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drm/i915/gvt: Constify gvt_mmio_block

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These are never modified, so make them const to allow the compiler to
put it in read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20211204105527.15741-6-rikard.falkeborn@gmail.com
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
This commit is contained in:
Rikard Falkeborn
2021-12-04 11:55:23 +01:00
committed by Zhi Wang
parent 4642077775
commit ca1777797a
2 changed files with 7 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/gvt/gvt.h
View File

@@ -272,7 +272,7 @@ struct intel_gvt_mmio {
/* Value of command write of this reg needs to be patched */
#define F_CMD_WRITE_PATCH (1 << 8)
struct gvt_mmio_block *mmio_block;
const struct gvt_mmio_block *mmio_block;
unsigned int num_mmio_block;
DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);

12
drivers/gpu/drm/i915/gvt/handlers.c
View File

@@ -3628,11 +3628,11 @@ static int init_bxt_mmio_info(struct intel_gvt *gvt)
return 0;
}
static struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt,
unsigned int offset)
static const struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt,
unsigned int offset)
{
unsigned long device = intel_gvt_get_device_type(gvt);
struct gvt_mmio_block *block = gvt->mmio.mmio_block;
const struct gvt_mmio_block *block = gvt->mmio.mmio_block;
int num = gvt->mmio.num_mmio_block;
int i;
@@ -3671,7 +3671,7 @@ void intel_gvt_clean_mmio_info(struct intel_gvt *gvt)
* accessible (should have no F_CMD_ACCESS flag).
* otherwise, need to update cmd_reg_handler in cmd_parser.c
*/
static struct gvt_mmio_block mmio_blocks[] = {
static const struct gvt_mmio_block mmio_blocks[] = {
{D_SKL_PLUS, _MMIO(DMC_MMIO_START_RANGE), 0x3000, NULL, NULL},
{D_ALL, _MMIO(MCHBAR_MIRROR_BASE_SNB), 0x40000, NULL, NULL},
{D_ALL, _MMIO(VGT_PVINFO_PAGE), VGT_PVINFO_SIZE,
@@ -3754,7 +3754,7 @@ int intel_gvt_for_each_tracked_mmio(struct intel_gvt *gvt,
int (*handler)(struct intel_gvt *gvt, u32 offset, void *data),
void *data)
{
struct gvt_mmio_block *block = gvt->mmio.mmio_block;
const struct gvt_mmio_block *block = gvt->mmio.mmio_block;
struct intel_gvt_mmio_info *e;
int i, j, ret;
@@ -3872,7 +3872,7 @@ int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
struct intel_gvt *gvt = vgpu->gvt;
struct intel_gvt_mmio_info *mmio_info;
struct gvt_mmio_block *mmio_block;
const struct gvt_mmio_block *mmio_block;
gvt_mmio_func func;
int ret;