drm/radeon: separate DMA code
Similar to separating the UVD code, just put the DMA
functions into separate files.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index f3f7908..f5307e6 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -78,6 +78,11 @@
extern u32 evergreen_get_number_of_dram_channels(struct radeon_device *rdev);
extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
extern bool evergreen_is_display_hung(struct radeon_device *rdev);
+extern void si_dma_vm_set_page(struct radeon_device *rdev,
+ struct radeon_ib *ib,
+ uint64_t pe,
+ uint64_t addr, unsigned count,
+ uint32_t incr, uint32_t flags);
static const u32 verde_rlc_save_restore_register_list[] =
{
@@ -3495,7 +3500,7 @@
return 0;
}
-static u32 si_gpu_check_soft_reset(struct radeon_device *rdev)
+u32 si_gpu_check_soft_reset(struct radeon_device *rdev)
{
u32 reset_mask = 0;
u32 tmp;
@@ -3744,34 +3749,6 @@
return radeon_ring_test_lockup(rdev, ring);
}
-/**
- * si_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.
- * Returns true if the engine appears to be locked up, false if not.
- */
-bool si_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
-{
- u32 reset_mask = si_gpu_check_soft_reset(rdev);
- u32 mask;
-
- if (ring->idx == R600_RING_TYPE_DMA_INDEX)
- mask = RADEON_RESET_DMA;
- else
- mask = RADEON_RESET_DMA1;
-
- if (!(reset_mask & mask)) {
- radeon_ring_lockup_update(ring);
- return false;
- }
- /* force ring activities */
- radeon_ring_force_activity(rdev, ring);
- return radeon_ring_test_lockup(rdev, ring);
-}
-
/* MC */
static void si_mc_program(struct radeon_device *rdev)
{
@@ -4710,58 +4687,7 @@
}
} else {
/* DMA */
- if (flags & RADEON_VM_PAGE_SYSTEM) {
- while (count) {
- ndw = count * 2;
- if (ndw > 0xFFFFE)
- ndw = 0xFFFFE;
-
- /* for non-physically contiguous pages (system) */
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 0, ndw);
- ib->ptr[ib->length_dw++] = pe;
- ib->ptr[ib->length_dw++] = 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;
- ib->ptr[ib->length_dw++] = value;
- ib->ptr[ib->length_dw++] = 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) */
- ib->ptr[ib->length_dw++] = DMA_PTE_PDE_PACKET(ndw);
- ib->ptr[ib->length_dw++] = pe; /* dst addr */
- ib->ptr[ib->length_dw++] = upper_32_bits(pe) & 0xff;
- ib->ptr[ib->length_dw++] = r600_flags; /* mask */
- ib->ptr[ib->length_dw++] = 0;
- ib->ptr[ib->length_dw++] = value; /* value */
- ib->ptr[ib->length_dw++] = upper_32_bits(value);
- ib->ptr[ib->length_dw++] = incr; /* increment size */
- ib->ptr[ib->length_dw++] = 0;
- pe += ndw * 4;
- addr += (ndw / 2) * incr;
- count -= ndw / 2;
- }
- }
- while (ib->length_dw & 0x7)
- ib->ptr[ib->length_dw++] = DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0, 0);
+ si_dma_vm_set_page(rdev, ib, pe, addr, count, incr, flags);
}
}
@@ -4808,32 +4734,6 @@
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);
-}
-
/*
* Power and clock gating
*/
@@ -6177,80 +6077,6 @@
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
*/