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drm/amd/display: use kvmalloc for dc_state (v2) 

It's large and doesn't need contiguous memory.  Fixes
allocation failures in some cases.

v2: kvfree the memory.

Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-08-08 00:29:23 -05:00
parent 17b6d2d528
commit 31ec0dd380
1 changed files with 6 additions and 5 deletions
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11
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -23,6 +23,7 @@
*/ */
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/mm.h>
#include "dm_services.h" #include "dm_services.h"
@ -1171,8 +1172,8 @@ bool dc_post_update_surfaces_to_stream(struct dc *dc)
struct dc_state *dc_create_state(struct dc *dc) struct dc_state *dc_create_state(struct dc *dc)
{ {
struct dc_state *context = kzalloc(sizeof(struct dc_state), struct dc_state *context = kvzalloc(sizeof(struct dc_state),
GFP_KERNEL); GFP_KERNEL);
if (!context) if (!context)
return NULL; return NULL;
@ -1192,11 +1193,11 @@ struct dc_state *dc_create_state(struct dc *dc)
struct dc_state *dc_copy_state(struct dc_state *src_ctx) struct dc_state *dc_copy_state(struct dc_state *src_ctx)
{ {
int i, j; int i, j;
struct dc_state *new_ctx = kmemdup(src_ctx, struct dc_state *new_ctx = kvmalloc(sizeof(struct dc_state), GFP_KERNEL);
sizeof(struct dc_state), GFP_KERNEL);
if (!new_ctx) if (!new_ctx)
return NULL; return NULL;
memcpy(new_ctx, src_ctx, sizeof(struct dc_state));
for (i = 0; i < MAX_PIPES; i++) { for (i = 0; i < MAX_PIPES; i++) {
struct pipe_ctx *cur_pipe = &new_ctx->res_ctx.pipe_ctx[i]; struct pipe_ctx *cur_pipe = &new_ctx->res_ctx.pipe_ctx[i];
@ -1230,7 +1231,7 @@ static void dc_state_free(struct kref *kref)
{ {
struct dc_state *context = container_of(kref, struct dc_state, refcount); struct dc_state *context = container_of(kref, struct dc_state, refcount);
dc_resource_state_destruct(context); dc_resource_state_destruct(context);
kfree(context); kvfree(context);
} }
void dc_release_state(struct dc_state *context) void dc_release_state(struct dc_state *context)