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authorTom St Denis <tom.stdenis@amd.com>2017-03-15 05:34:25 -0400
committerAlex Deucher <alexander.deucher@amd.com>2017-03-15 16:21:34 -0400
commit801a6aa9a63c90724e8899982ad8c7f16be1e2cd (patch)
tree9eb1f732473ce61d4232586ed4eecf30e26422a6 /drivers
parent18a8de1bc37e97dff1c96ee6cf49adbd02a0f775 (diff)
downloadlinux-801a6aa9a63c90724e8899982ad8c7f16be1e2cd.tar.bz2
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 <tom.stdenis@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c4
1 files changed, 2 insertions, 2 deletions
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) ||