From: Ben Skeggs Date: Mon, 8 Sep 2014 03:29:04 +0000 (+1000) Subject: drm/gk104-/fb/ram: parse ramcfg data for all frequencies up-front X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d26e74895f500a67091d6e93814f4889b94ce7ff;p=linux-beck.git drm/gk104-/fb/ram: parse ramcfg data for all frequencies up-front Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h index 871e73914b24..a0bd0ead90ab 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h @@ -111,6 +111,7 @@ extern struct nouveau_oclass *gm107_fb_oclass; #include struct nouveau_ram_data { + struct list_head head; struct nvbios_ramcfg bios; u32 freq; }; diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c index 1fa45c5e50d7..6af51ac3f0b4 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c @@ -136,6 +136,7 @@ struct nve0_ram { struct nouveau_ram base; struct nve0_ramfuc fuc; + struct list_head cfg; u32 parts; u32 pmask; u32 pnuts; @@ -934,58 +935,24 @@ nve0_ram_calc_sddr3(struct nouveau_fb *pfb, u32 freq) ******************************************************************************/ static int -nve0_ram_calc_data(struct nouveau_fb *pfb, u32 freq, +nve0_ram_calc_data(struct nouveau_fb *pfb, u32 khz, struct nouveau_ram_data *data) { - struct nouveau_bios *bios = nouveau_bios(pfb); struct nve0_ram *ram = (void *)pfb->ram; - u8 strap, cnt, len; - - /* lookup memory config data relevant to the target frequency */ - ram->base.rammap.data = nvbios_rammapEm(bios, freq / 1000, - &ram->base.rammap.version, - &ram->base.rammap.size, - &cnt, &len, &data->bios); - if (!ram->base.rammap.data || ram->base.rammap.version != 0x11 || - ram->base.rammap.size < 0x09) { - nv_error(pfb, "invalid/missing rammap entry\n"); - return -EINVAL; - } - - /* locate specific data set for the attached memory */ - strap = nvbios_ramcfg_index(nv_subdev(pfb)); - ram->base.ramcfg.data = nvbios_rammapSp(bios, ram->base.rammap.data, - ram->base.rammap.version, - ram->base.rammap.size, - cnt, len, strap, - &ram->base.ramcfg.version, - &ram->base.ramcfg.size, - &data->bios); - if (!ram->base.ramcfg.data || ram->base.ramcfg.version != 0x11 || - ram->base.ramcfg.size < 0x08) { - nv_error(pfb, "invalid/missing ramcfg entry\n"); - return -EINVAL; - } - - /* lookup memory timings, if bios says they're present */ - if (data->bios.ramcfg_timing != 0xff) { - ram->base.timing.data = - nvbios_timingEp(bios, data->bios.ramcfg_timing, - &ram->base.timing.version, - &ram->base.timing.size, &cnt, &len, - &data->bios); - if (!ram->base.timing.data || - ram->base.timing.version != 0x20 || - ram->base.timing.size < 0x33) { - nv_error(pfb, "invalid/missing timing entry\n"); - return -EINVAL; + struct nouveau_ram_data *cfg; + u32 mhz = khz / 1000; + + list_for_each_entry(cfg, &ram->cfg, head) { + if (mhz >= cfg->bios.rammap_min && + mhz <= cfg->bios.rammap_max) { + *data = *cfg; + data->freq = khz; + return 0; } - } else { - ram->base.timing.data = 0; } - data->freq = freq; - return 0; + nv_error(ram, "ramcfg data for %dMHz not found\n", mhz); + return -EINVAL; } static int @@ -1318,6 +1285,66 @@ nve0_ram_init(struct nouveau_object *object) return nve0_ram_train_init(pfb); } +static int +nve0_ram_ctor_data(struct nve0_ram *ram, u8 ramcfg, int i) +{ + struct nouveau_fb *pfb = (void *)nv_object(ram)->parent; + struct nouveau_bios *bios = nouveau_bios(pfb); + struct nouveau_ram_data *cfg; + u8 ver, hdr, cnt, len; + u32 data; + int ret; + + if (!(cfg = kmalloc(sizeof(*cfg), GFP_KERNEL))) + return -ENOMEM; + + /* memory config data for a range of target frequencies */ + data = nvbios_rammapEp(bios, i, &ver, &hdr, &cnt, &len, &cfg->bios); + if (ret = -ENOENT, !data) + goto done; + if (ret = -ENOSYS, ver != 0x11 || hdr < 0x12) + goto done; + + /* ... and a portion specific to the attached memory */ + data = nvbios_rammapSp(bios, data, ver, hdr, cnt, len, ramcfg, + &ver, &hdr, &cfg->bios); + if (ret = -EINVAL, !data) + goto done; + if (ret = -ENOSYS, ver != 0x11 || hdr < 0x0a) + goto done; + + /* lookup memory timings, if bios says they're present */ + if (cfg->bios.ramcfg_timing != 0xff) { + data = nvbios_timingEp(bios, cfg->bios.ramcfg_timing, + &ver, &hdr, &cnt, &len, + &cfg->bios); + if (ret = -EINVAL, !data) + goto done; + if (ret = -ENOSYS, ver != 0x20 || hdr < 0x33) + goto done; + } + + list_add_tail(&cfg->head, &ram->cfg); + ret = 0; +done: + if (ret) + kfree(cfg); + return ret; +} + +static void +nve0_ram_dtor(struct nouveau_object *object) +{ + struct nve0_ram *ram = (void *)object; + struct nouveau_ram_data *cfg, *tmp; + + list_for_each_entry_safe(cfg, tmp, &ram->cfg, head) { + kfree(cfg); + } + + nouveau_ram_destroy(&ram->base); +} + static int nve0_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, @@ -1329,6 +1356,7 @@ nve0_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct dcb_gpio_func func; struct nve0_ram *ram; int ret, i; + u8 ramcfg = nvbios_ramcfg_index(nv_subdev(pfb)); u32 tmp; ret = nvc0_ram_create(parent, engine, oclass, 0x022554, &ram); @@ -1336,6 +1364,8 @@ nve0_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, if (ret) return ret; + INIT_LIST_HEAD(&ram->cfg); + switch (ram->base.type) { case NV_MEM_TYPE_DDR3: case NV_MEM_TYPE_GDDR5: @@ -1367,7 +1397,16 @@ nve0_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, } } - // parse bios data for both pll's + /* parse ramcfg data for all possible target frequencies */ + for (i = 0; !ret; i++) { + ret = nve0_ram_ctor_data(ram, ramcfg, i); + if (ret && ret != -ENOENT) { + nv_error(pfb, "failed to parse ramcfg data\n"); + return ret; + } + } + + /* parse bios data for both pll's */ ret = nvbios_pll_parse(bios, 0x0c, &ram->fuc.refpll); if (ret) { nv_error(pfb, "mclk refpll data not found\n"); @@ -1380,6 +1419,7 @@ nve0_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; } + /* lookup memory voltage gpios */ ret = gpio->find(gpio, 0, 0x18, DCB_GPIO_UNUSED, &func); if (ret == 0) { ram->fuc.r_gpioMV = ramfuc_reg(0x00d610 + (func.line * 0x04)); @@ -1488,7 +1528,7 @@ nve0_ram_oclass = { .handle = 0, .ofuncs = &(struct nouveau_ofuncs) { .ctor = nve0_ram_ctor, - .dtor = _nouveau_ram_dtor, + .dtor = nve0_ram_dtor, .init = nve0_ram_init, .fini = _nouveau_ram_fini, }