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drm/amdgpu: add vcn ip block functions (v2)

Browse source 
Fill in the core VCN 1.0 setup functionality.

v2: squash in fixup (Alex)

Signed-off-by: Leo Liu <leo.liu@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Liu 2016-12-28 11:57:38 -05:00 committed by Alex Deucher
parent 2d531d81d0
commit 88b5af70e2
3 changed files with 421 additions and 2 deletions
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3
drivers/gpu/drm/amd/amdgpu/Makefile
View file

@ -95,7 +95,8 @@ amdgpu-y += \
# add VCN block
amdgpu-y += \
amdgpu_vcn.o
amdgpu_vcn.o \
vcn_v1_0.o
# add amdkfd interfaces
amdgpu-y += \

3
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
View file

@ -62,8 +62,9 @@ enum amdgpu_ih_clientid
AMDGPU_IH_CLIENTID_MP0 = 0x1e,
AMDGPU_IH_CLIENTID_MP1 = 0x1f,
AMDGPU_IH_CLIENTID_MAX
AMDGPU_IH_CLIENTID_MAX,
AMDGPU_IH_CLIENTID_VCN = AMDGPU_IH_CLIENTID_UVD
};
#define AMDGPU_IH_CLIENTID_LEGACY 0

417
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c Normal file
View file

@ -0,0 +1,417 @@
/*
* Copyright 2016 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 <linux/firmware.h>
#include <drm/drmP.h>
#include "amdgpu.h"
#include "amdgpu_vcn.h"
#include "soc15d.h"
#include "soc15_common.h"
#include "vega10/soc15ip.h"
#include "raven1/VCN/vcn_1_0_offset.h"
#include "raven1/VCN/vcn_1_0_sh_mask.h"
#include "vega10/HDP/hdp_4_0_offset.h"
#include "raven1/MMHUB/mmhub_9_1_offset.h"
#include "raven1/MMHUB/mmhub_9_1_sh_mask.h"
static int vcn_v1_0_start(struct amdgpu_device *adev);
static int vcn_v1_0_stop(struct amdgpu_device *adev);
/**
* vcn_v1_0_early_init - set function pointers
*
* @handle: amdgpu_device pointer
*
* Set ring and irq function pointers
*/
static int vcn_v1_0_early_init(void *handle)
{
return 0;
}
/**
* vcn_v1_0_sw_init - sw init for VCN block
*
* @handle: amdgpu_device pointer
*
* Load firmware and sw initialization
*/
static int vcn_v1_0_sw_init(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
/* VCN TRAP */
r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_VCN, 124, &adev->vcn.irq);
if (r)
return r;
r = amdgpu_vcn_sw_init(adev);
if (r)
return r;
r = amdgpu_vcn_resume(adev);
if (r)
return r;
return r;
}
/**
* vcn_v1_0_sw_fini - sw fini for VCN block
*
* @handle: amdgpu_device pointer
*
* VCN suspend and free up sw allocation
*/
static int vcn_v1_0_sw_fini(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = amdgpu_vcn_suspend(adev);
if (r)
return r;
r = amdgpu_vcn_sw_fini(adev);
return r;
}
/**
* vcn_v1_0_hw_init - start and test VCN block
*
* @handle: amdgpu_device pointer
*
* Initialize the hardware, boot up the VCPU and do some testing
*/
static int vcn_v1_0_hw_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct amdgpu_ring *ring = &adev->vcn.ring_dec;
int r;
r = vcn_v1_0_start(adev);
if (r)
goto done;
ring->ready = true;
r = amdgpu_ring_test_ring(ring);
if (r) {
ring->ready = false;
goto done;
}
done:
if (!r)
DRM_INFO("VCN decode initialized successfully.\n");
return r;
}
/**
* vcn_v1_0_hw_fini - stop the hardware block
*
* @handle: amdgpu_device pointer
*
* Stop the VCN block, mark ring as not ready any more
*/
static int vcn_v1_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct amdgpu_ring *ring = &adev->vcn.ring_dec;
int r;
r = vcn_v1_0_stop(adev);
if (r)
return r;
ring->ready = false;
return 0;
}
/**
* vcn_v1_0_suspend - suspend VCN block
*
* @handle: amdgpu_device pointer
*
* HW fini and suspend VCN block
*/
static int vcn_v1_0_suspend(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = vcn_v1_0_hw_fini(adev);
if (r)
return r;
r = amdgpu_vcn_suspend(adev);
return r;
}
/**
* vcn_v1_0_resume - resume VCN block
*
* @handle: amdgpu_device pointer
*
* Resume firmware and hw init VCN block
*/
static int vcn_v1_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
r = amdgpu_vcn_resume(adev);
if (r)
return r;
r = vcn_v1_0_hw_init(adev);
return r;
}
/**
* vcn_v1_0_mc_resume - memory controller programming
*
* @adev: amdgpu_device pointer
*
* Let the VCN memory controller know it's offsets
*/
static void vcn_v1_0_mc_resume(struct amdgpu_device *adev)
{
uint64_t offset;
uint32_t size;
/* programm memory controller bits 0-27 */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_LOW),
lower_32_bits(adev->vcn.gpu_addr));
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_VCPU_CACHE_64BIT_BAR_HIGH),
upper_32_bits(adev->vcn.gpu_addr));
/* Current FW has no signed header, but will be added later on */
/* offset = AMDGPU_VCN_FIRMWARE_OFFSET; */
offset = 0;
size = AMDGPU_GPU_PAGE_ALIGN(adev->vcn.fw->size + 4);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET0), offset >> 3);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE0), size);
offset += size;
size = AMDGPU_VCN_HEAP_SIZE;
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET1), offset >> 3);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE1), size);
offset += size;
size = AMDGPU_VCN_STACK_SIZE + (AMDGPU_VCN_SESSION_SIZE * 40);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_OFFSET2), offset >> 3);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CACHE_SIZE2), size);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_ADDR_CONFIG),
adev->gfx.config.gb_addr_config);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_DB_ADDR_CONFIG),
adev->gfx.config.gb_addr_config);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_UDEC_DBW_ADDR_CONFIG),
adev->gfx.config.gb_addr_config);
}
/**
* vcn_v1_0_start - start VCN block
*
* @adev: amdgpu_device pointer
*
* Setup and start the VCN block
*/
static int vcn_v1_0_start(struct amdgpu_device *adev)
{
uint32_t lmi_swap_cntl;
int i, j, r;
/* disable byte swapping */
lmi_swap_cntl = 0;
vcn_v1_0_mc_resume(adev);
/* disable clock gating */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_CGC_CTRL), 0,
~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK);
/* disable interupt */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0,
~UVD_MASTINT_EN__VCPU_EN_MASK);
/* stall UMC and register bus before resetting VCPU */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
mdelay(1);
/* put LMI, VCPU, RBC etc... into reset */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
UVD_SOFT_RESET__LBSI_SOFT_RESET_MASK |
UVD_SOFT_RESET__RBC_SOFT_RESET_MASK |
UVD_SOFT_RESET__CSM_SOFT_RESET_MASK |
UVD_SOFT_RESET__CXW_SOFT_RESET_MASK |
UVD_SOFT_RESET__TAP_SOFT_RESET_MASK |
UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
mdelay(5);
/* initialize VCN memory controller */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL),
(0x40 << UVD_LMI_CTRL__WRITE_CLEAN_TIMER__SHIFT) |
UVD_LMI_CTRL__WRITE_CLEAN_TIMER_EN_MASK |
UVD_LMI_CTRL__DATA_COHERENCY_EN_MASK |
UVD_LMI_CTRL__VCPU_DATA_COHERENCY_EN_MASK |
UVD_LMI_CTRL__REQ_MODE_MASK |
0x00100000L);
#ifdef __BIG_ENDIAN
/* swap (8 in 32) RB and IB */
lmi_swap_cntl = 0xa;
#endif
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_SWAP_CNTL), lmi_swap_cntl);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXA0), 0x40c2040);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXA1), 0x0);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXB0), 0x40c2040);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUXB1), 0x0);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_ALU), 0);
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_MPC_SET_MUX), 0x88);
/* take all subblocks out of reset, except VCPU */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
mdelay(5);
/* enable VCPU clock */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL),
UVD_VCPU_CNTL__CLK_EN_MASK);
/* enable UMC */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
/* boot up the VCPU */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0);
mdelay(10);
for (i = 0; i < 10; ++i) {
uint32_t status;
for (j = 0; j < 100; ++j) {
status = RREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS));
if (status & 2)
break;
mdelay(10);
}
r = 0;
if (status & 2)
break;
DRM_ERROR("VCN decode not responding, trying to reset the VCPU!!!\n");
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
mdelay(10);
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET), 0,
~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
mdelay(10);
r = -1;
}
if (r) {
DRM_ERROR("VCN decode not responding, giving up!!!\n");
return r;
}
/* enable master interrupt */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN),
(UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK),
~(UVD_MASTINT_EN__VCPU_EN_MASK|UVD_MASTINT_EN__SYS_EN_MASK));
/* clear the bit 4 of VCN_STATUS */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS), 0,
~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
return 0;
}
/**
* vcn_v1_0_stop - stop VCN block
*
* @adev: amdgpu_device pointer
*
* stop the VCN block
*/
static int vcn_v1_0_stop(struct amdgpu_device *adev)
{
/* Stall UMC and register bus before resetting VCPU */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2),
UVD_LMI_CTRL2__STALL_ARB_UMC_MASK,
~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
mdelay(1);
/* put VCPU into reset */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_SOFT_RESET),
UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
mdelay(5);
/* disable VCPU clock */
WREG32(SOC15_REG_OFFSET(UVD, 0, mmUVD_VCPU_CNTL), 0x0);
/* Unstall UMC and register bus */
WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_LMI_CTRL2), 0,
~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK);
return 0;
}
static int vcn_v1_0_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
/* needed for driver unload*/
return 0;
}
static const struct amd_ip_funcs vcn_v1_0_ip_funcs = {
.name = "vcn_v1_0",
.early_init = vcn_v1_0_early_init,
.late_init = NULL,
.sw_init = vcn_v1_0_sw_init,
.sw_fini = vcn_v1_0_sw_fini,
.hw_init = vcn_v1_0_hw_init,
.hw_fini = vcn_v1_0_hw_fini,
.suspend = vcn_v1_0_suspend,
.resume = vcn_v1_0_resume,
.is_idle = NULL /* vcn_v1_0_is_idle */,
.wait_for_idle = NULL /* vcn_v1_0_wait_for_idle */,
.check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */,
.pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */,
.soft_reset = NULL /* vcn_v1_0_soft_reset */,
.post_soft_reset = NULL /* vcn_v1_0_post_soft_reset */,
.set_clockgating_state = vcn_v1_0_set_clockgating_state,
.set_powergating_state = NULL /* vcn_v1_0_set_powergating_state */,
};