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drm/i915/gvt: remove the unused sreg

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code cleanup. sreg is not used now. remove it for code cleanness.

v3: remove unnecessary array_size in vreg's memory allocation (min he)
v2: do not allocate memory for sreg. (min he)

Reviewed-by: He, Min <min.he@intel.com>
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Yan Zhao 2019-03-10 21:40:45 -04:00 committed by Zhenyu Wang
parent ed47c5cb8e
commit 9c1c8416fc
3 changed files with 3 additions and 15 deletions
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5
drivers/gpu/drm/i915/gvt/gvt.h
View File

@ -94,7 +94,6 @@ struct intel_vgpu_fence {
struct intel_vgpu_mmio {
void *vreg;
void *sreg;
};
#define INTEL_GVT_MAX_BAR_NUM 4
@ -447,10 +446,6 @@ void intel_vgpu_write_fence(struct intel_vgpu *vgpu,
(*(u64 *)(vgpu->mmio.vreg + i915_mmio_reg_offset(reg)))
#define vgpu_vreg64(vgpu, offset) \
(*(u64 *)(vgpu->mmio.vreg + (offset)))
#define vgpu_sreg_t(vgpu, reg) \
(*(u32 *)(vgpu->mmio.sreg + i915_mmio_reg_offset(reg)))
#define vgpu_sreg(vgpu, offset) \
(*(u32 *)(vgpu->mmio.sreg + (offset)))
#define for_each_active_vgpu(gvt, vgpu, id) \
idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \

5
drivers/gpu/drm/i915/gvt/handlers.c
View File

@ -3488,12 +3488,11 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
return mmio_info->read(vgpu, offset, pdata, bytes);
else {
u64 ro_mask = mmio_info->ro_mask;
u32 old_vreg = 0, old_sreg = 0;
u32 old_vreg = 0;
u64 data = 0;
if (intel_gvt_mmio_has_mode_mask(gvt, mmio_info->offset)) {
old_vreg = vgpu_vreg(vgpu, offset);
old_sreg = vgpu_sreg(vgpu, offset);
}
if (likely(!ro_mask))
@ -3515,8 +3514,6 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
vgpu_vreg(vgpu, offset) = (old_vreg & ~mask)
| (vgpu_vreg(vgpu, offset) & mask);
vgpu_sreg(vgpu, offset) = (old_sreg & ~mask)
| (vgpu_sreg(vgpu, offset) & mask);
}
}

8
drivers/gpu/drm/i915/gvt/mmio.c
View File

@ -239,7 +239,6 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr)
if (dmlr) {
memcpy(vgpu->mmio.vreg, mmio, info->mmio_size);
memcpy(vgpu->mmio.sreg, mmio, info->mmio_size);
vgpu_vreg_t(vgpu, GEN6_GT_THREAD_STATUS_REG) = 0;
@ -280,7 +279,6 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr)
* touched
*/
memcpy(vgpu->mmio.vreg, mmio, GVT_GEN8_MMIO_RESET_OFFSET);
memcpy(vgpu->mmio.sreg, mmio, GVT_GEN8_MMIO_RESET_OFFSET);
}
}
@ -296,12 +294,10 @@ int intel_vgpu_init_mmio(struct intel_vgpu *vgpu)
{
const struct intel_gvt_device_info *info = &vgpu->gvt->device_info;
vgpu->mmio.vreg = vzalloc(array_size(info->mmio_size, 2));
vgpu->mmio.vreg = vzalloc(info->mmio_size);
if (!vgpu->mmio.vreg)
return -ENOMEM;
vgpu->mmio.sreg = vgpu->mmio.vreg + info->mmio_size;
intel_vgpu_reset_mmio(vgpu, true);
return 0;
@ -315,5 +311,5 @@ int intel_vgpu_init_mmio(struct intel_vgpu *vgpu)
void intel_vgpu_clean_mmio(struct intel_vgpu *vgpu)
{
vfree(vgpu->mmio.vreg);
vgpu->mmio.vreg = vgpu->mmio.sreg = NULL;
vgpu->mmio.vreg = NULL;
}