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Allow the caller to pass the size based on the intended usecase. Signed-off-by: Michał Winiarski Reviewed-by: Michal Wajdeczko --- drivers/gpu/drm/xe/xe_guc_buf.c | 44 ++++++++++++++++++++++++--------- drivers/gpu/drm/xe/xe_guc_buf.h | 1 + 2 files changed, 34 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_guc_buf.c b/drivers/gpu/drm/xe/xe_guc_buf.c index 4d8a4712309f4..3ce4425001303 100644 --- a/drivers/gpu/drm/xe/xe_guc_buf.c +++ b/drivers/gpu/drm/xe/xe_guc_buf.c @@ -13,6 +13,8 @@ #include "xe_guc_buf.h" #include "xe_sa.h" +#define XE_GUC_BUF_CACHE_DEFAULT_SIZE SZ_8K + static struct xe_guc *cache_to_guc(struct xe_guc_buf_cache *cache) { return container_of(cache, struct xe_guc, buf); @@ -23,21 +25,12 @@ static struct xe_gt *cache_to_gt(struct xe_guc_buf_cache *cache) return guc_to_gt(cache_to_guc(cache)); } -/** - * xe_guc_buf_cache_init() - Initialize the GuC Buffer Cache. - * @cache: the &xe_guc_buf_cache to initialize - * - * The Buffer Cache allows to obtain a reusable buffer that can be used to pass - * indirect H2G data to GuC without a need to create a ad-hoc allocation. - * - * Return: 0 on success or a negative error code on failure. - */ -int xe_guc_buf_cache_init(struct xe_guc_buf_cache *cache) +static int guc_buf_cache_init(struct xe_guc_buf_cache *cache, u32 size) { struct xe_gt *gt = cache_to_gt(cache); struct xe_sa_manager *sam; - sam = __xe_sa_bo_manager_init(gt_to_tile(gt), SZ_8K, 0, sizeof(u32)); + sam = __xe_sa_bo_manager_init(gt_to_tile(gt), size, 0, sizeof(u32)); if (IS_ERR(sam)) return PTR_ERR(sam); cache->sam = sam; @@ -48,6 +41,35 @@ int xe_guc_buf_cache_init(struct xe_guc_buf_cache *cache) return 0; } +/** + * xe_guc_buf_cache_init() - Initialize the GuC Buffer Cache. + * @cache: the &xe_guc_buf_cache to initialize + * + * The Buffer Cache allows to obtain a reusable buffer that can be used to pass + * data to GuC or read data from GuC without a need to create a ad-hoc allocation. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_guc_buf_cache_init(struct xe_guc_buf_cache *cache) +{ + return guc_buf_cache_init(cache, XE_GUC_BUF_CACHE_DEFAULT_SIZE); +} + +/** + * xe_guc_buf_cache_init_with_size() - Initialize the GuC Buffer Cache. + * @cache: the &xe_guc_buf_cache to initialize + * @size: size in bytes + * + * Like xe_guc_buf_cache_init(), except it allows the caller to make the cache + * buffer larger, allowing to accommodate larger objects. + * + * Return: 0 on success or a negative error code on failure. + */ +int xe_guc_buf_cache_init_with_size(struct xe_guc_buf_cache *cache, u32 size) +{ + return guc_buf_cache_init(cache, max(XE_GUC_BUF_CACHE_DEFAULT_SIZE, size)); +} + /** * xe_guc_buf_cache_dwords() - Number of dwords the GuC Buffer Cache supports. * @cache: the &xe_guc_buf_cache to query diff --git a/drivers/gpu/drm/xe/xe_guc_buf.h b/drivers/gpu/drm/xe/xe_guc_buf.h index c5e0f1fd24d74..e3cca553fb004 100644 --- a/drivers/gpu/drm/xe/xe_guc_buf.h +++ b/drivers/gpu/drm/xe/xe_guc_buf.h @@ -12,6 +12,7 @@ #include "xe_guc_buf_types.h" int xe_guc_buf_cache_init(struct xe_guc_buf_cache *cache); +int xe_guc_buf_cache_init_with_size(struct xe_guc_buf_cache *cache, u32 size); u32 xe_guc_buf_cache_dwords(struct xe_guc_buf_cache *cache); struct xe_guc_buf xe_guc_buf_reserve(struct xe_guc_buf_cache *cache, u32 dwords); struct xe_guc_buf xe_guc_buf_from_data(struct xe_guc_buf_cache *cache, -- 2.51.2