay(50);
rv515_mc_stop(rdev, &save);
if (r600_mc_wait_for_idle(rdev)) {
dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
}
if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) {
if (rdev->family >= CHIP_RV770)
grbm_soft_reset |= S_008020_SOFT_RESET_DB(1) |