diff options
author | 2015-08-04 12:17:53 -0700 | |
---|---|---|
committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/radeon/trinity_smc.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/radeon/trinity_smc.c')
-rw-r--r-- | kernel/drivers/gpu/drm/radeon/trinity_smc.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/radeon/trinity_smc.c b/kernel/drivers/gpu/drm/radeon/trinity_smc.c new file mode 100644 index 000000000..99dd04553 --- /dev/null +++ b/kernel/drivers/gpu/drm/radeon/trinity_smc.c @@ -0,0 +1,127 @@ +/* + * Copyright 2012 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#include "drmP.h" +#include "radeon.h" +#include "trinityd.h" +#include "trinity_dpm.h" +#include "ppsmc.h" + +static int trinity_notify_message_to_smu(struct radeon_device *rdev, u32 id) +{ + int i; + u32 v = 0; + + WREG32(SMC_MESSAGE_0, id); + for (i = 0; i < rdev->usec_timeout; i++) { + if (RREG32(SMC_RESP_0) != 0) + break; + udelay(1); + } + v = RREG32(SMC_RESP_0); + + if (v != 1) { + if (v == 0xFF) { + DRM_ERROR("SMC failed to handle the message!\n"); + return -EINVAL; + } else if (v == 0xFE) { + DRM_ERROR("Unknown SMC message!\n"); + return -EINVAL; + } + } + + return 0; +} + +int trinity_dpm_bapm_enable(struct radeon_device *rdev, bool enable) +{ + if (enable) + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_EnableBAPM); + else + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DisableBAPM); +} + +int trinity_dpm_config(struct radeon_device *rdev, bool enable) +{ + if (enable) + WREG32_SMC(SMU_SCRATCH0, 1); + else + WREG32_SMC(SMU_SCRATCH0, 0); + + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_Config); +} + +int trinity_dpm_force_state(struct radeon_device *rdev, u32 n) +{ + WREG32_SMC(SMU_SCRATCH0, n); + + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_ForceState); +} + +int trinity_dpm_n_levels_disabled(struct radeon_device *rdev, u32 n) +{ + WREG32_SMC(SMU_SCRATCH0, n); + + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DPM_N_LevelsDisabled); +} + +int trinity_uvd_dpm_config(struct radeon_device *rdev) +{ + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_UVD_DPM_Config); +} + +int trinity_dpm_no_forced_level(struct radeon_device *rdev) +{ + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_NoForcedLevel); +} + +int trinity_dce_enable_voltage_adjustment(struct radeon_device *rdev, + bool enable) +{ + if (enable) + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_AllowVoltageAdjustment); + else + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_DCE_RemoveVoltageAdjustment); +} + +int trinity_gfx_dynamic_mgpg_config(struct radeon_device *rdev) +{ + return trinity_notify_message_to_smu(rdev, PPSMC_MSG_PG_SIMD_Config); +} + +void trinity_acquire_mutex(struct radeon_device *rdev) +{ + int i; + + WREG32(SMC_INT_REQ, 1); + for (i = 0; i < rdev->usec_timeout; i++) { + if ((RREG32(SMC_INT_REQ) & 0xffff) == 1) + break; + udelay(1); + } +} + +void trinity_release_mutex(struct radeon_device *rdev) +{ + WREG32(SMC_INT_REQ, 0); +} |