1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
6 * Copyright (c) 2014 The Linux Foundation. All rights reserved.
9 #include <linux/ascii85.h>
10 #include <linux/interconnect.h>
11 #include <linux/qcom_scm.h>
12 #include <linux/kernel.h>
13 #include <linux/of_address.h>
14 #include <linux/pm_opp.h>
15 #include <linux/slab.h>
16 #include <linux/soc/qcom/mdt_loader.h>
17 #include <soc/qcom/ocmem.h>
18 #include "adreno_gpu.h"
22 static bool zap_available = true;
24 static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname,
27 struct device *dev = &gpu->pdev->dev;
28 const struct firmware *fw;
29 const char *signed_fwname = NULL;
30 struct device_node *np, *mem_np;
34 void *mem_region = NULL;
37 if (!IS_ENABLED(CONFIG_ARCH_QCOM)) {
38 zap_available = false;
42 np = of_get_child_by_name(dev->of_node, "zap-shader");
44 zap_available = false;
48 mem_np = of_parse_phandle(np, "memory-region", 0);
51 zap_available = false;
55 ret = of_address_to_resource(mem_np, 0, &r);
63 * Check for a firmware-name property. This is the new scheme
64 * to handle firmware that may be signed with device specific
65 * keys, allowing us to have a different zap fw path for different
68 * If the firmware-name property is found, we bypass the
69 * adreno_request_fw() mechanism, because we don't need to handle
70 * the /lib/firmware/qcom/... vs /lib/firmware/... case.
72 * If the firmware-name property is not found, for backwards
73 * compatibility we fall back to the fwname from the gpulist
76 of_property_read_string_index(np, "firmware-name", 0, &signed_fwname);
78 fwname = signed_fwname;
79 ret = request_firmware_direct(&fw, fwname, gpu->dev->dev);
83 /* Request the MDT file from the default location: */
84 fw = adreno_request_fw(to_adreno_gpu(gpu), fwname);
87 * For new targets, we require the firmware-name property,
88 * if a zap-shader is required, rather than falling back
89 * to a firmware name specified in gpulist.
91 * Because the firmware is signed with a (potentially)
92 * device specific key, having the name come from gpulist
93 * was a bad idea, and is only provided for backwards
94 * compatibility for older targets.
100 DRM_DEV_ERROR(dev, "Unable to load %s\n", fwname);
104 /* Figure out how much memory we need */
105 mem_size = qcom_mdt_get_size(fw);
111 if (mem_size > resource_size(&r)) {
113 "memory region is too small to load the MDT\n");
118 /* Allocate memory for the firmware image */
119 mem_region = memremap(mem_phys, mem_size, MEMREMAP_WC);
126 * Load the rest of the MDT
128 * Note that we could be dealing with two different paths, since
129 * with upstream linux-firmware it would be in a qcom/ subdir..
130 * adreno_request_fw() handles this, but qcom_mdt_load() does
131 * not. But since we've already gotten through adreno_request_fw()
132 * we know which of the two cases it is:
134 if (signed_fwname || (to_adreno_gpu(gpu)->fwloc == FW_LOCATION_LEGACY)) {
135 ret = qcom_mdt_load(dev, fw, fwname, pasid,
136 mem_region, mem_phys, mem_size, NULL);
140 newname = kasprintf(GFP_KERNEL, "qcom/%s", fwname);
142 ret = qcom_mdt_load(dev, fw, newname, pasid,
143 mem_region, mem_phys, mem_size, NULL);
149 /* Send the image to the secure world */
150 ret = qcom_scm_pas_auth_and_reset(pasid);
153 * If the scm call returns -EOPNOTSUPP we assume that this target
154 * doesn't need/support the zap shader so quietly fail
156 if (ret == -EOPNOTSUPP)
157 zap_available = false;
159 DRM_DEV_ERROR(dev, "Unable to authorize the image\n");
163 memunmap(mem_region);
165 release_firmware(fw);
170 int adreno_zap_shader_load(struct msm_gpu *gpu, u32 pasid)
172 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
173 struct platform_device *pdev = gpu->pdev;
175 /* Short cut if we determine the zap shader isn't available/needed */
179 /* We need SCM to be able to load the firmware */
180 if (!qcom_scm_is_available()) {
181 DRM_DEV_ERROR(&pdev->dev, "SCM is not available\n");
182 return -EPROBE_DEFER;
185 return zap_shader_load_mdt(gpu, adreno_gpu->info->zapfw, pasid);
188 struct msm_gem_address_space *
189 adreno_iommu_create_address_space(struct msm_gpu *gpu,
190 struct platform_device *pdev)
192 struct iommu_domain *iommu;
194 struct msm_gem_address_space *aspace;
197 iommu = iommu_domain_alloc(&platform_bus_type);
201 mmu = msm_iommu_new(&pdev->dev, iommu);
204 * Use the aperture start or SZ_16M, whichever is greater. This will
205 * ensure that we align with the allocated pagetable range while still
206 * allowing room in the lower 32 bits for GMEM and whatnot
208 start = max_t(u64, SZ_16M, iommu->geometry.aperture_start);
209 size = iommu->geometry.aperture_end - start + 1;
211 aspace = msm_gem_address_space_create(mmu, "gpu",
212 start & GENMASK(48, 0), size);
214 if (IS_ERR(aspace) && !IS_ERR(mmu))
215 mmu->funcs->destroy(mmu);
220 int adreno_get_param(struct msm_gpu *gpu, uint32_t param, uint64_t *value)
222 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
225 case MSM_PARAM_GPU_ID:
226 *value = adreno_gpu->info->revn;
228 case MSM_PARAM_GMEM_SIZE:
229 *value = adreno_gpu->gmem;
231 case MSM_PARAM_GMEM_BASE:
232 *value = !adreno_is_a650(adreno_gpu) ? 0x100000 : 0;
234 case MSM_PARAM_CHIP_ID:
235 *value = adreno_gpu->rev.patchid |
236 (adreno_gpu->rev.minor << 8) |
237 (adreno_gpu->rev.major << 16) |
238 (adreno_gpu->rev.core << 24);
240 case MSM_PARAM_MAX_FREQ:
241 *value = adreno_gpu->base.fast_rate;
243 case MSM_PARAM_TIMESTAMP:
244 if (adreno_gpu->funcs->get_timestamp) {
247 pm_runtime_get_sync(&gpu->pdev->dev);
248 ret = adreno_gpu->funcs->get_timestamp(gpu, value);
249 pm_runtime_put_autosuspend(&gpu->pdev->dev);
254 case MSM_PARAM_NR_RINGS:
255 *value = gpu->nr_rings;
257 case MSM_PARAM_PP_PGTABLE:
260 case MSM_PARAM_FAULTS:
261 *value = gpu->global_faults;
264 DBG("%s: invalid param: %u", gpu->name, param);
269 const struct firmware *
270 adreno_request_fw(struct adreno_gpu *adreno_gpu, const char *fwname)
272 struct drm_device *drm = adreno_gpu->base.dev;
273 const struct firmware *fw = NULL;
277 newname = kasprintf(GFP_KERNEL, "qcom/%s", fwname);
279 return ERR_PTR(-ENOMEM);
282 * Try first to load from qcom/$fwfile using a direct load (to avoid
283 * a potential timeout waiting for usermode helper)
285 if ((adreno_gpu->fwloc == FW_LOCATION_UNKNOWN) ||
286 (adreno_gpu->fwloc == FW_LOCATION_NEW)) {
288 ret = request_firmware_direct(&fw, newname, drm->dev);
290 DRM_DEV_INFO(drm->dev, "loaded %s from new location\n",
292 adreno_gpu->fwloc = FW_LOCATION_NEW;
294 } else if (adreno_gpu->fwloc != FW_LOCATION_UNKNOWN) {
295 DRM_DEV_ERROR(drm->dev, "failed to load %s: %d\n",
303 * Then try the legacy location without qcom/ prefix
305 if ((adreno_gpu->fwloc == FW_LOCATION_UNKNOWN) ||
306 (adreno_gpu->fwloc == FW_LOCATION_LEGACY)) {
308 ret = request_firmware_direct(&fw, fwname, drm->dev);
310 DRM_DEV_INFO(drm->dev, "loaded %s from legacy location\n",
312 adreno_gpu->fwloc = FW_LOCATION_LEGACY;
314 } else if (adreno_gpu->fwloc != FW_LOCATION_UNKNOWN) {
315 DRM_DEV_ERROR(drm->dev, "failed to load %s: %d\n",
323 * Finally fall back to request_firmware() for cases where the
324 * usermode helper is needed (I think mainly android)
326 if ((adreno_gpu->fwloc == FW_LOCATION_UNKNOWN) ||
327 (adreno_gpu->fwloc == FW_LOCATION_HELPER)) {
329 ret = request_firmware(&fw, newname, drm->dev);
331 DRM_DEV_INFO(drm->dev, "loaded %s with helper\n",
333 adreno_gpu->fwloc = FW_LOCATION_HELPER;
335 } else if (adreno_gpu->fwloc != FW_LOCATION_UNKNOWN) {
336 DRM_DEV_ERROR(drm->dev, "failed to load %s: %d\n",
343 DRM_DEV_ERROR(drm->dev, "failed to load %s\n", fwname);
344 fw = ERR_PTR(-ENOENT);
350 int adreno_load_fw(struct adreno_gpu *adreno_gpu)
354 for (i = 0; i < ARRAY_SIZE(adreno_gpu->info->fw); i++) {
355 const struct firmware *fw;
357 if (!adreno_gpu->info->fw[i])
360 /* Skip if the firmware has already been loaded */
361 if (adreno_gpu->fw[i])
364 fw = adreno_request_fw(adreno_gpu, adreno_gpu->info->fw[i]);
368 adreno_gpu->fw[i] = fw;
374 struct drm_gem_object *adreno_fw_create_bo(struct msm_gpu *gpu,
375 const struct firmware *fw, u64 *iova)
377 struct drm_gem_object *bo;
380 ptr = msm_gem_kernel_new_locked(gpu->dev, fw->size - 4,
381 MSM_BO_UNCACHED | MSM_BO_GPU_READONLY, gpu->aspace, &bo, iova);
384 return ERR_CAST(ptr);
386 memcpy(ptr, &fw->data[4], fw->size - 4);
388 msm_gem_put_vaddr(bo);
393 int adreno_hw_init(struct msm_gpu *gpu)
395 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
398 DBG("%s", gpu->name);
400 ret = adreno_load_fw(adreno_gpu);
404 for (i = 0; i < gpu->nr_rings; i++) {
405 struct msm_ringbuffer *ring = gpu->rb[i];
410 ring->cur = ring->start;
411 ring->next = ring->start;
413 /* reset completed fence seqno: */
414 ring->memptrs->fence = ring->fctx->completed_fence;
415 ring->memptrs->rptr = 0;
421 /* Use this helper to read rptr, since a430 doesn't update rptr in memory */
422 static uint32_t get_rptr(struct adreno_gpu *adreno_gpu,
423 struct msm_ringbuffer *ring)
425 struct msm_gpu *gpu = &adreno_gpu->base;
427 return gpu->funcs->get_rptr(gpu, ring);
430 struct msm_ringbuffer *adreno_active_ring(struct msm_gpu *gpu)
435 void adreno_recover(struct msm_gpu *gpu)
437 struct drm_device *dev = gpu->dev;
440 // XXX pm-runtime?? we *need* the device to be off after this
441 // so maybe continuing to call ->pm_suspend/resume() is better?
443 gpu->funcs->pm_suspend(gpu);
444 gpu->funcs->pm_resume(gpu);
446 ret = msm_gpu_hw_init(gpu);
448 DRM_DEV_ERROR(dev->dev, "gpu hw init failed: %d\n", ret);
453 void adreno_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring, u32 reg)
457 /* Copy the shadow to the actual register */
458 ring->cur = ring->next;
461 * Mask wptr value that we calculate to fit in the HW range. This is
462 * to account for the possibility that the last command fit exactly into
463 * the ringbuffer and rb->next hasn't wrapped to zero yet
465 wptr = get_wptr(ring);
467 /* ensure writes to ringbuffer have hit system memory: */
470 gpu_write(gpu, reg, wptr);
473 bool adreno_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring)
475 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
476 uint32_t wptr = get_wptr(ring);
478 /* wait for CP to drain ringbuffer: */
479 if (!spin_until(get_rptr(adreno_gpu, ring) == wptr))
482 /* TODO maybe we need to reset GPU here to recover from hang? */
483 DRM_ERROR("%s: timeout waiting to drain ringbuffer %d rptr/wptr = %X/%X\n",
484 gpu->name, ring->id, get_rptr(adreno_gpu, ring), wptr);
489 int adreno_gpu_state_get(struct msm_gpu *gpu, struct msm_gpu_state *state)
491 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
494 kref_init(&state->ref);
496 ktime_get_real_ts64(&state->time);
498 for (i = 0; i < gpu->nr_rings; i++) {
501 state->ring[i].fence = gpu->rb[i]->memptrs->fence;
502 state->ring[i].iova = gpu->rb[i]->iova;
503 state->ring[i].seqno = gpu->rb[i]->seqno;
504 state->ring[i].rptr = get_rptr(adreno_gpu, gpu->rb[i]);
505 state->ring[i].wptr = get_wptr(gpu->rb[i]);
507 /* Copy at least 'wptr' dwords of the data */
508 size = state->ring[i].wptr;
510 /* After wptr find the last non zero dword to save space */
511 for (j = state->ring[i].wptr; j < MSM_GPU_RINGBUFFER_SZ >> 2; j++)
512 if (gpu->rb[i]->start[j])
516 state->ring[i].data = kvmalloc(size << 2, GFP_KERNEL);
517 if (state->ring[i].data) {
518 memcpy(state->ring[i].data, gpu->rb[i]->start, size << 2);
519 state->ring[i].data_size = size << 2;
524 /* Some targets prefer to collect their own registers */
525 if (!adreno_gpu->registers)
528 /* Count the number of registers */
529 for (i = 0; adreno_gpu->registers[i] != ~0; i += 2)
530 count += adreno_gpu->registers[i + 1] -
531 adreno_gpu->registers[i] + 1;
533 state->registers = kcalloc(count * 2, sizeof(u32), GFP_KERNEL);
534 if (state->registers) {
537 for (i = 0; adreno_gpu->registers[i] != ~0; i += 2) {
538 u32 start = adreno_gpu->registers[i];
539 u32 end = adreno_gpu->registers[i + 1];
542 for (addr = start; addr <= end; addr++) {
543 state->registers[pos++] = addr;
544 state->registers[pos++] = gpu_read(gpu, addr);
548 state->nr_registers = count;
554 void adreno_gpu_state_destroy(struct msm_gpu_state *state)
558 for (i = 0; i < ARRAY_SIZE(state->ring); i++)
559 kvfree(state->ring[i].data);
561 for (i = 0; state->bos && i < state->nr_bos; i++)
562 kvfree(state->bos[i].data);
567 kfree(state->registers);
570 static void adreno_gpu_state_kref_destroy(struct kref *kref)
572 struct msm_gpu_state *state = container_of(kref,
573 struct msm_gpu_state, ref);
575 adreno_gpu_state_destroy(state);
579 int adreno_gpu_state_put(struct msm_gpu_state *state)
581 if (IS_ERR_OR_NULL(state))
584 return kref_put(&state->ref, adreno_gpu_state_kref_destroy);
587 #if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP)
589 static char *adreno_gpu_ascii85_encode(u32 *src, size_t len)
592 size_t buf_itr = 0, buffer_size;
593 char out[ASCII85_BUFSZ];
600 l = ascii85_encode_len(len);
603 * Ascii85 outputs either a 5 byte string or a 1 byte string. So we
604 * account for the worst case of 5 bytes per dword plus the 1 for '\0'
606 buffer_size = (l * 5) + 1;
608 buf = kvmalloc(buffer_size, GFP_KERNEL);
612 for (i = 0; i < l; i++)
613 buf_itr += scnprintf(buf + buf_itr, buffer_size - buf_itr, "%s",
614 ascii85_encode(src[i], out));
619 /* len is expected to be in bytes */
620 static void adreno_show_object(struct drm_printer *p, void **ptr, int len,
631 * Only dump the non-zero part of the buffer - rarely will
632 * any data completely fill the entire allocated size of
635 for (datalen = 0, i = 0; i < len >> 2; i++)
637 datalen = ((i + 1) << 2);
640 * If we reach here, then the originally captured binary buffer
641 * will be replaced with the ascii85 encoded string
643 *ptr = adreno_gpu_ascii85_encode(buf, datalen);
653 drm_puts(p, " data: !!ascii85 |\n");
661 void adreno_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
662 struct drm_printer *p)
664 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
667 if (IS_ERR_OR_NULL(state))
670 drm_printf(p, "revision: %d (%d.%d.%d.%d)\n",
671 adreno_gpu->info->revn, adreno_gpu->rev.core,
672 adreno_gpu->rev.major, adreno_gpu->rev.minor,
673 adreno_gpu->rev.patchid);
675 drm_printf(p, "rbbm-status: 0x%08x\n", state->rbbm_status);
677 drm_puts(p, "ringbuffer:\n");
679 for (i = 0; i < gpu->nr_rings; i++) {
680 drm_printf(p, " - id: %d\n", i);
681 drm_printf(p, " iova: 0x%016llx\n", state->ring[i].iova);
682 drm_printf(p, " last-fence: %d\n", state->ring[i].seqno);
683 drm_printf(p, " retired-fence: %d\n", state->ring[i].fence);
684 drm_printf(p, " rptr: %d\n", state->ring[i].rptr);
685 drm_printf(p, " wptr: %d\n", state->ring[i].wptr);
686 drm_printf(p, " size: %d\n", MSM_GPU_RINGBUFFER_SZ);
688 adreno_show_object(p, &state->ring[i].data,
689 state->ring[i].data_size, &state->ring[i].encoded);
693 drm_puts(p, "bos:\n");
695 for (i = 0; i < state->nr_bos; i++) {
696 drm_printf(p, " - iova: 0x%016llx\n",
698 drm_printf(p, " size: %zd\n", state->bos[i].size);
700 adreno_show_object(p, &state->bos[i].data,
701 state->bos[i].size, &state->bos[i].encoded);
705 if (state->nr_registers) {
706 drm_puts(p, "registers:\n");
708 for (i = 0; i < state->nr_registers; i++) {
709 drm_printf(p, " - { offset: 0x%04x, value: 0x%08x }\n",
710 state->registers[i * 2] << 2,
711 state->registers[(i * 2) + 1]);
717 /* Dump common gpu status and scratch registers on any hang, to make
718 * the hangcheck logs more useful. The scratch registers seem always
719 * safe to read when GPU has hung (unlike some other regs, depending
720 * on how the GPU hung), and they are useful to match up to cmdstream
721 * dumps when debugging hangs:
723 void adreno_dump_info(struct msm_gpu *gpu)
725 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
728 printk("revision: %d (%d.%d.%d.%d)\n",
729 adreno_gpu->info->revn, adreno_gpu->rev.core,
730 adreno_gpu->rev.major, adreno_gpu->rev.minor,
731 adreno_gpu->rev.patchid);
733 for (i = 0; i < gpu->nr_rings; i++) {
734 struct msm_ringbuffer *ring = gpu->rb[i];
736 printk("rb %d: fence: %d/%d\n", i,
737 ring->memptrs->fence,
740 printk("rptr: %d\n", get_rptr(adreno_gpu, ring));
741 printk("rb wptr: %d\n", get_wptr(ring));
745 /* would be nice to not have to duplicate the _show() stuff with printk(): */
746 void adreno_dump(struct msm_gpu *gpu)
748 struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
751 if (!adreno_gpu->registers)
754 /* dump these out in a form that can be parsed by demsm: */
755 printk("IO:region %s 00000000 00020000\n", gpu->name);
756 for (i = 0; adreno_gpu->registers[i] != ~0; i += 2) {
757 uint32_t start = adreno_gpu->registers[i];
758 uint32_t end = adreno_gpu->registers[i+1];
761 for (addr = start; addr <= end; addr++) {
762 uint32_t val = gpu_read(gpu, addr);
763 printk("IO:R %08x %08x\n", addr<<2, val);
768 static uint32_t ring_freewords(struct msm_ringbuffer *ring)
770 struct adreno_gpu *adreno_gpu = to_adreno_gpu(ring->gpu);
771 uint32_t size = MSM_GPU_RINGBUFFER_SZ >> 2;
772 /* Use ring->next to calculate free size */
773 uint32_t wptr = ring->next - ring->start;
774 uint32_t rptr = get_rptr(adreno_gpu, ring);
775 return (rptr + (size - 1) - wptr) % size;
778 void adreno_wait_ring(struct msm_ringbuffer *ring, uint32_t ndwords)
780 if (spin_until(ring_freewords(ring) >= ndwords))
781 DRM_DEV_ERROR(ring->gpu->dev->dev,
782 "timeout waiting for space in ringbuffer %d\n",
786 /* Get legacy powerlevels from qcom,gpu-pwrlevels and populate the opp table */
787 static int adreno_get_legacy_pwrlevels(struct device *dev)
789 struct device_node *child, *node;
792 node = of_get_compatible_child(dev->of_node, "qcom,gpu-pwrlevels");
794 DRM_DEV_DEBUG(dev, "Could not find the GPU powerlevels\n");
798 for_each_child_of_node(node, child) {
801 ret = of_property_read_u32(child, "qcom,gpu-freq", &val);
806 * Skip the intentionally bogus clock value found at the bottom
807 * of most legacy frequency tables
810 dev_pm_opp_add(dev, val, 0);
818 static void adreno_get_pwrlevels(struct device *dev,
821 unsigned long freq = ULONG_MAX;
822 struct dev_pm_opp *opp;
827 /* You down with OPP? */
828 if (!of_find_property(dev->of_node, "operating-points-v2", NULL))
829 ret = adreno_get_legacy_pwrlevels(dev);
831 ret = dev_pm_opp_of_add_table(dev);
833 DRM_DEV_ERROR(dev, "Unable to set the OPP table\n");
837 /* Find the fastest defined rate */
838 opp = dev_pm_opp_find_freq_floor(dev, &freq);
840 gpu->fast_rate = freq;
845 if (!gpu->fast_rate) {
847 "Could not find a clock rate. Using a reasonable default\n");
848 /* Pick a suitably safe clock speed for any target */
849 gpu->fast_rate = 200000000;
852 DBG("fast_rate=%u, slow_rate=27000000", gpu->fast_rate);
855 int adreno_gpu_ocmem_init(struct device *dev, struct adreno_gpu *adreno_gpu,
856 struct adreno_ocmem *adreno_ocmem)
858 struct ocmem_buf *ocmem_hdl;
861 ocmem = of_get_ocmem(dev);
863 if (PTR_ERR(ocmem) == -ENODEV) {
865 * Return success since either the ocmem property was
866 * not specified in device tree, or ocmem support is
867 * not compiled into the kernel.
872 return PTR_ERR(ocmem);
875 ocmem_hdl = ocmem_allocate(ocmem, OCMEM_GRAPHICS, adreno_gpu->gmem);
876 if (IS_ERR(ocmem_hdl))
877 return PTR_ERR(ocmem_hdl);
879 adreno_ocmem->ocmem = ocmem;
880 adreno_ocmem->base = ocmem_hdl->addr;
881 adreno_ocmem->hdl = ocmem_hdl;
882 adreno_gpu->gmem = ocmem_hdl->len;
887 void adreno_gpu_ocmem_cleanup(struct adreno_ocmem *adreno_ocmem)
889 if (adreno_ocmem && adreno_ocmem->base)
890 ocmem_free(adreno_ocmem->ocmem, OCMEM_GRAPHICS,
894 int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
895 struct adreno_gpu *adreno_gpu,
896 const struct adreno_gpu_funcs *funcs, int nr_rings)
898 struct device *dev = &pdev->dev;
899 struct adreno_platform_config *config = dev->platform_data;
900 struct msm_gpu_config adreno_gpu_config = { 0 };
901 struct msm_gpu *gpu = &adreno_gpu->base;
904 adreno_gpu->funcs = funcs;
905 adreno_gpu->info = adreno_info(config->rev);
906 adreno_gpu->gmem = adreno_gpu->info->gmem;
907 adreno_gpu->revn = adreno_gpu->info->revn;
908 adreno_gpu->rev = config->rev;
910 adreno_gpu_config.ioname = "kgsl_3d0_reg_memory";
912 adreno_gpu_config.nr_rings = nr_rings;
914 adreno_get_pwrlevels(dev, gpu);
916 pm_runtime_set_autosuspend_delay(dev,
917 adreno_gpu->info->inactive_period);
918 pm_runtime_use_autosuspend(dev);
919 pm_runtime_enable(dev);
921 ret = msm_gpu_init(drm, pdev, &adreno_gpu->base, &funcs->base,
922 adreno_gpu->info->name, &adreno_gpu_config);
927 * The legacy case, before "interconnect-names", only has a
928 * single interconnect path which is equivalent to "gfx-mem"
930 if (!of_find_property(dev->of_node, "interconnect-names", NULL)) {
931 gpu->icc_path = of_icc_get(dev, NULL);
933 gpu->icc_path = of_icc_get(dev, "gfx-mem");
934 gpu->ocmem_icc_path = of_icc_get(dev, "ocmem");
937 if (IS_ERR(gpu->icc_path)) {
938 ret = PTR_ERR(gpu->icc_path);
939 gpu->icc_path = NULL;
943 if (IS_ERR(gpu->ocmem_icc_path)) {
944 ret = PTR_ERR(gpu->ocmem_icc_path);
945 gpu->ocmem_icc_path = NULL;
946 /* allow -ENODATA, ocmem icc is optional */
954 void adreno_gpu_cleanup(struct adreno_gpu *adreno_gpu)
956 struct msm_gpu *gpu = &adreno_gpu->base;
957 struct msm_drm_private *priv = gpu->dev->dev_private;
960 for (i = 0; i < ARRAY_SIZE(adreno_gpu->info->fw); i++)
961 release_firmware(adreno_gpu->fw[i]);
963 pm_runtime_disable(&priv->gpu_pdev->dev);
965 msm_gpu_cleanup(&adreno_gpu->base);
967 icc_put(gpu->icc_path);
968 icc_put(gpu->ocmem_icc_path);