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d="scan'208";a="263871295" Received: from srr4-3-linux-103-aknautiy.iind.intel.com ([10.223.34.160]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2026 21:22:29 -0700 From: Ankit Nautiyal To: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: ville.syrjala@linux.intel.com, jouni.hogander@intel.com, animesh.manna@intel.com, Ankit Nautiyal Subject: [PATCH 13/19] drm/i915/psr: Write the PR config DPCDs in burst mode Date: Mon, 30 Mar 2026 09:36:50 +0530 Message-ID: <20260330040656.4116502-14-ankit.k.nautiyal@intel.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260330040656.4116502-1-ankit.k.nautiyal@intel.com> References: <20260330040656.4116502-1-ankit.k.nautiyal@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" UmVwbGFjZSB0aGUgY29uc2VjdXRpdmUgc2luZ2xlLWJ5dGUgd3JpdGVzIHRvIFBBTkVMX1JFUExB WV9DT05GSUcgYW5kCkNPTkZJRzIgd2l0aCBvbmUgZHJtX2RwX2RwY2Rfd3JpdGUoKSBidXJzdCBz dGFydGluZyBhdCBQQU5FTF9SRVBMQVlfQ09ORklHLApyZWR1Y2luZyBBVVggdHJhbnNhY3Rpb25z LgoKdjI6IERyb3AgZXh0cmEgY29uZGl0aW9ucywgYW5kIG9wdGltaXplIHZhcmlhYmxlcy4gKFZp bGxlKQoKU3VnZ2VzdGVkLWJ5OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXgu aW50ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBBbmtpdCBOYXV0aXlhbCA8YW5raXQuay5uYXV0aXlh bEBpbnRlbC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9wc3Iu YyB8IDI5ICsrKysrKysrKysrKysrLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDE3IGluc2Vy dGlvbnMoKyksIDEyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2Rpc3BsYXkvaW50ZWxfcHNyLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2lu dGVsX3Bzci5jCmluZGV4IDJmMWI0OGNkOGVmZC4uY2EwNTQxMzVjYTMwIDEwMDY0NAotLS0gYS9k cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX3Bzci5jCisrKyBiL2RyaXZlcnMvZ3B1 L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfcHNyLmMKQEAgLTc4MiwyNyArNzgyLDMyIEBAIHN0YXRp YyBib29sIHBzcjJfc3VfcmVnaW9uX2V0X3ZhbGlkKHN0cnVjdCBpbnRlbF9jb25uZWN0b3IgKmNv bm5lY3RvciwgYm9vbCBwYW5lCiBzdGF0aWMgdm9pZCBfcGFuZWxfcmVwbGF5X2VuYWJsZV9zaW5r KHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAsCiAJCQkJICAgICAgY29uc3Qgc3RydWN0IGludGVs X2NydGNfc3RhdGUgKmNydGNfc3RhdGUpCiB7Ci0JdTggdmFsID0gRFBfUEFORUxfUkVQTEFZX0VO QUJMRSB8Ci0JCURQX1BBTkVMX1JFUExBWV9WU0NfU0RQX0NSQ19FTiB8Ci0JCURQX1BBTkVMX1JF UExBWV9VTlJFQ09WRVJBQkxFX0VSUk9SX0VOIHwKLQkJRFBfUEFORUxfUkVQTEFZX1JGQl9TVE9S QUdFX0VSUk9SX0VOIHwKLQkJRFBfUEFORUxfUkVQTEFZX0FDVElWRV9GUkFNRV9DUkNfRVJST1Jf RU47Ci0JdTggcGFuZWxfcmVwbGF5X2NvbmZpZzIgPSBEUF9QQU5FTF9SRVBMQVlfQ1JDX1ZFUklG SUNBVElPTjsKKwlzdHJ1Y3QgaW50ZWxfZGlzcGxheSAqZGlzcGxheSA9IHRvX2ludGVsX2Rpc3Bs YXkoaW50ZWxfZHApOworCXU4IHBhbmVsX3JlcGxheV9jb25maWdbMl07CisJaW50IHJldDsKKwor CXBhbmVsX3JlcGxheV9jb25maWdbMF0gPSBEUF9QQU5FTF9SRVBMQVlfRU5BQkxFIHwKKwkJCQkg RFBfUEFORUxfUkVQTEFZX1ZTQ19TRFBfQ1JDX0VOIHwKKwkJCQkgRFBfUEFORUxfUkVQTEFZX1VO UkVDT1ZFUkFCTEVfRVJST1JfRU4gfAorCQkJCSBEUF9QQU5FTF9SRVBMQVlfUkZCX1NUT1JBR0Vf RVJST1JfRU4gfAorCQkJCSBEUF9QQU5FTF9SRVBMQVlfQUNUSVZFX0ZSQU1FX0NSQ19FUlJPUl9F TjsKKwlwYW5lbF9yZXBsYXlfY29uZmlnWzFdID0gRFBfUEFORUxfUkVQTEFZX0NSQ19WRVJJRklD QVRJT047CiAKIAlpZiAoY3J0Y19zdGF0ZS0+aGFzX3NlbF91cGRhdGUpCi0JCXZhbCB8PSBEUF9Q QU5FTF9SRVBMQVlfU1VfRU5BQkxFOworCQlwYW5lbF9yZXBsYXlfY29uZmlnWzBdIHw9IERQX1BB TkVMX1JFUExBWV9TVV9FTkFCTEU7CiAKIAlpZiAoY3J0Y19zdGF0ZS0+ZW5hYmxlX3BzcjJfc3Vf cmVnaW9uX2V0KQotCQl2YWwgfD0gRFBfUEFORUxfUkVQTEFZX0VOQUJMRV9TVV9SRUdJT05fRVQ7 CisJCXBhbmVsX3JlcGxheV9jb25maWdbMF0gfD0gRFBfUEFORUxfUkVQTEFZX0VOQUJMRV9TVV9S RUdJT05fRVQ7CiAKIAlpZiAoY3J0Y19zdGF0ZS0+cmVxX3BzcjJfc2RwX3ByaW9yX3NjYW5saW5l KQotCQlwYW5lbF9yZXBsYXlfY29uZmlnMiB8PQorCQlwYW5lbF9yZXBsYXlfY29uZmlnWzFdIHw9 CiAJCQlEUF9QQU5FTF9SRVBMQVlfU1VfUkVHSU9OX1NDQU5MSU5FX0NBUFRVUkU7CiAKLQlkcm1f ZHBfZHBjZF93cml0ZWIoJmludGVsX2RwLT5hdXgsIFBBTkVMX1JFUExBWV9DT05GSUcsIHZhbCk7 CisJcmV0ID0gZHJtX2RwX2RwY2Rfd3JpdGUoJmludGVsX2RwLT5hdXgsIFBBTkVMX1JFUExBWV9D T05GSUcsCisJCQkJcGFuZWxfcmVwbGF5X2NvbmZpZywgc2l6ZW9mKHBhbmVsX3JlcGxheV9jb25m aWcpKTsKIAotCWRybV9kcF9kcGNkX3dyaXRlYigmaW50ZWxfZHAtPmF1eCwgUEFORUxfUkVQTEFZ X0NPTkZJRzIsCi0JCQkgICBwYW5lbF9yZXBsYXlfY29uZmlnMik7CisJaWYgKHJldCAhPSBzaXpl b2YocGFuZWxfcmVwbGF5X2NvbmZpZykpCisJCWRybV9kYmdfa21zKGRpc3BsYXktPmRybSwgIkZh aWxlZCB0byB3cml0ZSBQYW5lbCBSZXBsYXkgQ29uZmlnc1xuIik7CiB9CiAKIHN0YXRpYyB2b2lk IF9wc3JfZW5hYmxlX3Npbmsoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCwKLS0gCjIuNDUuMgoK