diff options
author | Tomas Winkler <tomas.winkler@intel.com> | 2022-04-19 22:33:09 +0300 |
---|---|---|
committer | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2022-04-21 21:34:09 +0300 |
commit | a98c30fdc00e146daed013598f10708d6b0ef11e (patch) | |
tree | 66d26c5bc1e41c74d55f5c8f7d59fcb29f4951a4 /drivers/misc/mei/hw-me.c | |
parent | 1e3dc1d8622b2699e6cf1cc06885105b13c9c514 (diff) | |
download | linux-a98c30fdc00e146daed013598f10708d6b0ef11e.tar.xz |
mei: add support for graphics system controller (gsc) devices
GSC is a graphics system controller, based on CSE, it provides
a chassis controller for graphics discrete cards, as well as it
supports media protection on selected devices.
mei_gsc binds to a auxiliary devices exposed by Intel discrete
driver i915.
v2: fix error check in mei_gsc_probe
v3: update MODULE_LICENSE ("GPL" is preferred over "GPL v2" and they
both map to GPL version 2)
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> #v3
Link: https://patchwork.freedesktop.org/patch/msgid/20220419193314.526966-3-daniele.ceraolospurio@intel.com
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
-rw-r--r-- | drivers/misc/mei/hw-me.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 719fee9af156..03945d3b34da 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1226,6 +1226,7 @@ irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id) me_intr_disable(dev, hcsr); return IRQ_WAKE_THREAD; } +EXPORT_SYMBOL_GPL(mei_me_irq_quick_handler); /** * mei_me_irq_thread_handler - function called after ISR to handle the interrupt @@ -1326,6 +1327,7 @@ end: mutex_unlock(&dev->device_lock); return IRQ_HANDLED; } +EXPORT_SYMBOL_GPL(mei_me_irq_thread_handler); static const struct mei_hw_ops mei_me_hw_ops = { @@ -1440,6 +1442,12 @@ static bool mei_me_fw_type_sps_ign(const struct pci_dev *pdev) #define MEI_CFG_KIND_ITOUCH \ .kind = "itouch" +#define MEI_CFG_TYPE_GSC \ + .kind = "gsc" + +#define MEI_CFG_TYPE_GSCFI \ + .kind = "gscfi" + #define MEI_CFG_FW_SPS_IGN \ .quirk_probe = mei_me_fw_type_sps_ign @@ -1572,6 +1580,18 @@ static const struct mei_cfg mei_me_pch15_sps_cfg = { MEI_CFG_FW_SPS_IGN, }; +/* Graphics System Controller */ +static const struct mei_cfg mei_me_gsc_cfg = { + MEI_CFG_TYPE_GSC, + MEI_CFG_PCH8_HFS, +}; + +/* Graphics System Controller Firmware Interface */ +static const struct mei_cfg mei_me_gscfi_cfg = { + MEI_CFG_TYPE_GSCFI, + MEI_CFG_PCH8_HFS, +}; + /* * mei_cfg_list - A list of platform platform specific configurations. * Note: has to be synchronized with enum mei_cfg_idx. @@ -1592,6 +1612,8 @@ static const struct mei_cfg *const mei_cfg_list[] = { [MEI_ME_PCH12_SPS_ITOUCH_CFG] = &mei_me_pch12_itouch_sps_cfg, [MEI_ME_PCH15_CFG] = &mei_me_pch15_cfg, [MEI_ME_PCH15_SPS_CFG] = &mei_me_pch15_sps_cfg, + [MEI_ME_GSC_CFG] = &mei_me_gsc_cfg, + [MEI_ME_GSCFI_CFG] = &mei_me_gscfi_cfg, }; const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx) @@ -1602,7 +1624,8 @@ const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx) return NULL; return mei_cfg_list[idx]; -}; +} +EXPORT_SYMBOL_GPL(mei_me_get_cfg); /** * mei_me_dev_init - allocates and initializes the mei device structure @@ -1637,4 +1660,4 @@ struct mei_device *mei_me_dev_init(struct device *parent, return dev; } - +EXPORT_SYMBOL_GPL(mei_me_dev_init); |