diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau')
20 files changed, 380 insertions, 85 deletions
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.c b/drivers/gpu/drm/nouveau/dispnv04/disp.c index 13705c5f1497..4b7497a8755c 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv04/disp.c @@ -68,7 +68,7 @@ nv04_display_fini(struct drm_device *dev, bool runtime, bool suspend) if (nv_two_heads(dev)) NVWriteCRTC(dev, 1, NV_PCRTC_INTR_EN_0, 0); - if (!runtime) + if (!runtime && !drm->headless) cancel_work_sync(&drm->hpd_work); if (!suspend) diff --git a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c index 670c9739e5e1..2033214c4b78 100644 --- a/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c +++ b/drivers/gpu/drm/nouveau/dispnv04/tvnv17.c @@ -209,6 +209,8 @@ static int nv17_tv_get_ld_modes(struct drm_encoder *encoder, struct drm_display_mode *mode; mode = drm_mode_duplicate(encoder->dev, tv_mode); + if (!mode) + continue; mode->clock = tv_norm->tv_enc_mode.vrefresh * mode->htotal / 1000 * @@ -258,6 +260,8 @@ static int nv17_tv_get_hd_modes(struct drm_encoder *encoder, if (modes[i].hdisplay == output_mode->hdisplay && modes[i].vdisplay == output_mode->vdisplay) { mode = drm_mode_duplicate(encoder->dev, output_mode); + if (!mode) + continue; mode->type |= DRM_MODE_TYPE_PREFERRED; } else { @@ -265,6 +269,8 @@ static int nv17_tv_get_hd_modes(struct drm_encoder *encoder, modes[i].vdisplay, 60, false, (output_mode->flags & DRM_MODE_FLAG_INTERLACE), false); + if (!mode) + continue; } /* CVT modes are sometimes unsuitable... */ diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index 88728a0b2c25..0efd6b4906cf 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -751,7 +751,7 @@ nv50_audio_enable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc, struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); struct nvif_outp *outp = &nv_encoder->outp; - if (!nv50_audio_supported(encoder) || !drm_detect_monitor_audio(nv_connector->edid)) + if (!nv50_audio_supported(encoder) || !nv_connector->base.display_info.has_audio) return; mutex_lock(&drm->audio.lock); @@ -1765,7 +1765,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta if ((disp->disp->object.oclass == GT214_DISP || disp->disp->object.oclass >= GF110_DISP) && nv_encoder->dcb->type != DCB_OUTPUT_LVDS && - drm_detect_monitor_audio(nv_connector->edid)) + nv_connector->base.display_info.has_audio) hda = true; if (!nvif_outp_acquired(outp)) @@ -1774,7 +1774,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta switch (nv_encoder->dcb->type) { case DCB_OUTPUT_TMDS: if (disp->disp->object.oclass != NV50_DISP && - drm_detect_hdmi_monitor(nv_connector->edid)) + nv_connector->base.display_info.is_hdmi) nv50_hdmi_enable(encoder, nv_crtc, nv_connector, state, mode, hda); if (nv_encoder->outp.or.link & 1) { @@ -1787,7 +1787,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct drm_atomic_state *sta */ if (mode->clock >= 165000 && nv_encoder->dcb->duallink_possible && - !drm_detect_hdmi_monitor(nv_connector->edid)) + !nv_connector->base.display_info.is_hdmi) proto = NV507D_SOR_SET_CONTROL_PROTOCOL_DUAL_TMDS; } else { proto = NV507D_SOR_SET_CONTROL_PROTOCOL_SINGLE_TMDS_B; @@ -2680,7 +2680,7 @@ nv50_display_fini(struct drm_device *dev, bool runtime, bool suspend) nv50_mstm_fini(nouveau_encoder(encoder)); } - if (!runtime) + if (!runtime && !drm->headless) cancel_work_sync(&drm->hpd_work); } diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c b/drivers/gpu/drm/nouveau/dispnv50/head.c index 83355dbc15ee..d7c74cc43ba5 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/head.c +++ b/drivers/gpu/drm/nouveau/dispnv50/head.c @@ -127,14 +127,8 @@ nv50_head_atomic_check_view(struct nv50_head_atom *armh, struct drm_display_mode *omode = &asyh->state.adjusted_mode; struct drm_display_mode *umode = &asyh->state.mode; int mode = asyc->scaler.mode; - struct edid *edid; int umode_vdisplay, omode_hdisplay, omode_vdisplay; - if (connector->edid_blob_ptr) - edid = (struct edid *)connector->edid_blob_ptr->data; - else - edid = NULL; - if (!asyc->scaler.full) { if (mode == DRM_MODE_SCALE_NONE) omode = umode; @@ -162,7 +156,7 @@ nv50_head_atomic_check_view(struct nv50_head_atom *armh, */ if ((asyc->scaler.underscan.mode == UNDERSCAN_ON || (asyc->scaler.underscan.mode == UNDERSCAN_AUTO && - drm_detect_hdmi_monitor(edid)))) { + connector->display_info.is_hdmi))) { u32 bX = asyc->scaler.underscan.hborder; u32 bY = asyc->scaler.underscan.vborder; u32 r = (asyh->view.oH << 19) / asyh->view.oW; diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h index a11d16a16c3b..9e6f39912368 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gsp.h @@ -213,6 +213,12 @@ struct nvkm_gsp { struct mutex mutex;; struct idr idr; } client_id; + + /* A linked list of registry items. The registry RPC will be built from it. */ + struct list_head registry_list; + + /* The size of the registry RPC */ + size_t registry_rpc_size; }; static inline bool diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 79cfab53f80e..8c3c1f1e01c5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -43,11 +43,6 @@ #define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ##arg) #define LOG_OLD_VALUE(x) -struct init_exec { - bool execute; - bool repeat; -}; - static bool nv_cksum(const uint8_t *data, unsigned int length) { /* diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 70fb003a6666..0712d0b15170 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -898,7 +898,7 @@ nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, * Without this the operation can timeout and we'll fallback to a * software copy, which might take several minutes to finish. */ - nouveau_fence_wait(fence, false, false); + nouveau_fence_wait(fence, false); ret = ttm_bo_move_accel_cleanup(bo, &fence->base, evict, false, new_reg); nouveau_fence_unref(&fence); diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c index 7c97b2886807..66fca95c10c7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_chan.c +++ b/drivers/gpu/drm/nouveau/nouveau_chan.c @@ -72,7 +72,7 @@ nouveau_channel_idle(struct nouveau_channel *chan) ret = nouveau_fence_new(&fence, chan); if (!ret) { - ret = nouveau_fence_wait(fence, false, false); + ret = nouveau_fence_wait(fence, false); nouveau_fence_unref(&fence); } diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 856b3ef5edb8..b06aa473102b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1001,6 +1001,9 @@ nouveau_connector_get_modes(struct drm_connector *connector) struct drm_display_mode *mode; mode = drm_mode_duplicate(dev, nv_connector->native_mode); + if (!mode) + return 0; + drm_mode_probed_add(connector, mode); ret = 1; } @@ -1034,7 +1037,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector) unsigned duallink_scale = nouveau_duallink && nv_encoder->dcb->duallink_possible ? 2 : 1; - if (drm_detect_hdmi_monitor(nv_connector->edid)) { + if (nv_connector->base.display_info.is_hdmi) { info = &nv_connector->base.display_info; duallink_scale = 1; } diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index aed5d5b51b43..d4725a968827 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -450,6 +450,9 @@ nouveau_display_hpd_resume(struct drm_device *dev) { struct nouveau_drm *drm = nouveau_drm(dev); + if (drm->headless) + return; + spin_lock_irq(&drm->hpd_lock); drm->hpd_pending = ~0; spin_unlock_irq(&drm->hpd_lock); @@ -635,7 +638,7 @@ nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime) } drm_connector_list_iter_end(&conn_iter); - if (!runtime) + if (!runtime && !drm->headless) cancel_work_sync(&drm->hpd_work); drm_kms_helper_poll_disable(dev); @@ -729,6 +732,7 @@ nouveau_display_create(struct drm_device *dev) /* no display hw */ if (ret == -ENODEV) { ret = 0; + drm->headless = true; goto disp_create_err; } diff --git a/drivers/gpu/drm/nouveau/nouveau_dmem.c b/drivers/gpu/drm/nouveau/nouveau_dmem.c index 6fb65b01d778..6719353e2e13 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dmem.c +++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c @@ -128,7 +128,7 @@ static void nouveau_dmem_page_free(struct page *page) static void nouveau_dmem_fence_done(struct nouveau_fence **fence) { if (fence) { - nouveau_fence_wait(*fence, true, false); + nouveau_fence_wait(*fence, false); nouveau_fence_unref(fence); } else { /* diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c index a947e1d5f309..a58c31089613 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drm.c +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c @@ -32,7 +32,7 @@ #include <drm/drm_aperture.h> #include <drm/drm_drv.h> -#include <drm/drm_fbdev_generic.h> +#include <drm/drm_fbdev_ttm.h> #include <drm/drm_gem_ttm_helper.h> #include <drm/drm_ioctl.h> #include <drm/drm_vblank.h> @@ -846,9 +846,9 @@ static int nouveau_drm_probe(struct pci_dev *pdev, goto fail_drm_dev_init; if (nouveau_drm(drm_dev)->client.device.info.ram_size <= 32 * 1024 * 1024) - drm_fbdev_generic_setup(drm_dev, 8); + drm_fbdev_ttm_setup(drm_dev, 8); else - drm_fbdev_generic_setup(drm_dev, 32); + drm_fbdev_ttm_setup(drm_dev, 32); quirk_broken_nv_runpm(pdev); return 0; diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h index e239c6bf4afa..25fca98a20bc 100644 --- a/drivers/gpu/drm/nouveau/nouveau_drv.h +++ b/drivers/gpu/drm/nouveau/nouveau_drv.h @@ -276,6 +276,7 @@ struct nouveau_drm { /* modesetting */ struct nvbios vbios; struct nouveau_display *display; + bool headless; struct work_struct hpd_work; spinlock_t hpd_lock; u32 hpd_pending; diff --git a/drivers/gpu/drm/nouveau/nouveau_exec.c b/drivers/gpu/drm/nouveau/nouveau_exec.c index e65c0ef23bc7..a0b5f1b16e8b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_exec.c +++ b/drivers/gpu/drm/nouveau/nouveau_exec.c @@ -188,7 +188,7 @@ nouveau_exec_job_timeout(struct nouveau_job *job) return DRM_GPU_SCHED_STAT_NOMINAL; } -static struct nouveau_job_ops nouveau_exec_job_ops = { +static const struct nouveau_job_ops nouveau_exec_job_ops = { .submit = nouveau_exec_job_submit, .armed_submit = nouveau_exec_job_armed_submit, .run = nouveau_exec_job_run, diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 93f08f9479d8..ba469767a20f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -311,39 +311,11 @@ nouveau_fence_wait_legacy(struct dma_fence *f, bool intr, long wait) return timeout - t; } -static int -nouveau_fence_wait_busy(struct nouveau_fence *fence, bool intr) -{ - int ret = 0; - - while (!nouveau_fence_done(fence)) { - if (time_after_eq(jiffies, fence->timeout)) { - ret = -EBUSY; - break; - } - - __set_current_state(intr ? - TASK_INTERRUPTIBLE : - TASK_UNINTERRUPTIBLE); - - if (intr && signal_pending(current)) { - ret = -ERESTARTSYS; - break; - } - } - - __set_current_state(TASK_RUNNING); - return ret; -} - int -nouveau_fence_wait(struct nouveau_fence *fence, bool lazy, bool intr) +nouveau_fence_wait(struct nouveau_fence *fence, bool intr) { long ret; - if (!lazy) - return nouveau_fence_wait_busy(fence, intr); - ret = dma_fence_wait_timeout(&fence->base, intr, 15 * HZ); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h index 8bc065acfe35..1b63197b744a 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.h +++ b/drivers/gpu/drm/nouveau/nouveau_fence.h @@ -23,7 +23,7 @@ void nouveau_fence_unref(struct nouveau_fence **); int nouveau_fence_emit(struct nouveau_fence *); bool nouveau_fence_done(struct nouveau_fence *); -int nouveau_fence_wait(struct nouveau_fence *, bool lazy, bool intr); +int nouveau_fence_wait(struct nouveau_fence *, bool intr); int nouveau_fence_sync(struct nouveau_bo *, struct nouveau_channel *, bool exclusive, bool intr); struct nouveau_fence_chan { diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index 5a887d67dc0e..2e535caa7d6e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/gpu/drm/nouveau/nouveau_gem.c @@ -928,7 +928,7 @@ revalidate: } if (sync) { - if (!(ret = nouveau_fence_wait(fence, false, false))) { + if (!(ret = nouveau_fence_wait(fence, false))) { if ((ret = dma_fence_get_status(&fence->base)) == 1) ret = 0; } diff --git a/drivers/gpu/drm/nouveau/nouveau_sched.h b/drivers/gpu/drm/nouveau/nouveau_sched.h index e1f01a23e6f6..20cd1da8db73 100644 --- a/drivers/gpu/drm/nouveau/nouveau_sched.h +++ b/drivers/gpu/drm/nouveau/nouveau_sched.h @@ -42,7 +42,7 @@ struct nouveau_job_args { u32 count; } out_sync; - struct nouveau_job_ops *ops; + const struct nouveau_job_ops *ops; }; struct nouveau_job { @@ -73,7 +73,7 @@ struct nouveau_job { u32 count; } out_sync; - struct nouveau_job_ops { + const struct nouveau_job_ops { /* If .submit() returns without any error, it is guaranteed that * armed_submit() is called. */ diff --git a/drivers/gpu/drm/nouveau/nouveau_uvmm.c b/drivers/gpu/drm/nouveau/nouveau_uvmm.c index ee02cd833c5e..9402fa320a7e 100644 --- a/drivers/gpu/drm/nouveau/nouveau_uvmm.c +++ b/drivers/gpu/drm/nouveau/nouveau_uvmm.c @@ -1534,7 +1534,7 @@ nouveau_uvmm_bind_job_cleanup(struct nouveau_job *job) nouveau_uvmm_bind_job_put(bind_job); } -static struct nouveau_job_ops nouveau_bind_job_ops = { +static const struct nouveau_job_ops nouveau_bind_job_ops = { .submit = nouveau_uvmm_bind_job_submit, .armed_submit = nouveau_uvmm_bind_job_armed_submit, .run = nouveau_uvmm_bind_job_run, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c index abe41f7a3404..cf58f9da9139 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c @@ -54,6 +54,8 @@ #include <nvrm/535.113.01/nvidia/kernel/inc/vgpu/rpc_global_enums.h> #include <linux/acpi.h> +#include <linux/ctype.h> +#include <linux/parser.h> #define GSP_MSG_MIN_SIZE GSP_PAGE_SIZE #define GSP_MSG_MAX_SIZE GSP_PAGE_MIN_SIZE * 16 @@ -1080,53 +1082,365 @@ r535_gsp_rpc_unloading_guest_driver(struct nvkm_gsp *gsp, bool suspend) return nvkm_gsp_rpc_wr(gsp, rpc, true); } +enum registry_type { + REGISTRY_TABLE_ENTRY_TYPE_DWORD = 1, /* 32-bit unsigned integer */ + REGISTRY_TABLE_ENTRY_TYPE_BINARY = 2, /* Binary blob */ + REGISTRY_TABLE_ENTRY_TYPE_STRING = 3, /* Null-terminated string */ +}; + +/* An arbitrary limit to the length of a registry key */ +#define REGISTRY_MAX_KEY_LENGTH 64 + +/** + * registry_list_entry - linked list member for a registry key/value + * @head: list_head struct + * @type: dword, binary, or string + * @klen: the length of name of the key + * @vlen: the length of the value + * @key: the key name + * @dword: the data, if REGISTRY_TABLE_ENTRY_TYPE_DWORD + * @binary: the data, if TYPE_BINARY or TYPE_STRING + * + * Every registry key/value is represented internally by this struct. + * + * Type DWORD is a simple 32-bit unsigned integer, and its value is stored in + * @dword. + * + * Types BINARY and STRING are variable-length binary blobs. The only real + * difference between BINARY and STRING is that STRING is null-terminated and + * is expected to contain only printable characters. + * + * Note: it is technically possible to have multiple keys with the same name + * but different types, but this is not useful since GSP-RM expects keys to + * have only one specific type. + */ +struct registry_list_entry { + struct list_head head; + enum registry_type type; + size_t klen; + char key[REGISTRY_MAX_KEY_LENGTH]; + size_t vlen; + u32 dword; /* TYPE_DWORD */ + u8 binary[] __counted_by(vlen); /* TYPE_BINARY or TYPE_STRING */ +}; + +/** + * add_registry -- adds a registry entry + * @gsp: gsp pointer + * @key: name of the registry key + * @type: type of data + * @data: pointer to value + * @length: size of data, in bytes + * + * Adds a registry key/value pair to the registry database. + * + * This function collects the registry information in a linked list. After + * all registry keys have been added, build_registry() is used to create the + * RPC data structure. + * + * registry_rpc_size is a running total of the size of all registry keys. + * It's used to avoid an O(n) calculation of the size when the RPC is built. + * + * Returns 0 on success, or negative error code on error. + */ +static int add_registry(struct nvkm_gsp *gsp, const char *key, + enum registry_type type, const void *data, size_t length) +{ + struct registry_list_entry *reg; + const size_t nlen = strnlen(key, REGISTRY_MAX_KEY_LENGTH) + 1; + size_t alloc_size; /* extra bytes to alloc for binary or string value */ + + if (nlen > REGISTRY_MAX_KEY_LENGTH) + return -EINVAL; + + alloc_size = (type == REGISTRY_TABLE_ENTRY_TYPE_DWORD) ? 0 : length; + + reg = kmalloc(sizeof(*reg) + alloc_size, GFP_KERNEL); + if (!reg) + return -ENOMEM; + + switch (type) { + case REGISTRY_TABLE_ENTRY_TYPE_DWORD: + reg->dword = *(const u32 *)(data); + break; + case REGISTRY_TABLE_ENTRY_TYPE_BINARY: + case REGISTRY_TABLE_ENTRY_TYPE_STRING: + memcpy(reg->binary, data, alloc_size); + break; + default: + nvkm_error(&gsp->subdev, "unrecognized registry type %u for '%s'\n", + type, key); + kfree(reg); + return -EINVAL; + } + + memcpy(reg->key, key, nlen); + reg->klen = nlen; + reg->vlen = length; + reg->type = type; + + list_add_tail(®->head, &gsp->registry_list); + gsp->registry_rpc_size += sizeof(PACKED_REGISTRY_ENTRY) + nlen + alloc_size; + + return 0; +} + +static int add_registry_num(struct nvkm_gsp *gsp, const char *key, u32 value) +{ + return add_registry(gsp, key, REGISTRY_TABLE_ENTRY_TYPE_DWORD, + &value, sizeof(u32)); +} + +static int add_registry_string(struct nvkm_gsp *gsp, const char *key, const char *value) +{ + return add_registry(gsp, key, REGISTRY_TABLE_ENTRY_TYPE_STRING, + value, strlen(value) + 1); +} + +/** + * build_registry -- create the registry RPC data + * @gsp: gsp pointer + * @registry: pointer to the RPC payload to fill + * + * After all registry key/value pairs have been added, call this function to + * build the RPC. + * + * The registry RPC looks like this: + * + * +-----------------+ + * |NvU32 size; | + * |NvU32 numEntries;| + * +-----------------+ + * +----------------------------------------+ + * |PACKED_REGISTRY_ENTRY | + * +----------------------------------------+ + * |Null-terminated key (string) for entry 0| + * +----------------------------------------+ + * |Binary/string data value for entry 0 | (only if necessary) + * +----------------------------------------+ + * + * +----------------------------------------+ + * |PACKED_REGISTRY_ENTRY | + * +----------------------------------------+ + * |Null-terminated key (string) for entry 1| + * +----------------------------------------+ + * |Binary/string data value for entry 1 | (only if necessary) + * +----------------------------------------+ + * ... (and so on, one copy for each entry) + * + * + * The 'data' field of an entry is either a 32-bit integer (for type DWORD) + * or an offset into the PACKED_REGISTRY_TABLE (for types BINARY and STRING). + * + * All memory allocated by add_registry() is released. + */ +static void build_registry(struct nvkm_gsp *gsp, PACKED_REGISTRY_TABLE *registry) +{ + struct registry_list_entry *reg, *n; + size_t str_offset; + unsigned int i = 0; + + registry->numEntries = list_count_nodes(&gsp->registry_list); + str_offset = struct_size(registry, entries, registry->numEntries); + + list_for_each_entry_safe(reg, n, &gsp->registry_list, head) { + registry->entries[i].type = reg->type; + registry->entries[i].length = reg->vlen; + + /* Append the key name to the table */ + registry->entries[i].nameOffset = str_offset; + memcpy((void *)registry + str_offset, reg->key, reg->klen); + str_offset += reg->klen; + + switch (reg->type) { + case REGISTRY_TABLE_ENTRY_TYPE_DWORD: + registry->entries[i].data = reg->dword; + break; + case REGISTRY_TABLE_ENTRY_TYPE_BINARY: + case REGISTRY_TABLE_ENTRY_TYPE_STRING: + /* If the type is binary or string, also append the value */ + memcpy((void *)registry + str_offset, reg->binary, reg->vlen); + registry->entries[i].data = str_offset; + str_offset += reg->vlen; + break; + default: + break; + } + + i++; + list_del(®->head); + kfree(reg); + } + + /* Double-check that we calculated the sizes correctly */ + WARN_ON(gsp->registry_rpc_size != str_offset); + + registry->size = gsp->registry_rpc_size; +} + +/** + * clean_registry -- clean up registry memory in case of error + * @gsp: gsp pointer + * + * Call this function to clean up all memory allocated by add_registry() + * in case of error and build_registry() is not called. + */ +static void clean_registry(struct nvkm_gsp *gsp) +{ + struct registry_list_entry *reg, *n; + + list_for_each_entry_safe(reg, n, &gsp->registry_list, head) { + list_del(®->head); + kfree(reg); + } + + gsp->registry_rpc_size = sizeof(PACKED_REGISTRY_TABLE); +} + +MODULE_PARM_DESC(NVreg_RegistryDwords, + "A semicolon-separated list of key=integer pairs of GSP-RM registry keys"); +static char *NVreg_RegistryDwords; +module_param(NVreg_RegistryDwords, charp, 0400); + /* dword only */ struct nv_gsp_registry_entries { const char *name; u32 value; }; +/** + * r535_registry_entries - required registry entries for GSP-RM + * + * This array lists registry entries that are required for GSP-RM to + * function correctly. + * + * RMSecBusResetEnable - enables PCI secondary bus reset + * RMForcePcieConfigSave - forces GSP-RM to preserve PCI configuration + * registers on any PCI reset. + */ static const struct nv_gsp_registry_entries r535_registry_entries[] = { { "RMSecBusResetEnable", 1 }, { "RMForcePcieConfigSave", 1 }, }; #define NV_GSP_REG_NUM_ENTRIES ARRAY_SIZE(r535_registry_entries) +/** + * strip - strips all characters in 'reject' from 's' + * @s: string to strip + * @reject: string of characters to remove + * + * 's' is modified. + * + * Returns the length of the new string. + */ +static size_t strip(char *s, const char *reject) +{ + char *p = s, *p2 = s; + size_t length = 0; + char c; + + do { + while ((c = *p2) && strchr(reject, c)) + p2++; + + *p++ = c = *p2++; + length++; + } while (c); + + return length; +} + +/** + * r535_gsp_rpc_set_registry - build registry RPC and call GSP-RM + * @gsp: gsp pointer + * + * The GSP-RM registry is a set of key/value pairs that configure some aspects + * of GSP-RM. The keys are strings, and the values are 32-bit integers. + * + * The registry is built from a combination of a static hard-coded list (see + * above) and entries passed on the driver's command line. + */ static int r535_gsp_rpc_set_registry(struct nvkm_gsp *gsp) { PACKED_REGISTRY_TABLE *rpc; - char *strings; - int str_offset; - int i; - size_t rpc_size = struct_size(rpc, entries, NV_GSP_REG_NUM_ENTRIES); + unsigned int i; + int ret; - /* add strings + null terminator */ - for (i = 0; i < NV_GSP_REG_NUM_ENTRIES; i++) - rpc_size += strlen(r535_registry_entries[i].name) + 1; + INIT_LIST_HEAD(&gsp->registry_list); + gsp->registry_rpc_size = sizeof(PACKED_REGISTRY_TABLE); - rpc = nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_SET_REGISTRY, rpc_size); - if (IS_ERR(rpc)) - return PTR_ERR(rpc); + for (i = 0; i < NV_GSP_REG_NUM_ENTRIES; i++) { + ret = add_registry_num(gsp, r535_registry_entries[i].name, + r535_registry_entries[i].value); + if (ret) + goto fail; + } - rpc->numEntries = NV_GSP_REG_NUM_ENTRIES; + /* + * The NVreg_RegistryDwords parameter is a string of key=value + * pairs separated by semicolons. We need to extract and trim each + * substring, and then parse the substring to extract the key and + * value. + */ + if (NVreg_RegistryDwords) { + char *p = kstrdup(NVreg_RegistryDwords, GFP_KERNEL); + char *start, *next = p, *equal; + + if (!p) { + ret = -ENOMEM; + goto fail; + } - str_offset = offsetof(typeof(*rpc), entries[NV_GSP_REG_NUM_ENTRIES]); - strings = (char *)rpc + str_offset; - for (i = 0; i < NV_GSP_REG_NUM_ENTRIES; i++) { - int name_len = strlen(r535_registry_entries[i].name) + 1; - - rpc->entries[i].nameOffset = str_offset; - rpc->entries[i].type = 1; - rpc->entries[i].data = r535_registry_entries[i].value; - rpc->entries[i].length = 4; - memcpy(strings, r535_registry_entries[i].name, name_len); - strings += name_len; - str_offset += name_len; + /* Remove any whitespace from the parameter string */ + strip(p, " \t\n"); + + while ((start = strsep(&next, ";"))) { + long value; + + equal = strchr(start, '='); + if (!equal || equal == start || equal[1] == 0) { + nvkm_error(&gsp->subdev, + "ignoring invalid registry string '%s'\n", + start); + continue; + } + + /* Truncate the key=value string to just key */ + *equal = 0; + + ret = kstrtol(equal + 1, 0, &value); + if (!ret) { + ret = add_registry_num(gsp, start, value); + } else { + /* Not a number, so treat it as a string */ + ret = add_registry_string(gsp, start, equal + 1); + } + + if (ret) { + nvkm_error(&gsp->subdev, + "ignoring invalid registry key/value '%s=%s'\n", + start, equal + 1); + continue; + } + } + + kfree(p); + } + + rpc = nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_SET_REGISTRY, gsp->registry_rpc_size); + if (IS_ERR(rpc)) { + ret = PTR_ERR(rpc); + goto fail; } - rpc->size = str_offset; + + build_registry(gsp, rpc); return nvkm_gsp_rpc_wr(gsp, rpc, false); + +fail: + clean_registry(gsp); + return ret; } #if defined(CONFIG_ACPI) && defined(CONFIG_X86) |