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Merge branch 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next

Browse source 
Alex writes:
"adds support for the
asynchronous DMA engines on r6xx-SI.  These engines are used
for ttm bo moves and VM page table updates currently.  They
could also be exposed via the CS ioctl for userspace use,
but I haven't had a chance to add proper CS checker patches
for them yet.  These patches have been tested extensively
internally for months, so they should be pretty solid."

* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: use DMA engine for VM page table updates on SI
  drm/radeon: add dma engine support for vm pt updates on si (v2)
  drm/radeon: use DMA engine for VM page table updates on cayman/TN
  drm/radeon: add dma engine support for vm pt updates on ni (v5)
  drm/radeon: use async dma for ttm buffer moves on 6xx-SI
  drm/radeon/kms: add support for dma rings to radeon_test_moves()
  drm/radeon/kms: Add initial support for async DMA on SI
  drm/radeon/kms: Add initial support for async DMA on cayman/TN
  drm/radeon/kms: Add initial support for async DMA on evergreen
  drm/radeon/kms: Add initial support for async DMA on r6xx/r7xx
This commit is contained in:
Dave Airlie 2012-12-11 08:46:03 +10:00
commit a636a98291
14 changed files with 1739 additions and 98 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

200
drivers/gpu/drm/radeon/evergreen.c
View file

@ -2034,6 +2034,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
WREG32(GB_ADDR_CONFIG, gb_addr_config);
WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
WREG32(HDP_ADDR_CONFIG, gb_addr_config);
WREG32(DMA_TILING_CONFIG, gb_addr_config);
tmp = gb_addr_config & NUM_PIPES_MASK;
tmp = r6xx_remap_render_backend(rdev, tmp, rdev->config.evergreen.max_backends,
@ -2403,8 +2404,12 @@ void evergreen_disable_interrupt_state(struct radeon_device *rdev)
CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
cayman_cp_int_cntl_setup(rdev, 1, 0);
cayman_cp_int_cntl_setup(rdev, 2, 0);
tmp = RREG32(CAYMAN_DMA1_CNTL) & ~TRAP_ENABLE;
WREG32(CAYMAN_DMA1_CNTL, tmp);
} else
WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
tmp = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
WREG32(DMA_CNTL, tmp);
WREG32(GRBM_INT_CNTL, 0);
WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@ -2457,6 +2462,7 @@ int evergreen_irq_set(struct radeon_device *rdev)
u32 grbm_int_cntl = 0;
u32 grph1 = 0, grph2 = 0, grph3 = 0, grph4 = 0, grph5 = 0, grph6 = 0;
u32 afmt1 = 0, afmt2 = 0, afmt3 = 0, afmt4 = 0, afmt5 = 0, afmt6 = 0;
u32 dma_cntl, dma_cntl1 = 0;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
@ -2484,6 +2490,8 @@ int evergreen_irq_set(struct radeon_device *rdev)
afmt5 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
afmt6 = RREG32(AFMT_AUDIO_PACKET_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET) & ~AFMT_AZ_FORMAT_WTRIG_MASK;
dma_cntl = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
if (rdev->family >= CHIP_CAYMAN) {
/* enable CP interrupts on all rings */
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
@ -2506,6 +2514,19 @@ int evergreen_irq_set(struct radeon_device *rdev)
}
}
if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
DRM_DEBUG("r600_irq_set: sw int dma\n");
dma_cntl |= TRAP_ENABLE;
}
if (rdev->family >= CHIP_CAYMAN) {
dma_cntl1 = RREG32(CAYMAN_DMA1_CNTL) & ~TRAP_ENABLE;
if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_DMA1_INDEX])) {
DRM_DEBUG("r600_irq_set: sw int dma1\n");
dma_cntl1 |= TRAP_ENABLE;
}
}
if (rdev->irq.crtc_vblank_int[0] ||
atomic_read(&rdev->irq.pflip[0])) {
DRM_DEBUG("evergreen_irq_set: vblank 0\n");
@ -2591,6 +2612,12 @@ int evergreen_irq_set(struct radeon_device *rdev)
cayman_cp_int_cntl_setup(rdev, 2, cp_int_cntl2);
} else
WREG32(CP_INT_CNTL, cp_int_cntl);
WREG32(DMA_CNTL, dma_cntl);
if (rdev->family >= CHIP_CAYMAN)
WREG32(CAYMAN_DMA1_CNTL, dma_cntl1);
WREG32(GRBM_INT_CNTL, grbm_int_cntl);
WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
@ -3126,9 +3153,19 @@ int evergreen_irq_process(struct radeon_device *rdev)
} else
radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
break;
case 224: /* DMA trap event */
DRM_DEBUG("IH: DMA trap\n");
radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
break;
case 233: /* GUI IDLE */
DRM_DEBUG("IH: GUI idle\n");
break;
case 244: /* DMA trap event */
if (rdev->family >= CHIP_CAYMAN) {
DRM_DEBUG("IH: DMA1 trap\n");
radeon_fence_process(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
}
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
break;
@ -3154,6 +3191,143 @@ int evergreen_irq_process(struct radeon_device *rdev)
return IRQ_HANDLED;
}
/**
* evergreen_dma_fence_ring_emit - emit a fence on the DMA ring
*
* @rdev: radeon_device pointer
* @fence: radeon fence object
*
* Add a DMA fence packet to the ring to write
* the fence seq number and DMA trap packet to generate
* an interrupt if needed (evergreen-SI).
*/
void evergreen_dma_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
struct radeon_ring *ring = &rdev->ring[fence->ring];
u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
/* write the fence */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0, 0));
radeon_ring_write(ring, addr & 0xfffffffc);
radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
radeon_ring_write(ring, fence->seq);
/* generate an interrupt */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0, 0));
/* flush HDP */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | HDP_MEM_COHERENCY_FLUSH_CNTL);
radeon_ring_write(ring, 1);
}
/**
* evergreen_dma_ring_ib_execute - schedule an IB on the DMA engine
*
* @rdev: radeon_device pointer
* @ib: IB object to schedule
*
* Schedule an IB in the DMA ring (evergreen).
*/
void evergreen_dma_ring_ib_execute(struct radeon_device *rdev,
struct radeon_ib *ib)
{
struct radeon_ring *ring = &rdev->ring[ib->ring];
if (rdev->wb.enabled) {
u32 next_rptr = ring->wptr + 4;
while ((next_rptr & 7) != 5)
next_rptr++;
next_rptr += 3;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
radeon_ring_write(ring, next_rptr);
}
/* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
* Pad as necessary with NOPs.
*/
while ((ring->wptr & 7) != 5)
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0, 0));
radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
}
/**
* evergreen_copy_dma - copy pages using the DMA engine
*
* @rdev: radeon_device pointer
* @src_offset: src GPU address
* @dst_offset: dst GPU address
* @num_gpu_pages: number of GPU pages to xfer
* @fence: radeon fence object
*
* Copy GPU paging using the DMA engine (evergreen-cayman).
* Used by the radeon ttm implementation to move pages if
* registered as the asic copy callback.
*/
int evergreen_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages,
struct radeon_fence **fence)
{
struct radeon_semaphore *sem = NULL;
int ring_index = rdev->asic->copy.dma_ring_index;
struct radeon_ring *ring = &rdev->ring[ring_index];
u32 size_in_dw, cur_size_in_dw;
int i, num_loops;
int r = 0;
r = radeon_semaphore_create(rdev, &sem);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
return r;
}
size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
num_loops = DIV_ROUND_UP(size_in_dw, 0xfffff);
r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
radeon_semaphore_free(rdev, &sem, NULL);
return r;
}
if (radeon_fence_need_sync(*fence, ring->idx)) {
radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
ring->idx);
radeon_fence_note_sync(*fence, ring->idx);
} else {
radeon_semaphore_free(rdev, &sem, NULL);
}
for (i = 0; i < num_loops; i++) {
cur_size_in_dw = size_in_dw;
if (cur_size_in_dw > 0xFFFFF)
cur_size_in_dw = 0xFFFFF;
size_in_dw -= cur_size_in_dw;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
radeon_ring_write(ring, dst_offset & 0xfffffffc);
radeon_ring_write(ring, src_offset & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
src_offset += cur_size_in_dw * 4;
dst_offset += cur_size_in_dw * 4;
}
r = radeon_fence_emit(rdev, fence, ring->idx);
if (r) {
radeon_ring_unlock_undo(rdev, ring);
return r;
}
radeon_ring_unlock_commit(rdev, ring);
radeon_semaphore_free(rdev, &sem, *fence);
return r;
}
static int evergreen_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
@ -3217,6 +3391,12 @@ static int evergreen_startup(struct radeon_device *rdev)
return r;
}
r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
/* Enable IRQ */
r = r600_irq_init(rdev);
if (r) {
@ -3231,10 +3411,21 @@ static int evergreen_startup(struct radeon_device *rdev)
0, 0xfffff, RADEON_CP_PACKET2);
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR, DMA_RB_WPTR,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;
r = evergreen_cp_load_microcode(rdev);
if (r)
return r;
r = evergreen_cp_resume(rdev);
if (r)
return r;
r = r600_dma_resume(rdev);
if (r)
return r;
@ -3283,11 +3474,9 @@ int evergreen_resume(struct radeon_device *rdev)
int evergreen_suspend(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
r600_audio_fini(rdev);
r700_cp_stop(rdev);
ring->ready = false;
r600_dma_stop(rdev);
evergreen_irq_suspend(rdev);
radeon_wb_disable(rdev);
evergreen_pcie_gart_disable(rdev);
@ -3364,6 +3553,9 @@ int evergreen_init(struct radeon_device *rdev)
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@ -3376,6 +3568,7 @@ int evergreen_init(struct radeon_device *rdev)
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
r700_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);
@ -3403,6 +3596,7 @@ void evergreen_fini(struct radeon_device *rdev)
r600_audio_fini(rdev);
r600_blit_fini(rdev);
r700_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);

31
drivers/gpu/drm/radeon/evergreend.h
View file

@ -905,6 +905,37 @@
# define DC_HPDx_RX_INT_TIMER(x) ((x) << 16)
# define DC_HPDx_EN (1 << 28)
/* ASYNC DMA */
#define DMA_RB_RPTR 0xd008
#define DMA_RB_WPTR 0xd00c
#define DMA_CNTL 0xd02c
# define TRAP_ENABLE (1 << 0)
# define SEM_INCOMPLETE_INT_ENABLE (1 << 1)
# define SEM_WAIT_INT_ENABLE (1 << 2)
# define DATA_SWAP_ENABLE (1 << 3)
# define FENCE_SWAP_ENABLE (1 << 4)
# define CTXEMPTY_INT_ENABLE (1 << 28)
#define DMA_TILING_CONFIG 0xD0B8
#define CAYMAN_DMA1_CNTL 0xd82c
/* async DMA packets */
#define DMA_PACKET(cmd, t, s, n) ((((cmd) & 0xF) << 28) | \
(((t) & 0x1) << 23) | \
(((s) & 0x1) << 22) | \
(((n) & 0xFFFFF) << 0))
/* async DMA Packet types */
#define DMA_PACKET_WRITE 0x2
#define DMA_PACKET_COPY 0x3
#define DMA_PACKET_INDIRECT_BUFFER 0x4
#define DMA_PACKET_SEMAPHORE 0x5
#define DMA_PACKET_FENCE 0x6
#define DMA_PACKET_TRAP 0x7
#define DMA_PACKET_SRBM_WRITE 0x9
#define DMA_PACKET_CONSTANT_FILL 0xd
#define DMA_PACKET_NOP 0xf
/* PCIE link stuff */
#define PCIE_LC_TRAINING_CNTL 0xa1 /* PCIE_P */
#define PCIE_LC_LINK_WIDTH_CNTL 0xa2 /* PCIE_P */

337
drivers/gpu/drm/radeon/ni.c
View file

@ -611,6 +611,8 @@ static void cayman_gpu_init(struct radeon_device *rdev)
WREG32(GB_ADDR_CONFIG, gb_addr_config);
WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
WREG32(HDP_ADDR_CONFIG, gb_addr_config);
WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
tmp = gb_addr_config & NUM_PIPES_MASK;
tmp = r6xx_remap_render_backend(rdev, tmp,
@ -915,6 +917,7 @@ static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
WREG32(SCRATCH_UMSK, 0);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
}
}
@ -1128,6 +1131,181 @@ static int cayman_cp_resume(struct radeon_device *rdev)
return 0;
}
/*
* DMA
* Starting with R600, the GPU has an asynchronous
* DMA engine. The programming model is very similar
* to the 3D engine (ring buffer, IBs, etc.), but the
* DMA controller has it's own packet format that is
* different form the PM4 format used by the 3D engine.
* It supports copying data, writing embedded data,
* solid fills, and a number of other things. It also
* has support for tiling/detiling of buffers.
* Cayman and newer support two asynchronous DMA engines.
*/
/**
* cayman_dma_ring_ib_execute - Schedule an IB on the DMA engine
*
* @rdev: radeon_device pointer
* @ib: IB object to schedule
*
* Schedule an IB in the DMA ring (cayman-SI).
*/
void cayman_dma_ring_ib_execute(struct radeon_device *rdev,
struct radeon_ib *ib)
{
struct radeon_ring *ring = &rdev->ring[ib->ring];
if (rdev->wb.enabled) {
u32 next_rptr = ring->wptr + 4;
while ((next_rptr & 7) != 5)
next_rptr++;
next_rptr += 3;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
radeon_ring_write(ring, next_rptr);
}
/* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
* Pad as necessary with NOPs.
*/
while ((ring->wptr & 7) != 5)
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
radeon_ring_write(ring, DMA_IB_PACKET(DMA_PACKET_INDIRECT_BUFFER, ib->vm ? ib->vm->id : 0, 0));
radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
}
/**
* cayman_dma_stop - stop the async dma engines
*
* @rdev: radeon_device pointer
*
* Stop the async dma engines (cayman-SI).
*/
void cayman_dma_stop(struct radeon_device *rdev)
{
u32 rb_cntl;
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
/* dma0 */
rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
rb_cntl &= ~DMA_RB_ENABLE;
WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, rb_cntl);
/* dma1 */
rb_cntl = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
rb_cntl &= ~DMA_RB_ENABLE;
WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, rb_cntl);
rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
}
/**
* cayman_dma_resume - setup and start the async dma engines
*
* @rdev: radeon_device pointer
*
* Set up the DMA ring buffers and enable them. (cayman-SI).
* Returns 0 for success, error for failure.
*/
int cayman_dma_resume(struct radeon_device *rdev)
{
struct radeon_ring *ring;
u32 rb_cntl, dma_cntl;
u32 rb_bufsz;
u32 reg_offset, wb_offset;
int i, r;
/* Reset dma */
WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
RREG32(SRBM_SOFT_RESET);
udelay(50);
WREG32(SRBM_SOFT_RESET, 0);
for (i = 0; i < 2; i++) {
if (i == 0) {
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
reg_offset = DMA0_REGISTER_OFFSET;
wb_offset = R600_WB_DMA_RPTR_OFFSET;
} else {
ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
reg_offset = DMA1_REGISTER_OFFSET;
wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
}
WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
/* Set ring buffer size in dwords */
rb_bufsz = drm_order(ring->ring_size / 4);
rb_cntl = rb_bufsz << 1;
#ifdef __BIG_ENDIAN
rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
#endif
WREG32(DMA_RB_CNTL + reg_offset, rb_cntl);
/* Initialize the ring buffer's read and write pointers */
WREG32(DMA_RB_RPTR + reg_offset, 0);
WREG32(DMA_RB_WPTR + reg_offset, 0);
/* set the wb address whether it's enabled or not */
WREG32(DMA_RB_RPTR_ADDR_HI + reg_offset,
upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFF);
WREG32(DMA_RB_RPTR_ADDR_LO + reg_offset,
((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
if (rdev->wb.enabled)
rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
WREG32(DMA_RB_BASE + reg_offset, ring->gpu_addr >> 8);
/* enable DMA IBs */
WREG32(DMA_IB_CNTL + reg_offset, DMA_IB_ENABLE | CMD_VMID_FORCE);
dma_cntl = RREG32(DMA_CNTL + reg_offset);
dma_cntl &= ~CTXEMPTY_INT_ENABLE;
WREG32(DMA_CNTL + reg_offset, dma_cntl);
ring->wptr = 0;
WREG32(DMA_RB_WPTR + reg_offset, ring->wptr << 2);
ring->rptr = RREG32(DMA_RB_RPTR + reg_offset) >> 2;
WREG32(DMA_RB_CNTL + reg_offset, rb_cntl | DMA_RB_ENABLE);
ring->ready = true;
r = radeon_ring_test(rdev, ring->idx, ring);
if (r) {
ring->ready = false;
return r;
}
}
radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
return 0;
}
/**
* cayman_dma_fini - tear down the async dma engines
*
* @rdev: radeon_device pointer
*
* Stop the async dma engines and free the rings (cayman-SI).
*/
void cayman_dma_fini(struct radeon_device *rdev)
{
cayman_dma_stop(rdev);
radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
}
static int cayman_gpu_soft_reset(struct radeon_device *rdev)
{
struct evergreen_mc_save save;
@ -1218,6 +1396,32 @@ int cayman_asic_reset(struct radeon_device *rdev)
return cayman_gpu_soft_reset(rdev);
}
/**
* cayman_dma_is_lockup - Check if the DMA engine is locked up
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Check if the async DMA engine is locked up (cayman-SI).
* Returns true if the engine appears to be locked up, false if not.
*/
bool cayman_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 dma_status_reg;
if (ring->idx == R600_RING_TYPE_DMA_INDEX)
dma_status_reg = RREG32(DMA_STATUS_REG + DMA0_REGISTER_OFFSET);
else
dma_status_reg = RREG32(DMA_STATUS_REG + DMA1_REGISTER_OFFSET);
if (dma_status_reg & DMA_IDLE) {
radeon_ring_lockup_update(ring);
return false;
}
/* force ring activities */
radeon_ring_force_activity(rdev, ring);
return radeon_ring_test_lockup(rdev, ring);
}
static int cayman_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
@ -1299,6 +1503,18 @@ static int cayman_startup(struct radeon_device *rdev)
return r;
}
r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
/* Enable IRQ */
r = r600_irq_init(rdev);
if (r) {
@ -1313,6 +1529,23 @@ static int cayman_startup(struct radeon_device *rdev)
0, 0xfffff, RADEON_CP_PACKET2);
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR + DMA0_REGISTER_OFFSET,
DMA_RB_WPTR + DMA0_REGISTER_OFFSET,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;
ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, CAYMAN_WB_DMA1_RPTR_OFFSET,
DMA_RB_RPTR + DMA1_REGISTER_OFFSET,
DMA_RB_WPTR + DMA1_REGISTER_OFFSET,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;
r = cayman_cp_load_microcode(rdev);
if (r)
return r;
@ -1320,6 +1553,10 @@ static int cayman_startup(struct radeon_device *rdev)
if (r)
return r;
r = cayman_dma_resume(rdev);
if (r)
return r;
r = radeon_ib_pool_init(rdev);
if (r) {
dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
@ -1364,7 +1601,7 @@ int cayman_suspend(struct radeon_device *rdev)
{
r600_audio_fini(rdev);
cayman_cp_enable(rdev, false);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
cayman_dma_stop(rdev);
evergreen_irq_suspend(rdev);
radeon_wb_disable(rdev);
cayman_pcie_gart_disable(rdev);
@ -1431,6 +1668,14 @@ int cayman_init(struct radeon_device *rdev)
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 1024 * 1024);
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 64 * 1024);
ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 64 * 1024);
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@ -1443,6 +1688,7 @@ int cayman_init(struct radeon_device *rdev)
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
cayman_cp_fini(rdev);
cayman_dma_fini(rdev);
r600_irq_fini(rdev);
if (rdev->flags & RADEON_IS_IGP)
si_rlc_fini(rdev);
@ -1473,6 +1719,7 @@ void cayman_fini(struct radeon_device *rdev)
{
r600_blit_fini(rdev);
cayman_cp_fini(rdev);
cayman_dma_fini(rdev);
r600_irq_fini(rdev);
if (rdev->flags & RADEON_IS_IGP)
si_rlc_fini(rdev);
@ -1548,30 +1795,57 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
{
struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
uint64_t value;
unsigned ndw;
while (count) {
unsigned ndw = 1 + count * 2;
if (ndw > 0x3FFF)
ndw = 0x3FFF;
if (rdev->asic->vm.pt_ring_index == RADEON_RING_TYPE_GFX_INDEX) {
while (count) {
ndw = 1 + count * 2;
if (ndw > 0x3FFF)
ndw = 0x3FFF;
radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
for (; ndw > 1; ndw -= 2, --count, pe += 8) {
uint64_t value = 0;
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
addr += incr;
} else if (flags & RADEON_VM_PAGE_VALID) {
value = addr;
radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
for (; ndw > 1; ndw -= 2, --count, pe += 8) {
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
} else if (flags & RADEON_VM_PAGE_VALID) {
value = addr;
} else {
value = 0;
}
addr += incr;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
}
}
} else {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)
ndw = 0xFFFFE;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
/* for non-physically contiguous pages (system) */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
for (; ndw > 0; ndw -= 2, --count, pe += 8) {
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
} else if (flags & RADEON_VM_PAGE_VALID) {
value = addr;
} else {
value = 0;
}
addr += incr;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
}
}
}
}
@ -1606,3 +1880,26 @@ void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
radeon_ring_write(ring, 0x0);
}
void cayman_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
{
struct radeon_ring *ring = &rdev->ring[ridx];
if (vm == NULL)
return;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
/* flush hdp cache */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
radeon_ring_write(ring, 1);
/* bits 0-7 are the VM contexts0-7 */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
radeon_ring_write(ring, 1 << vm->id);
}

75
drivers/gpu/drm/radeon/nid.h
View file

@ -50,6 +50,24 @@
#define VMID(x) (((x) & 0x7) << 0)
#define SRBM_STATUS 0x0E50
#define SRBM_SOFT_RESET 0x0E60
#define SOFT_RESET_BIF (1 << 1)
#define SOFT_RESET_CG (1 << 2)
#define SOFT_RESET_DC (1 << 5)
#define SOFT_RESET_DMA1 (1 << 6)
#define SOFT_RESET_GRBM (1 << 8)
#define SOFT_RESET_HDP (1 << 9)
#define SOFT_RESET_IH (1 << 10)
#define SOFT_RESET_MC (1 << 11)
#define SOFT_RESET_RLC (1 << 13)
#define SOFT_RESET_ROM (1 << 14)
#define SOFT_RESET_SEM (1 << 15)
#define SOFT_RESET_VMC (1 << 17)
#define SOFT_RESET_DMA (1 << 20)
#define SOFT_RESET_TST (1 << 21)
#define SOFT_RESET_REGBB (1 << 22)
#define SOFT_RESET_ORB (1 << 23)
#define VM_CONTEXT0_REQUEST_RESPONSE 0x1470
#define REQUEST_TYPE(x) (((x) & 0xf) << 0)
#define RESPONSE_TYPE_MASK 0x000000F0
@ -599,5 +617,62 @@
#define PACKET3_SET_APPEND_CNT 0x75
#define PACKET3_ME_WRITE 0x7A
/* ASYNC DMA - first instance at 0xd000, second at 0xd800 */
#define DMA0_REGISTER_OFFSET 0x0 /* not a register */
#define DMA1_REGISTER_OFFSET 0x800 /* not a register */
#define DMA_RB_CNTL 0xd000
# define DMA_RB_ENABLE (1 << 0)
# define DMA_RB_SIZE(x) ((x) << 1) /* log2 */
# define DMA_RB_SWAP_ENABLE (1 << 9) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_ENABLE (1 << 12)
# define DMA_RPTR_WRITEBACK_SWAP_ENABLE (1 << 13) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_TIMER(x) ((x) << 16) /* log2 */
#define DMA_RB_BASE 0xd004
#define DMA_RB_RPTR 0xd008
#define DMA_RB_WPTR 0xd00c
#define DMA_RB_RPTR_ADDR_HI 0xd01c
#define DMA_RB_RPTR_ADDR_LO 0xd020
#define DMA_IB_CNTL 0xd024
# define DMA_IB_ENABLE (1 << 0)
# define DMA_IB_SWAP_ENABLE (1 << 4)
# define CMD_VMID_FORCE (1 << 31)
#define DMA_IB_RPTR 0xd028
#define DMA_CNTL 0xd02c
# define TRAP_ENABLE (1 << 0)
# define SEM_INCOMPLETE_INT_ENABLE (1 << 1)
# define SEM_WAIT_INT_ENABLE (1 << 2)
# define DATA_SWAP_ENABLE (1 << 3)
# define FENCE_SWAP_ENABLE (1 << 4)
# define CTXEMPTY_INT_ENABLE (1 << 28)
#define DMA_STATUS_REG 0xd034
# define DMA_IDLE (1 << 0)
#define DMA_SEM_INCOMPLETE_TIMER_CNTL 0xd044
#define DMA_SEM_WAIT_FAIL_TIMER_CNTL 0xd048
#define DMA_TILING_CONFIG 0xd0b8
#define DMA_MODE 0xd0bc
#define DMA_PACKET(cmd, t, s, n) ((((cmd) & 0xF) << 28) | \
(((t) & 0x1) << 23) | \
(((s) & 0x1) << 22) | \
(((n) & 0xFFFFF) << 0))
#define DMA_IB_PACKET(cmd, vmid, n) ((((cmd) & 0xF) << 28) | \
(((vmid) & 0xF) << 20) | \
(((n) & 0xFFFFF) << 0))
/* async DMA Packet types */
#define DMA_PACKET_WRITE 0x2
#define DMA_PACKET_COPY 0x3
#define DMA_PACKET_INDIRECT_BUFFER 0x4
#define DMA_PACKET_SEMAPHORE 0x5
#define DMA_PACKET_FENCE 0x6
#define DMA_PACKET_TRAP 0x7
#define DMA_PACKET_SRBM_WRITE 0x9
#define DMA_PACKET_CONSTANT_FILL 0xd
#define DMA_PACKET_NOP 0xf
#endif

473
drivers/gpu/drm/radeon/r600.c
View file

@ -1370,6 +1370,29 @@ bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
return radeon_ring_test_lockup(rdev, ring);
}
/**
* r600_dma_is_lockup - Check if the DMA engine is locked up
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Check if the async DMA engine is locked up (r6xx-evergreen).
* Returns true if the engine appears to be locked up, false if not.
*/
bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
{
u32 dma_status_reg;
dma_status_reg = RREG32(DMA_STATUS_REG);
if (dma_status_reg & DMA_IDLE) {
radeon_ring_lockup_update(ring);
return false;
}
/* force ring activities */
radeon_ring_force_activity(rdev, ring);
return radeon_ring_test_lockup(rdev, ring);
}
int r600_asic_reset(struct radeon_device *rdev)
{
return r600_gpu_soft_reset(rdev);
@ -1588,6 +1611,7 @@ static void r600_gpu_init(struct radeon_device *rdev)
WREG32(GB_TILING_CONFIG, tiling_config);
WREG32(DCP_TILING_CONFIG, tiling_config & 0xffff);
WREG32(HDP_TILING_CONFIG, tiling_config & 0xffff);
WREG32(DMA_TILING_CONFIG, tiling_config & 0xffff);
tmp = R6XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & INACTIVE_QD_PIPES_MASK) >> 8);
WREG32(VGT_OUT_DEALLOC_CNTL, (tmp * 4) & DEALLOC_DIST_MASK);
@ -1865,6 +1889,7 @@ void r600_cp_stop(struct radeon_device *rdev)
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
WREG32(R_0086D8_CP_ME_CNTL, S_0086D8_CP_ME_HALT(1));
WREG32(SCRATCH_UMSK, 0);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
}
int r600_init_microcode(struct radeon_device *rdev)
@ -2190,6 +2215,128 @@ void r600_cp_fini(struct radeon_device *rdev)
radeon_scratch_free(rdev, ring->rptr_save_reg);
}
/*
* DMA
* Starting with R600, the GPU has an asynchronous
* DMA engine. The programming model is very similar
* to the 3D engine (ring buffer, IBs, etc.), but the
* DMA controller has it's own packet format that is
* different form the PM4 format used by the 3D engine.
* It supports copying data, writing embedded data,
* solid fills, and a number of other things. It also
* has support for tiling/detiling of buffers.
*/
/**
* r600_dma_stop - stop the async dma engine
*
* @rdev: radeon_device pointer
*
* Stop the async dma engine (r6xx-evergreen).
*/
void r600_dma_stop(struct radeon_device *rdev)
{
u32 rb_cntl = RREG32(DMA_RB_CNTL);
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
rb_cntl &= ~DMA_RB_ENABLE;
WREG32(DMA_RB_CNTL, rb_cntl);
rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
}
/**
* r600_dma_resume - setup and start the async dma engine
*
* @rdev: radeon_device pointer
*
* Set up the DMA ring buffer and enable it. (r6xx-evergreen).
* Returns 0 for success, error for failure.
*/
int r600_dma_resume(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
u32 rb_cntl, dma_cntl;
u32 rb_bufsz;
int r;
/* Reset dma */
if (rdev->family >= CHIP_RV770)
WREG32(SRBM_SOFT_RESET, RV770_SOFT_RESET_DMA);
else
WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA);
RREG32(SRBM_SOFT_RESET);
udelay(50);
WREG32(SRBM_SOFT_RESET, 0);
WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL, 0);
WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL, 0);
/* Set ring buffer size in dwords */
rb_bufsz = drm_order(ring->ring_size / 4);
rb_cntl = rb_bufsz << 1;
#ifdef __BIG_ENDIAN
rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
#endif
WREG32(DMA_RB_CNTL, rb_cntl);
/* Initialize the ring buffer's read and write pointers */
WREG32(DMA_RB_RPTR, 0);
WREG32(DMA_RB_WPTR, 0);
/* set the wb address whether it's enabled or not */
WREG32(DMA_RB_RPTR_ADDR_HI,
upper_32_bits(rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFF);
WREG32(DMA_RB_RPTR_ADDR_LO,
((rdev->wb.gpu_addr + R600_WB_DMA_RPTR_OFFSET) & 0xFFFFFFFC));
if (rdev->wb.enabled)
rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
WREG32(DMA_RB_BASE, ring->gpu_addr >> 8);
/* enable DMA IBs */
WREG32(DMA_IB_CNTL, DMA_IB_ENABLE);
dma_cntl = RREG32(DMA_CNTL);
dma_cntl &= ~CTXEMPTY_INT_ENABLE;
WREG32(DMA_CNTL, dma_cntl);
if (rdev->family >= CHIP_RV770)
WREG32(DMA_MODE, 1);
ring->wptr = 0;
WREG32(DMA_RB_WPTR, ring->wptr << 2);
ring->rptr = RREG32(DMA_RB_RPTR) >> 2;
WREG32(DMA_RB_CNTL, rb_cntl | DMA_RB_ENABLE);
ring->ready = true;
r = radeon_ring_test(rdev, R600_RING_TYPE_DMA_INDEX, ring);
if (r) {
ring->ready = false;
return r;
}
radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
return 0;
}
/**
* r600_dma_fini - tear down the async dma engine
*
* @rdev: radeon_device pointer
*
* Stop the async dma engine and free the ring (r6xx-evergreen).
*/
void r600_dma_fini(struct radeon_device *rdev)
{
r600_dma_stop(rdev);
radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
}
/*
* GPU scratch registers helpers function.
@ -2246,6 +2393,64 @@ int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
return r;
}
/**
* r600_dma_ring_test - simple async dma engine test
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Test the DMA engine by writing using it to write an
* value to memory. (r6xx-SI).
* Returns 0 for success, error for failure.
*/
int r600_dma_ring_test(struct radeon_device *rdev,
struct radeon_ring *ring)
{
unsigned i;
int r;
void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
u32 tmp;
if (!ptr) {
DRM_ERROR("invalid vram scratch pointer\n");
return -EINVAL;
}
tmp = 0xCAFEDEAD;
writel(tmp, ptr);
r = radeon_ring_lock(rdev, ring, 4);
if (r) {
DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
return r;
}
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
radeon_ring_write(ring, rdev->vram_scratch.gpu_addr & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff);
radeon_ring_write(ring, 0xDEADBEEF);
radeon_ring_unlock_commit(rdev, ring);
for (i = 0; i < rdev->usec_timeout; i++) {
tmp = readl(ptr);
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;
}
/*
* CP fences/semaphores
*/
void r600_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
@ -2309,6 +2514,58 @@ void r600_semaphore_ring_emit(struct radeon_device *rdev,
radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
}
/*
* DMA fences/semaphores
*/
/**
* r600_dma_fence_ring_emit - emit a fence on the DMA ring
*
* @rdev: radeon_device pointer
* @fence: radeon fence object
*
* Add a DMA fence packet to the ring to write
* the fence seq number and DMA trap packet to generate
* an interrupt if needed (r6xx-r7xx).
*/
void r600_dma_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence)
{
struct radeon_ring *ring = &rdev->ring[fence->ring];
u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
/* write the fence */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_FENCE, 0, 0, 0));
radeon_ring_write(ring, addr & 0xfffffffc);
radeon_ring_write(ring, (upper_32_bits(addr) & 0xff));
radeon_ring_write(ring, fence->seq);
/* generate an interrupt */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0, 0));
}
/**
* r600_dma_semaphore_ring_emit - emit a semaphore on the dma ring
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
* @semaphore: radeon semaphore object
* @emit_wait: wait or signal semaphore
*
* Add a DMA semaphore packet to the ring wait on or signal
* other rings (r6xx-SI).
*/
void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
struct radeon_ring *ring,
struct radeon_semaphore *semaphore,
bool emit_wait)
{
u64 addr = semaphore->gpu_addr;
u32 s = emit_wait ? 0 : 1;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SEMAPHORE, 0, s, 0));
radeon_ring_write(ring, addr & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(addr) & 0xff);
}
int r600_copy_blit(struct radeon_device *rdev,
uint64_t src_offset,
uint64_t dst_offset,
@ -2328,6 +2585,80 @@ int r600_copy_blit(struct radeon_device *rdev,
return 0;
}
/**
* r600_copy_dma - copy pages using the DMA engine
*
* @rdev: radeon_device pointer
* @src_offset: src GPU address
* @dst_offset: dst GPU address
* @num_gpu_pages: number of GPU pages to xfer
* @fence: radeon fence object
*
* Copy GPU paging using the DMA engine (r6xx-r7xx).
* Used by the radeon ttm implementation to move pages if
* registered as the asic copy callback.
*/
int r600_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages,
struct radeon_fence **fence)
{
struct radeon_semaphore *sem = NULL;
int ring_index = rdev->asic->copy.dma_ring_index;
struct radeon_ring *ring = &rdev->ring[ring_index];
u32 size_in_dw, cur_size_in_dw;
int i, num_loops;
int r = 0;
r = radeon_semaphore_create(rdev, &sem);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
return r;
}
size_in_dw = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT) / 4;
num_loops = DIV_ROUND_UP(size_in_dw, 0xffff);
r = radeon_ring_lock(rdev, ring, num_loops * 5 + 8);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
radeon_semaphore_free(rdev, &sem, NULL);
return r;
}
if (radeon_fence_need_sync(*fence, ring->idx)) {
radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
ring->idx);
radeon_fence_note_sync(*fence, ring->idx);
} else {
radeon_semaphore_free(rdev, &sem, NULL);
}
for (i = 0; i < num_loops; i++) {
cur_size_in_dw = size_in_dw;
if (cur_size_in_dw > 0xFFFF)
cur_size_in_dw = 0xFFFF;
size_in_dw -= cur_size_in_dw;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 0, 0, cur_size_in_dw));
radeon_ring_write(ring, dst_offset & 0xfffffffc);
radeon_ring_write(ring, src_offset & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
src_offset += cur_size_in_dw * 4;
dst_offset += cur_size_in_dw * 4;
}
r = radeon_fence_emit(rdev, fence, ring->idx);
if (r) {
radeon_ring_unlock_undo(rdev, ring);
return r;
}
radeon_ring_unlock_commit(rdev, ring);
radeon_semaphore_free(rdev, &sem, *fence);
return r;
}
int r600_set_surface_reg(struct radeon_device *rdev, int reg,
uint32_t tiling_flags, uint32_t pitch,
uint32_t offset, uint32_t obj_size)
@ -2343,7 +2674,7 @@ void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
static int r600_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
struct radeon_ring *ring;
int r;
/* enable pcie gen2 link */
@ -2388,6 +2719,12 @@ static int r600_startup(struct radeon_device *rdev)
return r;
}
r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
/* Enable IRQ */
r = r600_irq_init(rdev);
if (r) {
@ -2397,12 +2734,20 @@ static int r600_startup(struct radeon_device *rdev)
}
r600_irq_set(rdev);
ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
R600_CP_RB_RPTR, R600_CP_RB_WPTR,
0, 0xfffff, RADEON_CP_PACKET2);
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR, DMA_RB_WPTR,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;
r = r600_cp_load_microcode(rdev);
if (r)
return r;
@ -2410,6 +2755,10 @@ static int r600_startup(struct radeon_device *rdev)
if (r)
return r;
r = r600_dma_resume(rdev);
if (r)
return r;
r = radeon_ib_pool_init(rdev);
if (r) {
dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
@ -2465,7 +2814,7 @@ int r600_suspend(struct radeon_device *rdev)
{
r600_audio_fini(rdev);
r600_cp_stop(rdev);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
r600_dma_stop(rdev);
r600_irq_suspend(rdev);
radeon_wb_disable(rdev);
r600_pcie_gart_disable(rdev);
@ -2538,6 +2887,9 @@ int r600_init(struct radeon_device *rdev)
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@ -2550,6 +2902,7 @@ int r600_init(struct radeon_device *rdev)
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
r600_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);
@ -2566,6 +2919,7 @@ void r600_fini(struct radeon_device *rdev)
r600_audio_fini(rdev);
r600_blit_fini(rdev);
r600_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);
@ -2668,6 +3022,104 @@ int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
return r;
}
/**
* r600_dma_ib_test - test an IB on the DMA engine
*
* @rdev: radeon_device pointer
* @ring: radeon_ring structure holding ring information
*
* Test a simple IB in the DMA ring (r6xx-SI).
* Returns 0 on success, error on failure.
*/
int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
{
struct radeon_ib ib;
unsigned i;
int r;
void __iomem *ptr = (void *)rdev->vram_scratch.ptr;
u32 tmp = 0;
if (!ptr) {
DRM_ERROR("invalid vram scratch pointer\n");
return -EINVAL;
}
tmp = 0xCAFEDEAD;
writel(tmp, ptr);
r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256);
if (r) {
DRM_ERROR("radeon: failed to get ib (%d).\n", r);
return r;
}
ib.ptr[0] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1);
ib.ptr[1] = rdev->vram_scratch.gpu_addr & 0xfffffffc;
ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr) & 0xff;
ib.ptr[3] = 0xDEADBEEF;
ib.length_dw = 4;
r = radeon_ib_schedule(rdev, &ib, NULL);
if (r) {
radeon_ib_free(rdev, &ib);
DRM_ERROR("radeon: failed to schedule ib (%d).\n", r);
return r;
}
r = radeon_fence_wait(ib.fence, false);
if (r) {
DRM_ERROR("radeon: fence wait failed (%d).\n", r);
return r;
}
for (i = 0; i < rdev->usec_timeout; i++) {
tmp = readl(ptr);
if (tmp == 0xDEADBEEF)
break;
DRM_UDELAY(1);
}
if (i < rdev->usec_timeout) {
DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i);
} else {
DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp);
r = -EINVAL;
}
radeon_ib_free(rdev, &ib);
return r;
}
/**
* r600_dma_ring_ib_execute - Schedule an IB on the DMA engine
*
* @rdev: radeon_device pointer
* @ib: IB object to schedule
*
* Schedule an IB in the DMA ring (r6xx-r7xx).
*/
void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
{
struct radeon_ring *ring = &rdev->ring[ib->ring];
if (rdev->wb.enabled) {
u32 next_rptr = ring->wptr + 4;
while ((next_rptr & 7) != 5)
next_rptr++;
next_rptr += 3;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
radeon_ring_write(ring, next_rptr);
}
/* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
* Pad as necessary with NOPs.
*/
while ((ring->wptr & 7) != 5)
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_INDIRECT_BUFFER, 0, 0, 0));
radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
radeon_ring_write(ring, (ib->length_dw << 16) | (upper_32_bits(ib->gpu_addr) & 0xFF));
}
/*
* Interrupts
*
@ -2859,6 +3311,8 @@ static void r600_disable_interrupt_state(struct radeon_device *rdev)
u32 tmp;
WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
tmp = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
WREG32(DMA_CNTL, tmp);
WREG32(GRBM_INT_CNTL, 0);
WREG32(DxMODE_INT_MASK, 0);
WREG32(D1GRPH_INTERRUPT_CONTROL, 0);
@ -3000,6 +3454,7 @@ int r600_irq_set(struct radeon_device *rdev)
u32 grbm_int_cntl = 0;
u32 hdmi0, hdmi1;
u32 d1grph = 0, d2grph = 0;
u32 dma_cntl;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
@ -3034,12 +3489,19 @@ int r600_irq_set(struct radeon_device *rdev)
hdmi0 = RREG32(HDMI0_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
hdmi1 = RREG32(HDMI1_AUDIO_PACKET_CONTROL) & ~HDMI0_AZ_FORMAT_WTRIG_MASK;
}
dma_cntl = RREG32(DMA_CNTL) & ~TRAP_ENABLE;
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
DRM_DEBUG("r600_irq_set: sw int\n");
cp_int_cntl |= RB_INT_ENABLE;
cp_int_cntl |= TIME_STAMP_INT_ENABLE;
}
if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
DRM_DEBUG("r600_irq_set: sw int dma\n");
dma_cntl |= TRAP_ENABLE;
}
if (rdev->irq.crtc_vblank_int[0] ||
atomic_read(&rdev->irq.pflip[0])) {
DRM_DEBUG("r600_irq_set: vblank 0\n");
@ -3084,6 +3546,7 @@ int r600_irq_set(struct radeon_device *rdev)
}
WREG32(CP_INT_CNTL, cp_int_cntl);
WREG32(DMA_CNTL, dma_cntl);
WREG32(DxMODE_INT_MASK, mode_int);
WREG32(D1GRPH_INTERRUPT_CONTROL, d1grph);
WREG32(D2GRPH_INTERRUPT_CONTROL, d2grph);
@ -3463,6 +3926,10 @@ int r600_irq_process(struct radeon_device *rdev)
DRM_DEBUG("IH: CP EOP\n");
radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
break;
case 224: /* DMA trap event */
DRM_DEBUG("IH: DMA trap\n");
radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
break;
case 233: /* GUI IDLE */
DRM_DEBUG("IH: GUI idle\n");
break;

54
drivers/gpu/drm/radeon/r600d.h
View file

@ -590,9 +590,59 @@
#define WAIT_2D_IDLECLEAN_bit (1 << 16)
#define WAIT_3D_IDLECLEAN_bit (1 << 17)
/* async DMA */
#define DMA_TILING_CONFIG 0x3ec4
#define DMA_CONFIG 0x3e4c
#define DMA_RB_CNTL 0xd000
# define DMA_RB_ENABLE (1 << 0)
# define DMA_RB_SIZE(x) ((x) << 1) /* log2 */
# define DMA_RB_SWAP_ENABLE (1 << 9) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_ENABLE (1 << 12)
# define DMA_RPTR_WRITEBACK_SWAP_ENABLE (1 << 13) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_TIMER(x) ((x) << 16) /* log2 */
#define DMA_RB_BASE 0xd004
#define DMA_RB_RPTR 0xd008
#define DMA_RB_WPTR 0xd00c
#define DMA_RB_RPTR_ADDR_HI 0xd01c
#define DMA_RB_RPTR_ADDR_LO 0xd020
#define DMA_IB_CNTL 0xd024
# define DMA_IB_ENABLE (1 << 0)
# define DMA_IB_SWAP_ENABLE (1 << 4)
#define DMA_IB_RPTR 0xd028
#define DMA_CNTL 0xd02c
# define TRAP_ENABLE (1 << 0)
# define SEM_INCOMPLETE_INT_ENABLE (1 << 1)
# define SEM_WAIT_INT_ENABLE (1 << 2)
# define DATA_SWAP_ENABLE (1 << 3)
# define FENCE_SWAP_ENABLE (1 << 4)
# define CTXEMPTY_INT_ENABLE (1 << 28)
#define DMA_STATUS_REG 0xd034
# define DMA_IDLE (1 << 0)
#define DMA_SEM_INCOMPLETE_TIMER_CNTL 0xd044
#define DMA_SEM_WAIT_FAIL_TIMER_CNTL 0xd048
#define DMA_MODE 0xd0bc
/* async DMA packets */
#define DMA_PACKET(cmd, t, s, n) ((((cmd) & 0xF) << 28) | \
(((t) & 0x1) << 23) | \
(((s) & 0x1) << 22) | \
(((n) & 0xFFFF) << 0))
/* async DMA Packet types */
#define DMA_PACKET_WRITE 0x2
#define DMA_PACKET_COPY 0x3
#define DMA_PACKET_INDIRECT_BUFFER 0x4
#define DMA_PACKET_SEMAPHORE 0x5
#define DMA_PACKET_FENCE 0x6
#define DMA_PACKET_TRAP 0x7
#define DMA_PACKET_CONSTANT_FILL 0xd /* 7xx only */
#define DMA_PACKET_NOP 0xf
#define IH_RB_CNTL 0x3e00
# define IH_RB_ENABLE (1 << 0)
# define IH_IB_SIZE(x) ((x) << 1) /* log2 */
# define IH_RB_SIZE(x) ((x) << 1) /* log2 */
# define IH_RB_FULL_DRAIN_ENABLE (1 << 6)
# define IH_WPTR_WRITEBACK_ENABLE (1 << 8)
# define IH_WPTR_WRITEBACK_TIMER(x) ((x) << 9) /* log2 */
@ -637,7 +687,9 @@
#define TN_RLC_CLEAR_STATE_RESTORE_BASE 0x3f20
#define SRBM_SOFT_RESET 0xe60
# define SOFT_RESET_DMA (1 << 12)
# define SOFT_RESET_RLC (1 << 13)
# define RV770_SOFT_RESET_DMA (1 << 20)
#define CP_INT_CNTL 0xc124
# define CNTX_BUSY_INT_ENABLE (1 << 19)

18
drivers/gpu/drm/radeon/radeon.h
View file

@ -109,7 +109,7 @@ extern int radeon_lockup_timeout;
#define RADEON_BIOS_NUM_SCRATCH 8
/* max number of rings */
#define RADEON_NUM_RINGS 3
#define RADEON_NUM_RINGS 5
/* fence seq are set to this number when signaled */
#define RADEON_FENCE_SIGNALED_SEQ 0LL
@ -122,6 +122,11 @@ extern int radeon_lockup_timeout;
#define CAYMAN_RING_TYPE_CP1_INDEX 1
#define CAYMAN_RING_TYPE_CP2_INDEX 2
/* R600+ has an async dma ring */
#define R600_RING_TYPE_DMA_INDEX 3
/* cayman add a second async dma ring */
#define CAYMAN_RING_TYPE_DMA1_INDEX 4
/* hardcode those limit for now */
#define RADEON_VA_IB_OFFSET (1 << 20)
#define RADEON_VA_RESERVED_SIZE (8 << 20)
@ -787,6 +792,15 @@ int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *cp, unsigne
void radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *cp);
/* r600 async dma */
void r600_dma_stop(struct radeon_device *rdev);
int r600_dma_resume(struct radeon_device *rdev);
void r600_dma_fini(struct radeon_device *rdev);
void cayman_dma_stop(struct radeon_device *rdev);
int cayman_dma_resume(struct radeon_device *rdev);
void cayman_dma_fini(struct radeon_device *rdev);
/*
* CS.
*/
@ -883,7 +897,9 @@ struct radeon_wb {
#define RADEON_WB_CP_RPTR_OFFSET 1024
#define RADEON_WB_CP1_RPTR_OFFSET 1280
#define RADEON_WB_CP2_RPTR_OFFSET 1536
#define R600_WB_DMA_RPTR_OFFSET 1792
#define R600_WB_IH_WPTR_OFFSET 2048
#define CAYMAN_WB_DMA1_RPTR_OFFSET 2304
#define R600_WB_EVENT_OFFSET 3072
/**

192
drivers/gpu/drm/radeon/radeon_asic.c
View file

@ -947,6 +947,15 @@ static struct radeon_asic r600_asic = {
.ring_test = &r600_ring_test,
.ib_test = &r600_ib_test,
.is_lockup = &r600_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &r600_dma_ring_ib_execute,
.emit_fence = &r600_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
@ -963,10 +972,10 @@ static struct radeon_asic r600_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &r600_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &r600_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1022,6 +1031,15 @@ static struct radeon_asic rs780_asic = {
.ring_test = &r600_ring_test,
.ib_test = &r600_ib_test,
.is_lockup = &r600_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &r600_dma_ring_ib_execute,
.emit_fence = &r600_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
@ -1038,10 +1056,10 @@ static struct radeon_asic rs780_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &r600_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &r600_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1097,6 +1115,15 @@ static struct radeon_asic rv770_asic = {
.ring_test = &r600_ring_test,
.ib_test = &r600_ib_test,
.is_lockup = &r600_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &r600_dma_ring_ib_execute,
.emit_fence = &r600_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
@ -1113,10 +1140,10 @@ static struct radeon_asic rv770_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &r600_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &r600_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1172,6 +1199,15 @@ static struct radeon_asic evergreen_asic = {
.ring_test = &r600_ring_test,
.ib_test = &r600_ib_test,
.is_lockup = &evergreen_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &evergreen_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
@ -1188,10 +1224,10 @@ static struct radeon_asic evergreen_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &evergreen_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &evergreen_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1248,6 +1284,15 @@ static struct radeon_asic sumo_asic = {
.ib_test = &r600_ib_test,
.is_lockup = &evergreen_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &evergreen_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
.set = &evergreen_irq_set,
@ -1263,10 +1308,10 @@ static struct radeon_asic sumo_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &evergreen_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &evergreen_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1322,6 +1367,15 @@ static struct radeon_asic btc_asic = {
.ring_test = &r600_ring_test,
.ib_test = &r600_ib_test,
.is_lockup = &evergreen_gpu_is_lockup,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &evergreen_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &r600_dma_is_lockup,
}
},
.irq = {
@ -1338,10 +1392,10 @@ static struct radeon_asic btc_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &evergreen_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &evergreen_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1391,7 +1445,7 @@ static struct radeon_asic cayman_asic = {
.vm = {
.init = &cayman_vm_init,
.fini = &cayman_vm_fini,
.pt_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.pt_ring_index = R600_RING_TYPE_DMA_INDEX,
.set_page = &cayman_vm_set_page,
},
.ring = {
@ -1427,6 +1481,26 @@ static struct radeon_asic cayman_asic = {
.ib_test = &r600_ib_test,
.is_lockup = &evergreen_gpu_is_lockup,
.vm_flush = &cayman_vm_flush,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &cayman_dma_vm_flush,
},
[CAYMAN_RING_TYPE_DMA1_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &cayman_dma_vm_flush,
}
},
.irq = {
@ -1443,10 +1517,10 @@ static struct radeon_asic cayman_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &evergreen_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &evergreen_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1496,7 +1570,7 @@ static struct radeon_asic trinity_asic = {
.vm = {
.init = &cayman_vm_init,
.fini = &cayman_vm_fini,
.pt_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.pt_ring_index = R600_RING_TYPE_DMA_INDEX,
.set_page = &cayman_vm_set_page,
},
.ring = {
@ -1532,6 +1606,26 @@ static struct radeon_asic trinity_asic = {
.ib_test = &r600_ib_test,
.is_lockup = &evergreen_gpu_is_lockup,
.vm_flush = &cayman_vm_flush,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &cayman_dma_vm_flush,
},
[CAYMAN_RING_TYPE_DMA1_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &cayman_dma_vm_flush,
}
},
.irq = {
@ -1548,10 +1642,10 @@ static struct radeon_asic trinity_asic = {
.copy = {
.blit = &r600_copy_blit,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = &r600_copy_blit,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &evergreen_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &evergreen_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,
@ -1601,7 +1695,7 @@ static struct radeon_asic si_asic = {
.vm = {
.init = &si_vm_init,
.fini = &si_vm_fini,
.pt_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.pt_ring_index = R600_RING_TYPE_DMA_INDEX,
.set_page = &si_vm_set_page,
},
.ring = {
@ -1637,6 +1731,26 @@ static struct radeon_asic si_asic = {
.ib_test = &r600_ib_test,
.is_lockup = &si_gpu_is_lockup,
.vm_flush = &si_vm_flush,
},
[R600_RING_TYPE_DMA_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &si_dma_vm_flush,
},
[CAYMAN_RING_TYPE_DMA1_INDEX] = {
.ib_execute = &cayman_dma_ring_ib_execute,
.emit_fence = &evergreen_dma_fence_ring_emit,
.emit_semaphore = &r600_dma_semaphore_ring_emit,
.cs_parse = NULL,
.ring_test = &r600_dma_ring_test,
.ib_test = &r600_dma_ib_test,
.is_lockup = &cayman_dma_is_lockup,
.vm_flush = &si_dma_vm_flush,
}
},
.irq = {
@ -1653,10 +1767,10 @@ static struct radeon_asic si_asic = {
.copy = {
.blit = NULL,
.blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = NULL,
.dma_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.copy = NULL,
.copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
.dma = &si_copy_dma,
.dma_ring_index = R600_RING_TYPE_DMA_INDEX,
.copy = &si_copy_dma,
.copy_ring_index = R600_RING_TYPE_DMA_INDEX,
},
.surface = {
.set_reg = r600_set_surface_reg,

30
drivers/gpu/drm/radeon/radeon_asic.h
View file

@ -309,6 +309,14 @@ void r600_semaphore_ring_emit(struct radeon_device *rdev,
struct radeon_ring *cp,
struct radeon_semaphore *semaphore,
bool emit_wait);
void r600_dma_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence);
void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
struct radeon_ring *ring,
struct radeon_semaphore *semaphore,
bool emit_wait);
void r600_dma_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
bool r600_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring);
bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
int r600_asic_reset(struct radeon_device *rdev);
int r600_set_surface_reg(struct radeon_device *rdev, int reg,
@ -316,11 +324,16 @@ int r600_set_surface_reg(struct radeon_device *rdev, int reg,
uint32_t offset, uint32_t obj_size);
void r600_clear_surface_reg(struct radeon_device *rdev, int reg);
int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);
int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);
void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
int r600_dma_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
int r600_copy_blit(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages, struct radeon_fence **fence);
int r600_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages, struct radeon_fence **fence);
void r600_hpd_init(struct radeon_device *rdev);
void r600_hpd_fini(struct radeon_device *rdev);
bool r600_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd);
@ -428,6 +441,14 @@ extern void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc);
void evergreen_disable_interrupt_state(struct radeon_device *rdev);
int evergreen_blit_init(struct radeon_device *rdev);
int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
void evergreen_dma_fence_ring_emit(struct radeon_device *rdev,
struct radeon_fence *fence);
void evergreen_dma_ring_ib_execute(struct radeon_device *rdev,
struct radeon_ib *ib);
int evergreen_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages,
struct radeon_fence **fence);
/*
* cayman
@ -449,6 +470,10 @@ void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
uint64_t addr, unsigned count,
uint32_t incr, uint32_t flags);
int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
void cayman_dma_ring_ib_execute(struct radeon_device *rdev,
struct radeon_ib *ib);
bool cayman_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring);
void cayman_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
/* DCE6 - SI */
void dce6_bandwidth_update(struct radeon_device *rdev);
@ -476,5 +501,10 @@ void si_vm_set_page(struct radeon_device *rdev, uint64_t pe,
void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
int si_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
uint64_t si_get_gpu_clock(struct radeon_device *rdev);
int si_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages,
struct radeon_fence **fence);
void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
#endif

37
drivers/gpu/drm/radeon/radeon_test.c
View file

@ -26,16 +26,31 @@
#include "radeon_reg.h"
#include "radeon.h"
#define RADEON_TEST_COPY_BLIT 1
#define RADEON_TEST_COPY_DMA 0
/* Test BO GTT->VRAM and VRAM->GTT GPU copies across the whole GTT aperture */
void radeon_test_moves(struct radeon_device *rdev)
static void radeon_do_test_moves(struct radeon_device *rdev, int flag)
{
struct radeon_bo *vram_obj = NULL;
struct radeon_bo **gtt_obj = NULL;
struct radeon_fence *fence = NULL;
uint64_t gtt_addr, vram_addr;
unsigned i, n, size;
int r;
int r, ring;
switch (flag) {
case RADEON_TEST_COPY_DMA:
ring = radeon_copy_dma_ring_index(rdev);
break;
case RADEON_TEST_COPY_BLIT:
ring = radeon_copy_blit_ring_index(rdev);
break;
default:
DRM_ERROR("Unknown copy method\n");
return;
}
size = 1024 * 1024;
@ -106,7 +121,10 @@ void radeon_test_moves(struct radeon_device *rdev)
radeon_bo_kunmap(gtt_obj[i]);
r = radeon_copy(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
if (ring == R600_RING_TYPE_DMA_INDEX)
r = radeon_copy_dma(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
else
r = radeon_copy_blit(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
if (r) {
DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
goto out_cleanup;
@ -149,7 +167,10 @@ void radeon_test_moves(struct radeon_device *rdev)
radeon_bo_kunmap(vram_obj);
r = radeon_copy(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
if (ring == R600_RING_TYPE_DMA_INDEX)
r = radeon_copy_dma(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
else
r = radeon_copy_blit(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, &fence);
if (r) {
DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
goto out_cleanup;
@ -223,6 +244,14 @@ void radeon_test_moves(struct radeon_device *rdev)
}
}
void radeon_test_moves(struct radeon_device *rdev)
{
if (rdev->asic->copy.dma)
radeon_do_test_moves(rdev, RADEON_TEST_COPY_DMA);
if (rdev->asic->copy.blit)
radeon_do_test_moves(rdev, RADEON_TEST_COPY_BLIT);
}
void radeon_test_ring_sync(struct radeon_device *rdev,
struct radeon_ring *ringA,
struct radeon_ring *ringB)

31
drivers/gpu/drm/radeon/rv770.c
View file

@ -316,6 +316,7 @@ void r700_cp_stop(struct radeon_device *rdev)
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
WREG32(SCRATCH_UMSK, 0);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
}
static int rv770_cp_load_microcode(struct radeon_device *rdev)
@ -583,6 +584,8 @@ static void rv770_gpu_init(struct radeon_device *rdev)
WREG32(GB_TILING_CONFIG, gb_tiling_config);
WREG32(DCP_TILING_CONFIG, (gb_tiling_config & 0xffff));
WREG32(HDP_TILING_CONFIG, (gb_tiling_config & 0xffff));
WREG32(DMA_TILING_CONFIG, (gb_tiling_config & 0xffff));
WREG32(DMA_TILING_CONFIG2, (gb_tiling_config & 0xffff));
WREG32(CGTS_SYS_TCC_DISABLE, 0);
WREG32(CGTS_TCC_DISABLE, 0);
@ -886,7 +889,7 @@ static int rv770_mc_init(struct radeon_device *rdev)
static int rv770_startup(struct radeon_device *rdev)
{
struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
struct radeon_ring *ring;
int r;
/* enable pcie gen2 link */
@ -932,6 +935,12 @@ static int rv770_startup(struct radeon_device *rdev)
return r;
}
r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
/* Enable IRQ */
r = r600_irq_init(rdev);
if (r) {
@ -941,11 +950,20 @@ static int rv770_startup(struct radeon_device *rdev)
}
r600_irq_set(rdev);
ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
R600_CP_RB_RPTR, R600_CP_RB_WPTR,
0, 0xfffff, RADEON_CP_PACKET2);
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR, DMA_RB_WPTR,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
if (r)
return r;
r = rv770_cp_load_microcode(rdev);
if (r)
return r;
@ -953,6 +971,10 @@ static int rv770_startup(struct radeon_device *rdev)
if (r)
return r;
r = r600_dma_resume(rdev);
if (r)
return r;
r = radeon_ib_pool_init(rdev);
if (r) {
dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
@ -995,7 +1017,7 @@ int rv770_suspend(struct radeon_device *rdev)
{
r600_audio_fini(rdev);
r700_cp_stop(rdev);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
r600_dma_stop(rdev);
r600_irq_suspend(rdev);
radeon_wb_disable(rdev);
rv770_pcie_gart_disable(rdev);
@ -1066,6 +1088,9 @@ int rv770_init(struct radeon_device *rdev)
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@ -1078,6 +1103,7 @@ int rv770_init(struct radeon_device *rdev)
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
r700_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);
@ -1093,6 +1119,7 @@ void rv770_fini(struct radeon_device *rdev)
{
r600_blit_fini(rdev);
r700_cp_fini(rdev);
r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);

23
drivers/gpu/drm/radeon/rv770d.h
View file

@ -109,6 +109,9 @@
#define PIPE_TILING__SHIFT 1
#define PIPE_TILING__MASK 0x0000000e
#define DMA_TILING_CONFIG 0x3ec8
#define DMA_TILING_CONFIG2 0xd0b8
#define GC_USER_SHADER_PIPE_CONFIG 0x8954
#define INACTIVE_QD_PIPES(x) ((x) << 8)
#define INACTIVE_QD_PIPES_MASK 0x0000FF00
@ -358,6 +361,26 @@
#define WAIT_UNTIL 0x8040
/* async DMA */
#define DMA_RB_RPTR 0xd008
#define DMA_RB_WPTR 0xd00c
/* async DMA packets */
#define DMA_PACKET(cmd, t, s, n) ((((cmd) & 0xF) << 28) | \
(((t) & 0x1) << 23) | \
(((s) & 0x1) << 22) | \
(((n) & 0xFFFF) << 0))
/* async DMA Packet types */
#define DMA_PACKET_WRITE 0x2
#define DMA_PACKET_COPY 0x3
#define DMA_PACKET_INDIRECT_BUFFER 0x4
#define DMA_PACKET_SEMAPHORE 0x5
#define DMA_PACKET_FENCE 0x6
#define DMA_PACKET_TRAP 0x7
#define DMA_PACKET_CONSTANT_FILL 0xd
#define DMA_PACKET_NOP 0xf
#define SRBM_STATUS 0x0E50
/* DCE 3.2 HDMI */

279
drivers/gpu/drm/radeon/si.c
View file

@ -1660,6 +1660,8 @@ static void si_gpu_init(struct radeon_device *rdev)
WREG32(GB_ADDR_CONFIG, gb_addr_config);
WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
WREG32(HDP_ADDR_CONFIG, gb_addr_config);
WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
si_tiling_mode_table_init(rdev);
@ -1836,6 +1838,9 @@ static void si_cp_enable(struct radeon_device *rdev, bool enable)
radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT));
WREG32(SCRATCH_UMSK, 0);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
}
udelay(50);
}
@ -2820,30 +2825,86 @@ void si_vm_set_page(struct radeon_device *rdev, uint64_t pe,
{
struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
uint64_t value;
unsigned ndw;
while (count) {
unsigned ndw = 2 + count * 2;
if (ndw > 0x3FFE)
ndw = 0x3FFE;
if (rdev->asic->vm.pt_ring_index == RADEON_RING_TYPE_GFX_INDEX) {
while (count) {
ndw = 2 + count * 2;
if (ndw > 0x3FFE)
ndw = 0x3FFE;
radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw));
radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
WRITE_DATA_DST_SEL(1)));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe));
for (; ndw > 2; ndw -= 2, --count, pe += 8) {
uint64_t value;
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
} else if (flags & RADEON_VM_PAGE_VALID)
value = addr;
else
value = 0;
addr += incr;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
radeon_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, ndw));
radeon_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) |
WRITE_DATA_DST_SEL(1)));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe));
for (; ndw > 2; ndw -= 2, --count, pe += 8) {
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
} else if (flags & RADEON_VM_PAGE_VALID) {
value = addr;
} else {
value = 0;
}
addr += incr;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
}
}
} else {
/* DMA */
if (flags & RADEON_VM_PAGE_SYSTEM) {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)
ndw = 0xFFFFE;
/* for non-physically contiguous pages (system) */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 0, ndw));
radeon_ring_write(ring, pe);
radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
for (; ndw > 0; ndw -= 2, --count, pe += 8) {
if (flags & RADEON_VM_PAGE_SYSTEM) {
value = radeon_vm_map_gart(rdev, addr);
value &= 0xFFFFFFFFFFFFF000ULL;
} else if (flags & RADEON_VM_PAGE_VALID) {
value = addr;
} else {
value = 0;
}
addr += incr;
value |= r600_flags;
radeon_ring_write(ring, value);
radeon_ring_write(ring, upper_32_bits(value));
}
}
} else {
while (count) {
ndw = count * 2;
if (ndw > 0xFFFFE)
ndw = 0xFFFFE;
if (flags & RADEON_VM_PAGE_VALID)
value = addr;
else
value = 0;
/* for physically contiguous pages (vram) */
radeon_ring_write(ring, DMA_PTE_PDE_PACKET(ndw));
radeon_ring_write(ring, pe); /* dst addr */
radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
radeon_ring_write(ring, r600_flags); /* mask */
radeon_ring_write(ring, 0);
radeon_ring_write(ring, value); /* value */
radeon_ring_write(ring, upper_32_bits(value));
radeon_ring_write(ring, incr); /* increment size */
radeon_ring_write(ring, 0);
pe += ndw * 4;
addr += (ndw / 2) * incr;
count -= ndw / 2;
}
}
}
}
@ -2891,6 +2952,32 @@ void si_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
radeon_ring_write(ring, 0x0);
}
void si_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
{
struct radeon_ring *ring = &rdev->ring[ridx];
if (vm == NULL)
return;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
if (vm->id < 8) {
radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
} else {
radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm->id - 8) << 2)) >> 2));
}
radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
/* flush hdp cache */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
radeon_ring_write(ring, 1);
/* bits 0-7 are the VM contexts0-7 */
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0));
radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
radeon_ring_write(ring, 1 << vm->id);
}
/*
* RLC
*/
@ -3059,6 +3146,10 @@ static void si_disable_interrupt_state(struct radeon_device *rdev)
WREG32(CP_INT_CNTL_RING0, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
WREG32(CP_INT_CNTL_RING1, 0);
WREG32(CP_INT_CNTL_RING2, 0);
tmp = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, tmp);
tmp = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, tmp);
WREG32(GRBM_INT_CNTL, 0);
WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@ -3178,6 +3269,7 @@ int si_irq_set(struct radeon_device *rdev)
u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
u32 grbm_int_cntl = 0;
u32 grph1 = 0, grph2 = 0, grph3 = 0, grph4 = 0, grph5 = 0, grph6 = 0;
u32 dma_cntl, dma_cntl1;
if (!rdev->irq.installed) {
WARN(1, "Can't enable IRQ/MSI because no handler is installed\n");
@ -3198,6 +3290,9 @@ int si_irq_set(struct radeon_device *rdev)
hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
dma_cntl = RREG32(DMA_CNTL + DMA0_REGISTER_OFFSET) & ~TRAP_ENABLE;
dma_cntl1 = RREG32(DMA_CNTL + DMA1_REGISTER_OFFSET) & ~TRAP_ENABLE;
/* enable CP interrupts on all rings */
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
DRM_DEBUG("si_irq_set: sw int gfx\n");
@ -3211,6 +3306,15 @@ int si_irq_set(struct radeon_device *rdev)
DRM_DEBUG("si_irq_set: sw int cp2\n");
cp_int_cntl2 |= TIME_STAMP_INT_ENABLE;
}
if (atomic_read(&rdev->irq.ring_int[R600_RING_TYPE_DMA_INDEX])) {
DRM_DEBUG("si_irq_set: sw int dma\n");
dma_cntl |= TRAP_ENABLE;
}
if (atomic_read(&rdev->irq.ring_int[CAYMAN_RING_TYPE_DMA1_INDEX])) {
DRM_DEBUG("si_irq_set: sw int dma1\n");
dma_cntl1 |= TRAP_ENABLE;
}
if (rdev->irq.crtc_vblank_int[0] ||
atomic_read(&rdev->irq.pflip[0])) {
DRM_DEBUG("si_irq_set: vblank 0\n");
@ -3270,6 +3374,9 @@ int si_irq_set(struct radeon_device *rdev)
WREG32(CP_INT_CNTL_RING1, cp_int_cntl1);
WREG32(CP_INT_CNTL_RING2, cp_int_cntl2);
WREG32(DMA_CNTL + DMA0_REGISTER_OFFSET, dma_cntl);
WREG32(DMA_CNTL + DMA1_REGISTER_OFFSET, dma_cntl1);
WREG32(GRBM_INT_CNTL, grbm_int_cntl);
WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
@ -3728,9 +3835,17 @@ int si_irq_process(struct radeon_device *rdev)
break;
}
break;
case 224: /* DMA trap event */
DRM_DEBUG("IH: DMA trap\n");
radeon_fence_process(rdev, R600_RING_TYPE_DMA_INDEX);
break;
case 233: /* GUI IDLE */
DRM_DEBUG("IH: GUI idle\n");
break;
case 244: /* DMA trap event */
DRM_DEBUG("IH: DMA1 trap\n");
radeon_fence_process(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
break;
default:
DRM_DEBUG("Unhandled interrupt: %d %d\n", src_id, src_data);
break;
@ -3754,6 +3869,80 @@ int si_irq_process(struct radeon_device *rdev)
return IRQ_HANDLED;
}
/**
* si_copy_dma - copy pages using the DMA engine
*
* @rdev: radeon_device pointer
* @src_offset: src GPU address
* @dst_offset: dst GPU address
* @num_gpu_pages: number of GPU pages to xfer
* @fence: radeon fence object
*
* Copy GPU paging using the DMA engine (SI).
* Used by the radeon ttm implementation to move pages if
* registered as the asic copy callback.
*/
int si_copy_dma(struct radeon_device *rdev,
uint64_t src_offset, uint64_t dst_offset,
unsigned num_gpu_pages,
struct radeon_fence **fence)
{
struct radeon_semaphore *sem = NULL;
int ring_index = rdev->asic->copy.dma_ring_index;
struct radeon_ring *ring = &rdev->ring[ring_index];
u32 size_in_bytes, cur_size_in_bytes;
int i, num_loops;
int r = 0;
r = radeon_semaphore_create(rdev, &sem);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
return r;
}
size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT);
num_loops = DIV_ROUND_UP(size_in_bytes, 0xfffff);
r = radeon_ring_lock(rdev, ring, num_loops * 5 + 11);
if (r) {
DRM_ERROR("radeon: moving bo (%d).\n", r);
radeon_semaphore_free(rdev, &sem, NULL);
return r;
}
if (radeon_fence_need_sync(*fence, ring->idx)) {
radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
ring->idx);
radeon_fence_note_sync(*fence, ring->idx);
} else {
radeon_semaphore_free(rdev, &sem, NULL);
}
for (i = 0; i < num_loops; i++) {
cur_size_in_bytes = size_in_bytes;
if (cur_size_in_bytes > 0xFFFFF)
cur_size_in_bytes = 0xFFFFF;
size_in_bytes -= cur_size_in_bytes;
radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_COPY, 1, 0, 0, cur_size_in_bytes));
radeon_ring_write(ring, dst_offset & 0xffffffff);
radeon_ring_write(ring, src_offset & 0xffffffff);
radeon_ring_write(ring, upper_32_bits(dst_offset) & 0xff);
radeon_ring_write(ring, upper_32_bits(src_offset) & 0xff);
src_offset += cur_size_in_bytes;
dst_offset += cur_size_in_bytes;
}
r = radeon_fence_emit(rdev, fence, ring->idx);
if (r) {
radeon_ring_unlock_undo(rdev, ring);
return r;
}
radeon_ring_unlock_commit(rdev, ring);
radeon_semaphore_free(rdev, &sem, *fence);
return r;
}
/*
* startup/shutdown callbacks
*/
@ -3825,6 +4014,18 @@ static int si_startup(struct radeon_device *rdev)
return r;
}
r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
return r;
}
/* Enable IRQ */
r = si_irq_init(rdev);
if (r) {
@ -3855,6 +4056,22 @@ static int si_startup(struct radeon_device *rdev)
if (r)
return r;
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
DMA_RB_RPTR + DMA0_REGISTER_OFFSET,
DMA_RB_WPTR + DMA0_REGISTER_OFFSET,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
if (r)
return r;
ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
r = radeon_ring_init(rdev, ring, ring->ring_size, CAYMAN_WB_DMA1_RPTR_OFFSET,
DMA_RB_RPTR + DMA1_REGISTER_OFFSET,
DMA_RB_WPTR + DMA1_REGISTER_OFFSET,
2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0));
if (r)
return r;
r = si_cp_load_microcode(rdev);
if (r)
return r;
@ -3862,6 +4079,10 @@ static int si_startup(struct radeon_device *rdev)
if (r)
return r;
r = cayman_dma_resume(rdev);
if (r)
return r;
r = radeon_ib_pool_init(rdev);
if (r) {
dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
@ -3903,9 +4124,7 @@ int si_resume(struct radeon_device *rdev)
int si_suspend(struct radeon_device *rdev)
{
si_cp_enable(rdev, false);
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
cayman_dma_stop(rdev);
si_irq_suspend(rdev);
radeon_wb_disable(rdev);
si_pcie_gart_disable(rdev);
@ -3983,6 +4202,14 @@ int si_init(struct radeon_device *rdev)
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 1024 * 1024);
ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 64 * 1024);
ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
ring->ring_obj = NULL;
r600_ring_init(rdev, ring, 64 * 1024);
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@ -3995,6 +4222,7 @@ int si_init(struct radeon_device *rdev)
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
si_cp_fini(rdev);
cayman_dma_fini(rdev);
si_irq_fini(rdev);
si_rlc_fini(rdev);
radeon_wb_fini(rdev);
@ -4023,6 +4251,7 @@ void si_fini(struct radeon_device *rdev)
r600_blit_fini(rdev);
#endif
si_cp_fini(rdev);
cayman_dma_fini(rdev);
si_irq_fini(rdev);
si_rlc_fini(rdev);
radeon_wb_fini(rdev);

57
drivers/gpu/drm/radeon/sid.h
View file

@ -936,4 +936,61 @@
#define PACKET3_WAIT_ON_AVAIL_BUFFER 0x8A
#define PACKET3_SWITCH_BUFFER 0x8B
/* ASYNC DMA - first instance at 0xd000, second at 0xd800 */
#define DMA0_REGISTER_OFFSET 0x0 /* not a register */
#define DMA1_REGISTER_OFFSET 0x800 /* not a register */
#define DMA_RB_CNTL 0xd000
# define DMA_RB_ENABLE (1 << 0)
# define DMA_RB_SIZE(x) ((x) << 1) /* log2 */
# define DMA_RB_SWAP_ENABLE (1 << 9) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_ENABLE (1 << 12)
# define DMA_RPTR_WRITEBACK_SWAP_ENABLE (1 << 13) /* 8IN32 */
# define DMA_RPTR_WRITEBACK_TIMER(x) ((x) << 16) /* log2 */
#define DMA_RB_BASE 0xd004
#define DMA_RB_RPTR 0xd008
#define DMA_RB_WPTR 0xd00c
#define DMA_RB_RPTR_ADDR_HI 0xd01c
#define DMA_RB_RPTR_ADDR_LO 0xd020
#define DMA_IB_CNTL 0xd024
# define DMA_IB_ENABLE (1 << 0)
# define DMA_IB_SWAP_ENABLE (1 << 4)
#define DMA_IB_RPTR 0xd028
#define DMA_CNTL 0xd02c
# define TRAP_ENABLE (1 << 0)
# define SEM_INCOMPLETE_INT_ENABLE (1 << 1)
# define SEM_WAIT_INT_ENABLE (1 << 2)
# define DATA_SWAP_ENABLE (1 << 3)
# define FENCE_SWAP_ENABLE (1 << 4)
# define CTXEMPTY_INT_ENABLE (1 << 28)
#define DMA_TILING_CONFIG 0xd0b8
#define DMA_PACKET(cmd, b, t, s, n) ((((cmd) & 0xF) << 28) | \
(((b) & 0x1) << 26) | \
(((t) & 0x1) << 23) | \
(((s) & 0x1) << 22) | \
(((n) & 0xFFFFF) << 0))
#define DMA_IB_PACKET(cmd, vmid, n) ((((cmd) & 0xF) << 28) | \
(((vmid) & 0xF) << 20) | \
(((n) & 0xFFFFF) << 0))
#define DMA_PTE_PDE_PACKET(n) ((2 << 28) | \
(1 << 26) | \
(1 << 21) | \
(((n) & 0xFFFFF) << 0))
/* async DMA Packet types */
#define DMA_PACKET_WRITE 0x2
#define DMA_PACKET_COPY 0x3
#define DMA_PACKET_INDIRECT_BUFFER 0x4
#define DMA_PACKET_SEMAPHORE 0x5
#define DMA_PACKET_FENCE 0x6
#define DMA_PACKET_TRAP 0x7
#define DMA_PACKET_SRBM_WRITE 0x9
#define DMA_PACKET_CONSTANT_FILL 0xd
#define DMA_PACKET_NOP 0xf
#endif