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drm/i915/gvt: introduce a new flag F_CMD_WRITE_PATCH

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F_CMD_WRITE_PATCH means command write to this register needs to be patched

Cc: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20201223034553.17272-1-yan.y.zhao@intel.com
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Yan Zhao
2020-12-23 11:45:53 +08:00
committed by Zhenyu Wang
parent 1a8811930c
commit bed42f13ca
1 changed files with 31 additions and 0 deletions
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31
drivers/gpu/drm/i915/gvt/gvt.h
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@@ -261,6 +261,8 @@ struct intel_gvt_mmio {
* logical context image
*/
#define F_SR_IN_CTX (1 << 7)
/* Value of command write of this reg needs to be patched */
#define F_CMD_WRITE_PATCH (1 << 8)
struct gvt_mmio_block *mmio_block;
unsigned int num_mmio_block;
@@ -685,6 +687,35 @@ static inline void intel_gvt_mmio_set_sr_in_ctx(
}
void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu);
/**
* intel_gvt_mmio_set_cmd_write_patch -
* mark an MMIO if its cmd write needs to be
* patched
* @gvt: a GVT device
* @offset: register offset
*
*/
static inline void intel_gvt_mmio_set_cmd_write_patch(
struct intel_gvt *gvt, unsigned int offset)
{
gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_WRITE_PATCH;
}
/**
* intel_gvt_mmio_is_cmd_write_patch - check if an mmio's cmd access needs to
* be patched
* @gvt: a GVT device
* @offset: register offset
*
* Returns:
* True if GPU commmand write to an MMIO should be patched
*/
static inline bool intel_gvt_mmio_is_cmd_write_patch(
struct intel_gvt *gvt, unsigned int offset)
{
return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_WRITE_PATCH;
}
void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu);
void intel_gvt_debugfs_init(struct intel_gvt *gvt);
void intel_gvt_debugfs_clean(struct intel_gvt *gvt);