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authorAlex Deucher <alexander.deucher@amd.com>2013-10-02 14:50:57 -0400
committerAlex Deucher <alexander.deucher@amd.com>2013-10-09 17:13:49 -0400
commita6f4ae8dc904ad0e4e416800172fc88f716314dd (patch)
tree57dea39f5bdeaa264c597c0275486d5b2ad4ee5a /drivers/gpu/drm
parent5fd9c581862a4874c0bdaf16231d8873832bbb99 (diff)
drm/radeon: improve soft reset on SI
Disable CG/PG and stop the rlc before resetting. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/radeon/si.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index c354c109496..d4652af425b 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -85,6 +85,9 @@ extern void si_dma_vm_set_page(struct radeon_device *rdev,
uint32_t incr, uint32_t flags);
static void si_enable_gui_idle_interrupt(struct radeon_device *rdev,
bool enable);
+static void si_fini_pg(struct radeon_device *rdev);
+static void si_fini_cg(struct radeon_device *rdev);
+static void si_rlc_stop(struct radeon_device *rdev);
static const u32 verde_rlc_save_restore_register_list[] =
{
@@ -3608,6 +3611,13 @@ static void si_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS));
+ /* disable PG/CG */
+ si_fini_pg(rdev);
+ si_fini_cg(rdev);
+
+ /* stop the rlc */
+ si_rlc_stop(rdev);
+
/* Disable CP parsing/prefetching */
WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT);