diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
| commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
| tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/macintosh/smu.c | |
| parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) | |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/macintosh/smu.c')
| -rw-r--r-- | drivers/macintosh/smu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index d531f8044..d6f72c826 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -38,6 +38,7 @@ #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/slab.h> +#include <linux/memblock.h> #include <asm/byteorder.h> #include <asm/io.h> @@ -99,6 +100,7 @@ static DEFINE_MUTEX(smu_mutex); static struct smu_device *smu; static DEFINE_MUTEX(smu_part_access); static int smu_irq_inited; +static unsigned long smu_cmdbuf_abs; static void smu_i2c_retry(unsigned long data); @@ -479,8 +481,13 @@ int __init smu_init (void) printk(KERN_INFO "SMU: Driver %s %s\n", VERSION, AUTHOR); + /* + * SMU based G5s need some memory below 2Gb. Thankfully this is + * called at a time where memblock is still available. + */ + smu_cmdbuf_abs = memblock_alloc_base(4096, 4096, 0x80000000UL); if (smu_cmdbuf_abs == 0) { - printk(KERN_ERR "SMU: Command buffer not allocated !\n"); + printk(KERN_ERR "SMU: Command buffer allocation failed !\n"); ret = -EINVAL; goto fail_np; } |