diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/cik.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/cik.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 28f68dc96fdb..e448ae2230e6 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -27,9 +27,13 @@ #include <linux/module.h> #include "drmP.h" #include "radeon.h" +#include "radeon_asic.h" #include "cikd.h" #include "atom.h" +extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save); +extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save); + /* * Core functions */ @@ -1190,3 +1194,196 @@ static void cik_gpu_init(struct radeon_device *rdev) udelay(50); } +/** + * cik_gpu_is_lockup - check if the 3D engine is locked up + * + * @rdev: radeon_device pointer + * @ring: radeon_ring structure holding ring information + * + * Check if the 3D engine is locked up (CIK). + * Returns true if the engine is locked, false if not. + */ +bool cik_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring) +{ + u32 srbm_status, srbm_status2; + u32 grbm_status, grbm_status2; + u32 grbm_status_se0, grbm_status_se1, grbm_status_se2, grbm_status_se3; + + srbm_status = RREG32(SRBM_STATUS); + srbm_status2 = RREG32(SRBM_STATUS2); + grbm_status = RREG32(GRBM_STATUS); + grbm_status2 = RREG32(GRBM_STATUS2); + grbm_status_se0 = RREG32(GRBM_STATUS_SE0); + grbm_status_se1 = RREG32(GRBM_STATUS_SE1); + grbm_status_se2 = RREG32(GRBM_STATUS_SE2); + grbm_status_se3 = RREG32(GRBM_STATUS_SE3); + if (!(grbm_status & GUI_ACTIVE)) { + radeon_ring_lockup_update(ring); + return false; + } + /* force CP activities */ + radeon_ring_force_activity(rdev, ring); + return radeon_ring_test_lockup(rdev, ring); +} + +/** + * cik_gfx_gpu_soft_reset - soft reset the 3D engine and CPG + * + * @rdev: radeon_device pointer + * + * Soft reset the GFX engine and CPG blocks (CIK). + * XXX: deal with reseting RLC and CPF + * Returns 0 for success. + */ +static int cik_gfx_gpu_soft_reset(struct radeon_device *rdev) +{ + struct evergreen_mc_save save; + u32 grbm_reset = 0; + + if (!(RREG32(GRBM_STATUS) & GUI_ACTIVE)) + return 0; + + dev_info(rdev->dev, "GPU GFX softreset \n"); + dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n", + RREG32(GRBM_STATUS)); + dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n", + RREG32(GRBM_STATUS2)); + dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n", + RREG32(GRBM_STATUS_SE0)); + dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n", + RREG32(GRBM_STATUS_SE1)); + dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n", + RREG32(GRBM_STATUS_SE2)); + dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n", + RREG32(GRBM_STATUS_SE3)); + dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", + RREG32(SRBM_STATUS)); + dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n", + RREG32(SRBM_STATUS2)); + evergreen_mc_stop(rdev, &save); + if (radeon_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 | CP_CE_HALT); + + /* reset all the gfx block and all CPG blocks */ + grbm_reset = SOFT_RESET_CPG | SOFT_RESET_GFX; + + dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset); + WREG32(GRBM_SOFT_RESET, grbm_reset); + (void)RREG32(GRBM_SOFT_RESET); + udelay(50); + WREG32(GRBM_SOFT_RESET, 0); + (void)RREG32(GRBM_SOFT_RESET); + /* Wait a little for things to settle down */ + udelay(50); + dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n", + RREG32(GRBM_STATUS)); + dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n", + RREG32(GRBM_STATUS2)); + dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n", + RREG32(GRBM_STATUS_SE0)); + dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n", + RREG32(GRBM_STATUS_SE1)); + dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n", + RREG32(GRBM_STATUS_SE2)); + dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n", + RREG32(GRBM_STATUS_SE3)); + dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", + RREG32(SRBM_STATUS)); + dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n", + RREG32(SRBM_STATUS2)); + evergreen_mc_resume(rdev, &save); + return 0; +} + +/** + * cik_compute_gpu_soft_reset - soft reset CPC + * + * @rdev: radeon_device pointer + * + * Soft reset the CPC blocks (CIK). + * XXX: deal with reseting RLC and CPF + * Returns 0 for success. + */ +static int cik_compute_gpu_soft_reset(struct radeon_device *rdev) +{ + struct evergreen_mc_save save; + u32 grbm_reset = 0; + + dev_info(rdev->dev, "GPU compute softreset \n"); + dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n", + RREG32(GRBM_STATUS)); + dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n", + RREG32(GRBM_STATUS2)); + dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n", + RREG32(GRBM_STATUS_SE0)); + dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n", + RREG32(GRBM_STATUS_SE1)); + dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n", + RREG32(GRBM_STATUS_SE2)); + dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n", + RREG32(GRBM_STATUS_SE3)); + dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", + RREG32(SRBM_STATUS)); + dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n", + RREG32(SRBM_STATUS2)); + evergreen_mc_stop(rdev, &save); + if (radeon_mc_wait_for_idle(rdev)) { + dev_warn(rdev->dev, "Wait for MC idle timedout !\n"); + } + /* Disable CP parsing/prefetching */ + WREG32(CP_MEC_CNTL, MEC_ME1_HALT | MEC_ME2_HALT); + + /* reset all the CPC blocks */ + grbm_reset = SOFT_RESET_CPG; + + dev_info(rdev->dev, " GRBM_SOFT_RESET=0x%08X\n", grbm_reset); + WREG32(GRBM_SOFT_RESET, grbm_reset); + (void)RREG32(GRBM_SOFT_RESET); + udelay(50); + WREG32(GRBM_SOFT_RESET, 0); + (void)RREG32(GRBM_SOFT_RESET); + /* Wait a little for things to settle down */ + udelay(50); + dev_info(rdev->dev, " GRBM_STATUS=0x%08X\n", + RREG32(GRBM_STATUS)); + dev_info(rdev->dev, " GRBM_STATUS2=0x%08X\n", + RREG32(GRBM_STATUS2)); + dev_info(rdev->dev, " GRBM_STATUS_SE0=0x%08X\n", + RREG32(GRBM_STATUS_SE0)); + dev_info(rdev->dev, " GRBM_STATUS_SE1=0x%08X\n", + RREG32(GRBM_STATUS_SE1)); + dev_info(rdev->dev, " GRBM_STATUS_SE2=0x%08X\n", + RREG32(GRBM_STATUS_SE2)); + dev_info(rdev->dev, " GRBM_STATUS_SE3=0x%08X\n", + RREG32(GRBM_STATUS_SE3)); + dev_info(rdev->dev, " SRBM_STATUS=0x%08X\n", + RREG32(SRBM_STATUS)); + dev_info(rdev->dev, " SRBM_STATUS2=0x%08X\n", + RREG32(SRBM_STATUS2)); + evergreen_mc_resume(rdev, &save); + return 0; +} + +/** + * cik_asic_reset - soft reset compute and gfx + * + * @rdev: radeon_device pointer + * + * Soft reset the CPC blocks (CIK). + * XXX: make this more fine grained and only reset + * what is necessary. + * Returns 0 for success. + */ +int cik_asic_reset(struct radeon_device *rdev) +{ + int r; + + r = cik_compute_gpu_soft_reset(rdev); + if (r) + dev_info(rdev->dev, "Compute reset failed!\n"); + + return cik_gfx_gpu_soft_reset(rdev); +} |