From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Edgar E. Iglesias" Subject: [RFC for-4.8 5/6] xen/arm: Add an mmio-sram device Date: Fri, 20 May 2016 17:51:27 +0200 Message-ID: <1463759488-11900-6-git-send-email-edgar.iglesias@gmail.com> References: <1463759488-11900-1-git-send-email-edgar.iglesias@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1463759488-11900-1-git-send-email-edgar.iglesias@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel@lists.xen.org Cc: edgar.iglesias@xilinx.com, julien.grall@arm.com, sstabellini@kernel.org List-Id: xen-devel@lists.xenproject.org RnJvbTogIkVkZ2FyIEUuIElnbGVzaWFzIiA8ZWRnYXIuaWdsZXNpYXNAeGlsaW54LmNvbT4KCkFk ZCBhbiBtbWlvLXNyYW0gZGV2aWNlLiBUaGlzIGRldmljZSB0YWtlcyBjYXJlIG9mIG1hcHBpbmcK bW1pby1zcmFtIHJlZ2lvbnMgYXMgTUVNT1JZIGFzIG9wcG9zZWQgdG8gdGhlIGdlbmVyaWMgRFQK bWFwcGluZ3MgYXMgREVWSUNFLgoKV2Ugb25seSBtYXAgdGhlIG91dGVyIHJlZ2lvbnMgYXMgY2hp bGRyZW4gb2YgbW1pby1zcmFtIG5vZGVzCmRlc2NyaWJlIGFsbG9jYXRpb25zIHdpdGhpbiBpdCB0 aGF0IHJlYWxseSBvbmx5IG1lYW4gc29tZXRoaW5nCnRvIHRoZSBndWVzdC4KClNpZ25lZC1vZmYt Ynk6IEVkZ2FyIEUuIElnbGVzaWFzIDxlZGdhci5pZ2xlc2lhc0B4aWxpbnguY29tPgotLS0KIHhl bi9hcmNoL2FybS9NYWtlZmlsZSAgICB8ICAxICsKIHhlbi9hcmNoL2FybS9tbWlvLXNyYW0uYyB8 IDkyICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwogMiBm aWxlcyBjaGFuZ2VkLCA5MyBpbnNlcnRpb25zKCspCiBjcmVhdGUgbW9kZSAxMDA2NDQgeGVuL2Fy Y2gvYXJtL21taW8tc3JhbS5jCgpkaWZmIC0tZ2l0IGEveGVuL2FyY2gvYXJtL01ha2VmaWxlIGIv eGVuL2FyY2gvYXJtL01ha2VmaWxlCmluZGV4IGVhZDBjYzAuLjIyNGM5YWUgMTAwNjQ0Ci0tLSBh L3hlbi9hcmNoL2FybS9NYWtlZmlsZQorKysgYi94ZW4vYXJjaC9hcm0vTWFrZWZpbGUKQEAgLTE4 LDYgKzE4LDcgQEAgb2JqLXkgKz0gaW8ubwogb2JqLXkgKz0gaXJxLm8KIG9iai15ICs9IGtlcm5l bC5vCiBvYmoteSArPSBtbS5vCitvYmoteSArPSBtbWlvLXNyYW0ubwogb2JqLXkgKz0gcDJtLm8K IG9iai15ICs9IHBlcmNwdS5vCiBvYmoteSArPSBndWVzdGNvcHkubwpkaWZmIC0tZ2l0IGEveGVu L2FyY2gvYXJtL21taW8tc3JhbS5jIGIveGVuL2FyY2gvYXJtL21taW8tc3JhbS5jCm5ldyBmaWxl IG1vZGUgMTAwNjQ0CmluZGV4IDAwMDAwMDAuLmUwZGJmN2MKLS0tIC9kZXYvbnVsbAorKysgYi94 ZW4vYXJjaC9hcm0vbW1pby1zcmFtLmMKQEAgLTAsMCArMSw5MiBAQAorLyoKKyAqIHhlbi9hcmNo L2FybS9tbWlvLXNyYW0uYworICoKKyAqIE1NSU8tU1JBTQorICoKKyAqIEVkZ2FyIEUuIElnbGVz aWFzIDxlZGdhci5pZ2xlc2lhc0B4aWxpbnguY29tPgorICogQ29weXJpZ2h0IChjKSAyMDE2IFhp bGlueCBJbmMuCisgKgorICogVGhpcyBwcm9ncmFtIGlzIGZyZWUgc29mdHdhcmU7IHlvdSBjYW4g cmVkaXN0cmlidXRlIGl0IGFuZC9vciBtb2RpZnkKKyAqIGl0IHVuZGVyIHRoZSB0ZXJtcyBvZiB0 aGUgR05VIEdlbmVyYWwgUHVibGljIExpY2Vuc2UgYXMgcHVibGlzaGVkIGJ5CisgKiB0aGUgRnJl ZSBTb2Z0d2FyZSBGb3VuZGF0aW9uOyBlaXRoZXIgdmVyc2lvbiAyIG9mIHRoZSBMaWNlbnNlLCBv cgorICogKGF0IHlvdXIgb3B0aW9uKSBhbnkgbGF0ZXIgdmVyc2lvbi4KKyAqCisgKiBUaGlzIHBy b2dyYW0gaXMgZGlzdHJpYnV0ZWQgaW4gdGhlIGhvcGUgdGhhdCBpdCB3aWxsIGJlIHVzZWZ1bCwK KyAqIGJ1dCBXSVRIT1VUIEFOWSBXQVJSQU5UWTsgd2l0aG91dCBldmVuIHRoZSBpbXBsaWVkIHdh cnJhbnR5IG9mCisgKiBNRVJDSEFOVEFCSUxJVFkgb3IgRklUTkVTUyBGT1IgQSBQQVJUSUNVTEFS IFBVUlBPU0UuICBTZWUgdGhlCisgKiBHTlUgR2VuZXJhbCBQdWJsaWMgTGljZW5zZSBmb3IgbW9y ZSBkZXRhaWxzLgorICovCisKKyNpbmNsdWRlIDx4ZW4vY29uZmlnLmg+CisjaW5jbHVkZSA8eGVu L2xpYi5oPgorI2luY2x1ZGUgPHhlbi9pbml0Lmg+CisjaW5jbHVkZSA8eGVuL21tLmg+CisjaW5j bHVkZSA8eGVuL2lvY2FwLmg+CisjaW5jbHVkZSA8eGVuL3NjaGVkLmg+CisjaW5jbHVkZSA8eGVu L2Vycm5vLmg+CisjaW5jbHVkZSA8eGVuL2xpc3QuaD4KKyNpbmNsdWRlIDx4ZW4vZGV2aWNlX3Ry ZWUuaD4KKyNpbmNsdWRlIDx4ZW4vbGliZmR0L2xpYmZkdC5oPgorI2luY2x1ZGUgPHhlbi9zaXpl cy5oPgorI2luY2x1ZGUgPGFzbS9kb21haW4uaD4KKyNpbmNsdWRlIDxhc20vcGxhdGZvcm0uaD4K KyNpbmNsdWRlIDxhc20vZGV2aWNlLmg+CisKKy8vICNkZWZpbmUgREVCVUdfRFQKKworI2lmZGVm IERFQlVHX0RUCisjIGRlZmluZSBEUFJJTlQoZm10LCBhcmdzLi4uKSBwcmludGsoWEVOTE9HX0RF QlVHIGZtdCwgIyNhcmdzKQorI2Vsc2UKKyMgZGVmaW5lIERQUklOVChmbXQsIGFyZ3MuLi4pIGRv IHt9IHdoaWxlICggMCApCisjZW5kaWYKKworc3RhdGljIGludCBzcmFtX21hcChzdHJ1Y3QgZG9t YWluICpkLCBzdHJ1Y3QgZHRfZGV2aWNlX25vZGUgKmRldikKK3sKKwl1bnNpZ25lZCBpbnQgbmFk ZHI7CisJdTY0IGFkZHIsIHNpemU7CisJaW50IHJlcyA9IDA7CisJaW50IGk7CisKKwluYWRkciA9 IGR0X251bWJlcl9vZl9hZGRyZXNzKGRldik7CisKKwkvKiBHaXZlIHBlcm1zIHRvIGFjY2VzcyB0 aGUgcmVnaW9uLiAgKi8KKwlyZXMgPSBpb21lbV9wZXJtaXRfYWNjZXNzKGQsIHBhZGRyX3RvX3Bm bihhZGRyKSwKKwkJCQkgIHBhZGRyX3RvX3BmbihQQUdFX0FMSUdOKGFkZHIgKyBzaXplIC0gMSkp KTsKKworCS8qCisJICogTWFwIHRoZSBtZW1vcnkgcmVnaW9ucy4KKwkgKgorCSAqIFdlIG9ubHkg bWFwIHRoZSBvdXRlciByZWdpb25zLiBDaGlsZCByZWdpb25zIHJlcHJlc2VudAorCSAqIHN1YiBh bGxvY2F0aW9ucyB0aGF0IHJlYWxseSBhcmUgdGhlIGd1ZXN0J3MgYnVzaW5lc3MuCisJICovCisJ Zm9yIChpID0gMDsgaSA8IG5hZGRyOyBpKyspCisJeworCQlyZXMgPSBkdF9kZXZpY2VfZ2V0X2Fk ZHJlc3MoZGV2LCBpLCAmYWRkciwgJnNpemUpOworCQlpZiAocmVzKSB7CisJCQlwcmludGsoWEVO TE9HX0VSUgorCQkJCSJVbmFibGUgdG8gcmV0cmlldmUgYWRkcmVzcyAldSBmb3IgJXNcbiIsCisJ CQkJaSwgZHRfbm9kZV9mdWxsX25hbWUoZGV2KSk7CisJCQlyZXR1cm4gcmVzOworCQl9CisKKwkJ RFBSSU5UKCIgIC0gTUVNT1JZOiAlcyAlMDEwIlBSSXg2NCIgLSAlMDEwIlBSSXg2NCJcbiIsCisJ CSAgICAgICBkdF9ub2RlX2Z1bGxfbmFtZShkZXYpLCBhZGRyLCBhZGRyICsgc2l6ZSk7CisJCXJl cyA9IG1hcF9yZWdpb25zX3J3eF9jYWNoZShkLCBwYWRkcl90b19wZm4oYWRkciAmIFBBR0VfTUFT SyksCisJCQkJCSAgICBESVZfUk9VTkRfVVAoc2l6ZSwgUEFHRV9TSVpFKSwKKwkJCQkJICAgIHBh ZGRyX3RvX3BmbihhZGRyICYgUEFHRV9NQVNLKSk7CisJCWlmIChyZXMpCisJCQlyZXR1cm4gcmVz OworCX0KKwlyZXR1cm4gcmVzOworfQorCitzdGF0aWMgY29uc3Qgc3RydWN0IGR0X2RldmljZV9t YXRjaCBzcmFtX2R0X21hdGNoW10gX19pbml0Y29uc3QgPQoreworCURUX01BVENIX0NPTVBBVElC TEUoIm1taW8tc3JhbSIpLAorCXsgLyogc2VudGluZWwgKi8gfSwKK307CisKK0RUX0RFVklDRV9T VEFSVChzcmFtLCAiTU1JTy1TUkFNIiwgREVWSUNFX01FTU9SWSkKKwkuZHRfbWF0Y2ggPSBzcmFt X2R0X21hdGNoLAorCS5tYXAgPSBzcmFtX21hcCwKK0RUX0RFVklDRV9FTkQKLS0gCjIuNS4wCgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK