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/*
* Copyright 2013 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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.
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* Authors: Christian König <christian.koenig@amd.com>
*/
#include <linux/firmware.h>
#include <drm/drmP.h>
#include "radeon.h"
#include "radeon_asic.h"
#include "cikd.h"
#define VCE_V2_0_FW_SIZE (256 * 1024)
#define VCE_V2_0_STACK_SIZE (64 * 1024)
#define VCE_V2_0_DATA_SIZE (23552 * RADEON_MAX_VCE_HANDLES)
static void vce_v2_0_set_sw_cg(struct radeon_device *rdev, bool gated)
{
u32 tmp;
if (gated) {
tmp = RREG32(VCE_CLOCK_GATING_B);
tmp |= 0xe70000;
WREG32(VCE_CLOCK_GATING_B, tmp);
tmp = RREG32(VCE_UENC_CLOCK_GATING);
tmp |= 0xff000000;
WREG32(VCE_UENC_CLOCK_GATING, tmp);
tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
tmp &= ~0x3fc;
WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
WREG32(VCE_CGTT_CLK_OVERRIDE, 0);
} else {
tmp = RREG32(VCE_CLOCK_GATING_B);
tmp |= 0xe7;
tmp &= ~0xe70000;
WREG32(VCE_CLOCK_GATING_B, tmp);
tmp = RREG32(VCE_UENC_CLOCK_GATING);
tmp |= 0x1fe000;
tmp &= ~0xff000000;
WREG32(VCE_UENC_CLOCK_GATING, tmp);
tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
tmp |= 0x3fc;
WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
}
}
static void vce_v2_0_set_dyn_cg(struct radeon_device *rdev, bool gated)
{
u32 orig, tmp;
tmp = RREG32(VCE_CLOCK_GATING_B);
tmp &= ~0x00060006;
if (gated) {
tmp |= 0xe10000;
} else {
tmp |= 0xe1;
tmp &= ~0xe10000;
}
WREG32(VCE_CLOCK_GATING_B, tmp);
orig = tmp = RREG32(VCE_UENC_CLOCK_GATING);
tmp &= ~0x1fe000;
tmp &= ~0xff000000;
if (tmp != orig)
WREG32(VCE_UENC_CLOCK_GATING, tmp);
orig = tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
tmp &= ~0x3fc;
if (tmp != orig)
WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
if (gated)
WREG32(VCE_CGTT_CLK_OVERRIDE, 0);
}
static void vce_v2_0_disable_cg(struct radeon_device *rdev)
{
WREG32(VCE_CGTT_CLK_OVERRIDE, 7);
}
/*
* Local variable sw_cg is used for debugging purposes, in case we
* ran into problems with dynamic clock gating. Don't remove it.
*/
void vce_v2_0_enable_mgcg(struct radeon_device *rdev, bool enable)
{
bool sw_cg = false;
if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_VCE_MGCG)) {
if (sw_cg)
vce_v2_0_set_sw_cg(rdev, true);
else
vce_v2_0_set_dyn_cg(rdev, true);
} else {
vce_v2_0_disable_cg(rdev);
if (sw_cg)
vce_v2_0_set_sw_cg(rdev, false);
else
vce_v2_0_set_dyn_cg(rdev, false);
}
}
static void vce_v2_0_init_cg(struct radeon_device *rdev)
{
u32 tmp;
tmp = RREG32(VCE_CLOCK_GATING_A);
tmp &= ~(CGC_CLK_GATE_DLY_TIMER_MASK | CGC_CLK_GATER_OFF_DLY_TIMER_MASK);
tmp |= (CGC_CLK_GATE_DLY_TIMER(0) | CGC_CLK_GATER_OFF_DLY_TIMER(4));
tmp |= CGC_UENC_WAIT_AWAKE;
WREG32(VCE_CLOCK_GATING_A, tmp);
tmp = RREG32(VCE_UENC_CLOCK_GATING);
tmp &= ~(CLOCK_ON_DELAY_MASK | CLOCK_OFF_DELAY_MASK);
tmp |= (CLOCK_ON_DELAY(0) | CLOCK_OFF_DELAY(4));
WREG32(VCE_UENC_CLOCK_GATING, tmp);
tmp = RREG32(VCE_CLOCK_GATING_B);
tmp |= 0x10;
tmp &= ~0x100000;
WREG32(VCE_CLOCK_GATING_B, tmp);
}
unsigned vce_v2_0_bo_size(struct radeon_device *rdev)
{
WARN_ON(rdev->vce_fw->size > VCE_V2_0_FW_SIZE);
return VCE_V2_0_FW_SIZE + VCE_V2_0_STACK_SIZE + VCE_V2_0_DATA_SIZE;
}
int vce_v2_0_resume(struct radeon_device *rdev)
{
uint64_t addr = rdev->vce.gpu_addr;
uint32_t size;
WREG32_P(VCE_CLOCK_GATING_A, 0, ~(1 << 16));
WREG32_P(VCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000);
WREG32_P(VCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F);
WREG32(VCE_CLOCK_GATING_B, 0xf7);
WREG32(VCE_LMI_CTRL, 0x00398000);
WREG32_P(VCE_LMI_CACHE_CTRL, 0x0, ~0x1);
WREG32(VCE_LMI_SWAP_CNTL, 0);
WREG32(VCE_LMI_SWAP_CNTL1, 0);
WREG32(VCE_LMI_VM_CTRL, 0);
WREG32(VCE_LMI_VCPU_CACHE_40BIT_BAR, addr >> 8);
addr &= 0xff;
size = VCE_V2_0_FW_SIZE;
WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff);
WREG32(VCE_VCPU_CACHE_SIZE0, size);
addr += size;
size = VCE_V2_0_STACK_SIZE;
WREG32(VCE_VCPU_CACHE_OFFSET1, addr & 0x7fffffff);
WREG32(VCE_VCPU_CACHE_SIZE1, size);
addr += size;
size = VCE_V2_0_DATA_SIZE;
WREG32(VCE_VCPU_CACHE_OFFSET2, addr & 0x7fffffff);
WREG32(VCE_VCPU_CACHE_SIZE2, size);
WREG32_P(VCE_LMI_CTRL2, 0x0, ~0x100);
WREG32_P(VCE_SYS_INT_EN, VCE_SYS_INT_TRAP_INTERRUPT_EN,
~VCE_SYS_INT_TRAP_INTERRUPT_EN);
vce_v2_0_init_cg(rdev);
return 0;
}
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