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Message-ID: <CA+CmpXt5q93e2TQJzfY4afSEMPWijPU+Ks+cgrVDVqUM4=y3Cw@mail.gmail.com>
Date: Fri, 5 Jul 2019 13:52:49 +0300
From: Yehezkel Bernat <yehezkelshb@...il.com>
To: Mika Westerberg <mika.westerberg@...ux.intel.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
Andreas Noever <andreas.noever@...il.com>,
Michael Jamet <michael.jamet@...el.com>,
"Rafael J . Wysocki" <rjw@...ysocki.net>,
Len Brown <lenb@...nel.org>, Lukas Wunner <lukas@...ner.de>,
Mario Limonciello <Mario.Limonciello@...l.com>,
Anthony Wong <anthony.wong@...onical.com>,
linux-acpi@...r.kernel.org
Subject: Re: [PATCH 2/8] thunderbolt: Move NVM upgrade support flag to struct icm
On Fri, Jul 5, 2019 at 12:58 PM Mika Westerberg
<mika.westerberg@...ux.intel.com> wrote:
>
> @@ -1913,12 +1915,7 @@ static int icm_start(struct tb *tb)
> if (IS_ERR(tb->root_switch))
> return PTR_ERR(tb->root_switch);
>
> - /*
> - * NVM upgrade has not been tested on Apple systems and they
> - * don't provide images publicly either. To be on the safe side
> - * prevent root switch NVM upgrade on Macs for now.
> - */
> - tb->root_switch->no_nvm_upgrade = x86_apple_machine;
> + tb->root_switch->no_nvm_upgrade = !icm->can_upgrade_nvm;
> tb->root_switch->rpm = icm->rpm;
>
> ret = tb_switch_add(tb->root_switch);
> @@ -2021,6 +2018,7 @@ struct tb *icm_probe(struct tb_nhi *nhi)
> switch (nhi->pdev->device) {
> case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_NHI:
> case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_NHI:
> + icm->can_upgrade_nvm = true;
> icm->is_supported = icm_fr_is_supported;
> icm->get_route = icm_fr_get_route;
> icm->save_devices = icm_fr_save_devices;
> @@ -2038,6 +2036,13 @@ struct tb *icm_probe(struct tb_nhi *nhi)
> case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_NHI:
> case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_NHI:
> icm->max_boot_acl = ICM_AR_PREBOOT_ACL_ENTRIES;
> + /*
> + * NVM upgrade has not been tested on Apple systems and
> + * they don't provide images publicly either. To be on
> + * the safe side prevent root switch NVM upgrade on Macs
> + * for now.
> + */
> + icm->can_upgrade_nvm = !x86_apple_machine;
> icm->is_supported = icm_ar_is_supported;
> icm->cio_reset = icm_ar_cio_reset;
> icm->get_mode = icm_ar_get_mode;
> @@ -2054,6 +2059,7 @@ struct tb *icm_probe(struct tb_nhi *nhi)
> case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_NHI:
> case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_NHI:
> icm->max_boot_acl = ICM_AR_PREBOOT_ACL_ENTRIES;
> + icm->can_upgrade_nvm = true;
Shouldn't this be also !x86_apple_machine just like AR?
(For FR, we don't use ICM on Apple machines, as much as I remember, so it's fine
to enable it there unconditionally for ICM code path.)
> icm->is_supported = icm_ar_is_supported;
> icm->cio_reset = icm_tr_cio_reset;
> icm->get_mode = icm_ar_get_mode;
> --
> 2.20.1
>
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