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2483b4ea CK |
1 | /* |
2 | * Copyright 2013 Advanced Micro Devices, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * Authors: Alex Deucher | |
23 | */ | |
24 | #include <linux/firmware.h> | |
25 | #include <drm/drmP.h> | |
26 | #include "radeon.h" | |
f2c6b0f4 | 27 | #include "radeon_ucode.h" |
2483b4ea | 28 | #include "radeon_asic.h" |
74d360f6 | 29 | #include "radeon_trace.h" |
2483b4ea CK |
30 | #include "cikd.h" |
31 | ||
32 | /* sdma */ | |
33 | #define CIK_SDMA_UCODE_SIZE 1050 | |
34 | #define CIK_SDMA_UCODE_VERSION 64 | |
35 | ||
36 | u32 cik_gpu_check_soft_reset(struct radeon_device *rdev); | |
37 | ||
38 | /* | |
39 | * sDMA - System DMA | |
40 | * Starting with CIK, the GPU has new asynchronous | |
41 | * DMA engines. These engines are used for compute | |
42 | * and gfx. There are two DMA engines (SDMA0, SDMA1) | |
43 | * and each one supports 1 ring buffer used for gfx | |
44 | * and 2 queues used for compute. | |
45 | * | |
46 | * The programming model is very similar to the CP | |
47 | * (ring buffer, IBs, etc.), but sDMA has it's own | |
48 | * packet format that is different from the PM4 format | |
49 | * used by the CP. sDMA supports copying data, writing | |
50 | * embedded data, solid fills, and a number of other | |
51 | * things. It also has support for tiling/detiling of | |
52 | * buffers. | |
53 | */ | |
54 | ||
ea31bf69 AD |
55 | /** |
56 | * cik_sdma_get_rptr - get the current read pointer | |
57 | * | |
58 | * @rdev: radeon_device pointer | |
59 | * @ring: radeon ring pointer | |
60 | * | |
61 | * Get the current rptr from the hardware (CIK+). | |
62 | */ | |
63 | uint32_t cik_sdma_get_rptr(struct radeon_device *rdev, | |
64 | struct radeon_ring *ring) | |
65 | { | |
66 | u32 rptr, reg; | |
67 | ||
68 | if (rdev->wb.enabled) { | |
69 | rptr = rdev->wb.wb[ring->rptr_offs/4]; | |
70 | } else { | |
71 | if (ring->idx == R600_RING_TYPE_DMA_INDEX) | |
72 | reg = SDMA0_GFX_RB_RPTR + SDMA0_REGISTER_OFFSET; | |
73 | else | |
74 | reg = SDMA0_GFX_RB_RPTR + SDMA1_REGISTER_OFFSET; | |
75 | ||
76 | rptr = RREG32(reg); | |
77 | } | |
78 | ||
79 | return (rptr & 0x3fffc) >> 2; | |
80 | } | |
81 | ||
82 | /** | |
83 | * cik_sdma_get_wptr - get the current write pointer | |
84 | * | |
85 | * @rdev: radeon_device pointer | |
86 | * @ring: radeon ring pointer | |
87 | * | |
88 | * Get the current wptr from the hardware (CIK+). | |
89 | */ | |
90 | uint32_t cik_sdma_get_wptr(struct radeon_device *rdev, | |
91 | struct radeon_ring *ring) | |
92 | { | |
93 | u32 reg; | |
94 | ||
95 | if (ring->idx == R600_RING_TYPE_DMA_INDEX) | |
96 | reg = SDMA0_GFX_RB_WPTR + SDMA0_REGISTER_OFFSET; | |
97 | else | |
98 | reg = SDMA0_GFX_RB_WPTR + SDMA1_REGISTER_OFFSET; | |
99 | ||
100 | return (RREG32(reg) & 0x3fffc) >> 2; | |
101 | } | |
102 | ||
103 | /** | |
104 | * cik_sdma_set_wptr - commit the write pointer | |
105 | * | |
106 | * @rdev: radeon_device pointer | |
107 | * @ring: radeon ring pointer | |
108 | * | |
109 | * Write the wptr back to the hardware (CIK+). | |
110 | */ | |
111 | void cik_sdma_set_wptr(struct radeon_device *rdev, | |
112 | struct radeon_ring *ring) | |
113 | { | |
114 | u32 reg; | |
115 | ||
116 | if (ring->idx == R600_RING_TYPE_DMA_INDEX) | |
117 | reg = SDMA0_GFX_RB_WPTR + SDMA0_REGISTER_OFFSET; | |
118 | else | |
119 | reg = SDMA0_GFX_RB_WPTR + SDMA1_REGISTER_OFFSET; | |
120 | ||
121 | WREG32(reg, (ring->wptr << 2) & 0x3fffc); | |
f069dc1d | 122 | (void)RREG32(reg); |
ea31bf69 AD |
123 | } |
124 | ||
2483b4ea CK |
125 | /** |
126 | * cik_sdma_ring_ib_execute - Schedule an IB on the DMA engine | |
127 | * | |
128 | * @rdev: radeon_device pointer | |
129 | * @ib: IB object to schedule | |
130 | * | |
131 | * Schedule an IB in the DMA ring (CIK). | |
132 | */ | |
133 | void cik_sdma_ring_ib_execute(struct radeon_device *rdev, | |
134 | struct radeon_ib *ib) | |
135 | { | |
136 | struct radeon_ring *ring = &rdev->ring[ib->ring]; | |
137 | u32 extra_bits = (ib->vm ? ib->vm->id : 0) & 0xf; | |
138 | ||
139 | if (rdev->wb.enabled) { | |
140 | u32 next_rptr = ring->wptr + 5; | |
141 | while ((next_rptr & 7) != 4) | |
142 | next_rptr++; | |
143 | next_rptr += 4; | |
144 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); | |
145 | radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc); | |
5e167cdb | 146 | radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr)); |
2483b4ea CK |
147 | radeon_ring_write(ring, 1); /* number of DWs to follow */ |
148 | radeon_ring_write(ring, next_rptr); | |
149 | } | |
150 | ||
151 | /* IB packet must end on a 8 DW boundary */ | |
152 | while ((ring->wptr & 7) != 4) | |
153 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0)); | |
154 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits)); | |
155 | radeon_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */ | |
5e167cdb | 156 | radeon_ring_write(ring, upper_32_bits(ib->gpu_addr)); |
2483b4ea CK |
157 | radeon_ring_write(ring, ib->length_dw); |
158 | ||
159 | } | |
160 | ||
ca113f6b AD |
161 | /** |
162 | * cik_sdma_hdp_flush_ring_emit - emit an hdp flush on the DMA ring | |
163 | * | |
164 | * @rdev: radeon_device pointer | |
165 | * @ridx: radeon ring index | |
166 | * | |
167 | * Emit an hdp flush packet on the requested DMA ring. | |
168 | */ | |
169 | static void cik_sdma_hdp_flush_ring_emit(struct radeon_device *rdev, | |
170 | int ridx) | |
171 | { | |
172 | struct radeon_ring *ring = &rdev->ring[ridx]; | |
da9e07e6 AD |
173 | u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) | |
174 | SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */ | |
175 | u32 ref_and_mask; | |
ca113f6b | 176 | |
da9e07e6 AD |
177 | if (ridx == R600_RING_TYPE_DMA_INDEX) |
178 | ref_and_mask = SDMA0; | |
179 | else | |
180 | ref_and_mask = SDMA1; | |
181 | ||
182 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits)); | |
183 | radeon_ring_write(ring, GPU_HDP_FLUSH_DONE); | |
184 | radeon_ring_write(ring, GPU_HDP_FLUSH_REQ); | |
185 | radeon_ring_write(ring, ref_and_mask); /* reference */ | |
186 | radeon_ring_write(ring, ref_and_mask); /* mask */ | |
187 | radeon_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */ | |
ca113f6b AD |
188 | } |
189 | ||
2483b4ea CK |
190 | /** |
191 | * cik_sdma_fence_ring_emit - emit a fence on the DMA ring | |
192 | * | |
193 | * @rdev: radeon_device pointer | |
194 | * @fence: radeon fence object | |
195 | * | |
196 | * Add a DMA fence packet to the ring to write | |
197 | * the fence seq number and DMA trap packet to generate | |
198 | * an interrupt if needed (CIK). | |
199 | */ | |
200 | void cik_sdma_fence_ring_emit(struct radeon_device *rdev, | |
201 | struct radeon_fence *fence) | |
202 | { | |
203 | struct radeon_ring *ring = &rdev->ring[fence->ring]; | |
204 | u64 addr = rdev->fence_drv[fence->ring].gpu_addr; | |
2483b4ea CK |
205 | |
206 | /* write the fence */ | |
207 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0)); | |
5e167cdb CK |
208 | radeon_ring_write(ring, lower_32_bits(addr)); |
209 | radeon_ring_write(ring, upper_32_bits(addr)); | |
2483b4ea CK |
210 | radeon_ring_write(ring, fence->seq); |
211 | /* generate an interrupt */ | |
212 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0)); | |
213 | /* flush HDP */ | |
ca113f6b | 214 | cik_sdma_hdp_flush_ring_emit(rdev, fence->ring); |
2483b4ea CK |
215 | } |
216 | ||
217 | /** | |
218 | * cik_sdma_semaphore_ring_emit - emit a semaphore on the dma ring | |
219 | * | |
220 | * @rdev: radeon_device pointer | |
221 | * @ring: radeon_ring structure holding ring information | |
222 | * @semaphore: radeon semaphore object | |
223 | * @emit_wait: wait or signal semaphore | |
224 | * | |
225 | * Add a DMA semaphore packet to the ring wait on or signal | |
226 | * other rings (CIK). | |
227 | */ | |
1654b817 | 228 | bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev, |
2483b4ea CK |
229 | struct radeon_ring *ring, |
230 | struct radeon_semaphore *semaphore, | |
231 | bool emit_wait) | |
232 | { | |
233 | u64 addr = semaphore->gpu_addr; | |
234 | u32 extra_bits = emit_wait ? 0 : SDMA_SEMAPHORE_EXTRA_S; | |
235 | ||
236 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits)); | |
237 | radeon_ring_write(ring, addr & 0xfffffff8); | |
5e167cdb | 238 | radeon_ring_write(ring, upper_32_bits(addr)); |
1654b817 CK |
239 | |
240 | return true; | |
2483b4ea CK |
241 | } |
242 | ||
243 | /** | |
244 | * cik_sdma_gfx_stop - stop the gfx async dma engines | |
245 | * | |
246 | * @rdev: radeon_device pointer | |
247 | * | |
248 | * Stop the gfx async dma ring buffers (CIK). | |
249 | */ | |
250 | static void cik_sdma_gfx_stop(struct radeon_device *rdev) | |
251 | { | |
252 | u32 rb_cntl, reg_offset; | |
253 | int i; | |
254 | ||
50efa51a AD |
255 | if ((rdev->asic->copy.copy_ring_index == R600_RING_TYPE_DMA_INDEX) || |
256 | (rdev->asic->copy.copy_ring_index == CAYMAN_RING_TYPE_DMA1_INDEX)) | |
257 | radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size); | |
2483b4ea CK |
258 | |
259 | for (i = 0; i < 2; i++) { | |
260 | if (i == 0) | |
261 | reg_offset = SDMA0_REGISTER_OFFSET; | |
262 | else | |
263 | reg_offset = SDMA1_REGISTER_OFFSET; | |
264 | rb_cntl = RREG32(SDMA0_GFX_RB_CNTL + reg_offset); | |
265 | rb_cntl &= ~SDMA_RB_ENABLE; | |
266 | WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl); | |
267 | WREG32(SDMA0_GFX_IB_CNTL + reg_offset, 0); | |
268 | } | |
7b1bbe88 AD |
269 | rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false; |
270 | rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false; | |
2483b4ea CK |
271 | } |
272 | ||
273 | /** | |
274 | * cik_sdma_rlc_stop - stop the compute async dma engines | |
275 | * | |
276 | * @rdev: radeon_device pointer | |
277 | * | |
278 | * Stop the compute async dma queues (CIK). | |
279 | */ | |
280 | static void cik_sdma_rlc_stop(struct radeon_device *rdev) | |
281 | { | |
282 | /* XXX todo */ | |
283 | } | |
284 | ||
285 | /** | |
286 | * cik_sdma_enable - stop the async dma engines | |
287 | * | |
288 | * @rdev: radeon_device pointer | |
289 | * @enable: enable/disable the DMA MEs. | |
290 | * | |
291 | * Halt or unhalt the async dma engines (CIK). | |
292 | */ | |
293 | void cik_sdma_enable(struct radeon_device *rdev, bool enable) | |
294 | { | |
295 | u32 me_cntl, reg_offset; | |
296 | int i; | |
297 | ||
07ae78c9 AD |
298 | if (enable == false) { |
299 | cik_sdma_gfx_stop(rdev); | |
300 | cik_sdma_rlc_stop(rdev); | |
301 | } | |
302 | ||
2483b4ea CK |
303 | for (i = 0; i < 2; i++) { |
304 | if (i == 0) | |
305 | reg_offset = SDMA0_REGISTER_OFFSET; | |
306 | else | |
307 | reg_offset = SDMA1_REGISTER_OFFSET; | |
308 | me_cntl = RREG32(SDMA0_ME_CNTL + reg_offset); | |
309 | if (enable) | |
310 | me_cntl &= ~SDMA_HALT; | |
311 | else | |
312 | me_cntl |= SDMA_HALT; | |
313 | WREG32(SDMA0_ME_CNTL + reg_offset, me_cntl); | |
314 | } | |
315 | } | |
316 | ||
317 | /** | |
318 | * cik_sdma_gfx_resume - setup and start the async dma engines | |
319 | * | |
320 | * @rdev: radeon_device pointer | |
321 | * | |
322 | * Set up the gfx DMA ring buffers and enable them (CIK). | |
323 | * Returns 0 for success, error for failure. | |
324 | */ | |
325 | static int cik_sdma_gfx_resume(struct radeon_device *rdev) | |
326 | { | |
327 | struct radeon_ring *ring; | |
328 | u32 rb_cntl, ib_cntl; | |
329 | u32 rb_bufsz; | |
330 | u32 reg_offset, wb_offset; | |
331 | int i, r; | |
332 | ||
333 | for (i = 0; i < 2; i++) { | |
334 | if (i == 0) { | |
335 | ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX]; | |
336 | reg_offset = SDMA0_REGISTER_OFFSET; | |
337 | wb_offset = R600_WB_DMA_RPTR_OFFSET; | |
338 | } else { | |
339 | ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]; | |
340 | reg_offset = SDMA1_REGISTER_OFFSET; | |
341 | wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET; | |
342 | } | |
343 | ||
344 | WREG32(SDMA0_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0); | |
345 | WREG32(SDMA0_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0); | |
346 | ||
347 | /* Set ring buffer size in dwords */ | |
9c725e5b | 348 | rb_bufsz = order_base_2(ring->ring_size / 4); |
2483b4ea CK |
349 | rb_cntl = rb_bufsz << 1; |
350 | #ifdef __BIG_ENDIAN | |
351 | rb_cntl |= SDMA_RB_SWAP_ENABLE | SDMA_RPTR_WRITEBACK_SWAP_ENABLE; | |
352 | #endif | |
353 | WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl); | |
354 | ||
355 | /* Initialize the ring buffer's read and write pointers */ | |
356 | WREG32(SDMA0_GFX_RB_RPTR + reg_offset, 0); | |
357 | WREG32(SDMA0_GFX_RB_WPTR + reg_offset, 0); | |
358 | ||
359 | /* set the wb address whether it's enabled or not */ | |
360 | WREG32(SDMA0_GFX_RB_RPTR_ADDR_HI + reg_offset, | |
361 | upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF); | |
362 | WREG32(SDMA0_GFX_RB_RPTR_ADDR_LO + reg_offset, | |
363 | ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC)); | |
364 | ||
365 | if (rdev->wb.enabled) | |
366 | rb_cntl |= SDMA_RPTR_WRITEBACK_ENABLE; | |
367 | ||
368 | WREG32(SDMA0_GFX_RB_BASE + reg_offset, ring->gpu_addr >> 8); | |
369 | WREG32(SDMA0_GFX_RB_BASE_HI + reg_offset, ring->gpu_addr >> 40); | |
370 | ||
371 | ring->wptr = 0; | |
372 | WREG32(SDMA0_GFX_RB_WPTR + reg_offset, ring->wptr << 2); | |
373 | ||
2483b4ea CK |
374 | /* enable DMA RB */ |
375 | WREG32(SDMA0_GFX_RB_CNTL + reg_offset, rb_cntl | SDMA_RB_ENABLE); | |
376 | ||
377 | ib_cntl = SDMA_IB_ENABLE; | |
378 | #ifdef __BIG_ENDIAN | |
379 | ib_cntl |= SDMA_IB_SWAP_ENABLE; | |
380 | #endif | |
381 | /* enable DMA IBs */ | |
382 | WREG32(SDMA0_GFX_IB_CNTL + reg_offset, ib_cntl); | |
383 | ||
384 | ring->ready = true; | |
385 | ||
386 | r = radeon_ring_test(rdev, ring->idx, ring); | |
387 | if (r) { | |
388 | ring->ready = false; | |
389 | return r; | |
390 | } | |
391 | } | |
392 | ||
50efa51a AD |
393 | if ((rdev->asic->copy.copy_ring_index == R600_RING_TYPE_DMA_INDEX) || |
394 | (rdev->asic->copy.copy_ring_index == CAYMAN_RING_TYPE_DMA1_INDEX)) | |
395 | radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size); | |
2483b4ea CK |
396 | |
397 | return 0; | |
398 | } | |
399 | ||
400 | /** | |
401 | * cik_sdma_rlc_resume - setup and start the async dma engines | |
402 | * | |
403 | * @rdev: radeon_device pointer | |
404 | * | |
405 | * Set up the compute DMA queues and enable them (CIK). | |
406 | * Returns 0 for success, error for failure. | |
407 | */ | |
408 | static int cik_sdma_rlc_resume(struct radeon_device *rdev) | |
409 | { | |
410 | /* XXX todo */ | |
411 | return 0; | |
412 | } | |
413 | ||
414 | /** | |
415 | * cik_sdma_load_microcode - load the sDMA ME ucode | |
416 | * | |
417 | * @rdev: radeon_device pointer | |
418 | * | |
419 | * Loads the sDMA0/1 ucode. | |
420 | * Returns 0 for success, -EINVAL if the ucode is not available. | |
421 | */ | |
422 | static int cik_sdma_load_microcode(struct radeon_device *rdev) | |
423 | { | |
2483b4ea CK |
424 | int i; |
425 | ||
426 | if (!rdev->sdma_fw) | |
427 | return -EINVAL; | |
428 | ||
2483b4ea CK |
429 | /* halt the MEs */ |
430 | cik_sdma_enable(rdev, false); | |
431 | ||
f2c6b0f4 AD |
432 | if (rdev->new_fw) { |
433 | const struct sdma_firmware_header_v1_0 *hdr = | |
434 | (const struct sdma_firmware_header_v1_0 *)rdev->sdma_fw->data; | |
435 | const __le32 *fw_data; | |
436 | u32 fw_size; | |
437 | ||
438 | radeon_ucode_print_sdma_hdr(&hdr->header); | |
439 | ||
440 | /* sdma0 */ | |
441 | fw_data = (const __le32 *) | |
442 | (rdev->sdma_fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); | |
443 | fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; | |
444 | WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0); | |
445 | for (i = 0; i < fw_size; i++) | |
446 | WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, le32_to_cpup(fw_data++)); | |
447 | WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION); | |
448 | ||
449 | /* sdma1 */ | |
450 | fw_data = (const __le32 *) | |
451 | (rdev->sdma_fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); | |
452 | fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; | |
453 | WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0); | |
454 | for (i = 0; i < fw_size; i++) | |
455 | WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, le32_to_cpup(fw_data++)); | |
456 | WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION); | |
457 | } else { | |
458 | const __be32 *fw_data; | |
459 | ||
460 | /* sdma0 */ | |
461 | fw_data = (const __be32 *)rdev->sdma_fw->data; | |
462 | WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0); | |
463 | for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++) | |
464 | WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, be32_to_cpup(fw_data++)); | |
465 | WREG32(SDMA0_UCODE_DATA + SDMA0_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION); | |
466 | ||
467 | /* sdma1 */ | |
468 | fw_data = (const __be32 *)rdev->sdma_fw->data; | |
469 | WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0); | |
470 | for (i = 0; i < CIK_SDMA_UCODE_SIZE; i++) | |
471 | WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, be32_to_cpup(fw_data++)); | |
472 | WREG32(SDMA0_UCODE_DATA + SDMA1_REGISTER_OFFSET, CIK_SDMA_UCODE_VERSION); | |
473 | } | |
2483b4ea CK |
474 | |
475 | WREG32(SDMA0_UCODE_ADDR + SDMA0_REGISTER_OFFSET, 0); | |
476 | WREG32(SDMA0_UCODE_ADDR + SDMA1_REGISTER_OFFSET, 0); | |
477 | return 0; | |
478 | } | |
479 | ||
480 | /** | |
481 | * cik_sdma_resume - setup and start the async dma engines | |
482 | * | |
483 | * @rdev: radeon_device pointer | |
484 | * | |
485 | * Set up the DMA engines and enable them (CIK). | |
486 | * Returns 0 for success, error for failure. | |
487 | */ | |
488 | int cik_sdma_resume(struct radeon_device *rdev) | |
489 | { | |
490 | int r; | |
491 | ||
2483b4ea CK |
492 | r = cik_sdma_load_microcode(rdev); |
493 | if (r) | |
494 | return r; | |
495 | ||
496 | /* unhalt the MEs */ | |
497 | cik_sdma_enable(rdev, true); | |
498 | ||
499 | /* start the gfx rings and rlc compute queues */ | |
500 | r = cik_sdma_gfx_resume(rdev); | |
501 | if (r) | |
502 | return r; | |
503 | r = cik_sdma_rlc_resume(rdev); | |
504 | if (r) | |
505 | return r; | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | /** | |
511 | * cik_sdma_fini - tear down the async dma engines | |
512 | * | |
513 | * @rdev: radeon_device pointer | |
514 | * | |
515 | * Stop the async dma engines and free the rings (CIK). | |
516 | */ | |
517 | void cik_sdma_fini(struct radeon_device *rdev) | |
518 | { | |
2483b4ea CK |
519 | /* halt the MEs */ |
520 | cik_sdma_enable(rdev, false); | |
521 | radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]); | |
522 | radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]); | |
523 | /* XXX - compute dma queue tear down */ | |
524 | } | |
525 | ||
526 | /** | |
527 | * cik_copy_dma - copy pages using the DMA engine | |
528 | * | |
529 | * @rdev: radeon_device pointer | |
530 | * @src_offset: src GPU address | |
531 | * @dst_offset: dst GPU address | |
532 | * @num_gpu_pages: number of GPU pages to xfer | |
57d20a43 | 533 | * @resv: reservation object to sync to |
2483b4ea CK |
534 | * |
535 | * Copy GPU paging using the DMA engine (CIK). | |
536 | * Used by the radeon ttm implementation to move pages if | |
537 | * registered as the asic copy callback. | |
538 | */ | |
57d20a43 CK |
539 | struct radeon_fence *cik_copy_dma(struct radeon_device *rdev, |
540 | uint64_t src_offset, uint64_t dst_offset, | |
541 | unsigned num_gpu_pages, | |
542 | struct reservation_object *resv) | |
2483b4ea | 543 | { |
57d20a43 | 544 | struct radeon_fence *fence; |
975700d2 | 545 | struct radeon_sync sync; |
2483b4ea CK |
546 | int ring_index = rdev->asic->copy.dma_ring_index; |
547 | struct radeon_ring *ring = &rdev->ring[ring_index]; | |
548 | u32 size_in_bytes, cur_size_in_bytes; | |
549 | int i, num_loops; | |
550 | int r = 0; | |
551 | ||
975700d2 | 552 | radeon_sync_create(&sync); |
2483b4ea CK |
553 | |
554 | size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT); | |
555 | num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff); | |
556 | r = radeon_ring_lock(rdev, ring, num_loops * 7 + 14); | |
557 | if (r) { | |
558 | DRM_ERROR("radeon: moving bo (%d).\n", r); | |
975700d2 | 559 | radeon_sync_free(rdev, &sync, NULL); |
57d20a43 | 560 | return ERR_PTR(r); |
2483b4ea CK |
561 | } |
562 | ||
975700d2 CK |
563 | radeon_sync_resv(rdev, &sync, resv, false); |
564 | radeon_sync_rings(rdev, &sync, ring->idx); | |
2483b4ea CK |
565 | |
566 | for (i = 0; i < num_loops; i++) { | |
567 | cur_size_in_bytes = size_in_bytes; | |
568 | if (cur_size_in_bytes > 0x1fffff) | |
569 | cur_size_in_bytes = 0x1fffff; | |
570 | size_in_bytes -= cur_size_in_bytes; | |
571 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0)); | |
572 | radeon_ring_write(ring, cur_size_in_bytes); | |
573 | radeon_ring_write(ring, 0); /* src/dst endian swap */ | |
5e167cdb CK |
574 | radeon_ring_write(ring, lower_32_bits(src_offset)); |
575 | radeon_ring_write(ring, upper_32_bits(src_offset)); | |
576 | radeon_ring_write(ring, lower_32_bits(dst_offset)); | |
577 | radeon_ring_write(ring, upper_32_bits(dst_offset)); | |
2483b4ea CK |
578 | src_offset += cur_size_in_bytes; |
579 | dst_offset += cur_size_in_bytes; | |
580 | } | |
581 | ||
57d20a43 | 582 | r = radeon_fence_emit(rdev, &fence, ring->idx); |
2483b4ea CK |
583 | if (r) { |
584 | radeon_ring_unlock_undo(rdev, ring); | |
975700d2 | 585 | radeon_sync_free(rdev, &sync, NULL); |
57d20a43 | 586 | return ERR_PTR(r); |
2483b4ea CK |
587 | } |
588 | ||
1538a9e0 | 589 | radeon_ring_unlock_commit(rdev, ring, false); |
975700d2 | 590 | radeon_sync_free(rdev, &sync, fence); |
2483b4ea | 591 | |
57d20a43 | 592 | return fence; |
2483b4ea CK |
593 | } |
594 | ||
595 | /** | |
596 | * cik_sdma_ring_test - simple async dma engine test | |
597 | * | |
598 | * @rdev: radeon_device pointer | |
599 | * @ring: radeon_ring structure holding ring information | |
600 | * | |
601 | * Test the DMA engine by writing using it to write an | |
602 | * value to memory. (CIK). | |
603 | * Returns 0 for success, error for failure. | |
604 | */ | |
605 | int cik_sdma_ring_test(struct radeon_device *rdev, | |
606 | struct radeon_ring *ring) | |
607 | { | |
608 | unsigned i; | |
609 | int r; | |
adfed2b0 | 610 | unsigned index; |
2483b4ea | 611 | u32 tmp; |
adfed2b0 | 612 | u64 gpu_addr; |
2483b4ea | 613 | |
adfed2b0 AD |
614 | if (ring->idx == R600_RING_TYPE_DMA_INDEX) |
615 | index = R600_WB_DMA_RING_TEST_OFFSET; | |
616 | else | |
617 | index = CAYMAN_WB_DMA1_RING_TEST_OFFSET; | |
618 | ||
619 | gpu_addr = rdev->wb.gpu_addr + index; | |
2483b4ea CK |
620 | |
621 | tmp = 0xCAFEDEAD; | |
adfed2b0 | 622 | rdev->wb.wb[index/4] = cpu_to_le32(tmp); |
2483b4ea | 623 | |
7e95cfb0 | 624 | r = radeon_ring_lock(rdev, ring, 5); |
2483b4ea CK |
625 | if (r) { |
626 | DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r); | |
627 | return r; | |
628 | } | |
629 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0)); | |
adfed2b0 AD |
630 | radeon_ring_write(ring, lower_32_bits(gpu_addr)); |
631 | radeon_ring_write(ring, upper_32_bits(gpu_addr)); | |
2483b4ea CK |
632 | radeon_ring_write(ring, 1); /* number of DWs to follow */ |
633 | radeon_ring_write(ring, 0xDEADBEEF); | |
1538a9e0 | 634 | radeon_ring_unlock_commit(rdev, ring, false); |
2483b4ea CK |
635 | |
636 | for (i = 0; i < rdev->usec_timeout; i++) { | |
adfed2b0 | 637 | tmp = le32_to_cpu(rdev->wb.wb[index/4]); |
2483b4ea CK |
638 | if (tmp == 0xDEADBEEF) |
639 | break; | |
640 | DRM_UDELAY(1); | |
641 | } | |
642 | ||
643 | if (i < rdev->usec_timeout) { | |
644 | DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i); | |
645 | } else { | |
646 | DRM_ERROR("radeon: ring %d test failed (0x%08X)\n", | |
647 | ring->idx, tmp); | |
648 | r = -EINVAL; | |
649 | } | |
650 | return r; | |
651 | } | |
652 | ||
653 | /** | |
654 | * cik_sdma_ib_test - test an IB on the DMA engine | |
655 | * | |
656 | * @rdev: radeon_device pointer | |
657 | * @ring: radeon_ring structure holding ring information | |
658 | * | |
659 | * Test a simple IB in the DMA ring (CIK). | |
660 | * Returns 0 on success, error on failure. | |
661 | */ | |
662 | int cik_sdma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) | |
663 | { | |
664 | struct radeon_ib ib; | |
665 | unsigned i; | |
666 | int r; | |
667 | void __iomem *ptr = (void *)rdev->vram_scratch.ptr; | |
668 | u32 tmp = 0; | |
669 | ||
670 | if (!ptr) { | |
671 | DRM_ERROR("invalid vram scratch pointer\n"); | |
672 | return -EINVAL; | |
673 | } | |
674 | ||
675 | tmp = 0xCAFEDEAD; | |
676 | writel(tmp, ptr); | |
677 | ||
678 | r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256); | |
679 | if (r) { | |
680 | DRM_ERROR("radeon: failed to get ib (%d).\n", r); | |
681 | return r; | |
682 | } | |
683 | ||
684 | ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0); | |
685 | ib.ptr[1] = rdev->vram_scratch.gpu_addr & 0xfffffffc; | |
5e167cdb | 686 | ib.ptr[2] = upper_32_bits(rdev->vram_scratch.gpu_addr); |
2483b4ea CK |
687 | ib.ptr[3] = 1; |
688 | ib.ptr[4] = 0xDEADBEEF; | |
689 | ib.length_dw = 5; | |
690 | ||
1538a9e0 | 691 | r = radeon_ib_schedule(rdev, &ib, NULL, false); |
2483b4ea CK |
692 | if (r) { |
693 | radeon_ib_free(rdev, &ib); | |
694 | DRM_ERROR("radeon: failed to schedule ib (%d).\n", r); | |
695 | return r; | |
696 | } | |
697 | r = radeon_fence_wait(ib.fence, false); | |
698 | if (r) { | |
699 | DRM_ERROR("radeon: fence wait failed (%d).\n", r); | |
700 | return r; | |
701 | } | |
702 | for (i = 0; i < rdev->usec_timeout; i++) { | |
703 | tmp = readl(ptr); | |
704 | if (tmp == 0xDEADBEEF) | |
705 | break; | |
706 | DRM_UDELAY(1); | |
707 | } | |
708 | if (i < rdev->usec_timeout) { | |
709 | DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib.fence->ring, i); | |
710 | } else { | |
711 | DRM_ERROR("radeon: ib test failed (0x%08X)\n", tmp); | |
712 | r = -EINVAL; | |
713 | } | |
714 | radeon_ib_free(rdev, &ib); | |
715 | return r; | |
716 | } | |
717 | ||
718 | /** | |
719 | * cik_sdma_is_lockup - Check if the DMA engine is locked up | |
720 | * | |
721 | * @rdev: radeon_device pointer | |
722 | * @ring: radeon_ring structure holding ring information | |
723 | * | |
724 | * Check if the async DMA engine is locked up (CIK). | |
725 | * Returns true if the engine appears to be locked up, false if not. | |
726 | */ | |
727 | bool cik_sdma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring) | |
728 | { | |
729 | u32 reset_mask = cik_gpu_check_soft_reset(rdev); | |
730 | u32 mask; | |
731 | ||
732 | if (ring->idx == R600_RING_TYPE_DMA_INDEX) | |
733 | mask = RADEON_RESET_DMA; | |
734 | else | |
735 | mask = RADEON_RESET_DMA1; | |
736 | ||
737 | if (!(reset_mask & mask)) { | |
ff212f25 | 738 | radeon_ring_lockup_update(rdev, ring); |
2483b4ea CK |
739 | return false; |
740 | } | |
2483b4ea CK |
741 | return radeon_ring_test_lockup(rdev, ring); |
742 | } | |
743 | ||
744 | /** | |
03f62abd CK |
745 | * cik_sdma_vm_copy_pages - update PTEs by copying them from the GART |
746 | * | |
747 | * @rdev: radeon_device pointer | |
748 | * @ib: indirect buffer to fill with commands | |
749 | * @pe: addr of the page entry | |
750 | * @src: src addr to copy from | |
751 | * @count: number of page entries to update | |
752 | * | |
753 | * Update PTEs by copying them from the GART using sDMA (CIK). | |
754 | */ | |
755 | void cik_sdma_vm_copy_pages(struct radeon_device *rdev, | |
756 | struct radeon_ib *ib, | |
757 | uint64_t pe, uint64_t src, | |
758 | unsigned count) | |
759 | { | |
760 | while (count) { | |
761 | unsigned bytes = count * 8; | |
762 | if (bytes > 0x1FFFF8) | |
763 | bytes = 0x1FFFF8; | |
764 | ||
765 | ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, | |
766 | SDMA_WRITE_SUB_OPCODE_LINEAR, 0); | |
767 | ib->ptr[ib->length_dw++] = bytes; | |
768 | ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */ | |
769 | ib->ptr[ib->length_dw++] = lower_32_bits(src); | |
770 | ib->ptr[ib->length_dw++] = upper_32_bits(src); | |
771 | ib->ptr[ib->length_dw++] = lower_32_bits(pe); | |
772 | ib->ptr[ib->length_dw++] = upper_32_bits(pe); | |
773 | ||
774 | pe += bytes; | |
775 | src += bytes; | |
776 | count -= bytes / 8; | |
777 | } | |
778 | } | |
779 | ||
780 | /** | |
781 | * cik_sdma_vm_write_pages - update PTEs by writing them manually | |
2483b4ea CK |
782 | * |
783 | * @rdev: radeon_device pointer | |
784 | * @ib: indirect buffer to fill with commands | |
785 | * @pe: addr of the page entry | |
786 | * @addr: dst addr to write into pe | |
787 | * @count: number of page entries to update | |
788 | * @incr: increase next addr by incr bytes | |
789 | * @flags: access flags | |
790 | * | |
03f62abd | 791 | * Update PTEs by writing them manually using sDMA (CIK). |
2483b4ea | 792 | */ |
03f62abd CK |
793 | void cik_sdma_vm_write_pages(struct radeon_device *rdev, |
794 | struct radeon_ib *ib, | |
795 | uint64_t pe, | |
796 | uint64_t addr, unsigned count, | |
797 | uint32_t incr, uint32_t flags) | |
2483b4ea | 798 | { |
2483b4ea CK |
799 | uint64_t value; |
800 | unsigned ndw; | |
801 | ||
03f62abd CK |
802 | while (count) { |
803 | ndw = count * 2; | |
804 | if (ndw > 0xFFFFE) | |
805 | ndw = 0xFFFFE; | |
806 | ||
807 | /* for non-physically contiguous pages (system) */ | |
808 | ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE, | |
809 | SDMA_WRITE_SUB_OPCODE_LINEAR, 0); | |
810 | ib->ptr[ib->length_dw++] = pe; | |
811 | ib->ptr[ib->length_dw++] = upper_32_bits(pe); | |
812 | ib->ptr[ib->length_dw++] = ndw; | |
813 | for (; ndw > 0; ndw -= 2, --count, pe += 8) { | |
814 | if (flags & R600_PTE_SYSTEM) { | |
24c16439 CK |
815 | value = radeon_vm_map_gart(rdev, addr); |
816 | value &= 0xFFFFFFFFFFFFF000ULL; | |
03f62abd | 817 | } else if (flags & R600_PTE_VALID) { |
2483b4ea | 818 | value = addr; |
03f62abd | 819 | } else { |
2483b4ea | 820 | value = 0; |
03f62abd CK |
821 | } |
822 | addr += incr; | |
823 | value |= flags; | |
824 | ib->ptr[ib->length_dw++] = value; | |
2483b4ea | 825 | ib->ptr[ib->length_dw++] = upper_32_bits(value); |
2483b4ea CK |
826 | } |
827 | } | |
03f62abd CK |
828 | } |
829 | ||
830 | /** | |
831 | * cik_sdma_vm_set_pages - update the page tables using sDMA | |
832 | * | |
833 | * @rdev: radeon_device pointer | |
834 | * @ib: indirect buffer to fill with commands | |
835 | * @pe: addr of the page entry | |
836 | * @addr: dst addr to write into pe | |
837 | * @count: number of page entries to update | |
838 | * @incr: increase next addr by incr bytes | |
839 | * @flags: access flags | |
840 | * | |
841 | * Update the page tables using sDMA (CIK). | |
842 | */ | |
843 | void cik_sdma_vm_set_pages(struct radeon_device *rdev, | |
844 | struct radeon_ib *ib, | |
845 | uint64_t pe, | |
846 | uint64_t addr, unsigned count, | |
847 | uint32_t incr, uint32_t flags) | |
848 | { | |
849 | uint64_t value; | |
850 | unsigned ndw; | |
851 | ||
852 | while (count) { | |
853 | ndw = count; | |
854 | if (ndw > 0x7FFFF) | |
855 | ndw = 0x7FFFF; | |
856 | ||
857 | if (flags & R600_PTE_VALID) | |
858 | value = addr; | |
859 | else | |
860 | value = 0; | |
861 | ||
862 | /* for physically contiguous pages (vram) */ | |
863 | ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0); | |
864 | ib->ptr[ib->length_dw++] = pe; /* dst addr */ | |
865 | ib->ptr[ib->length_dw++] = upper_32_bits(pe); | |
866 | ib->ptr[ib->length_dw++] = flags; /* mask */ | |
867 | ib->ptr[ib->length_dw++] = 0; | |
868 | ib->ptr[ib->length_dw++] = value; /* value */ | |
869 | ib->ptr[ib->length_dw++] = upper_32_bits(value); | |
870 | ib->ptr[ib->length_dw++] = incr; /* increment size */ | |
871 | ib->ptr[ib->length_dw++] = 0; | |
872 | ib->ptr[ib->length_dw++] = ndw; /* number of entries */ | |
873 | ||
874 | pe += ndw * 8; | |
875 | addr += ndw * incr; | |
876 | count -= ndw; | |
877 | } | |
878 | } | |
879 | ||
880 | /** | |
881 | * cik_sdma_vm_pad_ib - pad the IB to the required number of dw | |
882 | * | |
883 | * @ib: indirect buffer to fill with padding | |
884 | * | |
885 | */ | |
886 | void cik_sdma_vm_pad_ib(struct radeon_ib *ib) | |
887 | { | |
2483b4ea CK |
888 | while (ib->length_dw & 0x7) |
889 | ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0); | |
890 | } | |
891 | ||
892 | /** | |
893 | * cik_dma_vm_flush - cik vm flush using sDMA | |
894 | * | |
895 | * @rdev: radeon_device pointer | |
896 | * | |
897 | * Update the page table base and flush the VM TLB | |
898 | * using sDMA (CIK). | |
899 | */ | |
faffaf62 CK |
900 | void cik_dma_vm_flush(struct radeon_device *rdev, struct radeon_ring *ring, |
901 | unsigned vm_id, uint64_t pd_addr) | |
2483b4ea | 902 | { |
2483b4ea | 903 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); |
faffaf62 CK |
904 | if (vm_id < 8) { |
905 | radeon_ring_write(ring, (VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm_id << 2)) >> 2); | |
2483b4ea | 906 | } else { |
faffaf62 | 907 | radeon_ring_write(ring, (VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + ((vm_id - 8) << 2)) >> 2); |
2483b4ea | 908 | } |
faffaf62 | 909 | radeon_ring_write(ring, pd_addr >> 12); |
2483b4ea CK |
910 | |
911 | /* update SH_MEM_* regs */ | |
912 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
913 | radeon_ring_write(ring, SRBM_GFX_CNTL >> 2); | |
faffaf62 | 914 | radeon_ring_write(ring, VMID(vm_id)); |
2483b4ea CK |
915 | |
916 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
917 | radeon_ring_write(ring, SH_MEM_BASES >> 2); | |
918 | radeon_ring_write(ring, 0); | |
919 | ||
920 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
921 | radeon_ring_write(ring, SH_MEM_CONFIG >> 2); | |
922 | radeon_ring_write(ring, 0); | |
923 | ||
924 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
925 | radeon_ring_write(ring, SH_MEM_APE1_BASE >> 2); | |
926 | radeon_ring_write(ring, 1); | |
927 | ||
928 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
929 | radeon_ring_write(ring, SH_MEM_APE1_LIMIT >> 2); | |
930 | radeon_ring_write(ring, 0); | |
931 | ||
932 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
933 | radeon_ring_write(ring, SRBM_GFX_CNTL >> 2); | |
934 | radeon_ring_write(ring, VMID(0)); | |
935 | ||
936 | /* flush HDP */ | |
faffaf62 | 937 | cik_sdma_hdp_flush_ring_emit(rdev, ring->idx); |
2483b4ea CK |
938 | |
939 | /* flush TLB */ | |
940 | radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); | |
941 | radeon_ring_write(ring, VM_INVALIDATE_REQUEST >> 2); | |
faffaf62 | 942 | radeon_ring_write(ring, 1 << vm_id); |
2483b4ea CK |
943 | } |
944 |