From: Tom St Denis Date: Wed, 15 Mar 2017 09:34:25 +0000 (-0400) Subject: drm/amd/amdgpu: Fix debugfs reg read/write address width X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=801a6aa9a63c90724e8899982ad8c7f16be1e2cd;p=openwrt%2Fstaging%2Fblogic.git drm/amd/amdgpu: Fix debugfs reg read/write address width The MMIO space is wider now so we mask the lower 22 bits instead of 18. Signed-off-by: Tom St Denis Reviewed-by: Christian König Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 4120b351a8e5..a3a105ec99e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2590,7 +2590,7 @@ static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf, use_bank = 0; } - *pos &= 0x3FFFF; + *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || @@ -2666,7 +2666,7 @@ static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf, use_bank = 0; } - *pos &= 0x3FFFF; + *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) ||