/*
* Copyright 2013 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.
*
* Authors: Christian König <christian.koenig@amd.com>
*/
#include <linux/firmware.h>
#include <drm/drmP.h>
#include "radeon.h"
#include "radeon_asic.h"
#include "r600d.h"
/**
* uvd_v1_0_get_rptr - get read pointer
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
*
* Returns the current hardware read pointer
*/
uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
return RREG32(UVD_RBC_RB_RPTR);
}
/**
* uvd_v1_0_get_wptr - get write pointer
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
*
* Returns the current hardware write pointer
*/
uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
return RREG32(UVD_RBC_RB_WPTR);
}
/**
* uvd_v1_0_set_wptr - set write pointer
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
*
* Commits the write pointer to the hardware
*/
void uvd_v1_0_set_wptr(struct radeon_device *rdev,
struct radeon_ring *ring)
{
WREG32(UVD_RBC_RB_WPTR, ring->wptr);
}
/**
* uvd_v1_0_fence_emit - emit an fence & trap command
*
* @rdev: radeon_device pointer
* @fence: fence to emit
*
* Write a fence and a trap command to the ring.
*/
void uvd_v1_0_fence_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
struct radeon_ring *ring = &rdev->ring[fence->ring];
uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr;
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
radeon_ring_write(ring, addr & 0xffffffff);
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
radeon_ring_write(ring, fence->seq);
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
radeon_ring_write(ring, 0);
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0));
radeon_ring_write(ring, 0);
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0));
radeon_ring_write(ring, 0);
radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0));
radeon_ring_write(ring, 2);
return;
}
/**
* uvd_v1_0_resume - memory controller programming
*
* @rdev: radeon_device pointer
*
* Let the UVD memory controller know it's offsets
*/
int uvd_v1_0_resume(struct radeon_device *rdev)
{
uint64_t addr;
uint32_t size;
int r;
r = radeon_uvd_resume(rdev);
if (r)
return r;
/* programm the VCPU memory controller bits 0-27 */
addr = (rdev->uvd.gpu_addr >> 3) + 16;
size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size) >> 3;
WREG32(UVD_VCPU_CACHE_OFFSET0, addr);
WREG32(UVD_VCPU_CACHE_SIZE0, size);
addr += size;
size = RADEON_UVD_STACK_SIZE >> 3;
WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
WREG32(UVD_VCPU_CACHE_SIZE1, size);
addr += size;
size = RADEON_UVD_HEAP_SIZE >> 3;
WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
WREG32(UVD_VCPU_CACHE_SIZE2, size);
/* bits 28-31 */
addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
/* bits 32-39 */
addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
WREG32(UVD_FW_START, *((uint32_t*)rdev->uvd.cpu_addr));
return 0;
}
/**
* uvd_v1_0_init - start and test UVD block
*
* @rdev: radeon_device pointer
*
* Initialize the hardware, boot up the VCPU and do some testing
*/
int uvd_v1_0_init(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
uint32_t tmp;
int r;
/* raise clocks while booting up the VCPU */
if (rdev->family < CHIP_RV740)
radeon_set_uvd_clocks(rdev, 10000, 10000);
else
radeon_set_uvd_clocks(rdev, 53300, 40000);
r = uvd_v1_0_start(rdev);
if (r)
goto done;
ring->ready = true;
r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);
if (r) {
ring->ready = false;
goto done;
}
r = radeon_ring_lock(rdev, ring, 10);
if (r) {
DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);
goto done;
}
tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
radeon_ring_write(ring, tmp);
radeon_ring_write(ring, 0xFFFFF);
tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
radeon_ring_write(ring, tmp);
radeon_ring_write(ring, 0xFFFFF);
tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
radeon_ring_write(ring, tmp);
radeon_ring_write(ring, 0xFFFFF);
/* Clear timeout status bits */
radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));
radeon_ring_write(ring, 0x8);
radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
radeon_ring_write(ring, 3);
radeon_ring_unlock_commit(rdev, ring, false);
done:
/* lower clocks again */
radeon_set_uvd_clocks(rdev, 0, 0);
if (!r) {
switch (rdev->family) {
case CHIP_RV610:
case CHIP_RV630:
case CHIP_RV620:
/* 64byte granularity workaround */
WREG32(MC_CONFIG, 0);
WREG32(MC_CONFIG, 1 << 4);
WREG32(RS_DQ_RD_RET_CONF, 0x3f);
WREG32(MC_CONFIG, 0x1f);
/* fall through */
case CHIP_RV670:
case CHIP_RV635:
/* write clean workaround */
WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10);
break;
default:
/* TODO: Do we need more? */
break;
}
DRM_INFO("UVD initialized successfully.\n");
}
return r;
}
/**
* uvd_v1_0_fini - stop the hardware block
*
* @rdev: radeon_device pointer
*
* Stop the UVD block, mark ring as not ready any more
*/
void uvd_v1_0_fini(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
uvd_v1_0_stop(rdev);
ring->ready = false;
}
/**
* uvd_v1_0_start - start UVD block
*
* @rdev: radeon_device pointer
*
* Setup and start the UVD block
*/
int uvd_v1_0_start(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
uint32_t rb_bufsz;
int i, j, r;
/* disable byte swapping */
u32 lmi_swap_cntl = 0;
u32 mp_swap_cntl = 0;
/* disable clock gating */
WREG32(UVD_CGC_GATE, 0);
/* disable interupt */
WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));
/* Stall UMC and register bus before resetting VCPU */
WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
mdelay(1);
/* put LMI, VCPU, RBC etc... into reset */
WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |
LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |
CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);
mdelay(5);
/* take UVD block out of reset */
WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);
mdelay(5);
/* initialize UVD memory controller */
WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
(1 << 21) | (1 << 9) | (1 << 20));
#ifdef __BIG_ENDIAN
/* swap (8 in 32) RB and IB */
lmi_swap_cntl = 0xa;
mp_swap_cntl = 0;
#endif
WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
WREG32(UVD_MPC_SET_MUXA1, 0x0);
WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);
WREG32(UVD_MPC_SET_MUXB1, 0x0);
WREG32(UVD_MPC_SET_ALU, 0);
WREG32(UVD_MPC_SET_MUX, 0x88);
/* take all subblocks out of reset, except VCPU */
WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
mdelay(5);
/* enable VCPU clock */
WREG32(UVD_VCPU_CNTL, 1 << 9);
/* enable UMC */
WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
/* boot up the VCPU */
WREG32(UVD_SOFT_RESET, 0);
mdelay(10);
for (i = 0; i < 10; ++i) {
uint32_t status;
for (j = 0; j < 100; ++j) {
status = RREG32(UVD_STATUS);
if (status & 2)
break;
mdelay(10);
}
r = 0;
if (status & 2)
break;
DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);
mdelay(10);
WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);
mdelay(10);
r = -1;
}
if (r) {
DRM_ERROR("UVD not responding, giving up!!!\n");
return r;
}
/* enable interupt */
WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
/* force RBC into idle state */
WREG32(UVD_RBC_RB_CNTL, 0x11010101);
/* Set the write pointer delay */
WREG32(UVD_RBC_RB_WPTR_CNTL, 0);
/* programm the 4GB memory segment for rptr and ring buffer */
WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
(0x7 << 16) | (0x1 << 31));
/* Initialize the ring buffer's read and write pointers */
WREG32(UVD_RBC_RB_RPTR, 0x0);
ring->wptr = RREG32(UVD_RBC_RB_RPTR);
WREG32(UVD_RBC_RB_WPTR, ring->wptr);
/* set the ring address */
WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);
/* Set ring buffer size */
rb_bufsz = order_base_2(ring->ring_size);
rb_bufsz = (0x1 << 8) | rb_bufsz;
WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
return 0;
}
/**
* uvd_v1_0_stop - stop UVD block
*
* @rdev: radeon_device pointer
*
* stop the UVD block
*/
void uvd_v1_0_stop(struct radeon_device *rdev)
{
/* force RBC into idle state */
WREG32(UVD_RBC_RB_CNTL, 0x11010101);
/* Stall UMC and register bus before resetting VCPU */
WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
mdelay(1);
/* put VCPU into reset */
WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
mdelay(5);
/* disable VCPU clock */
WREG32(UVD_VCPU_CNTL, 0x0);
/* Unstall UMC and register bus */
WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
}
/**
* uvd_v1_0_ring_test - register write test
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
*
* Test if we can successfully write to the context register
*/
int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
{
uint32_t tmp = 0;
unsigned i;
int r;
WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);
r = radeon_ring_lock(rdev, ring, 3);
if (r) {
DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",
ring->idx, r);
return r;
}
radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
radeon_ring_write(ring, 0xDEADBEEF);
radeon_ring_unlock_commit(rdev, ring, false);
for (i = 0; i < rdev->usec_timeout; i++) {
tmp = RREG32(UVD_CONTEXT_ID);
if (tmp == 0xDEADBEEF)
break;
DRM_UDELAY(1);
}
if (i < rdev->usec_timeout) {
DRM_INFO("ring test on %d succeeded in %d usecs\n",
ring->idx, i);
} else {
DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
ring->idx, tmp);
r = -EINVAL;
}
return r;
}
/**
* uvd_v1_0_semaphore_emit - emit semaphore command
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
* @semaphore: semaphore to emit commands for
* @emit_wait: true if we should emit a wait command
*
* Emit a semaphore command (either wait or signal) to the UVD ring.
*/
bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
struct radeon_ring *ring,
struct radeon_semaphore *semaphore,
bool emit_wait)
{
/* disable semaphores for UVD V1 hardware */
return false;
}
/**
* uvd_v1_0_ib_execute - execute indirect buffer
*
* @rdev: radeon_device pointer
* @ib: indirect buffer to execute
*
* Write ring commands to execute the indirect buffer
*/
void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
{
struct radeon_ring *ring = &rdev->ring[ib->ring];
radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));
radeon_ring_write(ring, ib->gpu_addr);
radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));
radeon_ring_write(ring, ib->length_dw);
}
/**
* uvd_v1_0_ib_test - test ib execution
*
* @rdev: radeon_device pointer
* @ring: radeon_ring pointer
*
* Test if we can successfully execute an IB
*/
int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
{
struct radeon_fence *fence = NULL;
int r;
if (rdev->family < CHIP_RV740)
r = radeon_set_uvd_clocks(rdev, 10000, 10000);
else
r = radeon_set_uvd_clocks(rdev, 53300, 40000);
if (r) {
DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
return r;
}
r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
if (r) {
DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
goto error;
}
r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
if (r) {
DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
goto error;
}
r = radeon_fence_wait(fence, false);
if (r) {
DRM_ERROR("radeon: fence wait failed (%d).\n", r);
goto error;
}
DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
error:
radeon_fence_unref(&fence);
radeon_set_uvd_clocks(rdev, 0, 0);
return r;
}